Mirror Polished High Precision Alumina Oxide Ceramic Tube
Description:
Aluminum oxide (Alumina) has an extensive application due to its
versatility and low cost of material than other advanced ceramics.
Alumina offers high electrical insulation resistance,
high-temperature resistance, strong hardness, wear resistance, and
good chemical stability, making it a good material to withstand
high temperature and chemical corrosion.
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. 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.
Application:
Mainly used in thermalcouple temperature, liquid steel continous
temperature, various industrial furnace of alumina ceramic tube.
Especially widely used in petrochemical, spinning, electric,
instrumentation, mechanical workout, military project etc industry
of alumina ceramic tube.
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Packaging:
