Mullite castable
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Description:
Mullite castable
I. Main Product Types
- Standard type ( ML-70)
- Ingredients: Al₂O₃ 70–75%, SiO₂ 22–25%
- Aggregates: Porous mullite (particle size 0–12 mm)
- Operating temperature: ≤1600℃
- Composite reinforced ( MLS-80)
- Add 5–8% silicon carbide fine powder
- Increased high-temperature flexural strength 40%
- Thermal Shock Stability ≥25 cycles (water-cooled at 1100℃)
- Lightweight and energy‑efficient
- Closed porosity ≥30%
- Thermal conductivity 0.8 W/(m·K)
- Bulk density 1.6–1.8 g/cm³
2. Modern Production Processes
- Intelligent Ingredient Mixing System
- Adopt AI algorithm optimization of gradation (coarse:medium:fine = 45:30:25)
- Nano-silica sol binder (replacing 30% cement)
- Low-temperature activation technology
- Introduce andalusite fine powder (which transforms into mullite at high temperatures).
- The firing temperature has been reduced to 1350℃ (25% energy savings)
- 3D printing and forming
- Customizable complex prefabricated components
- Dimensional accuracy reaches ±0.5mm
3. Application Fields
| Application Industry |
Typical Sites |
Usage Effectiveness |
| Petrochemicals |
Catalytic Cracking Unit Linings |
Life expectancy extended to 5 years |
| Electricity |
Circulating Fluidized Bed Boiler |
Improved wear resistance 3 times |
| Metallurgy |
Lining of the ladle |
Weight loss 30% |
| New Energy |
Lithium Battery Sintering Kiln |
Reduced energy consumption 18% |
4. Performance Advantages
- Compared with traditional materials
- Thermal shock resistance: 20 times vs. 8 times for high-alumina bricks
- Construction Efficiency: Increased On-Site Pouring Speed 50%
- Maintenance Costs: Reduced Time Required for Local Repairs 70%
- Technological Breakthrough
- Self‑healing technology: High‑temperature self‑healing of microcracks
- Intelligent Monitoring: Real‑time Monitoring via Embedded Fiber Optic Sensors
V. Physicochemical Indicators ( GB/T 2026-ML)
1. Basic parameters:
- Bulk density: 2.3–2.5 g/cm³ (Standard Type)
- 110℃ Post-baking strength: ≥50 MPa
- High-Temperature Performance:
- 1600℃ Post-burn wire deformation: ±0.3%
- 1400℃ Thermal conductivity: 1.2 W/(m·K)
- Special Indicators:
- Alkali resistance: K₂O Erosion ≤1.0 mm/100 h
- Resist CO Erosion: Loss of Strength ≤15%
Keywords:
Mullite castable
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Address: Chengguan Industrial Zone, Xinmi City, Henan Province
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