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:
Oct. 31, 2017
Filed:
Dec. 13, 2012
Thyssenkrupp Steel Europe Ag, Duisburg, DE;
Outokumpu Nirosta Gmbh, Krefeld, DE;
Marc Blumenau, Hagen, DE;
Christopher Gusek, Iserlohn, DE;
Fred Jindra, Lennestadt, DE;
Rudolf Schoenenberg, Daphne, AL (US);
Hans-Joachim Krautschick, Solingen, DE;
ThyssenKrupp Steel Europe AG, Duisburg, DE;
Outokumpu Nirosta GmbH, Krefeld, DE;
Abstract
A method which allows process-stable hot-dip coating of Ni-alloy steel flat products in a cost- and resource-effective manner, including the following steps: a) provision of a steel flat product obtained by cold- or hot-rolling; b) within 1-30 s, heating the steel flat product to a holding temperature between 700 and 1100° C., under a heating atmosphere of N2; c) holding the steel flat product at the holding temperature for a holding duration of 10-120 s under a holding atmosphere of N2; d) cooling the steel flat product from the holding temperature to a strip inlet temperature of 430-800° C.; and e) passing the steel flat product through an inlet zone, in which an inert or reducing inlet atmosphere predominates, and passing the steel flat product through a melt bath, wherein TP>TP>TP