Alumina Ceramic Rings High-Precision Filtration & Chemical Resistance for Water Treatment

Product description

• 1. As the most widely used medium-high purity alumina ceramic in industry, it contains approximately 95% Al₂O₃, with the remaining 5% consisting of sintering aids like silicon dioxide (SiO₂), magnesium oxide (MgO), and calcium oxide (CaO) .
• 2. Key Performance
  • *High-Temperature Resistance: It operates continuously at 1200-1300°C and tolerates short-term exposure to 1500°C, with a high-temperature strength attenuation rate < 15%—stable enough for moderate heat environments like industrial kilns.
  • *Insulation & Heat Conductivity.
  • *Corrosion Resistance: It resists dilute acids and alkalis (concentration < 30%) but struggles with concentrated hydrochloric acid and sodium hydroxide.
• 3.Typical Application of alumina ceramic flange

• • Mechanical field: Used for bearing inner/outer rings, sealing rings, and wear-resistant bushings. Replacing metals with it reduces wear, extending component life by 2-3 years.
  • Electronic field: Serves as bases for ordinary electronic components, insulation brackets, and heater casings—its insulation ensures safe device operation.
  • Chemical field: Employed in low-concentration acid/alkali transportation pipelines and valve cores, preventing leakage and contamination.
  • Daily industry: Functions as grinding wheel substrates and ceramic tool blades (for non-high-precision cutting, like processing plastics or non-ferrous metals).

• *Mechanical Strength: Flexural strength ≥ 350 MPa, compressive strength ≥ 2200 MPa, and hardness (HV10) ≥ 1500. Wear resistance is 20% higher than 95% alumina ceramic, durable for high-wear parts like precision seals.
• *High-Temperature Resistance: It operates continuously at 1400-1500°C and tolerates short-term 1700°C exposure. Its high-temperature chemical stability far exceeds 95% grades, with no reaction to most gases or molten materials.
• *Insulation & Heat Conductivity: Volume resistivity at 25°C is ≥ 10¹⁴ Ω·cm—an order of magnitude higher than 95% grades—perfect for high-voltage electronics like IGBT insulation substrates. Thermal conductivity (20-22 W/(m·K)) enables efficient heat dissipation for high-power devices.
• *Corrosion Resistance: It withstands acids/alkalis with concentration < 50% and is stable in organic solvents (ethanol, acetone).

• Electronics & Power: Used for power semiconductor (IGBT) insulation substrates, high-frequency transformer frames, and precision resistor casings—lowering electronic failure rates by 30%.
• Metallurgy: Functions as high-temperature furnace supports and thermocouple protection tubes (measuring up to 1400°C), ensuring accurate temperature monitoring.
• Medical: Serves as dental implant bases and surgical instrument wear-resistant heads—low impurities and smooth surfaces reduce infection risks.
• New Energy: Employed in lithium battery tab welding fixtures and photovoltaic component high-temperature insulation pads, extending new energy device life by 1-2 years.

• *Corrosion Resistance: Withstands 95% hydrochloric acid and 40% sodium hydroxide, with a corrosion rate < 0.01g/m²·h.
• *High-Temperature Resistance: Long-term service temperature reaches 1600°C, short-term up to 2000°C.
• *High Precision: Machining accuracy is ±0.02mm (±0.01mm for high-precision models), 40% higher than traditional ceramic rings, meeting precision equipment assembly needs.
• *High Mechanical Strength: Flexural strength ≥ 350MPa and compressive strength ≥ 2000MPa, with 20x the load-bearing capacity of same-spec plastic rings—reducing transport/use breakage.

• *Chemical Reactor Liner: Resists acid/alkali corrosion, extending equipment life by 3-5 years and ensuring reaction product purity.
• *Electronic Insulation Support: Volume resistivity ≥ 10¹⁴Ω·cm maintains insulation in high-temperature/humidity environments, boosting equipment reliability.
• *Water Treatment Filter Filler: 5-50μm pore structure achieves > 98% filtration efficiency, with 5x the service life of traditional filters and easy cleaning.
• *Automotive Engine Heat Dissipation: High-temperature resistance (1600°C) and thermal conductivity lower component temperature by 15-20°C, reducing engine failures.

• After-Sales Policy: 1-year warranty for regular products. For quality issues during warranty, we respond within 48 hours and complete maintenance/replacement within 7 days.
• Featured Services: Customization according to your requirements ad drawings(size: 5-500mm diameter; shape: circular/irregular; precision: ≥±0.01mm) with free design solutions.