Project |
high alumina | |||||
LN-55A | LN-65A | LN-75A | GL-1 | GL-2 | ||
℃ ≥ refractoriness |
1770 | 1790 | 1790 | 1790 | 1790 | |
Al2O3%≥ | 55 | 65 | 75 | 70 | 75 | |
Mpa≥ Flexural strength |
110℃×24h | 0.5 | 0.69 | 1.0 | 1.0 | 1.0 |
1200℃×3h | -- | -- | -- | -- |
1.5 1500℃×3h |
|
1400℃×3h | 3.0 | 4.0 | 4.0 | 1.0 | ||
% Heating line change rate |
1200℃×3h | -- | -- | |||
1300℃×3h | -- | -- | ||||
1400℃×3h | +1∽-5.0 | -- | ||||
Bonding Time (minutes) |
1∽3 | 1∽2 | ||||
% Particle size |
-0.1mm | 100 | 100 | |||
+0.5mm | ≤2 | ≤1 | ||||
-0.074mm | ≥50 | ≥50 | ||||
350℃W/mk Thermal conductivity |
-- | ≤0.34 | ||||
Use |
Used in blast furnace and other hot-work kiln High-alumina bricks |
|||||
Characteristics |
insulation |