
Key Features
1. Exceptional Thermal Stability
- Withstands temperatures up to 1700°C without structural degradation.
- Low thermal conductivity (≤1.8 W/(m·K)) minimizes heat loss, enhancing energy efficiency.
2. Superior Corrosion Resistance
- High zirconia content (≥20%) provides excellent resistance to acidic/alkaline slag erosion, ideal for glass furnaces and chemical reactors.
3. Mechanical Strength
- Cold crushing strength (CCS) of ≥80 MPa at 1300°C ensures longevity in high-stress environments like kiln linings and ladles.
4. Thermal Shock Resistance
- Endures 30+ rapid cooling cycles (1100°C to water) without cracking, outperforming traditional refractory bricks.
5. Low Porosity
- Apparent porosity ≤18% reduces slag penetration, extending service life.
Technical Specifications
|
Property |
Value (CCM-80 Model) |
|
Al₂O₃ Content |
≥80% |
|
ZrO₂ Content |
≥20% |
|
Bulk Density |
2.85–3.2 g/cm³ |
|
CCS (1300°C×3h) |
80 MPa |
|
Thermal Conductivity |
1.8 W/(m·K) |
|
Maximum Service Temperature |
1700°C |
The Cast Zirconia-Mullite Block is widely used in:
- Glass Industry: Forehearths, feeder channels, and melting zones where resistance to molten glass corrosion is critical.
- Steel Plants: Ladle linings and tundish impact pads for molten metal containment.
- Petrochemical: Reformers and FCC units exposed to corrosive gases.
- Ceramics & Cement: Kiln transition zones requiring thermal shock resistance.

Why Choose Shandong Luming's Cast Zirconia-Mullite Block?
Innovative Formulation
- Proprietary blend of fused zirconia-mullite aggregates and nano-bonding systems.
- 25+ patents in refractory technology, including energy-saving kiln lining designs.
01
Rigorous Quality Control
- Raw materials tested for purity (Al₂O₃ ≥80%, ZrO₂ ≥20%).
- Triple-stage mixing and computerized batching (±0.5% accuracy).
02
Custom Solutions
- Tailored dimensions and compositions to meet specific operational needs.
03
Global Logistics
- FOB Qingdao Port with moisture-proof packaging (1-ton super sacks or 25kg bags).
04
FAQ
Conclusion
Shandong Luming's Cast Zirconia-Mullite Block redefines refractory performance with its unparalleled combination of strength, thermal stability, and corrosion resistance. Backed by decades of R&D and stringent quality assurance, this product is the optimal choice for industries seeking to enhance operational efficiency and reduce downtime.
For pricing, samples, or technical consultations, contact Shandong Luming New Materials Co., Ltd. today and experience the future of refractory solutions.
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