A kit (110) for fastening a slab (106, 108) to a beam (104)includes a lower plate (110.1) with a central hole, applied on a lower face (106.2, 108.2) of the slab; an upper plate (110.3) with a central hole, applied on an upper face (106.1, 108.1) of the slab; a tubular spacer (110.2) extending through the slab; a bolt (110.4) inserted through the central hole of the upper plate (110.3), the tubular spacer (110.2), the central hole of the lower plate (110.1) and a hole in the beam (104); and a nut (110.5) engaging with the bolt (110.4) and resting on the beam (104). The lower plate (110.1) is permanently linked to the tubular spacer (110.2) while the upper plate (110.3) is not permanently linked to the tubular spacer (110.2) so as to allow insertion of the tubular spacer (110.2) in a drilling in the slab from its lower face.
A rear structure for an automotive vehicle having a fuel tank below the passenger seats and a powertrain in the back, including a lower structure and an upper structure, such that the lower and upper structure form together a closed hollow volume at least along the area where the fuel tank is located and wherein the upper structure is manufactured from one single metal blank.
B60K 6/28 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par des appareils, des organes ou des moyens spécialement adaptés aux VEH caractérisés par les moyens d'accumulation d'énergie électrique, p. ex. les batteries ou les condensateurs
B62D 21/03 - Châssis, c.-à-d. armature sur laquelle une carrosserie peut être montée comprenant des éléments d'armature disposés longitudinalement ou transversalement les éléments transversaux supportant la carrosserie
B62D 21/15 - Châssis, c.-à-d. armature sur laquelle une carrosserie peut être montée comportant des moyens amortisseurs de chocs, p. ex. châssis conçus pour changer de forme ou de dimensions d'une façon définitive ou temporaire à la suite d'une collision avec un autre corps
Steel part having a chemical composition comprising, by weight %, 0.18≤C≤0.27, 0.18≤Si≤0.30, 1.0≤Mn≤1.5, 0.14≤Cr≤0.25, 0.02≤Al≤0.06, 0.02≤Ti≤0.06, 0.0020≤B≤0.0040, 0≤S≤0.008, 0≤N≤0.020, the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, having a microstructure including, in surface fraction, 95% or more of martensite, the steel part having an ultimate tensile strength equal to or above 1350 MPa in the transverse direction, and a bending angle normalized to 1.5 mm thickness equal to or above 57° in the transverse direction.
C21D 9/48 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles tôles embouties
B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 8/04 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes pour produire des produits plats ou des bandes pour l'emboutissage profond
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 38/60 - Alliages ferreux, p. ex. aciers alliés contenant du plomb, du sélénium, du tellure, de l'antimoine, ou plus de 0,04% en poids de soufre
4.
STEEL SHEET FOR TOP COVER OF BATTERY PACK AND ITS MANUFACTURING METHOD
Top cover of a battery pack including a metallic coated steel sheet covered on both sides by an organic coating, wherein the organic coating is thinner on the inner side of the battery pack than on the outer side of the battery pack.
Steel part having a chemical composition including, by weight %, 0.18≤C≤0.27, 0.18≤Si≤0.30, 1.0≤Mn≤1.5, 0.14≤Cr≤0.25, 0.02≤Al≤0.06, 0.02≤Ti≤0.06, 0.0020≤B≤0.0040, 0≤S≤0.008, 0.008≤N≤0.020, the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, having a microstructure including, in surface fraction, 95% or more of martensite, wherein the surface fraction of TiN particles in the skin portion is equal to or greater than 200*10−6 inclusions/mm2 and the average equivalent diameter of the TiN particles in the skin portion is equal to or smaller than 2.0 microns.
outmodel,outmodelmodel) determined by a trained model (M) for steel strip heating in the heating section, whose inputs comprises the heating power setpoint and product and process parameters (PP) that include at least: a speed of the steel strip, an input temperature of the steel strip, a width of the steel strip, a thickness of the steel strip.
C21D 9/56 - Fours continus pour bandes ou fils métalliques
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C21D 9/62 - Fours continus pour bandes ou fils métalliques avec chauffage direct par résistance
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27D 19/00 - Aménagement des dispositifs de commande
7.
ELECTRONIC CONTROL SYSTEM FOR AN ANNEALING FURNACE AND ASSOCIATED CONTROL METHOD
outmodel,outmodelmodel) determined by a trained model (M) for steel strip heating in the heating section, whose inputs comprises the heating power setpoint and product and process parameters (PP) that include at least: a speed of the steel strip, an input temperature of the steel strip, a width of the steel strip, a thickness of the steel strip.
C21D 9/56 - Fours continus pour bandes ou fils métalliques
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C21D 9/62 - Fours continus pour bandes ou fils métalliques avec chauffage direct par résistance
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27D 19/00 - Aménagement des dispositifs de commande
A cold rolled and coated steel sheet, the steel including, 0.15%≤carbon≤0.25%, 1.5%≤manganese≤2.5%, 1%≤silicon≤2%, 0%≤aluminum≤0.09%, 0.1%≤chromium≤0.6%, 0%≤phosphorus≤0.02%, 0%≤sulfur≤0.03%, 0%≤nitrogen≤0.09%, 0%≤molybdenum≤0.5%, 0.001%≤niobium≤0.09%, 0%≤titanium≤0.06%, 0%≤vanadium≤0.1%, 0%≤nickel≤1%, 0%≤Copper≤1%, 0%≤calcium≤0.005%, 0%≤boron≤0.010%, 0%≤Magnesium≤0.05%, 0%≤Zirconium≤0.05%, 0%≤Cerium≤0.1%, and the balance including iron and unavoidable impurities, the steel sheet having a microstructure including 35% to 70% of cumulative presence of Bainite and Partitioned Martensite, 9% to 15% of residual austenite, 12% to 38% of ferrite and 5% to 15% fresh martensite in area fractions.
A method for side trimming, along a cutting, a moving steel strip including a heating step, in which the cutting line is heated to a temperature above Ac1, and a trimming step, in which the steel strip is mechanically cut along the cutting line at a temperature above Ac1.
B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs
B21B 45/00 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs
B23D 19/06 - Machines à cisailler ou dispositifs de cisaillage taillant au moyen de disques rotatifs ayant des disques de cisaillage rotatifs disposés par paires travaillant conjointement avec plusieurs paires de disques de cisaillage espacées travaillant simultanément, p. ex. pour rogner ou fabriquer des bandes
A continuous casting nozzle for manufacturing a composite metallic slab, the nozzle being located between a tundish and a mold, the nozzle including an upper part disposed downstream of the tundish, a dome disposed at the inlet of the upper part comprising splitter for splitting the initial stream of liquid metal, an internal wall located below the dome, creating at least two mixing chambers, injector for injecting powder through the dome to allow mixing with the liquid metal, and a lower part composed of at least a central channel with two lateral lower outlets and side channels with at least one lateral upper outlet by channel to allow the liquid metal to flow into the mold. A method of continuously casting, using a continuous casting nozzle related to the invention is also provided.
A method of manufacturing a hot rolled steel product is provided having a composition in weight percent being: 0.002≤C≤0.8, 0.1≤Mn≤12.0, Si≤2, Al≤2, Cr≤0.5, Nb≤0.08, Ti≤0.1 and a balance consisting of Fe, residual elements and unavoidable impurities, including the steps of i. acquiring an initial target composition with a content of manganese Mnt,i, ii. melting steel scraps comprising residual elements, iii. estimating the contents Mn0, Mo0, Sn0, Sb0 or As0, iv. determining an adjusted target composition with an adjusted content of manganese Mnt,a where Mnt,a=Mnt,I−MnRES with MnRES an adjustment term which combines corrective terms associated to the residual elements, v. adding elements to the steel melt so that Mn0+MnADD=Mnt,a, wherein MnADD represents the content of manganese added, vi. casting a semi-finished product, vii. hot rolling the semi-finished product.
A process for manufacturing a press-hardened part including the steps of A) providing a steel sheet provided with a coating, the coating including by weight percent, 7.5 to 8.5% of zinc, 2.7 to 3.5% of silicon, 1.0 to 3.0% of magnesium, up to 3.0% of iron as residual element, and optional elements chosen from Ni Zr, Hf, Sr, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr or Bi, the content by weight of each element being less than 0.3% and unavoidable impurities up to 0.02%, the balance being aluminum, B) cutting of the coated steel sheet to obtain a blank, C) heating the coated steel sheet in a furnace at a temperature set from 900 to 950° C. and during a time from 2.5 to 4.0 minutes, D) transferring into a press tool, and E) press-hardening to obtain press-hardened part.
A forged and hot rolled steel for rails and railway components, the steel including 0.2%≤carbon≤0.3%, 1%≤manganese≤2%, 0.5%≤silicon≤1.2%, 0.001%≤aluminum≤ 0.1%, 0.01%≤molybdenum≤0.5%, 0.5%≤chromium≤1.5%, 0%≤phosphorus≤ 0.02%, 0%≤sulfur≤0.02%, 0%≤nitrogen≤0.09%, 0%≤nickel≤1%, 0%≤bismuth≤ 0.05%, 0%≤copper≤1%, 0%≤tin≤0.1%, 0%≤niobium≤0.06%, 0%≤titanium≤ 0.1%, 0%≤vanadium≤0.1%, 0%≤calcium≤0.005%, 0.0005%≤boron≤0.005%, 0%≤Magnesium≤0.05%, 0%≤Zirconium≤0.05%, 0%≤Cerium≤0.1%, and the balance including iron and unavoidable impurities, the steel having a microstructure including≤ 80% bainite, 1% to 20% martensite, while having a cumulative optional presence of residual austenite, ferrite pearlite from 0% to 10% in area fractions.
