How much do you know about the most advanced welding process "ultrasonic welding"?
1. How is the high temperature produced?
When we are welding plastics, we need higher temperatures. Traditional welding uses gas combustion to generate high levels, such as acetylene. For ultrasonic plastic welding machines, the source of high temperature is the high frequency vibration generated by ultrasonic waves. This high frequency vibration transmits ultrasonic energy to the contact surface of the workpiece through the weldment. , As the contact surfaces vibrate and rub against each other, high temperatures are generated.
2. How is the plastic welded?
When the high temperature is generated by high-frequency vibration and friction, due to the poor thermal conductivity of the plastic parts, the heat cannot be quickly dissipated in an instant, so as to gather on the contact surface of the workpiece, causing the two plastic contact surfaces to melt rapidly. The plastic parts are welded well. After curing, the pressure is removed, so that the two plastic parts are perfectly fused, and the welding strength is very strong, close to the body.
3. Several factors affecting the welding effect
The welding effect of ultrasonic plastic welding machine is mainly caused by the following three factors: (1) The amplitude of the transducer, which can control the amplitude of ultrasonic vibration to achieve the purpose of controlling the temperature; (2) Welding time . The welding time guarantees the welding effect of the two kinds of plastic parts, and the stability after welding; (3) the size of the external force. The external force is to ensure a better welding effect of the plastic parts, and the external force should not be too large, otherwise it will easily cause the plastic parts to be deformed.
4. The structure of ultrasonic plastic welding machine
Ultrasonic plastic welding machine is composed of pneumatic transmission system, control system, ultrasonic generator, transducer, horn and welding head, tooling fixture. The system can realize intelligent control, so the welding effect is operated by digital imaging technology, and the welding time and pressure time are operated to fully guarantee the final welding effect.
5. Safety of ultrasonic plastic welding machine
In addition to the better welding effect than traditional welding, the ultrasonic plastic welding machine is safe, environmentally friendly and pollution-free, which is another important feature. Traditional ordinary welding temperature is not easy to control, and it is easy to cause danger during welding operation. In addition, the light generated during welding is also easy to cause damage to the eyes. The quality of the welding effect is related to the proficiency of the operator. Therefore, it is very Difficult to control.
Ultrasonic plastic welding technology has brought the welding industry to a new level. Ultrasonic welding is used more widely, so that different plastics can be better integrated, and plastic products can be used more widely in our lives. With the continuous progress of ultrasonic plastic welding machines, it will bring more and more convenience to our lives.