China High Strength Textile Machinery Alumina Ceramic Eyelets, Find details about China Ceramic Eyelet, Alumina Ceramic Eyelet from High Strength Textile Machinery Alumina Ceramic Eyelets
Product Description
Alumina ceramic is the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance,but relatively low strength and fracture toughness.Alumina ceramics are generally white but may also be pink or ivory.The color is derived from either the sintering additives or impurities in the raw materials.
1). Excellent insulation, security, long working life.
2). High temperature resistance
3). Resistance to electric breakdown
4). Stand wear and tear
5). High strength
6). Corrosion resistance
7). Good compactness
8). HIgh hardness
Material | Unit | Steatite ceramics | 95% alumina ceramics | 99.5% alumina ceramics |
Density | G/cm3 | 2.7 | 3.65 | 3.85 |
Highest application temperature | °C | 1100 | 1500 | 1800 |
Bending strength | Mpa | 150 | 300 | 340 |
Compressive strength | Mpa | 900 | 3400 | 3600 |
Hardness | HV0.5 | 800 | 1800 | 2000 |
Insulation breakdown strength | KV/mm | 10 | 15 | 18 |
Processing technology | ||||
Process range (mm) | ||||
Outside Diameter | 1---300 | |||
Inside Diameter | 0.5---300 | |||
Length | 0.5---1200 | |||
Accuracy of working (mm) | ||||
Perpendicularity | 0.01 | |||
Concentricity | 0.01 | |||
Roundness | 0.005 | |||
Straightness | 0.005 | |||
Parallelism | 0.01 | |||
Planeness | 0.005 | |||
Roughness | 0.05 | |||
Fit clearance | 0.005 |