Ag-SnO_2触头材料制备工艺的研究现状与发展趋势

Preparation process research status and development trend of Ag-SnO_2 electrical contact materials

结合当前银基触头材料制备的研究现状,介绍了Ag-SnO2触头材料的传统制备方法——合金内氧化法和粉末冶金法,分析了各种新技术在传统制备工艺中的应用。综述了近年来国内外Ag-SnO2触头材料的新型制备工艺,对比讨论了各种制备方法的优缺点,并在现有制备技术的基础上,展望了Ag-SnO2触头材料制备的发展趋势。

Combined with the recent research status of the preparation of silver based contact materials, the traditional preparation methods of Ag-SnO2 electric contact materials are introduced, such as internal oxidizing alloy powder and powder metallurgy. The application of new technologies in the traditional preparation process are analyzed. Domestic and foreign new preparation methods of silver based contact materials in recent years are summarized. The advantages and disadvantages of these preparation methods are compared and discussed. Finally, on the basis of the existing preparation techniques, the development trend of the preparation technologies of Ag-SnO2 electric contact materials is prospected.