US 11,852,209 B2
Fiber-reinforced copper-based brake pad for high-speed railway train, and preparation and friction braking performance thereof
Lin Zhang, Beijing (CN); Xuanhui Qu, Beijing (CN); Peng Zhang, Beijing (CN); Peifang Wu, Beijing (CN); Mingli Qin, Beijing (CN); Cairang Shijia, Beijing (CN); Jingwu Cao, Beijing (CN); and Kangxi Fu, Beijing (CN)
Assigned to UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing (CN); and BEIJING TIANYISHANGJIA NEW MATERIAL CORP., LTD., Beijing (CN)
Filed by UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING, Beijing (CN); and BEIJING TIANYISHANGJIA NEW MATERIAL CORP., LTD., Beijing (CN)
Filed on Feb. 18, 2020, as Appl. No. 16/793,938.
Application 16/793,938 is a continuation of application No. PCT/CN2018/123565, filed on Dec. 25, 2018.
Claims priority of application No. 201811480283.9 (CN), filed on Dec. 5, 2018.
Prior Publication US 2020/0208701 A1, Jul. 2, 2020
Int. Cl. F16D 69/02 (2006.01); B22F 3/16 (2006.01); B22F 7/00 (2006.01); C22C 47/14 (2006.01); C22C 49/02 (2006.01); C22C 49/14 (2006.01); F16D 65/092 (2006.01); G01N 19/02 (2006.01); B22F 1/10 (2022.01)
CPC F16D 69/028 (2013.01) [B22F 1/10 (2022.01); B22F 1/108 (2022.01); B22F 3/16 (2013.01); B22F 7/008 (2013.01); C22C 47/14 (2013.01); C22C 49/02 (2013.01); C22C 49/14 (2013.01); F16D 65/092 (2013.01); G01N 19/02 (2013.01); B22F 2301/10 (2013.01); B22F 2302/40 (2013.01); B22F 2304/10 (2013.01); F16D 2200/0008 (2013.01); F16D 2200/0026 (2013.01); F16D 2200/0052 (2013.01); F16D 2200/0065 (2013.01)] 19 Claims
 
1. A fiber-reinforced copper-based powder metallurgy brake pad for high-speed railway train, wherein the composition of the copper-based powder metallurgy brake pad comprises metal powder, non-metal powder and a fiber component;
the weight percentage of the metal powder is 80-98.5%;
the weight percentage of the non-metal powder is 1-20%; and the weight percentage of the fiber component is 0.5-5%;
wherein the weight percentages of the components of the metal powder are as follows: copper powder: 45-65%; iron powder: 15-30%; anatase titanium dioxide powder: 1-10%; molybdenum disulfide powder: 1-5%; chromium powder: 1-10%; high carbon ferrochrome powder: 1-10%; the particle size of the copper powder is 48-75 μm; the particle size of the iron powder is 45-150 μm; the particle size of the titanium oxide powder is less than 10 μm, the particle size of the molybdenum disulfide powder is 45-150 μm; the particle size of the chromium powder is 10-48 μm; and the particle size of the high carbon ferrochrome powder is 10-48 μm.