Title:
HIGH ZIRCONIA FUSED CAST REFRACTORY
Document Type and Number:
WIPO Patent Application WO/2013/151106
Kind Code:
A1
Abstract:
Provided is a high zirconia fused cast refractory that is highly durable and is not prone to cracking during refractory manufacturing, when heating increases, when temperature varies during use, or when heating decreases during an operational pause. The high zirconia fused cast refractory is characterized by containing, as a chemical composition, 88 to 96.5 mass% of ZrO2, 2.5 to 9.0 mass% of SiO2, 0.4 to 1.5 mass% of Al2O3, 0.07 to 0.26 mass% of Na2O, 0.3 to 1.3 mass% of K2O, 0 to 0.3 mass% of Li2O in terms of outer percentage, 0.08 mass% or less of B2O3 in terms of outer percentage, and 0.08 mass% or less of P2O5 in terms of outer percentage, with the content of B2O3 + P2O5 being 0.1 mass% or less in terms of outer percentage.
Inventors:
TOMURA NOBUO (JP)
USHIMARU YUKIHIRO (JP)
HAYASHI SHINYA (JP)
USHIMARU YUKIHIRO (JP)
HAYASHI SHINYA (JP)
Application Number:
PCT/JP2013/060250
Publication Date:
October 10, 2013
Filing Date:
April 03, 2013
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
AGC CERAMICS CO LTD (JP)
AGC CERAMICS CO LTD (JP)
International Classes:
C04B35/657; C04B35/48
Domestic Patent References:
| WO2010116960A1 | 2010-10-14 | |||
| WO2012046786A1 | 2012-04-12 | |||
| WO2012046785A1 | 2012-04-12 |
Foreign References:
| JPS6259576A | 1987-03-16 | |||
| JPH08277162A | 1996-10-22 | |||
| JPS56129675A | 1981-10-09 | |||
| JPS63285173A | 1988-11-22 | |||
| JPH0672766A | 1994-03-15 | |||
| JPH092870A | 1997-01-07 | |||
| JP2007176736A | 2007-07-12 |
Other References:
See also references of EP 2835364A4
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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