HWCYL20钨焊接电极的性能  

HWCYL20 Tungsten Welding Electrode Performance

作　　者：庄志刚 

机构地区：[1]厦门钨业股份有限公司 [2]国家钨材料工程技术研究中心

出　　处：《福建冶金》2011年第1期26-29,21,共5页Fujian Metallurgy

摘　　要：通过传统粉末冶金、加工技术制备HWCYL20复合稀土钨合金电极。钨合金中各稀土氧化物的含量分别为0．4wt％La2O3、0．4wt％CeO2和1．2wt％Y2O3。测试了电极的TIG焊接性能，如起弧性能、电极的烧损量和电子选出功，研究了焊接以后电极微观组织变化情况。结果表明，HWCYL20电极的电子选出功为2．76eV，电极烧损量仅为2wt％Th—W电极的50％。HWCYL20 doped with 0.4wt%La2O3, 0.4wt%CeO2 and 1.2wt% Y2O3 respectively, had been made by traditional metal powder processing technology. The TIG welding properties such as arc ignition, electrode consumption, and electronic emission energy have been tested and the mierostructure evolutions after welding have been studied. The results show that the electronic emission energy of HWCYL20 is 2.76eV and the consumption is only about 50% that of the 2wt%ThO2-W electrode.

关 键 词：HWCYL20 钨电极 TIG 稀土 

分 类 号：TG433[金属学及工艺—焊接]