Abstract

An electrochemical treatment method includes: implementing an electrolytic cell containing an electrolytic bath; and immersing an electrode and a deformable counter-electrode in the electrolytic bath, both the electrode and the deformable counter-electrode being connected to a source of continuous or pulsed current, the electrode having an electrically-conductive part and the counter-electrode to be brought near the electrode. A geometry of the deformable counter-electrode is adapted automatically, locally, and independently point by point, to a geometry of the electrically-conductive part before the electrochemical treatment is performed.

IPC Classes  ?

• C25D 17/12 - Shape or form
• C25D 21/12 - Process control or regulation

Abstract

The present invention relates to a method for producing a carbon coating on a metal substrate, the metal substrate being chosen from the group consisting of stainless steel, carbon steel, galvanised steel, copper and aluminium, which method comprises the steps of: - depositing onto the metal substrate at least one thin intermediate metal layer having a thickness of less than 100 nm; - depositing a conductive carbon outer layer having a dry final thickness of between 1 and 50 µm, obtained by the sol-gel method; the nature of the metal substrate, of the intermediate layer and of the outer layer, as well as the thicknesses thereof, being chosen so as to obtain an interfacial contact resistance (ICR) of the coated substrate of less than 10 mΩ.cm2, at a compaction force of 100 Ncm-2.

IPC Classes  ?

• C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
• C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
• C23C 14/58 - After-treatment
• H01M 8/0206 - Metals or alloys
• H01M 8/021 - Alloys based on iron
• H01M 8/0213 - Gas-impermeable carbon-containing materials
• H01M 8/0228 - Composites in the form of layered or coated products
• C23C 18/12 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
• F24S 70/20 - Details of absorbing elements characterised by absorbing coatingsDetails of absorbing elements characterised by surface treatment for increasing absorption

Abstract

A pickling installation for applying a pickling treatment to a metal strip in continuous movement, the pickling treatment using an acid solution, the pickling installation including: a plurality of cascading treatment tanks among which at least one treatment tank includes a spray/injection section for spraying/injecting the acid solution on the metal strip; and collection means for retrieving the sprayed acid solution after use and redirecting the sprayed acid solution to each spray/injection section. The at least one treatment tank has a first header in front of a first face of the metal strip and a second header in front of a second face of the metal strip. In a first treatment tank configuration, each of the first header and the second header have an internal flat surface intended to be parallel respectively to first and second faces of metal strip, and at a distance thereof.

IPC Classes  ?

• C23G 1/02 - Cleaning or pickling metallic material with solutions or molten salts with acid solutions
• C23G 3/02 - Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
• C23G 1/19 - Iron or steel

Abstract

19 ABSTRACT MULTILAYER ULTRATHIN AND FLEXIBLE UNIT HEATER CELLS FOR INFRARED STEALTH The present invention relates to an ultrathin, multilayer and encapsulated surface element (1) for providing thermal signature adaptation with the purpose 5 of infrared stealthing, and being also suited for camouflage in the visible, the element comprising : - a lower layer made of an insulation substrate (3, 30); - an intermediate layer comprising a plurality of conductive tracks (4) connectable to a power supply;10 - a plurality of active heat dissipation elements (2, 20) connected to the conductive tracks (4) in the intermediate layer and capable to provide a temperature increase in a given time interval when a current is fed into said heat dissipation elements; - an upper layer made of a protective layer (5);15 characterized in that the heat dissipation elements (2, 20) and the conductive tracks (4) are printed on the insulation substrate (3, 30) and in that the heat dissipation elements (2) have a size and are organized according to a spatial arrangement so as to provide a predetermined infrared spatial resolution, when a current is fed into said dissipation elements.20 (Fig. 4B)

IPC Classes  ?

• F41H 3/02 - Covers, e.g. screens, nets

Abstract

The present invention relates to a method for manufacturing a hot rolling mill roll by laser cladding a reusable steel axe substrate having a rotational symmetry axis with a metal coating external layer, said metal coating external layer having a work tool steel composition, wherein the composition for said metal coating external layer comprises 0.5-3.5% C, 2-18% Cr, 0.5-7% Mo, 0.5-8% V, 0.2-7% W, 0-5% Nb, 0-1% Ti, 0.5-2% Mn, 0.2-3% Si and 0-3% Ni, the rest being Fe and inevitable impurities;characterised in that : - the composition for said metal coating external layer further comprises nitrogen in the range 200-2500ppm; - the sum of atomic contents (mass %) of MC carbides-forming elements, selected from the group consisting of Ti, Nb, and V, + 3/8 of the sum of atomic contents (mass %) of M23C6 and/or M2C forming elements, selected from the group consisting of Mo, W, and Cr, is lower than the sum of atomic contents (mass %) of interstitial elements C and N, + 0.01.

