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Edge wave control method aiming at high-strength steel and work rollers thereof

A control method, technology of work rolls, applied in the direction of manufacturing tools, contour control, rolls, etc.

Inactive Publication Date: 2013-07-17
BAOSHAN IRON & STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This poses a new and more difficult challenge to the shape control of cold-rolled strip

Method used

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  • Edge wave control method aiming at high-strength steel and work rollers thereof
  • Edge wave control method aiming at high-strength steel and work rollers thereof
  • Edge wave control method aiming at high-strength steel and work rollers thereof

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Embodiment Construction

[0032] The present invention proposes a side wave control method for high-strength steel, named SFR (high stiffness and large flexible roll) technology.

[0033] The upper work roll 210 and the lower work roll 220 as the SFR roll are antisymmetrically arranged, and the circumferential surface of each SFR roll that is axisymmetric is processed with a continuous roll-shaped curved surface, such as figure 1 As shown, the roll-shaped curved surface includes a continuous wavy curve, wherein the wavy curve constituting the upper work roll 210 includes crests 213 and troughs 214, and the appearance of the entire work roll 210 is in the shape of an axisymmetric fish-shaped vase with a fish head 212 The portion is flush with the left end of the adjacent backup roll 110; similarly, the end of the fish head 222 of the lower working roll 220 is flush with the right end of the adjacent backup roll 120, and the outer extension of the fish tail 221 protruding from the left end is W It is 5%-...

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Abstract

The invention relates to an edge wave control method aiming at high-strength steel and work rollers thereof. The method comprises the steps of (a) machining and maintaining a continuously changed axisymmetric roll-shaped curved face at the circumferential face of each work roller, and (b) enabling the no-load roller seam between the upper and lower rollers to be continuously changed to negative convexity from zero convexity, and the length of the contact line between the upper and lower work rollers and an adjacent support roller to be reduced when the upper and lower rollers in antisymmetry arrangement are oppositely shifted along the axial direction, wherein the roller shapes of the work rollers are approximately axisymmetric vase-shaped, and the roller curves of the vase-shaped work rollers at least comprise a section of continuous waved curve consisting of a group of crests and troughs. According to the method and the work rollers thereof, both the no-load roller seam shape and the inter-roller contact line length are changed during the process that the upper and lower rollers are oppositely shifted along the axial direction, thus increasing the transverse rigidity of a rolling mill by roller shifting, achieving higher convexity control capacity and realizing the control over the edge wave during the panel-strip rolling.

Description

technical field [0001] The invention relates to a steel rolling process / slab shape control technology, in particular to a method for controlling edge waves for high-strength steel and work rolls / intermediate rolls for realizing the method for controlling edge waves. Background technique [0002] As one of the most important products of the iron and steel industry, plate and strip play a very important role in the development of the national economy. It is widely used in industry, agriculture, national defense and daily life. With the rapid development of modern industry and science and technology, the vast number of users of industrial enterprises have put forward more and more strict requirements on the quality of plates and strips. [0003] Shape is one of the most important quality indicators of strips. In order to solve the problem of shape control in cold rolling, dozens of shape control technologies and special rolling mill models have emerged, such as CVC, HC / UC, Sma...

Claims

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Application Information

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IPC IPC(8): B21B37/30B21B27/02
Inventor 王康健张清东郑涛张晓峰
Owner BAOSHAN IRON & STEEL CO LTD
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