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Glazed Surface Ceramic for Vacuum Switching Tubes
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Product Details
| Place of Origin | Hunan, China | Type | Ceramic Tubes | |
| Material | Alumina Ceramic | |||
| Model Number | Customer's Requirements | Brand Name | Ultronic |
standard packing or according to customer's needs.
Product Description
Glazed Surface Ceramic for Vacuum Switching Tubes
The ceramic tubeswhich have glazed surface can apply with the quite harsh environment
because they have good moisture preventing ability and insulating ability.
Applications:high voltage relays,vacuum switching tubes,vacuum capacitors
Metallized ceramic can be application in the production of porcelain controls,
surge arresters, surge arrester with insulation, high temperature resistance,
good air tightness, fast heat dissipation, high mechanical strength and high stability
high voltage relays,vacuum switching tubes,vacuum capacitor in harsh working environment, good soldering and solder with gold, silver, copper, nickel and so on.
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 | - | ||||||
Company Profile
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 main 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.
Company Profile
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.
Contact Us
- Changsha Ultronic Ceramic Technology Co., Limited
- Contact nameshawn mao Chat Now
- Phone0086-731-88203556
- AddressTongguan town,Wangcheng district, Changsha, Hunan
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