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Micro-tension equal-torque metal material straightening method

A metal material and micro-tension technology, applied in the field of metal material straightening, can solve the problems of unreasonable design structure, unfavorable energy saving, wear and other problems, and achieve the effect of improving straightening efficiency, prolonging life and reducing equipment maintenance costs.

Inactive Publication Date: 2011-09-07
PANGANG GRP ENG TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. The uneven torque distribution of each straightening roller will seriously affect the stress state of each straightening roller, and make the design structure of the equipment very unreasonable. Abnormal wear and damage will often occur during use, and it is not conducive to energy saving

Method used

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Examples

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Embodiment 1

[0024] figure 1 A method for straightening rails with slight tension and equal torque according to an exemplary embodiment of the present invention is schematically shown. Such as figure 1 As shown, in this embodiment, the rail straightening equipment includes 8 straightening rollers with the same roll diameter, and the rotation direction of each straightening roller is as follows: figure 1 shown. The rails run in a direction from left to right (ie, in the direction indicated by the double arrows shown in FIG. 2 ). The above-mentioned 8 straightening rollers arranged along the rail running direction are sequentially recorded as the first straightening roller, the second straightening roller, the third straightening roller, the fourth straightening roller, the fifth straightening roller, and the sixth straightening roller , the seventh straightening roller and the eighth straightening roller, their speeds are recorded as v 1 , v 2 , v 3 , v 4 , v 5 , v 6 , v 7 and v ...

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Abstract

The invention provides a micro-tension equal-torque metal material straightening method. In the method, by regulating the linear speeds of all straightening rollers, the liner speeds of the straightening rollers increase gradually in the feeding direction of a metal material under a condition that a metal material straightening process is carried out normally and the torques of the straightening rollers are equal. When the micro-tension equal-torque metal material straightening method provided by the invention is used, the micro-tension and equal-torque straightening of metal materials is realized; therefore, the sudden changes of the torques of the straightening rollers are avoided and the pressure stress and internal stress of the metal materials are avoided, the quality of the metal material is improved, the service life of straightening equipment is prolonged, and the straightening efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of metal material straightening, and more specifically, relates to a method for straightening metal materials with slight tension and equal torque. Background technique [0002] In the traditional metal material straightening process, due to the effect of the continuous beam of the metal material and the difference in the inverse bending rate of each point in the straightening process, the metal material running speed before and after each straightening roller is different, thus causing each straightening roller The straightening torque of the rolls varies greatly. The straightening torque of some straightening rollers will be very large, while the torque of other straightening rollers will be very small, and even the torque of individual straightening rollers will exceed the sum of the straightening torques of other straightening rollers, and individual straightening rollers will even produce Negative tors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D3/08
Inventor 周登科汤铁
Owner PANGANG GRP ENG TECH
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