螺旋预精焊机组钢管切断装置的改进与应用

摘要

According to the high-speed forming process characteristics of the pre-welding unit of spiral two-step welding production line, in order to meet cutting demands for heavy wall thickness steel pipe, and ensure pre-welding unit production continuously, the improvement design for cutting device was carried out. It added a new differential-speed cutting mechanism and adopted plasma double-torch cutting process. The improved cutting device is with good application result, stable operation, which can fully meet requirements of cutting steel pipe.%针对螺旋缝预精焊管生产线预焊机组高速成型的工艺特点，为满足预焊高速出管时厚壁钢管切断要求，保证预焊机组连续生产，对切断装置进行了改进，新增差速切割机构，采用等离子双枪切割工艺。改进后的切断装置使用效果良好、运行稳定，完全满足预焊高速出管的钢管切断要求。