A kind of cold rolling mill control method
A technology of cold tandem rolling mill and control method, which is applied in the direction of rolling mill control device, metal rolling, metal rolling, etc., and can solve problems such as deviation and broken strips of cold tandem rolling mills, so as to avoid deviation and broken strips, reduce downtime or Equipment damage, the effect of improving yield and product quality
Active Publication Date: 2017-11-28
SHOUGANG JINGTANG IRON & STEEL CO LTD
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Problems solved by technology
[0003] The embodiment of the present invention solves the technical problem of frequent deviation and broken strips in the cold tandem mill in the prior art by providing a control method for the tandem cold rolling mill
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[0028] 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.
[0029] A method for controlling a tandem cold rolling mill provided by an embodiment of the present invention is applied to a tandem cold rolling mill, and the tandem cold rolling mill includes a stand group, for example, the stand group includes 5 stands. refer to figure 1 As shown, the cold tandem rolling mill control method provided by the emb...
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The invention discloses a control method for a tandem cold mill. The control method comprises the following steps: obtaining history optimal CVC setting data; fitting strip steel specification parameters, mill parameters of the tandem cold mill and the history optimal CVC setting data to obtain a CVC channeling roll value of the tandem cold mill; comparing the CVC channeling roll value with a channeling roll set value of a mill secondary system of the tandem cold mill; if a deviation absolute value between the CVC channeling roll value and the channeling roll set value is greater than a preset deviation threshold value, receiving a manual amendment value and carrying out self-learning, based on the manual amendment value, on the CVC channeling roll value to obtain a self-leaned CVC channeling roll value; and at least carrying out strip steel rolling, according to the self-learned CVC channeling roll value, on a hot rolling raw material by virtue of the tandem cold mill. The control method avoids deviation and strip breakage caused by great channeling roll value setting deviation, reduces the probability that a tandem cold mill set has deviation and strip breakage, and relieves the technical problem that the tandem cold mill set in the prior art frequently has deviation and strip breakage, so that the yield and the product quality of the tandem cold mill set are improved.
Description
technical field [0001] The invention relates to the field of tandem cold rolling mills, in particular to a control method for tandem cold rolling mills. Background technique [0002] The tandem cold rolling unit is a fully continuous five-stand six-roller fully hydraulic AGC (Automatic Generation Control, automatic generation control) rolling mill. The specifications of the rolled products have requirements for the thickness and width of the exit. When the hot-rolled incoming material crown, wedge shape, and center deviation are within the range, and the cold continuous rolling parameter setting meets the process requirements, the automatic control system of the rolling mill can maintain high-efficiency rolling, and the product yield and production efficiency are high. However, this production method is based on the continuous rolling of the unit. Once the unit deviates and breaks the belt, it will greatly affect the production capacity release of the unit. Operators have t...
Claims
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IPC IPC(8): B21B37/68
CPCB21B37/68B21B2273/04
Inventor 王少飞唐伟张晓峰刘旭明张良任新意王飞窦爱民李靖时海涛
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD