Liaoning Unify High Frequency Equipment Co., Ltd.

Welding Methods and Principles of PVC Welding Technology

Welding method
1. PVC welding method: Ultrasonic vibration is transmitted to the weldment with the welding head. Since the sound resistance of the two weldments is large, local high temperature is generated, and the weldment interface is melted. Under certain pressure, the two weldments achieve an aesthetic, fast and strong welding effect.

2. PVC welding embedding method: Nuts or other metals are inserted into plastic parts. First, the ultrasonic wave is transmitted to the metal, and after high-speed vibration, the metal object is directly buried in the molded plastic, and the plastic is melted at the same time. After it is cured, it is buried.

3. PVC welding riveting method: If you want to join metal and plastic or two plastics with different properties, you can use the ultrasonic riveting method to make the welding parts not easy to be brittle, beautiful and strong.

4. PVC welding spot welding method: The small welding head is used to weld two large plastic products by spot welding, or the whole toothed welding head is directly pressed on two plastic workpieces to achieve the spot welding effect.

5. PVC welding molding method: Ultrasonic plastic parts are instantly melted and molded, and metal or other plastic materials can be solidified when the plastic is solidified.

6. PVC welding cutting method: Using the special design method of the welding head and the base, when the plastic workpiece is just shot, it is directly pressed on the branches of the plastic, and the effect of cutting is achieved by ultrasonic conduction.

The working principle
The working principle of PVC welding means that the quality of ultrasonic plastic welding depends on the three factors of the amplitude of the transducer welding head, the applied pressure and the welding time. Welding time and weld head pressure are adjustable. The amplitude is determined by the transducer and the horn. The interaction of these three quantities has a suitable value. When the energy exceeds the appropriate value, the melting amount of the plastic is large, and the welding material is easily deformed; if the energy is small, the welding is not easy, and the applied pressure cannot be too large.
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