Product Features
Excellent High-Temperature Performance
Refractoriness: ≥1790℃; Refractoriness under load (0.2MPa): ≥1650℃
High-temperature strength: Flexural strength at 1200℃ ≥80MPa; Cold crushing strength ≥150MPa
Low creep: Minimal deformation at high temperatures and stable dimensions during long-term service
Excellent Thermal Shock Resistance
Low thermal expansion coefficient, suitable for kilns with frequent start-stop operation
Compact Structure & Strong Erosion Resistance
Low porosity, strong resistance to molten glass, molten slag, acid and alkali corrosion
Fully developed crystals with few defects, superior to sintered mullite
Good Chemical Stability
Resistant to acid and weak alkali corrosion; not easily corroded in complex atmospheres such as cement, glass and metallurgy
Other Advantages
High hardness and good wear resistance
Excellent electrical insulation
Application Fields
1.Iron & Steel Metallurgy
- ● Blast furnace / Hot blast stove: Checker bricks, furnace walls, low-creep linings with thermal shock resistance and scour resistance
- ● Ladle / Tundish: Lining bricks for non-slag line parts, permeable bricks and castables to extend service life
- ● Heating furnace / Soaking pit: Roofs, partition walls and slide rails adaptable to high-temperature fluctuating conditions
2.Glass Industry
● Key melting furnace parts: Tank wall blocks, breast wall blocks, throat blocks and regenerator checker bricks with low permeability and resistance to molten glass corrosion, reducing glass "stone" defects
● Float / photovoltaic glass kilns: High-purity fused mullite bricks with low iron and low impurities to ensure glass quality
3.Cement & Building Materials
● Rotary kiln: Linings for transition zone, calcination zone and kiln inlet with alkali erosion resistance, doubling service life
● Tertiary air duct, grate cooler: Castables / precast parts for high-temperature zones with wear resistance and thermal shock resistance
4.Ceramics & Industrial Kilns
● Kiln furniture: Shelf plates, pillars, push plates and roller rods with high flexural strength at high temperatures and no deformation to ensure continuous firing
● Tunnel kiln / Shuttle kiln: Lining bricks and insulation layers with high temperature resistance
5.Petrochemical & New Energy
● Cracking furnace / Gasifier: High-temperature linings and pipe linings with high-temperature creep resistance and chemical corrosion resistance
● Electronic ceramics / New energy: High-purity fused mullite used for IGBT insulating gaskets and sintering saggers for lithium battery cathode materials, featuring high-temperature insulation and low impurities
6.Other Fields
● Precision casting: Mold shell materials with high temperature resistance and dimensional stability
● Wear-resistant parts: Wear-resistant liners and nozzles with high hardness and wear resistance
Product Parameters
|
Item |
Index |
|
|
DM-1 |
DM-2 |
|
|
Al2O3(%) |
70-77 |
67-74 |
|
SiO2(%) |
22-29 |
21-28 |
|
TiO2(%) |
≤0.1 |
≤2.0 |
|
Fe2O3(%) |
≤0.2 |
≤0.6 |
|
Na2O+K2O(%) |
≤0.4 |
≤0.5 |
|
Bulk Density (g/cm³) |
≥2.90 |
≥2.90 |
|
Apparent Porosity (%) |
≤5 |
≤4 |
Packaging Specifications
Customized packaging can be provided according to customer requirements.
Company Advantages
Our company strictly adheres to national and industry standards, and can also implement enterprise internal control standards according to customer requirements, with key indicators monitored throughout the entire process. The product has good particle shape, high bulk density, and dense texture. We implement batch control from raw materials, production to finished products, with each batch sampled and tested to ensure the stability and consistency of components, particle size, purity, etc. It is a high-quality raw material for producing various high-grade refractory materials. In addition, our company has tunnel kilns and rotary kilns, which can calcine various types of calcined alumina according to customer needs, widely used in industries such as refractory materials, alumina ceramics, precision grinding and polishing, and semiconductor thermal conduction packaging.
FAQ
Q: What is the nature of your company?
A: We are an established manufacturing entity with 22 years of deep industry expertise. As a true producer, we offer not just products, but packaging solutions backed by extensive experience. With our own production lines and QC teams, we maintain full control over every order detail, making us a stable and long-term partner for your business.
Q: How do you ensure stable product quality in mass production?
A: Batch control is implemented from raw materials, production to finished products, and samples are retained and tested for each batch to ensure consistency in composition, particle size, purity and other indicators.
Q: Does Fused Mullite have good thermal shock resistance? Is it suitable for environments with large temperature fluctuations?
A: Yes, excellent. Fused Mullite features a very low coefficient of thermal expansion and outstanding thermal shock resistance. Our products resist cracking or spalling even under rapid heating and cooling, making them ideal for glass tank crowns and high-temperature kiln furniture.
Q: How to obtain samples?
A: We provide free samples for testing.
Q: What is the Al₂O₃ content of your Fused Mullite? How do you control impurities?
A: We offer various grades with adjustable Al₂O₃ content typically ranging from 60% to 77%.
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