Abrégé

The present disclosure relates to a mixer device having a housing including at least first and second adjacent mixing cells (2, 3), each cell (2, 3) including a fluid inlet opening (21, 31) and a fluid outlet opening (22, 32), the inlet opening being offset from the outlet opening so that the axis of the inlet opening is parallel to the axis of the outlet opening, the outlet opening of the first cell being connected to the inlet opening of the second cell via a connecting channel.

Classes IPC  ?

• B01F 25/422 - Mélangeurs statiques dans lesquels le mélange est affecté par le déplacement conjoint des composants dans des directions différentes, p. ex. dans des tubes munis de chicanes ou d'obstructions en déplaçant les composants sur une trajectoire convolutée ou labyrinthique entre des plaques empilées, p. ex. des plaques rainurées ou perforées
• B01F 25/421 - Mélangeurs statiques dans lesquels le mélange est affecté par le déplacement conjoint des composants dans des directions différentes, p. ex. dans des tubes munis de chicanes ou d'obstructions en déplaçant les composants sur une trajectoire convolutée ou labyrinthique
• B01F 25/431 - Tubes de mélange droits avec des chicanes ou des obstructions qui ne provoquent pas de chute de pression importanteChicanes à cet effet
• B01F 25/432 - Tubes de mélange, p. ex. dans lesquels la matière est déplacée dans une direction radiale ou partiellement inversée avec des moyens pour diviser l’écoulement de matière en écoulements secondaires séparés et pour repositionner et recombiner ces écoulements secondairesMélange croisé, p. ex. en amenant la couche extérieure de la matière plus près de l'axe du tube ou vice-versa
• B01F 25/452 - Mélangeurs dans lesquels les composants du mélange sont pressés ensemble au travers d’orifices ou d’espaces interstitiels, p. ex. entre des perles caractérisés par des éléments pourvus d'orifices ou d'espaces interstitiels
• B01F 35/00 - Accessoires pour mélangeursOpérations auxiliaires ou dispositifs auxiliairesParties ou détails d'application générale

Abrégé

The invention relates to a flux-cored wire (1) intended to be introduced into a bath of molten metal to perform a metallurgical treatment, the flux-cored wire including a core (2) extending locally along a longitudinal axis (L), and an outer casing (4) extending longitudinally around the core, the core including: - an extruded bar (8) predominantly comprising calcium, - an intermediate layer (10) extending longitudinally between the extruded bar and the outer casing, the intermediate layer including a powder comprising one or more of: a metal, a mixture of metals, a metal oxide, a mixture of metal oxides. The powder contains at least 10% by weight of lime aluminate, the lime aluminate containing at least the dodecacalcium hepta-aluminate phase.

Classes IPC  ?

• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes
• C21C 7/06 - Élimination des impuretés par addition d'agent traitant de l'oxygène, p. ex. calmer

Produits et services

Mineral-based chemical products; ferro-alloy-based chemical products; metal-based chemical products; all the aforesaid goods being for the treatment of liquid metals.

Produits et services

Alloys of metal.

Produits et services

Alloys of metal.

Abrégé

Cored wire (1; 100) intended to be introduced into a bath of molten metal to carry out a metallurgical treatment, the cored wire comprising: a filling (2) extending locally along a longitudinal axis (L), the filling containing at least one active substance for treating the molten metal; and an external wrapper (4) longitudinally around the filling; characterized in that the filling comprises: an extruded rod (8) extending longitudinally and containing the active substance; and an intermediate layer (10) extending longitudinally between the extruded rod and the outer wrapper and containing a powder containing one or more of the following: a metal, a mixture of metals, a metal oxide, a mixture of metal oxides. Corresponding method.

Classes IPC  ?

• C21C 1/10 - Fabrication des fontes à graphite sphéroïdal
• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes

Abrégé

A cored wire for introducing additive into a bath of liquid steel, of the type comprising a metal sheath surrounding said additive, characterized in that said additive predominantly comprises calcium silicate. A process for manufacturing a resulfurized steel, characterized in that it comprises a step of introducing, into the bath of liquid steel, such a cored wire.

