Sic heating element heater
1.main material:green silicon carbide
2.high applied temperature:1400c
3.anti-oxidization
U and Thin type Sic heating element heater with good fame
Thin type sic heating element heaters are made from quality SIC, which was also added to some additives according to the materials proportion. Silicon carbide electric heating elements are sintered non-metallic products of round section rod or tubular form.
Compared with metallic heating elements, they have a series of characteristics such as high temperature tolerance, oxidation and corrosion resistance, maintaining and setting-up conveniently and guarantee for a long life. Therefore, they are widely used in electronic and magnetic material, metallurgy, and machine industries
This consists of two Silicon Carbide legs with equal diameter. Each leg is divided into two parts, hot zone and cold zone with a joint. Resistance of both legs are equal to ensure a uniform performance. Both shanks are joined with a crossbar made of low resistance.
High Temperature Silicon Carbide Heating Elements
1)Production Process: Made into blank, silicided under high temperature and re-crystallized.
2)Usage: It is widely used in various high temperature laboratory furnace and other electric heating devices, such as in the industries of magnet, ceramics, power metallurgy, glass, and meallurgy.
3)Character: Higher temperature, antioxidation, anticorrosion, increasing temperature fast, low coefficient of thermal expansion and so on.
4)Heater Specifications and Resistance Range
Diameter | Length of Hot Zone | Length of Cold Zone | Overall Length | Resistance | Diameter | Length of Hot Zone | Length of Cold Zone | Overall Length | Resistance |
8 | 100-300 | 60-200 | 240-700 | 2.1-8.6 | 30 | 300-2000 | 250-800 | 800-3600 | 0.4-4.0 |
12 | 100-400 | 100-300 | 300-1100 | 0.8-5.8 | 35 | 400-2000 | 250-800 | 900-3600 | 0.5-3.6 |
14 | 100-500 | 150-350 | 400-1200 | 0.7-5.6 | 40 | 500-2700 | 250-800 | 1000-4300 | 0.5-3.4 |
16 | 200-600 | 200-350 | 600-1300 | 0.7-4.4 | 45 | 500-3000 | 250-750 | 1000-4500 | 0.3-3.0 |
18 | 200-800 | 200-400 | 600-1600 | 0.7-5.8 | 50 | 600-2500 | 300-750 | 1200-4000 | 0.3-2.5 |
20 | 200-800 | 250-600 | 700-2000 | 0.6-6.0 | 54 | 600-2500 | 300-250 | 1200-4000 | 0.3-3.0 |
25 | 200-1200 | 250-700 | 700-2600 | 0.4-5.0 |
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Notes for using and installing the heater:
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 assem bling 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 ne should follow the increasing resistance. If many are damaged or resistance increased too much, heater should be changed.
6. 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.
7. Usage: 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.
Factors of affecting working life of Sic heating element
Surface load
Atmosphere
Warm of insulating layer in furnace
Installation Density of sic heating element
Supporting machinery of furnace
Heating speed of heating element
Whether continuous usage etc.
