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:
Dec. 23, 2025
Filed:
May. 18, 2023
Shandong University of Technology, Shandong, CN;
Tianrun Industry Technology Co., Ltd., Shandong, CN;
Shandong Tianrun Zhongcheng Additive Manufacturing Co., Ltd., Shandong, CN;
Jun Sun, Shandong, CN;
Jianchen Cong, Shandong, CN;
Yongming Guo, Shandong, CN;
Shibo Shao, Shandong, CN;
Yangfan Zhou, Shandong, CN;
Peixiang Ni, Shandong, CN;
SHANDONG UNIVERSITY OF TECHNOLOGY, Shandong, CN;
TIANRUN INDUSTRY TECHNOLOGY CO., LTD., Shandong, CN;
SHANDONG TIANRUN ZHONGCHENG ADDITIVE MANUFACTURING CO., LTD., Shandong, CN;
Abstract
The invention provides a method for increasing wear resistance of a surface of a crankshaft, including: dividing a journal of a crankshaft into a journal coating portion and two journal grinding portions located on two sides of the journal coating portion; the surface of the journal grinding portion is higher than that of the journal coating portion, and higher than the surface of the journal of a finished crankshaft, the surface of the rounded corner of the crankshaft is higher than that of the rounded corner of the finished crankshaft, and the size of the journal coating portion is smaller than that of the journal of the finished crankshaft; and spraying a ceramic coating on the surface of the journal coating portion, grinding the surfaces of the journal and the rounded corner until the ceramic coating and the surface of the rounded corner are seamlessly joined, and performing polishing.