METHOD OF MANUFACTURING A SLAG DISCHARGE DOOR

Title:

METHOD OF MANUFACTURING A SLAG DISCHARGE DOOR

Document Type and Number:

WIPO Patent Application WO/2013/048067

Kind Code:

A3

Abstract:

The present invention relates to a method of manufacturing a slag discharge door, which is a method for manufacturing a slag discharge door that is provided separately from a molten iron discharge opening in an electrical furnace and opens and closes a slag discharge opening for discharging slag. The method of manufacturing a slag discharge door, which vertically moves up and down on the slag discharge opening and opens and closes the slag discharge opening, includes the steps of: forming a door body through forging, forming a coolant passage, a coolant inlet, and a coolant outlet in the door body by drilling, and then finishing a passage that blocks a portion that is open toward an outer surface of the door body.

Inventors:

KI JOON-SEONG (KR)
LEE HAE-YANG (KR)
HWANG JIN-ILL (KR)

Application Number:

PCT/KR2012/007636

Publication Date:

May 23, 2013

Filing Date:

September 24, 2012

Export Citation:

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Assignee:

HYUNDAI STEEL CO (KR)
SEOUL ENGINEERING CO LTD (KR)
KI JOON-SEONG (KR)
LEE HAE-YANG (KR)
HWANG JIN-ILL (KR)

International Classes:

C21C5/52; F27B3/19; F27D1/12

Foreign References:

KR20100046844A	2010-05-07
KR20080098113A	2008-11-07
JPH09133475A	1997-05-20
KR200250763Y1	2001-12-13
KR20100065849A	2010-06-17
KR19990038390U	1999-10-25

Other References: