High-Strength Silicon Nitride Industrial Ceramic Structural Component -

Product Specification

High-Strength Silicon Nitride Industrial Ceramic Structural Component - Professional Grade Wear & High-Temperature Resistant Solution

Product Introduction

This product is a high-purity silicon nitride industrial ceramic structural component sintered using advanced powder metallurgy processes. It features a dark grey appearance with a uniquely smooth and fine texture achieved through precision grinding and polishing. Renowned for its exceptional combination of properties, silicon nitride, a high-performance non-oxide ceramic, offers extreme hardness, outstanding wear resistance, remarkable fracture toughness, and excellent thermal stability. Its block-shaped structure with through-holes at both ends embodies a design philosophy focused on simplicity, regularity, and functionality, making it an ideal choice for demanding applications.

Primary Applications

Leveraging its superior properties, this component is widely used in various precision industries:

• Machinery Manufacturing: Used for balls and rollers in high-speed bearings, bearing sleeves, guides, and sliders, enabling high rotational speeds, low friction, and long service life.

• Automation & Robotics: Serves as connecting pieces for robotic arms, wear-resistant blocks for end-effectors, and guide components for linear modules, reducing weight and improving response speed.

• Automotive Industry: Applied in turbocharger rotors, wear-resistant parts for fuel injection systems, and engine components.

• Electronics & Semiconductors: Used as chip packaging fixtures, probe station parts, and heat treatment carriers, offering excellent electrical insulation and thermal shock resistance.

• Chemical & Metallurgy: Employed as corrosion and wear-resistant valve components, sealing rings, crucibles, and jigs.

Product Advantages

• Super High Hardness & Wear Resistance: Possesses high hardness, second only to diamond and CBN, with a wear life several to dozens of times longer than metal materials.

• Excellent Thermal Stability: Maintains high strength and hardness at temperatures exceeding 1200°C, resisting softening or deformation.

• Low Density & Self-Lubricity: Weighs only about 40% of steel, effectively reducing the inertia of moving parts; exhibits certain self-lubricating properties for a lower friction coefficient.

• Outstanding Thermal Shock Resistance: Withstands severe and rapid temperature changes without cracking, far exceeding the performance of alumina and zirconia ceramics.

• High Fracture Toughness: Offers relatively good toughness among ceramic materials, with excellent resistance to mechanical shock.

• Chemical Corrosion Resistance: Resists most acids, alkalis, and molten metals effectively.

Specifications & Parameters Table

Manufacturing Process

1. Powder Preparation: High-purity silicon and silicon nitride powders are mixed according to the formulation.

2. Granulation: The powder is mixed with a binder and spray-dried into granules.

3. Forming: The granules are formed into a green body via dry pressing, isostatic pressing, or injection molding.

4. Binder Burnout: The green body is heated slowly in a protective atmosphere to remove the binder.

5. Sintering: Sintering is conducted at high temperature under a pressurized nitrogen atmosphere to achieve densification.

6. Precision Machining: The sintered part is ground, lapped, and polished using diamond tools to meet drawing dimensions and surface finish requirements.

7. Inspection & Packaging: 100% dimensional inspection and non-destructive testing are performed before cleaning and packaging.

Usage Instructions

• Installation: Use a torque wrench during installation, applying force evenly according to the recommended torque. Avoid point loads or impact forces to prevent localized stress concentration and potential cracking.

• Mating Materials: It is recommended to pair with harder metals (e.g., hardened steel, stainless steel) or other ceramics to prevent wear on this component.

• Environment: Avoid prolonged use in strongly corrosive environments such as hydrofluoric acid or concentrated hot alkaline solutions.

After-Sales Service

We provide comprehensive technical support and after-sales guarantee:

• Professional technical consultation and component selection guidance.

• 12-month product warranty, offering free replacement for quality issues under normal use.

• Support for custom non-standard parts based on customer drawings, including rapid prototyping.

• Customer profiles are maintained for regular quality tracking and follow-up.

Frequently Asked Questions (FAQ)

Q1: What are the advantages of Silicon Nitride ceramic compared to Zirconia and Alumina?
A1: Silicon Nitride outperforms Alumina in toughness, thermal shock resistance, and high-temperature strength. Compared to Zirconia, it offers superior high-temperature performance (>600°C) and thermal shock resistance, with no risk of low-temperature phase transformation.

Q2: Can you machine more complex shapes?
A2: Yes. We operate advanced CNC diamond machining centers and can manufacture various complex, custom-shaped parts based on customer-provided 3D drawings.

Q3: Is this product available from stock?
A3: We keep limited stock of standard specification items. Most orders are scheduled for production based on specific requirements and quantities, with a standard lead time of 15-30 days.

Q4: How do you guarantee dimensional accuracy?
A4: We implement full-process quality control. Every step, from raw material to finished product, is inspected. Finished components are verified using precision equipment like CMMs to ensure they conform to all drawing tolerances.