A hot rolled steel plate having a composition including, by weight percent: C: 0.10-0.25%, Mn: 3.0-5.0%, Si: 0.80-1.60%, Al: 0.10%-0.60%, S≤0.010%, P≤ 0.020%, N≤0.008% the remainder of the composition being iron and unavoidable impurities resulting from the smelting, and having a microstructure consisting of, in surface fraction: from 5 to 10% of residual austenite, the rest being auto-tempered martensite.
Top cover assembly of a battery pack including: a top cover generally having an inverted tub shape, an inner reinforcement structure including at least one transverse inner reinforcement element extending inside the top cover in a substantially transverse direction, and an outer reinforcement structure including at least left and right outer reinforcement elements.
H01M 50/242 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par les propriétés physiques des boîtiers ou des bâtis, p. ex. dimensions adaptés pour protéger les batteries contre les vibrations, les collisions ou le gonflement
H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains
A metal powder having a composition including the following elements, expressed in content by weight: 12%≤Mo≤18%, 3%≤P≤7%, 0.5%≤C≤3%, 0.5%≤B≤5%, Si≤1%, the balance being Fe and unavoidable impurities resulting from the elaboration, the microstructure of the metal powder including at least 95 wt % of an amorphous phase, the remainder being made of crystalline phases.
C22C 45/02 - Alliages amorphes avec le fer comme constituant majeur
B22F 1/05 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules
B22F 1/08 - Poudres métalliques caractérisées par des particules ayant une microstructure amorphe
B22F 9/00 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
A High Manganese hot rolled steel having a composition including of the following elements 0.8%≤Carbon≤1.3%, 9.5%≤Manganese≤22%, 0.01%≤Silicon≤3%, 0.01%≤Aluminum≤3%, 0.03%≤Phosphorus≤0.1%, 0.03%≤Sulfur≤0.1%, 0%≤Nitrogen≤0.01%, 0%≤Niobium≤0.03%, 0%≤Titanium≤0.2%, 0%≤Chromium≤1.5%, 0%≤Molybdenum≤0.5%, 0%≤Calcium≤0.005%, 0.01%≤Copper≤2%, 0.01%≤Nickel≤3%, 0%≤Boron≤0.01%, 0%≤Magnesium≤0.005%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of the steel consisting in, in area fraction, 95% or more of Austenite, 0% to 5% Carbides wherein the grain size of the grains of Austenite is 15 microns or more.
C21D 9/52 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour fils métalliquesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour bandes métalliques
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
18.
ELECTROLYSIS APPARATUS FOR THE PRODUCTION OF IRON WITH AN IMPROVED GAS PERMEABLE ANODE PLATE
An apparatus for the production of iron through reduction of iron ore by an electrolysis reaction, the electrolysis reaction emitting a gas, the apparatus including a casing including a gas-permeable anode plate being made of a cellular material, a cathode plate, both facing each other and being separated by an electrolyte chamber, the gas-permeable anode plate being made of a cellular material including a plurality of cells, each cell being delimited by a circumferential wall and being open on the two opposite sides of the gas-permeable anode plate, the circumferential wall being made from a plurality of metallic sheets which are interlocked together with interlocking means.
C25C 1/06 - Production, récupération ou affinage électrolytique des métaux par électrolyse de solutions des métaux du groupe du fer, de métaux réfractaires ou du manganèse
A direct reduction method to manufacture a direct reduced iron product 12 having a carbon content less than 1.8% by weight and a shaft furnace exit temperature lower than 65° C. A carbon-containing cooling gas 30 is introduced into the cooling zone 3 of the shaft furnace 1 with a flow rate higher than 800 Nm3/ton of Direct Reduced Iron produced.
A method to define a microstructure of a steel during the hot rolling, including at least three passes, including the steps of a) defining a representative grain size value of the steel before a first rolling pass, b) defining, at the end of a first inter-pass, a proportion of recrystallised and of non-recrystallised grains, representative grain size and dislocation density for the recrystallised and said non-recrystallised grains, c) defining, at the end of a second inter-pass, the proportion of the different types of grains, representative grain sizes and dislocation densities of the grains, d) defining, before a third rolling pass, a proportion of the representative recrystallised and non-recrystallised grain, a representative recrystallised grain and a representative non-recrystallised grain defined.
A method of making a high strength base-hardened tee rail and the tee rail produced by the method. The method includes the steps of providing a carbon steel tee rail, the steel tee rail provided at a temperature between 70° and 800° C.; and cooling the steel tee rail at a cooling rate that the temperature in ° C. of the surface of the base of the steel tee rail, is maintained in a region between: an upper cooling rate boundary plot defined by an upper line connecting xy-coordinates (0 s, 800° C.), (80 s, 675° C.), (110 s, 650° C.) and (140 s, 635° C.); and a lower cooling rate boundary plot defined by a lower line connecting xy-coordinates (0 s, 700° C.), (80 s, 575° C.), (110 s, 550° C.) and (140 s, 535° C.).
A steel section has a web central portion connected on each side to a flange portion having a thickness of at least 100 mm. The steel section microstructure includes at least one kind of vanadium precipitates possibly comprising also one or more metal chosen among chromium, manganese and iron, the precipitates being chosen among nitrides, carbides, carbo-nitrides or any combination of them, more than 70% of such precipitates having a mean diameter below 6 nm. It also deals with a manufacturing method thereof.
A cold rolled, annealed and tempered steel sheet is provided, made of a steel having a composition including, by weight percent C: 0.03-0.18%, Mn: 4.5-10.0%, B: 0.0005-0.005%, Ti 0.010-0.050%, Si 0.1-1.20%, S≤0.010%, P≤0.020%, N≤0.010%, and including optionally one or more of the following elements, in weight percentage Al≤2.5%, Mo≤0.4%, Nb≤0.050%, Cr≤0.5%, V≤0.2%, a remainder of the composition being iron and unavoidable impurities resulting from the smelting, the steel sheet having a microstructure including, in surface fraction, from 0% to 30% of ferrite, from 3% to 30% of retained austenite, with a manganese content in austenite [Mn]γ, expressed in weight percent, such that Fγ×([Mn]γ-1.3×% Mn)2>1.00, a balance being tempered martensite.
A method for manufacturing pig iron in a smelting furnace including a vessel, the method including the following successive steps: loading DRI product in the vessel melting the DRI product to form a pig iron layer topped by a slag layer and injecting a desulphurizing reagent directly in the pig iron layer. It also deals with the manufacturing of steel from the-pig iron and the associated electrical smelting furnace.
A method for determining a temperature TST of a steel beam (2) after the beam has been water-cooled in a cooling machine, the method comprising: - acquiring cooling configuration data specifying which faces of the beam are impinged by water jets, and acquiring the corresponding water flow values, - for the different faces (W1, W2, F1 – F6) of the beam, determining, from the cooling configuration data, what cooling regime undergoes the face of the beam considered, the cooling regime being selected among, at least: direct water-cooling; powered cooling when the face has no water projected thereon, by any of the jets, but another face, which adjoins laterally the face considered, has water projected thereon; air-cooling; - computing cooling powers for the different faces of the beam, depending on the corresponding cooling regimes, and, when appropriate, depending on the associated water flow value.
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
G05B 19/4155 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par le déroulement du programme, c.-à-d. le déroulement d'un programme de pièce ou le déroulement d'une fonction machine, p. ex. choix d'un programme
B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés
B21B 37/74 - Commande de la température, p. ex. en refroidissant ou en chauffant les cylindres ou le produit
26.
STEEL PART, WIRE AND METHOD FOR MANUFACTURING A STEEL PART
B23K 35/02 - Baguettes, électrodes, matériaux ou environnements utilisés pour le brasage, le soudage ou le découpage caractérisés par des propriétés mécaniques, p. ex. par la forme
B23K 35/30 - Emploi de matériaux spécifiés pour le soudage ou le brasage dont le principal constituant fond à moins de 1550 C
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B33Y 80/00 - Produits obtenus par fabrication additive
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
The electrolysis device (1) for reducing iron oxides into metallic iron comprises : - at least one anode (6), extending between an inner surface (10) and an outer surface (12), opposite the inner surface (10), - at least one cathode (4) comprising a collecting surface (8) on which metallic iron is deposited after reduction of iron oxides, the collecting surface (8) facing the inner surface (10) of the anode (6), - an electrolytic bath comprising an anolyte (16), in which the anode (6) is immersed, and a catholyte (18), in which the cathode (4) is immersed, wherein the anode (6) extends in a housing (14) separating in a fluid tight manner the anolyte (16) from the catholyte (18), the chemical composition of the anolyte (16) being different from the chemical composition of the catholyte (18).
