2019年5月16日星期四

Vertical Vacuum Furnace Working Principle

Vertical vacuum furnace is a protective furnace for heated objects in vacuum environment. There are many heating modes, such as resistance heating, induction heating, microwave heating and so on. Vacuum induction furnace is a kind of furnace which uses induction heating to protect heated objects. It can be divided into power frequency, intermediate frequency, high frequency and other types, and can be classified as a subcategory of vertical vacuum furnace.

Vacuum induction furnace is a complete set of equipment for the production of cemented carbide, dysprosium metal and ceramics by using the principle of medium frequency induction heating under vacuum or protective atmosphere.

The main principle and application of vacuum induction tungsten furnace is to make tungsten crucible in coil produce high temperature under the protection of hydrogen after vacuum pumping. It is conductive to work through heat radiation. It is suitable for powder forming of refractory alloys such as tungsten, molybdenum and their alloys by scientific research and military units. Secondly, the main structure and composition of the structure are mostly vertical and discharge mode. Its main components are: electric furnace body, vacuum system, water cooling system, pneumatic system, hydraulic system, feeding and discharging mechanism, base, worktable, induction heating device (tungsten heater and advanced thermal insulation material), power supply device, medium frequency power supply and electrical control system, etc. 3. The main function is to fill the hydrogen protective gas after vacuum evacuation to control the pressure and atmosphere in the furnace. Optical fibre infrared radiation thermometer and armored thermocouple can be used to continuously measure temperature (0-2500 C). After comparing with the setting program, the intelligent temperature controller can choose to implement state feedback to medium frequency power supply, automatically control the temperature and heat preservation program.

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