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Chilled strip compound leveler

A straightening machine and strip steel technology, applied in the direction of metal rolling, manufacturing tools, metal processing equipment, etc., can solve the problem that the insertion amount of bending rolls and straightening rolls is difficult to control, and the shape of chilled steel plates cannot be effectively improved. To solve problems such as limited straightening ability, achieve the effect of improving plate shape quality, high yield ratio, and meeting commercial needs

Active Publication Date: 2018-03-13
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the industry adopts the method of configuring the tension leveler in the process section of the production unit to carry out deep processing of the shape straightening of the chilled strip steel after cold rolling, but the problem of the shape of the chilled steel plate cannot be effectively improved. The main reason is that the tension leveler The limited straightening capacity of the equipment and the mechanical properties and characteristics of this type of plate lead to a small range of elongation that can be set during the stretch-bending straightening process, and parameters such as the insertion amount of the bending roller and straightening roller and the process tension are difficult to control, etc. question,

Method used

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  • Chilled strip compound leveler

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 The compound straightening machine shown is an independent equipment, including frame archway 1, tension leveling unit, multi-roller straightening unit, roll system, roll box lifting adjustment hydraulic cylinder 3, roll box pressing depth adjustment turbine lifter 6 , Upper roller seat 7, lower roller seat 9, upper roller seat lifting adjustment hydraulic cylinder 8, lower roller seat swing adjustment turbine lifter 11. This equipment has no power drive system and is installed in the process section of the unit; the frame archway 1 is welded by steel plate and section steel to form a rigid frame; the compound straightening machine is equipped with a tension and straightening unit (two bending and two straightening) and a multi-roller straightening Straightening unit (eleven rollers); the tensioning and straightening unit is equipped with two pairs of bending roller boxes 2, which are arranged in opposite directions, and can be used at the same time, or...

Embodiment 2

[0027] On the basis of Example 1, the number of working rolls of the tension-leveling unit and the multi-roller straightening unit is changed. For the tension-leveling unit, two pairs of bending roll boxes are set to work, one straightening roll box works, and the other straightens The roll cassette is spare; for multi-roll straightening units, all rolls are working straightened.

Embodiment 3

[0029] On the basis of Example 1, the number of working rolls of the tension-leveling unit and the multi-roller straightening unit is changed. For the tension-leveling unit, a pair of bending roll boxes are set to work, one straightening roll box works, and the other straightens The roll cassette is spare; for multi-roll straightening units, all rolls are working straightened.

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PUM

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Abstract

The invention provides a compound straightener for cold and hard strip steel. The compound straightener comprises a rack and a compound straightening unit mounted inside the rack; the compound straightening unit comprises a tension straightening unit, a multi-roller straightening unit, a roller system, a roller system adjusting system, a roller system quick-opening system and a roller replacing trolley; five steering rollers are further mounted in the rack, and the tension straightening unit and the multi-roller straightening unit are distributed in intervals between the steering rollers; and according to bending rollers and straightening rollers, on a strip steel advancing line, lower rollers make contact with strip steel firstly, and upper rollers make contact with the strip steel later. The plate-shaped quality of the cold and hard strip steel can be obviously improved, the product quality level can be improved, and the commercial requirement of the market for the cold and hard strip steel can be met.

Description

technical field [0001] The invention relates to the field of cold-rolled steel strip production in the metallurgical industry, in particular to a compound straightening machine for improving the shape quality of chilled strip steel, which can be applied to chilled strip steel recoiling units, high-strength steel galvanizing units, and high-strength steel continuous annealing Units, etc., to improve strip steel shape units with high strength and low elongation. Background technique [0002] After cold rolling, the chilled steel strip has the characteristics of large internal stress, large yield strength, high yield ratio, low elongation, and curved surface. As the thickness of the strip becomes thinner, its characteristics become more obvious. , plate shape straightening becomes more and more difficult. It has always been a difficult problem in the industry to obtain commercial coils of this type of products through general shape straightening methods. [0003] At present, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B15/00B21D1/02
CPCB21B15/00B21D1/02
Inventor 刘首跃
Owner WISDRI ENG & RES INC LTD