Physical knowledge of silicon carbide rod

- Mar 21, 2020-

Silicon carbide electric heating element silicon carbide is a kind of rod-shaped and tubular non-metallic high-temperature electric heating element, which is made of high-purity green hexagonal silicon carbide as the main raw material and processed into billets according to a certain material ratio and sintered by high-temperature silicification Recrystallization at 2200 ℃. The normal operating temperature in oxidizing atmosphere can reach 1450 ℃, and the continuous use can reach 2000 hours.


Because of its high temperature, it has the characteristics of high temperature resistance, oxidation resistance, corrosion resistance, fast temperature rise, long service life, small high temperature deformation, convenient installation and maintenance, and good chemical stability. Matching with the automatic electronic control system, we can get accurate constant temperature, and adjust the temperature automatically according to the curve according to the needs of the production process. It is convenient, safe and reliable to use silicon carbide rod for heating. It has been widely used in high temperature fields such as electronics, magnetic materials, powder metallurgy, ceramics, glass, ceramics, semiconductors, analysis and testing, scientific research, and has become an electric heating element of tunnel kiln, roller kiln, glass kiln, vacuum furnace, muffle furnace, smelting furnace and various heating equipment.


physical property:

Component texture: hard and brittle, resistant to cold and heat, not easy to deform under high temperature, other physical properties are as follows:

Density: 3.2g/cm; MOH hardness: 9.5; specific heat: 0.17 kcal / kg · degree; thermal conductivity: 20 kcal / m · h · degree; linear expansion coefficient: 5 × 10-6 (M / ℃)

According to the requirements of our customers, we can produce two types of SiC rod products: coarse end and equal diameter. According to the functional shape, we can divide them into straight rod, multi heating section straight rod, U-shaped rod, W-shaped rod, single and double thread rod, groove shaped rod, gun shaped rod, gate shaped rod, etc.