Parameter Item | Parameter Value |
Applicable Product | Air-suspension system stiffness valve (continuous damping control valve / CDC valve) |
Production Cycle Time | ≤ 20 s/piece |
Overall Equipment Effectiveness (OEE) | ≥ 85% |
Process Capability Index (Cpk) | ≥ 1.67 |
Product Compatibility | Equipped with quick-changeover capability, compatible with mixed-line production of multiple stiffness-valve models |
Core Assembly Processes | Precision selection of valve cores, spring preloading, error-proof seal installation, online laser-welded encapsulation, servo rivet pressing and flanging |
Press-Fitting Monitoring | Real-time monitoring of press-fitting force and displacement curve, ensuring riveting stiffness and consistency |
Sealing Inspection | Intermediate in-process air-tightness test + final helium mass spectrometer leak detection (vacuum chamber method), sensitivity at the ×10⁻⁶ Pa·m³/s level |
Protection Grade | Meets high protection-grade requirements such as IP6K9K |
EOL Dynamic Test | Full-open / full-close characteristic, pressure–flow characteristic curve (Q-I), response hysteresis, internal leakage |
Vision Error-Proofing Inspection | Online vision recognition of incorrect part assembly, weld appearance, and dimensions |
Identification and Traceability | Unique QR-code / DPM-code encoding, MES data interface, full-lifecycle quality traceability |
Welding Process | Online laser-welded encapsulation, high-strength porosity-free metallurgical bonding |
Riveting Process | Servo press rivet pressing and flanging locking |
Layout Form | Modular flexible layout, covering the full process from loose-part feeding to finished-product off-loading |
Control System | Digital SPC process-capability analysis + MES data acquisition interface |
