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步进梁连续式加热炉水印会导致中厚板轧制钢板厚度的波动。针对厚板加热炉的结构形式和厚板轧机控制模型的设定特点,研究出了一种可以针对加热炉水印位置进行轧制设定的控制方法。使用此方法可以对加热炉水印位置的轧制力进行单独设定,从而减轻甚至消除加热炉水印对厚板厚度的影响。在宝钢5 m厚板轧机现场应用后,厚板厚度精度得到了明显改善。
Stepping Beam Continuous Heater Watermarking Causes Fluctuations in Thickness of Plate Rolled Steel. Aimed at the structure of slab heating furnace and the setting characteristics of slab rolling mill control model, a control method for rolling setting based on watermark position of heating furnace was developed. Using this method, the rolling force at the watermark of the heating furnace can be set separately, so as to reduce or even eliminate the influence of the water heater on the thickness of the slab. After the on-site application of Baosteel 5 m thick plate mill, the thickness accuracy of the slab has been significantly improved.