Silicon nitride ceramic positioning pin

Silicon Nitride Ceramic Positioning Pin Product Introduction

Silicon nitride ceramic positioning pins are precision positioning components made from silicon nitride (Si₃N₄) ceramic, primarily used in high-precision machining and automated production processes. Through its stable crystal structure formed by covalent bonds, it provides precise positioning for injection molds, welding fixtures, and other applications, preventing component displacement or vibration and ensuring processing accuracy.

Main Characteristics

1. High Hardness and Wear Resistance: Hardness is close to that of diamond (Mohs hardness 9.0), and wear resistance far surpasses traditional metal materials.

2. Excellent Thermal Stability: Withstands high temperatures up to 1200°C, has an extremely low coefficient of thermal expansion, and maintains dimensional stability under temperature changes.

3. Strong Chemical Inertness: Exhibits excellent resistance to corrosive media such as acids and bases, making it suitable for harsh environments.

4. Lightweight and High Strength: Density is only 40% of steel, but it has high bending strength and can withstand significant impact.

5. Insulating Properties: Non-conductive, suitable for applications requiring insulation, such as electronic equipment.

Application Fields

1. Aerospace: Precise positioning of engine components in high-temperature environments.

2. Automotive Manufacturing: Wear-resistant positioning in gearbox and engine assembly.

3. Precision Machinery: High-precision guidance for CNC machine tools and automated production lines.

4. Medical Devices: Corrosion-resistant positioning components in sterile environments.

5. Semiconductor Manufacturing: Positioning pins for precision equipment such as lithography machines.

Supports custom specifications.