Alumina Precision Ceramic Bushing
Thermostat ceramic shell
Satisfied technical request
Precision measure
OEM
1.we produce them with the 95% AL2O3 ceramic or steatite
ceramic, having revolutionary breakthrough if compared with traditional plastic parts,
2.they are highly improved in strength , insulation performation, heat resistance
performance, especially sensitivity to temperature.
3.High quality with low price
4.Raw material meet RoHS appliance
5.Fast delivery
The ceramic electronic components: low loss at high frequency. Good insulating , high strength, , low dielectric constant, Great mechanical strength, high air tightness, high chemical stability, etc. We can produce all kinds of ceramic holders, ceramic support, ceramic tubes, ceramic pipe, ceramic ring, etc. Widely used in electronic components, electronic device and electric products. Our products meet the international standards.
Features:
High mechanical strength High dielectric strength
Low loss in high frequency Low gas leakage coefficient
High voltage resistance High precise dimension
Materials Performance
| Item |
Unit | Performance | ||||||
Alumina ceramic |
steatite ceramic | ||||||||
90% | 92% | 95% | 96% | ||||||
Ceramic Body
| Appearance | Color | - | white,ivory white,brown,black | White off-white | ||||
Mechanical Characters |
Bulk Density | g/cm3 | ≥3.6 | ≥3.65 | ≥3.7 | ≥3..75 | 2.7 | ||
Water Absorption | % | 0 | 0 | ||||||
Flexural strength | MPa | 280 | 300 | 310 | 320 | 150 | |||
(HV) Hardness | GPa | 12 | 5.8 | ||||||
Thermal Characters |
Coefficient of linear thermal expansion | 20℃~800℃ ×10-6mm/℃ | 6.3~7.3 | 6.4~7.4 | 6.5~7.5 | 6.8~7.8 | 8.0 | ||
|
Thermal Conductivity | W/(m.K) | 12 | 16 | 20 | 23 | 2 | ||
Electrical Characters |
Dielectric constant(1MHz) | — | 9~10 | 9~10 | 9~10 | 10 | 7.5 | ||
Dielectric loss angle | ×10-4 | ≤6 | ≤5 | ≤4 | ≤3 | 8 | |||
Dielectric Strength | KV/mm | 15 | 20 | 24 | 28 | 18 | |||
Metalized Ceramics |
Gas leakage coefficient | Pa.m3/s | ≤10-8 | - | |||||
Volume resistivity | Ω.cm | ≥1015 | - | ||||||
Combined strength | MPa | ≥120 | - | ||||||
Thickness of Metal | μm | ≥20 | - | ||||||
Changsha Ultronic Ceramic Technology Co., Ltd is located in Changsha City, the capital of Hunan Province. Since its establishment in September 2010, Ultronic has been devoted to manufacturing alumina ceramics and steatite ceramics for electric components and industrial ceramics. Now we have the forming technologies of hot pressing, dry pressing, injection molding, tape casting, and isostatic pressing. We also have the special process of surface metallization, glazing, and polishing. Our routine products include ceramic thermostat housing, ceramic rod, metalized ceramic GDT tube, faucet cartridge ceramic disc, ceramic insulating plate and so on. And we supply to leading companies in respective business, such as and so on.