在钢管焊接接头中,管件要经过“铲坡口”一道工序,这项操作很麻烦。过去都是手工操作,存在不少缺点:如沿圆周方向坡口的规格不易一致,有大有小,影响焊接接头的质量;操作技术要求高,一般需四级以上工人操作;铲坡口的工具(如扁铲等)整修频繁,工时消耗较多,影响工效;劳动强度较高等。 In the welded joints of steel pipes, the pipe fittings go through a process of “beveling the groove”. This operation is very troublesome. The past are manual operations, there are many shortcomings: such as the groove along the circumferential direction of the specifications are not easy, there are large and small, affect the quality of welded joints; operating technology requirements, generally require more than four workers to operate; shovel groove Tools (such as flat shovels, etc.) are frequently refurbished, consume more time, affect work efficiency, and have higher labor intensity.