NON-WETTING CASTABLES 不沾铝浇注料
Non-Wetting Castable 不沾铝浇注料
Specialized Refractory Solutions for Advanced Aluminum Processing 铝加工先进工艺专用耐材解决方案
Specialized Refractory Solutions for Advanced Aluminum Processing 铝加工先进工艺专用耐材解决方案
- Characteristics: Contains non-wetting agents that prevent molten metal from adhering to or penetrating the material.
- Pros:
- Superior Anti-Penetration: Prevents molten aluminum or slag from infiltrating the lining, greatly extending service life.
- Easy Maintenance: Reduces slag buildup on furnace walls, making cleaning much easier without damaging the lining.
- Metal Purity Protection: Prevents impurities from the refractory from leaching into the molten metal.
- Cons:
- Expensive: High cost due to specialized anti-penetration additives.
- Temperature Limitations: Non-wetting agents may lose effectiveness at extremely high temperatures (typically above 1200°C-1350°C).
- Storage Sensitivity: Additives may react with moisture in the air, resulting in a shorter shelf life.
Summary Comparison Table
| Property | Conventional Castable (CC) | Low Cement Castable (LCC) | Non-Wetting Castable |
| Cement Content | High | Low | Very Low |
| Density | Moderate | Very High | Dense & Hydrophobic |
| Erosion Resistance | Low | High | Very High (for molten metals) |
| Main Application | Boilers, furnace doors | Steel & Cement kilns | Aluminum melting/holding furnaces |
| Main Challenge | Limited temp performance | Risk of bursting during dry-out | High cost; additive stability |