In our actual work process, not all plastic materials can be welded. Generally, the plastics that can be welded by ultrasonic are thermoplastics. Only thermoplastics with the same or similar molecular structure can be welded. The welding surface is between molecules. The chemical combination of the base metal, so the closer the base metal, the better the welding effect. The mold is an important part of the ultrasonic welding machine and the key to the welding of plastic workpieces. In the welding process, different molds are used according to the welding requirements.
After long-term use, the mold itself will be worn to a certain extent, which will affect the welding effect, so it needs to be replaced with a new mold. Ultrasonic molds are mainly used for plastic welding and chemical fiber cloth cutting. If the manufacturing process is not good, the mold will easily generate heat during work, large no-load current, or even cracks.
Ultrasonic welding machines have similar frequencies such as 20KHz and 40KHz. The working frequency of the welding machine is mainly determined by the mechanical resonance frequency of the sensor, the horn, and the welding head. The frequency of the generator is adjusted according to the mechanical resonance frequency to achieve consistency. The welding head is in resonance, and each part is designed as a half-wavelength resonance body.
Ningbo XiaoNeng Precision Machinery Co., Ltd is China Ultrasonic Horns Manufacturers, we are committed to the research and development and application of welding technology for industrial plastics. As a professional Ultrasonic Welding Horns factory, our products include hot plate welding machine, intelligent ultrasonic welding machine, multi head and multi station ultrasonic welding machine, hot riveter, resolver, high frequency inducer, automobile bumper punching welding machine, wholesale Ultrasonic Welding Horns etc.; and various non-standard auto parts welding equipment, vibration friction machine, ultrasonic mold and various auto parts testing equipment, air tight water tight testing equipment, inspection tools and various welding dies Production oriented enterprises.