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Three Stages Of Seamless Steel Pipe Production Technology

Changsha China
Categories: Manufacturing Engineering / China Tags:
seamless steel pipe

In the more than 100 years since the invention of the cross-rolling and piercing process by the Mannesmann Brothers, the development of seamless steel pipe production technology has gone through the following three stages:

(1) From the 1880s to the 1930s, for nearly half a century, there have been periodic pipe rolling mills (1892), pipe jacking machines (1899), and continuous pipe rolling mills (1901). 7 kinds of steel pipe production processes including automatic pipe rolling mill (1903), Diesel pipe rolling mill (1932), three-roll pipe rolling mill (1937) and extrusion press.These processes all have the maturity of industrial production and are gradually finalized. At that time, automatic pipe rolling mills and periodic pipe rolling mills were widely used, and the steel pipes produced by pipe jacking machines and three-roll pipe rolling mills accounted for only a small proportion. The continuous tube mill and the Diesel mill have not developed much.

(2) For about 40 years from the 1940s to the early 1980s, the continuous rolling of fully floating mandrels has been greatly developed, which can be used as a Proof of production.The commissioning of the MPM pipe rolling mill at the Darmin Bergamo Steel Pipe Plant (1978) and the semi-floating mandrel rolling mill at the Yawata Plant (1983) marked a new stage in the development of the continuous rolling process in which three types of continuous rolling processes coexist. .During this period, the development of seamless steel pipe production process is also reflected in the development of pipe jacking process into CPE process, the widespread application of tension reduction technology, and the successful use of continuous casting round billets as raw materials for pipe rolling.

(3) In the more than 20 years since the early 1980s, the three-roll mill and Diesel mill have been improved, and new three-roll mills and Accu-roll mills have appeared.In addition, the three-roll planetary tube mill (1982), GPS process (1989) and PQF process (1993) also appeared. It should be pointed out that the comeback of the tapered roller piercer is a major breakthrough in this stage, and it will have a huge impact on the development of seamless steel pipe production technology in the future.