Title:
CASTABLE REFRACTORY
Document Type and Number:
WIPO Patent Application WO/2022/215727
Kind Code:
A1
Abstract:
Provided is a castable refractory that exhibits adequate strength after hardening and has excellent corrosion resistance to slag, and in which slag penetration and the adhesion of buildup are suppressed. The castable refractory contains: alumina including calcined alumina; hydrophilic graphite; spinel; and alumina cement. The content of the hydrophilic graphite is 1-10 mass%, the content of the spinel is 18-37 mass%, the content of the alumina cement is 5-11 mass%, the content of magnesia is 8 mass% or less, and the content of the calcined alumina is 10 mass% or less.
Inventors:
NAKAMURA YOSHIYUKI (JP)
MIYAMOTO YOKO (JP)
MATSUNAGA HISAHIRO (JP)
NISHIMURA MASAFUMI (JP)
FUJII MASAFUMI (JP)
MIYAMOTO YOKO (JP)
MATSUNAGA HISAHIRO (JP)
NISHIMURA MASAFUMI (JP)
FUJII MASAFUMI (JP)
Application Number:
PCT/JP2022/017260
Publication Date:
October 13, 2022
Filing Date:
April 07, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
SHINAGAWA REFRACTORIES CO (JP)
SHINAGAWA REFRACTORIES CO (JP)
International Classes:
C21C7/00; B22D41/02; C01B32/21; C04B35/66; F27D1/00
Foreign References:
| JPH0450178A | 1992-02-19 | |||
| JP2018154548A | 2018-10-04 | |||
| JP2004307293A | 2004-11-04 | |||
| CN101417884A | 2009-04-29 | |||
| JP2000256071A | 2000-09-19 |
Other References:
MUKHOPADHYAY SUNANDA: "Effect of surface-treated graphites on the properties of carbon-containing monolithic refractory materials-A comprehensive comparison", INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, vol. 14, no. 4, 1 July 2017 (2017-07-01), US , pages 719 - 730, XP055976122, ISSN: 1546-542X, DOI: 10.1111/ijac.12691
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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