Silicon carbon rod is made of high purity green six-party silicon carbide as main raw materials, processing according to certain material than blocking, the recrystallization silicide 2200 ℃ high temperature sintering and rod, tube made of high temperature electric heating element, not of metal. Oxidizing atmosphere in normal temperature can reach 1450 ℃, continuous use of up to 2000 hours.
Introduction :
Silicon carbide using high temperature, high temperature resistance, oxidation resistance, corrosion resistance, heat up fast, long service life, high temperature deformation is small, easy installation and maintenance etc, and has good chemical stability. And automatic electric control system, precise constant temperature can be obtained, but also according to the needs of the production process according to the curve automatic temperature adjustment. The use of silicon carbide heating is convenient and safe and reliable.
Is now widely used in electronics, magnetic materials, powder metallurgy, ceramics, glass, semiconductor, analysis test, scientific research and so on high temperature field, tunnel kiln, roller kiln, glass furnace, vacuum furnace and muffle furnace, melting furnace and the electric heating element of all kinds of heating equipment.
Silicon carbide heating elements performance: the physical and chemical properties editor.
Physical properties:
Components: hard, brittle, resistance to thermal shock, high temperature is not easy to deformation, other physical properties are as follows:
Coefficient of thermal conductivity: 20 kcal/m · h · degrees
Linear expansion coefficient: 5 x 10-6 (m / ℃)
Chemical properties:
Silicon carbide has good chemical stability, acid resistant ability.
Under the condition of high temperature alkali erosion to it.
Silicon carbide components at above 1000 ℃ can use for a long time with oxygen and water vapor in the role is as follows:①Sic+2O2→Sio2+CO2 ②Sic+4H2O=Sio2+4H2+CO2
1) Sic + CO2 + o2 - > 2 Sio2 (2) the Sic h2o + 4 = Sio2 + 4 h2 + CO2
The components of SiO2 content increasing, resistance increases slowly, for aging.
Too much such as water vapor, will promote the oxidation of SiC, produced by the reaction (2) the type of H2 and O2 combination of H2O in the air reacts to a vicious cycle.
Reduce the useful service life of components.
Silicon carbon rod is made of high purity green si
Silicon carbon rod is made of high purity green si
Silicon carbon rod is made of high purity green si
Silicon carbon rod is made of high purity green si
