Title:
COOLING DEVICE FOR THICK STEEL PLATE
Document Type and Number:
WIPO Patent Application WO/2006/137187
Kind Code:
A1
Abstract:
A cooling device for a thick steel plate, the cooling device having pairs of restraining rollers, each pair having an upper roller and a lower roller between which the steel plate hot rolled is passed while being restrained, and also having spray nozzles for spraying water to the upper and lower surfaces of the steel plate passed between the restraining rollers adjacent to each other in the forward-rearward direction of plate passage. The spray nozzles are arranged in the following way: (1) The total area of an impingement surface on which water jet flows coming from the spray nozzle on the upper surface side impinge is in the range of 4 - 90% of the steel plate surface area between outer circumferential surfaces of rollers the distance between which rollers is the smallest among the distances between the pairs of restraining roller, and (2) The total area of an impingement surface on which water jet flows coming from the spray nozzles on the lower surface side impinge is in the range of 4 - 100% of the steel plate surface area between outer circumferential surfaces of rollers the distance between which rollers is the smallest among distances between the pairs of restraining roller.
Inventors:
SERIZAWA YOSHIHIRO (JP)
YAMAMOTO RYUJI (JP)
MATSUNAGA HISAYOSHI (JP)
OGAWA SHIGERU (JP)
AKASE YUTAKA (JP)
UENO HIRONORI (JP)
YAMAMOTO RYUJI (JP)
MATSUNAGA HISAYOSHI (JP)
OGAWA SHIGERU (JP)
AKASE YUTAKA (JP)
UENO HIRONORI (JP)
Application Number:
PCT/JP2005/024178
Publication Date:
December 28, 2006
Filing Date:
December 22, 2005
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
SERIZAWA YOSHIHIRO (JP)
YAMAMOTO RYUJI (JP)
MATSUNAGA HISAYOSHI (JP)
OGAWA SHIGERU (JP)
AKASE YUTAKA (JP)
UENO HIRONORI (JP)
SERIZAWA YOSHIHIRO (JP)
YAMAMOTO RYUJI (JP)
MATSUNAGA HISAYOSHI (JP)
OGAWA SHIGERU (JP)
AKASE YUTAKA (JP)
UENO HIRONORI (JP)
International Classes:
B21B45/02
Foreign References:
| JP2005296976A | 2005-10-27 | |||
| JP2004001082A | 2004-01-08 | |||
| JP2004330238A | 2004-11-25 | |||
| JP2006035311A | 2006-02-09 | |||
| JPH11347629A | 1999-12-21 | |||
| JP2004001082A | 2004-01-08 |
Other References:
See also references of EP 1908535A4
Attorney, Agent or Firm:
Aoki, Atsushi (Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chom, Minato-ku Tokyo, JP)
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