High Frequency Electrical Insulation Steatite Ceramic Tube For Electricity
High pure and high temperature resistance 95% Alumina ceramic tube
1. Description
Steatite ceramic is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products. We can make the part by hot injection pressing, dry pressing, 200T isostatic pressing and extrusion productive technology etc.
2. Advantage
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℃
| Item | Index | Unit | Steatite ceramic | 95 Al2O3 | 96 Al2O3 |
| Physical Characteristics | Bulk density | g/cm3 | 2.7 | 3.2 | 3.6 |
| Water absorption | % | 0 | 0 | 0 | |
| Mechanical Characteristics | Flexural strength | Mpa | 145 | 320 | 340 |
| Hardness Vickers | Gpa | 5.7 | 12.2 | 13.5 | |
| Poisson’s ratio | - | 0.21 | 0.22 | 0.23 | |
| Thermal Characteristics | Thermal conductivity | w/(m.k) | 2.5 | 16 | 24 |
| Electrical Characteristics | Dielectric constant(1MHZ) | - | 6.2 | 9 | 9.4 |
3. 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-relieving, 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
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