PQF連軋管機組382mm孔型的設計與開發(fā)
Design and Development of Φ382 mm Pass of PQF Mill
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摘要: 針對Φ460 mmPQF連軋管機組原有369,451 mm孔型不能生產(chǎn)Φ355.6~370 mm鋼管的問題,天津鋼管集團股份有限公司設計開發(fā)了382 mm孔型。經(jīng)過近2年的試制及批量生產(chǎn)證明,采用382 mm孔型可直接軋制Φ356(355.6),365,368 mm的鋼管,且軋制的鋼管壁厚精度與內外表面質量良好穩(wěn)定。Abstract: With the 369 mm and 451 mm passes,the PQF mill failed to produce tubes within the size range of Φ355.6~370 mm.Addressing this problem,a 382 mm pass is designed and developed by Tianjin Steel Pipe Corp.,Ltd.The 2-year trial and massive productions have proven that using the 382 mm pass,the mill is capable of rolling tubes with sizes of Φ356(355.6) mm,365 mm,and 368 mm which have satisfactory and consistent wall thickness tolerance and inner and outer surface quality.
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