Alumina Ceramic Rods/Stick
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Advantages of Alumina Ceramic Rods/Stick
1. The alumina ceramic rod has high hardness, good wear resistance, low thermal conductivity, and good chemical stability and wear resistance;
2. Alumina ceramic rods have high fire resistance, and must be able to withstand high temperatures above 1500 degrees Celsius at least;
3. The alumina ceramic rod has very good chemical stability, so it can resist acid corrosion at high temperature;
4. The strength of the alumina ceramic rod is relatively large, and the chemical stability and wear resistance are relatively good, and its density will be very high;
5. Alumina ceramic rods are inorganic, non-metallic materials. Because the entire melting point can reach degrees Celsius, it is one of the best refractory products in the entire nature.
Applications of Alumina Ceramic Rods/Stick
1. Electrical and Electronic Components: Alumina ceramic rods are used as insulators in high-voltage applications, substrates for electronic circuits, and components in semiconductor manufacturing equipment due to their excellent electrical insulation properties.
2. Thermal Applications: Their high thermal stability makes them suitable for use in furnace components, thermocouple protection tubes, and heater support elements, where they can withstand extreme temperatures.
3. Mechanical and Structural Components: The high mechanical strength and wear resistance of alumina ceramic rods make them ideal for use in machinery parts, such as bearings, seals, and cutting tools, where durability is essential.
4. Chemical Processing: In the chemical industry, alumina ceramic rods are used in applications requiring resistance to corrosive chemicals, such as in reactors, pipelines, and filtration systems.
5. Medical Devices: Due to their biocompatibility and resistance to body fluids, alumina ceramic rods are used in medical implants and surgical instruments, ensuring longevity and reliability in medical applications.
6. Aerospace and Defense: The high-performance characteristics of alumina ceramic rods make them suitable for use in aerospace components, such as engine parts and structural elements, where weight, strength, and thermal resistance are critical.
7. Automotive Industry: In the automotive sector, alumina ceramic rods are used in sensors, spark plugs, and various engine components to enhance performance and reliability.
Manufacturing Processes
1. Powder Processing: The production of alumina ceramic rods begins with the preparation of high-purity aluminum oxide powder. This powder is mixed with binders and additives to achieve the desired consistency and properties.
2. Forming: The mixed powder is then formed into rod shapes using techniques such as extrusion, injection molding, or pressing. Extrusion is commonly used for producing long, continuous rods, while pressing is suitable for shorter, precision rods.
3. Drying and Machining: After forming, the rods are dried to remove any residual moisture. They are then machined to achieve the desired dimensions and surface finish. Machining processes include grinding, lapping, and polishing.
4. Sintering: The machined rods are subjected to high-temperature sintering, where they are heated to temperatures between 1400°C and 1600°C. This process densifies the material, enhancing its mechanical and thermal properties.
5. Finishing: Post-sintering, the rods may undergo additional finishing processes, such as diamond grinding, to achieve precise dimensions and surface quality.
Alumina round rods Specification Table | |||||||
Number | Diameter | LENGTH MM | Number | Diameter | LENGTH MM | ||
| INCH | MM | INCH | MM | ||||
| 1 | 0.031 | 0.79 | ≤1250 | 25 | 0.630 | 16 | ≤1500 |
| 2 | 0.039 | 1 | 26 | 0.669 | 17 | ||
| 3 | 0.059 | 1.5 | 27 | 0.688 | 17.5 | ||
| 4 | 0.062 | 1.58 | 28 | 0.748 | 19 | ||
| 5 | 0.079 | 2 | ≤1500 | 29 | 0.750 | 19.05 | |
| 6 | 0.100 | 2.5 | 30 | 0.787 | 20 | ||
| 7 | 0.118 | 3 | ≤1750 | 31 | 0.827 | 21 | |
| 8 | 0.125 | 3.18 | 32 | 0.866 | 22 | ||
| 9 | 0.157 | 4 | 33 | 0.906 | 23 | ||
| 10 | 0.187 | 4.75 | 34 | 0.945 | 24 | ||
| 11 | 0.197 | 5 | 35 | 0.984 | 25 | ||
| 12 | 0.236 | 6 | 36 | 1.000 | 25.4 | ||
| 13 | 0.250 | 6.35 | 37 | 1.063 | 27 | ≤1250 | |
| 14 | 0.276 | 7 | 38 | 1.126 | 28.6 | ||
| 15 | 0.312 | 7.92 | 39 | 1.181 | 30 | ≤800 | |
| 16 | 0.315 | 8 | 40 | 1.250 | 31.75 | ||
| 17 | 0.333 | 8.47 | 41 | 1.378 | 35 | ||
| 18 | 0.375 | 9.53 | 42 | 1.500 | 38.1 | ||
| 19 | 0.394 | 10 | 43 | 1.575 | 40 | ||
| 20 | 0.433 | 11 | 44 | 1.654 | 42 | ||
| 21 | 0.472 | 12 | 45 | 1.750 | 44.45 | ≤500 | |
| 22 | 0.500 | 12.7 | 46 | 1.875 | 47.6 | ||
| 23 | 0.551 | 14 | ≤1500 | 47 | 1.969 | 50 | ≤300 |
| 24 | 0.591 | 15 | 48 | 2.000 | 50.8 | ||
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 |
Composition table
| NAME | CONTENT(%) |
| Al2O3 | 99-99.3(99.5) |
| SiO2 | 0.3-0.5 |
| CaO+MgO | 0.2-0.3 |
| K2O+Na2O | 0.2-0.35 |
| Fe2O3 | <0.1 |
| OTHER | <0.05 |
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 rod, such as shape, dimension, quantity, application etc.
Q2: What are the benefits of using alumina ceramic rods for textiles?
A2. Textile Alumina ceramic rods have excellent heat resistance, durability, and non adhesive properties. They are lightweight, easy to clean, and corrosion resistant.
Q3: What types of textile applications can alumina ceramic rods be used for?
A3. Alumina ceramic rods can be used in various textile applications, including weaving, knitting, embroidery, and dyeing.
Q4: Is it safe to use alumina ceramic rods for textiles?
A4. Yes, alumina ceramic rods used for textiles are usually safe. However, it is important to follow the instructions and not expose it to excessive temperatures
Certificates
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