Aluminum oxide ceramic circular ring

Aluminum oxide ceramic circular ring is a precision ceramic component made of high-purity aluminum oxide (Al ₂ O3, content ≥ 95%) as the core raw material, through advanced processes such as dry pressing, isostatic pressing, or 3D printing, and sintered at high temperatures of 1650-1990 ℃.

Core features:
Physical properties: Mohs hardness level 9 (close to diamond), compressive strength of over 3000MPa, fracture toughness improved by 18.8% (optimized pore structure through plasma ball milling technology).
Thermal performance: melting point of 2050 ℃, thermal expansion coefficient of only 7 × 10 ⁻⁶/℃, can withstand high temperature environment of 1200 ℃ for a long time.
Chemical properties: Acid and alkali corrosion resistance (no reaction within pH range 0-14), insulation resistivity>10 ¹⁴Ω· cm.
Processing accuracy: Inner diameter tolerance ≤± 0.005mm, surface roughness Ra ≤ 0.1 μ m, supports mirror polishing to Ra ≤ 0.02 μ m.
Compared to the advantages of traditional materials:
Compared to welding ceramic plates: no brazing process is required, avoiding the risk of cracking caused by differences in thermal expansion coefficients between metal and ceramic.
Compared to sticking ceramic tiles: eliminating the problem of adhesive aging and peeling, the lifespan is extended by 3-5 times.
Compared to metal rings, it reduces weight by 60%, increases wear resistance by 10 times, and reduces maintenance costs by 70%.

Main application areas
With the excellent performance mentioned above, alumina ceramic circular rings are widely used in the following key fields:

1. Industrial equipment and machinery
   Wear resistant components: used as sealing rings, bushings, and shaft sleeves for pumps and valves, effectively resisting the wear of particulate materials.
   High temperature components: used as firing plates, rollers, insulation rings, etc. in kilns and heating equipment.
   Guidance and transmission components: used as linear guides, bearings, etc., providing high-precision, low friction motion support.
2. Electronics and Electrical Industry
   Insulation components: used as vacuum feedthrough components, insulators for high-voltage switches, circuit boards, insulation rings in semiconductor processes, etc.
   Packaging and Protection: Used to protect sensitive electronic components from environmental factors such as moisture and dust.
3. Chemical and medical fields
   Corrosion resistant components: used as acid and alkali resistant linings and parts in chemical reactors and pipelines.
   Bio inert components: Due to their non toxicity and good biocompatibility, they can be used as carriers or fixing rings in medical equipment and analytical instruments.
4. High tech and scientific research
   Laser and vacuum system: as insulation, support, and window materials for laser cavities and vacuum chambers.
   Measurement and Sensors: Wear resistant probes and insulated bases used for high-precision measurement equipment.

Customized service
We are well aware that standard products cannot meet the unique needs of all customers. Therefore, we provide flexible and professional customized services to ensure that every alumina ceramic circular ring you receive can perfectly fit your application scenario.
Precision customization of dimensions:
We can accurately process circular rings of any outer diameter, inner diameter, thickness, and special shape (such as irregular holes, steps, etc.) based on the drawings (DWG/DXF/PDF format, etc.) or specific parameters you provide.
Material formula adjustment:
We can adjust the purity of alumina or add specific trace elements according to your special requirements for performance, such as higher toughness and better thermal conductivity, to meet extreme working conditions.
Customized surface treatment:
We offer a variety of surface finish options from conventional sintering, grinding, to mirror polishing to meet your special requirements for sealing, friction coefficient, or appearance.

If you are looking for reliable, durable, and high-performance alumina ceramic circular rings, or have any questions about customized services, please feel free to contact us at any time. Our professional team will wholeheartedly provide you with the most suitable solution.

Brudeze Ceramics supplies and sells a wide range of high-quality quartz glass, including alumina ceramics, zirconia ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, boron carbide ceramics, bioceramics, machinable ceramics, etc. We can meet the customization requirements of various ceramic products.