A control method to solve the narrowing of the tail of hot-rolled strip silicon steel
A control method and technology for hot-rolled strip, applied in rolling mill control devices, metal rolling, metal rolling, etc., can solve the problems of large changes in the shape of the strip tail, affecting the rolling line, and narrowing of the strip tail, etc. Achieve the effect of reducing abnormal downtime, ensuring stable control, and ensuring width accuracy
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[0014] If the looper torque deviation at the end of the strip is in the range of -300 N·m to -1000 N·m when the strip falls, the looper torque between the finishing stands will not match the speed adjustment of the main machine by using the existing technical means. There will be a mismatch, resulting in the narrowing of the tail of the strip. However, if the looper torque deviation at the strip end is greater than -300 N m or less than -1000 N·m, because the temperature of the tail of the strip becomes lower, the shape of the tail of the strip changes greatly, resulting in a mismatch between the looper torque of the looper between the finishing stands and the speed adjustment of the main machine, resulting in the narrowing of the tail of the strip and the loss of the product Poor quality seriously affects the normal production of the rolling line. The present invention is just to solve the above problems.
[0015] The looper volume control is realized by adjusting the looper...
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