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Product Description of Polycrystalline Mullite Composite Brick Furnace Refractory Brick For Glass Kilns
Polycrystalline mulite composite brick is made of high-purity fused mulite, Australian zircon sand. slabcorundum, composite ulra fine powder and special additive by high-pressure forming and high-temperaturesintering.
It is mainly used in small furnace tongwe and other key parts of
glass kiln. lt has high temperature resistance.erosion resistance,
high temperature corrosion resistance, good thermal shock stablity
and excellent creepresistance at high temperature.
Product Specification of Polycrystalline Mullite Composite Brick Furnace Refractory Brick For Glass Kilns
| Item | RSDJM-70 |
| Al₂O₃,% ≥ | 70 |
| SiO2, % ≤ | 23 |
| ZrO2, % ≥ | 6 |
| Fe₂O₃, % ≤ | 0.2 |
| BD,g/cm³ ≥ | 2.95 |
| AP,% ≤ | 13 |
| CCS,MPa ≥ | 120 |
| 0.2MPa RUL,℃ ≥ | 1700 |
| Creep Rate 1200℃x50h,% ≤ | 0.5 |
| TSR(1100℃, Water Cooling) ≥ | 15 |
