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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 10233517 B1

PDFFull Text
Date of Patent:
Mar. 19, 2019

Filed:

Feb. 20, 2015

Copper alloy sheet strip with surface coating layer excellent in heat resistance

Applicant:

Kobe Steel, Ltd., Kobe-shi, JP;

Inventors:

Masahiro Tsuru, Shimonoseki, JP;

Shinya Katsura, Shimonoseki, JP;

Assignee:

Kobe Steel, Ltd., Kobe-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

David Sample

Assistant Examiner:

Mary I Omori

Int. Cl.
CPC ...
B32B 15/01 (2006.01); C22C 9/06 (2006.01); C25D 7/00 (2006.01); C22C 9/02 (2006.01); C22C 9/04 (2006.01); C22C 9/05 (2006.01); C22C 9/10 (2006.01); C22F 1/08 (2006.01); C25D 5/10 (2006.01); C25D 5/50 (2006.01); B32B 15/04 (2006.01); B32B 15/20 (2006.01); C23F 17/00 (2006.01); C25D 3/12 (2006.01); C25D 3/30 (2006.01); C25D 3/38 (2006.01); C25D 5/12 (2006.01); C25D 17/00 (2006.01);
U.S. Cl.
CPC ...
C22C 9/06 (2013.01); B32B 15/01 (2013.01); B32B 15/043 (2013.01); B32B 15/20 (2013.01); C22C 9/02 (2013.01); C22C 9/04 (2013.01); C22C 9/05 (2013.01); C22C 9/10 (2013.01); C22F 1/08 (2013.01); C23F 17/00 (2013.01); C25D 3/12 (2013.01); C25D 3/30 (2013.01); C25D 3/38 (2013.01); C25D 5/10 (2013.01); C25D 5/12 (2013.01); C25D 5/505 (2013.01); C25D 7/00 (2013.01); C25D 17/00 (2013.01);
Abstract

A copper alloy sheet strip with a surface coating layer, including: a copper alloy sheet strip, as a base material, including copper, 1.0 to 4.5% by mass of Ni and/or Co and 0.2 to 1.0% by mass of Si, based on the total amount of the copper alloy sheet strip; and a surface coating layer including a Ni layer, a Cu—Sn alloy layer and a Sn layer formed on a surface of the copper alloy sheet strip in this order. A Cu—Sn alloy layer is partially exposed on an outermost surface of the surface coating layer such that a surface exposed area ratio is from 3 to 75%. A surface roughness of the surface coating layer is 0.15 μm or more in at least one direction, and 3.0 μm or less in all directions.

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