The vacuum furnace heating element functions
The vacuum furnace can realize the vacuum state in the stove system, and some elements are removed to realize the vacuum. Vacuum furnace in metallurgy and ceramics firing has the very good effect, in the environment of vacuum firing ceramics will be more pure, color also will be better, and there's no any impurities, burn out the quality of ceramic products will be more a layer.
In metallurgy, we all know that it needs to be smelted in a high temperature environment. And some metal smelting requirement is high, if a little impurities in the air, so at the time of smelting, will react and metal, thus greatly affect the progress of smelting and refining the purity of the product. In a vacuum furnace, such a smelting environment can be realized, making the whole process of smelting easier.
What are the vacuum furnace heating elements：
Let's take a look at the vacuum furnace heating element, which is also very high. It is divided into several kinds, one is resistance furnace wire. Generally, the tungsten wire is used as the resistance furnace wire, because the tungsten wire has a high melting point and can withstand high temperature. When an electric current passes through the tungsten wire, the tungsten wire forms a resistance that heats up, even hot to redness.
So what's the use of a vacuum furnace heating element：
Actually tungsten heat can make the whole vacuum furnace is in a state of high temperature, the operator can adjust the current through the switch to adjust electric heating temperature of tungsten filament, so as to achieve control of the vacuum furnace temperature. One advantage of using tungsten wire as a vacuum furnace heating element is that the cost is low. But there is also a drawback, that is that the life of the tungsten filament is not very long, generally exceed a certain limit to be able to be blown out, unless maintain proper, can prolong the service life of tungsten wire.
The other is to use graphite carbon rods as heating elements in a vacuum furnace heating system, which is a bit more advanced than the tungsten filament. Using graphite carbon rod as the heating element, it has the advantages of long life, good heating effect and good environmental protection. It is also very convenient to maintain and maintain.