接触面积对H62/T2弹性接触载流摩擦副性能的影响

doi:10.11896/cldb.23030298

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Abstract Aiming at the problem that the influence of contact conditions on the performance of electrical connectors under the contact hot-swap plug condition was unclear, the H62 wire/T2 plate elastic contact friction pair was used to carry out reciprocating sliding current-carrying friction experiments on the micro-sliding friction testing machine, and the influence of contact area on the friction and wear performance of H62/T2 current-carr-ying was studied. The experimental results show that under the condition of a given current of 2 A, 4 A and 6 A, with the increase of contact area, the friction coefficient stability parameter ε decreases, that is, the stability of the friction process increases, and the average friction coefficient and wear volume show an increasing trend. Under the condition of current of 2 A, when the arc radius increases from 1.5 mm to 5.5 mm, the current fluctuation decrease, the current carrying stability increase, and the current carrying efficiency increases from 98.26% to 99.73%. The wear of the friction pair presents the form of abrasive wear, adhesive wear and arc erosion coexisting and coupling, with the increase of contact area, arc erosion decreases, and mechanical wear is intensified by furrow and adhesion.

Key words： current-carrying friction contact area electrical connection contact failure

Published: 25 August 2024 Online: 2024-09-10

CLC number:

TH117.1

Fund:National Natural Science Foundation of China (U1804252,U1730130),the Key Scientific Research Project of Henan Province (22A430021).

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	Articles by authors
	JIAO Jinlong
	YANG Zhenghai
	SHI Xuefei
	SONG Yingjian
	LI Wenbo
	SUN Lemin

Cite this article:

JIAO Jinlong,YANG Zhenghai,SHI Xuefei, et al. Effect of Contact Area on the Properties of H62/T2 Elastic Contact Current-carrying Friction Pair[J]. Materials Reports, 2024, 38(16): 23030298-5.

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http://www.mater-rep.com/EN/10.11896/cldb.23030298 OR http://www.mater-rep.com/EN/Y2024/V38/I16/23030298

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