钢结构焊接工艺指导书

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1、钢结构焊接工艺指导书序号母材材质焊接方法焊 材焊接工艺参数预热及热处理要 求工艺评定编号备注牌号规格（mm）电流（A）电压（V）焊速（cm/min）1Q235（I类）氩弧焊H08Mn2Si2.510013011146159345 9466氩弧1.512mm氩弧打底1.560mm2Q235（I类）氩弧焊H08Mn2Si2.51001301114615600640热处理9225 9465氩弧1.512mm氩弧打底1.560mm3Q235（I类）焊条电弧焊J4273.210013021238159447 9466适用焊件厚度范围1.560416018024261015522024027318154Q

2、235（I类）焊条电弧焊J4273.2901202022815600640热处理9226 94651.560416018024261015522024027318155Q235（I类）焊条电弧焊J4273.2901202022815预热温度50600640热处理9941 5200416018024261525521024028301830616Mn（III组）氩弧焊H08Mn2Si2.5901409146159912 9471氩弧1.512mm氩弧打底1.544mm716Mn（III组）氩弧焊H08Mn2Si2.590140914615600640热处理9913 9442氩弧1.512mm氩弧打底1.544mm816Mn（III组）焊条电弧焊J5073.29012020228128738 94711.54441601802426815