Characteristics of vacuum furnace graphite products

Vacuum furnace (vacuumfurnace): that is, a vacuum system (carefully assembled from vacuum pumps, vacuum measuring devices, vacuum valves and other components) is used in a specific space of the furnace cavity to discharge part of the material in the furnace cavity, so that the pressure in the furnace cavity is less than A standard atmospheric pressure, the space in the furnace cavity achieves a vacuum state, which is a vacuum furnace.

Vacuum furnace is an industrial furnace heated by electric heating elements in a near-vacuum state. Equipment for heating in a vacuum environment. The furnace is sealed with a metal casing or quartz glass casing and is connected to the high vacuum pump system by pipelines. The furnace vacuum can reach 133×(10-2～10-4)Pa. The heating system in the furnace can be directly heated by resistance furnace wire (such as tungsten wire), or high-frequency induction heating can be used. The maximum temperature can reach about 3000℃. Mainly used for ceramic firing, vacuum smelting, degassing and annealing of electric vacuum parts, brazing of metal parts, and ceramic-metal sealing.Vacuum furnace graphite products are increasingly widely used in vacuum furnaces. They are not only used to manufacture heating elements and heat shields of vacuum furnaces, but are also used to manufacture stress-bearing components such as brackets, trays, guide rails, bolts, bearings, fan blades, etc. Structural parts. The application of graphite in vacuum furnaces greatly simplifies the design and manufacturing of vacuum furnaces, reduces the consumption of metals such as tungsten, molybdenum, tantalum, stainless steel and other metals, reduces costs, improves certain properties of vacuum furnaces and expands the scope of vacuum furnaces. Scope of use.

Graphite has good vacuum performance, thermal conductivity, small thermal expansion coefficient, increased strength as the temperature increases, good processing technology, etc., coupled with low cost, it is a high-quality and low-cost material.

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