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通过选择合理的工艺规范,并采用相应的工装,对6mm左右壁厚的小口径LPG储气罐筒体纵缝采取单面焊双面成型工艺代替双面埋弧焊接工艺。经焊接接头试验分析表明:X光探伤检验结果理想,焊接接头性能符合技术要求。单面焊双面成型工艺质量稳定,效率更高,更能适应该类产品批量生产的要求。
By choosing a reasonable process specification and using corresponding tooling, the single-side welding double-side forming process instead of the double-sided submerged arc welding process is adopted for the longitudinal slit of the LPG gas storage tank with a small diameter of about 6mm. The experimental analysis of the welded joints showed that: X-ray inspection test results are satisfactory, the performance of welded joints meet the technical requirements. Single-sided welding double-sided molding process of stable quality, higher efficiency, better able to meet the requirements of mass production of such products.