Product Guides
I. Usage Instructions
1. Material Selection & Compatibility
– Oxide Ceramics (e.g., Alumina, Zirconia): Ideal for high-hardness/wear scenarios (cutting tools, bearings); Zirconia excels in impact resistance.
– Non-Oxide Ceramics (e.g., Silicon Nitride, Silicon Carbide): Suited for high-temperature/corrosive environments (aero-engine parts, seals); Silicon Nitride offers superior thermal shock resistance (Mohs 9.5).
– Selection Principle: Match material properties to operating conditions (temp/pressure/media) — avoid prioritizing single parameters.
2. Installation & Operation
– Bushings/Bearings: Ensure uniform load distribution; install synthetic rubber damping layers in bearing housings to prevent localized stress fractures.
– Cutting Tools (e.g., ceramic blades): Secure with dedicated fixtures; initiate low-speed break-in to mitigate thermal cracking.
– Seals Assembly: Prohibit hammering; use thermal expansion/cryogenic contraction (e.g., liquid nitrogen) for interference fits.
3. Machining & Maintenance
– Precision Machining: Employ non-contact ceramic engraving mills (micron-level accuracy for aerospace turbine blades).
– Cleaning: Use neutral solvents (anhydrous ethanol); avoid acid/alkali exposure. Post-sintered parts prohibit ultrasonic cleaning to prevent grain boundary damage.
II. Critical Precautions
1. Safety & Compliance
– Electrical Safety: Insulating ceramics (e.g., Boron Nitride sleeves) require periodic dielectric strength tests per IEC 62368-1.
– Environmental Limits: Strictly observe operating temperatures (e.g., Alumina: -20°C~800°C; Si₃N₄: -50°C~1400°C) — phase transitions occur beyond thresholds.
2. Damage Prevention & Lifespan
– Mechanical Protection: Never exceed load limits (ceramic bearings’ max RPM ≤ 80% of metal equivalents); avoid impacts/magnetic fields.
– Demagnetization: Raw materials require ≥95% iron removal — residual magnetism compromises e-ceramic performance (e.g., capacitor permittivity).
3. Maintenance Prohibitions
– Unauthorized Disassembly: Tampering with non-user-serviceable components (e.g., sintered internal structures) voids warranty.
– Firmware Modifications: Unapproved reprogramming (e.g., CNC ceramic engravers) may trigger system failures.
III. Video Learning Resources
| Manufacturing Process | Product Shown | Industry Applications |
Technical Reference
| Category | Key Terminology | Standards/Parameters |
| Material Props | Thermal shock resistance, Mohs hardness | ISO 14705 (Wear Resistance) |
| Compliance | Dielectric strength, Demag rate | IEC 62368-1, ASTM C1161 |
| National Standard of product | Specification for electronic ceramic parts | GB 9531.1～9531.7-88 |