Title:
鋼板の冷却方法および装置
Document Type and Number:
Japanese Patent JP4678112
Kind Code:
B2
Abstract:
The present invention relates to a method for cooling a steel plate comprising the steps of: forming a water pool with jets of cooling water being injected to impinge on one another by using one slit nozzle and a plurality of induced laminar flow nozzles, the slit nozzle being provided in a position on an upper surface side of the steel plate, and the induced laminar flow nozzles being provided in a position on a lower surface side of the steel plate along a transfer direction and a direction perpendicular to the transfer direction; and passing the steel plate into the water pool, wherein when a top portion of the steel plate' passes over the induced laminar flow nozzles located at least on the side of highest upstream, a volume of the cooling water to be injected from each of the induced laminar flow nozzles is reduced. According to the method of the present invention, when on-line cooling is performed for a hot rolled steel plate, the top portion of the steel plate can be prevented from being super cooled, and the steel plate can therefore be uniformly cooled.
Inventors:
Ao Tsuyama
Akio Fujibayashi
Akira Tagane
Ko Takahashi
Kazuo Omata
Akio Fujibayashi
Akira Tagane
Ko Takahashi
Kazuo Omata
Application Number:
JP2001290004A
Publication Date:
April 27, 2011
Filing Date:
September 21, 2001
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B21B45/02; C21D1/667; C21D9/46; C21D1/60; C21D9/573
Domestic Patent References:
| JP11347629A | ||||
| JP60043435A | ||||
| JP10314825A | ||||
| JP1317615A |
Attorney, Agent or Firm:
Yasuo Ishikawa