A computer model control method for the width of hot-rolled products

A computer model and width technology, applied in rolling mill control devices, metal rolling, metal rolling, etc., can solve problems such as fluctuations and affecting product width accuracy, so as to improve control accuracy, narrow fluctuation range, and reduce scrap removal rate and cost loss effects
CN107626748BActive Publication Date: 2019-02-26ANGANG STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
ANGANG STEEL CO LTD
Publication Date
2019-02-26

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Abstract

The invention discloses a computer model control method for the thickness of a hot-rolled product. The method is a method for conducting classified reading and storing on the rough rolling broadeningstudy value according to the steel ball, the product thickness, a rough rolling machine, the width rolling reduction and the inlet thickness. Compared with the prior art, the computer model control method has the beneficial effects that the rough rolling broadening study value is classified according to the steel ball, the product thickness, the rough rolling machine, the width rolling reduction and the inlet thickness, the relevance between various factors and the width variation in the classifying method is obvious and is not affected by the rough rolling pass combination manner and the product thickness, the rough rolling broadening study value fluctuation range is obviously reduced, the method is suitable for production of products with various incoming material plate slab thicknesses,the product width control precision can be effectively improved, and therefore the generated waste product cutting-off rate and cost losses are reduced.
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Description

technical field

[0001] The invention relates to the field of automatic control of steel rolling, in particular to a computer model control method for the width of hot-rolled products. Background technique

[0002] With the demand for product development, specification expansion and production plan arrangement of the hot rolling production line, the output of 200mm thick slabs on the 1780 line of a hot rolling strip mill continues to increase. The model has no special countermeasures for incoming slabs of different thicknesses, which leads to a decrease in width quality accuracy, width blockade, and a sharp increase in the amount of scrap, which brings huge losses to the cost of the enterprise.

[0003] At present, the main factor affecting the control accuracy of product width is that the thickness of incoming slabs of the same steel type and product of the same specification is different. Generally, 230mm thick slabs are reciprocated in 3 passes in each of the two rough rol...

Claims

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