High Temperature Refractory Corundum Mullite Brick

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Loading Port:
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 is the price of refractory bricks?
The construction is superior, the light insulating brick has good machinability, and the construction is convenient and simple, and the labor intensity can be reduced, the construction efficiency can be improved, and the construction period can be shortened. The price is determined by the choice of material and volume density, from several hundred to 5000 yuan, mainly with the choice of material
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.
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: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: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?
Refractory bricks used in the firewall, the first choice of national standard model, its size is 230mmx114mmx65mm, model T-3, component 3.5-3.7kg, and sometimes will use refractory bricks, seven separately to make up for the effect. Refractory brick in masonry usually fireclay, refractory soil adhesion is very strong, and has a certain degree of refractory refractory, so was widely used in refractory masonry, in building fire protection requirements if the fire rating is high, to the selection of refractory masonry cement, refractory cement refractoriness of fireclay than about 500 DEG C high.
Q:What are the varieties of polycrystalline mullite?
Performance comparisonWe used chemical method to produce a microcrystalline structure, excellent thermal stability, temperature exceeds the 300~400. C.The small fiber diameter uniform, slag ball trace, bulk density for 1/2~1/3 products.The large amount of fiber products, high porosity, low coefficient of heat conductivity.It has large surface area, is the ideal material for high temperature catalytic carrier.
Q:(refractory castable, silicon carbide brick, mullite bricks etc.) do testing should be commissioned by the project? What are the specific qualification standards? Thank you
Compressive strength, volume density, flexural strength, thermal shock resistance, high temperature load, creep temperature, refractoriness, etc.. There should be GB
Q:Mullite brick
Mainly used for hot blast stove of blast furnace and furnace bottom and furnace, glass furnace regenerator, sintering kiln, petroleum cracking dead lining system.
Q:The introduction of mullite brick
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.

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