A hot-stamped coated steel part comprising a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer, the total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition: [Image disponible dans le document PDF, Image available in the PDF document] with [Image disponible dans le document PDF, Image available in the PDF document] The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks defined as: [Image disponible dans le document PDF, Image available in the PDF document]
29.
CRACK-CONTAINING HOT-STAMPED STEEL PART WITH A THIN COATING WITH EXCELLENT SPOT-WELDABILITY AND EXCELLENT PAINTING ADHESION
A hot-stamped coated steel part comprising a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer, the total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisf in the followin condition: 16 < Epc <40 with Formula I The hot- stamped coated steel part comprises an undeformed portion having a thickness epflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dCmin the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as: Formula II
Side structure (1) for a motor vehicle (3) including an inner and outer frame (11, 13) each forming a closed ring and having two openings corresponding to the front and rear doors (8, 10), wherein the inner and outer frames (11, 13) are each formed by hot stamping respectively an inner and an outer frame blank (111, 113), the outer frame blank being a single tailor welded blank made of steel and wherein the inner and outer frames (11,13) are assembled to form a hollow volume (7) between them.
The invention concerns an aqueous solution comprising at least one hydrate of zinc sulfate, and at least one P1-M1 copolymer prepared from monomers comprising a) an ethylenically unsaturated monomer P1 containing at least one phosphorus atom; and b) a monomer M1 selected from (meth)acrylates, hydroxyalkyl (meth)acrylates, and (meth)acrylic acid, a kit for the preparation thereof, the use of the solution for improving the degreasability of the outer surface of an oiled metallic coating based on zinc or its alloys, which coats at least one face of a steel substrate, a method for preparing an oiled Zn-coated steel substrate, a steel substrate and an automotive part made therefrom.
C25D 3/22 - Dépôt électrochimiqueBains utilisés à partir de solutions de zinc
C08F 230/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore
C09D 143/02 - Homopolymères ou copolymères de monomères contenant du phosphore
C23C 14/22 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le procédé de revêtement
C25D 3/56 - Dépôt électrochimiqueBains utilisés à partir de solutions d'alliages
C25D 5/48 - Post-traitement des surfaces revêtues de métaux par voie électrolytique
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
33.
METHOD FOR MANUFACTURING A HIGH STRENGTH COLD ROLLED AND HEATED STEEL SHEET WITH IMPROVED FLATNESS
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
34.
METHOD FOR MANUFACTURING A HIGH STRENGTH STEEL SHEET HAVING IMPROVED FLATNESS
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
35.
METHOD FOR DETERMINING A TEMPERATURE OF A STEEL BEAM AFTER WATER-COOLING, ASSOCIATED ELECTRONIC SYSTEM
A method for determining a temperature of a steel beam (2) after the beam has been water-cooled in a cooling machine, the method comprising: - acquiring cooling configuration data specifying which faces of the beam are impinged by water jets, and what are the corresponding water flow values, - for the different faces (W1, W2, F1 – F6) of the beam, determining, from the cooling configuration data, what cooling regime undergoes the face of the beam considered, the cooling regime being selected among, at least: direct water-cooling; powered cooling when the face has no water projected thereon, by any of the jets, but, for an other of said faces which adjoins laterally the face considered, said other face has water projected thereon; air-cooling; - computing cooling powers for the different faces of the beam, depending on the corresponding cooling regimes, and, when appropriate, depending on the associated water flow value.
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
G05B 19/4155 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par le déroulement du programme, c.-à-d. le déroulement d'un programme de pièce ou le déroulement d'une fonction machine, p. ex. choix d'un programme
B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
G01B 7/06 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur pour mesurer l'épaisseur
G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
C23C 2/16 - Élimination de l'excès des revêtements fondusCommande ou régulation de l'épaisseur du revêtement en utilisant des fluides sous pression, p. ex. par des lames d'air
C23C 2/18 - Élimination de l'excès du revêtement fondu d'objets allongés
C23C 2/02 - Pré-traitement du matériau à revêtir, p. ex. pour le revêtement de parties déterminées de la surface
Rear side structure inner (10) for a pickup truck frame (1) manufactured by stamping an inner blank (10b) – said rear side structure inner (10) comprising a C- pillar, a belt rail, a wheelouse inner and a D-pillar portion (101, 102, 103, 104,).
Rear side structure outer (20) for a pickup truck frame (1) manufactured by stamping an outer blank (20b) – said rear side structure outer (20) comprising a C- pillar, a belt rail, a reinforcement a D-pillar portion (201, 202, 203, 204).
A steel sheet coated with an aluminum-based coating and a second zinc coating having a thickness less than or equal to 1.1 μm is provided. A method for preparing the coated steel sheet, a method for preparing a press-hardened part from the steel sheet, a press-hardened part, and the use of the press-hardened part are also provided.
C23C 14/22 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le procédé de revêtement
The invention concerns an aqueous solution comprising at least one hydrate of zinc sulfate, and at least one P1-M1 copolymer prepared from monomers comprising a) an ethylenically unsaturated monomer P1 containing at least one phosphorus atom; and b) a monomer M1 selected from (meth)acrylates, hydroxyalkyl (meth)acrylates, and (meth)acrylic acid, a kit for the preparation thereof, the use of the solution for improving the tribological properties of the outer surface of a metallic coating based on zinc or its alloys, which coats at least one face of a steel substrate, a method for preparing a Zn-coated steel substrate, a steel substrate and an automotive part made therefrom.
C25D 3/22 - Dépôt électrochimiqueBains utilisés à partir de solutions de zinc
C08F 230/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore
C09D 143/02 - Homopolymères ou copolymères de monomères contenant du phosphore
C25D 3/56 - Dépôt électrochimiqueBains utilisés à partir de solutions d'alliages
C25D 5/48 - Post-traitement des surfaces revêtues de métaux par voie électrolytique
C23C 14/22 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le procédé de revêtement
42.
SOLUTION FOR THE TREATMENT OF A ZN-COATED STEEL SHEET TO IMPROVE THE TRIBOLOGICAL PROPERTIES THEREOF
The invention concerns an aqueous solution comprising at least one hydrate of zinc sulfate, and at least one P1-M1 copolymer prepared from monomers comprising a) an ethylenically unsaturated monomer P1 containing at least one phosphorus atom; and b) a monomer M1 selected from (meth)acrylates, hydroxyalkyl (meth)acrylates, and (meth)acrylic acid, a kit for the preparation thereof, the use of the solution for improving the tribological properties of the outer surface of a metallic coating based on zinc or its alloys, which coats at least one face of a steel substrate, a method for preparing a Zn-coated steel substrate, a steel substrate and an automotive part made therefrom.
C25D 3/22 - Dépôt électrochimiqueBains utilisés à partir de solutions de zinc
C08F 230/02 - Copolymères de composés contenant un ou plusieurs radicaux aliphatiques non saturés, chaque radical ne contenant qu'une seule liaison double carbone-carbone et contenant du phosphore, du sélénium, du tellure ou un métal contenant du phosphore
C09D 143/02 - Homopolymères ou copolymères de monomères contenant du phosphore
C23C 14/22 - Revêtement par évaporation sous vide, pulvérisation cathodique ou implantation d'ions du matériau composant le revêtement caractérisé par le procédé de revêtement
C25D 3/56 - Dépôt électrochimiqueBains utilisés à partir de solutions d'alliages
C25D 5/48 - Post-traitement des surfaces revêtues de métaux par voie électrolytique
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
C23C 2/16 - Élimination de l'excès des revêtements fondusCommande ou régulation de l'épaisseur du revêtement en utilisant des fluides sous pression, p. ex. par des lames d'air
C23C 2/18 - Élimination de l'excès du revêtement fondu d'objets allongés
The invention relates to a process for hot-dip plating a steel strip on a galvanizing line comprising: (i) Acquiring the preset strip width Wp of the steel strip at the exit of the galvanizing line and the preset coating weight CWp of molten Zn- based alloy, CWp being greater than or equal to 400 g/m², (ii) providing the steel strip with an initial strip width W0 determined based on Wp and CWp so that the difference between W0 and Wp is at least two times bigger than an inferred faulty edging E determined based on CWp, (iii) dipping the steel strip in a bath of molten Zn-alloy comprising 0.5-12 wt% aluminium, 0.2-6 wt% magnesium, (iv) wiping the molten Zn-based alloy and adjusting the coating weight according to CWp, (v) cooling, (vi) trimming both edges of the steel strip to obtain the preset strip width Wp.
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
B21B 37/00 - Dispositifs ou procédés de commande spécialement adaptés aux laminoirs ou aux produits laminés
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
G05B 19/4155 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par le déroulement du programme, c.-à-d. le déroulement d'un programme de pièce ou le déroulement d'une fonction machine, p. ex. choix d'un programme
46.
