Extruded Alumina Ceramic Tubes/Pipes
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Advantages of alumina ceramic tubes/pipes
1. Alumina ceramic tube is a ceramic material mainly composed of aluminum oxide (Al2O3).
2. The surface of alumina ceramic tube is flame retardant and has good fire resistance, which will not affect their working performance at a high temperature of 1200 degrees.
3. The strong corrosion resistance on the surface of alumina ceramic tubes makes it easy to clean with a washing solution.
4. The alumina ceramic tube is made of zirconia alumina material, which has been proven to be an anti-static material unless it reaches a certain level of low conductivity.
5. The surface structure of alumina ceramic tubes is finely processed, making them less susceptible to damage under the influence of external hard objects, and the ceramic tubes have strong resistance to impact.
Applications of alumina ceramic tubes/pipes
1. In more traditional industries, alumina ceramic tubes are commonly used in industrial ovens and furnaces.
2. Alumina ceramic tubes are insulators used for electrical connections.
3. Alumina ceramic tubes are used as heat-resistant brackets, sample racks, and drums for kilns.
4. Alumina ceramic tubes are used for spray tubes and gas nozzles.
5. Alumina ceramic tubes are used as protective tubes and ceramic insulators for thermocouples and RTDs.
Performance of alumina ceramic tubes
--Extreme high temperature stability under reducing, inert, and high-vacuum condition under high temperature up to 1800°C.
--Extreme wear and abrasion resistance.
--Chemical corrosion resistance under high temperature.
--High dielectric properties.
--Protective atmospheres or high vacuum at high-temperature to eliminate contamination or impurity.
Alumina Tube(open both ends)(slip casting) Specification Table:
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 information should we supply to get a quote?
A1: Please offer the specification of ceramic tube, such as shape, dimension, quantity, application etc.
Q2. Can alumina ceramic furnace tubes be reused after use?
A2: 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.
Q3. Are alumina ceramic furnace tubes suitable for high-pressure applications?
A3: Yes, alumina ceramic furnace tubes can be used in high-pressure applications. Their excellent mechanical strength and resistance to thermal and chemical stresses make them suitable for demanding conditions.
Q4. Can alumina ceramic furnace tubes withstand rapid temperature changes?
A4: 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.
Q5. Can alumina ceramic furnace tubes be custom-designed for specific applications?
A5: Yes, many suppliers offer customization options for alumina ceramic furnace tubes. Customization can include adjustments to size, shape, and additional features to meet the specific needs of your application.
Certificate
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