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Mig arc welding method

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专利汇可以提供Mig arc welding method专利检索,专利查询,专利分析的服务。并且PURPOSE:To perform stably and satisfactorily MIG arc welding in any case of a DC reversed polarity, DC positive polarity and AC by incorporating a rare earth element in a specific amt. into a base plate to be welded. CONSTITUTION:A steel material for structural purpose added with 0.02-0.30wt% a rare earth element is used as a base plate to be welded. The stable reiteration of instantaneous contact short-circuiting between the surface of the molten metal in a molten pool formed on the base plate side and the molten metal at the tip of a welding wire is induced continuously so that the molten metal at the tip of the wire is transferred to the base plate side by said contact short-circuiting. Not only the arc stabilization in both positive and reverse halfwaves but also the stabilization of the refiring characteristic in the stage of polarity inversion are made possible and the weld bead having extremely good quality is formed.,下面是Mig arc welding method专利的具体信息内容。

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