In the vacuum furnace temperature distribution

In the vacuum furnace temperature distribution

Graphite rod arrangement method on either side of the heating element is decorated in the heating chamber, especially suitable for high vacuum furnace. In a high vacuum atmosphere, thermal radiation produced by on both sides of the heating element area artifacts can be uniformly heated. When the temperature at 400-1300 ℃, heating area each point temperature difference of + / - 5 K. In the '60 s, before the temperature control has been one of the main problems in the heat treatment technology. Because later adopted the technology of electronic temperature control, this problem has been resolved. At present, from the point of view of the temperature distribution, the precision of the hotspot temperature distribution is an important problem.
We almost always preferred to obtain uniform temperature on the structure can guarantee the hotspots, as for temporarily due to some reason make the hotspot temperature uneven phenomenon will disappear with the extension of heat preservation time. On the other hand, the temperature is higher or lower hotspot makes it consistently throughout the harmful effects of heat treatment. Below we present in this fruitful, the temperature gradient is lower than 0.01 K/cm vacuum furnace structure. In addition to the vacuum furnace temperature uniformity, there are some other advantages. Consume less power, completely avoid the use of toxic materials, heating, smoke pollution to the environment to produce outgassing, perfectly solve the problem of the material surface oxidation or distortion. Because of these advantages have now made vacuum furnace heat treatment process of necessary conditions. Heat transfer in a vacuum From the point of heat transfer, vacuum play a dual role.