The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2020
Filed:
Feb. 06, 2013
Arcelormittal, Luxembourg, LU;
Maiwenn Tifenn Soazig Larnicol, Saint-Marc, BE;
Michel Roger Louis Bordignon, Sprimont, BE;
Xavier Marc Jacques Edmond Robert Vanden Eynde, Braives, BE;
Ana Isabel Farinha, Namur, BE;
Pascal Gerkens, Baelen, BE;
Jean-Francois Noville, Milmort, BE;
Julien Christopher Michel Smal, Temploux, BE;
ARCELORMITTAL, Luxembourg, LU;
Abstract
A method of treatment of a running ferrous alloy sheet containing at least one easily oxidized element is provided. The method includes a step of immersion of the sheet in a molten oxides bath. The molten oxides bath has a viscosity between 0.3.10Pa·s and 3.10Pa·s, the surface of the bath is contact with a non-oxidizing atmosphere, and the molten oxides are inert towards iron. The residence time of the running sheet in the bath is at least 1 s and the residues of oxides remaining on the surfaces of the sheet at the exit of the bath are eliminated. A treatment line of a ferrous alloy sheet for implementing the method, is provided. The treatment line includes a molten oxides bath having a viscosity between 0.3.10and 3.10Pa·s. The surface of the bath is contact with a non-oxidizing atmosphere, and the molten oxides are inert towards iron. Mechanical devices for eliminating the residues of molten oxides remaining on the surfaces of the ferrous alloy sheet are at the exit of the molten oxides bath.