IPC Classes  ?

• B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
• B23K 26/34 - Laser welding for purposes other than joining
• B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
• B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
• C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
• C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
• C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
• C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
• C22C 38/36 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
• F16C 13/00 - Rolls, drums, discs, or the likeBearings or mountings therefor
• B23K 101/06 - Tubes
• B23K 103/04 - Steel alloys
• B23K 103/18 - Dissimilar materials

Abstract

A method for electromagnetic and real-time measurement of a percentage of austenite contained in a steel strip in continuous motion during in-line manufacture or transformation thereof, by a device including the steel strip and a measuring device including at least: an alternating-current generator; a first coil supplied by the alternating-current generator, called a transmitting coil, and a second coil, called a receiving coil, the first and second coils being arranged parallel to each other or coaxial and on both sides of the steel strip, a distance between the coils being fixed and between 10 and 200 mm; a core of ferromagnetic material being a center of each coil, respectively; and at least one voltage-measuring device connected to terminals of the receiving coil, being a multimeter or an electronic acquisition system having an analog-digital converter coupled to a computer, to obtain the percentage of austenite contained in the steel strip.

IPC Classes  ?

• G01N 33/2028 - Metallic constituents
• C21D 9/56 - Continuous furnaces for strip or wire
• C21D 9/573 - Continuous furnaces for strip or wire with cooling
• C21D 11/00 - Process control or regulation for heat treatments
• G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables

Abstract

An industrial facility includes: a metal strip in motion; and/or at least one work cylinder; a contactless wiping system of a cooling liquid and/or lubricant jet or stream driven by a surface of the metal strip in motion or the work cylinder, the wiping system including a separating cleat with integrated supply of cooling liquid ending with a nozzle bar to be placed along a width of the metal strip or the cylinder and separated, during use, by a determined interval with respect to the metal strip or the work cylinder, the nozzle bar being oriented so as to supply a jet in a for of a liquid curtain oriented along a direction that is substantially opposite a scrolling direction of the strip or a rotation direction of the cylinder; and a liquid recovery trough, oriented such that during use, liquid sprayed by the nozzles deflects the jet.

IPC Classes  ?

• B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
• B21B 27/10 - Lubricating, cooling, or heating rolls externally

Abstract

The present invention relates to a method for producing a coating on a passivated metal substrate, characterized by a step of depassivation of said substrate, comprising the depositing, onto said substrate, of at least one thin layer, the composition of which comprises at least one chemical element having a specific affinity for oxygen, so that this element captures a portion of the oxygen present in the oxide layer which is at the surface of the passivated substrate.

IPC Classes  ?

• C23C 14/02 - Pretreatment of the material to be coated
• C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
• C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
• C23C 14/34 - Sputtering
• C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
• C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
• H01M 4/88 - Processes of manufacture
• H01M 8/0206 - Metals or alloys
• H01M 8/0208 - Alloys
• H01M 8/021 - Alloys based on iron
• H01M 8/0215 - GlassCeramic materials
• H01M 8/0228 - Composites in the form of layered or coated products
• H01M 8/1018 - Polymeric electrolyte materials

Abstract

The present invention relates to a device for electromagnetically measuring, in real time, the percentage of austenite contained in a continuously running steel strip during an in-line process for manufacturing or transforming the latter, such that the magnetic field produced by the alternating current flowing through the emitter coil (1) produces, in the steel strip (5), induced currents that generate an induced magnetic field creating, in the receiver coil (2), an electromotive force that can be measured by the voltage measurement device (4), the amplitude of this electromotive force being dependent on the voltage applied to the emitter coil and on the nature of the steel in the strip (5). The device is characterized in that the first and second coils (1, 2) are arranged in parallel to one another with a set distance between them and, in use, on either side of the steel strip (5).

IPC Classes  ?

