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Automatic slippage control method suitable for rolling process of rough rolling

A rolling process and rough rolling technology, applied in the direction of rolling force/roll gap control, etc., can solve the problems of easy wear and uncontrollable slippage, and achieve the effect of less loss, good effect and lower maintenance cost.

Active Publication Date: 2011-11-23
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, there are also other methods to prevent slipping. The method disclosed in Chinese patent CN1037852 is to increase the friction coefficient of the roll by scoring the roll to control the slipping. Similarly, it also has the disadvantage of being easy to wear and cannot control the slipping phenomenon.

Method used

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  • Automatic slippage control method suitable for rolling process of rough rolling
  • Automatic slippage control method suitable for rolling process of rough rolling
  • Automatic slippage control method suitable for rolling process of rough rolling

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Embodiment Construction

[0040] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] figure 1 It is a schematic diagram of the rough rolling mill and the entrance and exit side guides, including the entrance side guide 1, the vertical rolling mill 2, the horizontal rolling mill 3, the exit side guide 4, the strip steel 5 (intermediate billet), and the entrance hot metal detector 6 (HMD) , export hot metal detector 7 (HMD).

[0042] figure 2 It is a schematic diagram of the adjustment device of the R2 roughing mill, including the hydraulic oil cylinder 8 (AGC oil cylinder) of the roughing mill, the lower horizontal roll 9, the upper and lower rolling mill roll gaps 10, and the upper horizontal roll 11.

[0043] In the present invention, the related equipment for rolling force judgment and slip control includes (not marked in the figure): pressure measuring head (rolling force detection), rolling forc...

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Abstract

The present invention provides an automatic slippage control method suitable for a rolling process of rough rolling, which comprises the following steps: a roll force judging model and a slippage control model are built; the collected roll force data of a rough rolling mill is judged by the roll force judging model; when the offset of roll force exists, the slippage control model is started to make slippage control to control and reduce the rolling speed of the rough rolling mill and the position height of a hydraulic cylinder. The present invention is fully automatic control. Because the slippage is controlled by adjusting the rolling speed of the rough rolling mill and the position height of a hydraulic cylinder in the automatic slippage control method, the abrasion of system componentsare not related. Thus, the slippage control effect is good, the related loss is small, and the maintaining cost is reduced.

Description

technical field [0001] The invention relates to the field of steel rolling and rough rolling control in the field of metallurgy, and more specifically relates to an automatic control slipping method suitable for the rough rolling process. Background technique [0002] In the current rough rolling of steel in the metallurgical field, for example, the second stand of the 1880 hot-rolled rough rolling mill used by Baoshan Iron and Steel Co., Ltd. often occurs in the first three passes of the rolling process. Slipping during the rolling process causes the strip to stop and other phenomena, and the shape of the strip is seriously deviated. [0003] This kind of slippage will cause many hidden dangers. The slippage can cause torsional vibration in the main drive system of the rough rolling steel rolling system, and the main drive base and the main drive will vibrate violently and hum, causing the motor parts and the main drive system to be seriously damaged. The stress value of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/58
Inventor 张仁其陈琪
Owner BAOSHAN IRON & STEEL CO LTD
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