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Shenzhen Jinlongda Ceramics Technology Co., Ltd. is a modern special ceramics production enterprise integrating R&D, production and sales, We produce and sales multi types Al2O3 ceramic rod,99% Al2O3 ceramic rod, 96% Al2O3 ceramic rod, 95% Al2O3 ceramic rod.
Properties of alumina ceramics
Alumina ceramic is a 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.
Parameters of alumina ceramics
Item |
Test the condition |
Unit |
99 porcelain |
95 porcelain |
92 porcelain |
75 porcelain |
|
Material |
- |
- |
- |
99%Al2O3 |
95%Al2O3 |
92%Al2O3 |
75%Al2O3 |
Physical property |
Density |
Normal atmospheric temperature |
g/cm3 |
4.02 |
3.7 |
3.4-3.7 |
3.2-3.4 |
Water Absorption |
Normal atmospheric temperature |
% |
0 |
0 |
<0.5 |
<1 |
|
Refractoriness |
- | °C |
1750 |
1650 |
1580 |
1360 |
|
Mechanical performance |
Rockwell hardness |
Normal atmospheric temperature |
Mohs |
12 |
10 |
12 |
10 |
Flexural Strength |
Normal atmospheric temperature |
Mpa |
330 |
300 |
290 |
380 |
|
Compression strength |
Normal atmospheric temperature |
Mpa |
2800-3000 |
2500-2800 |
2500 |
2000 |
|
Hot performance |
Maximum Use Temperature |
- | °C |
1700 |
1500 |
1500 |
1300 |
Heat resistant shaking |
20O°C-1100O°C |
10Num |
Pass |
Pass |
Pass |
Pass |
|
Thermal Expansion Coefficient |
20O°C-80O°C |
×10-6mm/°C |
6.4-8.2 |
5.5-7.5 |
7.0-7.6 |
7.3 |
|
Heat-conduction rate |
25°C |
W/m.k |
31.4 |
21.8 |
15-20 |
6-7 |
|
W/m.k |
15.9 |
12.6 |
|||||
Production process alumina ceramic rod
Technical reference of manufacture for alumina ceramic rod
Technical reference of manufacture | |
Dimensional accuracy |
Up to 0.001mm |
Concentricity |
Up to 0.003mm |
Parallelism |
Up to 0.002mm |
The inner hole tolerance |
The minimum 0.005mm |
Straight flute |
The narrowest 0.1x100mm |
The thickness of the size |
Minimum to 0.02mm |
The screw thread |
Minimum internal thread M2 |
Cylindricity |
Up to 0.004mm |
The linear tolerance |
Up to 0.001mm |
The smallest aperture |
The minimum 0.07mm |
Precision process |
CNC maching,grinding,lapping |
Surface finish |
Glazed,polishing or metallized |
Applications of alumina ceramics
Alumina ceramics, zirconia ceramics and other special ceramics, widely used in electronic semiconductor equipment, medical, petrochemical, aerospace and other industries
Packaging & Shipping
Alumina ceramic rod wrapped by paper first individually, then packed in bubble bags, finally put in standard export carton or wooden box packing, or OEM packing.
Shipped by Express ( DHL, TNT, UPS, FEDEX, EMS ), Air, or Sea transport. The fastest delivery is within 3 days
FAQ
Q1: Are you trading company or manufacturer ?
A: We are factory.
Q2: Samples free or not?
A: Yes, Samples in free charge.
Q3. Can you produce according to the samples and drawings?
A: Yes.
Q4. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery for 3times.
Q5. After-sales service
A: If you find any broken products in mass quantity, we will produce again or compensate money directly and offer discount in next order. We can sign the quality agreement when order confirmed. So we must make sure quality for you.
http://www.jldceramics.com/
