A production control method and system for non-oriented silicon steel
A production control method and technology of oriented silicon steel, applied in the direction of contour control, etc., can solve the problems of "mountain" shape defects, reduce the rate of defective plate shape, etc., achieve the reduction of defective rate of plate shape, optimize the calculation model of thermal expansion, refine Effect of Thermal Expansion Calculation
Active Publication Date: 2018-03-06
SHOUGANG CORPORATION
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Problems solved by technology
[0004] The purpose of the present invention is to provide a method and system for controlling the production of non-oriented silicon steel, which solves the existing problem of "mountain" shape defects in the middle and late stages of rolling, and reduces the rate of flatness defects in downstream processes.
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[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0052] A non-oriented silicon steel production control method provided in the embodiment of the present invention is applied to a hot continuous rolling mill. In the specific implementation process, the targeted hot rolling mill is divided into two parts: the upstream frame and the downstream frame, among which, there are four upstream frames: F1 ...
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The invention discloses a non-oriented silicon steel operation control method and system. The non-oriented silicon steel operation control method comprises the following steps: recognizing the states of heating furnaces in a silicon steel hot rolling process; determining the current number of the heating furnaces according to the currently recognized states of the heating furnaces; invoking a first production data set to adjust the thermal expansion calculation coefficient and the cooling water quantity of each upstream frame for intermittent matching of current rolling when the determined number of the heating furnaces is three, wherein the first production data set corresponds to three-furnace production; invoking a second production data set to adjust the thermal expansion calculation coefficient and the cooling water quantity of each upstream frame for intermittent matching of current rolling when the determined number of the heating furnaces is two, wherein the second production data set corresponds to two-furnace production; and controlling the thermal expansion stable value of each upstream frame according to the adjusted thermal expansion calculation coefficient. Therefore, the leftwards turned E-shaped plate shape defect at the middle and later periods in the conventional rolling process can be overcome, and the plate shape defective rate in a downstream procedure can be reduced.
Description
technical field [0001] The invention belongs to the technical field of hot rolling, and in particular relates to a production control method and system for non-oriented silicon steel. Background technique [0002] Low-silicon non-oriented silicon steel is a hot-rolled product that requires high strip profile. During hot-rolling production, the lateral metal flow of the strip is irregular, which has a negative impact on the cross-sectional profile control of low-silicon non-oriented silicon steel. Hot-rolled silicon steel products are raw materials for the cold-rolling process. With the continuous improvement of the precision requirements for cold-rolled silicon steel sheets, higher and higher requirements are put forward for hot-rolled silicon steel products, especially the cross-sectional profile of hot-rolled silicon steel products. It is the top priority of the downstream process. [0003] At present, the hot-rolled silicon steel products are controlled by small convexit...
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IPC IPC(8): B21B37/28B21B37/44
CPCB21B37/28B21B37/44
Inventor 赵阳郭薇王凤琴李飞张长利李沛环张喜榜
Owner SHOUGANG CORPORATION