低树脂基NAO型盘式刹车片摩擦材料的制备及摩擦学性能

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Abstract This paper introduces a new type of NAO disc friction material with low resin content by hot pressing process. The samples were characterized by Rockwell hardness tester (HRS), constant speed friction tester, dynamometer test machine and scanning electron microscope (SEM) for the purpose of studying the friction and wear properties of the friction material. The constant-speed friction test results show that the fade and recovery friction coefficient of the friction material is maintained at about 0.40. The fade rate is -5.13% and the recovery rate is 110.25%. The material has an excellent performance in the fade resistance and recovery property aspects,and has a lower wear rate. It is exceptional in tribological performance. The SEM observation found that the friction material was the result of the combined action of adhesion wear, cutting wear and abrasive wear during the braking friction process. The dynamometer test further showed that the normal friction characteristic value (μ_nom) of this material was 0.404. It has good speed sensitivity, temperature and pressure sensitivity, good anti-decay performance and excellent braking perfor-mance under different working conditions. It is an ideal brake pads friction material.

Key words： brake pads resin-based friction material frictional wear dynamometer test

Published: 01 July 2020

CLC number:

TH117.1

Fund:This work was financially supported by Guangdong Science and Technology Plan Project (2017B090901035, 2016B090918088), Guangzhou Science and Technology Plan Project (201807010012, 201704030015) and Qingyuan Provincial Science and Technology Special Fund for 2019 (“Major special project+Task list” management mode) Project (2019DZX025).

About author:: Wenhao Huang, is studying at Guangdong University of Technology as a master of Material Engineering. The main research direction is the composition design and friction and wear properties of resin-based NAO type disc brake pads ; Pingjun Tao, works as a professor, doctor, and master tutor at the School of Materials and Energy, Guangdong University of Technology. He is the object of the “Thousand Hundred and Ten Projects” of Guangdong Higher Education Institutions, the Guangdong Science and Technology Plan Project Evaluation Expert, and the member of the Guangdong Materials Research Society and the Guangzhou Doctoral Club. He graduated from Dalian Jiaotong University in July 2002 with a bachelor degree in welding ; From July 2002 to September 2004, he worked for China National Automobile Group Changchun Railway Co., Ltd. Pingjun Tao ob- tained his doctor degree from Guangdong University of Technology (GDUT) majoring in materials science and served in School of Materials of Energy and Engineering, GDUT till now. He is mainly engaged in research work on new nano-amorphous functional materials, advanced metal materials, magnetic functional materials and devices. Several projects have been presided including the National Natural Science Foundation of China, the Doctoral Program Fund of the Ministry of Education, the Natural Science Foundation of Guangdong Province, and the Science and Technology Plan of Guangdong Province and Guangzhou City. He has published more than 50 academic papers, including 25 papers in SCI and more than 30 papers in EI ; 2 authorized national invention patents and 2 utility model patents.

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	HUANG Wenhao
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	LONG Dewu
	ZHANG Chaohan
	ZHU Kunsen
	YANG Yuanzheng

Cite this article:

HUANG Wenhao,TAO Pingjun,LONG Dewu, et al. Preparation and Tribological Properties of Low Resin-based NAO Disc BrakePads Friction Material[J]. Materials Reports, 2020, 34(Z1): 563-566.

URL:

http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2020/V34/IZ1/563