METHOD FOR DIFFUSION WELDING OF DIFFERENT TYPE STEELS

摘要

FIELD: processes and equipment for diffusion butt welding of short thick-wall tubes of different type steels. ^ SUBSTANCE: method comprises steps of placing between welded surfaces of two different type steels gasket of titanium or its alloy; compressing welding zone with effort no more than 0.2 kgf /sq.mm; heating it until temperature exceeding at least by 15 C temperature of creating liquid eutectics between titanium and one of welded steel; pressing liquid eutectics out off butt. ^ EFFECT: enhanced quality of welded joint at less compression efforts, elimination of blank creeping. ^ 4 cl, 1 ex