矿用卡车离合器用锌钨合金增强铜基粉末冶金摩擦材料的摩擦磨损性能

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Abstract The copper baseed friction materials for mine truck clutch were prepared by adding Zn-W alloy into the existing copper base powder metallurgy friction material formulation, with different Zn-W alloy content and different pressing density. The microstructure and friction and wear properties of the materials were analyzed and tested, and the incremental energy/power level test and bench test were carried out. The results show that the surface hardness of Cu based friction materials decreases with the increase of Zn-W alloy content and increases with the increase of density. The friction coefficient increases with the increase of Zn-W alloy content and decreases with the increase of density. The copper based friction plate with mass fraction of 6%Zn-W alloy and 10% higher density has suitable surface hardness, dynamic/static friction coefficient and good wear resistance, and can reduce the noise, vibration and acoustic vibration roughness of automobile. Compared with the friction plate without Zn-W alloy, the energy output of the friction plate can be increased by two levels, and the sixth level energy output (753.16 J/cm²) can be sustained. The main performance of the friction plate is slightly higher than that of the imported copper based friction plate.

Key words： Zn-W alloy density copper-based friction material friction property bench test

Received: 26 July 2020 Published: 18 January 2021

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	XIE Maoqing
	WANG Leigang
	PENG Peng
	YANG Guosheng
	ZHANG Jiahao

Cite this article:

XIE Maoqing,WANG Leigang,PENG Peng, et al. Friction and wear properties of PM Zn-W alloy reinforcing copper-based friction material for mining truck clutches[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(5): 440-448.

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http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2020/V25/I5/440

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