The main production process of high-pressure steel pipe
High-pressure steel pipe rolling, pipe sizing, reducing steel pipe, steel pipe finishing and cooling or heating can be said Billet piercing heat tie pickling cold drawn carbon burning cutting head spray subscript finished packing one kind of seamless steel pipe manufacturing method characterized by: setting a plurality of rolling stands having rolls to the rolling direction of mutually different configuration of multiple continuous mandrel mill, in such a manufacturing line to be rolled seamless steel pipe both end positions after each axis system, measuring pipe circumferential direction after rolling on the multi-point, according to the measurement results, at least control the mandrel mill the final rolling mill roll base , so uneven wall thickness to a minimum.