It is made of high bauxite, industrial alumina and refractory clay, with charcoal or coke fine particles as reducing agent, and is made by reduction fusion after molding. Its Al2O3 content is about 72-74%, the apparent porosity is about 17%, the volume density is 2.58g/cm3, the compressive strength at room temperature is about 39.2Mpa, and the softening temperature under load of 0.2Mpa is 1620-1660℃. Compared with sintered mullite bricks, it has better thermal shock resistance, low thermal expansion coefficient, and strong resistance to glass liquid corrosion.
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In AdvanceProduct Origin :
ChinaShipping Port :
Shanghai PortLead Time :
15 Working daysAl2O3 | max (%) | 70-75 |
---|---|---|
SiO2 | min (%) | 19-21 |
Fe2O3 | max (%) | 0.9-1.9 |
Na2O | max (%) | 1.0-1.2 |
Bulk density | g/cm3 | 2.9 |
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Apparent porosity | (%) | 4–5 |
Compression strength | MPa | 250-500 |
Refractoriness under load | (°C) | 1700 |
Application of Fused Mullite Brick
Kilns and Furnaces: Fused Mullite Brick is widely used in kilns and furnaces for industries such as ceramics, glass, iron and steel, and petrochemicals. It can be used as a lining material for various types of kilns and furnaces, including rotary kilns, glass melting furnaces, and high-temperature reactors.
Refractory Lining: Fused Mullite Brick is suitable for lining applications that require high-temperature resistance and thermal insulation. It can be used as a lining material for the walls, roofs, and floors of industrial furnaces, boilers, and thermal processing equipment.
Reformers and Gasifiers: Fused Mullite Brick is often used in high-temperature reactors, such as reformers and gasifiers used in the production of hydrogen and synthesis gases. Its high thermal stability and resistance to chemical attack make it suitable for these demanding applications.
Foundries: Fused Mullite Brick is utilized in foundry applications where it is exposed to high temperatures, molten metals, and thermal cycling. It can be used in crucibles, pouring cups, and other refractory shapes for metal casting processes.
Insulating Materials: Fused Mullite Brick can be used as an insulating material in the construction of thermal insulation layers or backup linings. Its low thermal conductivity helps to reduce heat loss and improve energy efficiency.
Fused Mullite Brick is valued for its excellent thermal properties, mechanical strength, and chemical resistance. Its use in high-temperature applications contributes to the efficient and reliable operation of various industrial.