Min. Order:500 Piece/Pieces
Transportation:Ocean,Land,Air,Express
Port:Shenzhen Port,Hongkong
$3-50 /Piece/Pieces
Model No.: Customized
Brand: Jinghui ceramics
Place Of Origin: China
Types Of: Electrothermal Ceramics, High Frequency Ceramics, Dielectric Ceramics, Insulating Ceramics
Material: Zircon, Zirconia, Alumina, Zirconium Oxide, Aluminum Nitride, 96% aluminum oxide, 99% aluminum oxide
Precision Process: Fine Grinding, Cnc Machining
Metallization Type: Molybdenum, Tungsten Optional
Coating Type: Nickle, Silver, Gold Plating Optional
Color: Pure White, Pink, Red, Grayish
Thickness Of Metallization: Thickness Range From 15~40um
Thickness Of Plating: Thickness Range From 0.2~70um
Surface Finish: External Surface To Be Glazed
Application: High Voltage/High Current Feedthru
Packaging: Vacumm packaging with export carton
Productivity: 50,000pcs/month
Transportation: Ocean,Land,Air,Express
Place of Origin: China
Supply Ability: 100,000pcs/month
Certificate: RoHS
HS Code: 8547100000
Port: Shenzhen Port,Hongkong
Metalized ceramic tube body is one of critical part in vacuum power feedthroughs, which offer unmatched dielectrical strength and outstanding mechanical strength. In the meantime, the ceramic tube could make the leakage rate low to 1*10-11 Pa.m3/s after brazing between ceramic and metal components.
They are commonly made from high purity Alumina Ceramic, such as 96% alumina, 99% alumina. They can be shaped by dry pressed, Isostatic pressed. In order to increase the electrical insulation strength and keep the surface of ceramic body away from foreign contaminations, sometimes, the Ceramic Tubes needs to be with glass glaze finish.
We can proceed with small part-size to large part-size, the min. diameter can be 1mm, the largest diameter is up to 500mm. In order to meet customers' different needs, we offer a selection of types of metallization, the typical ones as below:
1. Ceramic tube + Molybdenum (Mo/Mn) metallization ............................2. Ceramic tube + Mo/Mn metallization + Nickle(Ni) plating
3. Ceramic tube + Silver(Ag) plating..........................................................4. Ceramic tube + Tungsten (W) metallization + Gold(Au) plating
Leak Rate ≤1x10-11Pa.m3/s Metal Layer Tensile Strength ≥150Mpa Volume Resistivity Insulation Strength ≥18kV/mm (D•C) Dielectric Constant 9~10(1MHz, 20°C) Cosmetic Quality:1. No cracks, no bubbles; 2. Evenly distributed glaze; 3. No contamination
≥108Ω•cm
Coefficient of Thermal Expansion
(5 ~ 8.0) × 10-6 /°C
Widely used in vacuum interrupters, Electron tubes,Gas discharge tube, Vacuum capacitor,Vacuum thyristors, Surge arresters, Thyristor housings, Diode housings,Power grid tubes,Traveling wave tubes,Insulator rings and cylinder,X-ray tubes and so on.
We have a complete comprehensive of production equipment for Metallized ceramics from shaping to electroplating.It helps us to make the dimensional consistency very well. Also, helping us to offer a competitive price.
Q 1. Is it available to provide customize products?
A: We could support custom-made demand as per different dimensions, design and metallization and plating.
Q 2. When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry.
Q 3. How long does the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.
Q 4. What about the transportation and delivery date?
A: Normally we use Int`l express by our forwarder, or with client`s account number. It is about 3~5 working days.
Q 5. How to ensure the quality?
A: The dimension out of any batch will be carried out sampling inspection per International AQL standard. 100% cosmetic inspection will be done.