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Straightening scheme of metal plate-belt roll type combination straightening machine

A metal strip, straightening machine technology, applied in the direction of rolling force/roll gap control, etc., can solve the problems of strip slippage, reduce strip straightening quality, noise, etc., achieve the same degree of bending, avoid negative torque, movement same speed effect

Inactive Publication Date: 2011-07-20
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] , in the straightening process, as the bending curvature of the straightening strip decreases, the moving speed of the strip between the straightening rollers will change. Negative torque will be generated during the process, causing the strip to slip on the straightening roller surface, causing noise, thereby reducing the straightening quality of the strip

Method used

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  • Straightening scheme of metal plate-belt roll type combination straightening machine
  • Straightening scheme of metal plate-belt roll type combination straightening machine

Examples

Experimental program
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Embodiment Construction

[0014] Now there is a metal strip with thickness h=400mm, modulus of elasticity E=210000Mpa, yield limit σ s = 400Mpa, take the roll distance t = 400mm of the large roller system of the roller-type combined straightening machine, and bring it into the formula with The reduction amount s = 2.4 mm was obtained.

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Abstract

The invention discloses a straightening proposal of a metal slab band roller-typed combined straightener, which belongs to the technical field of the metal slab band straightener and is the improvement aiming at the existing straightening proposal. The invnetion is characterized in that in a roller system combined by a small roller system and a big roller system, a 'parallel straightening proposal' with equal rolling reduction both in a front roller system and a rear roller system is adopted, the rolling reduction thereof is as follows: wherein, 2rhow is the curvature radius of the bend of the slab band, rhow equals to (h * E ) / 2 sigmas, h is the thickness of the slab band, E is the elastic modulus of the slab band, sigmas- isthe yield limit of the slab band, and t is the distance between two straighening rollers of the big roller system.

Description

Technical field: [0001] The invention belongs to the technical field of metal strip straightening machines, and in particular relates to a straightening method of a metal strip roller-type combined straightening machine. Background technique: [0002] At present, the straightening scheme adopted by the metal strip-roller combination straightening machine is a straightening method in which the reduction of the straightening roller decreases and the rolled piece is alternately bent. This straightening method is adopted [0003] , in the straightening process, as the bending curvature of the straightened strip decreases, the moving speed of the strip between the straightening rollers will change. If centralized transmission is adopted, the speed of each straightening roller is the same, and the Negative torque will be generated during the process, causing the strip to slip on the straightening roller surface, causing noise, thereby reducing the straightening quality of the stri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D1/02B21B37/58
Inventor 王效岗郝建军黄庆学胡鹰
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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