Method of electroslag welding with a plate electrode

摘要

PCT No. PCT/SU79/00032 Sec. 371 Date Jan. 29, 1981 Sec. 102(e) Date Dec. 23, 1980 PCT Filed May 29, 1979 PCT Pub. No. WO80/02664 PCT Pub. Date Dec. 11, 1980.A method of electroslag welding and a flux used in the welding process are intended for welding heavy leads of electric installations, particularly busbars of electrolyzers used in non-ferrous metallurgy and chemical industry where intense magnetic fields act. The method consists in the component parts to be welded being brought together to form a gap therebetween such that the area "B" of the gap relates to the area "A" of the horizontal cross-section of the welding electrode and to the area "C" of the projection of the surface of the welding bath to the horizontal plane as A:B:C=1:(1.2 to 1.5):(2.5 to 4.5). The flux used in the welding process and comprising lithium fluoride and sodium fluoride further comprises potassium fluoride and calcium fluoride in the following ratio, % by weight: -lithium fluoride 60.0 to 90.0 -sodium fluoride 5.0 to 20.0 -calcium fluoride 1.0 to 5.0 -potassium fluoride 4.0 to 15.0 -