纯氧氛围下Ag-Sn-In合金粉末压坯烧结工艺  

Sintering Process of Ag-Sn-In Alloy Billet in Pure Oxygen Atmosphere

作　　者：高攀[1] 刘心宇[1] 李波[2] Gao Pan Liu Xinyu Li Bo(Guilin University of Electronic Technology, Guilin 541004, China Guilin Electrical Equipment Scientific Research Institute, Guilin 541004, China)

机构地区：[1]桂林电子科技大学,广西桂林541004 [2]桂林电器科学研究院有限公司,广西桂林541004

出　　处：《稀有金属材料与工程》2017年第9期2623-2627,共5页Rare Metal Materials and Engineering

基　　金：广西科技攻关项目(桂科攻14122007-29)

摘　　要：采用雾化法制备Ag-Sn-In合金粉末,通过讨论工艺参数(烧结温度、烧结保温时间、压坯压力)对AgSnO_2电触头材料性能的影响,确定合理实验参数:压坯压力为200MPa,烧结温度为950℃,烧结保温时间为10h。对比纯氧氛围下烧结和传统烧结工艺的材料性能和显微组织,发现纯氧氛围下更有利于高温烧结,提高了烧结效率,改善烧结坯的烧结组织,提高了材料性能。Ag-Sn-In alloy powders were prepared by atomization. The effect of the process parameters（sintering temperature,sintering time,compacting pressure） on the mechanical properties of AgSnO_2 electric contact materials was investigated. Results show that the reasonable processing parameters are confirmed as the optimal sintering temperature 950 °C,sintering time 10 h and compacting pressure 200 MPa. By comparing properties and micro-structures of AgSnO_2 electric contact materials prepared by the pure oxygen atmosphere sintering process and the traditional sintering process,we find that pure oxygen atmosphere is conducive to the high temperature sintering,which increases the sintering efficiency and eventually improves the micro-structure and performance of AgSnO_2 electric contact materials.

关 键 词：Ag-Sn-In合金 烧结工艺 电触头材料 

分 类 号：TF123.23[冶金工程—粉末冶金]