Specifications
High strengh alumina ceramic plunger piston
-Precision finishing
--high strength
-High hardness
-Wear resistance
Features
1) A variety of specifications available.
2) Satisfy various technical request
3) Lower medium spoilage
4) Good insulation performance and high temperature resistance
5) Stiffness texture
6) Used in all electric products, electric heating products and wear resistant machinery parts.
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.
|
Table1: Technical Parameter Of Alumina Ceramics |
|
Item |
Test condition |
Unit& Symbol |
95%
Alumina Ceramics |
99%
Alumina Ceramics |
99.7%
Alumina Ceramics |
The Main
Chemical Ingredient |
|
|
Al2O3 |
Al2O3 |
Al2O3 |
|
Bulk Density |
|
g/cm³ |
> 3.6 |
3.89 |
3.96 |
|
Maximum Use Temperature |
|
º C |
1450 |
1600 |
1650 |
|
Water Absorption |
|
% |
0 |
0 |
0 |
|
ROHS Hardness |
|
|
≥ 85 |
≥ 89 |
≥ 89 |
|
Flexural Strength |
20 º C |
Mpa(psi*10³ ) |
358(52) |
550 |
550 |
|
Compressive Strength |
20 º C |
Mpa(psi*10³ ) |
2068(300) |
2600(377) |
2600(377) |
|
Fracture Toughness |
K(lc) |
Mpa m 1/2 |
4-5 |
5.6 |
6 |
|
Coefficient Of Thermal Expansion |
25-1000 º C |
1*10 -6 /º C |
7.6 |
7.9 |
8.2 |
|
Coefficient Of Thermal Conductivity |
20 º C |
W/mk |
16 |
30.0 |
30.4 |
|
Thermal Shock Resistance |
Δ Tc |
º C |
250 |
200 |
200 |
|
Dielectricity Constant |
1MHz. 25 º C |
|
9 |
9.7 |
9.7 |
|
Dielectricity Strength |
|
ac-kV/mm(ac V/mil) |
8.3(210) |
8.7(220) |
8.7(220) |
|
Volumn Resistivity |
100 º C |
ohm-cm |
> 10 13 |
> 10 14 |
> 10 14 |
Lianyungang Zhong Ao Aluminium Co. Ltd (AIZA)
Our Products:
Alumina Ceramic Ball
Alumina Ceramic Lining
Alumina Ceramic Cylinder
Alumina Wear Tile
Alumina Ceramic Beads
Alumina Ceramic Nozzle
Alumina Ceramic Ring
Insulation Ceramic
Customized Heterotypic Technical Ceramics
AIZA is a Lianyungang based Sino-Foreign joint venture corporation. It is a Chinese producer of calcined alumina and a manufacturer of alumina ceramics, such as alumina ceramic ball, alumina ceramic cylinder, alumina wear tile, ceramic insulator, ceramic element, ceramic beads, and other insulation ceramics with self-prepared material as well as German and Japanese material.
Since its creation, AIZA has served most of Chinese customers, Nanjing Huade, Zhuzhou Xianghuoju, and Chaozhou Sanhuan, which are eminent manufacturer of spark plug and advanced ceramic in China. Its "TCH" brand calcined alumina is well accepted by our customers.
In 2008, AIZA purchased 70 key equipment from Shanghai Morgan Matroc after its closure in China. The equipment includes isostatic press machine, dry press machine, hot press cast machine, ball mill, alumina spray prilling tower (centrifugal and pressure), polishing machine, etc. The equipment has been successfully installed in our factory by the end of 2008. Now, AIZA have succeeded in establishing itself as sole Chinese manufacturer of ceramic nozzle by isostatic dry bag pressing process. Besides, the most experienced technical engineer of former Shanghai Morgan Matroc also joined us, which is the precious source of our confidence of ensuring products quality.
TQC Procedures and ISO 9001: 2000- Certification
Our experienced QC will supervise the production and check the quality before delivery. We conduct TQC procedures according to ISO 9001: 2000-certified guidelines. In order to ensure better quality, we carry out five processes below:
1. Material inspection
2. Semi-manufactured goods inspection
3. Itinerary inspection
4. Finished products inspection
5. Shipment inspection.
Material Adopted:
Alumina
Zirconia
Steatite
Alumina-Zirconia
Technologies Adopted:
Dry Pressing
Isostatic Pressing
Heat Press Cast
Flowchart of Customized Service: Drawing Received---Researching and Tooling---Sample Collecting and Testing---Sample Accepted---Order Confirming.
