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COMBINATION WELDING METHOD USING COMBINATION OF GAS METAL ARC WELDING AND SUBMERGED-ARC WELDING AND COMBINATION ARC WELDING MACHINE
COMBINATION WELDING METHOD USING COMBINATION OF GAS METAL ARC WELDING AND SUBMERGED-ARC WELDING AND COMBINATION ARC WELDING MACHINE
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机译:燃气金属弧焊与埋弧焊联合组合焊机的组合焊接方法
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摘要
Provided are a combination welding method and a combination arc welding machine thereof having excellent construction efficiency and preventing a deterioration of toughness of a HAZ by maintaining the current density of each of gas metal arc welding and submerged-arc welding within an appropriate range at the time of welding a steel plate by the combination of the gas metal arc welding using multielectrodes and the submerged-arc welding using multielectrodes. The gas metal arc welding is performed using two or more electrodes, a wire for welding having a wire diameter of 1.4 mm or more is used in the first electrode of the gas metal arc welding, and a current density of the first electrode is set to 320 A/mm2 or more.
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机译:提供一种组合焊接方法及其组合电弧焊机,该组合焊接方法及其组合电弧焊机具有优异的施工效率并且通过将当时的气体金属电弧焊和埋弧焊的电流密度保持在适当的范围内来防止HAZ的韧性劣化。通过使用多电极的气体保护金属电弧焊和使用多电极的埋弧焊接的组合来焊接钢板。使用两个或更多个电极进行气体金属电弧焊接,在气体金属电弧焊接的第一电极中使用焊丝直径为1.4mm以上的用于焊接的焊丝,并且将第一电极的电流密度设定为320 A / mm 2 Sup>或更高。
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