钨极氩弧(TIG)焊和等离子弧焊接的质量与电极形状及加工精度具有密切的关系。生产经验表明,为了使电弧集中,燃烧稳定,钨极末端一般要磨成平底锥形。对锥角大小也有一定的要求。以前人们磨削钨极,一般都是由人工操作,加工精度低,即锥度大小及同心度均难以保证。同时磨削钍 TIG welding (TIG) and plasma arc welding quality and electrode shape and processing accuracy are closely related. Production experience shows that, in order to focus the arc, combustion stability, tungsten tip generally be ground into a flat-bottomed cone. The cone angle size also has certain requirements. People used to grind tungsten, are generally operated by hand, low precision, that taper size and concentricity are difficult to guarantee. Thorium while grinding