Device and method for heat treatment of steels, including a wet cooling
AssigneeFives Stein
InventorsSébastien Lemaire, Patrice Sedmak
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Abstract
The invention relates to a method for removing residues present on a metal strip at the outlet of a cooling stage of a continuous line, the residues being formed during a cooling of said metal strip by a non-oxidizing liquid solution for the metal strip and a stripping liquid solution for the oxides present on the surface of the strip, or by a mixture of this liquid solution and a gas. The method according to the invention is characterized in that it comprises a step of reducing the residues by hydrogen.
Claims7
A method for removing residues present on a metal strip at the outlet of a cooling stage of a continuous line, the residues being formed during a cooling of said metal strip by a non-oxidizing liquid solution for the metal strip and a stripping liquid solution for the oxides present on the surface of the strip, or by a mixture of this liquid solution and a gas, characterized in that the method comprises a step of reducing the residues by hydrogen;
- wherein the hydrogen or hydrogenated atmosphere blown onto the metal strip has a temperature of between 500° C. and 800° C.
Dependencies are inferred from the claim text.