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Title:
HOT-ROLLED STEEL SHEET PRODUCTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/043210
Kind Code:
A1
Abstract:
Provided is a hot-rolled steel sheet production apparatus in which excellent drainage performance can be achieved in a hot-rolled steel sheet production line thereof. The hot-rolled steel sheet production apparatus comprises a row of hot finishing mills and a cooling device which is arranged so as to cool a steel sheet, wherein the cooling device comprises an upper-surface-side nozzle which enables the spraying of cooling water from above, a lower-surface-side nozzle which enables the spraying of the cooling water from underneath, an upper surface guide which is arranged between a pass line and the upper-surface-side nozzle, a lower surface guide which is arranged between the pass line and the lower-surface-side nozzle, and a forced drainage means which can forcibly suck the cooling water sprayed through the upper-surface-side nozzle and can discharge the sucked cooling water, and wherein the forced drainage means comprises a water-conducting passage having an opening arranged on a side from which the cooling-water flows into the water-conducting passage and an opening arranged on a side from which the cooling water flows out of the water-conducting passage and a suction unit which can forcibly discharge the cooling water that has flowed into the water-conducting passage.

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Inventors:
KOBAYASHI KAZUAKI (JP)
HOSHO TOMOFUMI (JP)
HARAGUCHI YOICHI (JP)
IKEMOTO YUJI (JP)
KUBO HISAYUKI (JP)
Application Number:
PCT/JP2011/070753
Publication Date:
April 05, 2012
Filing Date:
September 12, 2011
Export Citation:
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Assignee:
SUMITOMO METAL IND (JP)
MITSUBISHI HITACHI METALS (JP)
KOBAYASHI KAZUAKI (JP)
HOSHO TOMOFUMI (JP)
HARAGUCHI YOICHI (JP)
IKEMOTO YUJI (JP)
KUBO HISAYUKI (JP)
International Classes:
B21B45/02; B21B39/14
Foreign References:
JPH0429871B21992-05-20
JPS5930415A1984-02-18
JPH078374B21995-02-01
Attorney, Agent or Firm:
YAMAMOTO, Noriaki et al. (JP)
Yamamoto 典輝 (JP)
Download PDF:
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