Zircon-based ramming mass
Category:
Description:
Refractory ramming mass
I. Main Product Types
- Silicon carbide Quality Ramming material
- Ingredients: SiC 45–65%, calcined anthracite 15–25%
- Features: Strong resistance to aluminum melt erosion, high thermal conductivity. 15–20 W/(m·K)
- Applicable to: Lining of Aluminum Electrolysis Cells
- Magnesia-alumina-chrome ramming mass
- Ratio: MgO 60–70%, Al₂O₃ 10–15%, Cr₂O₃ 5–8%
- Advantages: Excellent slag resistance and softening temperature. ≥1700℃
- Applications: RH Furnace Immerse Tube Repair
- Zircon‑based ramming mass
- Recipe: ZrSiO₄ ≥ 60%, α-Al₂O₃ fine powder 20–30%
- Features: Resistant to glass corrosion, low linear expansion rate. ≤0.5% (1600℃)
2. Production Process
- Dry mixing process ( 2025 New Technologies)
- Using a three-dimensional motion mixer ( CV ≤ 3%)
- Composite binder (resin) +Phosphate) Automatic Atomization System
- On-site Construction Techniques
- Robot pounding (pressure) 0.6–1.2 MPa)
- Infrared Online Compaction Detection (Accuracy: ±2%)
- Baking and curing
- Microwave‑Assisted Curing (Shorter Time) 70%)
- Temperature gradient control ( Heating rate of 5℃/min)
3. Application Scenarios
| Industry |
Typical Applications |
Improved Efficiency |
| Nonferrous Metallurgy |
Bottom of a Copper Flash Smelting Furnace |
Life expectancy extended to 18 months |
| Waste incineration |
Hot Repair in the Molten Zone |
Maintenance costs reduced 60% |
| Photovoltaic |
Polycrystalline silicon ingot furnace |
Reduced energy consumption 15% |
| Aerospace |
Rocket Engine Test Stand |
Temperature resistance up to 2200℃ |
IV. Performance Breakthrough
- Comparison with Traditional Castables
- Anti-permeability: Improved 3–5 times (aluminum melt penetration depth ≤ 10 mm)
- Construction Efficiency: Improvement 80% (no formwork or curing required)
- Economic Indicators
- Material utilization rate: ≥95% (only 85% for castables)
- Overall cost: Low 30–40%
V. Physicochemical Indicators
1. Physical Properties:
- Bulk density: 2.4–3.2 g/cm³ (According to material)
- Withstand Voltage Strength: ≥40MPa ( 110℃ After drying)
- High-Temperature Properties:
- Flexural strength ( 1400℃ ): ≥8MPa
- Thermal shock stability 1100℃ Water-cooled): ≥15 Next
- Construction parameters:
- Construction window: 4-6h ( 25°C Environment)
- Initial setting time: 2-3h (Resin-bonded type)
Keywords:
Zircon-based ramming mass
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