Aluminium oxide Crucible
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Advantage of Aluminium oxide crucible
1. Aluminium oxide crucible is also called corundum crucible.
2. Aluminium oxide crucible shape is mainly cylindrical, conical, square, etc.
3. Aluminium oxide crucible has good chemical resistance and temperature resistance, and can be used for a long time. At 1650°C, it can also be used at temperatures up to 1800°C. But only for short-term use.
4. The aluminium oxide crucible has good resistance to rapid heat and cooling and is not easy to burst.
5. The aluminium oxide crucible is formed by slip casting, the density is high.
6. Aluminium oxide Crucible has good high temperature insulation and mechanical strength in oxidizing and reducing atmosphere.
Application of Aluminium oxide crucible
1. Aluminium oxide crucible can be used in various laboratory metal and non-metal sample analysis and melting materials.
2. Aluminium oxide crucible can be used in shuttle kilns and push plate kilns to burn color materials, colorants, frit, pigments, luminescent materials, etc.
3. Small experimental kiln, experimental electric furnace adjustment formula and other purposes.
4. Melting metals, precious metals, optical glass, analysis and firing of mineral raw materials such as rare earths.
5. firing of high-temperature products such as ceramic powder.
Composition table
| NAME | CONTENT(%) |
| Al2O3 | 99.3-99.5(99.7) |
| SiO2 | 0.3-0.5 |
| CaO+MgO | 0.2-0.3 |
| K2O+Na2O | 0.2-0.35 |
| Fe2O3 | <0.1 |
| OTHER | <0.05 |
Alumina ceramic performance index (Notice of Correct in Leakeage Rate）
NO. | Property | Unit | Alumina |
1 | Al2O3 | % | >99.3 |
2 | SiO2 | % | - |
3 | Density | g/cm3 | 3.88 |
4 | Water absorption | % | 0.01 |
5 | Cold compressive strength | MPa | 350 |
6 | 20ºC leakage rates | Torr・L/sec | >10-11=1.33322×10-12Pa・m3/sec |
7 | Twisting in high temperature | mm | 0.2 allowed in 1600ºC |
8 | Bonding in high temperature | not bonded in 1600ºC | |
9 | 20-1000ºC coefficient ofthermalexpansion | mm.10-6/ºC.m | 8.2 |
10 | Thermal conductivity | W/m.k | 25 |
11 | Electric insulation strength | KV/mm | 20 |
12 | 20ºCdirect current insulation resistance | Ohm/cm | 1014 |
13 | High-temperature insulation resistance | 1000ºC MΩ | ≥0.08 |
1300ºC MΩ | ≥0.02 | ||
14 | Thermal shock resistance | 4 times not cracked in 1550ºC | |
15 | Maximum working temperature | ºC | 1800 |
Our factory
Jinzhou Yunxing Industrial Ceramics Co., Ltd. was established in 2000, mainly producing various types of tubular ceramic products and various industrial parts with alumina content above 99.3%. The factory covers an area of 4000 square meters.
The company's main products are: alumina ceramic tubes, alumina ceramic crucibles, alumina ceramic rods, alumina ceramic boats, alumina ceramic plates, alumina ceramic parts, etc.
The company currently has 3 1800 ° C high-temperature furnaces and 2 1400 ° C low-temperature kilns independently designed and manufactured. The molding process is mainly based on grouting molding, and has other molding process equipment such as extrusion and hot die casting.
The company has 105 employees, including one senior ceramic engineer, three engineers, six overseas sales staff, and four professional after-sales staff.
FAQ
Q1.What is the temperature of Aluminium oxide crucible?
A1: The maximum working temperature of aluminium oxide crucible can be up to 1800℃. Provides high-quality Al2O3 crucibles with good electrical insulation, excellent corrosion resistance, and excellent thermal shock properties.
Q2.Can you reuse aluminium oxide crucible?
A2: Successful emptying allows for reuse of the aluminium oxide crucible for the growth of a different compound.
Q3.What is aluminium oxide crucible used for?
A3: Used as a material for industrial furnaces due to its ability to maintain its hardness at high temperatures. Used as a protector for high-temperature thermal couples. Used as a material for the chemical industry due to its high corrosion resistance.
Certificates
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