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Ceramic switch cover plates with wear / high temperature resistant insulation alumina zirconia plates customized
Materials：Alumina (Al2O3)/ Zirconia(ZrO2) /Si3N4 /SiC ...etc
Sizes：Max Length/width:450mmThickness:0.2mm...
Delivery times：2 -25 days(depends on the quantity)
Precision：Ra 0.1um tolerance: 0.001mm... etc
Features：Heat resistance / Wear resistance / High purity / Refractory / High Corrosion / Good Insulation
Customized：Can be custom for special sizes and shapes
Ceramic plates sheet substrate disc series
Ceramic Switch Cover Plates With Wear / High Temperature Resistant Insulation Alumina Zirconia Plates Customized
Voltage and Insulator
ceramic switch cover plates have small dielectric constant, low dielectric loss, high mechanical strength, high dielectric strength, insulation resistance and thermal conductivity.Dielectric constant up to 10; Electrical resistivity up to 10∧14 Ohm.cm at 20°C ;Dielectric strength up to 20 kV/mm...
As a ceramic parts manufacture, we product full sizes of the switch wall cover plates with advance ceramics which have a excellent wear resistant, high temperature resistant and insulation property.
The feature of ceramic switch cover plates
· Flexural strength · Chemical resistance
· Wear resistance · Temperature resistance
· Electrical insulation · Corrosion resistance
· Thermal conductivity · High voltage
· Dielectric strength · Hardness
Additional Information
·Discounts on large quantities of Ceramic plates
·In stock items will typically ship in a few working days.
·Unit price and estimated ship dates will be calculated when quantity are specified.
Special shapes and inner holes can be customized and OEM
High heat and temperature resistant
Ceramic switch cover plates have a excellent high heat temperature resistant ability. ceramic cover plates can be used under 2200 ℃ high temperature environment.Coefficient of thermal expansion up to 13* 10∧6 from 20°C -1000°C. up to 2800°C Melting point.
Wear and hardness resistant
Ceramic switch cover plates is better wear and abrasion resistant property than metal. The ceramic hardness (mohs)up to 9, HRA 80 - 90. ceramic plates hardness is not second only to diamond, but far beyond the wear resistance of steel and stainless steel.
Part of us oem ceramic cover plates:
Special shapes and inner holes can be customized and OEM
Ceramic materials
· 95%--99.99% Alumina (Al2O3)
· Silicon Carbide
· Silicon Nitride
· TTZ: Magnesia partially stabilized Zirconia (ZrO2)
· YTZP: Yttria partially stabilized Zirconia (ZrO2)
· ZDY: Yttria fully stabilized Zirconia (ZrO2)...
| Al2O3 | ZrO2/Y2O3 | ZrO2/MgO | MgO | SiC | Si3N4 Reaction sintered | Si3N4 Hot pressed | ALN | |
| Physical properties | ||||||||
| Density (g/cm³) | 3,9 | 5,9 | 5,75 | 3,58 | 3,2 | 3,27 | 3,29 | 3,26 |
| Molecular weight (g/mole) | 102 | - | - | 40,4 | 40,1 | 140 | 140 | 41 |
| Maximum service temperature air (°C) | 1700- 1800 | 1500 | 1000 | 2200 | 1500 | 1200- 1500 | 1100- 1600 | 1000- 1800 |
| Mechanical properties | ||||||||
| Hardness (Mohs) | 9 | - | - | 5,5 | 9 | - | - | 7 |
| Modulus of elasticity (GPa) | 300-400 | 200 | 200 | 250-300 | 420 | 170-220 | 280-310 | 318 |
| Poisson's ratio | 0,25 | - | - | 0,18 | 0,14 | 0,25-0,26 | 0,27 | 0,25 |
| Fracture toughness (MPa.m1/2) | 2-3 | 7-13 | 6-10 | - | 2,5-3,5 | 3,5-5 | 6,1 | 4,5 |
| Electrical properties | ||||||||
| Dielectric constant | 9-10 | - | - | 9-10 | - | 10 | 10 | 9,2 |
| Electrical resistivity at 20°C (Ohm.cm) | >1014 | 1013-1014 | >1010 | - | 102-106 | >107 | 1012- 1015 | >1014 |
| Dielectric strength (kV/mm) | 10-20 | 9 | 2-10 | - | - | - | - | 15 |
| Thermal properties | ||||||||
| Specific heat (J/K/kg) | 900 | 400-500 | 420 | 870-880 | 750 | 690 | 680-800 | 800 |
| Thermal conductivity (W/m/K) at 20°C | 26-35 | 2,2-3,2 | 1,5-2,5 | 40-50 | 63-155 | 9-30 | 15-43 | 180 |
| Coefficient of thermal expansion ( 10-6) from 20 to 1000°C | 8-9 | 10-11 | 5-16 | 10-13 | 4-5 | 3 | 3,3 | 4,4-5,3 |
| Melting point (°C) | 2050 | 2590 | - | 2800 | 2500 | 1900 | 1900 | 2200 |
| Precision of manufacture | |
| Dimensional accuracy | Up to 0.001mm |
| Smoothness | Highest possible mirror |
| 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 |
| Visual quality: 1. No cracks, no dark dots, no contamination and sharp edges; 2. Evenly distributed glaze with very smooth surface | |
Customization & Machining Service
As a professional manufacturer of industrial ceramic components.We can custom the sepcial specifications of ceramic cover, ceramic button, ceramic panels, walls plates or other ceramic parts.High quality,Factory price, on-time delivery, High composition of ceramics.
FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-10 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
Feedback
1. For any query or doubt, please contact us firstly, we will update with you soon;
2. For any other satisfaction, please also feedback to us, which could improve our service better and better.
For more information about ceramics parts,please contact our engineers in time >>>
