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. 03, 2014
Filed:
Jul. 12, 2012
Applicants:
Bernd Barthel, Herborn, DE;
Heinrich Groos, Herborn, DE;
Hans Hermanni, Sinn-Fleisbach, DE;
Inventors:
Assignee:
Berkenhoff GmbH, Herborn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 39/00 (2005.12); B32B 15/20 (2005.12);
U.S. Cl.
CPC ...
Abstract
In order to produce a wire electrode having a core consisting of a copper/zinc alloy and to produce a specific sheath layer, the sheath layer is coated onto the core at a temperature at which no diffusion occurs. The wire electrode is subsequently heated at a heating speed higher than 10° C. per second, briefly annealed at temperatures above 500° C. and subsequently cooled again very rapidly at cooling speeds higher than 10° C. per second.