COLD ROLLED AND HEAT-TREATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF
The invention relates to a cold rolled and heat-treated steel sheet having a composition comprising in percentage by weight: C : 0.03 - 0.12 %, Mn : 1.2 - 2.3%, Al : 0.01 - 0.1%, Nb : 0.01% - 0.1%, Ti ≤ 0.12%, P ≤ 0.09 %, S ≤ 0.09 %, N ≤ 0.009% and can contain Si ≤ 2 %, Cr ≤ 0.5 %, Ni ≤ 3%, Ca ≤ 0.005%, Cu ≤ 2%, Mo ≤ 0. 5%, V ≤ 0.1%, B ≤ 0.003%, Ce ≤ 0.1%, Mg ≤ 0.010%, Zr ≤ 0.010%, the remainder being iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 5% to 10% Cementite, 31 to 50% of Recrystallized ferrite wherein the average grain size of recrystallized ferrite is less than or equal to 2.5 microns, 45 to 64% of non-recrystallized ferrite, wherein the cumulated amount of recrystallized ferrite and non-recrystallized ferrite is from 85% to 95% and includes 0.5% to 2% of Carbides of Niobium, the optional cumulated amount of residual austenite and martensite being from 0% to 5%.
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C23C 2/04 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet caractérisé par le matériau de revêtement
The invention relates to a cold rolled and heat treated steel sheet having a composition comprising in percentage by weight: C : 0.02 - 0.12 %, Mn : 1.2 - 2.3%, Al : 0.01 - 0.1%, Nb : 0.01% - 0.1%, Ti : 0.01 - 0.12%, P ≤ 0.09 %, S ≤ 0.09 %, N ≤ 0.009% and can contain Si ≤ 2 %, Cr ≤ 0.5 %, Ni ≤ 3%, Ca ≤ 0.005%, Cu ≤ 2%, Mo ≤ 0. 5%, V ≤ 0.1%, B ≤ 0.003%, Ce ≤ 0.1%, Mg ≤ 0.010%, Zr ≤ 0.010%, the remainder being iron and unavoidable impurities caused by processing, the microstructure of said steel sheet comprising in area fraction, 2% to 10% Cementite, 30 to 60% of Recrystallized ferrite, 38 to 68% of non- recrystallized ferrite, wherein the cumulated amount of Recrystallized ferrite and Non-recrystallized ferrite is from 85% to 96% and includes 0.5% to 2% of Carbides of Niobium, the optional cumulated amount of residual austenite and martensite being from 0% to 5%.
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
C21D 6/00 - Traitement thermique des alliages ferreux
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
B32B 15/01 - Produits stratifiés composés essentiellement de métal toutes les couches étant composées exclusivement de métal
C23C 2/04 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet caractérisé par le matériau de revêtement
Rear side structure inner (10) for a pickup truck frame (1) manufactured by stamping an inner blank (10b) – said rear side structure inner (10) comprising a C- pillar, a belt rail, a wheelouse inner and a D-pillar portion (101, 102, 103, 104,).
Rear side structure outer (20) for a pickup truck frame (1) manufactured by stamping an outer blank (20b) – said rear side structure outer (20) comprising a C- pillar, a belt rail, a reinforcement a D-pillar portion (201, 202, 203, 204).
C23C 2/00 - Procédés de trempage à chaud ou d'immersion pour appliquer le matériau de revêtement à l'état fondu sans modifier la forme de l'objet immergéAppareils à cet effet
51.
METHOD FOR CONTROLLING A BEAM PROCESSING INSTALLATION, ASSOCIATED SYSTEM AND INSTALLATION
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
G05B 19/4155 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par le déroulement du programme, c.-à-d. le déroulement d'un programme de pièce ou le déroulement d'une fonction machine, p. ex. choix d'un programme
B21B 37/74 - Commande de la température, p. ex. en refroidissant ou en chauffant les cylindres ou le produit
The present invention relates to a cold rolling stand for rolling a metallic strip having: a pair of work rolls determining a roll bite, a first set of spraying devices able to spray a first lubricant onto said pair of work rolls, a second set of spraying devices able to spray a second lubricant upstream of said work rolls, a collector able to collect the first and second lubricants, an inversion system, a tank connected to the collector, to the first set of spraying devices and to the inversion system, the tank being able to contain the sprayed lubricant, the inversion system being connected to the second set of spraying devices. This invention also relates to a cold rolling process.
B21B 45/02 - Dispositifs pour le traitement de surface des pièces spécialement combinés aux laminoirs, disposés dans les laminoirs, ou adaptés pour être utilisés avec les laminoirs pour lubrifier, refroidir ou nettoyer
B21B 1/22 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies
A process of manufacturing a silicon-graphene-graphite composite for a Silicon-based anode of a lithium-ion battery, including bringing together silicon particles with a particle size distribution D10 above 100 nm and an exfoliatable graphene-based material in a first organic solvent, the weight ratio of silicon to exfoliatable graphene-based material being between 1.5 and 9, mixing at at least 500 rpm for at least 20 min so as to mill the silicon particles into nanoparticles, exfoliate at least a part of the exfoliatable graphene-based material into graphene and form a silicon-graphene composite, bringing together the silicon-graphene composite and graphite, the weight ratio of carbon to silicon being between 1.5 and 19 and the viscosity being between 0.025 and 160 Pa·s at 1 s−1 shear rate, and mixing for at least 2 min so as to form a silicon-graphene-graphite composite.
H01M 4/38 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs d'éléments simples ou d'alliages
H01M 4/02 - Électrodes composées d'un ou comprenant un matériau actif
H01M 4/133 - Électrodes à base de matériau carboné, p. ex. composés d'intercalation du graphite ou CFx
H01M 4/134 - Électrodes à base de métaux, de Si ou d'alliages
H01M 4/1393 - Procédés de fabrication d’électrodes à base de matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 4/1395 - Procédés de fabrication d’électrodes à base de métaux, de Si ou d'alliages
H01M 4/36 - Emploi de substances spécifiées comme matériaux actifs, masses actives, liquides actifs
H01M 4/583 - Matériau carboné, p. ex. composés au graphite d'intercalation ou CFx
H01M 10/0525 - Batteries du type "rocking chair" ou "fauteuil à bascule", p. ex. batteries à insertion ou intercalation de lithium dans les deux électrodesBatteries à l'ion lithium
54.
NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A double cold rolled non-oriented electrical steel sheet having a composition including, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.2%≤Manganese≤0.24%, 3.1%≤Silicon≤3.5%, 0.8%≤Aluminum≤1.1%, Phosphorus ≤0.15%, Sulfur ≤0.006%, Nitrogen ≤0.09%, and various optional elements. The remainder composition being iron and unavoidable impurities caused by processing. The microstructure is made of ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less from 30% to 35% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.645 T to 1.660 T.
The invention deals with a hot worked and annealed graphitic steel product which composition comprises in weight percent C : 0.70-0.90% Mn : 0.160- 0.40% % Si ≤ 1.0-3.0% Al :0.001-0.09% P ≤ 0.090% S : 0.040-0.090% N: 0.0040-0.0100% H ≤ 0.0004 % and comprising optionally one or more of the following elements Ti ≤ 0.090% B ≤ 0.006% Cr ≤ 1% ≤ Mo ≤ 0.5% V ≤ 0.2% Nb ≤ 0.1% Ni ≤ 3.0% Co ≤ 3.0% Cu ≤ 3.0% Sn ≤ 0.1% Ce ≤ 0.1% Mg ≤ 0.1% Zr ≤ 0.1% Ca ≤ 0.008% the manganese, sulfur, titanium, boron and nitrogen weight contents being such that %Mn / %S ≥ 4.0 and N - 0.3xTi - 1.3xB ≥ 0 the remainder of the composition being iron and unavoidable impurities resulting from the smelting, said steel having a microstructure comprising 1 to 10% in area fraction of free graphite particles, up to 5% optional cementite, the balance being ferrite.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/60 - Alliages ferreux, p. ex. aciers alliés contenant du plomb, du sélénium, du tellure, de l'antimoine, ou plus de 0,04% en poids de soufre
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C21D 9/22 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour foretsTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour fraisesTraitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour machines-outils coupantes
C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet
C21D 8/00 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique
C21D 6/00 - Traitement thermique des alliages ferreux
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.3mm to 0.8mm and having a composition comprising the following elements, expressed in percentage by weight, 0.0001% ≤ Carbon ≤ 0.007 %, 0.7% ≤ Manganese ≤ 1.2%, 2.6% ≤ Silicon ≤ 3.0%, 0.7% ≤ Aluminum ≤ 1.2 %, Phosphorus ≤ 0.15 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09%, with 4.3% ≤ Si+Al+Mn ≤ 5.5 % and can contain one or more of the following optional elements, Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%, Boron ≤ 0.05%, Lead ≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 50 microns to 300 microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
57.
