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热带轧机使用响应性高的油压AGC装置后,对所控制的带钢部分可获得高精度的板厚。但AGC尚未动作的钢板前端部分,其板厚精度大有改善的余地。 带钢前端部分的厚度精度取决于轧制钢板前设定精轧机的压下位置和轧辊圆周速度的预测控制精度该预测控制是在测定粗轧机出口处钢板前端部分的厚度和温度的基础上,利用数学模型推算变形抗力、
After using the highly responsive hydraulic AGC unit in the hot strip mill, high precision sheet thickness can be obtained for the strip being controlled. However, AGC has not yet moved the front part of the plate, the thickness of the great improvement of the room there is room for improvement. The accuracy of the thickness of the leading end of the strip depends on the predicted control precision of the setting position of the finishing mill and the peripheral speed of the roll before the rolling of the steel plate. Based on the measurement of the thickness and the temperature of the leading end portion of the steel plate at the exit of the roughing mill, Using mathematical models to calculate the deformation resistance,