储气罐闷头与毛细管焊接方法研究

Study on Welding Method of Connector and Capillary of Gas Storage Tank

通过弯曲试验、扭转试验、拉脱试验和微观分析,对比储气罐闷头和毛细管采用激光焊和锡焊两种焊接方法的焊接质量。结果表明,激光焊和锡焊的弯曲和扭转性能相当;激光焊的拉脱性能优于锡焊;锡焊存在局部未覆盖情况,影响焊接强度,激光焊缝成型较好,未出现气孔、夹杂、裂纹等缺陷。

Through bending test, torsion test, pull-out test and microscopic analysis, the welding quality of gas storage tank connector and capillary welded by laser welding and tin welding was compared. The results show that the bending and torsion properties of laser welding and tin welding are equivalent;laser welding is superior to tin welding in pull-out performance;tin welding has partial uncovered venture, which affects the welding strength, laser welding is well formed without defects such as blowholes, inclusions and cracks.