Silicon Nitride Ceramic Rectangular Block - Precision Industrial Structural Component With Central Through-Hole

Product Overview

This product is a silicon nitride ceramic rectangular block manufactured using gas pressure sintering technology. It features a uniform dark gray appearance with a mirror-like surface finish achieved through precision grinding. The product adopts a standard rectangular block structure with a precision circular through-hole running through the center, while all six surfaces maintain strict perpendicularity and parallelism. This simple yet regular design allows it to integrate perfectly into various industrial equipment, achieving lightweight design while ensuring structural strength.

Primary Applications

• Precision Machinery: Linear guide sliders for automated equipment, robotic arm connection blocks
• Semiconductor Industry: Wafer transfer robotic arm connectors, vacuum chamber internal support blocks
• Measuring Instruments: Precision measuring instrument brackets, optical platform vibration isolation support blocks
• Power Electronics: High-voltage insulation support components, heat dissipation substrates for electrical equipment
• Chemical Equipment: Corrosion-resistant pump and valve structural components, pipeline connection support blocks

Product Advantages

→ Excellent Mechanical Properties: Flexural strength ≥680 MPa, compressive strength ≥2400 MPa
→ Outstanding Wear Resistance: Vickers hardness ≥1500 HV, wear rate only 1/10 of steel
→ Superior Temperature Resistance: Can operate stably for long periods in high-temperature environments up to 1200°C
→ Excellent Insulation Performance: Volume resistivity >10¹⁵ Ω·cm
→ Low Thermal Expansion Coefficient: 3.2×10⁻⁶/°C, ensuring dimensional stability during temperature changes

Technical Specifications

Manufacturing Process

High-purity powder preparation → Binder addition → Bidirectional press molding → Cold isostatic pressing → Gas pressure sintering → Rough grinding → Precision cutting → Through-hole grinding → Mirror polishing → Performance testing

Usage Guidelines

1. Ensure clean and flat contact surfaces during installation to avoid localized stress concentration

2. Transition fit is recommended for through-hole mating, with clearance of 0.02-0.05 mm

3. When operating temperature exceeds 800°C, stepped heating and cooling processes are recommended

4. Avoid direct contact with strongly corrosive media such as hydrofluoric acid and hot concentrated alkali solutions

5. Regularly inspect surface condition, comprehensive inspection recommended every 1000 hours of operation

Service Commitment

• 24-month extended quality assurance
• Complimentary product selection and technical consultation services
• Support for custom non-standard sizes, minimum order quantity of 5 pieces
• Provision of authoritative third-party test reports
• Establishment of dedicated customer files with lifelong technical support

Frequently Asked Questions

Q: What level of dimensional accuracy can the product achieve?
A: Standard products achieve dimensional tolerance of ±0.01 mm, with ±0.005 mm available for special requirements

Q: Can subsequent machining be performed?
A: Supports precision machining, but must use diamond tools with appropriate processing parameters

Q: How does it perform in vacuum environments?
A: Silicon nitride ceramic has low vacuum outgassing rate, making it particularly suitable for vacuum applications

Q: What is the maximum size that can be processed?
A: Currently maximum processable size is 200×200×200 mm blocks, with through-hole diameter range of 2-50 mm

Product Features:
This silicon nitride ceramic rectangular block uses a unique sintering aid formulation that significantly improves mechanical reliability while maintaining high material performance. The central through-hole employs special grinding technology to ensure smooth, flawless inner walls that effectively prevent stress concentration. The product undergoes strict heat treatment processes with uniform, fine internal grains, enabling excellent performance stability even in harsh conditions such as high temperatures and corrosive environments, with service life 5-8 times longer than traditional alumina ceramics.