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METHOD FOR PRODUCING TIG WELDED STAINLESS STEEL TUBE, TIG WELDED STAINLESS STEEL TUBE, AND TIG WELDED STAINLESS MEMBER
METHOD FOR PRODUCING TIG WELDED STAINLESS STEEL TUBE, TIG WELDED STAINLESS STEEL TUBE, AND TIG WELDED STAINLESS MEMBER
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机译:TIG焊接不锈钢管,TIG焊接不锈钢管和TIG焊接不锈钢构件的制造方法
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摘要
The present invention provides a method for producing a TIG-welded stainless steel tube without adding H2 to a shielding gas, while inhibiting generation of a weld defect. The method is a method for producing a TIG-welded stainless steel tube and includes the steps of bending a stainless steel strip in a width direction so as to butt both edges against each other and TIG-welding the both edges thus butted. A pulse waveform of a pulse frequency of 40 Hz to 300 Hz is used as a current waveform of a welding power source. ( Fig. 1 )
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