Typical Applications of Cermet Heating Elements Ceramic Industry Metallurgical Industry Glass Industry

• Type: Sic Rod
• Material: Silicon Carbide
• Form: Tube
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: SICR001 SICU001 SICW001
• Shape: Tube
• Price: Better
• Service: Super
• Transport Package: Polywood Case
• Specification: DIA 8 -50MM
• Trademark: JIAXIN
• Origin: China
• HS Code: 85149090
• Production Capacity: 100000
• Package Size: 130.00cm * 50.00cm * 50.00cm
• Package Gross Weight: 40.000kg

Product Description

 
High Temperature silicon carbide electric heating elements rods
 

Silicon Carbide (SiC) heating elements is a non-metal electric heating element made from SiC as its main raw materials.  It has some specific properties, such as low expansion coefficient, little deformation, stable chemical property, long service life, easy installation and maintenance, etc. Silicon Carbide (SiC) heating elements can usually make use for furnace which temperature from 600degree celsius-1600.degree celsius It can be directly used in an air atmosphere without any protection atmosphere. It is extensively used in the fields of metallurgy, ceramics, glass, machinery, analysis test, semiconductor, science & research and so on. Advantages of Silicon Carbide Electric Heating Elements Economical, dependable, clean, quiet and safe No fuel availability or storage problems No noxious fuel exhaust to be ducted away Efficiently handle a wide range of products and atmospheres Elements that operate at 600 degree up to1550 degree One of the highest hot:cold ratios in the industry
Typical Applications of Cermet Heating Elements
Ceramic Industry
Ferrites	Dinnerware
Titanates	Whiteware
Steatites	Pottery
Electrical porcelain	Tile
Refractories	Spark plugs
Grinding wheels	Calcining: powders, ores
Metallurgical Industry
Assaying	Deoxidizing
Heat-treating	Sintering
Hardening	Brazing
Forging	Melting and holding
Annealing
Glass Industry
Melting
Holding
Refining
Electronics Industry
Crystal growing
Diffusion

 

 
Products specification: Rod type, U type, W type (Three Phase type), Solid Rod type, Spiral type, 5 piece type (dual hot zone). Sizes are available from Dia 12mm, 14mm, 16mm, 18mm, 20mm, 25mm, 30mm, 31.7mm (1.25inch), 35mm, 38.1mm (1.5 inch), 40mm, 44.4mm (1.75 inch) to 54mm (2.125 inch) for all types.
 
Application of High quality ED (rod) type sic heating rod:
Silicon Carbide (SiC) heating elements can usually make use for furnace which temperature from 600-1600. 
It can be directly used in an air atmosphere, without any protection atmosphere. It is extensively used in the 
fields of metallurgy, ceramics, glass, machinery, analysis test, semiconductor, science & research and so on.

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. 

Ruglar size of the SiC Heating elements, special ones better with drawings:

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