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Plant for the reversible rolling of steel strip

A technology of rolling equipment and equipment, applied in the direction of metal rolling, metal rolling, metal rolling stands, etc., can solve the problems of long implementation time and fracture.

Inactive Publication Date: 2013-01-30
SIEMENS VAI METALS TECHNOLOGIES GMBH & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In addition to the long implementation time of this method, it also has the risk of breaking near the joint between the extension and the strip, especially when rolling under tension

Method used

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  • Plant for the reversible rolling of steel strip
  • Plant for the reversible rolling of steel strip
  • Plant for the reversible rolling of steel strip

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 A two-stand reversing rolling plant 1 is shown schematically, which allows the rolling of a metal strip M moving in a rolling direction A in a horizontal plane. The strip M is driven alternately in the positive direction (at figure 1 from left to right) and in the negative direction (in the figure 1 from right to left). The rolling plant 1 comprises a first stand 2 and a second stand 4 arranged one after the other in the rolling direction A. The first and second stands 2 and 4 are of the six-roller type. Each stand 2 , 4 is equipped with a pair of work rolls 6 and 7 , a pair of intermediate rolls 8 and 9 , and a pair of backup rolls 10 and 11 . The axes of the different rolls of a stand lie on the same vertical plane P of symmetry of the stand.

[0034]Upstream of the first and second stands 2 and 4 , the rolling plant 1 also comprises a strip unwinder 12 , a first winding / unwinding device 14 , a clamping device 16 . Downstream of the first and second sta...

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Abstract

A rolling plant has a reversible rolling mill with two stands. Each upright of the stands rests on a support structure via a bearing surface and is fastened thereto by a bolt or shank integral with the structure and cooperating with the upright via a removable fastening device. The bearing surface of each upright is provided on the lower face of the upright, without extending beyond the lateral faces directed along the rolling direction of the uprights, and is formed with a hole opening into a hollow housing provided in the upright and having an orifice opening onto a lateral face of the upright. The bolt or shank extends through the hole and projects into the housing, and the removable fastening device is placed inside the housing.

Description

technical field [0001] The present invention relates to a rolling plant of the type comprising a two-stand reversing rolling mill. Background technique [0002] The rolling of steel strip can be carried out on different types of rolling equipment. So-called "reversible" rolling plants allow the strip moving in the rolling direction to be rolled alternately in one direction and then in the other direction. The strip is rolled by passing through a rolling mill, wherein the rolling mill comprises a stand or two stands arranged one after the other in the rolling direction between two coiling / unwinding devices. [0003] Double-rack reversible equipment has a production capacity of 300,000 to 1,000,000 tons per year, compared to 200,000 to 600,000 tons per year of "single rack" reversible equipment. Double stand reversible equipment also has the advantage of reducing the number of passes rolled in one direction and then the other. Patent EP 0 618 018 B1 describes one such doubl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B31/06
CPCB21B31/06B21B1/24
Inventor B·罗西尼厄
Owner SIEMENS VAI METALS TECHNOLOGIES GMBH & CO