A TIN FREE NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A tin free non-oriented electrical steel sheet having a thickness from 0.2mm to 0.8mm and having a composition comprising of the following elements 0.0001% ≤ Carbon ≤ 0.009 %,0.05% ≤ Manganese ≤ 0.2%,2.5% ≤ Silicon ≤ 3.3%,0.1% ≤ Aluminum ≤ 0.5 %,0.001% ≤ Titanium ≤ 0.1%, Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09%with 3% ≤ Si+Al+Mn ≤ 4.7%, Niobium ≤ 0.1%,Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%,Tungsten≤ 0.1%,Cobalt ≤ 1%,Arsenic ≤ 0.05%,Calcium ≤ 0.01%,Copper ≤ 1%,Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Antimony ≤ 0.2%the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10microns to 150 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
58.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.4mm to 0.7mm and having a composition comprising of the following elements 0.0001% ≤ Carbon ≤ 0.007 %,0.2% ≤ Manganese ≤ 0.5%, 3% ≤ Silicon ≤ 3.5%, 0.6% ≤ Aluminum ≤ 1.1 %, 0.001% ≤ Titanium ≤ 0.1%, Phosphorus ≤ 0.15 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09% with 4% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements Niobium ≤ 0.1%, Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%, Boron ≤ 0.05%, Lead ≤ 0.2%, Tin ≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non- recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 100 microns to 250 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 30% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
59.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.4mm to 0.7mm and having a composition comprising of the following elements, 0.0001% ≤ Carbon ≤ 0.007 %,0.09% ≤ Manganese ≤ 0.22%, 2.7% ≤ Silicon ≤ 3.1%,0.3% ≤ Aluminum ≤ 0.5 %, Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006%, Nitrogen ≤ 0.09% with 3.2% ≤ Si+Al+Mn ≤ 3.8% and can contain one or more of the following optional elements Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%,Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Tin≤ 0.2%,Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 50 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
60.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.4mm to 0.6mm and having a composition comprising the following elements, expressed in percentage by weight, 0.0001% ≤ Carbon ≤ 0.007 %, 0.2% ≤ Manganese ≤ 0.4%, 1% ≤ Silicon ≤ 1.4%, 0.15% ≤ Aluminum ≤ 0.25 %, 0.1% ≤ Phosphorus ≤ 0.25 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09%, with 0.2% ≤ P+Sn ≤ 0.3 % and can contain one or more of the following optional elements, Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%, Boron ≤ 0.05%, Lead ≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 70 microns to 150 microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz, of less than 35% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
61.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.4mm to 0.7mm and having a composition comprising of the following elements 0.0001% ≤ Carbon ≤ 0.007 %,0.15% ≤ Manganese ≤ 0.3%,3% ≤ Silicon ≤ 3.5%, 0.9% ≤ Aluminum ≤ 1.4 %, 0.001%≤ Nickel ≤ 0.1%, Phosphorus ≤ 0.15 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09%, with 4% ≤ Si+Al+Mn ≤ 5.5%,Titanium ≤ 0.1%, Niobium ≤ 0.1%, Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Boron ≤ 0.05%, Lead ≤ 0.2%, Tin≤ 0.2%, Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 120 microns to 250 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
62.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.4mm to 0.7mm and having a composition comprising of the following elements, 0.0001% ≤ Carbon ≤ 0.007 %,0.09% ≤ Manganese ≤ 0.22%, 2.7% ≤ Silicon ≤ 3.1%,0.3% ≤ Aluminum ≤ 0.5 %, Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006%, Nitrogen ≤ 0.09% with 3.2% ≤ Si+Al+Mn ≤ 3.8% and can contain one or more of the following optional elements Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%,Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Tin≤ 0.2%,Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 50 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
63.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.5 to 1.2 mm and having a composition comprising the following elements, 0.0001% ≤ Carbon ≤ 0.007 %, 0.2% ≤ Manganese ≤ 0.4%,1% ≤ Silicon ≤ 1.4%, 0.12% ≤ Aluminum ≤ 0.25 %,0.1 % ≤ Phosphorus ≤ 0.25 %,0.08% ≤ Tin ≤ 0.2%,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09%,with 0.2% ≤ P+Sn ≤ 0.3%,Niobium ≤ 0.1%,Titanium ≤ 0.1%,Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%,Tungsten≤ 0.1%,Cobalt ≤ 1%,Arsenic ≤ 0.05%,Calcium ≤ 0.01%,Copper ≤ 1%,Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 80 microns to 200microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz, of less than 45% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
64.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.5mm to 1.2mm and having a composition comprising of the following elements 0.0001% ≤ Carbon ≤ 0.007 %, 0.05% ≤ Manganese ≤ 0.3%, 3% ≤ Silicon ≤ 3.5%, 0.8% ≤ Aluminum ≤ 1.2 %, 0.001% ≤ Titanium ≤ 0.1%, Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09%, with 4% ≤ Si+Al+Mn ≤ 5.5%, Niobium ≤ 0.1%, Vanadium ≤ 0.1%,Chromium ≤ 1%, Molybdenum ≤ 0.5%m Tungsten≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%, Boron ≤ 0.05%,Lead ≤ 0.2%, Tin≤ 0.2%, Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 100 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 36% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
65.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.3mm to 0.6mm and having a composition comprising the following elements 0.0001% ≤ Carbon ≤ 0.007 %,0.1% ≤ Manganese ≤ 0.5%,1% ≤ Silicon ≤ 1.6%,0.1% ≤ Aluminum ≤ 0.5%,Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09%,Tin ≤ 0.15%,Niobium ≤ 0.1%,Titanium ≤ 0.1%,Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%,Tungsten≤ 0.1%,Cobalt ≤ 1%,Arsenic ≤ 0.05%,Calcium ≤ 0.01%,Copper ≤ 1%,Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Antimony ≤ 0.2%the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non- recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 90 microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz, of less than 25% when calculated in accordance with Bertotti method. No figure.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/40 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
66.
A TIN FREE NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING TIN FREE NON-ORIENTED ELECTRICAL STEEL THEREOF
A tin free non-oriented electrical steel sheet having a thickness from 0.2mm to 0.4mm and having a composition comprising of the following elements, 0.0001% ≤ Carbon ≤ 0.007 %,0.09% ≤ Manganese ≤ 0.3%,3% ≤ Silicon ≤ 3.5%,0.5% ≤ Aluminum ≤ 1.2 %, Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09% with 3.7% ≤ Si+Al+Mn ≤ 4.7%, Niobium ≤ 0.1%,Titanium ≤ 0.1%,Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%,Tungsten≤ 0.1%,Cobalt ≤ 1%,Arsenic ≤ 0.05%,Calcium ≤ 0.01%,Copper ≤ 1%,Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 60microns to 150 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 15% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
67.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.2mm to 0.4mm and having a composition comprising of the following elements, 0.0001% ≤ Carbon ≤ 0.007 %,0.2% ≤ Manganese ≤ 0.5%,3% ≤ Silicon ≤ 3.6%,0.7% ≤ Aluminum ≤ 0.95 %,0.001%≤ Nickel ≤ 0.1%,Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09% with 4% ≤ Si+Al+Mn ≤ 5.5%, Titanium ≤ 0.1%,Niobium ≤ 0.1%,Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%,Tungsten≤ 0.1%,Cobalt ≤ 1%,Arsenic ≤ 0.05%,Calcium ≤ 0.01%,Copper ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Tin≤ 0.2%, Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 95 microns to 250 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 15% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
68.
WELDING METHOD FOR PRESS HARDENING STEELS HAVING AN ALUMINUM-BASED COATING, ASSOCIATED WELDED BLANK AND HOT STAMPED PART
Method for butt-welding two sub-blanks of steel (10) comprising the steps of: -providing two sub-blanks (10) made of press-hardening steel grades, having a thickness of respectively t1 and t2 expressed in mm, and coated on both sides with an aluminum based metallic coating (2) comprising an intermetallic layer (21) in contact with a substrate (1) and a metallic layer (22) above it. -preparing said two sub-blanks (10) by removing at least said metallic layer (22) of said aluminum-based coating (2) on the top side of said weld edges (11) of each of said sub-blanks (10) to form removal zones (23) and by removing at least said metallic layer (22) of said aluminum-based coating (2) on the bottom side of one weld edge (11) to form another removal zone (23), while leaving the full amount of said aluminum-based coating (2) on the bottom side of the other weld edge (11), -positioning said two sub-blanks (10) side by side along their respective weld edges (11). -laser welding said two sub-blanks (10) using a laser beam (31) emitted by a laser head (30) traveling at a relative speed S_welding, expressed in m/min, and simultaneously adding a filler wire (41) having a diameter D_filler_wire, which is fed out of a filler wire feeder (40) at a speed S_filler_wire, expressed in m/min, to form a melt pool generated by said laser beam (31) and thus manufacture a laser welded blank (6) having a weld seam (5).
B23K 35/02 - Baguettes, électrodes, matériaux ou environnements utilisés pour le brasage, le soudage ou le découpage caractérisés par des propriétés mécaniques, p. ex. par la forme
B23K 26/00 - Travail par rayon laser, p. ex. soudage, découpage ou perçage
B23K 26/242 - Soudure en angle, c.-à-d. soudure de section essentiellement triangulaire joignant deux parties
B23K 26/322 - Assemblage tenant compte des propriétés du matériau concerné faisant intervenir des parties métalliques
The invention relates to a metal powder having a composition comprising the following elements, expressed in content by weight: 9% ≤ Ni ≤ 13%, 17% ≤ Cr ≤ 19%, 0.04% ≤ C ≤ 0.1%, 8 x C ≤ Nb ≤ 1%, Si ≤ 0.75%, P ≤ 0.025%, S ≤ 0.03%, 0.02% ≤ N ≤ 0.2%, With Si/(C+N) <6.0, and optionally containing: Mn ≤ 2%, Cu ≤ 0.75%, Mo ≤ 0.75%, and/or one or more elements chosen among Ti, V, W, Zr, Ce, Y in a cumulated amount of up to 2.0 wt.%, the balance being iron and unavoidable impurities resulting from the elaboration.
B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p. ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p. ex. du débit ou de la direction
B22F 10/36 - Commande ou régulation des opérations des paramètres du faisceau d’énergie
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
70.
