Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ALUMINA-ZIRCONIA-SILICA FUSED CAST REFRACTORY AND GLASS MELTING FURNACE
Document Type and Number:
WIPO Patent Application WO/2019/092908
Kind Code:
A1
Abstract:
Provided are: an alumina-zirconia-silica (AZS) fused cast refractory in which generation of cracks is further prevented during production of the AZS fused cast refractory and in which grinding and polishing parts are reduced; and a glass melting furnace using the same. This AZS fused cast refractory comprises, in mass% on an oxide basis, 30 to 75% of Al2O3, 20 to 55% of ZrO2, 5 to 15% of SiO2, 0.12 to 1.52% of Na2O, and 0.11 to 1.46% of K2O, and satisfies formulas (1) and (2). 0.080≤(Na2O+K2O/1.52)/SiO2≤0.140 (1) 0.2≤(K2O/1.52)/(Na2O+K2O/1.52)≤0.6 (2) (In formulas (1) and (2), the chemical formulas represent the contents (mass%) of the chemical formulas in the refractory.)

Inventors:
TANIMOTO Toshiro (6-1, Umei 5-chome, Takasago-sh, Hyogo 55, 〒6768655, JP)
MATANO Kenji (6-1, Umei 5-chome, Takasago-sh, Hyogo 55, 〒6768655, JP)
Application Number:
JP2018/020332
Publication Date:
May 16, 2019
Filing Date:
May 28, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
AGC CERAMICS CO., LTD. (1-23, Shiba 4-chome Minato-k, Tokyo 14, 〒1080014, JP)
International Classes:
C04B35/109; C03B5/43
Domestic Patent References:
WO2009072627A12009-06-11
Foreign References:
JP2011020918A2011-02-03
JPH01252574A1989-10-09
JPS6259576A1987-03-16
JP2001220249A2001-08-14
JPH10101439A1998-04-21
JPH11343174A1999-12-14
Attorney, Agent or Firm:
SAKURA PATENT OFFICE, P.C. (Yoshizawa Bldg, 18-14 Uchikanda 1-chome, Chiyoda-k, Tokyo 47, 〒1010047, JP)
Download PDF:



 
Previous Patent: IGNITION DEVICE

Next Patent: OIL-FILLED TRANSFORMER