• G01N 27/72 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
• G01N 27/90 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
• C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering

Abstract

The present invention concerns a contactless wiping system (1) for wiping coolant and/or lubricant from the surface of a moving metal strip (15) or a working roll (3), comprising a separation block (7) with an integrated coolant supply ended by a manifold of nozzles (2) intended to be placed along the width of the strip (15) or the roll (3), and suitable for being separated from the metal strip (15) or working roll (3) by a determined gap (6) during use, the nozzles (2) being oriented in such a way as to provide a jet (4) in the form of a liquid curtain oriented in a direction substantially opposite the direction of travel of the strip (15) or the direction of rotation of the roll (3) and a liquid recovery gutter (5), such that, during use, the liquid sprayed by the nozzles (2) is capable of deflecting a liquid and/or a lubricant (4') entrained by the strip (15) or by the roll (3) and of forming a combined flow (4") of liquid or of a mixture of liquid and lubricant that moves off the strip (15) or the roll (3), falling back into the recovery gutter (5) and allowing said combined flow (4") to be discharged, practically no liquid and/or lubricant being entrained by the strip (15) or the roll (3) downstream from the wiping system (1).

IPC Classes  ?

• B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning

Abstract

A facility for dip-coating a metal strip in continuous motion includes: a liquid coating metal bath from which the strip exits in a vertical strand; a bottom roller, a decambering roller, and, optionally, a stabilizing roller, all immersed in the liquid-metal bath; drying blades at an exit of the bath, for injecting compressed gas in order to remove excess coating that has not yet solidified so as to create a drying wave having a downward return stream of liquid metal; and a dissipating hydrodynamic-stabilization device placed between the drying blades and a last immersed roller, the dissipating hydrodynamic-stabilization device including a plurality of hydrodynamic pads for applying a load to at least one side of the metal strip and mounted so as to pivot around hinges so as to self-align the pads, the plurality of hydrodynamic pads extending transversely across a width of the strip.

IPC Classes  ?

• C23C 2/22 - Removing excess of molten coatingsControlling or regulating the coating thickness by rubbing, e.g. using knives
• C23C 2/20 - StripsPlates
• C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
• B05C 11/04 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surfaceControl of the thickness of a coating with blades
• B05C 1/06 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length by rubbing contact, e.g. by brushes, by pads
• C23C 2/06 - Zinc or cadmium or alloys based thereon
• C23C 2/40 - PlatesStrips

Abstract

The present invention relates to a method for preprocessing, conditioning, recycling and recovering capsules used in the production, under pressure, of hot drinks and packagings of pharmaceutical or cosmetic products, comprising a container and organic residues, including the following steps: the capsules or packagings are collected; an intensive rotary mixer is supplied with the capsules or packagings; the capsules or packagings are torn or ripped apart by centrifugation and attrition in the intensive mixer, giving rise to a mixture of container residues of various sizes and of organic residues liberated from the capsules or packagings; and said mixture is screened in order to separate the container residues and the organic residues.

IPC Classes  ?

• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• A47J 31/44 - Parts or details of beverage-making apparatus
• B03B 9/06 - General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
• B09B 5/00 - Operations not covered by a single other subclass or by a single other group in this subclass
• B65B 69/00 - Unpacking of articles or materials, not otherwise provided for
• B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics

Abstract

The present invention relates to a method for the automated, in-line measurement of the surface cleanliness, in terms of carbon pollution, of a continuously moving metal sheet or strip (3), characterised by a step of measuring the light intensity of an intense CN radical vibration line, which is correlated with the measurement of the intensity of a nitrogen vibration line in order to compensate for the fluctuations arising from the radiation beam and the radiation-matter interactions.

IPC Classes  ?

• G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited

Abstract

The invention relates to a method for producing products containing aluminium, based on an assembly step, i.e. a controlled mixture, or blend, of different types of recycled aluminium products, and based on at least the combination of the following treatment steps: selective collection of recycled aluminum products from packagings, machining chips or in the form of ground parts or fragments (11, 12, 13, 14, 15, 16); assembly and production of a mixture (1) of the recycled products collected in proportions defined according to the nature thereof, the selected method of production and the target use; grinding and screening (2) of the mixture to produce a finely divided product; compacting (3) of the finely divided product into small bricks, balls or blocks (33), and if necessary for the final reclamation: controlled melting (5) of the small bricks (33); final nuancing; and casting and/or shaping (6) into titrated lingots or granules (52, 61) according to the demand of the client and/or the target use.

IPC Classes  ?

