Silicon carbon rod (SiC) electric heating element

Silicon carbon rod (SiC) electric heating element is a rod-shaped non-metallic high-temperature electric heating element that uses green high-purity hexagonal silicon carbide as the main raw material. It is processed into embryos, high-temperature siliconized, and recrystallized at 2200°C. It has high temperature resistance and oxidation resistance. , Corrosion resistance, fast heating, long life, small high temperature deformation, easy installation and maintenance.

It has a wide range of uses and can be used in high-temperature fields such as electronics, magnetic materials, powder metallurgy, ceramics, glass, semiconductors, analysis and testing, scientific research, etc. It is an ideal choice for tunnel kilns, roller kilns, glass kilns, vacuum furnaces, muffle furnaces, and smelting. Electric heating elements for furnaces and various heating equipment.

Silicon carbide rods have a large specific resistance. When heated in the air, the surface temperature of the heating part can reach 1450°C. They also have good chemical stability. Acid has no effect on it, but alkali and alkaline earth metal oxides can react under certain temperature conditions. It has corrosive effects on it under high temperature. Water vapor, hydrogen, halogen, sulfur, etc. also have oxidizing and corrosive effects on it at high temperatures.

The resistance value of silicon carbide rods increases, this phenomenon is called "aging". The aging of silicon carbide rods is caused by the reaction of silicon carbide inside with oxygen or water vapor to form silicon dioxide, which increases the resistance. The key to controlling the aging of silicon carbide rods is density. Simply put, high density means fewer pores and less oxidation reactions. Therefore, increasing the density of silicon carbide rods is an effective way to extend the service life of silicon carbide rods.