WELDING METHOD FOR PRESS HARDENING STEELS HAVING AN ALUMINUM-BASED COATING, ASSOCIATED WELDED BLANK AND HOT STAMPED PART
Method for butt-welding two sub-blanks of steel (10) comprising the steps of: -providing two sub-blanks (10) made of press-hardening steel grades, having a thickness of respectively t1 and t2 expressed in mm, and coated on both sides with an aluminum based metallic coating (2) comprising an intermetallic layer (21) in contact with a substrate (1) and a metallic layer (22) above it. -preparing said two sub-blanks (10) by removing at least said metallic layer (22) of said aluminum-based coating (2) on the top side of said weld edges (11) of each of said sub-blanks (10) to form removal zones (23) and by removing at least said metallic layer (22) of said aluminum-based coating (2) on the bottom side of one weld edge (11) to form another removal zone (23), while leaving the full amount of said aluminum-based coating (2) on the bottom side of the other weld edge (11), -positioning said two sub-blanks (10) side by side along their respective weld edges (11). -laser welding said two sub-blanks (10) using a laser beam (31) emitted by a laser head (30) traveling at a relative speed S_welding, expressed in m/min, and simultaneously adding a filler wire (41) having a diameter D_filler_wire, which is fed out of a filler wire feeder (40) at a speed S_filler_wire, expressed in m/min, to form a melt pool generated by said laser beam (31) and thus manufacture a laser welded blank (6) having a weld seam (5)
B23K 35/02 - Baguettes, électrodes, matériaux ou environnements utilisés pour le brasage, le soudage ou le découpage caractérisés par des propriétés mécaniques, p. ex. par la forme
B23K 26/00 - Travail par rayon laser, p. ex. soudage, découpage ou perçage
B23K 26/242 - Soudure en angle, c.-à-d. soudure de section essentiellement triangulaire joignant deux parties
B23K 26/322 - Assemblage tenant compte des propriétés du matériau concerné faisant intervenir des parties métalliques
A cold rolled and heat treated steel sheet including of the following elements 0.2%≤C≤0.35%; 0.2%≤Mn≤1.2%; 0.1%≤Si≤0.9%; 0%≤Al≤0.1%; 0.2%≤Cr≤0.8%; 0.01%≤Nb≤0.1%; 0.1%≤Ni≤0.9%; 0.1%≤Mo≤0.9% 0.01%≤Ti≤0.1%; 0%≤P≤0.02%; 0%≤S≤0.03%; 0%≤N≤0.09%; 0.0001%≤B≤0.010%; 0%≤V≤0.1%; 0%≤Cu≤2%; 0%≤Ca≤0.005%; 0%≤Ce≤0.1%; 0%≤Mg≤0.05%; 0%≤Zr≤0.05%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel including, by area percentage, at least 75% of tempered martensite, 0% to 10% Fresh Martensite, 3 to 20% of Ferrite and 0 to 5% Bainite.
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.3mm to 0.6mm and having a composition comprising the following elements, expressed in percentage by weight, 0.0001 % ≤ Carbon ≤ 0.007 %, 0.2% ≤ Manganese ≤ 0.5%, 1.6% ≤ Silicon ≤ 2%, 0.2% ≤ Aluminum ≤ 0.5 %, Phosphorus ≤ 0.15 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09% and can contain one or more of the following optional elements, Tin ≤ 0.15%, Niobium ≤ 0.1%, Titanium ≤ 0.1 %, Vanadium ≤ 0.1 %, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten≤ 0.1 %, Cobalt ≤ 1 %, Arsenic ≤ 0.05%, Calcium ≤ 0.01 %, Copper ≤ 1 %, Nickel ≤ 1 %, Boron ≤ 0.05%, Lead ≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 90 microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
73.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.3mm to 0.8mm and having a composition comprising the following elements, expressed in percentage by weight, 0.0001% ≤ Carbon ≤ 0.007 %, 0.1% ≤ Manganese ≤ 0.5%, 0.1% ≤ Silicon ≤ 0.9%, 0.09% ≤ Aluminum ≤ 0.25 %, 0.1% ≤ Phosphorus ≤ 0.25 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09%, with 0.8% ≤ Si+Al+Mn ≤ 1.5 % and can contain one or more of the following optional elements, Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%, Boron ≤ 0.05%, Lead ≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 60 microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz, of less than 45% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
74.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.3mm to 0.6mm and having a composition comprising the following elements, expressed in percentage by weight, 0.0001% ≤ Carbon ≤ 0.007 %, 0.2% ≤ Manganese ≤ 0.5%, 1.6% ≤ Silicon ≤ 2%, 0.2% ≤ Aluminum ≤ 0.5 %, Phosphorus ≤ 0.15 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09% and can contain one or more of the following optional elements, Tin ≤ 0.15%, Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%, Boron ≤ 0.05%, Lead ≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 90 microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
75.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.4mm to 0.7mm and having a composition comprising of the following elements, 0.0001% ≤ Carbon ≤ 0.007 %,0.09% ≤ Manganese ≤ 0.22%, 2.7% ≤ Silicon ≤ 3.1%,0.3% ≤ Aluminum ≤ 0.5 %, Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006%, Nitrogen ≤ 0.09% with 3.2% ≤ Si+Al+Mn ≤ 3.8% and can contain one or more of the following optional elements Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%,Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Tin≤ 0.2%,Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 50 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C22C 38/40 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
76.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.2 to 0.4 mm and having a composition comprising the following elements, 0.0001% ≤ Carbon ≤ 0.007 %, 0.2% ≤ Manganese ≤ 0.4%, 1% ≤ Silicon ≤ 1.4%, 0.1% ≤ Aluminum ≤ 0.3 %, 0.1 % ≤ Phosphorus ≤ 0.25 %, 0.08% ≤ Tin ≤ 0.2%, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09%, with 0.2% ≤ P+Sn ≤ 0.3%, Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten ≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%, Boron ≤ 0.05%, Lead ≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 80 microns to 200 microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
77.
A TIN FREE NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
The invention deals with a non-oriented electrical steel sheet having a thickness from 0.4mm to 0.7mm and having a composition comprising of the following elements, 0.0001% ≤ Carbon ≤ 0.007 %,0.09% ≤ Manganese ≤ 0.22%, 2.7% ≤ Silicon ≤ 3.1%,0.3% ≤ Aluminum ≤ 0.5 %, Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006%, Nitrogen ≤ 0.09% with 3.2% ≤ Si+Al+Mn ≤ 3.8% and can contain one or more of the following optional elements Niobium ≤ 0.1%, Titanium ≤ 0.1%, Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%,Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Tin≤ 0.2%,Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 10 microns to 50 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 25% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
78.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.2mm to 0.4mm and having a composition comprising of the following elements 0.0001 % ≤ Carbon ≤ 0.007 %,0.05% ≤ Manganese ≤ 0.2%, 2.5% ≤ Silicon ≤ 3.1 %, 0.2% ≤ Aluminum ≤ 0.6 %, Phosphorus ≤ 0.15 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09% with 3.2% ≤ Si+AI+Mn ≤ 3.8%, Niobium ≤ 0.1 %, Titanium ≤ 0.1 %, Vanadium ≤ 0.1 %, Chromium ≤ 1%, Molybdenum ≤ 0.5%,Tungsten≤ 0.1 %, Cobalt ≤ 1 %, Arsenic ≤ 0.05%, Calcium ≤ 0.01 %, Copper ≤ 1 %, Nickel ≤ 1 %, Boron ≤ 0.05%, Lead ≤ 0.2%,Tin≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 30 microns to 80 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 15% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
79.
A TIN FREE NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING TIN FREE NON-ORIENTED ELECTRICAL STEEL THEREOF
A tin free non-oriented electrical steel sheet having a thickness from 0.5mm to 1.2mm and having a composition comprising of the following elements, 0.0001% ≤ Carbon ≤ 0.007 %,0.09% ≤ Manganese ≤ 0.3%,3% ≤ Silicon ≤ 3.5%,0.4% ≤ Aluminum ≤ 1.2 %, Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09% with 3.7% ≤ Si+Al+Mn ≤ 4.7%,Niobium ≤ 0.1%,Titanium ≤ 0.1%,Vanadium ≤ 0.1%, Chromium ≤ 1%,Molybdenum ≤ 0.5%,Tungsten≤ 0.1%,Cobalt ≤ 1%,Arsenic ≤ 0.05%,Calcium ≤ 0.01%,Copper ≤ 1%,Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%, Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 90microns to 200 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 35% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
80.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.5mm to 1.2mm and having a composition comprising the following elements 0.0001% ≤ Carbon ≤ 0.007 %,0.1% ≤ Manganese ≤ 0.6%,0.9% ≤ Silicon ≤ 1.7%,0.01% ≤ Aluminum ≤ 0.1 %,Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09%,Tin ≤ 0.15%,Niobium ≤ 0.1%,Titanium ≤ 0.1%,Vanadium ≤ 0.1%,Chromium ≤ 1%,Molybdenum ≤ 0.5%,Tungsten≤ 0.1%,Cobalt ≤ 1%,Arsenic ≤ 0.05%,Calcium ≤ 0.01%,Copper ≤ 1%,Nickel ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 5 microns to 50 microns and having a percentage of eddy current losses in total iron losses measured at 1.5T and 400Hz measured according to 60404-2 standard of less than 35% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/40 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel
C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
81.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.4mm to 0.7mm and having a composition comprising of the following elements 0.0001% ≤ Carbon ≤ 0.007 %,0.2% ≤ Manganese ≤ 0.5%, 3% ≤ Silicon ≤ 3.5%, 0.6% ≤ Aluminum ≤ 1.1 %, 0.001% ≤ Titanium ≤ 0.1%, Phosphorus ≤ 0.15 %, Sulfur ≤ 0.006 %, Nitrogen ≤ 0.09% with 4% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements Niobium ≤ 0.1%, Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%, Tungsten≤ 0.1%, Cobalt ≤ 1%, Arsenic ≤ 0.05%, Calcium ≤ 0.01%, Copper ≤ 1%, Nickel ≤ 1%, Boron ≤ 0.05%, Lead ≤ 0.2%, Tin≤ 0.2%, Antimony ≤ 0.2%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non- recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 100 microns to 250 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 30% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
82.
