Material Characteristics
• High Hardness and Wear Resistance: The alumina thrust washer has a high hardness, with a Rockwell hardness of up to HRA80 - 90, and its wear resistance is far higher than that of ordinary metal materials.
• High Temperature Resistance: It can withstand high temperatures of up to 1600°C, and can maintain stable mechanical properties in high - temperature environments without deformation or softening.
• Good Chemical Stability: It has excellent chemical stability, is not easily corroded by acids, alkalis, and other chemical substances, and has a long service life in harsh chemical environments.
• Good Electrical Insulation: Alumina ceramic has high resistivity and low dielectric loss, so the alumina thrust washer can also play a good role in electrical insulation in some electrical equipment.
Technical Parameters
| Item |
Unit |
Zirconia ceramic |
99% alumina ceramic |
96% alumina ceramic |
95% alumina ceramic |
Steatite ceramic |
Mullite ceramic |
Cordierite ceramic |
| Bulk density |
g/cm3 |
6 |
3.8 |
3.7 |
3.6 |
2.8 |
2.2 |
2.3 |
| Water absorption |
% |
0 |
0 |
0 |
0 |
0 |
12 |
12 |
| Thermal Conductivity |
(w/m.k) |
10 |
19-30 |
16-28 |
14-24 |
2-3 |
2-6 |
1.3-1.8 |
| Resistance to thermal shock,Minimum |
TK? |
70 |
150 |
140 |
140 |
80 |
150 |
300 |
| Withstand voltage,Minimum |
KV |
15 |
20 |
18 |
18 |
20 |
25 |
- |
| Flexural strength |
Mpa |
1000 |
300 |
280 |
240 |
120 |
120 |
30 |
| Sintering temperature |
β |
1500 |
1670 |
1600 |
1600 |
1250 |
1250 |
1250 |
| Maximum working temperature |
β |
1200 |
1500 |
1200 |
1200 |
800 |
1000 |
1000 |
Application
• Aerospace Field: In aircraft engines and rocket engines, alumina thrust washers are used in high - temperature and high - load parts to withstand high - temperature gas erosion and mechanical load while reducing friction.
• Automotive Industry: In the engines and transmissions of new energy vehicles, alumina thrust washers can improve the efficiency and service life of the components.
• Industrial Machinery: In some high - speed and high - load industrial machinery, such as pumps, compressors, and motors, alumina thrust washers can reduce wear and energy consumption and improve the reliability and service life of the equipment.
Advantages
1. we support OEM and ODM;
2. We have a professional R&D team and technical support;
3. We provide real-time logistics update information;
4. We support 24-hour online service;
5. We support T/T,L/c payment;
6. We have a professional QC team to check the quality before delivery.
Certificate
FAQ
1. How can you get quotation?
Please kindly send me your drawing with technic requirement and demand quantity.
If you don't have the drawing, please kindly courier samples to us. we will quote our best price in 24 hours.
2. How can you get samples?
We can supply free samples if we have them in stock. If we haven't produce the products, we can supply some free samples after getting tool fee. Please take note that the courier fee should be at destination.
3. What’s the lead-time for samples and batch orders?
It is 18days for supplying samples. It is around 25days for batch orders.
4. Can I visit you?
Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.
