Dumbbell Type 1400℃ Silicon Carbide Heating Element Anti Oxidization
Dumbbell Type 1400℃ Silicon Carbide Heating Element Anti Oxidization
Silicon Carbide Heating Element Introduction
The Dumbbell style elements, with the enlarged cold ends, were one of the earliest designs of the heating elements, which were originally made oversized to increase the cold end cross section, lowering electrical resistance so as to lower the operating temperature of the cold ends. Modern Dumbbell elements, by contrast, all employ an advanced technology to keep the terminal ends cool by virtue of the decreased resistivity of the lower resistance of the material of the cold ends in the manufacturing process. Therefore, oversized cold ends are no longer necessary. Non-dumbbell or ED type elements can substituted for Dumbbell elements.
The first several inches of the cold ends are materialized with aluminum to provide a low-resistance contact surface. Normally electrical connections are made using flat aluminum braids, held in compression to the cold end circumference by stainless steel spring clamps.
Following should be provided when inquiring or ordering DB (Dumbbell) Silicon Carbide Heating Elements:
Type: DB
Outer Diameters: of the Hot Zone (D1) and of the Cold Zone (D2), mm
Length: of the Heating Section or the Hot Zone, HZ, mm
Length: of the Cold Zone, CZ, mm
Overall Length: OL, mm
Example: Type DB, D1/ D2=18/28mm, HZ=300mm, CZ=350mm, OL=1000mm, Resistance 1.70Ω
Specified as:
SPK DB18/28/300/350/1.70Ω
Silicon Carbide Heating Element Parameters
| Sic heating element Physical properties | |
| Density | 2.6-2.8g/cm³ |
| Hardness | >9MOH'S |
| Porosity Rate | <30% |
| Bending Strength | >300KG |
| Tensile Strength | >150kg/cm³ |
| Radinacy | 0.85 |
Feature
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
Silicon Carbide Heating Element Picture
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5 working days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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