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99% Bague en céramique d'alumine

Bague en céramique/

99% High-Purity Alumina Ceramic Ring

Notre 99% alumina ceramic ring is precision-sintered from high-purity Al₂O₃, featuring a standard circular shape, mirror-smooth outer surface (Ra ≤ 0.1μm), rounded burr-free edges, and pure white appearance. It matches dark industrial equipment and delivers outstanding precision, high-temperature resistance, résistance à la corrosion, and insulation performance.

Core Design Highlights

  • One-piece molding

Seamless design with uniform internal stress, compressive strength ≥ 300MPa, eliminates fracture risks of traditional split rings.

  • Precision dimension control

ID/OD tolerance ± 0.01mm, concentricity ≤ 0.005mm, ideal for high-precision bearings, sealing and insulation applications.

  • Détails du produit
  • Spécifications techniques

Core Advantages Of Alumina Ceramic Ring

Extreme Environment Resistance

High temperature & creep resistance: Stable up to 1200°C, low thermal expansion (7.2×10⁻⁶/°C), no deformation at high temperature. Suitable for melting furnaces and sintering kiln components.

Full chemical inertness: Resists HCl, HF (<5% F⁻), molten salt corrosion; service life >10× that of metal rings.

Precision Motion & Sealing

Ultra-low friction: Mirror-polished surface, friction coefficient <0.1, reduces energy consumption, suitable for high-speed bearings (>10,000rpm).

Zero-leak sealing: Flatness ±0.002mm, sealing contact >99%, pressure resistance ≥50MPa, ideal for ultra-high pressure pump & valve seals.

Multi‑functional Adaptability

Insulation & thermal conductivity: Dielectric strength ≥20kV/mm, thermal conductivity 30W/m・K, suitable for semiconductor insulation rings and laser heat sinks.

Lightweight design: Density 3.9g/cm³, 1/3 the weight of stainless steel, reduces inertia load in high-speed equipment.

Performance Comparison

ItemMetal RingCeramic Ring Solution
Température maximale<800°C (oxydation & déformation)1200°C (stable)
Wear Life6–12 months (lubrication required)>5 années (maintenance-free)
Sealing ReliabilityLeaks easily under high temp & pressureZero leakage, 50MPa pressure rating
5-Year Total Cost>¥8,000/year~¥1,500/year (81% cost reduction)

Applications Of Alumina Ceramic Ring

  • 🔌 Semiconductor Equipment

    Insulation rings for semiconductor production equipment

  • 💧 High-pressure Pump & Valve

    Professional sealing rings for ultra-high pressure fluid systems

  • ⚙️ High-speed Bearing

    Wear-resistant components for high-speed rotating bearings

  • 🔦 Laser Equipment

    High-efficiency heat sinks for laser industrial devices

  • 🔥 High-temperature Furnace

    Transmission parts for sintering & melting furnaces

  • 🧪 Chemical & New Energy

    Corrosion-resistant parts for chemical and new energy equipment

JiFeng Ceramics Custom Service

  • Custom Dimensions & Shapes
    We tailor dimensions, shapes and thicknesses according to your on-site demands.
  • Drawing Customization & Sample Testing
    Full support for OEM & ODM, we provide samples for confirmation before mass production.
  • Multiple Material Choices
    95% alumine, 99% high-purity alumina and zirconia are available for selection.
  • Fast Quotation & Reliable Lead Time
    Quick response for quotes and strict control over production cycles.

FAQ

Can you customize according to our drawings?

Oui, we support OEM/ODM and drawing customization.

What’s the lead time for samples?

7–10 days for samples; 15–25 days for mass production.

Is it suitable for HF and strong alkaline environments?

Oui, ideal for low-concentration HF and high-temperature alkaline conditions.

 

ParamètreStandard
Matériel95% Al₂O₃ (optional: 99% high-purity / zirconia composite)
Size RangeID Φ5–200mm, wall thickness 0.5–20mm (customizable)
Rugosité de la surfaceRa ≤0.1μm (mirror grade)
Résistance à la compression300MPa (static axial pressure)
CertificationsOIN 286-2 (dimensional tolerance), ASTM F2098 (scellés)

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