发明名称 |
Fused-cast-alumina-zirconia-silica refractory and method for evaluating it |
摘要 |
A method for evaluating a fused-cast-alumina-zirconia-silica refractory for the properties as a furnace material, based on non-luminous object color represented by L*a*b* system as defined in JIS Z8729, which comprises representing the non-luminous object color of the fused-cast-alumina-zirconia-silica refractory by the psychometric lightness (L*) represented by one of coordinates in a three-dimensional color space having a perceptively substantially uniform rate, and/or the chroma index (C*ab=(a*<2>+b*<2>)<1/2>) as calculated from chromaticness indices a* and b* represented by two coordinates in the three-dimensional color space having a perceptively substantially uniform rate; comparing the psychometric lightness (L*) and/or the chroma index (C*ab) with preliminarily set ranges thereof, respectively; and judging that the fused-cast-alumina-zirconia-silica refractory is suitable as a furnace material when the psychometric lightness (L*) and/or the chroma index (C*ab) are within the set ranges. |
申请公布号 |
EP0980855(A3) |
申请公布日期 |
2000.08.16 |
申请号 |
EP19990116112 |
申请日期 |
1999.08.18 |
申请人 |
ASAHI GLASS COMPANY LTD. |
发明人 |
ARAI, TOMONORI;BEPPU, YOSHIHISA |
分类号 |
G01J3/46;C03B5/43;C04B35/109;C04B35/657;G01N21/27 |
主分类号 |
G01J3/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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