A Method of Side Drop Control for Silicon Steel Production by Senkimir Rolling Mill
A control method and rolling mill technology, applied in the rolling mill control device, metal rolling, metal rolling and other directions, can solve the problems of low yield, inability to effectively control edge drop, low accuracy of lateral thickness difference, etc., to improve the yield, The effect of effectively controlling the edge drop of silicon steel and controlling the lateral thickness difference with high precision
Active Publication Date: 2020-03-20
SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD
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[0005] Embodiments of the present invention provide a method for controlling the edge drop of silicon steel produced by a Senkimir rolling mill to solve the problem that the roll-shifting of an intermediate roll in the Senzimir rolling mill reduces the edge drop of silicon steel to a certain extent in the prior art. However, the expected effect was not achieved, so that the edge drop could not be effectively controlled, the accuracy of the lateral thickness difference was not high, and the technical problems of the yield rate were low. By giving a single taper-middle roll shape and a roll shifting control strategy, effective control of silicon steel was achieved. Side drop, realize high-precision control of lateral thickness difference, greatly improve the technical effect of yield
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Embodiment 1
[0050] The embodiment of the present invention provides a method of edge drop control for producing silicon steel with a Senkimir rolling mill, please refer to figure 1 , the method includes:
[0051] Step S110: obtaining a roll shape curve function of an intermediate roll;
[0052] Further, the roll shape curve function of the one intermediate roll is specifically:
[0053]
[0054] In the formula, y(x) is a function of the radius of the middle roll, and the unit is mm;
[0055] x is the body coordinates of an intermediate roll with one end of the intermediate roll as the end point, and the unit is mm;
[0056] R 0 is the initial radius of an intermediate roll, in mm;
[0057] k 1 is the roll shape coefficient, the unit is mm -1 ;
[0058] a, b, c are roll shape coefficients, and the unit of a is mm -1 , b is dimensionless, and c is in mm;
[0059] L is the length of an intermediate roller, in mm;
[0060] x 1 and x 2 is the coordinate of the marker point, the ...
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The invention discloses an edge drop control method for producing silicon steel by using a Sendzimir rolling mill, and relates to the technical field of cold rolling. The method comprises that a middle roller roll shape curve function is obtained; parameters of the Sendzimir rolling mill are actually set, the initial radius R0 of the middle roller is determined, and the length L of a roller body of the middle roller is determined; mark point coordinates x1 and x2 are obtained; a roll shape coefficient k1 and a, b, c are determined; and the roll shape of the middle roller is determined. Single-taper middle roller roll shape and roll shifting control strategies are given, the technical effects of effectively controlling the edge drop of the silicon steel, realizing high-precision control ofthe transverse thickness difference and greatly improving the yield are achieved.
Description
technical field [0001] The invention relates to the technical field of cold rolling, in particular to a side drop control method for producing silicon steel with a Senkimir rolling mill. Background technique [0002] Silicon steel is an important raw material in the power electronics industry. It is mainly used in the production of motors, transformers and other products. This puts forward higher requirements for the control of the cross-sectional profile of cold-rolled silicon steel, especially the edge drop control and lateral thickness control of thin-gauge products. Poor control has become a difficult point in the shape control of cold-rolled high-precision silicon steel production. [0003] However, in the process of implementing the technical solutions in the embodiments of the present invention, the inventors of the present application found that the above-mentioned prior art has at least the following technical problems: [0004] In the prior art, the roll-shifting ...
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IPC IPC(8): B21B37/16
CPCB21B37/16
Inventor 马家骥刘海超游学昌李洪波刘磊司良英赵贞伟
Owner SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD