Detailed explanation of welding hot sealing technology of car seat back inflatable air bag

I. Detailed Materials for Car Seat Backrest Inflatable Airbags

1. Polyester Fiber
   Polyester fiber is one of the primary materials used in inflatable airbag manufacturing. It offers excellent strength, abrasion resistance, and chemical resistance, effectively protecting occupants and equipment from external impacts. This material ensures the airbag’s durability and safety.

2. Nylon Fabric
   Nylon fabric is another common material for inflatable airbags. Known for its high strength, abrasion resistance, and tear resistance, it is particularly suitable for high-pressure airbags. Nylon fabric ensures structural integrity under high-pressure conditions.

3. Plastic Film
   Plastic film is typically used as the airtight layer of inflatable airbags. Its superior gas barrier properties prevent air leakage, which is critical for maintaining inflation effectiveness and longevity.

4. Rubber
   Rubber (including natural rubber and synthetic rubber) is a key material for airbag production. With excellent elasticity, abrasion resistance, and chemical resistance, rubber enhances the airtightness and durability of airbags when used in sealing layers.

5. Connectors
   Components such as zippers, buckles, and ropes are essential for securing and deploying airbags. The selection and quality of these connectors directly impact the airbag’s overall performance and safety.

II. Welding and Heat-Sealing Technology
In the manufacturing of car seat backrest inflatable airbags, welding and heat-sealing technology is a critical process for ensuring airtightness and structural integrity.

Airbag Connection Process:

• Ensure material compatibility at connection points to enhance bond strength and stability.
• Clean connection surfaces thoroughly to remove dust, grease, and contaminants.
• Use a heat-sealing welder to melt and fuse materials at connection points by applying heat, pressure, and holding time.
• Conduct quality inspections to verify connection robustness.

Airbag Sealing Process:

• Select materials with superior sealing properties.
• Bond the edges of the airbag to the seat cushion to form an airtight seal.
• Apply heat and pressure via a heat-sealing welder to fuse materials and complete the seal.

Technical Considerations:

• Choose heat-sealing equipment with precise temperature and pressure control.
• Optimize temperature and duration settings to avoid under- or over-welding.
• Strictly inspect materials and adhesives for quality compliance.
• Perform post-welding inspections to ensure adherence to specifications.