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:
Oct. 08, 2019
Filed:
Mar. 13, 2019
Applicants:
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Inventors:
Min Gyun Chung, Yongin-si, KR;
Yoon Cheol Kim, Suwon-si, KR;
Yoon Joo Rhee, Suwon-si, KR;
Byung Chan Lee, Suwon-si, KR;
Jae Young Lee, Yongin-si, KR;
Assignees:
HYUNDAI MOTOR COMPANY, Seoul, JP;
KIA MOTORS CORPORATION, Seoul, JP;
Primary Examiner:
Int. Cl.
CPC ...
C23C 8/26 (2006.01); F16D 65/12 (2006.01); C23C 8/02 (2006.01); C22C 37/10 (2006.01);
U.S. Cl.
CPC ...
F16D 65/125 (2013.01); C22C 37/10 (2013.01); C23C 8/02 (2013.01); C23C 8/26 (2013.01); F16D 2200/0013 (2013.01); F16D 2250/0007 (2013.01); F16D 2250/0046 (2013.01); F16D 2250/0053 (2013.01);
Abstract
A method of manufacturing a brake disk made of gray cast iron is disclosed. The method includes casting a disk body using gray cast iron containing 3.1 wt % to 3.7 wt % of C; machining a surface of the cast disk body; nitriding the disk body by exposing the machined surface to a temperature in the range of 540° C. to 580° C. for 50 min to 70 min, and coating the nitrided disk body.