CONNECTION JOINT IN PARTS OF ZINC OR ITS ALLOYS AND METHOD FOR MAKING IT Russian patent published in 2000 - IPC

FIELD: restoration, manufacture or repair of zinc articles by welding and soldering. SUBSTANCE: joint is made as combination welded-soldered seam. Joint includes portion welded by depth consisting (10-90)% of thickness of connected parts and portion soldered by remaining depth of joint. Gas (argon or air) stream heated until temperature higher than melting temperature of base metal is used as source for heating base and additive metals. Welding is carried out at using additive metal melted more easily than base metal by depth consisting (10-90)% of thickness of joint of connected metals. Remaining portion of base metal of joint is heated until temperature higher than melting temperature of additive metal but lower than melting temperature of base metal. Metal of remaining portion of joint is soldered by depth consisting (90-10)% of thickness of connected metals. EFFECT: reliable connection of parts without significant damage of surface near joining zone and without burnings of highly artistic articles and other articles of zinc and its alloys. 3 cl, 1 dwg