Double Spiral Sic Heating Element for Kiln and Furnace
Description
The
Double Spiral Sic Heating Element is a kind of non-metal rod or tube shape high temperature electric heating element. It is made of selected super purity green hexagonal silicon carbide as main material, which is made into blank and silicon crystal under high temperature of 2400ºC. In oxidizing atmosphere, its service temperature can reach 1450ºC and continuous use life can reach 2000 hours.
Type: we have rod, u, w, h, gun, single spiral, double spiral, dumbbell, door like type
Features
1. High strength and excellent shock resistance;
2. Heat source is free of noise and air pollution;
3. Anti-oxidization;
4. Anti-corrosion,
5. Long service life,
6. Little deformation,
7. Easy installation and maintenance.
8. Excellent specific rate of heat zone resistance and cold end resistance,
9. Avoiding over-temperature of cold ends to damage the furnace body.
10. Saving energy
Product Application
Used in various high temperature electric furnaces and other electric heating devices, such as in the industries of magnet, ceramics, metallurgy, glass, and machinery.
Types
Outer Diameter: OD, mm Hot Zone Length: HZ, mm Code Zone Length: CZ, mm
Overall Length: OL, mm Resistance
The influence to Rod surface in different Operating Temperature and Surface Load
| atmosphere |
Furnace Temperature(ºC) |
Surface Load(W/cm2) |
The influence on the Rod |
| Ammonia |
1290 |
3.8 |
The action on SiC produces methane and destroys the protection film of SiO2 |
| Carbon dioxide |
1450 |
3.1 |
Corrode SiC |
| Carbon monoxide |
1370 |
3.8 |
Absorb carbon powder and influence the protection film of SiO2 |
| Halogen |
704 |
3.8 |
Corrode SiC and destroy the protection film of SiO2 |
| Hydrogen |
1290 |
3.1 |
The action on SiC produces methane and destroys the protection film of SiO2 |
| Nitrogen |
1370 |
3.1 |
The action on SiC produces insulating layer of silicon nitride |
| Sodium |
1310 |
3.8 |
Corrode SiC |
| silicon dioxide |
1310 |
3.8 |
Corrode SiC |
| Oxygen |
1310 |
3.8 |
SiC oxidized |
| Water-vapor |
1090-1370 |
3.1-3.6 |
The action on SiC produces hydrate of silicon |
| Hydrocarbon |
1370 |
3.1 |
Absorb carbon powder resulted in Hot pollution |
Technical Index
| specific gravity |
2.6~2.8g/cm³ |
bend strength |
>300kg |
| hardness |
>9 MOH′S |
Tensile strength |
>150kg/cm³ |
| porosity rate |
<30% |
Radiancy |
0.85 |
Notice for using and installing
1. Heater should be protected against damp during storing or installing to ensure the performance of the heater.
2. In order to be sure of well-distributed lod of each and groups, heater should be divided before assembling. The tolerance of the resistance of each one cannot exceed by 10% each other.
3. Heater is hard and brittle, please be careful when assembling and maintaining so as to avoid damage.
4. When operating the electric furnace at the beginning, the voltage should be increased slowly and cannot be fully loaded at once. Otherwise the larger current will be resulted in the damage of heater.
5. When heater is damaged and need to be changed, the resistance of new one should follow the increasing resistance. If many are damaged or resistance increased too much, heater should be changed.
Package: Wooden Box filled with Polyfoam
We also received OEM service, the package can be designed according to your requirements.
Shipping: By vessel or by plane from any Chinese port, Samples can be delivered by International express.
Package pictures of silicon carbide heating elements
Our Service:
1. Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand, quickly respond mails and provide solutions.
2. Sample evaluation
Sample and trial order is accepted for the quality evaluation.
3. Strict quality control
Arrange production on time and control quality strictly.
4. Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5. Professional Services
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
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