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Universal mill type

A rolling mill and universal technology, applied in the direction of metal rolling stand, metal rolling mill stand, metal rolling, etc., can solve the problems of large dimensional tolerance range and poor control accuracy, so as to improve product precision, performance, rolling The effect that it is easy to manufacture high-strength section steel

Inactive Publication Date: 2011-07-20
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of large dimensional tolerance range and poor control precision in rolling H-beams with universal rolling mills, the present invention provides a brand new type of universal rolling mills

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A type of universal rolling mill, such as figure 1 and figure 2 As shown, an eight-roll structure is adopted, and two horizontal support rolls, the upper horizontal support roll 1 and the lower horizontal support roll 6, are added beside the two horizontal work rolls 2 and 5, and the upper horizontal support roll 1 is located directly above the upper horizontal work roll 2 , the roll shafts 9 on both sides of the upper horizontal back-up roll are inserted into the upper horizontal back-up roll bearing housing 8 with bearings, the lower horizontal back-up roll 6 is located directly below the lower horizontal work roll 5, and the roll shafts on both sides of the lower horizontal back-up roll 17 is inserted in the lower horizontal back-up roll bearing seat 15 that bearing is housed, and the center of four horizontal rolls is on a straight line; A support vertical roll 4 is respectively added on the outside of two work vertical rolls 3, and work vertical roll and support v...

Embodiment 2

[0033] A kind of universal rolling mill type, structure and working method are identical with embodiment 1, difference is:

[0034] The roll diameter of the described horizontal support roll is Φ900mm, and the roll diameter of the horizontal work roll in contact with it is Φ880mm.

[0035] The roll diameter of the support vertical roll is Φ800mm, and the roll diameter of the working vertical roll in contact with it is Φ780mm.

Embodiment 3

[0037] A kind of universal rolling mill type, structure and working method are identical with embodiment 1, difference is:

[0038] The roll diameter of the described horizontal backup roll is Φ710mm, and the roll diameter of the horizontal work roll in contact with it is Φ690mm.

[0039] The roll diameter of the supporting vertical roll is Φ530mm, and the roll diameter of the working vertical roll in contact with it is Φ510mm.

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Abstract

The invention relates to a universal mill type, which belongs to the technical field of structural steel hot-rolling devices. The universal mill type adopts an eight-roller structure. Two horizontal supporting rollers, namely an upper horizontal supporting roller and a lower horizontal supporting roller, are arranged beside two horizontal working rollers. The upper horizontal supporting roller is positioned right above the upper horizontal working roller, and the lower horizontal supporting roller is positioned under the lower horizontal working roller. The centers of the four horizontal rollers are in a straight line. Two supporting rollers are separately arranged outside two vertical working rollers, and the centers of the four vertical rollers are in a straight line. The roller diameter of each supporting roller is longer than or equal to the roller diameter of each working roller in contact with the supporting roller. When the mill of the invention is used, the mill allows relatively large rolling reduction, makes the dimensional control of rolled pieces more precise and the rolling to high-strength structural steel easier, realizes the rolling control and the cooling control more easily, is beneficial to improvement of product precision, reduces the rolling pass, reduces production cost, enhances the performance of the structural steel, better realizes the rolling of the structural steel made of high strength materials, meets use requirements of users, and promotes energy conservation and environmental protection.

Description

technical field [0001] The invention relates to a type of universal steel rolling mill, which belongs to the technical field of hot-rolled profiled steel devices. Background technique [0002] When using a universal rolling mill to roll section steel, what is generally used at present is a rolling mill type in which two horizontal rolls and two vertical rolls are combined as work rolls. During the rolling process, the reduction should not be too large, and when the tolerance is required to be below ±0.7, it is difficult to control the size stably. For example, in the production of some forklift mast channel steel, elevator guide rails and H-shaped steel used in the machinery industry, it cannot meet the needs of users. At the same time, the size of the section steel cannot be controlled within a smaller tolerance range, which affects the improvement of product quality. Contents of the invention [0003] In order to overcome the problems that the universal rolling mill ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B13/12
Inventor 曲为壮李江波
Owner SHANDONG IRON & STEEL CO LTD
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