Electroslag welding process

The technological features of electroslag welding, which distinguish it from all other welding processes and have made it the preferred method for jointing heavy plates. Medium alloy steels may be welded satisfactorily with proper post- heat treatment, the high rate of dilution being an advantage. High alloy steels are welded successfully without edge preparation and with the help of proper fluxes to minimize oxidation. Thick sections of titanium are welded with special flux of higher melting point and flushing the slag bath surface with argon.