C220 steatite ceramic resistor case
Ceramic resistor
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Advantages :
1). Excellent insulation ,security , long working life .
2). Precise grinding and polishing.
3). Excellent heat radiation, small size ,more environmental and energy-efficient .
4). good thermal conductivity
5). large specific heat capacity
6). low pressure drop
7). good heat-shock resisting ability
8). Working temperature: 600℃-1200℃
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Application :
1). Gas cooker,Water heater,Gas oven, Gas boiler,Air-conditioning and so on.
2). As ceramic parts of flexible pad and channel heaters at operations of pre and postweld heat treatment; Welding process, stress-rlieving, pre-heating & post heating, other resistance-heating environment
3). halogen lamps, high and low pressure uv lamps, mercury lamps, uv lamp holders and heating tubes.
4). high-power electrical applicance and all kinds of insulation device.
Properties | Units | Steatite | Cordierite | Mullite |
Colour | White | Yellow | White | |
Density | g/cm3 | 2.7 | 1.9 | 2.0 |
Flexural Strength | Mpa | 140 | 30 | 120 |
Compressive Strength | MPa | 900 | 350 | 500 |
Max Use Temperature | °C | 1000 | 1200 | 1300 |
Thermal Condutivity | W/m.K | 2~3 | 1.3~1.8 | 2~6 |
Thermal Expansion Cofficient | 10-6/°C | 7 ~ 9 | 1.5~3.5 | 5~6 |
Thermal Shock Resistance | K | 100 | 300 | 150 |
Specific Heat | J/kg.K | 850 | 800 | 900 |
Dielectric Strength | KV/mm | 20 | — | 30 |
Dielectric Constant | Er | 6 | — | 8 |
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