ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2009, Vol. 30 ›› Issue (3): 30-33.

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Pilot Production of Hot Rolling in Ferrite Region for Cold Rolled Extra-low Carbon Steel Strip for Deep Drawing

Xiao Hongfei1 , Li Zhuang2, Wu Di3 , Wang Zhaodong3#br#   

  1. 1 College of Science, Shenyang University, Sheyang 110044 ；
    2 School of Materials Science & Engineering, Shenyang Institute of Aeronautical Engineering, Shenyang 110034；
    3 Stat Key Lab of Rolling and Automation, Northeastern University, Shenyang 110004)
  • Received:2008-11-20 Online:2009-06-01 Published:2022-11-24

深冲用超低碳冷轧带钢铁素体区热轧的现场试验

肖鸿飞1, 李壮2, 吴迪3, 王昭东3   

  1. 1沈阳大学理工学院，沈阳110044；
    2沈阳航空工业学院材料科学与工程学院，沈阳110034；
    3东北大学轧制技术及连轧自动化国家重点实验室，沈阳H0004
  • 作者简介:肖鸿飞(1961-),女，教授，硕士生导师,1983年辽宁大学毕业，理论物理、力学与应用研究。 李 壮(1964-),男，博士后,副教授,1986年吉林工业大学毕业,钢铁材料组织和性能研究。
  • 基金资助:
    国家自然科学基金资助项目(50104004)

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Abstract: Structure and properties of 3. 0 inm extra-low carbon steel strip ( % : 0. 008C, 0. 029Als, 0. 000 8 B, 0. 001 4N) hot finish-rolled by 1 880 mm hot rolling mill train in austenite region (945 ~ 848 °C ) and in ferrite region (803 - 755 °C ) , coiled at 700 °C , then cold rolled with 73% reduction and annealed have been studied and compared. Results showed that as compared with austenite region rolling, with ferrite region rolling the cold rolled steel strip annealed at 710 °C had higher elongation, plastic Strain ratio (r) and strain-hardening exponent (n) , therefore it had better deep drawability.

Key words: Cold Rolled Extra-low Carbon Steel Strip, Rolled in Ferrite Region, Deep Drawability

摘要： 研究和对比了经1 880 mm热轧机组在奥氏体区(945～848℃)和铁素体区(803～755℃)热精轧,卷取温度700℃以及73%压下率冷轧的3.0 mm超低碳带钢(%:0.008C、0.029Als、0.000 8B、0.001 4N)退火后的组织和性能。结果表明,与奥氏体区轧制比较,热轧采用铁素体区轧制的710℃退火后冷轧带钢具有较高的伸长率、塑性应变比(r值)和应变硬化指数(n),因而具有较好的深冲性能。

关键词: 超低碳冷轧带钢, 铁素体区轧制, 深冲性能

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