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. 05, 2016
Filed:
Aug. 17, 2010
Xiaohua LU, Nanjing, CN;
Yijun Shi, Nanjing, CN;
KE Zhou, Nanjing, CN;
Changsong Wang, Nanjing, CN;
Wenjun Yao, Nanjing, CN;
Xiaohua Lu, Nanjing, CN;
Yijun Shi, Nanjing, CN;
Ke Zhou, Nanjing, CN;
Changsong Wang, Nanjing, CN;
Wenjun Yao, Nanjing, CN;
NANJING TAIWEI TECHNOLOGY CO., LTD., Nanjing, CN;
NANJING UNIVERSITY OF TECHNOLOGY, Nanjing, CN;
Abstract
A preparation method of carbon modified filler is provided. The method is: putting the fillers into the reaction zone of a reactor, starting the first heating-up to 400-500° C. under the protective atmosphere at first, then introducing hydrogen after the heating-up; starting the second heating-up to 600-1200° C. after introducing hydrogen and simultaneously introducing the mixture of hydrogen and carbon source gas, keeping at the terminal temperature for 0.1-5 hours, introducing nitrogen and stopping heating after the reaction, cooling, and then getting the carbon modified filler. The above method can obtain a friction material with good mechanical properties, excellent friction and wear performances, stable friction coefficient at high temperature, good braking force and no heat recession.