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Classification of controlled atmosphere heat treatment furnace

     Controlled atmosphere heat treatment furnace, depending on the assignment form can be divided into two categories, cycle type and continuous type, and in two categories according to different ways of furnace type structure and movement is divided into the following categories: periodic furnace: such as the sealed box furnace, multi-purpose furnace) and pit type furnace, etc.

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Applicable scope of controlled atmosphere heat treatment furnace:


    It can be used for heat treatment such as bright quenching, bright annealing, carburizing and carbonitriding. Continuous furnace, such as push rod furnace, rotary hearth furnace and continuous type controlled atmosphere carburizing production line, such as use of mass production, can be bright quenching, tempering, carburizing and carbonitriding heat treatment, etc.


    The basic structure of the controlled atmosphere heat treatment furnace is basically the same as that of the general heat treatment furnace, and its design and calculation methods are the same as that of the general heat treatment furnace. Because of the controllable atmosphere in the furnace, there should be some special requirements in the structure, which boil down to the following nine aspects: 1. 2. Keep positive pressure inside the furnace; 3. Uniform atmosphere in the furnace; 4. Use anti-carburizing bricks; 5. Suitable heating elements; 6. Set up ventilation and exhaust devices; 7. Set the front room, back room, quench tank and furnace body seal; 8. Mechanical inlet and outlet equipment; 9. Set up safety and explosion-proof devices;

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Overview of technology of controlled atmosphere heat treatment furnace:


    Vacuum heat treatment technology is a new heat treatment technology developed with the development of national defense advanced industry and precision machinery manufacturing industry. Especially in recent years, the improvement of the performance and precision of the parts makes the vacuum heat treatment technology more and more important. It is not only used for heat treatment of active and refractory metals, but also gradually extended to annealing, quenching, tempering, nitriding, and metallization of steel materials.


     Controlled atmosphere heat treatment furnace artifacts usually has a series of prominent advantages: no oxidation and decarburization, still maintain the surface brightness and original luster after processing, surface usually is not processing, no deformation, high abrasion resistance and service life of the workpiece have skimmed, degassing effect, pollution-free, pollution-free, high degree of automation.


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