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Silicon Carbide Resistance Heater 1300 ℃

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Silicon Carbide Resistance Heater 1300 ℃

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Brand Name : Spark

Model Number : All-Type

Certification : SGS

Place of Origin : He'nan, China

MOQ : 10Pcs

Price : Negotiable

Payment Terms : T/T, L/C

Supply Ability : 100000 PCS/Month

Delivery Time : 7-30 Days

Packaging Details : Standard Wooden Case with Sponge and Carton inside

Product Name : Silicon Carbide SiC Heating Element

Power : 4500 Watt

Material : Silicon Carbide (SiC)

Shape : ED/U/W/SC/SCR/DB/G/H/DM

Power Source : Electric

Working Temperature : up to 1450℃

Application : High Temperature Electric Furnaces And Electric Heating Devices

Voltage : 12-480v

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Silicon Carbide Resistance Heater 1300 ℃


Electric Resistance High Temperature Silicon Carbide SiC Heater Heating Element For Furnaces


General Description


Silicon carbide (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 1450°C and continuous use life can reach 2000 hours.


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

Types and Applications of SiC Heating Elements:


There are ED, U, W, H, Gun, Single Spiral, Double Spirals, Dumbbel, Door-like types and etc. which are widely used in various high temperature electric furnaces in air, vacuum and other protection gas environments and other electric heating devices, such as industries of magnet, ceramics, powder metallurgy, glass and machinery, etc.

1. SW (Standard)

SW Silicon Carbides are used in applications ranging in temperature from 600°C up to 1400°C in both air and controlled atmospheres. Although the type of atmosphere used will determine the maximum recommended element temperature. This kind of silicon carbide elements can be mounted either vertically or horizontally.

2. U-TYPE

U shape Silicon Carbide is consists of two silicon carbide rod with same diameter. Each rod has both hot zone and cold end with identical resistance. Two rods are connected by the low resistance SiC. Also the connector could be used as holder according to different requirements.

3. W-TYPE

3-phase elements are available in 2 different types: SGC (Dumbbell), SGD(Standard).

These elements are self-bonded silicon carbide formed by re-crystallization of silicon carbide at high temperature. It consists of three high-purity silicon carbide rods connected at one end by a silicon carbide crossbar. SGC elements are designed for vertical installation in standard float glass bathes and SGD elements for horizontal installation. They can be connected directly on three-phase power supply and is a one-side terminal type which permits drawing out the terminals from the roof of the furnace.

4. Single Spiral Silicon Carbide and Double Spiral Silicon Carbide:

They are made from silicon Carbide powder, and have two shapes: single and double sprial silicon carbide heating element. They are widely used in all kinds of kilns and furnaces.

Normally the following should be given when describing any type of SiC heating elements:

  • Type: ED, U, W, SC, SCR, DB,G, H, or DM
  • Outside Diameter (OD) : mm
  • Length of Hot Zone (HZ) :mm
  • Length of Cold Zone (CZ) :mm
  • Length of Overall(OL):mm
  • Center Distance (A) :mm
  • Resistance (at 1050℃+/-50℃) :Ω

Physical property of SIC heating element

specific gravity2.6~2.8g/cm³bend strength>300kg
hardness>9MOH’Stensile strength>150kg/cm³
porosity rate<30%radiance0.85

Recommended surface load and Influences to Surfaces of the Elements in Different Operating TemperatureS

atmosphereFurnace Temperature(°C)Surface Load(W/cm2)The influence on the Rod
Ammonia12903.8The action on SiC produces methane and destroys the protection film of SiO2
Carbon dioxide14503.1Corrode SiC
Carbon monoxide13703.8Absorb carbon powder and influence the protection film of SiO2
Halogen7043.8Corrode SiC and destroy the protection film of SiO2
Hydrogen12903.1The action on SiC produces methane and destroys the protection film of SiO2
Nitrogen13703.1The action on SiC produces insulating layer of silicon nitride
Sodium13103.8Corrode SiC
silicon dioxide13103.8Corrode SiC
Oxygen13103.8SiC oxidized
Water-vapor1090-13703.1-3.6The action on SiC produces hydrate of silicon
Hydrocarbon13703.1Absorb carbon powder resulted in Hot pollution

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.


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4500 Watt Silicon Carbide Heating Element

      

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