$Mullite Brick - High Temperature Refractory Corundum$

$Mullite Brick - High Temperature Refractory Corundum System 1$

$Mullite Brick - High Temperature Refractory Corundum System 2$

$Mullite Brick - High Temperature Refractory Corundum System 3$

$Mullite Brick - High Temperature Refractory Corundum System 4$

$Mullite Brick - High Temperature Refractory Corundum System 5$

$Mullite Brick - High Temperature Refractory Corundum System 6$

Mullite Brick - High Temperature Refractory Corundum

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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.

$High Temperature Refractory Corundum Mullite Brick$

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: (refractory castable, silicon carbide brick, mullite bricks etc.) do testing should be commissioned by the project? What are the specific qualification standards? Thank you: Different refractory materials have different requirements, specific industry or national standards, such as LZ can check the mullite bricks GB / standard, there should be a harvest, do testing project is in accordance with the requirements of the LZ need to determine the use requirements

Q: What is the difference between mullite ceramics and alumina ceramics? Can you tell me something to do with floor tiles?: Mullite is formed by the reaction of alumina with silica. The main difference between him and alumina is that:Hardness: alumina is harder than mullite, but two are tough enough, and are not easy to break.Corrosion resistance: mullite acid is not alkali resistant. Alpha alumina ceramic acid, alkali resistance - for floor tiles, alumina corrosion resistance is too high, unnecessary.

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: Mullite bricks in alumina alumina is what?: Quality solutionsMullite brick:With mullite as main crystalline phase of high alumina refractory products. Mullite bricks containing Al2O3 64%~75%, refractoriness >1790? C, normal temperature compressive strength 70~260MPa, softening the starting point for 1600~1700 degrees. The manufacturing method for casting and sintering process.

Q: The introduction of mullite brick: High alumina refractory with crystalline mullite (3Al2O3, 2SiO2) as the main crystal phase.

Q: Mullite brick: High refractoriness, up to 1790 degrees celsius. The softening start temperature is 1600~1700 degrees. The compressive strength at normal temperature is 70 ~ 260MPa. Good thermal shock resistance. The sintered mullite and fused mullite brick two. Sintered mullite brick with high bauxite clinker as the main raw material, adding a small amount of clay or raw bauxite as binder, after molding, sintering and made. Fused mullite brick with high bauxite, alumina and refractory clay as raw material, adding charcoal or coke fines as a reducing agent, formed by reduction of electric melting method to manufacture. The crystallization of fused mullite is larger than that of sintered mullite, and the thermal shock resistance is better than that of sintered products. Their high temperature performance mainly depends on the content of alumina and the uniformity of the phase distribution of mullite and glass. [1]

Q: The difference between the high aluminum corundum brick and corundum mullite brick: Tiles are called floor tiles, floor tiles, polished tiles and glazed tiles are glazed tiles, bricks are samples of all kinds of tiles, ceramic tiles will be placed in the tile shop, tiles are also divided into outer wall tiles and inner wall tiles, modern brick and antique brick

Q: What are the varieties of polycrystalline mullite?: PNF-100 seriesThe PNF-100 series are made of polycrystalline mullite fiber cotton felt to cut, compress, and wrap into blocks without any adhesive.Characteristic: thermal shock resistancelow thermal conductivityLight weightSound absorption propertyLow thermal storage

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.

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