剛玉磚
項目 | 99剛玉磚 | 90剛玉磚 | 剛玉莫來石磚 |
Al2O3 % | ≥99 | ≥90 | ≥94 |
SiO2 % | ≤0.2 | ≤8 | ≤4 |
Fe2O3 % | ≤0.2 | ≤0.2 | ≤0.2 |
體密 g/cm3 | ≥3.2 | ≥3 | ≥3.2 |
氣孔率 % | ≤19 | ≤18 | ≤13 |
耐壓強度 MPa | ≥100 | ≥100 | ≥100 |
(0.2Mpa,0.6%)荷重開始軟化溫度 °C | ≥1700 | ≥1700 | ≥1700 |
項目 | 99剛玉磚 | 90剛玉磚 | 剛玉莫來石磚 |
Al2O3 % | ≥99 | ≥90 | ≥94 |
SiO2 % | ≤0.2 | ≤8 | ≤4 |
Fe2O3 % | ≤0.2 | ≤0.2 | ≤0.2 |
體密 g/cm3 | ≥3.2 | ≥3 | ≥3.2 |
氣孔率 % | ≤19 | ≤18 | ≤13 |
耐壓強度 MPa | ≥100 | ≥100 | ≥100 |
(0.2Mpa,0.6%)荷重開始軟化溫度 °C | ≥1700 | ≥1700 | ≥1700 |
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