Alumina Ceramic Nut Parts
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No: B40#
Shape: Threaded nozzle
Size: Φ36/M30*Φ20/13*30/13 mm
Advantages of alumina ceramics nut parts
1. Alumina ceramics have a melting point of about 2050 ° C and can maintain stable crystal structure at high temperatures (such as 1600 ° C). Their low thermal expansion coefficient can reduce cracking caused by sudden temperature changes.
2. Alumina ceramics have excellent resistance to concentrated sulfuric acid, hydrochloric acid, strong alkali, and organic solvents, and are resistant to atmospheric corrosion. They are not easily oxidized or rusted in humid and salt spray environments.
3. Alumina ceramics have ultra-high hardness and wear resistance, high strength and compressive strength.
4. Alumina ceramics have excellent dimensional stability, which means they maintain their shape and size under extreme conditions.
Applications of alumina ceramics nut part
1. Alumina ceramics nut parts are used for: ceramic nuts for satellite antenna deployment mechanisms and fasteners for rocket engine fuel nozzles.
2. Alumina ceramics nut parts are used for: high-voltage connection bolts for lithium battery modules (capable of withstanding 3000V voltage), and sealing nuts for hydrogen fuel cell stacks.
3. Alumina ceramics nut parts are used for: adjusting ceramic nuts for optical telescope barrels and fasteners for semiconductor wafer handling robots.
4. Alumina ceramic nut parts are used for: ceramic lining nuts for mud pumps on deep well drilling platforms, and fasteners for low-temperature equipment in polar scientific research stations.
Performance index
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,Factories are ISO9001 certified, Alumina ceramic products are SGS, DIN43725, 40680 certified.
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.
Our products are widely used in Semiconductor, Medical, Aerospace, Scientific Research, Fluid Controlling, Food Processing, Automotive, Defense, Thermal Processing, Electronic and Electrical, Mineral Processing,Textile, Pulp and Paper, Glass Processing, Mechanical Engineering, etc.
Our has established a high standard of quality system and strict quality control process, each batch of products are subjected to strict quality inspection, and different packaging requirements for different products to ensure the safe transportation of products.In order to ensure quality, the company adopts advanced finished product inspection equipment and standardized Gage calibration;Including automatic inspection equipment, coordinate measuring instrument, etc.
The service philosophy of our is meeting quality requirement and customer satisfaction. When there are problems of order, Our quickly respond to the honestly situation to the customer and give the customer the solution in short time. This service concept has resulted in the long-term cooperation between our and customers.
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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