PSA Grading Card Plastic Slabs Case Sealing Ultrasonic Welding Machine

 PSA Grading Card Plastic Slabs Case Sealing Ultrasonic Welding Machine Fast, clean, safe and other advantages, realize the advanced technology of plastic welding itself, all plastic workpieces in injection molding can be welded by ultrasonic plastic welding machine; thus avoiding the inconvenience caused by the use of adhesives and other methods.

Welding principle:

The ultrasonic energy is transmitted to the two contact surfaces of the grading card packaging box through the upper weldment. Due to the large acoustic resistance at the welding area, that is, the interface between the two welding, local high temperature will be generated. In addition, due to the poor thermal conductivity of the plastic, it cannot be distributed in time and gathers in the welding area, causing the contact surface of the two plastics to melt rapidly. When the ultrasonic wave stops working, let the pressure continue for a little time to make it solidify and form, so as to form a solid molecular chain to achieve the purpose of welding, and the welding strength can be close to the strength of the raw material.