96%&99% Alumina ceramic rod /roller with wear resistance
99% Al2O3 Ceramic Substrate For Electronic Parts
2.Extremely abrasive resistance performance
4.Wide scope of application
Alumina ceramic is Al2O3 as main raw material, in the rare metal oxide as flux, special ceramic piece after one thousand degrees high temperature roasting into.
Al2O3 ceramic alumina content is high, the structure is relatively compact, with special properties, it is known as the special ceramics. The Al2O3. ceramic materials are densely arranged six party structure for oxygen ion and aluminum ion, filled in 2/3 with eight sides in the gap, which is the same with natural corundum stable alpha Al2O3 structure, so the ceramics with high melting point, high hardness, good wear - resistance.
|Test Item/Unit||Numerical Value||Test Item/Unit||Numerical Value|
|Product Material||Alumina||Zirconia||Product Material||Alumina||Zirconia|
|Component Content %||≥99%||≥95%||≥90%||Volume Resistance cm||>1012||>1012||>1012|
|Sintering Temp ºC||1780-1800||1650-1680||1550-2600||Bending Strength Mpa||400||320||1100|
|Specific Gravity g/cm3||≥3.8||≥3.6||>6||Thermal Expansion Coefficient *10°||6.8-8||6.2-8.5||6.9-10|
|Breakdown Voltage Strength kv/mm||15||15||15||Roughness μm||≤0.8||≤0.8||≤0.8|
|Bibulous Rate %||<0.01||<0.01||<0.01||Mirror Polished Ra||≤0.05||≤0.1||≤0.05|
|Anti Pressure Mpa||3700||2400||5000||Thermal Conductivity W/m-k||25||20||2.5|
|Hardness Hra||≥88||≥82||≥88||Temperature Resistance ºC||1700||1600||1800|
Physical properties: high insulation resistance, breakdown, high temperature resistance, abrasion resistance, high strength (three meters altitude fall not broken).
Fire rating: USA military standard MIL-F-51058 (the highest level).
Typical application: strong current, voltage, strong high temperature parts, IC MOS, IGBT power tube heat pipe insulation.
Thermal conductivity: high temperature: 1600~1700 degrees below the ideal heat insulating material of high voltage and high frequency equipment .
Alumina ceramic is mainly used in large power equipment, IC MOS tube, IGBT chip heat conducting insulation, high frequency power supply, communication, mechanical equipment, strong current, high voltage, high temperature and other thermal heat insulation parts need products.
Physical properties: high thermal conductivity, high voltage insulation resistance, high temperature resistant, abrasion resistant, high strength.
Regular size and models :
The TO-220, 1mm*13mm*19mm
The TO-3 P, 1mm*20mm*25mm
The TO-264, 1mm*22mm*28mm
The T0-247, 0.635mm*17mm*22mm
Other non-standard products can provide drawings of custom processing
Shenzhen City Jia Rifeng Tai Electronic Technology Co., Ltd. Was founded in 2010, a total investment of more than 1000000 RMB. Jia RiFeng Tai is a professional committed to the domestic and foreign electronic thermal insulation materials of high-tech enterprises.
Our Main Products: Thermal conductive filler material, like thermal gap pad, insulator silicone sheet, insulator silicone sleeve, ACF conductive film, thermal silicone heating, thermal double-sided tape, thermal graphite, thermal silicone encapsulants, thermal grease / paste, alumina ceramic, Aln ceramic, zirconia ceramic, Sic ceramic, NFC Ferrite sheet, EMI absorber sheet, thermal phase change material, silicone rubber (Fujipoly), Bergquist thermal conductive material K4, K6, K10 insulation gap pad.
Products are widely used in power supply, LED lighting, electric welding machine, notebook computer, LED decorative lighting, set-top box, high power supply and other industries. At present, the company has passed ISO 9001 certifications.
High quality, good price, delivery on time and sincere service are our value and promises to our customer. As an enterprise, we are confident enough to present competitive products to severe competition.
1.We make and export high quality.
2.We provide the most favorable and most competitive prices for you.
3.We will supply with all information to u ,about package, weight,and so on.
4.We can customize the products for you, such as the size, shape, color and so on
5.We provide the best after-sales service and try our best to solve problems for our customers.
We can make many specifications according to your request !
For more information , please feel free to contact to me.