HGH3128

HGH3128焊接性能：板材焊接性能良好，可采用氩弧焊、缝焊和点焊等方法焊接，均能得到满意的焊接接头质量，接头强度系数大于90%，该合金可与GH3044、GH3039、GH1140、GH3030和1Cr18Ni9Ti等板材焊接。HGH3128化学成分（%）CCrNiWMoAlTi≤0.0519.0-22.0余量7.5-9.07.5-9.00.40-0.800.4-0.80FeBZrCeMnSiPS不大于0.20.0050.060.050.500.800.0130.013HGH3128手工氩弧焊对接工艺参数厚度/mm焊接电流/A弧压/V氩气流量/(L/min)钨极直径/mm填料焊速/(m/min)1.595-11510112母材切条0.33-0.37HGH3128缝焊工艺参数厚度/mm二次电压/V焊接时间/s休止时间/s焊接电流/A电极电压/N焊速/(m/min)1.54.250.280.2498006375～78450.34HGH3128手工氩弧焊和缝焊接头的力学性能焊接方法熔炼工艺焊接材料θ/℃拉伸性能持久性能σb/MPa接头强度系数/%σ/MPat/h焊前焊后焊前焊后手工氩弧焊感应加电渣GH31288009504191963921869594-39-142-141感应加真空电弧GH312820800900950----755387240177-------39-------107～229缝焊感应加电渣GH3128＋GH312880090095010004122551961424022502061429898100100-593929-148193149-140142108GH3128＋GH3044800900950---417245147------------感应加真空电弧GH3128＋GH312820800900950----730363265181-------39-------146