电弧焊是指采用电孤对两个金属进行加热,通过熔化和再结晶,在金属界面产生局部熔合区的一组联接方法。 电弧焊要求在电极和焊件之间引燃低电压高电流的电弧。电弧产生高热(通常为5000℃,900°F),使母材表面几乎即刻熔化。通常,电极分为熔化电极和不熔化电极两种。当熔化电极熔化时,电极端部很快形成细小 Arc welding refers to the use of a pair of arcs to heat two metals through melting and recrystallization to create localized fusion zones at the metal interface. Arc welding requires that a low-voltage, high-current arc be ignited between the electrode and the weldment. Electric arcs generate high heat (typically 5000 ° C, 900 ° F), causing the base metal surface to melt almost immediately. Usually, the electrode is divided into two kinds of melting electrode and not melting electrode. When the melting electrode melts, the electrode tip quickly fines