Selection And Use Of Ultrasonic Horn Ultrasonic Welding Head And Lower Die

When plastic parts are processed by ultrasonic welding, inlay, riveting and edge inlay, the selection and use of horn and welding head is a very important factor. The processing quality of plastic parts largely depends on whether the amplitude of horn and welding head is appropriate, and whether it matches the electroacoustic performance of transducer.

1. Occasions where the amplitude needs to be increased

1.1 insufficient energy during welding, resulting in poor welding effect;

1.2 the welding time is too long;

1.3 during riveting, melting occurs at the bottom of the plastic pin rather than at the top.

2. Occasions where the amplitude needs to be reduced

2.1 overload always occurs when starting welding or tuning;

2.2 when the air pressure increases, the ultrasonic welder machine is prone to failure;

2.3 during tuning, the pointer of load indicator shall not drop below 20%;

2.4 plastic parts or metal inserts are damaged.

The function of the ultrasonic welding head is to transfer ultrasonic energy and couple it to the plastic parts to be welded or processed. Under the joint action of the lower die, the ultrasonic processing of plastic parts can be completed. The ultrasonic welding head and lower die shall be designed separately according to the different requirements of plastic parts, and their shapes are diverse. The company will be responsible for designing and manufacturing the required welding head and lower die for users, as well as the ultrasonic horn with special variable ratio