Q345R+S31603不锈钢复合板真空闪蒸罐的焊接工艺
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摘要
用板厚19 mm的Q345R+S31603不锈钢复合板制造真空闪蒸罐,通过对比板材成分、力学和物理性能差异,分析其焊接性。设计了筒体对接及管件角接的坡口形式,选定罐体各接头的焊材及工艺参数,其中复合钢板基层焊材为J507和H10Mn2,复层焊材A022,过渡层焊材A042。过渡层和复层用小线能量多道焊,层间温度60~80℃。焊接试样经力学性能和化学成分评定合格,焊缝质量经无损检测合格。
The vacuum flash tank was manufactured with 19 mm thick Q345 R+S31603 stainless steel composite plate.By comparing the chemical composition, mechanical and physical properties of the plate, the weldability was analyzed. The grooves of barrel butt joint and pipe angle joint were designed, and welding material and technological parameters of each connector of the tank were selected respectively. The welding materials of the composite steel base plate were J507 and H10 Mn2, the welding materials of cladding and transition layer were A022 and A042, respectively. The transition layer and cladding layer were welded with multipass and small heat input, the interpass temperature was 60-80℃. The test samples of welding samples were qualified by mechanical properties and chemical composition tests, and the weld quality was qualified by non-destructive testing.
The vacuum flash tank was manufactured with 19 mm thick Q345 R+S31603 stainless steel composite plate.By comparing the chemical composition, mechanical and physical properties of the plate, the weldability was analyzed. The grooves of barrel butt joint and pipe angle joint were designed, and welding material and technological parameters of each connector of the tank were selected respectively. The welding materials of the composite steel base plate were J507 and H10 Mn2, the welding materials of cladding and transition layer were A022 and A042, respectively. The transition layer and cladding layer were welded with multipass and small heat input, the interpass temperature was 60-80℃. The test samples of welding samples were qualified by mechanical properties and chemical composition tests, and the weld quality was qualified by non-destructive testing.
引文
[1]刘英东,孔德志,肖羽,等.S32750双相不锈钢真空闪蒸罐的制造技术[J].压力容器,2016,33(6):72-79.
[2]李亚江,栗卓新,陈芙蓉,等.焊接冶金学-材料焊接性[M].北京:机械工业出版社,2016:286-297.
[3]鞠小虎,谢永伦.Q345R+S30408复合钢板焊接工艺分析[J].机械制造,2013,51(585):83-84.
[4]史维琴.S31603和Q345R异种钢焊接工艺[J].电焊机,2013,43(9):75-77.
[5]石油化工不锈钢复合钢板焊接规程:SH/T3527-2009[S].
[2]李亚江,栗卓新,陈芙蓉,等.焊接冶金学-材料焊接性[M].北京:机械工业出版社,2016:286-297.
[3]鞠小虎,谢永伦.Q345R+S30408复合钢板焊接工艺分析[J].机械制造,2013,51(585):83-84.
[4]史维琴.S31603和Q345R异种钢焊接工艺[J].电焊机,2013,43(9):75-77.
[5]石油化工不锈钢复合钢板焊接规程:SH/T3527-2009[S].