Combined Tungsten Electrode

Combined Tungsten Electrode is the tungsten material with two or more rare earth oxide additived. Every additive works to the benefit of others and serves as a complement at the same time to make its welding performance more outstanding. But in AC hydrogen arc welding, there still exists shortcomings such as poor arc initiation ,short service life etc.In general, the arc characteristics of compound rare-earth tungsten electrode are better then the unit rare earth tungsten electrode ,also in the compound rare-earth tungsten electrode,the tri-compound is superior to the binary .Multivariate composite rare earth tungsten electrode is considered to be the best material to substitute the thorium-tungsten electrode .