Full-floating mandrel tandem-rolling seamless steel pipe production process
A technology of seamless steel pipe and production process, applied in the direction of metal rolling, etc., can solve the problems of low production efficiency, high consumption, high pollution, etc., and achieve the effect of fast rolling rhythm, high output and saving production cost
Inactive Publication Date: 2011-01-26
胡顺珍
6 Cites 11 Cited by
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Abstract
The invention discloses a full-floating mandrel tandem-rolling seamless steel pipe production process for solving the problem of low production efficiency, high consumption and high pollution in the traditional perforation, lube rolling mill and cold drawn seamless steel tube production process. The production process comprises the following steps of: heating, heating pipe blanks in a heating furnace; perforating, perforating the heated pipe blanks by a provided perforator; carrying out diameter reduction by utilizing six stand hollow billets: reducing diameter of the perforated tubular billets by a six-stand hollow billets diameter reducer; carrying out eight stand tandem rolling, extensively rolling the tubular billets after the diameter reduction by utilizing the six stand hollow billets by a tandem rolling pipe mill continuously provided with the eight stands; carrying out single stand mandrel removing, removing mandrels from pierced billets with mandrels after the eight stand tandem rolling by a single-stand mandrel removing machine; carrying out 28-stand tension diameter reducing, rolling the pierced billets after mandrel removing in an 28-stand tension diameter reducer to form hot finished-product steel pipes; and finishing, finishing the hot finished-product steel pipes to form finished-product steel pipes.
Application Domain
Metal rolling arrangements
Technology Topic
Steel tubeHeating furnace +5
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