1200 ℃ SiC Heater Electric Furnace Heating Element
Electrical properties of SiC Heater
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 ℃.
SiC Heater Advantages
-
High purity raw materials;
-
Maximum temperature being up to 1500℃ (2732°F);
-
Easy to be installed and replaced.
W type SiC heaters can be installed and replaced while the tin bath is operation. The heaters can be installed through the side-seal, or through the side of the bath roof, and are commonly used to extend campaign lives, where conventional elements in the side zones have been broken, and insufficient power is available.
SiC Heater Physical properties
|
Sic heating element Physical Parameters
|
|
Density
|
2.6-2.8g/cm³
|
|
Hardness
|
＞9MOH'S
|
|
Porosity Rate
|
＜30%
|
|
Bend Strength
|
＞300kg
|
|
Tensile Strength
|
＞150kg/cm³
|
|
Radicancy
|
0.85
|
Chemical Properties
1. Antioxidant property of elements
2. Alkali&alkaline metal oxide will come out alkali-chemical corrosion
3. Melting metal can corrade the element and affect the life.
Remarks: Please provide the following when an inquiry or order is send.
-
Type: W (3-Phase)
-
Outer diameter (OD): mm
-
Hot zone length (HZ): mm
-
Cold end length (CZ): mm
-
Shank spacing (A): mm
Examples: W type, OD=20mm, HZ=250mm, CZ=350mm, OL=625mm, A=52mm, Resistance 0.9Ω
Specify as: W, 20/250/350/52/0.90Ω