• C22B 21/00 - Obtaining aluminium

Abstract

The present invention relates to a facility for coating a continuously travelling metal strip (1) by dipping, including a liquid coating metal bath (2) which the strip exits as a vertical strand, a bottom roller (4), a decambering roller (5a) and, where necessary, a stabilising roller (5b), which rollers are submerged in the liquid metal bath (2), drying blades (3) that are placed at the exit of the bath (2) and inject a compressed gas in order to remove the excess coating that has not yet solidified, creating a drying wave (11) having a downward return flow (14) of liquid metal, and a dissipating device for hydrodynamic stabilisation placed between the drying blades (3) and the last submerged roller (5a or 5b), including a plurality of hydrodynamic pads (6) intended for applying a load to at least one side of the metal strip (1) and mounted so as to pivot about hinges (7) for self-aligning said pads, also extending transversely across the width of the strip (1), and positioned such that, when in use, the liquid metal return flow (14) of the drying wave (11) flows at least in part over the back of the pads (6).

IPC Classes  ?

• C23C 2/20 - StripsPlates
• C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor

Abstract

The present invention relates to a method for manufacturing a rolling mill roll by laser cladding a steel axe substrate having a rotational symmetry axis with a metal coating external layer, said metal coating external layer having a work tool steel composition, comprising the steps of : - rotating the substrate around its axis of rotational symmetry; - forming a melt pool on the surface of the rotating substrate by means of a laser beam and affixing the coating layer by feeding a powder material into the laser- induced melt pool, wherein the composition for said metal coating external layer is essentially consisting of 0.5-3.5% C, 2-18% Cr, 0.5-7% Mo, 0.5-8% V, 0.2-5% W, 0-5% Nb, 0-1 % Ti, 0.5-1 % Mn, 0.2-3% Si and 0-3% Ni, the rest being Fe and inevitable impurities.

IPC Classes  ?

• B21B 27/00 - RollsLubricating, cooling or heating rolls while in use
• B23K 26/34 - Laser welding for purposes other than joining
• B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
• C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
• B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
• B23K 103/04 - Steel alloys
• B23K 101/34 - Coated articles

Abstract

The present invention relates to a method for measuring the liquid-metal surface level (13) and the slag surface level (14) in the crucible (1) of a metallurgical shaft furnace comprising the following steps: measuring, at one or more points on the external wall (2) of the crucible, the following variables: the circumferential strain in said external wall (2) by means of a number of strain-gauge sensors (6) fixed to the armor (4) of the external wall (2) of the crucible; and the temperature of said external wall (2) by means of one or more temperature sensors (7) fixed to the armor (4) of the external wall (2) of the crucible; introducing said variables measured at a number of points on the external wall of the crucible into the general equation governing circumferential strain, the solution of which is analytical, and which contains two unknowns, the liquid metal level and the overall liquid metal/slag level, considering set parameters; and solving said equation and obtaining an analytical solution giving the liquid metal surface level (13) and the slag surface level (14) in the crucible (1).

IPC Classes  ?

• G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
• C21B 7/24 - Test rods or other checking devices
• C21C 5/46 - Details or accessories
• G01F 23/14 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
• G01F 23/22 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
• F27B 1/28 - Arrangements of monitoring devices, of indicators, of alarm devices
• F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
• G01F 23/24 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
• C21C 5/52 - Manufacture of steel in electric furnaces

Abstract

The present invention relates to a device (8) for cooling a flat or long metallurgical product (1) in a cold rolling mill, by creating a highly turbulent liquid coolant cushion at low pressure, comprising a header made of one or more compartments (9), each compartment (9) being provided with a means for supplying the liquid coolant (10) under the form of an emulsion and with a means for locating an internal surface of the header at short distance of the product (1), said internal surface comprising a plurality of nozzles suitable for supplying an emulsion and arranged according to a well-defined two-dimensional pattern (11), said pattern being designed so as to create a homogeneous highly turbulent liquid coolant cushion at low pressure on the surface of the product.

IPC Classes  ?

• B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning

Abstract

The present invention relates to a method for measuring the liquid-metal surface level (13) and the slag surface level (14) in the crucible (1) of a metallurgical shaft furnace comprising the following steps: measuring, at one or more points on the external wall (2) of the crucible, the following variables: the circumferential strain in said external wall (2) by means of a number of strain-gauge sensors (6) fixed to the armour (4) of the external wall (2) of the crucible; and the temperature of said external wall (2) by means of one or more temperature sensors (7) fixed to the armour (4) of the external wall (2) of the crucible; introducing said variables measured at a number of points on the external wall of the crucible into the general equation governing circumferential strain, the solution of which is analytical, and which contains two unknowns, the liquid metal level and the overall liquid metal/slag level, considering set parameters; and solving said equation and obtaining an analytical solution giving the liquid metal surface level (13) and the slag surface level (14) in the crucible (1).

