Control method of thin plate hot rolling wire finishing mill AGC system

A control method and technology of a finishing rolling unit, which are applied in rolling mill control devices, metal rolling, metal rolling, etc., can solve the problems of low production stability of thin-gauge products, difficulty in thickness control, and low thickness qualification rate of thick-gauge products , to solve the instability of production process control and product quality, solve production process control and products, improve the qualification rate and production stability
CN104907341AInactive Publication Date: 2015-09-16SHANDONG IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG IRON & STEEL CO LTD
Publication Date
2015-09-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a control method of a thin plate hot rolling wire finishing mill AGC system. According to the control method, the adjusting amplitude is subdivided according to the different thickness of the finished strip steel and different racks, and the adjusting amplitude is increased when the thickness of the finished strip steel is increased, and is decreased when the sequence number of the rack is increased. Therefore, the control concept that the adjusting amplitude of all finished strip steels at each rack of the finishing mill is a certain value is changed. The linear setting is conducted based on different thickness at each rack outlet of the racks F0, F1...Fn, the control precision of the AGC system is raised; the qualified rates of the strip steels in both thick and thin specification are increased and the production stability is improved. Therefore, the strip steels in smalllot, multi steel types and multi specification can be produced at the same time based on the order, and substantial economic benefit is realized.
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Description

technical field

[0001] The invention relates to the technical field of steel rolling equipment, in particular to a control method for an AGC system of a thin plate hot rolling line finishing mill. Background technique

[0002] At present, the AGC control system is widely used in each stand of the finishing line of the hot continuous rolling coil production line. Through the control of various AGC control systems, the product can reach the required target thickness. The outlet thickness of each stand of the finishing rolling unit gradually approaches the thickness of the finished product from front to back. In order to produce the thickness requirements that meet the order requirements, in addition to the initial roll gap design through load distribution, online adjustment through the AGC control system is also required. , to ensure that the thickness is up to standard.

[0003] The basic principle of the AGC system of the finishing mill of the thin plate hot rolling line is...

Claims

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