Dongguan Ming Rui Ceramic Technology Co.,ltd
Dongguan Ming Rui Ceramic Technology Co., Ltd
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Machinable Alumina Zirconia Ceramic Guide / Support Rods Insulating
Used on project that requires sleeving a Alumina ceramic rod which is 3mm in diamter with high temperature electrically insulating 95% 97% 99.5% or 99.7% ceramic
The central electrode needs to be electrically insulated from the outer sleeve, Which means that the ceramic tube has to be electrically insulated and has ZERO porosity while operation at high temperatures (800 DegC max)
| Product Name | Machinable Alumina Zirconia Ceramic Guide / Support Rods Insulating |
| Material | Alumina, Zirconia, Silicon Nitride |
| Color | White, Black and Yellow |
| OD | 0.2mm - 50mm, And According to drawings |
| Length | 5mm - 400mm, And According to drawings |
| Surface Roughness | Ra0.05 |
| Torlerance | +/- 0.001mm |
| Lead time: | 15 days |
| Max. working temperature | 1500 -1700 °C |
| Samples | Avaliable |
| Shipping: | Air Express (DHL/UPS/TNT/ FedEx) or Ocean Shipping |
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ceramic washer, zirconia ceramic plate, ceramic insert, white ceramic ring, ceramic shaft
ceramic pump, ceramic piston, ceramic nail, ceramic insulators, ceramic rod 3mm , ceramic dowel pin
ceramic pin gage , alumina ceramic parts , ceramic burr , ceramic proppant , ceramic needle
ceramic grinder, alumina ceramic rod , alumina ceramic ring, ceramic conical burr , ceramic heater rod
ceramic gear , machinable ceramic, ceramic arms , white ceramic ornaments , sustained high temperature on ceramics
Mingrui offers you a wide range of production facilities like extrusion, injection moulding, pressing and casting. Depending on product geometry and quantities, we will choose the suitable technique for your products.For the final finishing of the parts we use CNC machining centres, equipped with diamond tools in order to meet high accuracies.
Our aim is to offer the ideal solution for any application. Our engineers therefore offer custom solutions that range beyond our existing product portfolio. With our well-equipped industrial development facilities, we produce innovations that can be rapidly commercially exploited.
Properties Sheet of zirconia and alumina :
| Properties | Units | 95 Alumina | 99 Alumina | ZrO2 |
| Density | g / cm³ | 3.65 | 3.92 | 5.95-6.0g/cm³ |
| Water absorption | % | 0 | 0 | 0 |
| Coefficient of thermal expansion | 10-6/K | 7.9 | 8.5 | 10.5 |
| Modulus of Elasticity Young's Mod | GPa | 280 | 340 | 210 |
| Poisson's ratio | / | 0.21 | 0.22 | 0.3 |
| HV Hardness HV | MPa | 1400 | 1650 | 1300-1365 |
| Flexural Strength @ room temperature | MPa | 280 | 310 | 950 |
| Flexural Strength @700°C | MPa | 220 | 230 | 210 |
| Compressive Strength @ room temperature | MPa | 2000 | 2200 | 2000 |
| Fracture Toughness | MPa *m 1/2 | 3.8 | 4.2 | 10 |
| Heat conductivity @ room temperature | W/ m*k | 18-25 | 26-30 | 2-2.2 |
| Electrical Resistivity @ room temperature | Ω*mm2 /m | >1015 | >1016 | >1015 |
| Max use temperature | °C | 1500 | 1750 | 1050 |
| Resistance to acid alkaline | / | high | high | high |
| Dielectric Constant | / | 9.5 | 9.8 | 26 |
| Dielectric Strength | KV/mm | 16 | 22 | / |
| Thermol Shock Resistance | △ T ( °C ) | 220 | 180-200 | 280-350 |
| Tensile Strength @ 25 °C | MPa | 200 | 248 | 252 |
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: