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Dynamic setting method for rolling schedule of hot continuous rolling strip steel

A technology of rolling schedule and setting method, used in metal rolling, metal rolling, rolling mill control devices, etc. question

Inactive Publication Date: 2015-09-23
WUHAN JINLONG ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: when the rolling conditions change (such as changing rolls), the rolling force ratio of each stand in the finish rolling fluctuates greatly, and the rolling force upside down cannot be eliminated, and the product shape cannot be guaranteed.

Method used

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  • Dynamic setting method for rolling schedule of hot continuous rolling strip steel
  • Dynamic setting method for rolling schedule of hot continuous rolling strip steel
  • Dynamic setting method for rolling schedule of hot continuous rolling strip steel

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Embodiment Construction

[0044] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings of the embodiments.

[0045] see figure 1 , figure 1 It is a flow chart of the dynamic setting method of hot continuous rolling strip rolling regulation of the present invention, and the dynamic setting method of hot continuous rolling strip rolling regulation of the present invention comprises the following steps:

[0046] S1. According to the reduction distribution coefficient table, calculate the load distribution result of the hot continuous rolling and finishing mill according to the reduction distribution mode, that is, obtain the reduction ratio and outlet thickness of each stand, which includes the following steps:

[0047] S11, take the reduction distribution coefficient table, according to the layer information determined by the current strip steel grade × thickness × width, obtain the reduction distribution coefficient ...

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Abstract

The invention relates to the technical field of control over the rolling process of steel plates, in particular to a dynamic setting method for the rolling schedule of hot continuous rolling strip steel. The rolling schedule is dynamically set by combining a press distribution mode and adjacent machine frame rolling force proportion interval control. Based on the load distribution determined according to the press distribution coefficient, whether the actual rolling force proportion of adjacent machine frames meets the requirement of the target rolling force proportion interval is judged one by one. If not, the press rate of the corresponding machine frames is adjusted until all the adjacent machine frames meet the requirement of the target rolling force proportion interval. The dynamic setting method for the rolling schedule of hot continuous rolling strip steel can improve the setting accuracy of the rolling schedule of hot continuous rolling strip steel and the rolling stability.

Description

technical field [0001] The invention relates to the field of production process control of hot-rolled strip steel, in particular to a method for dynamically setting the rolling schedule of hot-rolled strip steel. Background technique [0002] In the strip steel hot continuous rolling finishing mill, the formulation of rolling regulations plays an important role in improving product quality. The stability of the production process has a direct impact. The rolling procedure includes reduction system, speed system, tension system and temperature system, the key of which is the reduction system. The reduction system refers to the distribution system of the reduction amount of each frame (or each pass), which is usually called load distribution or thickness distribution in the industry. [0003] Load distribution is the core of the rolling procedure, which directly affects product quality such as shape and thickness accuracy. Load distribution also has an important impact on ro...

Claims

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Application Information

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IPC IPC(8): B21B37/00
CPCB21B37/00
Inventor 李维刚张健民
Owner WUHAN JINLONG ENG TECH CO LTD