Alumina Precision Ceramics Redefining Industrial Standards with Diamond-Like Hardness and High-Temperature Resistance

Alumina Precision Ceramics Redefining Industrial Standards with Diamond-Like Hardness and High-Temperature Resistance

Product Introduction

This series of cylindrical alumina ceramic products is manufactured from 99.5% high-purity Al₂O₃, featuring HV1600 hardness and cylindricity accuracy ≤0.005mm. Through specialized sintering processes, the products achieve Ra≤0.1µm surface finish while maintaining excellent mechanical properties (flexural strength ≥350MPa), making them ideal for precision shafts, guide columns, and insulating sleeves in industrial applications.

Key Applications

• Semiconductor Equipment: Vacuum chamber guide rods, wafer transfer shafts

• Medical Devices: Dental implant abutments, surgical instrument cores

• Industrial Machinery: Precision bearing sleeves, hydraulic valve cores

• Measurement Instruments: CMM probe shafts, optical platform columns

• Electronics Industry: Insulating sleeves, RF window support rods

Performance Advantages

✅ High Precision: Outer diameter tolerance ±0.003mm (precision grade)
✅ Wear Resistance: Wear rate <5×10⁻⁷mm³/N·m
✅ Multi-Functional: Supports conductive/insulating zone integration
✅ Environmental Stability: Stable performance from -60°C to 1200°C
✅ Biocompatibility: ISO 10993-5 certified (medical grade)

Technical Specifications

Precision Manufacturing Process

1. Powder Processing: 0.3µm-grade spray granulation

2. Forming Methods:

   • Dry pressing (standard sizes)

   • Isostatic pressing (high aspect ratio products)

3. Sintering Technology: 1680°C hydrogen atmosphere sintering

4. Precision Machining:

   • Centerless grinding (diameter tolerance ±0.002mm)

   • Fine grinding (cylindricity ≤0.003mm)

5. Quality Inspection:

   • 100% laser diameter testing

   • Roundness tester verification

Installation & Usage Guidelines

⚠ Installation Requirements:

• Recommended fit tolerance: H6/g5

• Ultrasonic cleaning (isopropyl alcohol recommended) before assembly

• Avoid direct hammering during installation

⚠ Usage Limitations:

• Prevent localized stress concentration

• Not suitable for HF acid environments

• Lubrication required for dynamic applications

Service & Support

• Quality Warranty: 24-month guarantee

• Technical Support: Free tolerance analysis

• Customization: Special bore/groove machining available

• Fast Response: 48-hour technical consultation

FAQ

Q: What is the maximum length-to-diameter (L/D) ratio?
A: Standard products L/D ≤ 20:1 (special processes up to 50:1)

Q: What surface treatments are available?
A: Options include polishing, chrome plating, and TiN coating

Q: Are medical-grade products compliant?
A: Yes, meets YY/T 0607-2020 dental ceramic standards

Q: Radiation-resistant options?
A: Available (withstands 10⁶Gy radiation)

We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics.

Deyu Precision Ceramics Technology Co., Ltd. has many years of experience in producing special precision ceramics, and has the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. At present, the company has production and processing equipment such as dry press, isostatic press, experimental furnace, flat kiln, machining center, surface grinder, universal internal and external grinder, centerless grinder and laser cutting machine, as well as complete high-precision testing equipment such as high-precision projector, three-dimensional tester, metallographic microscope, hardness tester and densitometer.

With advanced production technology and complete production facilities, the company is one of the few domestic enterprises that can produce special precision ceramic structural parts and functional parts with machining accuracy less than 2 microns, and has strong core competitiveness in the same industry in China.

Advantages of the company: 1. National new technology enterprises; 2. The company has a municipal R&D center; 3. Cooperation with domestic key universities and research institutes; 4. Design, molding, sintering and precision processing; 5. The products cover alumina, zirconia, silicon nitride, silicon carbide and other precision ceramics; 6. Precision plus technology.

The company has always been standing in the position of customers to solve problems, focusing on the principle of quality and delivery time, adhering to the business philosophy of "integrity, innovation and reassurance", and sincerely looking forward to cooperating with you.