东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2013, Vol. 34 ›› Issue (1): 75-79.DOI: -

• 论著 • 上一篇    下一篇

变厚度轧制轧件水平速度变化规律

张广基，刘相华，胡贤磊，支颖   

  1. (东北大学轧制技术及连轧自动化国家重点实验室，辽宁沈阳110819)
  • 收稿日期:2012-07-31 修回日期:2012-07-31 出版日期:2013-01-15 发布日期:2013-01-26
  • 通讯作者: 张广基
  • 作者简介:张广基(1986-)，男，山东烟台人，东北大学博士研究生；刘相华(1953-)，男，黑龙江双鸭山人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(50974039，51174249).

Research on Variation of Work Piece Horizontal Velocity for Variable Gauge Rolling

ZHANG Guang-ji， LIU Xiang-hua， HU Xian-lei， ZHI Ying   

  1. State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China.
  • Received:2012-07-31 Revised:2012-07-31 Online:2013-01-15 Published:2013-01-26
  • Contact: ZHANG Guang-ji
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摘要： 为了揭示变厚度轧制过程轧件水平速度与轧辊垂直移动速度之间的关系，从分析变厚度轧制微元体变形入手，利用体积不变条件，建立了变厚度轧制变形区轧件水平速度关系微分方程(VGR-V方程).在给定的边界条件下对VGR-V方程进行了求解，得到了计算变形区轧件水平速度的表达式，同时验证了变厚度轧制同一时刻变形区轧件各断面秒流量不相等.给出了变厚度轧制过程的轧件水平速度分布的典型算例，从中可见各工艺参数对轧件水平速度的影响规律.该研究结果为变厚度轧制变形参数和力能参数求解提供了基础.

关键词: 变厚度轧制, 速度关系, 微分方程, 秒流量, 质量守恒

Abstract: To reveal the relationship between the work piece horizontal velocity and roll vertical velocity during variable gauge rolling (VGR)， the differential equation of work piece horizontal velocity (equation VGR-V) was set up by keeping material volume. Then it was solved under the VGR boundary conditions， and the formula to calculate the work piece horizontal velocity was obtained. Furthermore， it was proved that equal discharge per second condition (EDSC) no longer fits VGR processes. Some typical examples were given， so that the influence of technological parameters on the work piece horizontal velocity was presented. It provided a theoretical basis for researching on deformation parameters and mechanical parameters in VGR processes.

Key words: variable gauge rolling, velocity relationship, differential equation, discharge per second, conservation of mass

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