Advance Technical High Purity Heat Resistant Alumina Ceramic Tube
Description:
Alumina ceramic has the advantages of super hardness, high
wear-resisting,good corrosion resistance and electric
insulation,resistant acid-base,high intensity,thermostable,high
temperature tolerance,good insulation,high strength,precision
process,high mechanical strength,good chemical stability.
Alumina Oxide Ceramic Tube is suitable for all kinds of laboratory
metal and nonmetal sample analysis and melting materials. Corundum
tube is mainly used in high temperature vacuum tube furnace, vacuum
furnace atmosphere, tin groove tube float glass industry, solar
glass in protecting tube, electric stove wire supporting tube,
aluminum trichloride industry chlorine pipe, muffle furnace tube,
etc.
Technical Parameters:
| Test item/Unit | Numerical Value | Test item/Unit | Numerical |
| Product Material | Alumina | Zirconia | Product Material | Alumina | Zirconia |
| Component Content % | ≥99% | ≥95% | ≥90% | Volume Resistance MM | >1012 | >1012 | >1012 |
|
| Sintering Temp ℃ | 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' | 6.8-8.0 | 6.2-8.5 | 6.9-10 |
|
Breakdown Voltage
Strength kv/mm | 15 | 15 | 15 | Roughness um | ≤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 | 3700Mpa | 2400Mpa | 5000Mpa | Thermal Conductivity W/m.k | 25 | 20 | 25 |
|
| Hardness Hra | ≥88 | ≥82 | ≥88 | Temperature Resistance ℃ | 1700 | 1600 | 1800 |
Advantages:
1. High hardness, high strength
2. Wear resistance, corrosion resistance, oxidation resistance
3. Excellent dielectric properties
4. Strong acid and alkali resistance at elevated temperatures
5. Good chemical stability, nonmagnetic
6. Excellent size and shape capability
Application:
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.
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