Active Member
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[China]
Address: NO 21st ChuangXing Road, Shangsha community , Changan Town, Dongguan city Guangdong province, China
Contact name:Admin deng
Dongguan Ming Rui Ceramic Technology Co.,ltd |
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Refractory Zirconia Ceramic Piston Sleeve / Insulator Valve With Metal Parts
Ceramic shaft and bush are featured by insulation, antimagnetic, static electricity-free, lubricity and resistant to high temperature, high pressure,chemical attack and oxidation. It is extremely popular in many areas, such as computer, telecommunication, power supply, transducer, instrumentation, industrial equipment, electric appliance and electric motor. And a lot of practical applications prove that our ceramic bearing has reached a state of high standard and quality.
Product Name | Refractory Zirconia Ceramic Piston Sleeve / Insulator Valve With Metal Parts |
Material | Zirconia ceramic |
OD | 0.3mm -50mm |
Length | 0.5mm - 500mm |
Surface Roughness | Ra0.05 |
Torlerance | +/- 0.001mm |
Lead time | 10 - 30days |
Shipping | Air Express (DHL/UPS/TNT/ FedEx) |
Properties Sheet of zirconia and alumina :
| Properties | Unit | Alumina | Zirconia | ||||
| 96%Al2O3 | 99%Al2O3 | 99.5%Al2O3 | 99.8%Al2O3 | 99.9%Al2O3 | 3Y-TZP | ||
| Colour | - | White | White | Ivory | Ivory | Translucent | white/black |
| Bulk density | g/cc | 3.78 | 3.88 | 3.93 | 3.93 | 3.98 | 6.03 |
| Water Absorption | % | 0 | 0 | 0 | 0 | 0 | 0 |
| Grain size | μm | 5-10 | 2-5 | 2-5 | 2-5 | 2-4 | 0.4 |
| Bending strength | MPa | 380 | 350 | 360 | 380 | 300 | 1000 |
| KIC | MPa.m1/2 | 3~4 | 4 | 3~4 | 3~4 | 3~4 | 5~8 |
| Vickers Hardness | GPa | 13 | 14 | 14.5 | 14.5 | 15 | 13 |
| Young's Modulus of Elasticity | GPa | 360 | 370 | 370 | 380 | 390 | 200 |
| Thermal Conductivity | W/m° K | 24 | 28 | 32 | 32 | 34 | 2 |
| Coefficient of Linear Expansion | 10-6/°C | 6.7 | 7.2 | 7.2 | 7.2 | 7.2 | 10.5 |
| Dielectric Constant (1MHz) | - | 9.1 | 9.5 | 9.6 | 9.6 | 9.9 | 33 |
| Dielectric Loss Angle (1MHz) | - | 0.0002 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.002 |
| Dielectric Strength | V/m | 15×106 | 15×106 | 15×106 | 15×106 | 15×106 | 11×106 |
| Volume Resistivity | Ohm.cm | >1014 | >1014 | >1014 | >1014 | >1014 | 1013 |
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Packaging & Delivery
| Packaging Details: | 1. Carton with Bubble bag or foam. 2. Wooden carton 3. As per customer's requirements. |
| Delivery Details: | 1. 3-25 days for sample 2. 25-40 days for mass products. |
| Shipment Terms: | 1. Small order: By express, DHL/ UPS/ Fedex/ EMS etc. 2. Large order: By sea or By air |
A: We are factory.
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below:
