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:
Aug. 23, 2016
Filed:
Aug. 29, 2013
Applicant:
Akebono Brake Industry Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
AKEBONO BRAKE INDUSTRY CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 8/00 (2006.01); C23C 22/00 (2006.01); F16D 65/12 (2006.01); C23C 8/30 (2006.01); C23C 8/32 (2006.01); C23C 8/80 (2006.01); F16D 65/10 (2006.01);
U.S. Cl.
CPC ...
F16D 65/127 (2013.01); C23C 8/30 (2013.01); C23C 8/32 (2013.01); C23C 8/80 (2013.01); F16D 65/10 (2013.01); F16D 65/12 (2013.01); F16D 2200/0013 (2013.01); F16D 2250/0053 (2013.01);
Abstract
A cast-iron friction member is manufactured by: performing a nitrocarburizing treatment on a cast workpiece at a treatment temperature of 500° C. to 600° C. to thus form a nitrogen compound layer on a surface of the workpiece; and exposing the workpiece to an atmosphere when a temperature becomes 400° C. to 480° C. after the nitrocarburizing treatment so as to cool the workpiece to a room temperature while keeping a contact state with oxygen to thus form an iron oxide layer including FeOon a surface of the nitrogen compound layer.