ELECTROSLAG WELDING
Definition
<ELECTROSLAG WELDING> is <WELDING> in a single-pass process. Once a weld begins, it continues without interruption. The process requires a welding arc only at the beginning of the weld cycle. The arc heats a supply of granular flux and forms a molten slag bath which extinguishes the arc. The electrically-charged slag bath (hence the name electroslag) is resistant to the welding current passing through it. This resistance heats the slag and keeps it molten at a temperature of approximately 3500° F (about 2000° Celcius)