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Title:
VACUUM DEGASSING TANK AND METHOD FOR DEGASSING USING SAME
Document Type and Number:
WIPO Patent Application WO/2012/147180
Kind Code:
A1
Abstract:
This vacuum degassing tank includes a refractory, in which at least the part that comes into contact with molten slag comprises a carbon-containing magnesia refractory. The carbon-containing magnesia refractory contains 7-28 mass%, excluding 28 mass%, graphite and 3.5-14 mass% Al-Mg alloy, with the remainder comprising magnesia and incidental impurities, wherein the mass ratio calculated by dividing the mass of the Al-Mg alloy by the mass of the graphite is 0.5-2.0.

Inventors:
YAMAMOTO MASAAKI (JP)
TAKEUCHI HIRONORI (JP)
TAKI NORIO (JP)
TAMURA YOSHIHIRO (JP)
TAKEUCHI TOMOHIDE (JP)
Application Number:
PCT/JP2011/060278
Publication Date:
November 01, 2012
Filing Date:
April 27, 2011
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
YAMAMOTO MASAAKI (JP)
TAKEUCHI HIRONORI (JP)
TAKI NORIO (JP)
TAMURA YOSHIHIRO (JP)
TAKEUCHI TOMOHIDE (JP)
International Classes:
C04B35/043; C21C7/10; F27D1/00
Foreign References:
JP2007076980A2007-03-29
JPH0839214A1996-02-13
JP2009137768A2009-06-25
JP2000001363A2000-01-07
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
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Claims: