Lower Price Black Silicon Carbide Electric Heater Used as a Furnace Accessory

• Type: Heater
• Material: Silicon Carbide
• Form: Tube
• Model NO.: SF001
• Shape: Tube
• Oxidizability: Anti-Oxidization
• Corrosivity: Anti-Corrosion
• Service Life: Long
• Installation.: Easy
• Purity: High
• Transport Package: Polywood Case
• Specification: dia 8~60 mm
• Trademark: JIAXIN
• Origin: China
• HS Code: 69039000
• Production Capacity: 5000000
• Package Size: 80.00cm * 60.00cm * 40.00cm
• Package Gross Weight: 20.000kg

Product Description

Description

The silicon carbide heating element is a kind of non-metal high temperature electric heating element. It is made of selected super quality green silicon carbide as main material, which is made into blank, silided under high temperature and re-crystallized.

silicon carbide rod is a kind of non-mental high temperature electric heating element.It is made of selected high-purity green silicon carbide as raw material which is made into blank and silicon crystal under high temperature of 2400ºC. It can usually make use for furnance which temperature from 600C-1600ºC. It is widely used in various electric heating element of glass,chemical, electronic material and so on.
 

Application

It is widely used in various high temperature electric furnacesand other electric heating devices, such as in the industries of magnet, ceramics, powder metallurgy, glass, metallurgy and machinery, etc.
 

Advantages

We adopt new production process of cold ends, so our SIC heating elements have excellent specific rate of heat zone resistance and cold end resistance, saving energy, long life, avoiding over-temperature of cold ends to damage the furnace body.

Compared with metal electric heating element, this kind of element is characterized by high-applied temperature, anti-oxidization, anti-corrosion, long service life, little deformation, easy installation.
 

Product Parameters

Physical Property
 

Specific Gravity	2.6~2.8g/cm3	Bend Strength	>300kg
Hardness	>9MOH'S	Tensile Strength	>150Kg.cm3
Porosity Rate	<30%	Radiancy	0.85

Chemistry Property

1.Antioxidation Property of Elements

The element start to being oxidized when heat to 800°C in air, and a SiO protect film will be generated in surface of hot zone when temperature get to 1000-1300°C ; cristobalite will be crystallized at 1300°C; the protect film get to a certain thickness when the temperature get go 1500°C which make the oxidation speed being very slowly to stable. if continue to heat to over 1627°C ,the protect film will be damaged and oxidation speed will be more rapid evidently and make the element damaged earlier.
Thought the element will be oxidized very slowly in course of application, it also will make the resistance increased following long time application, this phenonenon calls ageing , in order to lower the ageing speed, we use special technology to spread a protect film on the surface of hot zone in the course of production, which enhance the antioxidant property of element evidently and lengthen the service life.

2.The effects of alkali and alkaline metal oxide to elements.
The alkali and alkaline metal oxide will react with SiC at about 1300°C and generate silicate, which calls alkali-chemical corrosion, and can influence the glowing of element. 

3.The effects to elements from melting metal
Some metals ,such as cobalt, nickel, chrome and so on, can corrade the element in high temperature melting state and affect the service life of element.

Electric Property

SIC heating elements has rather large specific resistance , when it is heated in air and the surface temperature of the hot zone reaches 1050ºC, it's resistance rate is 600-1400 mm2/mm (square millimetre , its resistance value changes as the temperature rises. From room-temperature to 800ºC is negative value , over 800ºC is positive value nature curve. 
 

Product Specification

 

Diameter	Heating zone	Cold zone	Overall length	Range of resistance
	Length	Length
8mm	100-300mm	60-200mm	240-700mm	2.1-8.6 ohms
10mm	100-300mm	60-300mm	240-900mm	0.8-7.0 ohms
12mm	100-500mm	150-350mm	400-1200mm	0.7-5.6 ohms
14mm	100-500mm	150-350mm	400-1200mm	0.7-5.6 ohms
16mm	200-600mm	150-350mm	500-1600mm	0.7-4.4 ohms
18mm	200-800mm	150-400mm	500-1600mm	0.7-5.8 ohms
20mm	200-800mm	200-600mm	600-2000mm	0.6-6.0 ohms
25mm	200-1200mm	250-700mm	700-2600mm	0.4-5.0 ohms
30mm	300-2000mm	250-800mm	800-3600mm	0.4-4.0 ohms
35mm	400-2000mm	250-800mm	900-3600mm	0.5-3.6 ohms
40mm	500-2700mm	250-800mm	1000-4300mm	0.5-3.4 ohms
45mm	500-3000mm	250-750mm	1000-4500mm	0.3-3.0 ohms
50mm	600-2500mm	300-750mm	1200-4000mm	0.3-2.5 ohms
54mm	600-2500mm	300-750mm	1200-4000mm	0.3-3.0 ohms
60mm	600-2500mm	300-750mm	1200-4000mm	0.3-3.0 ohms

How to Order  SiC heating element
1. Choose the shape you need, like Rod, U, W, Single Spiral etc.
2. Out Diameter (OD)
3. Heating Zone Lengh (HZ)
4. Overall Length (OL)
5. Resistance you need.
Order Sample: Rod type, OD30mm, HZ300mm, OL800mm, Resistance
 

Installation Instructions

1. Be protected against damp during storing or installing to ensure the performance ;
2. Divided before assembling. The tolerance of the resistance of each one cannot exceed by 10% each other;
3. Be careful when using and maintaining;
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 ne should follow the increasing resistance. If many are damaged or resistance increased too much, heater should be changed.
 

Detailed Photos

Packaging & Shipping

Company Profile

1. Our company is a high & new technology enterprise specially engaged in developing, manufacturing and selling SiC (silicon carbide) heating elements and  Molybdenum disilicide (Mosi2) heating elements and silicon carbide protective pipes and graphite parts and sagger

2. It established in the year 2007, with more than 16 years experience for produciton.

3. Products are exported to USA, Germany, France, Poland, Spain,Turkey, Russia, Ukraine, Japan, Korea, Singapore, Vietnam, Thailand and Iran, etc.. They are highly approved by our customers all over the world.