Title:
A METHOD AND A SKID MEMBER FOR REDUCING TEMPERATURE DIFFERENCE IN A HEATING SUBJECT AND A SKID APPARATUS USING THEM
Document Type and Number:
WIPO Patent Application WO2004011684
Kind Code:
A8
Abstract:
An improved method and a skid member for minimizing the temperature difference between a skid-contacting region and other regions in a hot material to be heated such as a slab or billet within a reheating furnace and a skid apparatus using the same. The skid member has at least one ventilation channel for restraining heat transfer toward a lower portion of the skid member for supporting or carrying the hot material in the reheating furnace and allowing passage of hot gas through the same to reduce the temperature difference between a contact region and a non-contact region of the hot material. The invention restrains heat transfer from the hot material to a skid coolant pipe and introduces hot gas within the reheating furnace into the skid member to compensate heat loss in an upper portion of the skid member, thereby preventing temperature drop in a contact region between a top face of the skid member and an underside of the hot material so that the rolling threading ability and quality of the hot material can be improved in subsequent processes.
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Inventors:
CHOI SEOUNG-DUK (KR)
CHANG HAE-KWUN (KR)
MIN KYUNG-ZOON (KR)
YIM SEE-WOO (KR)
CHANG HAE-KWUN (KR)
MIN KYUNG-ZOON (KR)
YIM SEE-WOO (KR)
Application Number:
PCT/KR2003/001472
Publication Date:
May 27, 2004
Filing Date:
July 23, 2003
Export Citation:
Assignee:
POSCO (KR)
CHOI SEOUNG-DUK (KR)
CHANG HAE-KWUN (KR)
MIN KYUNG-ZOON (KR)
YIM SEE-WOO (KR)
CHOI SEOUNG-DUK (KR)
CHANG HAE-KWUN (KR)
MIN KYUNG-ZOON (KR)
YIM SEE-WOO (KR)
International Classes:
B21B1/00; C21D1/00; C21D9/00; F27B9/20; F27B9/36; F27D3/02; (IPC1-7): C21D9/673
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