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由瑞典MEFOS(冶金研究基金会)和斯堪的纳维亚钢厂合作,在一个科研项目中开发了用于钢板(热轧带钢)断面和板形在线控制的计算机程序CROW-N。该控制系统的基础是一些独立的模型,它们用来计算轧辊的弹性变形、工作辊的热膨胀和磨损、钢板内的温度分布。当然也考虑了不同的加热温度、压下规程、轧辊弯曲设备和轧辊冷却速率的分布。除带钢断面和板形外,该程序还计算和提供工作辊内部及钢板厚度方向上的温度分布、工作辊凸度(初始凸度加上热凸度再加上磨损)和工作辊与支持辊之间的负荷分布。该程序已经在钢板轧机上得到了验证。理论计算的钢板凸度和试验所得基本一致,即差小于钢板厚度的±0.5％,计算的钢板表面温度与测量温度之差在±10℃之内。
In cooperation with the Swedish MEFOS (Metallurgical Research Foundation) and Scandinavian mills, CROW-N, a computer program for on-line control of sheet metal (hot rolled strip) and strip shapes was developed in a research project. The control system is based on a number of independent models that are used to calculate the elastic deformation of the roll, the thermal expansion and wear of the work roll, and the temperature distribution within the steel sheet. Of course, different heating temperatures, pressure regulations, roll bending equipment and roll cooling rates are also considered. In addition to strip section and plate form, the program also calculates and provides temperature distribution inside the work roll and in the thickness direction of the work roll, work roll crown (initial crown plus thermal crown plus wear) and work roll and support Load distribution between rollers. The procedure has been validated on steel plate mills. The calculated crown of the steel plate is almost the same as the experimental one, that is, the difference is less than ± 0.5% of the thickness of the steel plate. The calculated difference between the surface temperature of the steel plate and the measured temperature is within ± 10 ° C.