Core function design of ETFE membrane material welding machine

1. Temperature Control System

• Accuracy Requirement: ±2°C (critical due to ETFE's narrow melting range; temperature fluctuations induce weld brittleness)
• Implementation Methods:
  • High-Frequency Welding: Real-time IR pyrometer feedback + PLC-driven dynamic power adjustment
  • Hot-Air Welding: PID-regulated airflow temperature + cooling air compensation
  • Laser Welding: Closed-loop power control + reflectivity-based energy auto-calibration

2. Pressure Control System

• Pressure Range: 0.2–2 MPa (adjustable per film thickness)
• Implementation Methods:
  • Pneumatic/Hydraulic Systems: Uniform pressure distribution to prevent localized overpressure
  • Elastic Pressure Rollers: Conformal welding capability (e.g., dome structures) + auto-compensation mechanism

3. Motion System

• Rail-Guided:
  • Application: Long linear seams (e.g., tensile membrane roofs)
  • Precision: ±0.1 mm/m
• Robotic Arm:
  • Application: Complex 3D contours (e.g., pneumatic structures)
  • Configuration: ≥6-axis articulation
• Manual Sliding Stage:
  • Application: Small-scale fabrication/on-site repairs
  • Requirement: Guide rails for linear accuracy maintenance