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Cold stripe mill deviation and shape automatic control method

A cold rolling mill and strip technology, applied in the field of strip rolling, can solve the problems of not considering control deviation and the like

Active Publication Date: 2015-01-14
NINGBO BAOXIN STAINLESS STEEL
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  • Abstract
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Problems solved by technology

However, this method also only takes the strip shape after rolling as the control target, and does not consider the deviation control

Method used

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  • Cold stripe mill deviation and shape automatic control method
  • Cold stripe mill deviation and shape automatic control method
  • Cold stripe mill deviation and shape automatic control method

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Embodiment Construction

[0044] The cold rolling mill deviation and shape automatic control system adopting the method of the present invention has a plurality of shape actuators and deviation and shape automatic control units 7 for adjusting the shape of the strip, and at the same time, at the entrance of the cold rolling mill and the outlet are equipped with a shape meter, such as figure 2 shown.

[0045] The strip cold rolling mill running deviation and strip shape automatic control method provided by the present invention utilizes the flatness instrument configured at the entrance and exit of the cold rolling mill to detect the strip strip shape before and after the strip cold rolling in real time, and use the The strip shape after rolling and deviation amount of material 3 are taken as comprehensive control targets, and the deviation between the rolled shape and the target shape and the strip deviation amount are comprehensively minimized by automatically adjusting the shape adjustment mechanism...

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Abstract

The invention discloses a cold stripe mill deviation and shape automatic control method. Stripe shape meters are arranged at the inlet and outlet of a cold mill, the shape of stripe material can be detected before and after cold milling, the shape of the milled stripe material and the deviation amount are adopted as a comprehensive control target, the mill shape adjusting mechanism is adjusted automatically, the deviation between the shape of the milled stripe material and the target shape and the stripe material deviation amount are minimized comprehensively, owing to the real-time detection of the stripe shape meters, real-time calculation of a deviation and stripe shape automatic control unit, adjusting amount of a stripe shape control and output executing mechanism, the deviation occurrence rate in the stripe material cold milling process is decreased effectively, and the unit production capacity is improved; meanwhile, compared with the traditional manual controlling and adjusting manner, the stripe shape control accuracy is guaranteed, and the stripe product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of strip rolling, and relates to an automatic control method for deviation and plate shape of a strip cold rolling mill. Background technique [0002] In the rolling production process of the strip cold rolling mill, the poor shape of the strip at the entrance and exit of the cold rolling mill is one of the main reasons for the deviation, which makes the strip prone to deviation during the rolling process. According to the strip rolling theory and practice, the strip deviation mechanism is that the strip in the load gap of the rolling mill produces plastic deformation under the joint action of the entrance tension, exit tension and rolling force. After rolling, there are various wave shapes. The entrance tensile stress and exit tensile stress of the strip in the load gap of the rolling mill are usually unevenly distributed along the width of the strip. Under the joint action of the entrance tension and exit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B39/14B21B37/28
Inventor 顾廷权何汝迎乔爱民袁意林赵伟徐锋
Owner NINGBO BAOXIN STAINLESS STEEL
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