What Products Can The Ultrasonic Welding Machine Be Used For?

What Products Can The Ultrasonic Welding Machine Be Used For?

Date:Jan 18, 2021

What products can the ultrasonic welding machine be used for?


It is mainly used for the secondary connection of thermoplastics. Compared with other traditional processes (such as gluing, electric perm or screw fastening, etc.), it has significant advantages such as high production efficiency, good welding quality, environmental protection and energy saving. Ultrasonic plastic welding equipment is widely used in medical equipment, packaging, auto parts, fishing gear and other industries, such as disposable infusion filters and plasma separation cups, ziplock bags, plastic wine bottle caps, dishwasher water wheels, plastic toys, car lights, Plastic fake bait, welding of charger shell and mobile phone strap, welding of lighter shell, etc.

Our company also produces proprietary equipment, specializing in the development and production of supporting equipment for the geotechnical and medical equipment industries. The NC series ultrasonic plastic welding machine can be used for butt welding of thermoplastics. The welding head can also be replaced according to customer needs for riveting and spot welding. Welding, embedding, cutting and other processing techniques.

Our company has been manufacturing body plastic parts for a long time, automobile doors, automobile instruments, lights and mirrors, sun visors, interior parts, filters, reflective materials, reflective road studs, bumpers, cables, plastic filters, Radiator, brake fluid tank, oil cup, water tank, fuel tank, air duct, exhaust gas purifier, tray filter plate; plastic electronics: prepaid water meter, communication equipment, cordless phone, mobile phone accessories, mobile phone case, battery case, charging Device, valve-controlled sealed maintenance lead-acid battery, 3-inch floppy disk, U disk, SD card, CF card, USB connector, Bluetooth; toys and stationery: folders, photo albums, folding boxes, PP hollow boards, pen sleeves, ink cartridges, toner cartridges ,; Medical daily use: watches, kitchenware, oral liquid bottle caps, drip bottle caps, mobile phone accessories, gold soft brushes, daily necessities, hygiene products, children's products, air mattresses, hangers, knife handles, gardening supplies, kitchenware and sanitary ware , Shower head, golden soft brush, shower head, anti-counterfeiting bottle cap, coffee maker, washing machine, air dehumidifier, electric iron, electric kettle, vacuum cleaner, speaker metal cover and civil grille, etc.

Principle of ultrasonic welding machine:

The ultrasonic energy is transmitted to the weld zone through the upper weldment. Because the weld zone, that is, the interface between the two welds, has a large acoustic resistance, local high temperature will be generated. In addition, due to the poor thermal conductivity of the plastic, it cannot be distributed in time for a while, and it gathers in the welding area, causing the contact surface of the two plastics to melt rapidly, and after a certain pressure is applied, it merges into one. When the ultrasonic stops, let the pressure continue and hold for a little time to make it solidify and shape, thus forming a strong molecular chain to achieve the purpose of welding, and the welding strength can be close to the strength of the raw material.

Application method of ultrasonic welding machine

1. Welding method:

The welding head vibrating with ultrasonic ultra-high frequency under moderate pressure makes the joint surfaces of the two plastics generate frictional heat and melt and join instantly. The welding strength is comparable to that of the main body. The use of suitable workpieces and reasonable interface design can achieve water tightness and It is airtight, and avoids the inconvenience caused by the use of auxiliary products, and realizes efficient and clean welding.

2. Riveting method:

The ultrasonic super-high-frequency vibration welding head is pressed against the protruding tip of the plastic product to instantly heat and melt into a rivet shape, so that materials of different materials are mechanically riveted together.

3. Embedding:

With the propagation of the welding head and proper pressure, metal parts (such as nuts, screws, etc.) are instantly squeezed into the reserved plastic holes, and fixed to a certain depth. After completion, regardless of the tension and torque, it can be comparable to traditional molds. Strength, can avoid the shortcomings of injection mold damage and slow injection.

4. Forming:

This method is similar to the riveting method. The concave welding head is pressed against the outer ring of the plastic product. After the welding head undergoes ultrasonic ultra-high frequency vibration, the plastic is melted into shape and covered with the metal object to fix it, and the appearance is smooth and beautiful. The methods are mostly used in the fixing and forming of electronics, speakers, and the fixing of lenses in cosmetics.

5. Spot welding:

A. There is no need to design the welding wire in advance to achieve the purpose of welding.

B. For relatively large workpieces, it is not easy to design the welding line to perform split-point welding to achieve the welding effect, which can be spot welded at multiple points at the same time.

6. Cutting and sealing:

Using the working principle of instantaneous ultrasonic vibration to cut chemical fiber fabrics, its advantages are smooth and clean without cracking or drawing.


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