Al-Sn预合金粉末及其在金刚石磨具中的应用  

Al-Sn pre-alloyed powders and its application in diamond grinding wheel

作　　者：王双喜[1,2] 刘雪敬 耿林[1] 耿彪 

机构地区：[1]哈尔滨工业大学材料科学与工程学院 [2]佛山市地天泰新材料技术有限公司,佛山528000 [3]佛山市地天泰新材料技术有限公司

出　　处：《中国有色金属学报》2008年第3期471-475,共5页The Chinese Journal of Nonferrous Metals

基　　金：中国博士后科学基金资助项目(2005038520)

摘　　要：通过超声雾化法制备Al-Sn预合金粉末,研究Al-Sn预合金粉末的形貌、热压性能、抗氧化性能及其在铝基金刚石磨轮中的应用情况。结果表明:制备的Al-Sn预合金粉球形度高,与相同组成的单质Al、Sn混合粉末相比,其抗氧化性能提高2.23倍,而热压温度低50℃左右,且热压后组织均匀;预合金粉末有利于制备的铝基金刚石磨轮的成分均匀。The Al-Sn pre-alloyed was prepared by close-coupled gas atomization technique. The morphology, hot press performance, oxidation resistance of Al-Sn pre-alloyed powder and its application in the diamond-grinding wheel was studied. The results show that the Al-Sn pre-alloyed powder is mainly spheroid, and its oxidation resistance is improved by two times compared with the Al and Sn mixed powder. The hot press temperature of the pre-alloyed powder is 50 ℃ lower than the mixed powder with the same composition. The structure of the Al-based diamond grinding wheel is uniform after hot press. The SEM observation shows that the elemental distribution is improved by using Al-Sn pre-alloyed powder.

关 键 词：Al-Sn预合金粉末 金刚石工具 热压性能 

分 类 号：TG74[金属学及工艺—刀具与模具]