微张力减径机孔型设计对45钢厚壁管“内六方”的影响

特殊钢 ›› 2009, Vol. 30 ›› Issue (6): 20-22.

微张力减径机孔型设计对45钢厚壁管“内六方”的影响

李秀莲¹，苟复钢²

1青海大学建筑工程系，西宁810016；
2西宁特殊钢集团有限责任公司，西宁810005

收稿日期:2009-06-03 出版日期:2009-12-01 发布日期:2022-11-15
作者简介:李秀莲(1968-),女,副教授,1990年7月毕业于西安冶金建筑学院，钢铁冶金及镁合金材料的研究。

Effect of Roll Pass Design for Stretch Reducing Mill with Faint Tension on Hexagonal Bore of Heavy Walled Tube of 0.45C Steel

Li Xiulian¹， Gou Fugang²

1 Qinghai University, Xining 810016 ；
2 Xining Special Steel Co Ltd, Xining 810005

Received:2009-06-03 Published:2009-12-01 Online:2022-11-15

摘要/Abstract

摘要： 通过将6机架定径前45钢管外径和总减径率分别由132 mm和12.95%降至128 mm和9.87%,并降低单机架减径率和改善微张力减径孔型设计参数,使3辊式机组生产的Φ114 mm×22 mm 45钢管"内六方"缺陷指数P值由1.40%～1.52%降至0.45%～0.67%,明显减少微张力减径钢管的"内六方"缺陷。

关键词: 微张力减径机, 内六方, 减径率, 孔型设计参数

Abstract: With decreasing the outside diameter of 0. 45C steel tube before 6 stands reducing and the total reducing rate respectively from 132 mm and 12. 95% to 128 mm and 9. 87% , decreasing single stand reducing rate and improving roll pass design parameters for faint tension reducing, the hexagonal bore index P value of Φ114 mm x 22 mm 0. 45C steel tube produced by three roll mill decreases to 0. 45% - 0. 67% from original 1.40% 〜1.52% , therefore the deformity of hexagonal bore of faint tension-stretched reducing steel tube is obviously decreasing.

Key words: Stretch Reducing Mil] with Faint Tension, Hexagonal Bore, Reducing Rate, Roll Pass Design Parameters

李秀莲, 苟复钢. 微张力减径机孔型设计对45钢厚壁管“内六方”的影响[J]. 特殊钢, 2009, 30(6): 20-22.

Li Xiulian, Gou Fugang. Effect of Roll Pass Design for Stretch Reducing Mill with Faint Tension on Hexagonal Bore of Heavy Walled Tube of 0.45C Steel[J]. Special Steel, 2009, 30(6): 20-22.