Zircon mullite brick selected high quality mullite sand and zircon powder as its main raw material. Molded by high pressure and sintered by high temperature , the zircon-mullite brick has such advantages as high bulk density, high strength, good thermal shock resistance, high temperature erosion resistance and good slag resistance. It is mainly used in long-life orifice rings, tank bottom, tank superstructure, perfume-bottle feeder, covers for working tanks and soda lime glass.
►Advantages
1,High strength
2,Good thermal shock resistance
3,High temperature erosion resistance
4,Good slag resistance
►Applications
The zircon mullite brick is mainly used in long-life orifice rings, tank bottom, tank superstructure, isostatically pressed, electrode blocks, perfume-bottle feeder, covers for working tanks and soda lime glass, etc.
| Item | ZM-17 | ZM-20 (Zirmul) | ZM-25 (Vista) | ZM-30 | ZM-11 |
| Chemical composition | Al2O3 | ≥70 | ≥59 | ≥57 | ≥47 | ≥72 |
| ZrO2 | ≥17 | ≥19.5 | ≥25.5 | ≥30 | ≥11 |
| SiO2 | ≤12 | ≤20 | ≤14.5 | ≤20 | ≤12 |
| Fe2O3 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.3 | ≤0.5 |
| Apparent Porosity％ | ≤17 | ≤17 | ≤17 | ≤18 | ≤17 |
| Bulk Density g/cm3 | ≥3.15 | ≥2.95 | ≥3.15 | ≥3.10 | ≥3.1 |
| Cold Crushing Strength Mpa | ≥90 | ≥100 | ≥120 | ≥100 | ≥90 |
| 0.1Mpa Refractoriness Under Load T0.6 ℃ | ≥1650 | ≥1650 | ≥1650 | ≥1650 | ≥1630 |
| Permanent Linear Change On Reheating(%)1500℃X2h | ±0.3 | ±0.3 | ±0.3 | ±0.3 | ±0.3 |
| 20-1000℃ Thermal Expansion % (x 10-6) | 0-0.6 | 0-0.6 | 0-0.6 | 0-0.6 | 0-0.6 |
| Thermal Conductivity (Average800℃) W / (M.K) | ≤ 2.19 | ≤ 2.19 | ≤ 2.1 | ≤ 2.1 | ≤ 2.19 |
| Pyrometric Cone Equivalent ℃ SK | 31 | 31 | 31 | 31 | 31 |
