High Temperature Refractory Corundum Mullite Brick

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Tianjin
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TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
1000 m.t./month

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Packaging & Delivery

Packaging Details:wooden box packing, standard export packing
Delivery Detail:10-30 working days

High temperature refractory corundum mullite brick

Zhengzhou Lepe Refractory Material Co., Ltd is a professional manufacturer in the supplying different kinds of refractory materials,

including corundum mullite brick, bubble brick,mullite-sillimanite brick, chrome brick, zirconia brick, silicon carbide brick, high temperature 

kiln furniture series.If you need, you are welcome to contact us for detail information.Skype: leperm03, Trademanager: cn150854918

 

Parameter for corundum mullite brick

Item

High quality and   high purity corundum brick

Sinter corundum   brick

Mullite-corundum   brick

Al2O3%

  ≥99

  ≥90

  ≥80

SiO2%

  ≤0.2

  ≤8

  ≤18

Fe2O3%

  ≤0.2

  ≤0.2

  ≤0.3

Bulk density   g/cm3

  ≥3.2

  ≥3

  ≥2.8

Apparent   porosity %

  ≤19

  ≤18

  ≤18

Cold crushing   strength MPa

  ≥100

  ≥100

  ≥100

Refractoriness   under load(0.2MPa,0.6%)

  ≥1700

  ≥1700

  ≥1700

Application

Primarily used   for the key parts of the industrial furnace of steel, electronics,   petrochemical,fertilizers,non-ferrous metals,refractory materials,etc.



High Temperature Refractory Corundum Mullite Brick

High Temperature Refractory Corundum Mullite Brick

High Temperature Refractory Corundum Mullite Brick

High Temperature Refractory Corundum Mullite Brick


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Q:What are the varieties of polycrystalline mullite?
PMF (polycrystalline mullite fiber) is an international super light resistant high temperature heat insulation material of the latest, it consists of mullite micro crystal which integrates crystal and fiber materials properties in one, has an excellent thermal stability, temperature 1500, melting point 1840, the thermal conductivity of refractory brick is a traditional 1/6, bulk only the 1/25 is the ideal material for high temperature furnace energy saving.
Q:Jm26 mullite aluminum content in the number, ask God to answer. 23 more. How is this identified with the naked eye?
Under strong alkaline conditions, aluminum is separated from other metal ions by the amphoteric nature of aluminum.
Q:Mullite brick
High alumina refractory with crystalline mullite (3Al2O3, 2SiO2) as the main crystal phase. General alumina content in 65% ~ 75% between. In addition to mullite, the mineral composition contains lower amounts of glass phase and square quartz, and alumina containing a small amount of corundum.
Q:Aluminum content 38, silicon content 55 What refractory bricks?
The mineral composition of the high alumina brick is determined by the bauxite used. The mineral composition of the clinker is usually mullite, corundum and glass. The theoretical composition of mullite is Al2O371.8%, SiO2 28.2%, and its melting decomposition temperature is 1840 DEG C. With acicular crystal, network cross structure, high temperature state showed better strength. Corundum in the form of alpha -Al2O3, melting point of 2050 degrees, hardness of Mohs 9, showing a granular and columnar crystal, has good chemical stability, acid, alkaline slag have a certain resistance. Based on the composition of mullite minerals, the phase composition of high alumina brick can be judged according to the content of Al2O3.
Q:The difference between the high aluminum corundum brick and corundum mullite brick
Wall tiles and floor tiles are collectively referred to as ceramic tile flooring
Q:The introduction of mullite brick
High alumina refractory with crystalline mullite (3Al2O3, 2SiO2) as the main crystal phase.
Q:Mullite bricks on alumina alumina is what?
Mullite (3Al2O3 - 2SiO2) high alumina refractory materials as the main crystal phase. The general alumina content in 65% ~ 75%. In addition to mineral composition of mullite, alumina containing low also contain a small amount of glass phase and cristobalite; alumina containing high also contain a small amount of corundum.
Q:What are the properties of corundum mullite
Heavy material has good compactness, high compressive strength, resistance to various corrosive gases, good thermal shock resistance, good thermal conductivity and wear resistance.
Q:Refractory bricks (mullite bricks) can be used on the walls of buildings?
In many architectural design, high-rise fire rating is placed in the important position of the topic, especially when the floor height is more than 20 layers, we have more stringent requirements for the choice of fire resistant materials. The building wall, kitchen flue, boiler flue, flammable zone must use a firewall barrier, in many refractory refractory brick is the product of choice for fire resistance of refractory brick masonry is more stable.
Q:What is the difference between mullite ceramics and alumina ceramics? Can you tell me something to do with floor tiles?
Corrosion resistance: mullite acid is not alkali resistant. Alpha alumina ceramic acid, alkali resistance - for floor tiles, alumina corrosion resistance is too high, unnecessary.Sintering temperature: the sintering temperature of mullite is low. So the cost is low because of this, so alumina ceramic is basically not used for floor tiles - unless it's too rich to burn.Heat shock resistance: the thermal shock resistance of mullite is higher than that of alumina.High temperature creep properties: the high temperature creep of mullite is higher than that of alumina, so mullite can bear higher weight at high temperature, and alumina is less.Resistance: alumina ceramic resistor is higher than mullite, so it is used as high-voltage insulators.

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