High-Strength Silicon Nitride Ceramics Dimensional Stability And Long Service

Product Specification

High-Strength Silicon Nitride Ceramics Dimensional Stability And Long Service Life For Heavy Load Conditions

Product Overview

This product is a composite structural component precision-machined from high-performance silicon nitride ceramic material, featuring an innovative integrated design with an upper cylindrical section featuring a central through-hole and a lower square base. The component exhibits the characteristic dark gray appearance of silicon nitride ceramic, with a precision-ground surface that is dense and uniform. As an advanced engineering ceramic material, silicon nitride combines exceptional strength, outstanding wear resistance, excellent thermal shock resistance, and chemical corrosion resistance, making it particularly suitable for demanding industrial applications. Its unique geometry achieves the perfect integration of positioning installation and functional load-bearing.

Core Features and Advantages

• Exceptional Mechanical Properties: High hardness (Hv ≥ 1400) and high flexural strength (≥ 600 MPa) ensure dimensional stability under heavy load conditions.

• Superior Wear Characteristics: Low coefficient of friction and good self-lubricating properties, with a service life 5-8 times longer than traditional metal materials.

• Extreme Environment Adaptability: Can maintain stable performance in long-term high-temperature environments up to 1200°C, withstanding thermal shock temperature differences up to 800°C.

• Chemically Inert Surface: Resistant to acid and alkali corrosion, incompatible with most molten metals, suitable for special process environments.

• Lightweight Design: Density of only 3.2 g/cm³, achieving both weight reduction and performance enhancement.

Typical Applications

• High-End Equipment Manufacturing: Precision shaft sleeves for automation equipment, robotic arm joint bearings, high-precision linear guideway sliders.

• Semiconductor Industry: End effectors for wafer handling robotic arms, positioning brackets within vacuum chambers, wear-resistant bushings for etching equipment.

• New Energy Sector: Fuel cell stack compression fixtures, load-bearing components for lithium battery sintering furnaces.

• Scientific Research Instruments: Sample stage support bases for electron microscopes, positioning reference components for precision measuring instruments.

Specification Parameter Table

Manufacturing Process Flow

Nanoscale powder pretreatment → Isostatic pressing → Atmosphere-protected sintering → CNC precision machining → Laser dimensional inspection → Ultrasonic flaw detection → Surface fine grinding → Micro-crack detection → Vacuum packaging.

Usage Instructions

1. Installation Recommendation: When assembling with metal parts, a transition fit is recommended, with a suggested clearance of 0.02 - 0.05 mm.

2. Fastening Specification: Use a torque wrench for installation, with a maximum fastening torque not exceeding 25 N·m.

3. Environmental Limitations: Avoid contact with strong corrosive media such as hydrofluoric acid and hot concentrated phosphoric acid.

4. Maintenance Cycle: Cleaning inspection is recommended every 2000 hours of operation; ultrasonic cleaning with anhydrous ethanol can be used.

After-Sales Service

Provides an extended 24-month warranty period with on-site technical support available. Establishes exclusive customer files and offers regular maintenance reminders. Solutions for urgent quality issues are provided within 48 hours.

Frequently Asked Questions

Q1: What is the expected service life under high-temperature and high-speed conditions?
A1: Under conditions of 600°C and 3000 rpm speed, the continuous service life can exceed 8000 hours.

Q2: Do you support customization of complex structures?
A2: Yes, custom orders based on drawings are supported, with maximum processing dimensions up to 300 × 300 × 150 mm and a minimum aperture of 0.8 mm.

Q3: How to achieve a reliable connection with a metal base?
A3: The shrink-fit method or special ceramic adhesives are recommended; we can provide matching connection technical solutions.