Thermal expansion seamless steel pipe and straight seam steel pipe

Thermal expansion seamless steel pipe and straight seam steel pipe production technology
In terms of the technology processes, the thermal expansion seamless steel pipe and straight seam steel pipe production are almost the same. The large thermal expansion seamless steel pipe is generally using seamless steel pipe of finished, semi-finished seamless steel pipe or seamless steel blanks for secondary processing. On the expansion machine equipment, medium frequency heating the finished seamless steel pipe, semi-finished seamless steel pipe or seamless steel blank, select the appropriate processing of finished steel according to the required specifications, with a suitable mold expand from a small pipe to a bigger one and from coarse to fine. The difference between flaring straight seam steel pipe and thermal expansion seamless steel pipe lies in the the choice of the mother pipe - straight seam or seamless.