Description
Refractory castable specially designed for various components of aluminum melting furnaces in the aluminum alloy industry. The material has following features:
- Superior resistance to molten aluminum erosion
- Excellent penetration prevention
- Non-stick properties against molten aluminum
- Outstanding erosion resistance
Material Composition
- High-grade silicon carbide (SiC)
- Fused alumina
- Selected bauxite
Precisely blended with high-performance additives through scientific formulation to ensure optimal quality.
Quality Benchmark
This product demonstrates comparable performance to similar Japanese products and has received excellent feedback within China’s aluminum alloy industry.
Parameter
| Item | JK-1 | JK-2 | JK-3 | |
|---|---|---|---|---|
| Al2O3 | % | ≥60 | ≥65 | ≥70 |
| CaO | % | ≤2.0 | ≤2.0 | ≤1.5 |
| Refractoriness | ℃ | 1770 | 1790 | 1790 |
| Working temperature | ℃ | 1400 | 1450 | 1400 |
| Bulk density | g/cm3 | 2.3 | 2.4 | 2.5 |
| Modulus of rupture, MPa | 110℃×24h | 5 | 6 | 8 |
| 1350℃×3h | 8 | 10 | 12 | |
| Crushing strength, MPa | 110℃×24h | 40 | 50 | 60 |
| 1350℃×3h | 50 | 60 | 80 | |
| Permanent linear change, % | 1350℃×3h | ±0.5 | ±0.3 | ±0.2 |