Classes IPC  ?

• C21B 3/02 - Utilisation d'additifs, p. ex. des agents fluants
• C21C 7/04 - Élimination des impuretés par addition d'agent traitant
• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes
• C21B 5/02 - Fabrication de fontes brutes, p. ex. par utilisation d'additifs, p. ex. des oxydes d'autres métaux
• C21B 7/06 - Garnissage (fourrure)

Abrégé

Powder which is for a flux-cored wire intended to become alloyed with a molten metal bath and which is formed by particles composed with at least 95% of sulphur, characterised in that its granulometric population is defined by: −1 μm≦d10≦340 μm; −200 μm d50≦2000 μm; −500 μm d90≦2900 μm. Sulphur-based flux-cored wire, characterised in that it contains the preceding powder, and in that the compaction rate of the powder within the wire is greater than or equal to 85%. Method for producing a sulphur-based flux-cored wire for alloying with molten metal baths.

Classes IPC  ?

• B23K 35/22 - Baguettes, électrodes, matériaux ou environnements utilisés pour le brasage, le soudage ou le découpage caractérisés par la composition ou la nature du matériau
• B22F 3/02 - Compactage seul

Abrégé

The invention relates to a powder for a cored wire for alloying a liquid metal bath, made of particles consisting of at least 95% of sulfur, characterized in that the granulometric population is defined by: 1 μm ≤ d10 ≤ 340 μm; 200 μm ≤ d50 ≤ 2000 μm; and 500 μm ≤ d90 ≤ 2900 μm. The invention also relates to a cored wire, characterized in that it contains the above-mentioned powder and in that the compaction rate of said powder inside the wire is greater than or equal to 85%. The invention further relates to a method for manufacturing a wire cored with sulfur for alloying liquid metal baths.

Classes IPC  ?

• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes

Produits et services

Machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); machines and equipment for machines for wire injection. Maintenance, servicing and repair of machine tools, motors and engines (except for land vehicles), machine coupling and transmission components (except for land vehicles); maintenance, servicing and repair of machines and equipment for machines for wire injection.

Produits et services

Machine tools for the steelmaking industry; machine tools for metallurgical processes; motors and engines except for land vehicles; machine coupling and transmission components except for land vehicles; machines and equipment for machines for wire injection; machine tools for molten metal treatment, machine tools for addition of chemical elements into molten metal Maintenance, servicing and repair of machine tools for steelmaking and for metallurgical processes; maintenance, servicing and repair of motors and engines except those for land vehicles; maintenance and repair of machine coupling and transmission components, except for land vehicles; maintenance, servicing and repair of machines and equipment for machines for wire injection

Produits et services

Chemicals used in industry; tempering and soldering preparations; chemical compositions for the treatment of metallic baths; finishing preparations for use in the manufacture of steel; chemical preparations for facilitating the alloying of metals; galvanizing baths; alkaline-earth metals; antimony; nitrogen; bismuth; calcium carbide; calcium salts; carbon; lanthanum; metalloids; salts from rare earth metals; metal earths; selenium; silicon; sulphur; tellurium; yttrium; boron; brazing preparations; brazing fluxes; fluxes for use in a foundry; galvanizing preparations. Common metals, unwrought or semi-wrought, and their alloys; cables, tubes non-electric metal cables and wires; cables, wires and metal pipes and tubes with a filling; metal tubes and pipes; ores; rolled and cast construction materials; metal building materials; steel; aluminum; iron, unwrought or semi-wrought; lead, unwrought or semi-wrought; chromium; manganese; niobium; molybdenum; titanium; wolfram; vanadium.

Abrégé

Supporting framework for holding a coil (1) of solid or filled wire (3, 4) for adding substances to a bath of liquid metal, comprising uprights (7) hugging said coil (1) and the internal faces (9) of which come into contact with the outermost layer (10) of turns of the wire of which said coil (1) is formed. Said internal faces (9) of said uprights (7) have, at least over a portion of their length, means that tend to intensify the contact between these uprights (7) and the wire by increasing the adhesion between all or some of the turns (3, 4) of the last layer of turns (10) of said wire and the uprights (7) and/or holding all or some of the turns (3, 4) of the last layer of turns (10) of said wire in housings formed on said uprights (7).

