Shanghai Taichang Welding Backing Factory 上海泰昌焊接衬垫厂
welding with backing 衬垫焊 ; 垫板焊
welding with flux backing 焊剂垫焊
fusible welding backing 熔化性焊接背垫
Xianghshan Welding Backing Factory 象山焊接衬垫厂
backing welding 打底焊 ; 底层焊接
flux copper backing welding 铜板垫单面潜弧焊
flux asbesto backing welding 石棉垫单面潜弧焊
This welding backing is used with all one-side processes. Especially for those which do not demand back bead cleaning.
本衬垫可用于各种单面焊接工艺的位置，特别适用于不一定要求封底焊道的场合。
But in the backing welding, columnar grain-growth will be appeared in the direction of crystal direction, it effects the welding quality seriously.
但是单面焊打底层焊缝中出现的沿焊缝柱状晶结晶方向的柱状气孔，严重地影响着船舶焊接质量。
They cause all the welding of double tubes, joint boxes and gas-collecting tubes to realize the backing weld of TAW-P. The quality of the double tube waste heat boilers have been improved.
并对喷嘴、规范参数、坡口形式等作了相应改进，使双套管、联箱、集气管的焊接全部实现了钨极氩弧焊打底，从而提高了双套管废热锅炉的质量。
应用推荐