Rolling mill lifting thickness control method and device
A thickness control and rolling mill technology, applied in rolling mill control devices, metal rolling, metal rolling, etc., can solve the problems of thickness difference, unavoidable thickness difference when changing rolls, reducing the pass rate, etc., to reduce fluctuation and ensure Product qualification rate, the effect of improving product qualification rate
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Embodiment 1
[0037] This embodiment provides a rolling mill starting thickness control method, such as figure 1 shown, including:
[0038] Step S101, when the M rolling mills in the N rolling mills need to change rolls, according to the specifications of the steel types rolled by the N rolling mills and the frame information of the M rolling mills, determine the size of the additional rolling force and the need to increase K target stands of the additional rolling force; N, M and K are all positive integers, N is greater than or equal to M, and N is greater than or equal to K;
[0039] Step S102, using the additional rolling force as an increment, setting and increasing the start-up rolling force of the K target stands;
[0040] Step S103, starting up the M rolling mills to change rolls.
[0041] It should be noted that, according to research, there are many factors that cause the difference in starting thickness, mainly due to friction coefficient, rolling force and tension. For the ma...
Embodiment 2
[0067] like Figure 4 As shown, a rolling mill starting thickness control device is provided, including:
[0068] Determining module 401, used to determine the size of the additional rolling force according to the specifications of the steel types rolled by the N rolling mills and the frame information of the M rolling mills when the M rolling mills in the N rolling mills need to change rolls And K target stands that need to increase the additional rolling force; N, M and K are all positive integers, N is greater than or equal to M, and N is greater than or equal to K;
[0069] Adding module 402, taking the additional rolling force as an increment, setting and increasing the start-up rolling force of the K target stands;
[0070] The start-up module 403 is used to start-up and change rolls of the M rolling mills.
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