Fine Grinding Workshop
2 month ago
Technical Key Parameters of metallized ceramic tubes
|
Leak Rate |
≤1 x 10-11 Pa.m3/s |
Metal Layer Tensile Strength |
≥150 Mpa |
|
Volume Resistivity |
≥108Ω•cm |
Coefficient of Thermal Expansion |
(6.5 ~ 8.0) × 10-6 /°C |
|
Insulation Strength |
≥18 kV/mm (D•C) |
Dielectric Constant |
9~10(1MHz, 20°C) |
|
Cosmetic Quality:1. No cracks, no bubbles; 2. Evenly distributed glaze; 3. No contamination |
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The description of metalized ceramics
Depositing a metallic coating of Molybdenum-manganese(Mo-Mn) / Tungsten (W) based paints followed by nickel /gold plating, Afterwards, an interface offered that enables ceramic to metal or ceramic to ceramic joining by means of brazing via solder.
In common case, a layer of metallization layer is applied with a typical thickness of 10 to 30 µm after cured. The metallization sintering process is carefully controlled to achieve a balanced mixture of Molybdenum particles surrounded by a matrix of glass to ensure high bond strength between the metallized layer and the ceramic base. In order to increase the wettability at subsequent brazing processing, we make the nickel plating to be 2~6 um. We can offer a selection of metallization types as below:
1. Ceramic body base + Molybdenum (Mo/Mn) metallization only 2. Ceramic body base + Silver (Ag) plating
3. Ceramic body base + Tin (Sn) plating only 4. Ceramic body base + Molybdenum(Mo/Mn) metallization + Nickle plating
5. Ceramic body base + Tungsten (W) metallization + Gold(Au) plating
We are capable of offering high precision metallized ceramic bushing via fine grinding, CNC machining, cutting processes. The tolerance can be +/-0.01 for overall dimensions.
FAQs (Frequently Asked Questions)
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. How long does the whole procedure being worked out?
A: After you place an order, the manufacturing time is about 25 working days.
Q 3. 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 4. How to ensure the quality?
A: The brazing strength test and hermetricity test will be done before shipping.
The KPI will be used in the production line ,also sampling inspection for dimensions will be performed per AQL 0.65.
Q 5. What any other products do you produce?
A: We also manufacture a variety of ceramic grinding burrs, advance ceramic plates, zirconia ceramic components.
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Main Product:
Metallized ceramics ,
Precision ceramics,
Pepper Grinder Mechanism,
Ceramic Grinding Mechanism,
Alumina Ceramic Plate,
Ceramic Substrate
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