For the experimental electric furnace, different heating elements can affect its temperature, mainly including the following points:

The greater the electrical current used to heat the silicon carbide rod in the furnace, the higher the surface temperature of the silicon carbide rod. It is recommended to use the smallest possible surface load density (power). Please note that the values recorded at the cold end of the silicon carbide rod are for 1000°C air current and voltage, which may not correspond to actual usage.

Typically, the surface power of silicon-carbide rods is determined by the relationship between the furnace temperature and the surface temperature of the silicon-carbide rods. It is recommended to use a surface power (W/cm³) of 1/2 to 1/3 of the density of the silicon-carbide rods. As the operating temperature increases, the lifespan of the silicon-carbide rods decreases. Therefore, after the furnace temperature exceeds 1400°C, the oxidation rate accelerates, and the lifespan shortens. During use, it is advisable to avoid excessively high surface temperatures of the silicon-carbide rods.

Carbon-silicon rods, when heated in air, form a dense silicon oxide coating on their surface, which acts as a protective layer, extending their lifespan. In recent years, various coatings have been developed to prevent cracking of carbon-silicon rods, suitable for use in furnaces with a variety of gases.

Varying temperatures have different effects on the experimental furnace for heating elements, so it is crucial to ensure that the temperature does not fluctuate too much to maintain the quality of the manufacturing.

That concludes the entire content brought to you by Experimental Furnace Manufacturers. We hope it has been helpful. If you have any needs or other information you'd like to know, feel free to leave a message for us!