What is the poor adjustment of the ultrasonic plastic welding machine? During the operation of the ultrasonic plastic welding machine, the staff found that the descending speed is very fast and particularly heavy, causing the table to vibrate violently, as if hitting the product like a hammer, which brings a lot of operator The noise is very harmful to the body. In fact, this situation is more dangerous, and the product is very easy to damage. As a result of this phenomenon, about 80% of cases are caused by poor regulation.
At present, the technical applications of lithium batteries for energy storage are mainly around the power grid base station backup power, home optical storage systems, electric vehicles and charging stations, power tools, home office equipment and other fields. The market will take the lead in the public utility sector, penetrating from the transmission and transmission side to the user side. The data shows that the application volume of the lithium battery energy storage market in 2017 is about 5.8Gwh, and the market share of the lithium ion battery in 2018 will continue to increase steadily year by year.
The ultrasonic metal welding machine is similar to friction welding, but there are differences. The ultrasonic welding time is short and the temperature is lower than recrystallization; it is also different from pressure welding because the added static pressure is much smaller than pressure welding. Can perform spot and strip welding on thin materials such as copper, silver, chromium-nickel and other conductive metals. It can be widely used in thyristor chip leads, fuse fuse holders, electrical lead terminals, lithium ion, nickel Spot and strip welding of hydrogen and nickel-cadmium battery pole pieces. So what problems will we encounter during the welding process of the ultrasonic metal welding machine, and how can we solve these problems?
The principle of the ultrasonic welding machine is that the generator generates high-voltage and high-frequency signals. The signal is converted into high-frequency mechanical vibration by the energy conversion system, and is applied to the workpiece. The temperature of the workpiece is transmitted to the interface through friction between the molecules When the temperature reaches the melting point of the workpiece itself, the interface of the workpiece melts rapidly, and then fills the gap between the interfaces. When the vibration stops, the workpiece is cooled and shaped under a certain pressure at the same time, and perfect welding is achieved. So how to set the time of the ultrasonic welding machine? Next, I will introduce it to you by Ou Sheng.
Recently, one of our customers encountered such a problem: the ultrasonic welding using ABS material works well. Later, due to the special needs and cost of the product, the ABS material was replaced with PP material. As a result, the welding effect was not stable. . When our technicians adjusted the ultrasonic welding time during commissioning, the firmness of the product was passed, but the appearance of the product was severely crushed and deformed. As we all know, the effect of product welding, product material plays an important role. ABS material is recognized as the most suitable material for ultrasonic welding, but due to high cost or special requirements of the product, manufacturers have to use other materials instead. In response to this problem, we analyzed and compared the reasons why the ultrasonic welding of ABS and PP materials is so different.
Laser welding technology uses the heat generated by a laser beam to melt plastic contact surfaces, and then bonds thermoplastic sheets, films, or molded parts together. So can all plastics be welded with plastic laser welding machines? It can be seen that the energy of the laser beam must be absorbed by the plastic to achieve a good welding effect, so not all plastics can be laser welded. Plastics can be divided into two types: thermoset and thermoplastic. Among them, thermosetting plastics do not have repeatability and cannot be welded, and thermoplastics will melt after heating (that is, they can be heated and cooled to make them reversible), which is a so-called physical change, so they have weldability.
Some precision instruments have some plastic accessories. If you need to weld the plastic, you can use ultrasonic welding tooling. Ultrasonic welding of plastics has low cost, high efficiency, beautiful welding, and waterproof and moisture-proof. The biggest harm to the human body is noise. Ultrasonic welding uses different frequencies of vibration to generate heat at the parts to be welded to melt the plastic and apply pressure to fuse it. Then what is the working principle of the ultrasonic welding tool? Let me introduce you.
Laser welding technology is more and more widely used and plays an increasingly important role in the field of modern processing. Excellent performance advantages make laser welding the processing method of choice for many companies today. In actual processing and production, the application of lasers also includes marking and cutting. Compared with laser marking and laser cutting, laser welding is similar in principle, but their processes are completely different. Laser marking uses fiber laser marking machines in the material. Permanent marks are left on the surface. Laser cutting uses the high energy released by the laser cutting machine to quickly melt and evaporate the processing area. Laser welding of plastics uses the heat generated by the laser to melt the plastic surface contact surface, and then paste the plastic material workpieces together.