Alumina ceramic crucible for melting metal in laboratory
- YUNXING
- China Jinzhou
- 5-30 Days
- 3,000-5,000/month(Looking for distributors)
A. Alumina crucibles have a high melting point and corrosion resistance. With a melting point of 2050°C, it can resist the erosion of molten metals such as Be, Sr, Ni, Al, V, Ta, Mn, Fe, and Co.
B. It also has high resistance to the erosion of NaOH, glass and slag.
C. It does not interact with Si, P, Sb, Bi in an inert atmosphere.
Alumina Ceramic Melting Metal Crucible
My factory looking for distributors.
Alumina crucible has a high melting point and corrosion resistance. It has a melting point of 2050°C and can resist the erosion of molten metals such as Be, Sr, Ni, Al, V, Ta, Mn, Fe and Co. It also has high resistance to erosion by NaOH, glass and slag. Does not interact with Si, P, Sb, Bi in an inert atmosphere.
Alumina crucible have excellent chemical stability, and many composite sulfides, phosphides, arsenides, chlorides, nitrides, bromides, iodides, oxides and sulfuric acid, hydrochloric acid, nitric acid, and hydrofluoric acid do not interact with alumina.
Recommended products
Protective tube:
For thermocouple External protection tube.insulation,High temperature resistance,
Good air tightness
Ceramic tray：
Corrosion resistance, high fire resistance and good chemical stability.
Used in laboratory extraction, burning, mineral, chemical and other industries.
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 | Compressive strength | MPa | 2300 |
6 | 20℃ leakage rates | Torr・L/sec | >10-11=1.33322×10-12Pa・m3/sec |
7 | Twisting in high temperature | mm | 0.2 allowed in 1600℃ |
8 | Bonding in high temperature | not bonded in 1600℃ | |
9 | 20—1000℃ coefficient of thermal expansion | mm.10-6／℃.m | 8.2 |
10 | Thermal conductivity | W/m.k | 25 |
11 | Electric insulation strength | KV/mm | 20 |
12 | 20℃direct current insulation resistance | Ohm/cm | 1014 |
13 | High-temperature insulation resistance | 1000℃ MΩ | ≥0.08 |
1300℃ MΩ | ≥0.02 | ||
14 | Thermal shock resistance | 4 times not cracked in 1550℃ | |
15 | Maximum working temperature | ℃ | 1800 |
16 | Hardness | Mohs | 9 |
17 | Flexural strength | Mpa | 350 |
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 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.Why alumina crucible is used?
Alumina Crucible Applications
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.
2.What is the use of ceramic crucible?
Everything You Need to Know About Ceramic Crucible
Ceramic crucibles are crucial pieces of chemical equipment used for melting down materials, an effective way to reuse scrap items. Ceramic crucibles make it easier to recycle metallic materials because they can easily be cast into new objects or combined into new alloys.
3.What is an alumina crucible made of?
99.7% Al2O3 Crucibles
Sintered alumina curcibles ideal for very high temperature applications up to 1700°C. It is resistant to chemical attacks from most acids and alkaline solutions as well as hydrogen and other reducing gases, with the exception of : High concentration hydrofluoric acid.
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