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Rolling mill with cooling device and rolling process

A cooling device, rolling mill technology, used in metal rolling, metal rolling, rolls, etc.

Active Publication Date: 2012-05-30
ARCELORMITTAL INVESTIGACION Y DESARROLLO SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned mechanical scrapers are limited by many thermal and mechanical conditions, and need to be replaced quite frequently, and the rolling production needs to be stopped forcibly at the same time.

Method used

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  • Rolling mill with cooling device and rolling process
  • Rolling mill with cooling device and rolling process

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Embodiment Construction

[0026] Such as figure 1 As can be seen in the figure, the cooling device 1 according to the present invention includes a tank 2, which is connected to a cooling fluid container and a pump (not shown in the figure) through a supply pipe 3 . The aforementioned cooling fluid may be, for example, water, or a stable or unstable emulsion of water and oil with surfactants.

[0027] Opposite the fluid supply pipe 3, the tank 2 has a pair of curved plates 4 provided with a plurality of internal nozzles 5 which form and direct cooling fluid jets from the tank 2 towards the roll surface. From figure 2 As can be seen more clearly in , the nozzles 5 are preferably oriented perpendicular to the surface of the work roll in order to cool the work roll in a uniform manner.

[0028] Above these cooling nozzles 5 there are wiper nozzles 6 which are connected to the interior of the tank 2 which supplies these wiper nozzles with cooling fluid under pressure. The orientation of these wiping noz...

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PUM

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Abstract

The invention deals with a rolling mill (1) for metallic products comprising at least one pair of work rolls and at least one cooling device (2) projecting a plurality of cooling jets under pressure on at least one work roll, the cooling device projecting also at least one scraper jet between the cooling jets and the metallic product to be rolled, the scraper jets being oriented in the desired flow direction following a re-entrant angle towards the perpendicular to the surface of the work roll, as well as with a rolling process using said rolling mill (1).

Description

technical field [0001] The present invention relates to a rolling mill with an integrated cooling device, which can be used in the hot rolling of metal products such as steel sheets, but is not limited to this use and product. Background technique [0002] Such a hot rolling process involves heating a metal product and passing it through pairs of rotating work rolls to reduce the thickness of the heated metal product under pressure exerted by upper and lower work rolls. [0003] The work rolls are heated by their contact with the heated metal product and also by their rolling action, so the work rolls need to be continuously cooled in the most uniform manner. A cooling device consisting of a perforated box can be used to inject cooling fluid under pressure onto the work rolls during the rolling process. [0004] To prevent the cooling fluid used for cooling the rolls from coming into contact with the metal product to be rolled, a mechanical scraper is used. The mechanical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B27/10
CPCB21B27/10B21B2027/103
Inventor D·范德许伦P·范波克
Owner ARCELORMITTAL INVESTIGACION Y DESARROLLO SL