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High Temperature Resistance Alumina Ceramic Disc For Heating Use
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High Temperature Resistance Alumina Ceramic Disc For Heating Use

Alumina ceramic is made of aluminosilicate natural minerals as a main raw material, and is formed by a reaction sintering method in which a eucalyptus is synthesized in a sintering process or a mullite is first synthesized and then sintered.

Due to the low purity of raw materials and high impurity content, in addition to Al2O3 and SiO2, the components also contain impurities such as TiO2, Fe2O3, CaO, MgO, Na2O, K2O, etc., so that there are a considerable amount of glass phase in the product,resulting in mechanical and thermal properties. Poor, the excellent performance of mullite ceramics at high temperatures cannot befully utilized.

Therefore, ordinary mullite ceramics in the industry can only be used as a general refractory material in the case where the temperature and high temperature strength are not high.


    Product Feature


    High temperature resistance

    Strong thermal shock stability

    Resisting corrosion and stripping

    Long working life

    Effectively reduce probability of product's deformation, slag stripping etc defects

    Environment friendly


    Product Parameter


    Name

    Dense Cordierite

    Porous Cordierite

    Mullite

    Corundum mullite

    Density(g/cm3)

    2.1 ~2.5

    1.5 ~1.9

    2.0 ~2.5

    2.3 ~2.7

    Coefficient of heat expansion(×10-6K-1)(20~800°C)

    ≤3.5

    ≤3.0

    ≤5

    ≤6

    Specific Heat (J/Kg.K)(20~1000°C)

    900~1100

    900~1100

    1000~1150

    1100 ~1300

    Thermal Conductivity (W/m.k) (20~1000°C)

    1.5~2.5

    1.2~1.8

    1.5~2.0

    1.5~2.5

    Impact Thermal Resistance(°C/min)

    ≥300

    ≥350

    ≥350

    ≥300

    Max. Working Tem.(°C)

    1300

    1300

    1450

    1550

    Water absorption(%)

    ≤2

    15~25

    15~25

    15 ~25

    Compressive strength(MPa)

    ≥28

    ≥25

    ≥28

    ≥30

    Chemical composition (%)

    Al2O3

    25 ~38

    28 ~38

    60 ~70

    70 ~80

    SiO2

    50 ~60

    45 ~55

    25 ~35

    15 ~25

    MgO

    5 ~10

    11 ~14

    0 ~1

    0 ~2

    others

    <5

    <5

    <5

    <5


    Application Area



    Alumina Ceramic Disc

    Electric Appliance Industry

    Alumina Ceramic Disc

    Automotive Industry

    Alumina Ceramic Disc

    Mechanical Industry

    Alumina Ceramic Disc

    Metal Smelting


    Product Detail



    Alumina Ceramic Disc

    Our Factory



    Alumina Ceramic Disc
    Alumina Ceramic Disc
    Alumina Ceramic Disc
    Alumina Ceramic Disc

    FAQ


    • 1. How can you get quotation ?

    • 2. How can you get samples ?

      A: We can supply free samples if we have them in stock. If we haven’t produced the products, we can supply some free samples after getting mold fee. Please take note that the courier fee should be at destination.
    • 3. Are you trade company or manufacturer ?

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