クロマイト砂は、主にクロムと鉄の酸化物からなる天然スピネルです。フェロクロム製造の副産物であり、主に鋳造用途とガラス製造に使用されます。
典型的な化学分析 [%] :
| Cr2O3 | SiO2 | FeO | 高い | マグネシウム | Al2O3 | ポ | S | クロム/鉄 |
| ≥46.0 | ≤1.0% | 26.2 | 0.3 | 9.8 | 15.5 | 0.003 | 0.003 | 1.6 : 1 |
物理的特性
| 法 | 水 | ほこり | 融点 | PH値 |
| ≤0.5% | ≤0.2% | ＜0.5% | 2150℃ | 7-9 |
主な用途:
鋳造産業におけるクロム砂
その特性により、この材料は高負荷のねずみ鋳鉄および鋼の鋳造所でコアや鋳型として使用することができます。
砂を作るのに使用されます。熱伝導率が高いため冷却特性に優れ、熱膨張率が低いため寸法安定性に優れています。塩基度が中性に近いため、幅広い樹脂に使用できます。
結合システムと無機バインダーを併用することで、耐火性が高く、ふるい分布が広くなります。
鉄鋼業界におけるクロム砂
鉄鋼生産では、クロマイト砂は大型の鉄鋼保持取鍋のスライドゲートを保護するための充填剤としても使用されます。
ガラス産業におけるクロム砂
クロマイト砂は細かい粉に挽かれ、緑色のガラス製飲料容器の製造に使用されます。
生産可能なサイズ
AFS15-25 AFS25-30 AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS45-55 AFS50-55 AFS55-60 AFS60-70 200メッシュ 325メッシュ 400メッシュ
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