The main production process of high pressure pipe: tube and blank heating, tube perforation, steel pipe extension.
High-pressure pipe rolling, steel pipe diameter and diameter reduction, steel pipe cooling and finishing or can be said that the steel embryo heating perforation heat pickling pickling cold-drawn carbon burn head spray standard packaging a seamless steel pipe manufacturing method Characterized in that a rolling mill base having a plurality of rolls is provided, and a plurality of mandrel-type seamless tube rolling stands are continuously arranged in mutually different rolling directions, and the seamless steel pipe is rolled on such a manufacturing line And the wall thickness in the circumferential direction of the steel pipe after the rolling is measured at a plurality of points, and at least the two ends of the rolls on the final rolling stand of the mandrel mill are controlled in accordance with the measurement result, So as to minimize wall thickness unevenness. General alloy pipe> alloy pipe> alloy pipe> high-pressure alloy pipe referred to as seamless steel pipe, with ordinary carbon steel, high-quality carbon steel, ordinary low-alloy steel and alloy structural steel for the production of liquid pipeline or production structure, parts use. High pressure pipe according to the outer diameter and wall thickness of the supply, in the same diameter under a variety of wall thickness, high pressure pipe to withstand a greater pressure range. Usually the length of steel pipe, hot-rolled tube is 3-12.5m, cold drawn (rolling) tube is 1.5-9m.