Aluminium Oxide Crucible
- YUNXUNG
- China
- It depends on the quantity of the order
- 2000-5000/month(Looking for distributors)
A. More than 99% of AL2O3 materials are used to make high-temperature crucibles.
B. It has good chemical resistance and temperature resistance, and can be used for a long time at a temperature of 1650°C.
C. It can also be used at temperatures up to 1800°C. But only for short-term use.
Aluminium oxide Crucible
My factory looking for distributors.
Alumina crucible is also called corundum crucible. The shape is mainly cylindrical, conical, square, etc. The alumina crucible has high purity and contains more than 99% AL2O3. 99% alumina material is used to make high-temperature crucibles. It 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.
The alumina crucible has good resistance to rapid heat and cooling and is not easy to burst. Because the alumina crucible is formed by grouting, the density is high. Corundum crucible has good high temperature insulation and mechanical strength in oxidizing and reducing atmosphere, high thermal conductivity, low thermal expansion rate, and does not react with air, hydrogen, water vapor, carbon monoxide, etc. above 1700℃.
Alumina crucible has a wide range of uses. It can be used in various laboratory metal and non-metal sample analysis and melting materials. It can also be used in shuttle kilns and push plate kilns to burn color materials, colorants, frit, pigments, luminescent materials, etc. . Small experimental kiln, experimental electric furnace adjustment formula and other purposes. Melting metals, precious metals, optical glass, analysis and firing of mineral raw materials such as rare earths, and 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.
RFQ
1.What is the temperature of Al2O3 crucible?
The maximum working temperature of alumina crucibles can be up to 1800℃. Provides high-quality Al2O3 crucibles with good electrical insulation, excellent corrosion resistance, and excellent thermal shock properties.
2.Can you reuse crucibles?
Successful emptying allows for reuse of the crucible for the growth of a different compound.
3.What is alumina crucible used for?
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.
Feedback
1. If you have any questions or questions, please contact us and we will communicate with you as soon as possible.
2. For any other satisfaction, please also feedback to us to make our service better and better.
