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:
Jun. 06, 2017
Filed:
Dec. 17, 2010
Maxime Monnoyer, Sainte-Marie-Aux-Chenes, FR;
Daniel Chaleix, Verny, FR;
Christian Allely, Metz, FR;
Daniel Jacques, Thionville, FR;
Julie Chassagne, Liege, BE;
Maxime Monnoyer, Sainte-Marie-Aux-Chenes, FR;
Daniel Chaleix, Verny, FR;
Christian Allely, Metz, FR;
Daniel Jacques, Thionville, FR;
Julie Chassagne, Liege, BE;
ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO SL, Sestao, Bizkaia, ES;
Abstract
A steel sheet is provided. The steel sheet includes a multilayer coating including at least one zinc-based layer being 0.1% to 20% magnesium by weight which is covered by a fine temporary protective layer of 5 to 100 nm. The fine temporary protective layer is composed of metal or metal oxide selected from the group consisting of aluminum, chromium, aluminum oxides AlOx, with x being strictly between 0.01 and 1.5 and chromium oxides CrOy, with y being strictly between 0.01 and 1.5. The at least one zinc-based layer is not alloyed with the temporary protective layer. Manufacturing methods for a sheet and part are also provided.