Assel轧管机轧制薄壁Φ70 mm x 3 mm合金结构钢管工艺研究和辊型改进

特殊钢 ›› 2013, Vol. 34 ›› Issue (2): 23-27.

Assel轧管机轧制薄壁Φ70 mm x 3 mm合金结构钢管工艺研究和辊型改进

袁方成，马金辉，黎福华

湖北新冶钢有限公司钢管事业部，黄石 435001

收稿日期:2012-11-08 出版日期:2013-04-01 发布日期:2022-10-08
作者简介:袁方成(1965-)，男，硕士研究生，高级工程师，钢管事业部部长，热轧无缝钢管工艺技术研究。

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

Yuan Fangcheng, Ma Jinhui, Li Fuhua

Tube Division, Hubei Xinyegang Steel Co Ltd, Huangshi 435001

Received:2012-11-08 Published:2013-04-01 Online:2022-10-08

摘要/Abstract

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。

关键词: Assel轧管机, 合金结构钢, Φ70 mmx3mm钢管, 轧制参数, 辊型优化设计

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.

Key words: Assel Mill, Alloy Structural Steel, Φ70 mm x3 mm Steel Tube, Rolling Parameters, Design of Optimum Roll Shape

袁方成, 马金辉, 黎福华. Assel轧管机轧制薄壁Φ70 mm x 3 mm合金结构钢管工艺研究和辊型改进[J]. 特殊钢, 2013, 34(2): 23-27.

Yuan Fangcheng , Ma Jinhui , Li Fuhua. 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.

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