(1. 清華大學(xué) 機(jī)械工程系 先進(jìn)成形制造教育部重點(diǎn)實(shí)驗(yàn)室，北京 100084；
2. 博世汽車部件(長(zhǎng)沙)有限公司，長(zhǎng)沙 410100)
摘 要: 自行設(shè)計(jì)了結(jié)構(gòu)簡(jiǎn)單、操作方便的電磁開關(guān)觸頭材料抗熔焊性能模擬試驗(yàn)機(jī)。通過(guò)該試驗(yàn)機(jī)，研究純銅、典型銅合金、銅基復(fù)合材料的抗熔焊性能。結(jié)果表明：相對(duì)于純銅觸頭材料，碲銅合金、鎢銅復(fù)合材料均有較優(yōu)異的抗熔焊性能；從降低熔焊觸頭融焊力的角度考慮，觸頭材料的抗熔焊性能與觸頭閉合時(shí)熔焊區(qū)域是否容易形成焊接缺陷有關(guān)。研究結(jié)果對(duì)改善電磁開關(guān)觸頭抗熔焊性能具有重要參考意義。
關(guān)鍵字: 銅基材料；電磁開關(guān)；觸頭；抗熔焊性能
（1. Key Laboratory for Advanced Materials Processing Technology, Ministry of Education,
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China;
2. Bosch Automotive Products (Changsha) Co., Ltd., Changsha 410100, China）
Abstract:A simulation device of solenoid switch with simple structure and easy operation, was developed to test the anti-welding performance of pure copper, typical copper alloys and copper-based materials. The results show that CuTe alloy and CuW30 composites have better anti-welding performance than pure copper. From the view of decreasing welding force, the anti-welding performances of different copper-based materials are related to the formation of welding defects in the welding zone when the contacts are connected. The results are beneficial to improving the anti-welding performance of electrical contacts in solenoid switch.
Key words: copper-based materials; solenoid switch; electrical contacts; anti-welding performance
