Alumina Corundum Square Tube
My factory looking for distributors
Advantages of Alumina Corundum Square Tube
1.Alumina Corundum Square Tube have a high density, greatly reducing the secondary oxidation of molten steel during the pouring process and reducing the entry of inclusions into the casting model.
2. Alumina Corundum Square Tube has high fire resistance (>1680 * C), corrosion resistance.
3.Good chemical stability, no chemical reaction with the molten metal (iron or steel) of the casting at high temperatures.
4.High thermal strength and good thermoplastic properties can effectively prevent sand flushing and sand inclusion in castings, reducing sand hole defects in castings.
5.The thermal expansion coefficient of Alumina Corundum Square Tube is low and has almost no effect on the shrinkage of the casting.
6.The surface of Alumina Corundum Square Tube is delicate and smooth.
Application of Alumina Corundum Square Tube
1. Metallurgical industry: In the metallurgical industry, Alumina Corundum Square Tube play a crucial role in high demand applications such as molten metal treatment and high-temperature furnace lining.
2. Chemical processing: Our Alumina Corundum Square Tube have been proven to be an ideal choice for applications involving corrosive chemicals, acids, and other hazardous substances.
3. Energy and power generation: Whether used in power plants, furnaces, or thermocouple protection tubes, our Alumina Corundum Square Tube can maximize energy efficiency and ensure reliable performance.
4. Semiconductors and Electronics: Our Alumina Corundum Square Tube have excellent electrical insulation performance and high density, making them an ideal choice for components, ensuring efficient signal transmission, heat dissipation, and electrical interference prevention.
We only make high purity alumina ceramics
1. High-purity alumina content 99.3% -99.5%, other alumina ceramics 92% -99%.
2. The color of high purity alumina product is milky white, and other products are pink or white. The higher the purity, the more transparent the color.
3. Alumina is a refractory material, the higher the purity, the better the refractory effect.
4. After high-purity alumina ceramics are fired and cooled in a 1800-degree high-temperature kiln, the products are not easy to break when they encounter high temperatures. Other ceramics are fired at 1500 ℃ ~ 1800 ℃.
5. The volume density of high-purity alumina> 3.92 g / cm3 has a smooth surface and is not easily corroded by chemicals. The bulk density of other ceramics is> 3.70 g / cm3 ~> 3.85 g / cm3.
6. High purity alumina has good hardness and good wear resistance.
7. High purity alumina products have a longer service life.
Size,Performance index
Alumina Tube(open both ends)(slip casting) Specification Table:
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'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. Material: Alumina ceramic
Q2. Payment Term: PayPal; T/T;
Q3. Shipment: by sea, by air, by courier, by post, etc.
Q4. Can alumina ceramic furnace tubes be reused after use?
Yes, alumina ceramic furnace tubes can be reused after use, provided they are undamaged and free from contamination. Proper cleaning and inspection are necessary to ensure their suitability for subsequent applications.
Q5. Can alumina ceramic furnace tubes withstand rapid temperature changes?
Alumina ceramic furnace tubes exhibit good thermal shock resistance, allowing them to withstand rapid temperature changes without cracking or breaking. However, it's essential to choose a tube with suitable thermal shock resistance for specific application requirements.
Q6. How long do alumina ceramic furnace tubes typically last?
The lifespan of alumina ceramic furnace tubes can vary depending on factors such as application conditions, operating temperatures, and maintenance practices. With proper care and usage, these tubes can last several years, providing reliable performance.
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.
