Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第13卷    第3期    总第54期    2003年6月

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文章编号:1004-0609(2003)03-0685-05
纳米相包覆AgC5电触头材料
雷景轩1, 余海峰1, 马学鸣2, 朱丽慧1
陆 尧3, 项 兢3, 翁 桅3

(1.上海大学 材料科学与工程学院, 上海 200072;
2. 华东师范大学 物理系, 上海 200062;
3. 上海电器科学研究所, 上海 200063
)

摘 要: 采用化学镀技术,在高能球磨所得纳米石墨粉上包覆银, 制得纳米晶银/石墨包覆粉体,经冷压、 烧结、 复压工序, 制备了AgC5触头材料。采用此新工艺制备的触头材料与常规工艺制得的相比, 在力学和物理性能等方面有了较大的提高。 分断实验表明: 将纳米技术应用到银/石墨触头材料的制备中, 使材料的抗电弧磨损性能有了较大的改善。

 

关键词: 化学包覆;高能球磨; 纳米石墨;银/石墨触头材料;抗电弧磨损

Fabrication of AgC5 contact material by nano-phase coating
LEI Jing-xuan1, YU Hai-feng1, MA Xue-ming2,
ZHU Li-hui1, LU Yao3, XIANG Jing3, WENG Wei3

1. School of materials science and engineering,
Shanghai University, Shanghai 200072, China;
2. Department of physics, East China Normal University,
Shanghai 200062, China;
3. Shanghai Electrical Apparatus Research Institute,Shanghai 200063, China

Abstract:Using electroless plating, the nanocrystalline graphite powder coated with silver was prepared from nano-graphite obtained by high-energy ball milling. By pressing, sintering and re-pressing, the AgC5 electrical contact material was fabricated. The electrical contact material prepared by the novel process has great improvement in mechanical, physical properties. The make-break test shows that AgC5 contact material fabricated by nano-phase coating possesses good resistance against arc erosion.

 

Key words: chemical coating; high-energy ball milling; nano-graphite; silver/graphite contact material; resistance against arce

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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