【摘要】 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。更多还原

【Abstract】 Through changing the welding parameters (weld electric current,smelting area continued times ,coolingspeed ). The effects of parameters on the spherodize ratio of welding nodular cast iron smelting area were analysed.[更多还原