After ultrasonic welding, what is the reason why the product is always burnt on one side? Haobang will introduce to you, let us first understand the welding principle of ultrasonic welding machine. The ultrasonic welding machine adopts vibration welding, which is not purely linear longitudinal vibration, but forms a cross-type longitudinal downward vibration, and the energy of the ultrasonic output end of the upper mold also has a certain strength and weakness distribution point, although the air pressure, voltage, and machine determine the power output energy The stability, but the energy distribution points also show a proportional increase and decrease.

Ultrasonic welding is a high-tech technology for welding thermoplastic products. All kinds of thermoplastic parts can be processed by ultrasonic welding without adding solvents, adhesives or other auxiliary products. Its advantage is to increase productivity by multiple times, reduce costs, and improve Product quality, such as Mask breathing valve welding machine, which has been which has been bulk purchase in recent years.

If it is found that the product is always burned on one side during ultrasonic welding, it means that the output energy at this point of the upper mold corresponds to the stress formed at this point of the product. At this time, if the contact point of the ultrasonic vibration surface is changed, the burn caused by the heat energy concentration can be improved.

Another situation is that when the ultrasonic welding machine is processing curved mold products, it often burns on one side, mainly because the product is not uniformly stressed during the welding process, and the ultrasonic energy is concentrated in a certain part of the product too much. We can use the method of repairing the mold or placing PE tape between the mold and the product as a spacer. Absorb excess ultrasonic energy.

If it is an injection molded product, such as the automatic folding n95 mask machine produced by us, burns on the surface after ultrasonic welding are not only related to the material, structure and shape of the injection molded part, but may also be related to the design of the ultrasonic mold. The surface burns of the injection molded parts after ultrasonic welding, usually use PE tape to pad the ultrasonic mold and the injection molded parts, and the problem can be solved.　

Dongguan Haobang Automation Machinery Co.,Ltd is the leading face mask machine supplier in the market recent years. Our Mask breathing valve welding machine, full automatic ear band welding machine and automatic folding n95 mask machine completely replace the traditional glue bonding industry. Can be used in non woven interfacing for face masks.In the ultrasonic welding process, there is no need to connect bolts, nails, buckles, welding materials or adhesives and other material parts together. It is faster than traditional adhesives or viscose water, and the drying time is also very fast. The welding process can be easily automated and can be easily customized to suit various types of masks with specific specifications to be welded.

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