How are car massage air bags produced

Material Requirements for Car Massage Airbags

TPU Membrane:

• Thickness ≥ 0.3 mm
• Tensile strength ≥ 25 MPa
• Flame retardancy rating: V-0 (UL 94)
• Ensures air tightness and safety.

Seam Process:

• High-frequency heat sealing welding
• Seam edge width ≥ 5 mm
• Burst pressure ≥ 300 kPa
• Prevents air leakage or rupture.

Structural Design of Car Massage Airbags

Air Chamber Layout:

• 3–5 independent air chambers
• Arranged in a bionic spinal curve pattern to fit the human back contour
• Enhances massage precision.

Massage Head Design:

• Hemispherical protrusion height: 2–5 mm
• Density ≤ 10 units/100 cm²
• Avoids excessive skin stimulation.

Production Process

Hot Press Forming:

• Process parameters:
  • Temperature: 180°C–200°C
  • Pressure: 5–8 MPa
  • Time: 10–15 seconds
• Ensures dimensional accuracy within ±0.5 mm.
• Equipment: Hot press machine (e.g., Shanghai Puxiong Car Airbag Hot Press Machine) equipped with an adjustable constant temperature system (0°C–300°C) and pneumatic/hydraulic drive mechanisms to accommodate different material requirements.

High-Frequency Welding:

• Process requirements:
  • Seam edge width ≥ 5 mm
  • Burst pressure ≥ 300 kPa
• Ensures welding strength.
• Equipment: High-frequency heat sealing machine (e.g., Shanghai Puxiong Automated Car Seat Airbag Production Line) utilizes high-frequency current (27.12 MHz or 40.68 MHz) to generate heat, achieving stitch-free fusion welding and eliminating air leakage risks.