Active Member
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[China]
Address: 214200, QIANLUO,DINGSHU,YIXING,JIANGSU,CHINA
Contact name:Amy
Yixing Shengchen Refractory Products Co., Ltd |
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Alumina Ceramic:
Alumina ceramics are ceramic materials based on alumina (Al2O3) for thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics is a versatile ceramic. Because of its superior performance, it has been widely used in modern society, satisfying the needs of daily use and special performance.
| Alumina ceramic is kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products. We can make the part by hot injection pressing, dry pressing, 200T isostatic pressing and extrusion productive technology etc. | ||||
| 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 | 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 | |||
1). High hardness and High density
2). Low thermal conductivity
3). Chemical inertness
4). Good Wear resistance
5). High fracture toughness
6). Good insulation performance
7). high temperature resistance
1). 95% alumina or steatite ceramic.heat compression molding,the alumina has been to improved insulation and mechanical strength.
2). The ceramics have no cracks,no burrs,no pinholes,no gaps,and no impurities, surface is smooth, dye absorption is passed.
3). Linear dimension tolerance ≤ ± 0.05mm, diameter tolerance ≤ ± 0.1mm, hole size distortion ≤ 0.05mm, circumference deformation size ≤ 0.1mm.
4). Insulation Resistance ≥ 100MΩ (have been checked by megohm in DC500V).
5). Dielectric Strength: AC2000V/50HZ/1min no breakdown phenomenon.
6). Linear expansion coefficient is slight,and less than 7.0 × 10-6mm /°C, and good for thermal shock performance.
7). Sintering temperature is 1350 °C, the use of a temperature not lower than 1100 °C, good corrosion resistance.
1. Can you accept OEM & ODM?
Yes, we can produce the products according to your demand and
drawing.
2. Can you provide free samples?
Yes, we can provide the sample for free, but the freight and mold
fee are on your side.
3. What’s the lead-time for samples?
Within 15 days for bulk order, 10-15 days for OEM designs and
shapes.
4. What’s your production Lead-time for bulk order?
Generally it takes 20-30 days and 25-35 days in peak season.
5. What are your payment terms?
In generally, we quote FOB Shanghai price or CIF price