Classes IPC  ?

• B65H 49/08 - Dispositifs supportant les paquets pour un seul paquet en action enfermant le paquet
• B65D 85/04 - Réceptacles, éléments d'emballage ou paquets spécialement adaptés à des objets ou à des matériaux particuliers pour des objets de forme annulaire pour bobines de fil métallique, cordes ou tuyaux souples
• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes

Produits et services

[Chemicals used in industry; tempering and soldering preparations, namely, chemicals for tempering and soldering; chemical compositions for the treatment of metallic baths; finishing preparations in the nature of tempering chemicals for use in the manufacture of steel; chemical preparations for facilitating the alloying of metals; galvanizing baths; alkaline-earth metals; antimony; nitrogen; bismuth; calcium carbide; calcium salts; carbon and graphite powder for industrial purposes; lanthanum; metalloids, namely, silicon, boron, tellurium; salts from rare earth metals; metal earths; selenium; silicon; sulphur; tellurium; yttrium; boron; brazing chemicals; brazing fluxes; fluxes for use in a foundry; chemical galvanizing preparations] Common metals, unwrought or semi-wrought, and their alloys; Non-electric cables of metal; metal tubes; non-electric metal cables and wires; non-electric metal cables, wires, pipes, and tubes with a filling; metal tubes and pipes; iron ores; rolled and cast construction materials, namely, iron and steel pipes and bars; metal building materials, namely, steel pipes and bars; steel; aluminum; iron, unwrought or semi-wrought; lead, unwrought or semi-wrought; chromium; manganese metal and ferro-manganese; ferro-niobium; molybdenum; titanium; wolfram, namely, tungsten metal and ferro-tungsten; ferro-vanadium

Produits et services

Chemical products for use in industry; tempering and soldering preparations; chemical compositions for the treatment of metal baths; finishing preparations for use in the manufacture of steel; chemical preparations for facilitating the alloying of metals; galvanizing baths; alkaline-earth metals; antimony; nitrogen; bismuth; calcium carbide; calcium salts; carbon; lanthanum; metalloids; salts from rare earth metals; metal earths; selenium; silicon; sulphur; tellurium; yttrium; boron; brazing preparations; Brazing fluxes; melt for foundries; galvanizing preparations. Raw and semi-processed common metals and their alloys; non-electric cables, pipes and wires of metal; lined cables, wires and pipes of metal; Pipes and tubes of metal; ores; rolled and cast metallic building materials; metal building materials; steel; aluminium; iron, unwrought or semi-wrought; lead, unwrought or semi-wrought; chromium; manganese; niobium; molybdenum; titanium; tungsten; vanadium.

Produits et services

Machine tools; motors and engines (except for land vehicles); machine coupling and transmission components (except for land vehicles); machines and machine equipment for wire injection. Maintenance and repair of machine tools, of motors and engines (except for land vehicles), of machine coupling and transmission components (except for land vehicles); maintenance and repair of machines and machine equipment for wire injection.

Abrégé

A method for introducing a cored wire into a bath of molten metal includes extracting the cored wire from a reel, and making it run into the molten metal bath, one part of the path traveled by the cored wire being formed in a guide tube with a distal end at a defined height above the metal bath's surface. The cored wire is driven and straightened under conditions practically not altering its substantially circular cross section and allowing it to be vertically introduced and penetrate into the depth of the bath. Elements for driving the cored wire from a reel, a guide tube for guiding the cored wire, and elements for straightening the cored wire are placed in front of its entry into the guide tube, the straightening elements giving the cored wire a straight direction without altering its circular cross section.

Classes IPC  ?

