道次间冷却对厚板控制轧制变形行为的影响

发布时间：2018-02-11 17:10

  本文关键词： 厚板 控轧控冷 道次间冷却 差温轧制 变形渗透性　出处：《钢铁》2017年09期 　论文类型：期刊论文

【摘要】：厚规格钢板轧制中低压缩比难以消除连铸坯心部缺陷,容易引起厚规格钢板性能波动。采用数值模拟和试验研究相结合的方法,详细分析了道次间强冷却工艺对厚规格板坯温度变化和轧制变形的影响规律。结果表明,采用道次间强制水冷的方式进行"温控-形变"耦合控制,可以有效提高厚规格钢板心部变形量,改善内部质量。对比分析可知,高温粗轧阶段采用道次间冷却对钢板心部变形影响较大;精轧阶段进行道次间冷却,对钢板心部变形影响相对较小,同时将显著提升道次轧制力。
[Abstract]:The low compression ratio of thick steel plate rolling is difficult to eliminate the defects in the center of continuous casting billet, and it is easy to cause the performance fluctuation of thick steel plate. The method of numerical simulation and experimental study is adopted. The influence of strong interpass cooling process on the temperature change and rolling deformation of thick slab is analyzed in detail. The results show that the coupling control of "temperature control and deformation" is carried out by means of forced water cooling between passes. The core deformation of thick steel plate can be increased effectively and the internal quality can be improved. The comparison and analysis show that interpass cooling at high temperature rough rolling stage has a great influence on the core deformation of steel plate. The effect on the center deformation of steel plate is relatively small, and the rolling force of pass will be increased significantly at the same time.
【作者单位】： 东北大学轧制技术及连轧自动化国家重点实验室;
【基金】：国家重点研发计划资助项目(2016YFB0300601,2016YFB0300602)
【分类号】：TG335.51
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本文编号：1503568