WHAT SHOULD BE PAID ATTENTION TO WHEN HEATING SILICON CARBIDE HEATING ELEMENTS?
What should be paid attention to when heating silicon carbide heating elements? Silicon carbide is a non-metallic electric heating element, its resistivity changes with temperature, and the resistivity change is nonlinear. The resistivity of carbon rods produced by traditional Chinese technology has an inflection point of 800 degrees with temperature changes. The resistivity of carbon rods is very high at room temperature, and decreases rapidly as the temperature increases, reaching a low temperature at 800 degrees Celsius. Then, as the temperature continues to rise, the resistivity slowly increases, and as the temperature rises, the resistivity increases significantly.
The resistance characteristic of silicon carbide rod is that the resistivity is very high at room temperature, and it decreases rapidly with the increase of temperature. It is lower at 1350℃, and slowly increases with the continuous increase of temperature. The resistivity increases more with the increase of temperature . If the newly used carbon rods cannot adapt to the operating temperature well, the temperature will rise sharply, which can easily damage the surface of the carbon rods and shorten their service life. Therefore, we should use it carefully and find a suitable way to use it. Silicon carbide rods are very common in industrial production. As a recognized heating element in the industry, the use of carbon rods is very effective.
At the same time, with the advancement of production technology, the quality of carbon rods has also improved. From the initial use temperature of 800 degrees Celsius to the current temperature of 1350 degrees Celsius, this is a big improvement, and it has also witnessed 010-. But at the same time, some silicon carbide rods can reach the normal service life when used at the same temperature, but some carbon rods are quickly scrapped. What caused this phenomenon? let us see.
It was found that different operation steps are important factors that cause the different service life of silicon carbide rods. When using carbon rods, many people are accustomed to heating directly to normal working temperature. However, in many cases, both the initial use of carbon rods and the long-term use of carbon rods require a process, a process of adapting the carbon rods to temperature. Without this process, it is easy to drastically shorten the service life of the carbon rod.
The resistance characteristic of silicon carbide rod is that the resistivity is very high at room temperature, and it decreases rapidly with the increase of temperature. It is lower at 1350℃, and slowly increases with the continuous increase of temperature. The resistivity increases more with the increase of temperature . If the newly used carbon rods cannot adapt to the operating temperature well, the temperature will rise sharply, which can easily damage the surface of the carbon rods and shorten their service life. Therefore, we should use it carefully and find a suitable way to use it. Silicon carbide rods are very common in industrial production. As a recognized heating element in the industry, the use of carbon rods is very effective.
At the same time, with the advancement of production technology, the quality of carbon rods has also improved. From the initial use temperature of 800 degrees Celsius to the current temperature of 1350 degrees Celsius, this is a big improvement, and it has also witnessed 010-. But at the same time, some silicon carbide rods can reach the normal service life when used at the same temperature, but some carbon rods are quickly scrapped. What caused this phenomenon? let us see.
It was found that different operation steps are important factors that cause the different service life of silicon carbide rods. When using carbon rods, many people are accustomed to heating directly to normal working temperature. However, in many cases, both the initial use of carbon rods and the long-term use of carbon rods require a process, a process of adapting the carbon rods to temperature. Without this process, it is easy to drastically shorten the service life of the carbon rod.