A controlling method for hot rolled strip threading of a continuous mill set
A technology of hot-rolled strip steel and control method, which is applied in the direction of rolling mill control device, metal rolling, temperature control, etc., and can solve problems not related to strip threading efficiency and stability, limited strip threading control, and strip threading control. Low temperature and other problems, to achieve the effect of improving the stability of strip threading, improving the efficiency of the rolling mill, and improving the efficiency of the rolling mill
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[0043] In order to ensure the requirements of different types and specifications of strip steel (mainly applied to strip steel with a thickness of 1.2-25mm) in terms of strip threading stability, this technical solution can maximize the rolling mill threading stability while satisfying the strip threading stability. On the basis of the strip speed, while adopting the speed iterative deformation temperature control technology, the secondary layer judgment is adopted for strip steel of different specifications, taking into account the stability of strip threading and the efficiency of the rolling mill.
[0044] Refer to attached figure 1 , the specific technical solutions involved are as follows:
[0045] Step 1. Obtain the basic parameters given by the rolling strategy:
[0046] Combined with the data necessary for calculating the speed of the strip before the frame threading: strip threading speed, acceleration, water spray on the frame, water spray for division by zero, raw ...
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