The forming principle and formingAngle of spirally-welded tube processing were introduced.
简要介绍了螺旋焊管成型原理和成型角概念。
2
Inside weld produced cracks are often faced problem by adopting wide coil with small formingAngle to produce small size spiral submerged welded pipe.
采用宽板小成型角生产小口径螺旋缝埋弧焊钢管时，内焊缝产生裂纹是经常遇到的问题。
3
To main reason for produced cracks is analyzed and effective solving measure is raised. It has certain direction significance for production of spiral welded pipe with small formingangle.