采用机械合金化工艺由Cu,Cr元素粉按质量比各半合成CuCr预合金粉,然后采用爆炸烧结工艺制备真空断路器用电触头材料CuCr合金,着重研究了工艺参数对CuCr触头材料性能的影响.结果表明:采用该工艺能制备高密度(超过7.398 g/cm3)、高硬度(超过HB144)和低电导率(低于106 kS/m)的CuCr触头材料;球磨时间对CuCr合金性能影响较大,随着球磨时间的增加,CuCr合金密度和硬度逐渐升高,而电导率则减小;装药密度对CuCr合金的性能影响较小;药粉比或药粉筒比选择得太高或太低都会引起CuCr合金性能的降低.
参考文献
| [1] | 王亚平,张丽娜,杨志懋,丁秉钧,周敬恩.细晶-超细晶CuCr触头材料的研究进展[J].高压电器,1997(02):34. |
| [2] | 周武平.关于CuCr触头材料几个问题的探讨[J].高压电器,1997(05):22. |
| [3] | 严群,杨志懋,王秉钧,王笑天.真空触头材料显微组织对饱和蒸气压及截流值的影响[J].高压电器,1995(06):28. |
| [4] | 董明.粉末材料的爆炸烧结[J].材料开发与应用,1995(03):29. |
| [5] | 杨扬;张新明;李正华 et al.爆炸复合的研究现状和发展趋势[J].材料导报,1995,9(01):72-76. |
| [6] | X. S. Huang;T. Mashimo .Preparation of Fe-W system metastable alloy bulk body by mechanical alloying and shock compression[J].Journal of Materials Processing Technology,1999(1/3):135-137. |
| [7] | 李金平,罗守靖,龚朝晖,胡伟晔,牛玮.CuCr机械合金化工艺的研究[J].兵器材料科学与工程,2000(06):37-42. |
| [8] | Hoening C L;Yust C S .Explosive compaction of AlN,amorphous Si3N4,boron,and Al2O3 ceramics[J].Ceramic Bulletin,1981,60(11):1175-1224. |
| [9] | Peng T C;Sastry S M L;O'Neal J E .Explosive consolidation of rapidified aluminum alloy powders[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1985,16(08):1445-1455. |
| [10] | Mamalis A G;Gioftsidis G N .Fracture patterns in explosively compacted copper/graphite powders rods[J].Journal of Mechanical Working and Technology,1989,19:239-249. |
| [11] | Morris D G;Morris M A .Rapid solidification and mechanical alloying techniques applied to CuCr alloys[J].Materials Science and Engineering,1988,A104:201-213. |
| [12] | Prümmer R .Explosive compaction of powders,principle and prospects[J].Mat Wiss U Werkstofftech,1989,20:410-415. |
| [13] | 陈宪文;翁世耀;程玉书.Electrical Engineering Materials (电工器材)[M].北京:中国铁道出版社,1983:101-106. |
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