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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.:

US 9738961 B1

PDFFull Text
Date of Patent:
Aug. 22, 2017

Filed:

Sep. 28, 2016

Copper-nickel-zinc alloy containing silicon

Applicant:

Wieland-werke Ag, Ulm, DE;

Inventors:

Hans-Achim Kuhn, Illertissen, DE;

Rudolf Liebsch, Voehringen, DE;

Assignee:

WIELAND-WERKE AG, Ulm, DE;

Attorney:

Flynn, Thiel, Boutell & Tanis, P.C.

Primary Examiner:

Rebecca Lee

Int. Cl.
CPC ...
C22F 1/08 (2006.01); C21D 7/02 (2006.01); C21D 9/52 (2006.01); C22C 9/04 (2006.01); C21D 9/04 (2006.01); B22D 11/00 (2006.01); C22C 30/02 (2006.01); C22C 30/06 (2006.01); C22C 30/04 (2006.01); C22F 1/00 (2006.01); B21C 37/04 (2006.01); B21K 1/44 (2006.01);
U.S. Cl.
CPC ...
C22F 1/08 (2013.01); B22D 11/001 (2013.01); B22D 11/004 (2013.01); B22D 11/005 (2013.01); C21D 7/02 (2013.01); C21D 9/04 (2013.01); C21D 9/52 (2013.01); C22C 9/04 (2013.01); C22C 30/02 (2013.01); C22C 30/04 (2013.01); C22C 30/06 (2013.01); C22F 1/002 (2013.01); B21C 37/04 (2013.01); B21K 1/44 (2013.01);
Abstract

The invention includes a copper-nickel-zinc alloy with the following composition in weight %: Cu 47.0 to 49.0%, Ni 8.0 to 10.0%, Mn 0.2 to 0.6%, Si 0.05 to 0.4%, Pb 1.0 to 1.5%, Fe and/or Co up to 0.8%, the rest being Zn and unavoidable impurities, wherein the total of the Fe content and double the Co content is at least 0.1 weight % and wherein mixing silicides containing nickel, iron and manganese and/or containing nickel, cobalt and manganese are stored as spherical or ellipsoidal particles in a structure consisting of an α- and β-phase. The invention further relates to a method for producing semi-finished products from a copper-nickel-zinc alloy.

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