Alumina ceramic insulation column

Q: What practical problems can alumina ceramic insulation columns solve?
Answer: It can provide reliable insulation support for high-voltage electrical equipment, solving the problems of material aging and insulation performance degradation in high-temperature environments; Replace metals and plastics in strong corrosion and high wear conditions to extend component life; Simultaneously meeting the stringent requirements of precision instruments for dimensional stability and dielectric performance.
Q: What value can it bring me?
Answer: Improve equipment safety and stability, reduce failure rates and maintenance costs; Adapt to extreme environments and expand device application scenarios; Support customized design to help optimize the overall structural layout.

Aluminum oxide ceramic insulation column is a ceramic structural component made from high-purity aluminum oxide (Al ₂ O3 content is usually 95% -99.5%) as raw material, which is precision formed and high-temperature sintered. It has excellent electrical insulation, mechanical strength, high temperature resistance, and chemical stability, and is widely used in fields such as power electronics, semiconductor equipment, new energy, aerospace, and industrial machinery.

Key features and advantages

1. Excellent electrical insulation performance
   -Volume resistivity>10 ¹Ω· cm, dielectric strength ≥ 15 kV/mm
   -Low dielectric loss in high-frequency environment, suitable for high-voltage switchgear, transformers, fuses and other equipment
2. High strength and wear resistance
   -The bending strength can reach over 300 MPa, and the hardness HRA is ≥ 85
   -Wear resistant, suitable for structural support in environments with mechanical stress or vibration
3. High temperature resistance and thermal stability
   -Long term use temperature can reach 1600 ℃, with a small coefficient of thermal expansion
   -High thermal conductivity, helpful for heat dissipation, suitable for supporting electric furnaces and heating elements
4. Chemical corrosion resistance
   -Resistant to acid, alkali, and organic solvent corrosion, suitable for corrosive environments such as chemical and metallurgical industries
5. Dimensional accuracy and stability
   -Small sintering deformation, capable of processing precision threads and hole positions, with tolerances controlled within ± 0.1mm
   -No aging or deformation, ensuring positioning accuracy during long-term use

Typical application scenarios
-Power and electrical industry: high-voltage insulators, circuit breaker support columns, transformer insulation components
-Semiconductor equipment: wafer carrier columns, insulation components for plasma processing equipment
-In the field of new energy: fuel cell stack insulation columns, high-voltage isolation components for photovoltaic equipment
-Industrial Machinery: High temperature sensor protective cover, precision measuring instrument insulation bracket
-Research equipment: Vacuum systems, laser equipment insulation support components

Specifications and Customization Services
We offer comprehensive customized solutions:
-Material grade: 95 porcelain, 96 porcelain, 99 porcelain, and 99.5 high-purity alumina are available for selection
-Size range: diameter from 2mm to 150mm, length up to 500mm
-Shape configuration: solid/hollow cylinder, irregular structure, end opening/thread/metallization treatment
-Surface treatment: polishing, sanding, silver plating, nickel plating, etc

Customer Application Case (Anonymous)
-Case A: A domestic high-voltage switch manufacturer uses our 99 ceramic insulation column to replace the original epoxy resin parts, increasing the product’s withstand voltage level from 10kV to 35kV and extending its lifespan by three times.
-Case B: A new energy enterprise customized alumina ceramic columns with internal threads for fuel cell stacks, which operated continuously for 8000 hours in an acidic environment at 80 ℃ without performance degradation.
-Case C: A semiconductor equipment supplier purchases bulk precision ceramic columns for wafer transfer systems, with a dimensional accuracy full inspection pass rate of ≥ 99.5%, significantly reducing equipment failure rates.

Alumina ceramic insulation columns are becoming the preferred material for high demand insulation and structural applications due to their comprehensive performance advantages. We are committed to providing customers with high-performance, high reliability products and customized solutions.
If you need to learn more about specifications, obtain samples, or consult customized solutions, please feel free to contact us. We will provide you with professional product selection support and fast response services.

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.