Alumina Corundum Tube Square
- YUNXING
- China Jinzhou
- 5-30 Days
- 5,000-10,000/month(Looking for distributors)
Alumina ceramic tube has a wide range of applications:
A. Involving coal detection and analysis equipment, metallurgical powder detection and analysis equipment.
B. Testing and analysis equipment for the chemical and glass industries.
C. High temperature detection and analysis equipment in various industries.
Alumina Corundum Tube Square
My factory looking for distributors.
In many industrial settings, electrical insulation is of paramount importance to ensure the safety of personnel and equipment. The Alumina Industrial Ceramic Tube offers excellent electrical insulation properties, creating a barrier against electric current. This characteristic is crucial in applications that involve high voltage or sensitive electrical components. With this ceramic tube, you can trust that your equipment and workers are well-protected.
Another advantage of the Alumina Industrial Ceramic Tube is its high density and rigidity. These qualities make it an excellent choice for industrial situations that require structural stability and resistance to deformation. Whether it's thermal cycling or heavy mechanical stress, this ceramic tube can withstand it all. By choosing this product, you are investing in a reliable solution that will consistently perform under the most demanding
Tube size: 30*40*400mm
Properties of alumina corundum tube
Alumina corundum tube has high density, which greatly reduces secondary oxidation of molten steel during pouring and reduces inclusion entering the casting model.
High fire resistance (> 1680*C), erosion resistance, smooth surface of runner after pouring, and no corrosion during pouring. Good chemical stability, no chemical reaction with molten metal (molten iron or molten steel) of castings at high temperature.
High thermal strength and good thermoplasticity can effectively prevent sand washing and sand inclusion and reduce sand hole defects of castings.
The coefficient of thermal expansion is low and has little influence on the shrinkage of the casting. The tensile cracking phenomenon caused by the pouring system is reduced.
The surface is fine and smooth, the runner resistance is small and the flow velocity is fast. The invention can effectively reduce the thermal cracking caused by thermal stress generated in the casting due to various resistances of the casting by the gating system, the casting mold, the sand core and the casting structure.
Recommended products
Ceramic tray：
Corrosion resistance, high fire resistance and good chemical stability. Used in laboratory extraction, burning, mineral, chemical and other industries.
Ceramic rods：
With high density&refractoriness,good corrosion resistence,mechanical capacity etc properties,ceramic rods are widely used in chemical fiber,textile and chemical etc 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 |
Main products
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.
Certificate
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.
