4200w Ultrasonic Welder For Automobiles Brake Light Safety Tripod 15Khz

Big Power 4200w Ultrasonic Welder for Automobiles Brake Light Safety Tripod 15Khz

Description: 

The ultrasonic welding machine is mainly composed of the following parts: a generator, a pneumatic part, a program control part, and a transducer part.

The main function of the generator is to convert the power supply of the power frequency 50HZ into a high-frequency (for example, 20KHZ) high-voltage electric wave by using an electronic circuit.

The main function of the pneumatic part is to complete the pressure, pressure and other pressure work needs during the processing.

The program control part controls the workflow of the entire machine to achieve consistent processing results.

The transducer part converts the high-voltage electric wave generated by the generator into mechanical vibration, which is transmitted, amplified, and reaches the machined surface.

Working principle of ultrasonic welding machine:

Ultrasonic processing of thermoplastic adhesives uses high-frequency friction between the working surfaces to rapidly generate heat between molecules. When this heat is enough to melt the work, the ultrasonic vibration is stopped. At this time, the joints of the workpiece are melted and solidified to complete Processing program.
The frequencies usually used for plastic processing are 20KHZ and 15KHZ, of which 20KHZ is outside of human hearing, so it is called ultrasound, but 15KHZ is still within the range of human hearing.
Convert 220V, 50KHZ into 15KHZ (or 20KHZ) high voltage electric energy, and use vibrator to convert it into mechanical energy. Such mechanical vibration is transmitted to the workpiece through the drive member and the welding head, and the air pressure is used to produce the friction effect of the working interface. The vibrator and the transmission sub-device are in the vibrating cylinder, and the welding head is connected externally. The air pressure system and the control loop are used to lift up and down under the pre-set conditions to complete the operation procedure.

Specifications:

Ultrasonic Welding influence factors:

In the actual production process, not all plastic materials can be welded. The plastics that can be laser welded are all thermoplastics. Only thermoplastics with the same or similar molecular structure can be welded. The welding surface is intermolecular chemistry. Combined, the closer the matrix material is, the better the welding effect.

We also need to consider the factors that affect the quality of the weld in order to get a better welding effect. When welding, pressure, time, and heat absorption (melting amount) are three factors that ensure the quality of welding.

1. Ultrasonic welding pressure

Appropriate pressure is applied to the welding surface, and the welding material will transition from elastic to plastic. It can also promote the mutual diffusion of molecules and squeeze out the residual air in the weld, thereby increasing the sealing performance of the welding surface.

2. Ultrasonic welding time

Have proper hot melt time and sufficient cooling time. When the thermal power is constant, there will be insufficient soldering when the time is insufficient. If the time is too long, the weldment will be deformed, the slag will overflow, and sometimes hot spots (discoloration) will appear in the non-welded parts. It must be ensured that the welded surface absorbs enough heat to reach a fully molten state to ensure sufficient diffusion and fusion between the molecules, and sufficient cooling time must be ensured to achieve sufficient strength of the weld.

Big Power 4200w Ultrasonic Welder for Automobiles Brake Light Safety Tripod 15Khz