wl20 tungsten electrode

compared with pure tungsten material,tungsten,thorium has the following characteristics: lower elecreonic functions, better in the higher crystallization temperature,conductivity mechanical cutting performance tungsten thorium electrode commonly usd for tungsten electrode material ,it has even superior than that of pure tungsten welding performance,which is widely used in the field of DC welding. tungsten thorium  electrode easy to operate,even if the operation of the overload current good.there are still many companies use this material,it is seen an part of the high quality welding. neverthless,people still gradually look to other types of tungsten electrode,such as tungsten cerium and tungsten,lanthanum,this is not just because they are in most  application show superior performance,but also important is that they do not have radiation injury.thoria in tungsten thorium electrode to produce small amounts of radiation ,part of the welding personnel are reluctant to close them.