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:
Nov. 16, 2010
Filed:
Jun. 09, 2004
Werner Brandstätter, Linz, AT;
Herbert Eibensteiner, Droβ, AT;
Martin Fleischanderl, Rainbach i.M, AT;
Josef Faderl, Steyr, AT;
Gerald Landl, Linz, AT;
Anna Elisabeth Raab, Linz, AT;
Siegfried Kolnberger, Pasching, AT;
Werner Brandstätter, Linz, AT;
Herbert Eibensteiner, Droβ, AT;
Martin Fleischanderl, Rainbach i.M, AT;
Josef Faderl, Steyr, AT;
Gerald Landl, Linz, AT;
Anna Elisabeth Raab, Linz, AT;
Siegfried Kolnberger, Pasching, AT;
voestalpine Stahl GmbH, Linz, AT;
Abstract
The invention relates to a method for producing a hardened profiled structural part from a hardenable steel alloy with cathodic corrosion protection. The method includes applying a coating to a sheet made of a hardenable steel alloy, wherein the coating comprises zinc, and the coating further comprises one or several elements with affinity to oxygen in a total amount of 0.1 weight-% to 15 weight-% in relation to the total coating. After applying the coating, the coated sheet steel is roller-profiled in a profiling device. Thereafter, the coated sheet steel is heated to a structural change required for hardening. A skin made of an oxide of the element(s) with affinity to oxygen is formed on the surface of the coating. After sufficient heating the sheet is cooled, wherein the rate of cooling is set in such a way that hardening of the sheet alloy is achieved.