At present, the use of ultrasonic welding machines has become quite popular. Product packaging, cutting, riveting, embossing, punching and other industries are indispensable equipment, so various ultrasonic welding machines with various functions have emerged as the times require. Different fields have different usage methods and equipment requirements. There is a wide range of consumers in use today. Really add an explanation to these misunderstandings.
figure1：Ultrasonic welding machine
Misunderstanding of welding principle:
There are a considerable number of personnel who have been engaged in ultrasonic welding for many years. There is a misunderstanding about the transmission of ultrasonic energy. It is believed that sound waves weld on the contact surface. In fact, this is a misunderstanding. The real principle of ultrasonic welding is: after the transducer converts electrical energy into machinery, it is transmitted through the workpiece material molecules, and the sound waves The conduction sound resistance in the solid is much smaller than the sound resistance in the air. When the sound wave passes through the joint of the workpiece, the sound resistance in the gap is large, and the heat energy generated is quite large. The temperature first reaches the capacity point of the workpiece, and then a certain pressure is added to weld the seam. The other parts of the workpiece will not be welded at low temperature due to their small thermal resistance. Its principle is similar to Ohm’s law in electrical engineering.
Workpiece material errors:
Ultrasonic welding machines also have requirements for the material of the workpiece to be welded. Not all materials can be welded. Some people understand that any material can be welded. This is a big misunderstanding. Some of different materials can be welded better, some can basically melt, and some can’t melt. The melting point of the same material is the same, and it can be welded in principle, but when the melting point of the workpiece to be welded is greater than 350 ° C, it is no longer suitable for ultrasonic welding. Because the ultrasonic is to melt the molecules of the workpiece in an instant, the basis for judging is that within 3 seconds, if it cannot be welded well, other welding processes should be selected, such as hot plate welding. Generally speaking, ABS material is easy to weld, and nylon is difficult to weld.
Jiangsu Suzhou Rehow Machinery Co., Ltd. focuses on the production of ultrasonic equipment, which integrates research, design, production, marketing and service. It has a strong technical force, and constantly introduces domestic and foreign technologies, with reliable product quality and stable system. The company adopts imported raw materials and components supporting products, and has formed ultrasonic series products such as slitting machine, embossing machine, ultrasonic lace machine, ultrasonic slitting machine, ultrasonic compound machine, slitting and cross cutting machine, towel slicing machine, rag slicing machine, etc. .Integrity management, excellent equipment, the company has a complete and scientific quality management system, welcome new and old customers to consult and cooperate
Post time: May-18-2023
