Silicon Carbide Heating Element With Protective Film

Silicon Carbide Heating Element With Protective Film

Coated ED Type Silicon Carbide Rod

Silicon carbide rods, also known as silicon carbide heating element is the use of high-quality green silicon carbide as the main raw material, the processing system also, high-temperature silicification, recrystallization of rod-shaped non-metallic high-temperature heating components. Compared with the metal heating element, silicon carbon rod has the characteristics of high temperature, anti-oxidation, corrosion resistance, long life, small deformation, easy installation and maintenance. Therefore, silicon carbon rods are widely used in magnetic materials, powder metallurgy, ceramics, glass, metallurgical and mechanical industries such as a variety of high-temperature electric furnace and other electric heating equipment. The ED type is the standard SiC heating element. A high-density self-bonded silicon carbide element, ED type is available in a large range of diameters and lengths.
 

Function of protective film

When the element is used in the air at 800 ℃, it begins to oxidize. When the temperature reaches 1000-1300 ℃, a layer of silica protective film is formed on the surface of the heating part. Cristobalite crystallizes at 1300 ℃, and the protective film reaches a certain thickness at 1500 ℃, so that the oxidation speed of the element becomes extremely slow and tends to be stable.
 

Details
 
1, Silicon carbide heating element is one type of ceramic heating elements,which use six-party high purity green SiC powder as the main raw material.Silicon is recrystallized under 2200C high temperature to form finished materials.The using temperature up to 1450C under oxidation atmosphere,and constant working life up to 2000 hours.It is widely used in various high temperature electric furnaces and othe electric heating devices,such as in the industries of magnet,ceramics,powder metallurgy,glass,metallurgy and machinery,etc.

2, Protech silicon carbide SiC heater element is a kind of nonmetal high temperature electric heating element.It is made of selected super quality green silicon carbide as main material,which is made into blank,silicide under high temperature and re-crystallized. Max temperature 1600 deg C.

3, Because of silicon carbide use to the high temperature, high temperature resistance, oxidation resistance, corrosion resistance, fast temperature rising, long life, high temperature deformation is small, convenient maintenance and installation, etc. and good chemical stability.And automation control system supporting, get accurate constant temperature, and can according to the needs of the production process of automatic temperature adjustment by the curve. The use of silicon carbide heating is convenient, safe and reliable.