METHOD OF ARGON-ARC WELDING OF COPPER AND ITS ALLOYS ON STEEL BY NONCONSUMABLE ELECTRODE Russian patent published in 2010 - IPC B23K9/04 B23K103/22 

FIELD: technological processes.

SUBSTANCE: invention may be used in manufacturing of units and structures from steel with production of working layer from copper alloy for provision of their corrosion resistance, electric conductivity, anti-friction properties. Prior to beginning of welding, filler rod is installed in the area of welding start at the angle to welded surface with rest of rod lower end against it, and welding burner is arranged at the angle to filler rod. Filler rod is welded in process of its motion without change in angle of inclination to welded surface, avoiding contact of arc with steel. Welding arc is transferred from filler rod to produced bath of melt material, and process of welding is carried out with an angle forward, maintaining constant angle of welding burner inclination and level of melt metal bath.

EFFECT: method provides for minimum (less than 5%) transition of iron from steel into melt metal, which makes it possible to increase corrosion resistance of melt metal, angle of bending and impact viscosity of melt samples.

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