// SPEC · 耐火原料
板状刚玉微粉 D50<3μm 活性微粉
板状刚玉活性微粉D50<3μm，Al₂O₃≥99.2%，用于超低水泥浇注料，提升流动性与生坯强度，适用于钢包、电弧炉及连铸冲击区。
// 主要特性
- D50<3μm reactive particle size enabling densification through particle size engineering
- High specific surface area promoting sintering activity and densification at 1400–1600°C
- Ultra-low impurity profile Fe₂O₃ ≤0.02% critical for aluminium and specialty glass industries
- Compatible with colloidal silica and hydratable alumina binder systems for cement-free castables
// 技术规格
| SiO2 (%) | ≤0.04 |
| Al2O3 (%) | ≥99.2 |
| Fe2O3 (%) | ≤0.02 |
| Available Grain Sizes | D50<3μm |
| Bulk Density (g/cm³) | ≥3.40 |
// 应用领域
Ultra-low cement and zero-cement castable matrixSteel ladle purging plug and bottom block castablesEAF delta section spray repair mixesContinuous casting tundish impact pad castablesPetrochemical fluid catalytic cracking (FCC) reactor lining
// 快速规格
最高温度1750°C
体积密度3.40 g/cm³
执行标准GB/T 23297
// 获取报价