Title:
METHOD AND APPARATUS FOR COOLING THICK STEEL PLATE
Document Type and Number:
Japanese Patent JP2016187822
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus for cooling a thick steel plate that achieve improvement of the quality of a cooled thick steel plate.SOLUTION: The method for cooling a thick steel plate of the present invention comprises a step of measuring the width-direction temperature distribution in a thick steel plate surface before being sprayed with cooling water, a step of estimating a temperature distribution in a plate thickness- direction internal position of a thick steel plate after being sprayed with cooling water on the basis of the temperature distribution before being sprayed with the cooling water and the water amount density distribution of a cooling header, and a step of adjusting the width-direction water amount density distribution of a cooling header on the surface side so as to reduce an estimated temperature deviation of the thick steel plate after being sprayed with cooling water in a plate thickness-direction internal position. The method for cooling a thick steel plate is characterized in that the step of estimating the temperature distribution after being sprayed with cooling water has a step of calculating a distribution of heat transfer coefficients in the surface of the thick steel plate considering the water amount density distribution and a step of deriving an estimated temperature distribution of a thick steel plate after being sprayed with cooling water in a plate thickness-direction internal position on the basis of the temperature distribution before being sprayed with the cooling water and the distribution of heat transfer coefficients.SELECTED DRAWING: Figure 4
Inventors:
TSUKUDA TAKEHIRO
YAMASHITA KEIICHI
OHARA TAKAHIRO
YAMASHITA KEIICHI
OHARA TAKAHIRO
Application Number:
JP2015068747A
Publication Date:
November 04, 2016
Filing Date:
March 30, 2015
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
B21B45/02; B21B1/38
Domestic Patent References:
| JP2007190597A | 2007-08-02 | |||
| JPS62263816A | 1987-11-16 | |||
| JP2011167754A | 2011-09-01 | |||
| JPH1043808A | 1998-02-17 | |||
| JP2000042621A | 2000-02-15 |
Attorney, Agent or Firm:
Hajime Amano
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kazuki Kagami
Kenichi Fujinaka
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kazuki Kagami
Kenichi Fujinaka
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