锆石耐火砖以锆石为原料。它是一种酸性耐火砖，通常用于玻璃窑。科瑞氧化锆砖的特点是抗机械冲击性能好、化学结构稳定、导热系数低。
| 项目 | 致密锆石砖 | 锆石砖 | 锆刚玉砖 | 锆莫来石砖 | 半锆石砖 |
|---|---|---|---|---|---|
| 氧化锆2 % | ≥65 | ≥60 | ≥30 | ≥18 | ≥15-20 |
| Al2O3 % | - | - | ≥45 | ≥55 | ≥50-60 |
| SiO2 % | - | ≤38 | ≤25 | ≤25 | ≤20 |
| 铁2O3 % | ≤0.3 | ≤0.5 | ≤0.5 | 1.2 | 1.2 |
| 表观孔隙率 % | ≤18 | ≤22 | ≤20 | ≤17 | ≤20 |
| 体积密度 g/cm3 | ≥3.7 | ≥3.5 | ≥3.2 | ≥2.7 | ≥2.7 |
| 冷抗压强度 MPa | ≥100 | ≥100 | ≥100 | ≥100 | ≥100 |
| 加载°C时的耐火度 | ≥1650 | ≥1620 | ≥1650 | ≥1650 | 1550 |
1.Excellent Thermal Shock Resistance;
2.Good Mechanical Shock Resistance;
3.Stable Chemical Structure;
4.Low Thermal Conductivity;
Zirconia bricks are used for key parts of glass kilns, steel furnaces, picture tube furnaces, metallurgical furnaces, and other high-temperature industrial furnaces. It can be used for top, bottom and lining of furnaces.