Device for influencing the temperature distribution over a width

A technology of width and cooling device, used in temperature control, length measuring device, workpiece cooling device, etc., can solve the problems of unstable strip size and abnormal section.

Inactive Publication Date: 2010-03-24
SMS GRP GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is profile anomalies which interfere with the further processing of the strip and le

Method used

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  • Device for influencing the temperature distribution over a width
  • Device for influencing the temperature distribution over a width
  • Device for influencing the temperature distribution over a width

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] figure 1 A representation of one half of a slab 1 is shown, in which the temperature distribution is clearly indicated by means of color differences, the lighter the shade or gray gradient, the higher the temperature. The slab 1 has been heated unevenly when leaving the conventional furnace of the hot strip rolling plant, which can also be attributed to a too short residence time in the furnace, which may be the result of fully utilizing the furnace capacity. The slab 1 is hotter on the surface and on the edge 1a or on the slab edge 2 than in the core 1b, which is depicted darkly, for example. The slab 1 is therefore not heated optimally and uniformly.

[0045] During rolling by means of a blooming mill, the cross-sectional temperature of the slab 1 changes, so that the rolled slab 1 obtains, for example, a cross-sectional temperature which is the same as at figure 2 and image 3 The cross-section temperature shown in . The strip edge 2 is further cooled by rolling...

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PUM

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Abstract

The invention relates to a device (10) for influencing the temperature distribution over the width of a rolled material and/or a strip (11) or a slab, particularly in a hot strip mill, wherein at least one cooling device is provided and has nozzles (14) for applying a cooling means, wherein the nozzles (14) are arranged in such a manner or are controlled such that a cooling means is applied particularly to positions at which an increased temperature is detected. Furthermore, the invention relates to a device (10) for influencing the strip surface evenness by strip cooling, wherein according tothe surface evenness of the strip (11), the cooling device is controlled in such a manner that the uneven areas are reduced or removed. In addition, with this invention the strip contour can be influenced in a specific manner, wherein the strip (11) or the slab is cooled over the width thereof in such a manner that the strip contour better approximates a desired target contour.

Description

technical field [0001] The invention relates to a device according to claim 1 for influencing the temperature distribution, in particular in a hot strip mill train, in particular over the width of the strip. Background technique [0002] In strip production, especially in hot rolling plants, the strip is transported from the furnace to the coiler and processed on the rolling train. Here, for example, the temperature of the strip observed across its width and its temperature distribution play a decisive role for the processing and the resulting strip quality. [0003] Especially if a plant or hot strip mill train is to be produced at a high rate, furnaces, such as walking furnaces, are often the bottleneck of production. This then leads to the fact that although the slab is heated sufficiently, it does not have a uniform temperature distribution because it does not stay in the furnace long enough. [0004] This can result in a temperature distribution which is not uniform w...

Claims

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Application Information

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IPC IPC(8): B21B37/72B21B37/44
CPCB21B38/006B21B45/0218B21B2263/04B21B37/44B21B2261/21B21B37/74B21B38/02B22D11/1206B22D11/1246B21B45/0233B21B45/02B21B37/72
Inventor U·鲍姆加特尔J·塞德尔
Owner SMS GRP GMBH
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