【摘要】 分析了合缝角对焊接质量的影响，建立了锥式芯棒成型螺旋焊管合缝角、焊点位置、加热回路长度等合缝区参数与锥角、成型角等因素的关系，为新轧机结构及工艺参数的设计提供了依据．更多还原

【Abstract】 The effects of V-apex angle on weld quality are analysed. The relation ships between V-apex angle, weld position, length of heating circuit and the cone apex angle, forming angle are established. The results can provide a theoretical guidance for practical design of new mill.更多还原