Heat Resistance Ultrasonic Converter For Plastic Welding Machine Sensor 2600W Ultrasonic Transducer

The working principle of the ultrasonic energy-concentrating transducer is similar to that of the cleaning transducer, but also by applying prestress to offset the expansion stress of piezoelectric ceramics to achieve large-amplitude ultrasonic vibration. Because welding transducers require high instantaneous power, they have high demands on materials and processes, and are high-power sonic super-energy devices. Usually combined with the ultrasonic horn and the working head to form a high-power, large-amplitude vibration system to complete the ultrasonic welding of plastics, metals and other materials.
Ultrasonic welding is the ultrasonic vibration generated by the transducer, which generates high-frequency friction and heat generation on the surface of the welded object contacting the gap under pressure, so as to achieve the purpose of thermal fusion welding. Ultrasonic energy-concentrating transducers are high-power ultrasonic transducers that work in gaps or pulses, and their power is generally calculated based on the instantaneous peak power.

Features of ultrasonic shaped energy transducer:
1. Low resonant impedance, high mechanical quality factor, high electro-acoustic conversion efficiency and large amplitude;
2. Low heat generation and large suitable temperature range; small performance drift and stable work;
3. Good material reliability and long life span of the transducer.

Note on the use of ultrasonic shaped energy transducer:
1. The frequency of the ultrasonic transducer, horn and tool head should be matched. Generally speaking, the frequency of the horn and tool head should be slightly lower than the frequency of the transducer; the connection surface should be vertical and flat, and the connection torque should be added. Be suitable
2. The electrode of the ultrasonic transducer should be welded reliably and covered with damping glue;
3. The operating temperature of the ultrasonic transducer should be lower than 60, and the input power should be lower than the rated power.

Ultrasonic welding uses an ultrasonic generator to convert 50/60 Hz current into 15, 20, 30 or 40 KHz electrical energy. The converted high-frequency electric energy is again converted into mechanical motion of the same frequency through the transducer, and then the mechanical motion is transmitted to the welding head through a set of horn devices that can change the amplitude. The welding head transfers the received vibration energy to the joint of the workpiece to be welded. In this area, the vibration energy is converted into heat energy by friction to melt the plastic. Ultrasound can be used not only to weld hard thermoplastics, but also to process fabrics and films. The main components of an ultrasonic welding system include ultrasonic generator, transducer/horn/welding head triple group, mold and frame. Linear vibration friction welding uses frictional heat generated on the contact surface of two workpieces to melt the plastic. Heat energy comes from a certain pressure
Next, a workpiece moves back and forth with a certain displacement or amplitude on another surface. Once the desired degree of welding is reached, the vibration will stop, and at the same time there will still be a certain amount of pressure applied to the two workpieces to cool and solidify the just welded part, thereby forming a tight bond. Orbital vibration friction welding is a method of welding using frictional heat energy. When performing orbital vibration friction welding, the upper workpiece performs orbital motion at a fixed speed-circular motion in all directions. Movement can generate heat, which makes the welding part of the two plastic parts reach the melting point. Once the plastic starts to melt, the movement stops, and the welded parts of the two workpieces will solidify and be firmly connected together. A small clamping force will cause the workman to produce minimal deformation, and workpieces with a diameter of less than 10 inches can be welded with orbital vibration friction.

 Heat Resistance Ultrasonic Converter For Plastic Welding Machine Sensor 2600W Ultrasonic Transducer