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:
Jul. 08, 2014
Filed:
Sep. 13, 2012
Jae Young Lee, Gyeonggi-do, KR;
Seong Jin Kim, Gyeonggi-do, KR;
Jai Min Han, Gyeonggi-do, KR;
Yoon Cheol Kim, Gyeonggi-do, KR;
Hyun Dal Park, Gyeonggi-do, KR;
Jae Young Lee, Gyeonggi-do, KR;
Seong Jin Kim, Gyeonggi-do, KR;
Jai Min Han, Gyeonggi-do, KR;
Yoon Cheol Kim, Gyeonggi-do, KR;
Hyun Dal Park, Gyeonggi-do, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
Disclosed is a plasma nitriding surface treatment method for a gray cast iron part. In the plasma nitriding surface treatment method, a nitride layer is formed on a surface of the gray cast iron part by a selective ion nitriding treatment. The plasma nitriding surface treatment method is carried out such that the surface of the gray cast iron part is prevented from being deformed, and a reduction of the frictional coefficient of the part is prevented.