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通过对焊接参数（焊接电流、熔池持续时间、冷却速度）的改变，定性地分析了它们对所焊补球铁熔合区球化率的影响。
Through the change of welding parameters (welding current, bath duration, cooling rate), the influence of them on the spheroidization rate of the welded zone of the filler metal was qualitatively analyzed.