IPC Classes  ?

• G01F 23/22 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
• G01F 23/14 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
• B22D 11/18 - Controlling or regulating processes or operations for pouring
• C21B 7/24 - Test rods or other checking devices
• C21C 5/46 - Details or accessories

Abstract

The present invention relates to a process for coating a moving substrate comprising successively: - at least partially continuous deposition of a liquid organic coating onto the substrate; - at least partially continuous projection of non-metallic inorganic microparticles having a size between 1 and 100 μm, so as to incorporate said microparticles essentially homogeneously into the body of organic coating still in the liquid phase, the microparticle content in the coating being between 5% and 50% by volume.

IPC Classes  ?

• C09D 7/12 - Other additives
• B05D 5/02 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
• B05D 1/06 - Applying particulate materials
• B05D 1/30 - Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating

Abstract

A device for focusing a laser beam (1) onto the surface (4) of a liquid, viscous or powder material, of which the level is variable over time, comprising: an image processing system for determining the apparent internal diameter of the nozzle (3) at the surface (4) and means for successively calculating the distance between the laser source (1) and the surface (4) on the basis of the apparent internal diameter of the nozzle (3) and the focusing that results therefrom of the laser beam on the surface (4); means (6, 7, 12) for modifying the focus of the laser beam by acting on optical means (2) on the basis of said calculated distance.

IPC Classes  ?

• G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
• B23K 26/04 - Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
• G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
• G01F 23/292 - Light
• G01F 23/68 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type using electrically actuated indicating means

Abstract

The present invention relates to an installation for recovering energy lost in a high-speed factory line producing parts (3) carried at a high temperature which then need to be treated at a low temperature, comprising pressurised and sealed compartments or boxes (4, 4', 4'' etc.) wherein said parts (3) carried at high temperature are deposited and cooled to said low temperature, each pressurised and sealed compartment (4, 4', 4'' etc.) being supplied by a closed cooling circuit (1) containing a supercritical fluid, and a heat recovery system (2).

IPC Classes  ?

• F22B 1/04 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks
• F22B 3/08 - Other methods of steam generationSteam boilers not provided for in other groups of this subclass at critical or supercritical pressure values

Abstract

The present invention relates to a method for lubricating a rolling mill using a lubricant including used oil.

IPC Classes  ?

• B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning

Abstract

The present invention relates to an automated in-line method for measuring the surface cleanness of a continuously running metal sheet or strip, characterized by the following steps: a beam of radiation or a particle beam or a spark is focused onto the surface of the running strip, the transmitted power and the focal diameter being chosen so as to obtain a power density sufficient to create a plasma or hot spot which locally etches the metal in the form of a central zone surrounded by a peripheral oxidation ring; the characteristics of a zone encompassing said oxidized ring and possibly said central zone are analyzed by means of an optical image acquisition device and image processing; and an objective value indicative of the surface cleanness is deduced therefrom.

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
• G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
• G01N 21/67 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges
• G06T 7/00 - Image analysis

Abstract

The present invention relates to a measurement facility provided with a sensor intended for chemical analysis of a bath heated to high temperature in a dusty environment and provided with a cooling device that also protects against fumes and dust, comprising a preferably horizontal base (1) located above the bath to be analysed and supporting a sealed box (2) containing sensitive elements to be protected, said facility being characterized in that it includes cooling means acting as a screen to the radiation emanating from the bath and dissipating the heat transmitted by conduction, said cooling means comprising a water cooling circuit (IA) located in the preferably horizontal base (1) and at least four water radiators (5) forming an enclosure around the sealed box (2), said radiators being mounted so as to pivot on the base (1) by means of hinges (5A).

IPC Classes  ?

• G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited

Abstract

The present invention relates to a method for coating a static or moving metal substrate, having a simple or complex form, by means of an ultra-fine mineral/organic hybrid coating layer, having a thickness of 50 to 500 nm, deposited on the substrate: - from an aqueous solution containing oxide nanoparticles, - under basic pH conditions, - said substrate being at a temperature lower than 500°C, - the total duration of the deposition and drying being less than 10 seconds, characterized in that the aqueous solution also contains at least one prepolymer.

