Composants de la chemise d'arbre en céramique d'oxyde d'aluminium

Aluminum oxide ceramic shaft sleeve is an industrial component made mainly of high-purity aluminum oxide (Al ₂ O3) through precision processes such as isostatic pressing and high-temperature sintering.
Caractéristiques principales :
Ultra hard and wear-resistant: The Rockwell hardness reaches HRA80-90, and the wear resistance is 266 times that of manganese steel. It can withstand high load friction and significantly extend equipment life.
High temperature and corrosion resistance: It can operate stably in an environment of 1600 ℃ for a long time and is resistant to strong acid and alkali corrosion. It performs well in harsh working conditions such as chemical and metallurgical industries.
Low insulation loss: Its high resistivity and low dielectric loss characteristics make it an ideal insulation material for electronic components and high-voltage equipment.
Usinage de haute précision : Through CNC precision carving, five axis linkage and other processes, precision manufacturing with an inner diameter tolerance of ± 0.002mm and a cylindricity of ≤ 1 μ m can be achieved.

Scénarios d'application

1. High end equipment manufacturing: breaking through the limits of metal materials
   Problem: Traditional metal shaft sleeves are prone to softening and wear in high-temperature, high-speed, and highly corrosive environments, leading to frequent equipment shutdowns.
   Solution :
   Aircraft engine: The alumina ceramic shaft sleeve has a temperature resistance of 1700 ℃ and a thermal expansion coefficient only one-third of that of metal, solving the problem of high-temperature deformation in turbochargers.
   Équipements semi-conducteurs : In the process of wafer etching and polishing, the plasma corrosion resistance and low particle contamination characteristics of ceramic bushings meet the requirements of 12 inch wafer manufacturing.
   Nuclear magnetic resonance instrument: non-magnetic and has no eddy current loss characteristics. After replacing metal components, the equipment failure rate is reduced by 90%.
2. New energy vehicles and intelligent driving: balancing lightweight and reliability
   Problem: The motor speed of electric vehicles reaches 20000 revolutions per minute, and traditional bearings are prone to failure due to frictional heat generation.
   Solution :
   Tesla 4680 battery production line: using magnetic drive water pump with alumina ceramic shaft sleeve, the service life is extended by 10 times, the noise is below 35dB, and it achieves completely waterproof operation underwater.
   Surgical robot joint: Zirconia ceramic shaft sleeve (excellent biocompatibility) helps Da Vinci robot achieve 0.1mm level precision operation, with wear resistance 5 times higher than titanium alloy.
3. Chemical and Ocean Engineering: Corrosion Resistance Revolution
   Problem: The metal shaft sleeve punctures within 3 days in 37% concentrated hydrochloric acid, resulting in high maintenance costs.
   Solution :
   Marine drilling platform: Ceramic shaft sleeves are corrosion-resistant in salt spray environments, with a lifespan of over 20 years. After replacing traditional stainless steel components, the annual maintenance cost is reduced by 80%.
   Medical reaction kettle: lined with 99.9% pure alumina ceramic, resistant to strong acidic and alkaline media, ensuring zero pollution in drug production.

Service personnalisé

1. Customization of materials and processes
   Sélection de la pureté : We offer 95%, 99%, and 99.6% purity alumina ceramics to match different cost and performance requirements.
   95% alumina: suitable for large-diameter shaft sleeves, serving the mid to low end market.
   99.6% alumina: used in semiconductor etching equipment to meet the corrosion resistance requirements of plasma environment.
   Composite material: Zirconia toughened alumina (ZTA) shaft sleeve, with a 50% increase in impact resistance, suitable for high vibration conditions.
2. Customization of Structure and Dimensions
   Alien processing: supports complex structural designs such as stepped shaft sleeves, threaded shaft sleeves, and flange type connecting cylinders.
   Case: Customized wear-resistant ceramic cylinder liner with inner diameter tolerance controlled within ± 0.005mm.
   Micro hole processing: The minimum pore size can reach 0.1mm, meeting the requirements of precision fluid control.

Alumina ceramic shaft sleeve is not a simple metal substitute, but a performance upgrade solution for harsh working conditions such as wear resistance, corrosion resistance, high temperature resistance, and insulation. It fundamentally solves the problems of short lifespan, high failure rate, and high maintenance cost of traditional components through excellent material properties, providing a solid guarantee for the long-term, stable, and efficient operation of equipment.
If you are troubled by frequent replacement of shaft sleeves, unexpected equipment shutdown, etc., please contact us. Whether it’s standard parts or customized services, we will provide you with the most professional technical support and product solutions.

Brudeze Ceramics fournit et vend une large gamme de verre de quartz de haute qualité, y compris des céramiques d'alumine, des céramiques de zircone, des céramiques de nitrure de silicium, des céramiques de nitrure d'aluminium, des céramiques de carbure de silicium, des céramiques de carbure de bore, des biocéramiques, des céramiques usinables, etc. Nous pouvons répondre aux exigences de personnalisation de divers produits céramiques.