Characteristics of silicon carbide and maintenance

Silicon carbide is silicon carbide as the main raw material of high temperature heating element. Synthesized in the late 1800s after silicon carbide, silicon carbide in 1905 by the German legal system into a synthetic silicon carbide industrial value, brand name called "Xi Lite" (Silit).

Country in 1957 successfully developed silicon carbide, and conduct industrial mass production. Silicon carbide is a high-purity green silicon carbide, carbon, silicide recrystallization at high temperature electric heating elements made of high temperature, the silicon carbide content of 98%,chemical sprayer so that the silicon carbide having substantially the same physical and chemical properties. Compared with other metal heating element, it has the following unique advantages: strong acid, strong antioxidant capacity; surface load density than the metal heating elements, heating quickly, high thermal efficiency; resistance to rapid thermal quench resistance, linear expansion coefficient; high thermal conductivity; use of high temperature, long life, normal air atmosphere, rod surface temperature up to 1600 ℃, continuous service life of up to more than 2000h. Install, easy to replace; wide source material. Their classification, the resistance value adjustment similar mounted on the same area, so close to the power supply. To test each silicon carbide heating element is good work, power clamp meter tests available individually measured current. In the same area a voltage equal to the current requirements under similar deviation does not exceed 10%, if the individual current is too small to explain the resistance. If the current is too small, not too much resistance is poor contact pin press. If there is no current may be silicon carbide heating element has been broken, should further examine the replacement.weed sprayer Carbide heating element brittle and easily broken, especially in the most vulnerable position with thread, the installation should be especially careful, gently, the installation should pay particular attention to not allow unilateral force, if necessary, apply heat-resistant silicon carbide steel trap Gently push and pull rod steel sleeve, the placement of sheath fixed. Silicon carbide heating element after a certain time, since the resistance value increases, the need to raise the voltage to compensate for the loss of resistance is increased and therefore require a certain voltage transformer adjustment range; For continuous operation of the furnace and forehearth voltage adjustment range of 0.7 ~ 2.5V (V is the initial use of silicon carbide components voltage). Supercharging regulation, can extend the life of the silicon carbide component.