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  • Products

  • Gear hardening machine

    Large diameter steel pipe quen

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    Grinding rod quenching and tem

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    induction heating machine 

    Induction heater

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    Super audio induction heating

    Super audio induction heating

    Guideway quenching integrated

    Quenching equipment for machin

    Round steel end heating furnac

    Steel pipe heat treatment prod

    Square steel quenching and tem

    Sucker rod quenching and tempe

    Thickened petroleum steel pipe

    Round steel quenching and temp

    Steel pipe quenching and tempe

    Steel plate quenching and temp

    Induction Hardening Machine&nb

    Flywheel ring gear high freque

    Oil drill pipe quenching and t

    Iron induction furnace

    Aluminum melting furnace

    Copper melting furnace

    Small steel melting furnace

    Electric furnace technical information（技术）
    Medium frequency furnace lining maximum working temperature table
        

    Medium frequency furnace lining maximum working temperature table

    Furnace lining material

    Mineral composition ( % )

    Melting point (°C)

    Maximum working temperature (°C)

    Remarks

    CaO

    CaO ≥ 96

    2570

    1850

    Alkaline

    MgO

    MgO ≥ 98

    2300

    1800

    Alkaline

    Sintered MgO

    MgO ≥ 96

    2000

    1750

    Alkaline

    MgO and Al 2 O 3

    MgO 28.3

    Al 2 O 3 71.7

    2135

    1750

    neutral

    SiO 2 and Al 2 O 3

    Al 2 O 3 71.8

    SiO 2 28.2

    1870

    1600

    neutral

    ZrO2 · SiO 2

    ZrO2 · SiO 2 ≥ 95

    2693

    1650

    neutral

    SiO 2

    SiO 2 ≥ 96

    1700

    1550

    Acidic

     

     

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