粉末冶金制备高压隔离开关触头材料的可行性研究

doi:10.11930/j.issn.1004-9649.201907019

中国电力 ›› 2020, Vol. 53 ›› Issue (2): 129-136.DOI: 10.11930/j.issn.1004-9649.201907019

粉末冶金制备高压隔离开关触头材料的可行性研究

张秀丽¹, 杨志远², 彭波¹, 王应高¹, 陈存广³, 马光⁴, 陈云翔⁵

1. 国网冀北电力科学研究院, 北京 100045;
2. 华北电力大学, 河北保定 071003;
3. 北京科技大学, 北京 100083;
4. 全球能源互联网研究院, 北京 102211;
5. 国网福建电力科学研究院, 福建福州 350007

收稿日期:2019-07-02 修回日期:2019-09-01 出版日期:2020-02-05 发布日期:2020-02-05
作者简介:张秀丽(1963-),女,博士,高级工程师(教授级),从事金属腐蚀与防护研究,E-mail:zhangxiulili@sina.com
基金资助:
国家电网有限公司总部科技项目（高温沿海工业环境下变电站设备导体材料腐蚀防护技术研究，520101180011）

Feasibility Study on the Preparation of Contact Materials of High-Voltage Disconnector by Powder Metallurgy

ZHANG Xiuli¹, YANG Zhiyuan², PENG Bo¹, WANG Yinggao¹, CHEN Cunguang³, MA Guang⁴, CHEN Yunxiang⁵

1. State Grid Jibei Electric Power Research Institute, Beijing 100045, China;
2. North China Electric Power University, Baoding 071003, China;
3. University of Science and Technology Beijing, Beijing 100083, China;
4. Global Energy Interconnection Research Institute Co., Ltd., Beijing 102211, China;
5. State Grid Fujian Electric Power Research Institute, Fuzhou 350007, China

Received:2019-07-02 Revised:2019-09-01 Online:2020-02-05 Published:2020-02-05
Supported by:
This work is supported by the Science and Technology Project of SGCC (Corrosion and Protection Technology for Conductive Materials Used in Transformer Substations in a High-Temperature Coastal and Industrial Environment, No.520101180011)

摘要/Abstract

摘要： 采用粉末冶金法制备了基体材料为纯铜、表面覆银的高压隔离开关触头材料。通过对触头表面粉末冶金覆银层和电镀银层的耐蚀性、耐硫性、附着强度和表面硬度对比实验，分析研究了应用粉末冶金技术制备高压隔离开关触头材料的可行性。实验结果表明，粉末冶金法制备的覆银层与基体铜的界面结合紧密且无明显缺陷，附着强度符合GB/T 5270—2005的要求，粉末冶金覆银层的耐蚀性接近电镀银层的耐蚀性，耐硫性与电镀银层的耐硫性基本相当，但表面硬度明显高于电镀银层，对提高其耐磨性具有一定的促进作用。研究表明，粉末冶金技术制备高压开关触头的方法理论上是可行的，但实际应用还需要进一步的工程应用研究。

关键词: 高压隔离开关, 银层, 粉末冶金, 触头材料性能

Abstract: In this paper, the contact materials with copper substrate covered by silver coating is fabricated for high-voltage disconnector by adopting powder metallurgy (PM) techniques. Through comparative tests on the performance of electroplated silver coating and the PM silver-coated layer in terms of corrosion and sulfur resistance, adhesion strength and micro-Vickers hardness, the feasibilities of using PM techniques to produce contact materials are studied. The test results indicate that the interface between the silver-coated layer and the copper matrix is tightly coupled without any noticeable defects and the adhesion strength meets the requirements of GB/T 5270—2005. The corrosion resistance of the PM silver-coated layer is close to that of the electroplated silver layer while the sulfur tolerance of the PM silver-coated layer is basically identical to the electroplated silver coating, but the surface hardness of the PM silver-coated layer is significantly higher than that of the electroplated silver layer, which is helpful to improve the wear resistance to some extent. The research in this paper shows that the method of powder metallurgy technology to produce high-voltage switch contacts is feasible theoretically, but to further promote practical applications, more research on engineering applications should be carried out.

Key words: high-voltage disconnector, silver coating, powder metallurgy, contact material property

张秀丽, 杨志远, 彭波, 王应高, 陈存广, 马光, 陈云翔. 粉末冶金制备高压隔离开关触头材料的可行性研究[J]. 中国电力, 2020, 53(2): 129-136.

ZHANG Xiuli, YANG Zhiyuan, PENG Bo, WANG Yinggao, CHEN Cunguang, MA Guang, CHEN Yunxiang. Feasibility Study on the Preparation of Contact Materials of High-Voltage Disconnector by Powder Metallurgy[J]. Electric Power, 2020, 53(2): 129-136.

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https://www.electricpower.com.cn/CN/Y2020/V53/I2/129

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粉末冶金制备高压隔离开关触头材料的可行性研究

Feasibility Study on the Preparation of Contact Materials of High-Voltage Disconnector by Powder Metallurgy

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粉末冶金制备高压隔离开关触头材料的可行性研究

Feasibility Study on the Preparation of Contact Materials of High-Voltage Disconnector by Powder Metallurgy

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