• C22B 9/10 - Procédés généraux d'affinage ou de refusion des métauxAppareils pour la refusion des métaux sous laitier électroconducteur ou à l'arc avec des agents d'affinage ou fondantsEmploi de substances pour ces procédés

Abrégé

The invention relates to a flux-cored wire for charging a metallic bath into a state of fusion, comprising a metal sheath and powder filling and characterized in that the filling is a mixture of powders of molybdenum trioxide and moreover at least one reducing component, the molybdenum trioxide being predominant, and in that the proportions and grades of the powder mixture are predetermined so as to obtain complete reduction of the molybdenum trioxide in the metal sheath when the temperature increases due to insertion of the flux-cored wire into the bath. The invention also relates to a method for producing molybdenum-rich steel by means of said flux-cored wire.

Classes IPC  ?

• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes
• B23K 35/368 - Emploi de compositions non métalliques spécifiées pour fil fourré, soit seules, soit liées à l'emploi de matériaux spécifiés pour le brasage ou le soudage

Abrégé

The invention relates to a cored filler wire that includes an additive containing calcium silicate CaO.SiO2, adapted for treating so-called resulphurized special steel. The invention also relates to a method for making resulphurized steel using the above cored filler wire. The method of the invention is particularly adapted for treating solid inclusions present in aluminium-containing steel baths. The method of the invention can be used for preventing desulphurisation before the treating of the solid inclusions.

Classes IPC  ?

• C21C 7/04 - Élimination des impuretés par addition d'agent traitant
• C21C 7/06 - Élimination des impuretés par addition d'agent traitant de l'oxygène, p. ex. calmer
• C21C 7/064 - DéphosphorationDésulfuration

Abrégé

The present invention relates to an additive in the form of flux-cored wire for treating baths of liquid steel with a view to obtaining steels having a high lead content. The additive comprising metallic lead and/or one or more lead alloys according to the invention for treating baths of liquid steel, and is in the form of flex-cored wire composed of a metal sheath and a finely divided filling material, the latter being composed of a powder of metallic lead and/or of lead alloy and of a powder containing a material capable of releasing a gas, which is inert with respect to the liquid steel, at the temperature of the liquid steel bath. Characteristically, said powder of metallic lead and/or of lead alloy comprises a particle size fraction GR between 200 &mgr;m and 500 &mgr;m and said particle size fraction GR has the following characteristics: - through a 200 &mgr;m sieve: GR < 5%; - through a 300 &mgr;m sieve: 90% ³ GR ³ 10%; - through a 400 &mgr;m sieve: 40% 絛 GR < 100%; - through a 500 &mgr;m sieve: 100% ³ GR ³ 90%.

Classes IPC  ?

• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes

Abrégé

The method for introducing a cored wire (2) into a bath (3) of molten metal consists in extracting the cored wire from a reel (9), especially from the core of the reel and in making it run into the molten metal bath (3), one part of the path travelled by the cored wire being formed in a guide tube (13), the distal end (32) of which is at a defined height (H) above the surface (PP') of the metal bath (3). The cored wire (2) is driven and subjected to a straightening operation under conditions practically not altering its substantially circular cross section and allowing it to be introduced and penetrate into the depth of the bath in a vertical direction. The installation (1) includes means (12) for driving said cored wire from a reel (9), in which the wire is extracted from the core of the reel, a guide tube (13) for guiding the cored wire (2), the distal end (32) of the tube being at a defined height (H) above the surface of the bath (3) and having a vertical direction, and means (12) for straightening the cored wire (2) that are placed in front of its entry into the guide tube (13), said straightening means being capable of giving the cored wire (2) a straight direction without altering its circular cross section. Preferably, the straightening means consist of a plurality of sets of two press rolls, the contact between the cored wire and each press roll being along a contact surface or along at least two lines of contact.

Classes IPC  ?

• C21C 7/00 - Traitement à l'état liquide des alliages ferreux, p. ex. des aciers, non couverts par les groupes
• B21F 1/02 - Redressage

Produits et services

[ Treatment of Materials for Others-Namely, Refining, Desulphurization, and Deoxidation of Steels ] Chemical Compositions for Use in the Treatment of Metal Baths-Namely, Calcium-Silicon Powder, Boron, Magnesium, Lead, and Rare Earths Metal Cables and Cored Wire (Non-Electric) for Use in Ladle Treatment of Molten Metals