Alumina Ceramic Square Rods
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Advantages of Alumina Ceramic Square Rods
1. Alumina ceramic rods have obtained good utilization effects in my country's power applications by virtue of their extraordinary resistance to electricity, and can withstand greater impact, and electricity safety can be guaranteed.
2. 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.
3. Alumina ceramic rods have very good chemical stability and can resist acid corrosion at high temperatures.
Applications of Alumina Ceramic Square Rods
99 alumina ceramics have long been widely used in smart products such as displays, backlights on mobile phones, unmanned aircraft, cruise missiles, photoelectric pods, atomic clocks, optical resistance equipment, photoelectric trackers and infrared warning systems and other military products and Special components such as watches, LED lighting fixtures and civilian products industries
Size,Performance index
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 is the difference between ceramic and alumina?
A1. Ceramics are non-metallic, inorganic materials that are typically composed of a combination of metallic and non-metallic elements. Alumina is a type of ceramic oxide, specifically an oxide of aluminum. It is widely used in various applications due to its excellent mechanical, thermal, and electrical properties.
Q2. What is alumina ceramic used for?
A2. 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.
Q3. Is alumina ceramic hard?
A3. Alumina is a very hard ceramic that is excellent at resisting abrasion and is ideal for wear-resistant inserts or products.
Certificates
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