A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF
A non-oriented electrical steel sheet having a thickness from 0.2mm to 0.4mm and having a composition comprising of the following elements, 0.0001% ≤ Carbon ≤ 0.007 %,0.2% ≤ Manganese ≤ 0.5%,3% ≤ Silicon ≤ 3.6%,0.5% ≤ Aluminum ≤ 0.96 %,0.001%≤ Nickel ≤ 0.1%,Phosphorus ≤ 0.15 %,Sulfur ≤ 0.006 %,Nitrogen ≤ 0.09% with 4% ≤ Si+Al+Mn ≤ 5.5%, Titanium ≤ 0.1%,Niobium ≤ 0.1%,Vanadium ≤ 0.1%, Chromium ≤ 1%, Molybdenum ≤ 0.5%,Tungsten≤ 0.1%,Cobalt ≤ 1%,Arsenic ≤ 0.05%,Calcium ≤ 0.01%,Copper ≤ 1%,Boron ≤ 0.05%,Lead ≤ 0.2%,Tin≤ 0.2%, Antimony ≤ 0.2%,the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 70% to 100% recrystallized microstructure, 0% to 30% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 95 microns to 250 microns and having a percentage of eddy current losses in total iron losses, measured at 1.5 T and 400 Hz according to standard 60404-2, of less than 15% when calculated in accordance with Bertotti method.
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 8/12 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication d'objets à propriétés électromagnétiques particulières
C21D 6/00 - Traitement thermique des alliages ferreux
83.
HIGH STRENGTH STEEL FOR FORGING AND A HIGH STRENGTH FORGED MECHANICAL PART MANUFACTURED THEREOF
A high strength steel for forging mechanical parts comprising of the following elements 0.1 % ≤ C ≤ 0.3 %, 3 % ≤ Mn ≤ 9 %, 0.8% ≤ Si ≤2.5 %, 0.001 % ≤ Al ≤ 2.5 %, 0% ≤ S ≤ 0.03%, 0% ≤ P ≤ 0.03%, 0% ≤ N ≤ 0.025%, Ti ≤ 0.1%, 0.0001% ≤ B ≤ 0.01%, Cr ≤ 0.5 %, Nb ≤ 0.1%, V≤ 0.15%, Ni ≤ 1%, 0% ≤ Cu ≤ 1%, the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel comprising, by area percentage, at least 50% of Ferrite, 20% to 50% of Residual Austenite, with an optional presence of tempered martensite from 0% to 5%.
The invention concerns a method for determining a temperature of a steel wire (12) during its cooling by air on a conveyor having a central axis (18) and two lateral edges (20) extending in a conveying direction (X), the steel wire (12) being wound in successive loops (22) comprising each at least one central portion (24) near the central axis (18) and at least one edge portion (26) near a respective lateral edge (20), comprising: - estimating a wire temperature gradient with respect to a radial position within the wire, as a function of a total heat transfer coefficient depending on a convective heat transfer coefficient associated to air convection and on a radiative heat transfer coefficient associated to radiation; and for at least one central portion (24), the radiative heat transfer coefficient being calculated according to a predefined center effective emissivity; - computing the temperature of the steel wire (12) according to the wire temperature gradient; for at least one edge portion (26), the radiative heat transfer coefficient is calculated according to an edge effective emissivity distinct and independent from the center effective emissivity.
C21D 8/06 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de barres ou de fils
C21D 9/573 - Fours continus pour bandes ou fils métalliques avec refroidissement
C21D 11/00 - Commande ou régulation du processus lors de traitements thermiques
The invention relates to a metal powder having a composition comprising the following elements, expressed in content by weight: 9% ≤ Ni ≤ 13%, 17% ≤ Cr ≤ 19%, 0.04% ≤ C ≤ 0.1%, 8 x C ≤ Nb ≤ 1%, Si ≤ 0.75%, P ≤ 0.025%, S ≤ 0.03%, 0.02% ≤ N ≤ 0.2%, With Si/(C+N) <6.0, and optionally containing: Mn ≤ 2%, Cu ≤ 0.75%, Mo ≤ 0.75%, and/or one or more elements chosen among Ti, V, W, Zr, Ce, Y in a cumulated amount of up to 2.0 wt.%, the balance being iron and unavoidable impurities resulting from the elaboration.
B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p. ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p. ex. du débit ou de la direction
B22F 10/36 - Commande ou régulation des opérations des paramètres du faisceau d’énergie
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
86.
Method for producing a press-hardened laser welded steel part and press-hardened laser welded steel part
A method for producing a part includes providing a first and a second precoated sheet (1,2), butt welding the first and second precoated sheets (1) to obtain a blank (15), and heating the blank (15) to a heat treatment temperature at least 10° C. lower than the full austenitization temperature of the weld joint (22) and at least 15° C. higher than a minimum temperature Tmin:
A method for producing a part includes providing a first and a second precoated sheet (1,2), butt welding the first and second precoated sheets (1) to obtain a blank (15), and heating the blank (15) to a heat treatment temperature at least 10° C. lower than the full austenitization temperature of the weld joint (22) and at least 15° C. higher than a minimum temperature Tmin:
T
min
(
°
C
.
)
=
A
C
3
(
W
J
)
-
α
IC
max
1
0
0
(
A
c
3
(
W
J
)
-
6
7
3
-
40
×
Al
)
,
where
Ac3(WJ) is the full austenitization temperature of the weld joint (22)
A method for producing a part includes providing a first and a second precoated sheet (1,2), butt welding the first and second precoated sheets (1) to obtain a blank (15), and heating the blank (15) to a heat treatment temperature at least 10° C. lower than the full austenitization temperature of the weld joint (22) and at least 15° C. higher than a minimum temperature Tmin:
T
min
(
°
C
.
)
=
A
C
3
(
W
J
)
-
α
IC
max
1
0
0
(
A
c
3
(
W
J
)
-
6
7
3
-
40
×
Al
)
,
where
Ac3(WJ) is the full austenitization temperature of the weld joint (22)
α
IC
max
=
(
1
-
(
1
+
ρ
)
(
max
(
1
;
ρ
)
T
s
2
-
3
5
0
)
(
1
-
β
)
(
ρ
T
s
2
+
T
s
1
)
+
β
(
1
+
ρ
)
(
3
1
3
0
C
F
W
+
7
5
0
)
-
3
5
0
×
(
1
+
ρ
)
)
×
1
0
0
,
where
Ts1 and Ts2 are the ultimate tensile strengths of the strongest and the weakest substrate after press-hardening
CFW is the carbon content of the filler material
β is the proportion of filler material
ρ is the ratio between the thicknesses of the weakest and the strongest substrate The method also includes holding the blank (15) at the heat treatment temperature for a time between 2 and 10 minutes; and press-forming the blank (15) into a part and cooling.
B23K 26/32 - Assemblage tenant compte des propriétés du matériau concerné
B23K 26/323 - Assemblage tenant compte des propriétés du matériau concerné faisant intervenir des parties faites de matériaux métalliques dissemblables
B23K 35/30 - Emploi de matériaux spécifiés pour le soudage ou le brasage dont le principal constituant fond à moins de 1550 C
B23K 101/00 - Objets fabriqués par brasage, soudage ou découpage
B62B 3/02 - Voitures à bras ayant plus d'un essieu portant les roues servant au déplacementDispositifs de direction à cet effetAppareillage à cet effet comportant des parties réglables, rabattables, attachables, détachables ou transformables
B62B 3/10 - Voitures à bras ayant plus d'un essieu portant les roues servant au déplacementDispositifs de direction à cet effetAppareillage à cet effet caractérisées par des supports spécialement adaptés à des objets de forme définie
B62B 3/12 - Voitures à bras ayant plus d'un essieu portant les roues servant au déplacementDispositifs de direction à cet effetAppareillage à cet effet caractérisées par une structure à trois roues
C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
C21D 1/673 - Dispositifs pour trempe pour la trempe en coquille
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 9/50 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour joints de soudure
C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
C22C 38/54 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du bore
C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
87.
