Study on Process and Improvement of Roll Shape for Rolling Thin-Walled Φ70 mm x 3 mm Alloy Steel Seamless Tube by Assel Mill

袁方成; 马金辉; 黎福华

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Study on Process and Improvement of Roll Shape for Rolling Thin-Walled Φ70 mm x 3 mm Alloy Steel Seamless Tube by Assel Mill

更新时间：2026-01-21

- Study on Process and Improvement of Roll Shape for Rolling Thin-Walled Φ70 mm x 3 mm Alloy Steel Seamless Tube by Assel Mill
- Special Steel Vol. 34, Issue 2, Pages: 23-27(2013)
- 作者机构：
  
  湖北新冶钢有限公司钢管事业部,黄石,435001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：08 November 2012，
  
  Online First：08 October 2022，
  
  Published：08 October 2013
- 稿件说明：
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袁方成, 马金辉, 黎福华. Study on Process and Improvement of Roll Shape for Rolling Thin-Walled Φ70 mm x 3 mm Alloy Steel Seamless Tube by Assel Mill[J]. Special Steel, 2013, 34(2): 23-27.
DOI：

袁方成, 马金辉, 黎福华. Study on Process and Improvement of Roll Shape for Rolling Thin-Walled Φ70 mm x 3 mm Alloy Steel Seamless Tube by Assel Mill[J]. Special Steel, 2013, 34(2): 23-27. DOI：

摘要

现场实验研究了Assel轧机轧制过程减径量、减壁量、牌坊转角、钢管径壁比(d/t)和转速对20Cr钢管扩径量(Δd)、壁厚不均匀度(Δt)和轴向滑移系数(ηo)的影响。设计了轧制Φ70 mm×3 mm 20Cr钢管的辊型。工业生产结果表明

毛管尺寸为Φ76.3～76.7 mm×7.89～8.36 mm，Assel轧机轧制参数为喉径58 mm

芯棒52mm.转角15°

转速200 r/min时可轧出符合标准要求的Φ70 mm×3 mm的20Cr钢管。

Abstract

The effect of reduction of diameter

reduction of wall thickness

feed angle

tube diameter/wall thickness (d/t) and rotating speed of roll on diameter expanding amount (Δd)

degree of non -homogeneous wall thickness (Δt) and axial slide factor (ηo) for rolling steel 20Cr tube is studied during Assel mill rolling process. The roll shape for rolling Φ70 mm x 3 mm 20Cr steel tube is designed. Commercial production results show that with Φ76.3-76.6 mm x 7.89-8.36 mm shell

Assel mill rolling parameters- throat diameter 58 mm

mandrel diameter 52 mm

feed angle 15°

rotating speed 200 r/min the rolled Φ70 mm x 3 mm 20Cr steel tube meets the requirement of standard.

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