Alumina ceramic ring sleeve

Alias: High temperature resistance and anti-pressure bushing / High frequency industrial ceramic rings

Description：

With its exceptional mechanical strength, extremely low water absorption, and excellent thermal stability, alumina (Al₂O₃) ceramic ring sleeves are the preferred component for many high-end industrial applications. These ring sleeves not only maintain performance in harsh environments but are also widely used in electronics and electrical fields due to their excellent electrical insulation properties. The unique attributes of alumina ceramic rings make them irreplaceable in industries such as aerospace, energy, semiconductors, and chemicals, making them a key component of modern industrial technological advancements.

Features:

Alumina ceramic ring sleeves (High temperature resistance and anti-pressure bushing / High frequency industrial ceramic rings) are made from high-purity alumina (Al₂O₃) material that exhibits excellent mechanical and thermal properties.

First, these ceramics have extremely high hardness and compressive strength (82 Rockwell hardness and 2000 MPa), which allows them to maintain shape and dimensional stability even under extreme conditions.

Secondly, it’s extremely low water absorption (0%) and breathability (0) ensure that it maintains excellent performance even in humid environments.

In addition, it has good thermal conductivity and thermal shock resistance (thermal conductivity of 27.5 W / (m · K), and the thermal shock resistance is △T℃ is 200℃), so that it can work stably in a high-temperature environment and is not easy to be damaged.

The relatively low coefficient of thermal expansion (7.6 x 10-6/℃) of these collars allows them to expand and contract less with temperature changes, making them beneficial for use in applications requiring precise dimensional control.

In terms of electrical properties, alumina ceramics exhibit excellent electrical insulation properties, with a volume resistance of up to 10¹⁴ Ω.cm, making them suitable for electrical insulation and other demanding electrical applications.

Applications:

Alumina ceramic ring sleeves are widely used in various high-demand industrial fields.

In the aerospace sector, it is used to make components that are resistant to high temperatures and pressures, such as engine components and thermal protection systems.

In the semiconductor manufacturing industry, these rings are commonly used to manufacture insulating components of equipment to protect sensitive electronic components from high temperatures and electromagnetic interference.

In addition, due to their high-frequency characteristics, these collars are also suitable for use in high-frequency electronic devices, such as radar and communication equipment

In the energy industry, particularly in nuclear and solar energy, alumina ceramics are used as critical structural and insulating materials due to their high-temperature stability and radiation resistance.

Also, due to their high chemical and wear resistance, they are also widely used in equipment in the chemical and mining sectors, such as pumps, valves, and sensors.

In the field of precision ceramic processing and customization, Fudong Machinery is committed to the production of various high-performance ceramic parts, including zirconia ceramics, silicon nitride, aluminum nitride and other products. These ceramic parts have excellent thermal stability, electrical insulation, high temperature stability and wear resistance, and are widely used in key fields such as aerospace, electronics, machinery, military industry, and automotive.

With its excellent performance and reliability, our products provide customers with key support and guarantees, helping them improve production efficiency and optimize product performance.