直流条件下不同银氧化锡电接触材料电性能研究  

Study on Electrical Properties of Different Silver Tin Oxide Electrical Contact Materials Under DC Conditions

作　　者：李杰 金扬灯 颜小芳 柏小平 陈杨方 游义博 刘映飞 马四平 LI Jie;JIN Yangdeng;YAN Xiaofang;BAI Xiaoping;CHEN Yangfang;YOU Yibo;LIU Yingfei;MA Siping(Zhejiang Fuda Alloy Material Technology Co.,Ltd.,Wenzhou 325025,China)

机构地区：[1]浙江福达合金材料科技有限公司,浙江温州325025

出　　处：《电器与能效管理技术》2023年第7期25-29,共5页Electrical & Energy Management Technology

摘　　要：采用合金内氧化法制备了不同AgSnO_(2)In_(2)O_(3)材料及铆钉,在DC 13.5 V/25 A、阻性负载条件下进行模拟电性能试验。比较了3种丝材的力学性能与显微组织,研究了不同AgSnO_(2)In_(2)O_(3)材料的电性能影响作用机理。得出结论:随着Sb_(2)O_(3)含量的增加,丝材密度、硬度、抗拉强度呈现出逐渐降低的趋势;当Sb_(2)O_(3)含量较低时,以材料转移机理为主,随着Sb_(2)O_(3)含量的增加,触点以消耗机理为主;当Sb_(2)O_(3)含量为1%时,抗熔焊性能最优;适量的Sb_(2)O_(3)通过增加熔桥的脆性从而提高触点材料的抗熔焊性能。Different AgSnO_(2)In_(2)O_(3) materials and rivets were prepared by alloy internal oxidation method.Besides,the simulated electrical properties were carried out under the conditions of DC 13.5 V,25 A and resistive load.The mechanical properties and microstructure of three kinds of wires were compared and the influence mechanism on electrical properties of different AgSnO_(2)In_(2)O_(3) materials was studied.It is concluded that with the increase of Sb_(2)O_(3) content,the density,hardness and tensile strength of wires showed a gradual decreasing trend.When Sb_(2)O_(3) content was low,the mechanism of material transfer was the main mechanism.As the increase of Sb_(2)O_(3) content,the contact mechanism was mainly consumption.When Sb_(2)O_(3) was 1%,the anti-welding resistance was the best.An appropriate amount of Sb_(2)O_(3) could improve the anti-welding resistance of contact materials by increasing the brittleness of the melting bridge.

关 键 词：银氧化锡氧化铟 电性能 烧损机理 直流 

分 类 号：TM504[电气工程—电器]