金属热处理 ›› 2020, Vol. 45 ›› Issue (8): 166-169.DOI: 10.13251/j.issn.0254-6051.2020.08.032

• 工艺研究 • 上一篇    下一篇

冷轧高强度低合金钢HC420LA的连续退火工艺

杨源远1, 董丽丽1, 梁世胤2   

  1. 1.内蒙古包钢钢联股份有限公司 技术中心, 内蒙古 包头 014010;
    2.内蒙古广泰路桥环境实业有限公司, 内蒙古 包头 014010
  • 收稿日期:2020-02-05 出版日期:2020-08-25 发布日期:2020-09-07
  • 作者简介:杨源远(1984—),男,工程师,学士,主要研究方向为冷轧汽车钢板材新产品研发,E-mail:yyuanyuan.zc@163.com

Continuous annealing process of cold rolled high strength low alloy HC420LA

Yang Yuanyuan1, Dong Lili1, Liang Shiyin2   

  1. 1. Technology Center, Inner Mongolia Baogang Steel Union Co. , Ltd. , Baotou Inner Mongolia 014010, China;
    2. Inner Mongolia Guang Tai Road & Bridge Environmental Industry Co. , Ltd. , Baotou Inner Mongolia 014010, China
  • Received:2020-02-05 Online:2020-08-25 Published:2020-09-07

摘要: 根据冷轧高强度低合金钢HC420LA的产品要求对其冷轧连续退火工艺进行了研究。HC420LA钢产品成分采用Nb、Ti微合金化成分体系、生产工艺选择热连轧+冷轧连续退火的工艺路线。通过实验室再结晶温度试验测定了HC420LA钢产品的再结晶温度,在工业化试生产阶段对连续退火工艺进行了试验研究,得出冷轧低合金高强钢 HC420LA 的再结晶温度为700 ℃,工业化生产时最佳加热均热温度为760 ℃。

关键词: 冷轧, 连续退火, 高强度低合金, 汽车钢

Abstract: Continuous annealing process of cold rolled high strength low alloy (HSLA) HC420LA steel was studied according to the production requirements. The composition of HC420LA steel product adopted Nb and Ti microalloying composition system. The hot rolled and cold rolled continuous annealing process were selected as the production process. The recrystallization temperature of HC420LA steel product was determined by laboratory recrystallization temperature test. The continuous annealing process was studied in the industrial trial production stage. It is concluded that the recrystallization temperature of the cold-rolled HSLA HC420LA steel is 700 ℃ and the optimum heating soaking temperature in industrial production is 760 ℃.

Key words: cold rolled, continuous annealing, high strength low alloy, automotive steel

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