Arcelormittal

Arcelormittal France

Arcelormittal Investigacion Y Desarrollo, S.l.

Arcelormittal Investigacion Desarrollo Sl

Arcelormittal Investigacion Y Desarrollo

Bruno Schmitz

Eric Silberberg

Sergio Pace

Daniel Chaleix

Xavier Vanden Eynde

Didier Marneffe

Maxime Monnoyer

Luc Vanhee

Daniel Jacques

Remy Bonnemann

Benoit Deweer

Patrick Choquet

Pierre Banaszak

Luc VanHee

Isabelle Capitani

A method for the fabrication of a coated sheet is provided. The method includes the steps of providing a sheet in a deposition chamber, maintaining the deposition chamber at a pressure P, maintaining an ejection chamber that is located inside the deposition chamber at a pressure Pand coating the sheet with zinc with a sonic vapor jet. A ratio of the pressures Pto Pis between 2·10and 5.5·10.

Steel sheet provided with a zinc coating

A vacuum deposition facility for continuously depositing, on a running substrate, coatings formed from metal or metal alloy, and including:

Vacuum deposition facility and method for coating a substrate

A vacuum deposition facilityfor continuously depositing, on a running substrate S, coatings formed from metal or metal alloy, the facility including an evaporation cruciblesuited to supply metal or metal alloy vapor and including an evaporation pipe, a deposition chambersuited to have the substrate S run through along a given path P and a vapor jet coaterlinking the evaporation pipe to the deposition chamber, wherein the vapor jet coater further includes a repartition chamberincluding at least one reheaterpositioned within the repartition chamber and a vapor outlet orificeincluding a base opening linking the vapor outlet orifice to the repartition chamber, a top opening through which the vapor can exit in the deposition chamber and two sides converging toward each other in the direction of the top opening.

Vacuum deposition facility and method for coating a substrate with transverse repartition chamber

A vacuum deposition facility for continuously depositing, on a running substrate, coatings formed from metal or metal alloy, the facility including—a vacuum chamber and a device for running the substrate through the vacuum chamber along a given path, wherein the vacuum chamber further includes:

A steel sheet is provided with a coating having at least one layer of zinc and a top layer of paint applied by cataphoresis. The zinc layer is deposited by a jet vapor deposition process in a deposition chamber maintained at a pressure between 6&#xb7;10mbar and 2&#xb7;10mbar. A fabrication method and an installation are also provided.

Painted steel sheet provided with a zinc coating

A method for fabricating a substrate provided with a plurality of layers, includes: providing a steel substrate with an oxide layer including metal oxides on the steel substrate; providing a metal coating layer directly on the oxide layer, the metal coating layer including: at least 8% by weight nickel; at least 10% by weight chromium; and a remainder being iron and impurities from a fabrication process; and providing an anti-corrosion coating layer directly on the metal coating layer.

Fabrication method for a multi-layer substrate

Equipment for manufacturing a metal strip coated by a process that includes vacuum-depositing a layer of an oxidizable metal or an oxidizable metal alloy on a metal strip precoated with zinc or with a zinc alloy, then coiling the coated metal strip, then oxidizing a surface of the metal strip coated with the oxidizable metal or oxidizable metal alloy and treating the oxidized wound coil with a static diffusion treatment to obtain a strip having a coating that includes, in an upper portion, a layer of an alloy formed by diffusion of the oxidizable metal or the oxidizable metal alloy in all or part of the zinc or zinc alloy layer. The equipment includes a device for galvanizing the metal strip, a vacuum deposition coating device, and a static heat treatment device operating in a controlled atmosphere.

Equipment for coating a metal strip

A method deposits a metal alloy coating on a substrate using a vacuum deposition facility. The facility is equipped with a vapour generator/mixer comprising a vacuum chamber enclosure provided with an inlet and an outlet for the substrate. The enclosure includes a vapour deposition head and an ejector is provided to create a jet of metal alloy vapour of sonic velocity towards the surface of the substrate and perpendicular thereto. The ejector is in sealed communication with a separate mixer device, which is itself connected upstream to at least two crucibles respectively, these containing different metals in liquid form, each crucible being connected to the mixer by its own pipe. The method uses a series of partitions to create alternating layers of metal vapours. The metal vapours enter the mixer inlet of the mixer at a velocity from 5 to 50 m/s to provide better homogeneity.

Industrial vapor generator for depositing an alloy coating on a metal strip

Substrate provided with a plurality of layers, at least one of which includes metal oxides and is topped directly by a metal coating layer that contains at least 8% by weight nickel and at least 10% by weight chromium, the remainder being iron, additional elements and the impurities resulting from the fabrication process, wherein this metal coating layer is topped directly by an anticorrosion coating layer. A corresponding fabrication method is also provided.

Multi-layer substrate

A steel sheet is provided with a coating having at least one layer of zinc and a top layer of paint applied by cataphoresis. The zinc layer is deposited by a jet vapor deposition process in a deposition chamber maintained at a pressure between 6&#xb7;10mbar and 2&#xb7;10mbar. A fabrication method is also provided.

The invention relates to a process for coating a metal strip, in which a layer of an oxidizable metal or an oxidizable metal alloy or a metal oxide is vacuum-deposited on a metal strip precoated with zinc or with a zinc alloy, the coated metal strip is then coiled, and the wound coil undergoes a static diffusion treatment so as to obtain a strip having a coating that comprises, in the upper portion, a layer of an alloy formed by diffusion of the oxidizable metal or the oxidizable metal alloy in all or part of the zinc or zinc alloy layer, and also to equipment for implementing the process.

Method for coating a metal strip and equipment for implementing said method

The present invention relates to a facility for the continuous vacuum deposition of a metal coating on a substrate in motion, comprising a vacuum deposition enclosure (), at least one vapor jet deposition head () connected to an evaporator pot () designed to contain the coating metal in liquid form (), through a vapor supply pipe () provided with a distribution valve (), and a melting furnace () for said metal, said furnace being at atmospheric pressure, located below the lowest portion of the evaporator pot () and connected to the evaporator pot () by at least one automatic supply pipe () of the evaporator pot () provided with a supply pump () and by at least one liquid metal return pipe (A,) optionally provided with a valve (), regulating means for the supply pump () further being present to regulate a determined liquid metal level in the evaporator pot (), characterized in that it comprises, in each said supply and return pipes (A,), a so-called heat valve area () provided with a heating device and a cooling device to obtain a regulated temperature, independent of that of the melting furnace (), that prevailing in the remaining portion of said pipes (A,) and in the evaporator pipe (), to melt or solidify the metal found in that location.

Automatic supply device for an industrial metal vapor generator

The invention relates to a process for coating a substrate (S) whereby a metal alloy layer comprising at least two metallic elements is continuously deposited on the substrate (S) by means of a vacuum deposition facility () comprising a vapor jet coater () for spraying the substrate (S) with a vapor containing the metallic elements in a constant and predetermined relative content, the vapor being sprayed at a sonic velocity. The process is more particularly intended for depositing Zn&#x2014;Mg coatings. The invention also relates to a vacuum deposition facility () for continuously depositing coatings formed from metal alloys, for implementing the process.

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Nandrin, Belgium

Bruno Schmitz