IPC Classes  ?

• C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
• C09D 5/08 - Anti-corrosive paints
• B05D 7/14 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
• C23C 22/26 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing hexavalent chromium compounds containing also organic compounds
• C23C 22/68 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8

Abstract

The present invention relates to an automated in-line method for measuring the surface cleanness of a continuously running metal sheet or strip, characterized by the following steps: a beam of radiation or a particle beam or a spark is focused onto the surface of the running strip, the transmitted power and the focal diameter being chosen so as to obtain a power density sufficient to create a plasma or hot spot which locally etches the metal in the form of a central zone surrounded by a peripheral oxidation ring; the characteristics of a zone encompassing said oxidized ring and possibly said central zone are analyzed by means of an optical image acquisition device and image processing; and an objective value indicative of the surface cleanness is deduced therefrom.

IPC Classes  ?

• G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited

Abstract

The present invention relates to a facility for chemically analyzing a bath (20) heated to high temperature, provided with a LIBS laser-plasma spectroscopy analysis head, comprising a high-energy pulsed laser (2) capable of remotely emitting a light beam focused into a region of the bath (20) having a chemical composition to be determined, in order to create a plasma locally, and comprising a spectrometer (13) for spectral analysis of the light emitted by said plasma, characterized in that the laser (2) is offset laterally thanks to a tube (3), which extends it and terminates in a lens for focusing the laser beam (4), and thanks to a first optical fibre (5), a first end (5A) of which is located at said focusing lens (4).

IPC Classes  ?

• G01N 21/71 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited

Abstract

The invention relates to a method for detecting an oxide layer on a metal strip moving in a continuous-production plant that comprises monitoring the moving strip using a contactless detection system based on the measurement of a thermal radiation emitted by said strip, characterised in that it comprises measuring the exposed temperature of the strip in a plurality of areas, i.e. the measure is carried out by deliberately omitting the application of an emissivity correction, and in that an oxide-covered layer is identified by an apparent temperature value that is substantially higher than that of one or more other oxide-free areas.

IPC Classes  ?

• G01B 21/08 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness

Abstract

The invention relates to a method for coating a metal substrate by deposition of a metal powder, characterised in that said metal powder includes a zinc, aluminium and magnesium mixture or alloy with 0.1 to 15 wt % of aluminium, 0.1 to 50 wt % of magnesium and optionally 0.2 wt % at most of silicon, and in that, during the deposition, the substrate is heated to a temperature higher than the lowest temperature at the liquid state of the chemical elements and alloys thereof that form the powder, so that said powder can melt at least partially when in contact with the substrate.

IPC Classes  ?

• C23C 2/26 - After-treatment
• C23C 24/10 - Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
• C23C 26/02 - Coating not provided for in groups applying molten material to the substrate

Abstract

The invention relates to a unit for the in-line lubrication of cylinders (1) intended for the, preferably hot, rolling of a, preferably steel, metal strip, in which a lubricant is sprayed or atomised onto a target comprising the cylinders and/or the strip, preferably close to the roll gap, using a spray bar (2) formed by controllable air sprays (3) disposed parallel to said cylinders (1) and supplied with pressurised inert gas or air (4). The invention is characterised in that each spray (3) includes an inlet for pressurised inert gas or air (4) and an inlet for non-pressurised pure oil (5) disposed in an adaptor (6), followed by a mixing chamber (6') as well as an outlet nozzle (7) for the atomised mixture.

IPC Classes  ?

• B21B 27/10 - Lubricating, cooling, or heating rolls externally

Abstract

The present invention relates to a device for cooling a working roll (1, 2) belonging to a rolling stand used for rolling a long or flat product (3), characterized in that it comprises a cooling head in the form of a box section (6A, 6B) that is sealed except along a front face (42) lying a short distance from said roll (1, 2), and in which face a plurality of nozzles (41) has been machined or positioned in a determined pattern, said box section (6A, 6B) being concave and cylindrical at its front face (42). The box section (6A, 6B) is also fitted with transverse (5, 7) and lateral (8) plates which collaborate with the front face (42) of the box section so as to control the flow of cooling liquid and confine said liquid in the form of a highly turbulent flow. This then yields optimal cooling of the roll both in terms of the uniformity of the cooling across the surface thereof and in terms of the reduction in temperature as a result of the turbulent effect created.

