The characteristics of vacuum heat treatment furnace

(1) water cooling device, vacuum heat treatment furnace furnace shell, furnace lid, electric components to guide disposal (water-cooled electrode), the middle of the vacuum insulation doors and other components, are in a vacuum, heated state work. In this very unfavorable conditions to work, we must ensure that the structure of the components are not deformed, no damage, vacuum seals, but not hot, do not burn. Therefore, the components should be based on different circumstances set up water cooling device to ensure that the vacuum heat treatment furnace to normal operation and have sufficient service life.[url=]promotional sapphire furnace molybdenum heat shield[/url]
(2) the use of low-voltage high current: in a vacuum container, when the vacuum is a tentor-lxlo-1 care within the range, the vacuum container within the conduction conductor at a higher voltage, will produce glow discharge phenomenon. In the vacuum heat treatment furnace, serious will produce arc discharge, burning electric components, insulation layer, resulting in major accidents and losses. Therefore, the vacuum heat treatment furnace electric components of the working voltage, generally not more than 80 to 100 volts. At the same time in the design of electric components to take effective measures, such as try to avoid cutting-edge components, the spacing between the electrodes can not be too narrow to prevent glow discharge or arc discharge occurs.
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(3) most of the heating and insulation materials can only be used in a vacuum state: vacuum heat treatment furnace heating and insulation lining is working in vacuum and high temperature, and thus put forward these materials, high temperature, low vapor pressure, radiation Good effect, small thermal conductivity requirements. The antioxidant performance requirements are not high. Therefore, the vacuum heat treatment furnace widely used tantalum, tungsten, molybdenum and graphite for heating and insulation materials. These materials are easily oxidized in the atmosphere, so the conventional heat treatment furnace can not use these heating and insulation materials.
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