Dongguan Ming Rui Ceramic Technology Co.,ltd
Dongguan Ming Rui Ceramic Technology Co., Ltd
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Smooth Polished Small Zirconia Ceramic Pins with High Density Durable
| Product Name | Smooth Polished Small Zirconia Ceramic Pins l with High Density Durable |
| Material | Alumina, zirconia or silicon carbide , silicon nitride |
| Color | White, Black |
| 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 - 30days |
| Max. working temperature | 1500 -1700 °C |
| Samples | Avaliable |
| Shipping: | Air Express (DHL/UPS/TNT/ FedEx) or Ocean Shipping |
Metal simply can’t compete with advanced ceramics with regard to insulating properties, resistance to temperature change, and minimal wear and tear due to the high degree of hardness and durability. Yet another advantage of using ceramics for centering pins is their smooth polished surface, which prevents welding spatter from adhering. However, service life does face limitations when it comes to welding pins made of commonly used zirconium oxide ceramics. Over time, this material is likewise unable to stand up to the 30 to 40 kiloamperes that flow through the copper electrodes in projection welding and the required working temperature of 800°C, and thus suffers from wear. The solution: Centering standard molds made from silicon nitride ceramics
Worth knowing:
Ceramic adapter plate,Ceramic centering pin,Ceramic connectors,Ceramic spinner,Ceramic roller
Ceramic blade,Ceramic brackets,Ceramic disc,Ceramic insulator,Ceramic rod,ceramic atomizer
ceramic fuse pin,ceramic nozzle,ceramic ferrule,ceramic necklace,ceramic ornament,alumina ceramic plate, ceramic cylinder, ceramic guide, ceramic pin, ceramic bushing, ceramic brick,ceramic injection molding,ceramic bushings,ceramic smoking pipe, ceramic spacer,ceramic piston pump,ceramic part
ceramic heating element vaporizer e cigarette, al2o3 ceramic, ceramic donut atomizer, alumina ceramic disc, alumina ceramic sheet , ceramic alumina , ceramic pressure sensor , ceramic sheet,
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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 |
