Vacuum Oil Quenching Furnace

Vacuum quenching refers to the smooth quenching of parts. The quenching and cooling of parts are carried out in the vacuum furnace, and the quenching medium is mainly gas (such as inert gas), water and vacuum quenching oil. Vacuum quenching has been widely used in the quenching of various carburizing steels, alloy tool steels, high speed steels and stainless steels, as well as the solution treatment of various aging alloys and hard magnetic alloys.

There are two kinds of quenching in vacuum: gas quenching and liquid quenching. Gas quenching is that the workpiece is heated in vacuum and then cooled by high purity neutral gas (such as nitrogen) in the cooling chamber. High speed steel and high carbon and high chromium steel are suitable for gas quenching. Liquid quenching is to heat the workpiece in the heating chamber, move it to the cooling chamber, fill it with high purity nitrogen, and immediately send it to the quenching oil tank for rapid cooling. If high surface quality is needed, tempering and precipitation hardening after vacuum quenching and solution heat treatment should still be carried out in vacuum furnace.

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  • Technical Features

    Horizontal, double chamber structure, circular heating chamber structure;

    Feeding and discharging mechanism;

    It is a double lever structure and adopts frequency conversion speed regulation to control the feeding and discharging smoothly, rapidly and reliably;

    Oil mixing system: frequency control motor drive agitator, guide plate can promote the reasonable circulation flow of vacuum quenching oil, improve the cooling capacity of quenching oil.

    Temperature thermocouple feeding device with patented structure;

    It has patented double seal structure of temperature control thermocouple.


  • TypeWorking Zone size(mm)Capacity(kg)HeatingPower(KW)Max.Temp(ºC)Temp.uniformityMax.vacuum(Pa)Pressure risingrate(Pa/h)Air coolingpressure
    VGQK-2801200x1000x90025002801200≤±54x10-1≤0.656
    VGQK-4502000x1200x70040004501200≤±54x10-1≤0.656
    VGQV-150Ф600x800250150132054x10 -1 or 4x10-3≤0.656
    VGQMV-300Ф600x12001200300132054x10 -1 or 4x10-3≤0.656
    VGQMV-360Ф1000x10001000360132054x10 -1 or 4x10-3≤0.656
    VGQMV-420Ф1000x12001000420132054x10 -1 or 4x10-3≤0.656
    VGQV-200Ф1000x12001000200132054x10 -1 or 4x10-3≤0.656
    VGQV-450Ф1000x25001500450132054x10 -1 or 4x10-3≤0.656
    VGQMV-450Ф1600x20002500450132054x10 -1 or 4x10-3≤0.656
  • Application

    It is used for vacuum heat treatment, vacuum brazing and vacuum sintering of high speed steel, cold and hot working die steel, martensitic stainless steel, elastic alloy, superalloy, magnetic material and titanium alloy.

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