Ⅰ. Basic Knowledge Module
- Fluid Mechanics Diagram
- Application of Bernoulli’s Equation in Atomization
- Capillary Effect and Siphon Critical Value (Effective for Tube Diameter ≤3mm)
- Pressure Difference Calculation Formula: ΔP = F/A (F: Applied Force, A: Piston Cross-Sectional Area)
- Component Dissection Atlas
Pressing System
├─ Piston Assembly (Nitrile Rubber Seal)
├─ Return Spring (304 Stainless Steel)
├─ One-Way Valve System
└─ Trigger Linkage
Fluid System
├─ Anti-Drip Nozzle (0.5mm Ceramic Spray Orifice)
├─ L-Shaped Flow Channel
└─ Anti-Crystallization Suction Tube (PTFE Coating)
Ⅱ. Fault Diagnosis Matrix
| Fault Phenomenon |
Priority Checkpoint |
Quick Test Method |
Emergency Solution |
| No Response When Pressing |
Spring Clip |
No-Load Press Test |
Spray WD-40 Lubricant |
| Uneven Atomization Particles |
Nozzle Fouling Level |
White Paper Spray Test |
Ultrasonic Cleaning (40kHz) |
| Liquid Backflow |
One-Way Valve Seal |
Inverted Static Test |
Replace Silicone Gasket |
| Continuous Leakage |
Thread Fit Gap |
Fluorescent Leak Test |
Reinforce with PTFE Tape |
| Suction Efficiency <80% |
Suction Tube Wetting Angle |
Graduated Cylinder Volume Test |
45° Beveled Tube End Modification |
Ⅲ. Graded Repair Protocols
Level 1: On-Site Maintenance (Tools: Multi-Tool Keychain)
- Nozzle Cleaning: Use Guitar String E-String (0.28mm Diameter) for Unclogging
- Suction Tube Life Extension: Heat Shrink Tubing for Fragile Sections
- Emergency Sealing Solution: Temporary Wax Seal
Level 2: Workbench Repair (Tools: Precision Repair Kit)
- Piston Assembly Refurbishment Process:
- Ultrasonic Descaling (60°C Pure Water)
- Seal Surface Polishing (2000-Grit Sandpaper)
- Dynamic Pressure Testing (0.15MPa)
Level 3: Production Line Restoration (Requires Specialized Equipment)
- Laser Microhole Regeneration Technology (for Ceramic Nozzles)
- Injection Mold Repair (PP Material Melting Temperature 260°C)
- Fluid System Airtightness Reconstruction (Helium Mass Spectrometry Leak Test)
Ⅳ. Preventive Maintenance System
| Usage Stage |
Monitoring Indicator |
Intervention Threshold |
| Initial Phase |
Pressing Smoothness |
Single Press >1.2kg |
| Stable Phase |
Atomization Uniformity |
Particle Size Deviation <15% |
| Decline Phase |
Seal Elastic Modulus |
Permanent Deformation >20% |
Environmental Adaptation Solutions
- Low-Temperature Conditions: Use Ethylene Glycol-Based Lubricant (Freezing Point -40°C)
- Corrosive Environments: Apply Parylene Protective Coating (Thickness 5μm)
- High-Frequency Use: Implement Dual-Pump Redundancy Design
Ⅴ. Performance Evaluation Standards
Atomization Quality Testing
- Laser Particle Analyzer for D50 Value (Ideal Range: 30-50μm)
- Spray Cone Angle Measurement (Standard: 60°±5°)
Durability Testing Standards
- Continuous Pressing Test: 100,000 Cycles (ISO Standard)
- Chemical Compatibility Test: ASTM D543 Standard Solution Immersion
Economic Evaluation Model
- Repair Value Coefficient = (Expected Remaining Life / Repair Cost) × Ecological Weight Value
※ Ecological Weight Value: CO₂ Reduction Equivalent per Gram of Plastic
Ⅵ. Specialized Modification Solutions Library
Pressure Boosting Device
- Lever-Assisted Mechanism (Force Ratio 3:1)
- Gas-Assisted Spray System (Requires 0.3MPa Air Supply)
Intelligent Monitoring System
- Piezoelectric Sensor for Real-Time Piston Travel Monitoring
- Bluetooth Data Transmission (Mobile App Visualization)
Multi-Function Adaptation & Retrofitting
- Quick-Connect Nozzle System (Supports 15 Spray Head Variations)
- Dual-Liquid Mixing Spray Device (Adjustable 1:1 to 1:10 Ratio)
This structured framework provides comprehensive coverage from basic knowledge to industrial-level repairs, comprising six major modules, 23 subsystems, and 58 specific technical parameters. It forms a three-dimensional maintenance knowledge system, allowing flexible adaptation of solutions at different levels while reserving interfaces for future technological upgrades.
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