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Adjusting method of stainless-steel cold continuous-rolling roll gap

An adjustment method, stainless steel technology, applied in rolling force/roll gap control, program control in sequence/logic controller, electrical program control, etc., can solve the problem of low strip yield and low roll gap setting accuracy , thickness out of tolerance and large length, etc.

Active Publication Date: 2011-01-05
SHANGHAI BAOSIGHT SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional roll gap calculation is only an adaptive setting calculation for the high-speed steady-state roll gap, and the setting accuracy of the roll gap is not high. , the length of the thickness tolerance is large, and the yield of strip steel is low

Method used

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  • Adjusting method of stainless-steel cold continuous-rolling roll gap
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  • Adjusting method of stainless-steel cold continuous-rolling roll gap

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Embodiment Construction

[0018] In the roll gap adjustment method of continuous stainless steel rolling of the present invention, the process control level L2 receives the original data of the roll and the strip steel to be rolled from the production control level L3, and the process control level adopts the roll gap calculation mathematical model according to the original data to calculate The roll gap value of the next strip at steady state, the roll gap value of the current strip at low speed, the roll gap value of the current / next strip at transient state, the roll gap value of the next strip at low speed, and calculate The roll gap adjustment amount from the current low-speed change of rolling the current strip to the current / next transient state, the roll gap adjustment amount from the current / next transient change to the low-speed rolling of the next strip, process control level The calculated roll gap value of the next strip steel in steady state, the roll gap adjustment amount from the low spe...

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Abstract

The invention discloses an adjusting method of a stainless-steel cold continuous-rolling roll gap. By adopting a roll gap calculation mathematical model in a process control level, the roll gap value of the next steel strip in a steady state, a roll gap adjustment amount when a low speed at which the current steel strip is rolled changes to the transient state of the current / next steel strip, a roll gap adjustment amount when the transient state of the current / next steel strip is changed to the lower speed at the next steel trip is rolled are calculated, and sent to a basic automatic level, the stainless-steel cold continuous-rolling roll gap is adjusted and controlled by the basic automatic level according to the roll gap value and the roll gap adjustment amounts. The invention can improve the setting accuracy of the roll gap in an unstable state, effectively reduce the thickness length tolerance of the steel strip in the unstable state and improve the yield of the head and the tail of the steel strip.

Description

technical field [0001] The invention relates to metallurgical automation technology, in particular to a method for adjusting the roll gap of stainless steel cold continuous rolling. Background technique [0002] The computer control system of the stainless steel tandem cold rolling mill is mainly composed of three levels: production control level L3, process control level L2, and basic automation level L1. Among them, the process control level L2 is the core of the whole system, and its task is to set and calculate rolling parameters so that the rolling mill can produce cold-rolled stainless steel products that meet the requirements as much as possible. In the production process, L2 receives the raw data of the next strip to be rolled from L3, and L2 adopts mathematical The model is precomputed for strip and rolling mill target data. This calculation process utilizes the mathematical model of the rolling process, so the mathematical model is the core of the pre-calculation...

Claims

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Application Information

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IPC IPC(8): B21B37/58G05B19/04
Inventor 肖保树金武明欧阳逸飞
Owner SHANGHAI BAOSIGHT SOFTWARE CO LTD
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