Metallization Ceramic Tube
metallized ceramic insulator tube
1.electrical ceramic insulator tube
2.vacuum ceramic insulation tube
3.we have our own factory,we are the manufacturer
4.Special type accept OEM
Alumina Metallized Ceramic Tube/ Industrial Ceramic Pipe
1.Main alumina content:75%,96%,99%,99.8%
2.Good Bending strength,Wear & Corrosion Resistant
3.Design and make strictly according to the customers' requirments
Introduction:
The ceramic materials used offer many important properties, including, low dielectric loss, consistent dielectric constant, high mechanical strength and nil porosity. Our ability to metallise and braze to produce sub-assemblies, allows our customers to concentrate on their core competencies.
Applications:
Vacuum ceramic tube
Vacuum interrupter
Vacuum relay
Vacuum capacitor
Diodes
Thyristor
Gate turn-off (GTO) device
IGBT press pack housing
We offer Ceramic Tube in single, double and 4-bore tubing and oval double bore tubing at stocked lengths. The sizes of these ceramic tubes range from .020” to 8.250” (.50mm – 209.55mm).
If a special shaped ceramic tube is required, please advise and we will be happy to quote. Larger diameters and longer lengths available by quotation. Please requestquote or contact us.
Alumina 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, isostatic pressing and extrusion productive technology etc
|
Item |
|
Unit |
95 Al2O3
|
96 Al2O3
|
99Al2O3
|
Physical Characteristics |
Bulk density |
g/cm3 |
3.6 |
3.6 |
3.9 |
Water absorption |
% |
0 |
0 |
0 |
Mechanical Characteristics |
Flexural strength |
Mpa |
320 |
340 |
360 |
Hardness Vickers |
Gpa |
12.2 |
13.5 |
15.6 |
Elastic modulus |
Gpa |
280 |
320 |
370 |
Poisson’s ratio |
- |
0.22 |
0.23 |
0.23 |
Thermal Characteristics |
Linear expansion coefficient |
(200C-5000C) 10-6/0C |
7.1 |
7.2 |
8 |
Thermal conductivity |
w/(m.k) |
16 |
24
|
32 |
Specific Heat |
*10-3J/(kg*K) |
0.78 |
0.78 |
0.9 |
Electrical Characteristics |
Dielectric constant (1MHZ) |
- |
9 |
9.4 |
9.9 |
Dielectric loss angle |
*10-4 |
15 |
5 |
1 |
Dielectric strength |
*106V/m |
12 |
15 |
15 |
Processing technology |
Process range (mm) |
Outside Diameter |
1---300 |
Inside Diameter |
0.5---300 |
Length |
0.5---1200 |
Accuracy of working (mm) |
Perpendicularity |
0.01 |
Concentricity |
0.01 |
Roundness |
0.005 |
Straightness |
0.005 |
Parallelism |
0.01 |
Planeness |
0.005 |
Roughness |
0.05 |
Fit clearance |
0.005 |
We have our own factory.
Our Office
Welcome to our factory!We would be your best choice!