Strip steel thickness feedforward control method based on mechanical property detection
A feedforward control, mechanical performance technology, applied in rolling mill control devices, metal rolling, manufacturing tools, etc., can solve problems such as the thickness difference of the finished product and the fluctuation of strip performance that cannot be completely eliminated
Active Publication Date: 2011-04-27
BAOSHAN IRON & STEEL CO LTD
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However, the large reduction in continuous cold rolling is mainly done by the upstream stand, and the fluctuation of strip steel performance is recurring. This method can not completely eliminate the thickness feedforward control of each downstream stand. Finished product thickness difference caused by this performance deviation
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[0036] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment, but should be understood that, concrete description here should not be interpreted as the limitation to essence and scope of the present invention, those of ordinary skill in the art will understand after reading this description Various modifications made in the above embodiments all belong to the protection scope of the present invention.
[0037]A kind of strip steel thickness feed-forward control method based on mechanical performance detection of the present invention is to provide a method for detecting instrument configuration, and configure a strip steel thickness gauge and a mechanical performance testing instrument in front of the first frame at the same time, and each The thickness fluctuation value and deformation resistance fluctuation value of each strip obtained before one stand are respectively stored in two shift data tables, which are ...
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The invention relates to a control method of tandem cold rolling machine plate band thickness, in particular to a strip steel thickness feedforward control method based on mechanical property detection. The strip steel thickness feedforward control method comprises the following steps of: providing a configuration method of a measuring instrument; simultaneously configuring a strip steel thickness gauge and a mechanical behavior detector in front of a first rack; obtaining the deformation resistance value of strip steel on the corresponding section on the length direction by a behavior detection value and a rolling deformation condition; then, giving a thickness feedforward control strategy to track the strip steel by segments; successively storing the thickness fluctuation value and the deformation resistance fluctuation value of each section of strip steel, which are obtained in front of each rack, into a shifting data table, and shifting forwards along with the rolling speed of the strip steel; before the section of strip steel enters the rack, taking out the thickness fluctuation value and the deformation resistance fluctuation value corresponding to those of the section of the strip steel; and obtaining the regulation amount of each rack roll gap or rolling force for real-time feedforward control according to the feedforward control algorithm in different modes of a position inner ring and a rolling force inner ring. The invention can ensure the thickness consistency of the finished product strip steel on the length direction of the whole steel coil.
Description
technical field [0001] The invention relates to the technical field of strip cold rolling, in particular to a strip thickness control method of a cold tandem rolling mill. Background technique [0002] The rapid development of modern industry puts forward higher requirements for strip steel production, and plate thickness has always been one of the important indicators to measure the quality of strip steel. With the continuous development and application of strip steel performance testing technology, it is of great significance to improve the strip steel market competitiveness by studying the thickness control method under the condition that the strip steel deformation resistance can be obtained and continuously improving the thickness accuracy. [0003] The thickness difference of the incoming material is an important reason for the thickness difference of the finished cold-rolled strip steel. Therefore, a thickness gauge is installed in front of the tandem cold rolling sta...
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IPC IPC(8): B21B37/16B21B38/04
Inventor 顾廷权刘华王康健唐成龙熊斐陈培林李红梅王建国
Owner BAOSHAN IRON & STEEL CO LTD