Title:
MANUFACTURING APPARATUS FOR HOT-ROLLED STEEL PLATE AND MANUFACTURING METHOD FOR STEEL PLATE
Document Type and Number:
WIPO Patent Application WO/2011/007648
Kind Code:
A1
Abstract:
Provided are a manufacturing apparatus with high drainability for a hot-rolled steel plate and a manufacturing method for a steel plate, in a hot-rolled steel plate production line. In a manufacturing apparatus for a hot-rolled steel plate, a last stand thereof has a pair of raised portions in a housing, and a cooling device has a plurality of upper surface cooling nozzle arrays which are arranged in a transfer direction and which inject a cooling water onto an upper surface of a steel plate, a plurality of lower surface cooling nozzle arrays which are arranged along the transfer direction and which inject the cooling water onto the lower surface of the steel plate, and an upper surface guide on the upper surface side of the steel plate. The end of the cooling device on the last stand side is arranged between the raised portions. When the uniform cooling width is (W), the average gap distance between the ends of the uniform cooling width and the raised portions is (Wsw), the gravitational acceleration is (g), the average water rate density at the uniform cooling width is (Qq), and the value determined from (Wsw) and the average distance (h) between the upper surface guide and the upper surface of the steel plate is (C), a predetermined relationship is satisfied.
Inventors:
HOSHO, Tomofumi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
寶諸 知史 (〒41 大阪府大阪市中央区北浜４丁目５番３３号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
HARAGUCHI, Yoichi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
寶諸 知史 (〒41 大阪府大阪市中央区北浜４丁目５番３３号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
HARAGUCHI, Yoichi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
Application Number:
JP2010/060564
Publication Date:
January 20, 2011
Filing Date:
June 22, 2010
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
住友金属工業株式会社 (〒41 大阪府大阪市中央区北浜４丁目５番３３号 Osaka, 〒5410041, JP)
HOSHO, Tomofumi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
寶諸 知史 (〒41 大阪府大阪市中央区北浜４丁目５番３３号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
住友金属工業株式会社 (〒41 大阪府大阪市中央区北浜４丁目５番３３号 Osaka, 〒5410041, JP)
HOSHO, Tomofumi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
寶諸 知史 (〒41 大阪府大阪市中央区北浜４丁目５番３３号 住友金属工業株式会社内 Osaka, 〒5410041, JP)
International Classes:
B21B45/02; B21B1/26; B21B39/08; B21B39/14
Attorney, Agent or Firm:
HOSHINO, Tetsuro et al. (3rd Floor Oak Building Kyobashi, 16-10, Kyobashi 1-chome, Chuou-k, Tokyo 31, 〒1040031, JP)
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