Parameter Item | Technical Specification |
Applicable Product | CDC (Continuous Damping Control) solenoid valve |
Product Compatibility | Mixed-line production of internal / external valve based on two technical routes |
Core Assembly Processes | Precision interference press-fitting, automatic metered gluing, multi-axis torque-controlled tightening, online laser welding |
Press-Fitting Control | Servo press + force-displacement closed-loop monitoring |
Tightening Method | Multi-axis torque-controlled tightening mechanism |
Welding Method | Online laser sealing welding (small heat-affected zone) |
Component and Process Inspection | Online inspection of spring force, coaxiality, and pull-off force |
Functional Inspection | Electromagnetic force test, moving-iron valve-stem opening displacement inspection |
Sealing Inspection | High-precision air-tightness test + helium mass spectrometer leak detection (vacuum chamber method, ×10⁻⁶ Pa·m³/s level) |
Flow Characteristic Test | Flow–pressure-drop curve and internal leakage measurement |
Finished Product End-of-Line Test (EOL) | Current–damping-force response, opening/closing hysteresis, full-condition durability simulation calibration |
Online Inspection Architecture | Three-level (components — process — finished product) full coverage |
Process Parameter Acquisition | Automatic acquisition of all parameters including press-fitting force, tightening torque, and welding power |
Identification and Traceability | RFID / QR-code unique identification code, forward tracking + reverse tracing |
Information System Configuration | Relying on the MES platform to realize electronic records and SPC process-deviation early warning. |
