How to produce car lumbar support air bags

The production of automotive waist support air bags mainly involves material selection, preparation of processing equipment, assembly and welding of components, etc. The following is a detailed description:

Material selection
Car lumbar support airbags usually use materials such as TPU (thermoplastic polyurethane elastomer) with excellent wear resistance, cold resistance and oil resistance. This material not only has excellent durability and elasticity, but also can provide a comfortable massage experience.

Production process
Edge welding: For the edge sealing process of lumbar support inflatable airbags, the market provides a variety of high-frequency heat sealing machines for selection. Usually, the 12KW disc-type high-frequency heat sealing machine is favored by many airbag manufacturers because of its customizable number of workstations, automatic grabbing of finished products, and high efficiency and high yield. The high-frequency heat sealing machine uses the heat generated by high-frequency electromagnetic waves to melt two or more layers of materials at the contact surface, and then cools and solidifies under pressure to achieve a firm combination of materials.
Air nozzle connection: The manufacture of TPU lumbar support airbags also requires a catheter welding machine, which is specially used for welding the inflatable air nozzle to ensure the stability and air tightness of the air nozzle connection. Using an 8KW catheter welding machine can ensure stable welding effect and effectively prevent air leakage and deflation.
Precautions
Heat sealing temperature and time: The control of heat sealing temperature and time is crucial to ensure the quality of heat sealing. Too low a temperature or too short a time may cause the material to fail to fully melt, thus affecting the bonding strength; too high a temperature or too long a time may cause the material to burn or deform.
Pressure control: During the heat-sealing process, appropriate pressure helps the materials to be tightly bonded, ensuring the airtightness and structural stability of the lumbar support.
Quality inspection: After the heat-sealing is completed, the lumbar support needs to be quality inspected, including appearance inspection, airtightness test, etc., to ensure that it meets the use requirements.