silicon carbide electric heating element with temperature control
U shape, straight shape, Wshape
After-sales Service Provided:
No overseas service provided
1000 Piece/Pieces per Month
Packaging & Delivery
First, packaging with moisture-proof paper
Second, packaging with kraft paper
Third, packaging with foam plastics in all side of plywood case.
Finally packing products in plywood case
Honesty factory price silicon carbide electric heating element with temperature control
Heating elements for metallurgy, glass, ceramics, refractory materials, magnetic materials, crystal, electronic components and other industrial furnaces high-temperature furnace.
Silicon carbide heating element is a kind of silicon carbide as the main raw material of non-metallic electric heating element, with a small expansion coefficient not easily deformed, chemical stability, long life, easy installation and maintenance. Furnace temperature of the silicon carbide heating elements can be used for the 600 ℃ -1600 ℃, it can be used in the air, without any protective atmosphere, widely used in metallurgy, ceramics, glass, machinery, analysis of field testing, semiconductor, scientific research, etc.
Type silicon carbide Our company can provide "m" type, "u" type, "h" and straight-type silicon carbide rod type, you can buy various types of furnaces according to the actual situation, different specifications of silicon carbide, if there are special needs, It can be resolved through consultation.
Electrical properties of silicon carbide Silicon carbide has a large specific resistance, ohmic heating in the air, the surface temperature of the heating unit 1050 ± 50 ℃, the resistance was 600-1400Ω-mm2 / M. As silicon carbide resistance with increasing temperature change, from room temperature to 800 ℃. Resistance - temperature characteristic curve is negative, positive temperature higher than 800 ℃.
Silicon carbide surface load Silicon carbide surface load = rated power / heating unit surface area (W / cm2) Silicon carbide surface load size and its length of life of a great relationship, so that when energized heating should be strictly controlled within the allowable range of the load and avoid overload. Under the Ministry of silicon carbide heating surface temperature and corresponding furnace, the heating portion surface allows the unit load in the table above. Effect of atmosphere on silicon carbide Furnace atmosphere have a major impact on the life of silicon carbide heating elements, silicon carbide in the course of gradual oxidation of SiO2, SiC crystal grains are separated, local resistance increases, volume expansion, until the last break. Silicon carbide heating element in clean and dry air in continuous use (1450 ℃) life up to 2000 hours