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Method and device for rectifying deviation of steel band

A deviation correction device and strip steel technology, which is applied in the field of strip deviation correction, can solve problems affecting production efficiency and strip quality, scratches on the surface of the strip steel, and slow response to deviation correction, so as to improve the deviation correction accuracy and quality, and the space size of the device The effect of small size and fast response speed of deviation correction

Inactive Publication Date: 2007-07-25
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology uses an automatic machine that adjusts the positioning of magnetic sheets during rolling without requiring any external equipment like pumps or motors. It achieves this through direct excitation from electric current passing through it's own wires. By controlling how quickly the sheet passes over these wire strips with tiny teeth at its edges, the system becomes more accurate than traditional methods for correcting problems such as slip and edge shifting caused by poorly formed surfaces. Additionally, due to their compact design, they don’t have extra parts needed outside them themselves, making maintenance easier compared to other systems. Overall, this new method provides better performance and efficiency when used properly.

Problems solved by technology

This patents describes different technical problem addressed in these documents related to improving the accuracy and speed at which strip products can pass over without damage caused by any irregularities such as bending or distortion. These issues include variations in thickness due to factors like temperature changes, humidity levels, wear particles, and other environmental conditions. Current systems rely heavily upon hydraulosurgery (liquification) techniques alone but require multiple corrections with each step, leading to increased costs and downtime.

Method used

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  • Method and device for rectifying deviation of steel band
  • Method and device for rectifying deviation of steel band
  • Method and device for rectifying deviation of steel band

Examples

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Effect test

Embodiment 1

[0026] Referring to Fig. 5, the present invention is applied to the deflection correction of the pickling loop section of cold-rolled silicon steel sheet. Steel strip 1 passes through tension roller 12, spiral magnetic correction roller 13, 15, 17, and then through turning roller 14 and 16, enters degreasing tank 18, washing tank 19, pickling tank 20, washing tank 21. Among them, the deviation correction rollers 13, 15, 17 correct the deviation of the strip steel 1 at the two ends of the loop, so that the strip steel 1 enters the degreasing tank and the pickling tank centeredly, thereby improving the deviation correction accuracy and improving the degreasing and pickling effects of the strip steel 1 surface. Among the figure: 22 is a hoist, and 23 is a looper tension trolley.

Embodiment 2

[0028] Referring to Fig. 6, the present invention is applied to unwinding deviation correction. An uncoiler 31 , a spiral magnetic deviation correction roller 32 , and a strip steel offset position sensor 33 . The correction roller 32 guarantees that the uncoiled strip is centered and moves to the next procedure.

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Abstract

An offset correcting method and apparatus for band steel features that the band steel is moving in such manner that it is tightly close to a cylindrical roller by a certain wrap angle, and said cylindrical roller is composed of an external hollow cylindrical roller made of non-magnetic material and an internal cylindrical roller able to generate spiral magnetic field, which can magnetically drive the band steel to move. Regulating the direction of spiral magnetic field can correct the offset of band steel.

Description

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Claims

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Application Information

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Owner BAOSHAN IRON & STEEL CO LTD
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