The ultrasonic welding process of COSMETIC LIP BALM TUBE
Jelly tube lip gloss ultrasonic welding is a high-tech technology for welding thermoplastic products. Various thermoplastic plastic parts can be processed by ultrasonic welding without adding solvents, adhesives, or other auxiliary materials. The advantages are increased productivity, reduce costs, and improved product quality.
Ultrasonic tuning technicians must first be familiar with the principle of ultrasonic welding. It transmits ultrasonic energy to the welding area through the high-frequency vibration that reaches a certain amplitude. Due to the acoustic resistance at the welding area and the interface between the two welding large, so localized high temperatures will occur. In addition, due to the poor thermal conductivity of plastics, they cannot be dissipated in time for a while. The heat accumulates in the welding area and causes the contact surfaces of the two plastics to melt rapidly. After a certain pressure is applied, they are integrated into one. After the ultrasonic stops, let the pressure continue for a few seconds to solidify and form, thus forming a strong joint for welding purposes.
Essential elements for ultrasonic tuning
We can not only produce ordinary plastic tubes, but also kraft paper lip balm tubes, which are also popular with most cosmetic brands.
The quality of ultrasonic plastic welding depends on the amplitude of the transducer welding head, the applied pressure, welding time, curing time, and other factors.
Generally, the welding molds we install must be designed by professionals and must be matched with the product to ensure the welding fastness of the product and good stability during the production process. The mold installation must be tightened, the center alignment must be accurate, the base must be fixed firmly, and the mold temperature should be checked from time to time. As for burnout. In the production process, if the mold is found to be cracked or extremely hot, it should be removed and inspected or replaced immediately, otherwise, it will affect the power effect of the transducer.
Ultrasonic plastic welding methods include welding method, implantation method, riveting method, spot welding method, forming method, and cutting method.
Matters needing attention in the production process: ultrasonic plastic welding parts should be electrostatically blown and then welded to ensure that the welded products are clean inside and out.
