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Title:
ELASTIC ELECTRICAL CONTACT COMPOSITE MATERIAL FOR REPLACING BERYLLIUM COPPER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/091483
Kind Code:
A1
Abstract:
Disclosed is a method for preparing an elastic electrical contact composite material. The preparation method comprises: compounding and rolling a stainless steel strip and a Cu strip to prepare a stainless steel (1)/Cu (2) two-layer or stainless steel (1)/Cu (2)/stainless steel (1) three-layer composite strip; performing diffusion heat treatment on the stainless steel (1)/Cu (2) two-layer or stainless steel (1)/Cu (2)/stainless steel (1) three-layer composite strip; performing cyclic treatment on the heat-treated composite strip multiple times; withdrawing and straightening the heat-treated composite material strip; cleaning the withdrawn and straightened composite strip in phases and then slitting same; and punching the slitted composite strip to obtain the desired elastic electrical contact material. With the preparation method by combining phased heat treatment and multiple cyclic treatments, an environment-friendly elastic electrical contact composite material with a high strength, a high elasticity and a low resistivity can be prepared; and the process is simple, the cost is low, and there is no special requirement for a device.

Inventors:
FEI, Lingjuan (No.5600, Oujin Avenue Oujiangkou Industry Cluste, Wenzhou Zhejiang 6, 325026, CN)
ZHANG, Zhoulei (No.5600, Oujin Avenue Oujiangkou Industry Cluste, Wenzhou Zhejiang 6, 325026, CN)
WU, Xinhe (No.5600, Oujin Avenue Oujiangkou Industry Cluste, Wenzhou Zhejiang 6, 325026, CN)
MU, Chengfa (No.5600, Oujin Avenue Oujiangkou Industry Cluste, Wenzhou Zhejiang 6, 325026, CN)
ZHANG, Yuxing (No.5600, Oujin Avenue Oujiangkou Industry Cluste, Wenzhou Zhejiang 6, 325026, CN)
CHEN, Jiafan (No.5600, Oujin Avenue Oujiangkou Industry Cluste, Wenzhou Zhejiang 6, 325026, CN)
Application Number:
CN2018/115144
Publication Date:
May 16, 2019
Filing Date:
November 13, 2018
Export Citation:
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Assignee:
WENZHOU HONGFENG ELECTRICAL ALLOY CO., LTD (No.5600, Oujin Avenue Oujiangkou Industry Cluste, Wenzhou Zhejiang 6, 325026, CN)
International Classes:
B32B15/01; B21B1/38; B32B15/18
Foreign References:
CN107813558A2018-03-20
CN102794300A2012-11-28
CN105489410A2016-04-13
JP2003266102A2003-09-24
Attorney, Agent or Firm:
SHANGHAI HENGHUI INTELLECTUAL PROPERTY AGENCY (1F No.322, Lane 953 Jianchuan Road,Minhang, Shanghai 0, 200230, CN)
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