But now many people still have some wrong ideas about welding machines.

Misunderstanding of workpiece material: Ultrasonic plastic welding machine also has 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 materials can be welded better, some are basically fused, and some are not fused. 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 is to be welded When the temperature is higher than 350℃, ultrasonic welding is not suitable. Because ultrasound melts the molecules of the workpiece instantly, the judgment is based on the fact that it cannot be welded well within 3 seconds, and other welding processes, such as hot plate welding, should be selected. Generally speaking, ABS material is the easiest to weld, and nylon is the most difficult to weld.

Process misunderstanding of welding workpieces: Ultrasonic energy bursts in an instant, and the welding point should be dots or lines, and the transmission distance must be in accordance with the ultrasonic welding method. Some people think that as long as it is a plastic material, no matter how the joint surface can be welded well, this is also a misunderstanding.

When instantaneous energy is generated, the larger the joint area, the more serious the energy dispersion, the worse the welding effect, and even the failure of welding. In addition, ultrasonic waves propagate longitudinally, and the energy loss is proportional to the distance. Long-distance welding should be controlled within 6 cm. The welding line should be controlled between 30 and 80 wires, and the arm thickness of the workpiece should not be less than 2 mm, otherwise it cannot be welded well, especially for products that require airtightness.

These misunderstandings will affect your understanding of product quality and performance errors. If we want to buy a good ultrasonic welding machine, we must have some simple judgment capabilities. These capabilities are derived from the correct understanding of the ultrasonic plastic welding machine.