FLUX FOR ELECTRIC ARC WELDING Russian patent published in 1998 - IPC

FIELD: composition of fluxes used for mechanized welding with enhanced velocity employed for rebuilding of worn-out parts working under conditions of abrasive wear-out, including crankshafts. SUBSTANCE: flux includes components in the following ratio, mas.%: SiO₂, 29-33; MnO, 30-33; MgO, 24-26; CaO, 4-6; CaF₂, 4-6; Al₂O₃, up to 2.5; Fe₂O₃, up to 1.5; S, up to 0.2; and P, up to 2. Content proportion of basic and acidic oxides amounts to 1.30-1.34. EFFECT: increased welding and technological properties of flux, higher qualitative characteristics of built-up metal. 1 tbl