Alumina Ceramic Rods/Stick
- Yunxing
- China Jinzhou
- 5-30Days
- 3,000-5,000/month(Looking for distributors)
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;
Alumina Ceramic Rods/Stick
My factory looking for distributors.
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.
The finishing process of alumina industrial ceramics is to first prepare the incoming alumina powder into powder materials according to different product requirements through different molding processes. The particle size of this powder is required to be less than 1μm. If you are manufacturing high-purity alumina industrial ceramic parts or industrial ceramic structural products, in addition to the alumina purity of 99.99%, the powder needs to be ultra-finely pulverized and used The particle size distribution of the ultra-finely pulverized powder is uniform. Then the ultra-finely pulverized powder is formed by extrusion molding or injection molding. In the preparation process, a binder and a plasticizer need to be introduced into the powder. It should be noted that there is a certain ratio between the binder and the plasticizer. Require.
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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 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.How hard is alumina ceramic?
Hardness measures the ability of a material to endure mechanical wear and abrasion. Alumina ceramics are harder than steel and tungsten carbide tools. According to Rockwell hardness, alumina ceramics are at HRA80-90, second only to diamonds and above stainless steel.
2.What is alumina ceramic used for?
Because of their excellent chemical stability, alumina ceramics are used widely in acid-resistant pump impellers, pump bodies, acid-carrying pipe linings and valves. Aluminum oxide ceramics are used in the manufacture of textile wear parts and knives. This is due to their extreme hardness and wear resistance.
3.Is alumina ceramic safe?
Alumina ceramic, composed mainly of aluminum oxide (Al2O3), is widely regarded as safe for various applications due to its biocompatibility, thermal resistance, and electrical insulation properties. Used in medical implants and dental applications, it is well-tolerated by the body.
4.What is high alumina ceramic?
High alumina ceramics (99%+) can provide such good resistance to chemical attack that they can resist hydrofluoric acid and molten alkalis and alkali vapors. The chemical inertness of these same bodies make them ideal for making valves and seals exposed to severe corrosive and abrasive conditions.
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