Refractory Fused Mullite Powder
Particle Size： -325 mesh (<45μm): max 5% +200 mesh (>75μm): max 15% Other particle sizes available upon request.
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Description
high-purity alumina and high-purity silica in an electric arc furnace. The resulting material has a unique crystal structure that exhibits excellent thermal stability, chemical resistance, and mechanical strength, making it ideal for use in high-temperature applications.
The properties of refractory fused mullite powder make it a popular choice in the manufacture of refractory bricks, castables, and other high-temperature applications, such as furnace linings, kiln furniture, and crucibles. The material can withstand temperatures of up to 1800°C, making it ideal for use in the steel, glass, and ceramics industries.
Refractory fused mullite powder is available in a range of particle sizes and grades, depending on the intended application. It is typically produced as a fine powder that can be easily mixed with other materials to form a range of refractory products. The material is also available in larger particles, which can be used to create high-strength refractory castables and other specialized products.
Specification
Al2O3: 70-78%
SiO2: 22-30%
Fe2O3: max 0.1%
Na2O: max 0.3%
CaO: max 0.3%
MgO: max 0.3%
Bulk Density: 2.7-3.1 g/cm3
Apparent Porosity: max 20%
Crushing Strength: min 50 MPa
Thermal Conductivity: 2.5-3.5 W/m*K
Refractoriness: 1850-1900°C
Thermal Expansion Coefficient: 5.5-7.5x10^-6 /°C
Feature
High melting point: Refractory fused mullite powder has a very high melting point, typically around 1850°C. This makes it suitable for use in applications where high temperatures are involved.
High thermal shock resistance: Refractory fused mullite powder is able to withstand sudden changes in temperature without cracking or breaking. This makes it ideal for use in applications where rapid heating and cooling cycles are common.
High strength and hardness: Refractory fused mullite powder is a very hard and strong material, with excellent wear resistance. This makes it ideal for use in abrasive environments or applications where it is subjected to mechanical stress.
Chemical stability: Refractory fused mullite powder is highly resistant to chemical attack, even at high temperatures. This makes it useful for applications where it is exposed to harsh chemicals or corrosive environments.
Low thermal expansion: Refractory fused mullite powder has a very low coefficient of thermal expansion, meaning it does not expand or contract significantly with changes in temperature. This makes it useful for applications where dimensional stability is important.
Populære tags: refractory fused mullite powder
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