METHOD FOR PRODUCING LIQUID STEEL IN AN ELECTRIC ARC FURNACE WITH CARBURIZATION AND OXYGEN INJECTION
The front-end assembly (1) of a vehicle front body structure (8) for a vehicle comprises at least a front rail (2), a shotgun (4) and an apron (6), said front end assembly comprising: - a main formed metal sheet (34), shaped to comprise an apron portion (40), a front rail portion (42) and a shotgun portion (44), - a first additional formed metal sheet (36) attached to the front rail portion (42) of the main formed metal sheet (34) to form the front rail (2), and - a second additional formed metal sheet (38) attached to the shotgun portion (44) of the main formed metal sheet (34) to form the shotgun (4).
A method for producing a welded steel blank (1) includes providing two precoated sheets (2), each comprising a steel substrate (3) having a precoating (5) on each of its two main faces (4), each sheet (2) comprising, on each main face (4), at a weld edge (14), a removal zone (18) in which the precoating (5) is removed over a removal fraction; and butt welding the sheets (2) using a filler wire (20) so as to create a weld joint (22) having an aluminum content AlWJ comprised between 0.1 wt. % and 1.2 wt. %. The composition of the wire (20) and the proportion of wire (20) added is such that the weld joint (22) has: (a) a quenching factor FTWJ such that FTWJ−0.96FTBM≥0, (b) a nickel content NiWJ≤14−3.4×AlWJ and a chromium content CrWJ≤5−2×AlWJ, where AlWJ is the aluminum content of the weld joint (22).
The invention relates to a method for filtering a coarse particle slurry to obtain a filtered coarse cake, the coarse particle slurry having a particle size distribution wherein at least 90% of the particles of the coarse particle slurry have a size larger than 25 pm. The method is carried out by a filter device (14) comprising a filter pan (26), and comprises, for each filter cell (48) of the filter pan (26), a treatment cycle comprising: - discharging the coarse particle slurry on top of the filter cell (48); - applying a pressure difference between an inner volume and the exterior of the filter cell (48), so that a liquid of the coarse particle slurry is led towards the inner volume of the filter cell (48) and so that the filtered coarse cake is obtained on top of the medium filter.
B01D 33/19 - Filtres avec éléments filtrants mobiles au cours de l'opération de filtration à surfaces filtrantes rotatives planes à tables de filtration rotatives la surface de la table étant divisée en secteurs ou en cellules qui basculent successivement, p. ex. pour l'évacuation du gâteau filtrant
C22B 3/00 - Extraction de composés métalliques par voie humide à partir de minerais ou de concentrés
92.
METHOD OF PRODUCING STEEL WITH LOW NITROGEN CONTENT USING AN EAF
Method of producing steel using an Electrical Arc Furnace (EAF), the method comprising: (a) melting a metal load (L) in the EAF and generating liquid steel (LS); (c) tapping the liquid steel (LS) from the EAF; and (d) performing secondary metallurgy on the liquid steel (LS) in at least one secondary metallurgy reactor to adjust the chemical composition of the liquid steel (LS), wherein the method comprises adding a first slag compound (SC1) with nitrogen affinity in the liquid steel (LS) during tapping of the liquid steel (LS) from the EAF and creating a ladle slag (S2).
Front-end assembly of a vehicle front body structure The front-end assembly (1) of a vehicle front body structure (8) for a vehicle comprises at least a front rail (2), a shotgun (4) and an apron (6), said front end assembly comprising: - a main formed metal sheet (34), shaped to comprise an apron portion (40), a front rail portion (42) and a shotgun portion (44), - a first additional formed metal sheet (36) attached to the front rail portion (42) of the main formed metal sheet (34) to form the front rail (2), and - a second additional formed metal sheet (38) attached to the shotgun portion (44) of the main formed metal sheet (34) to form the shotgun (4).
Method of producing steel with low nitrogen content using an EAF Method of producing steel using an Electrical Arc Furnace (EAF), the method comprising: (a) melting a metal load (L) in the EAF and generating liquid steel (LS); (c) tapping the liquid steel (LS) from the EAF; and (d) performing secondary metallurgy on the liquid steel (LS) in at least one secondary metallurgy reactor to adjust the chemical composition of the liquid steel (LS), wherein the method comprises adding a first slag compound (SC1) with nitrogen affinity in the liquid steel (LS) during tapping of the liquid steel (LS) from the EAF and creating a ladle slag (S2).
The invention relates to a method for heating a rolled steel strip that comprises the following steps: - continuously driving a rolled steel strip inside a furnace, - introducing an entry gas flow into a device for heating gas that comprises: • a pipe, allowing gas to flow inside of it, • an insert located inside said pipe, being electrically conductive, • an inductor located close to said pipe, - feeding energy into said insert using said inductor, so that said energy fed into the insert is transferred to the gas inside said device for heating gas, to heat said gas to a temperature from 500°C to 1500°C, - circulating said heated gas into a radiant tube located inside the furnace, so that said heated gas transfers heat to said radiant tube, making said radiant tube release the transferred heat inside the furnace to heat said rolled steel strip.
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 9/56 - Fours continus pour bandes ou fils métalliques
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27B 9/30 - Parties constitutives, accessoires ou équipement spécialement adaptés à ces types de fours
F27B 9/36 - Aménagement des dispositifs de chauffage
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
C21D 9/60 - Fours continus pour bandes ou fils métalliques avec chauffage par induction
H05B 6/10 - Appareils de chauffage par induction, autres que des fours, pour des applications spécifiques
98.
METHOD FOR HEATING A ROLLED STEEL STRIP AND INSTALLATION THEREOF
The invention relates to a method for heating a rolled steel strip that comprises the following steps: - continuously feeding a rolled steel strip to be heated inside a furnace, - introducing an entry gas flow into at least one device for heating gas, said device for heating gas being connected to said furnace and comprising: • a pipe allowing gas to flow inside of it, • an insert located inside said pipe, said insert being electrically conductive, • an inductor located in the vicinity of said pipe, - feeding energy into said insert using said inductor of said device for heating gas so that said energy fed into the insert is transferred to the gas introduced into said device for heating gas, to heat said gas to a temperature from 500°C to 1500°C, - releasing said heated gas into the furnace so that said rolled steel strip is heated.
C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
C21D 9/56 - Fours continus pour bandes ou fils métalliques
C21D 9/60 - Fours continus pour bandes ou fils métalliques avec chauffage par induction
F27B 9/28 - Fours dans lesquels la charge est déplacée mécaniquement, p. ex. du type tunnel Fours similaires dans lesquels la charge se déplace par gravité pour traiter des longueurs ininterrompues du matériau travaillé
F27B 9/30 - Parties constitutives, accessoires ou équipement spécialement adaptés à ces types de fours
F27B 9/36 - Aménagement des dispositifs de chauffage
F27D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
H05B 6/10 - Appareils de chauffage par induction, autres que des fours, pour des applications spécifiques
99.
ALUMINIUM-BASED COATING FOR PRESS-HARDENED STEEL PART AND METHOD TO PRODUCE THE SAME
A press hardened coated steel part consisting of: a hardened steel substrate (1) for hot stamping comprising, a coating layer having a thickness from 25 to 55 µm and comprising successively: an interdiffusion layer 21 in contact with the steel substrate and having a thickness of from 3 to 45 µm, said interdiffusion layer comprising more than 60 wt. % Fe, Si from 0.1 to 11.0 wt. %, Cu from 150 to 3000 wt. ppm, unavoidable impurities up to 1.0 wt.%, the remainder being Al, an alloyed layer (22) comprising Al, Fe, Si, Cu, wherein said alloyed coating layer consists of a binary phase (221) and a ternary phase (222), wherein said binary phase comprises from 35 to 60 wt. % Fe, from 0.1 to 5.0 wt. % Si, unavoidable impurities up to 1.0 wt. %, at least 190 wt. ppm of Cu, the balance being aluminium, and wherein said ternary phase comprises from 20 to 50 wt. % Al, from 6.0 to 20.0 weight % Si, unavoidable impurities up to 1.0 wt. %, at least 100 ppm of Cu, the balance being Fe, and wherein, in the alloyed layer, Cu content in the binary phase is at least 90 ppm more than in the ternary phase.
A press hardened coated steel part consisting of: a hardened steel substrate (1) for hot stamping comprising, a coating layer having a thickness from 25 to 55 µm and comprising successively: an interdiffusion layer 21 in contact with the steel substrate and having a thickness of from 3 to 45 µm, said interdiffusion layer comprising more than 60 wt. % Fe, Si from 0.1 to 11.0 wt. %, Cu from 150 to 3000 wt. ppm, unavoidable impurities up to 1.0 wt.%, the remainder being Al, an alloyed layer (22) comprising Al, Fe, Si, Cu, wherein said alloyed coating layer consists of a binary phase (221) and a ternary phase (222), wherein said binary phase comprises from 35 to 60 wt. % Fe, from 0.1 to 5.0 wt. % Si, unavoidable impurities up to 1.0 wt. %, at least 190 wt. ppm of Cu, the balance being aluminium, and wherein said ternary phase comprises from 20 to 50 wt. % Al, from 6.0 to 20.0 weight % Si, unavoidable impurities up to 1.0 wt. %, at least 100 ppm of Cu, the balance being Fe, and wherein, in the alloyed layer, Cu content in the binary phase is at least 90 ppm more than in the ternary phase.