The AW series Calcined α-Al₂O₃ micro powder is the result of the national "7-5" research project. In 1990, through national identification, the technology reached the international advanced level. Calcined alumina is based on industrial aluminum hydroxide or industrial aluminum oxide as raw materials. Calcined at the appropriate temperature to produce crystalline stable a-alumina products ; Calcined alumina is made from calcined a-alumina by ball grinding. Calcined alumina generally used in shaped refractories such as sliding gate, corundum brick etc. Or with reactive alumina used in unshaped refractories.
焼成アルミナを使用して樹脂結合製品を製造する場合、その水分は低く、均一に混合しやすく、体積安定性が高いです。不定形耐火物用の反応性アルミナまたはシリカ粉末と併用すると、より細かい粉末で粒子のグラデーションを形成し、最密充填を実現し、水の添加量と多孔度を減らし、線形変形速度を減らし、強度を高めることができます。
物理的性質と化学組成
| Item | AW-800SG | AW-9FG | AW-4M |
| Al₂O₃（%） | 99.7 | 99.6 | 99.5 |
| SiO₂（%） | 0.10 | 0.10 | 0.10 |
| Fe₂O₃（%） | 0.03 | 0.03 | 0.04 |
| Na₂O（%） | 0.05 | 0.18 | 0.28 |
| D50(μm) | 3.5 | 4.0 | 4.5 |
注釈：
·Particle size can also be processed according to customer requirements.
·検査基準:GB/T3044-2020;GB/T 24487-2022
·Packing:Inner plastic and external weaving 25KG/bag(can be customized according to customer requirements)
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