IPC Classes  ?

• B21B 27/10 - Lubricating, cooling, or heating rolls externally

Abstract

The invention relates to a continuous casting equipment for a flow of liquid steel from a tundish (2) into an ingot mould (1) through a hollow jet nozzle or HJN nozzle, comprising a deflector or dome (6) for diverting the incoming metal towards the side walls of the nozzle, said nozzle further including means for injecting a metallic powder or a finely ground solid metallic material (13, 13A, 14) under said dome (6) in an injection area (15), and means for injecting a non-oxidant gas (16, 17) for creating and maintaining the hollow jet, characterised in that the powder injection means (13, 13A, 14) are independent and physically separated from the non-oxidant gas injection means (16, 17) so that during the operation, the non-oxidant gas is not used as a vector for powder injection.

IPC Classes  ?

• B22D 41/50 - Pouring-nozzles

Abstract

The present invention relates to an installation for in-line controlling and, in real time, a bath for the hot-dip coating of a metal sheet by means of a molten metal, in particular for controlling the chemical composition of the bath and the presence of dross on the surface of the bath, comprising an LIBS (laser-induced breakdown spectroscopy) analysis system, a device for directing the laser beam onto the region to be analysed, a camera associated with a light source, so as to acquire an image of the bath at a point that it is desired to monitor the presence of dross, a control system, incorporated into a computer, for carrying out image processing, the storage of chemical analysis data using the aforementioned LIBS method, and the management of the movements of the laser beam and a system for warning an operator or a robotic mechanical device for removing dross from the surface of the bath.

IPC Classes  ?

• G01J 3/443 - Emission spectrometry
• C23C 2/14 - Removing excess of molten coatingsControlling or regulating the coating thickness

Abstract

The present invention relates to a process for manufacturing a projectile made of steel or based on iron, for a hunting or sports cartridge, for the purpose of giving it a Vickers hardness at room temperature of between 40 HV 10 and 110 HV 10, preferably between 40 HV 10 and 85 HV 10, characterized at least by the following successive steps: - liquid pig iron or steel is used, hereafter called liquid metal, the carbon content of which is between 0.8 and 4.0% C by weight, preferably between 0.8 and 2.0% C by weight; - the liquid metal is cast using a steam or water-vapour granulation process to obtain spheroidal steel particles; - said particles are subjected to a heat treatment for softening the solidified metal by graphitization, while remaining in the ferritic range; and - optionally, said particles are subjected to a surface coating treatment.

IPC Classes  ?

• F42B 7/04 - Cartridges, i.e. cases with propellant charge and missile of pellet type
• F42B 12/74 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body

Abstract

The present invention relates to a device for the dynamic control, in a metallurgical oven, of a lance (9) for blowing pressurized gas containing oxygen, or solids, said device comprising contactless measurement means situated outside the oven for estimating the distance (D) between one end (8') of the lance (9) and a target formed by the solid scrap (5) situated opposite said end (8'), characterized in that said means comprise a radiation source (14) emitting an incident beam (16) in the direction of said target (5) and a detector (15) where a beam (17) reflected by the target (5) is captured, such that the incident beam (16) and the reflected beam (17) both pass into the inner section of a pipe situated along the axis of said lance (9).

IPC Classes  ?

• C21C 5/52 - Manufacture of steel in electric furnaces
• F27D 3/16 - Introducing a fluid jet or current into the charge
• F27D 19/00 - Arrangement of controlling devices
• F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices

Abstract

The present application relates to a method for continuously annealing and preparing a strip of high-strength steel for the purpose of hot-dip coating it in a bath of liquid metal, in which said steel strip is treated in at least two sections, comprising in succession, when considering the direction of advance of the strip: a section called the heating and holding section, in which the strip is heated and then held at a given annealing temperature in an oxidizing atmosphere; and a section called the cooling and transfer section, in which the annealed strip at least is cooled and undergoes complete reduction, in a reducing atmosphere, of the iron oxide present in the oxide layer formed in the previous section, in such a way that the oxidizing atmosphere is separated from the reducing atmosphere, a controlled oxygen content is maintained in the heating and holding section between 50 and 1000 ppm, and a controlled hydrogen content is maintained in the cooling and transfer section at a value of less than 4% and preferably less than 0.5%.

IPC Classes  ?

• C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas