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Ultrasonic welding

Ultrasonic plastic welding


Ultrasonic plastic welding machine is the ultrasonic transmission through the welding head to the plastic processing parts, so that the two plastic joints because of the ultrasonic effect and produce severe friction, friction heat to melt the plastic joints to complete the glue. This technology has the advantages of high speed, strong welding seam, and more importantly, it can automate the production and processing of plastic products. Ultrasonic plastic welding machines can be plastic welding, embedding, forming, riveting, spot welding, cutting, sewing and other operations.

Work characteristics:

Fast ---- 0.01-9.99 seconds per welding time.

Strength --- can withstand large tension, high pressure.

Quality ---- no leakage, no leakage, can be gas-tight welding, welding does not hurt the plastic parts.

Economy --- without screws, glue. Reduce labor, low cost.


First, welding method:

Ultrasonic vibration at a high frequency of the welding head under moderate pressure, the friction surface of the two plastic friction heat and instant fusion bonding, welding strength can be comparable with the body, using a suitable workpiece and a reasonable interface design, can achieve watertight It is airtight and eliminates the inconvenience of using auxiliary products to achieve efficient and clean welding.

Second, rivet welding method:

Ultrasonic vibration of the ultrasonic welding head, pressing the tip of the plastic protruding project, so that the instantaneous heat fusion into a rivet shape, so that different materials, materials, mechanical riveting together.

Third, implanted:

Through the preaching of the welding head and the appropriate pressure, the metal parts (such as nuts, screws, etc.) are squeezed into the reserved plastic holes and fixed at a certain depth. After the completion, no matter whether the pulling force or the torque is comparable to the traditional mold forming, Strength, can avoid the drawbacks of injection mold damage and slow injection.

Fourth, molding:

This method is similar to the riveting method in that the concave soldering tip is pressed against the outer ring of the plastic product. After the welding head is ultrasonically vibrated, the plastic is melted and formed into a metal object to be fixed and the appearance is smooth and beautiful. This method is often used for the fixing of electronic parts and horns, and the fixation of lenses for cosmetics.

Fifth, spot welding:

A. Welding the two plastic points without welding wire in advance to achieve the purpose of welding.

B. For relatively large workpieces, it is not easy to design the welding line of the workpiece to be spot welded, and to achieve the welding effect, multiple points can be spot welded at the same time.

Sixth, cutting seal:

The use of ultrasonic vibration working principle, the chemical fiber fabric cutting, the advantages of clean incisions do not crack, not drawing.

Use range:

 Ultrasonic plastic welding machines are commonly used in the automotive industry, electronics industry, medical industry, home appliance industry, non-woven clothing, office supplies, packaging industry, toy industry and so on. Such as body plastic parts, automotive doors, automotive car instrumentation, car lights mirrors, sun visors, interior parts, filters, reflective materials, reflective spikes, bumpers, cable, motorcycle plastic filters, heat dissipation Device, 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 telephone, mobile phone accessories, mobile phone shell, battery shell, charger , Valve controlled sealed lead-acid battery, 3-inch floppy disk, U disk, SD card, CF card, USB connector, Bluetooth; Toy stationery: folder, photo album, folding box, PP hollow board, pen holder, ink cartridge, toner cartridge, Medical daily use: watches, kitchen utensils, oral liquid bottle caps, drip bottle caps, mobile phone accessories, gold soft brush, daily necessities, hygiene products, children's products, air mattresses, hangers, knife handles, garden supplies, kitchen utensils, Shower, gold brush, shower head, anti-counterfeiting bottle cap, cosmetic bottle cap, coffee pot, washing machine, air dehumidifier, electric iron, electric kettle, vacuum cleaner, speaker metal cover and earthen grille.