Problems existing in ERW pipe

　　In the manufacturing industry in the promotion of ERW pipe is a future direction of enterprise technological transformation, but there are some problems in the use of Dn400 ASTM A53 Gr. a Carbon Steel ERW Pipe, is to adapt to the period is too long, generally need six months to a year before and after the adaptation period, reason is no fit, such as pre order for parts size precision or repeatability don't need stability, assembly fixture accuracy is not up to the quality of ERW pipe, and team operation and maintenance personnel of the robot stability is not ideal, the production plan and the utilization rate of the equipment does not match the workpiece drawings can not be timely adapt to ERW pipe.