Ultrasonic plastic welding machine information introduction

The ultrasonic plastic welding machine is the ultrasonic plastic welding equipment in the field of plastic welding research and development design of welding equipment, the industry referred to as ultrasonic plastic welding machine. Ultrasonic welding equipment is a high-tech technology for fusing cooked plastic products, all kinds of cooked plastic parts can be treated with ultrasonic welding when welding plastic products, neither add any adhesive, filler, or solvent nor consume a large amount of heat source, with the advantages of easy operation, fast welding speed, high welding strength, high production efficiency. Therefore, ultrasonic welding technology is more and more widely used.

Here is the content list:

l Working Principle

l Scope of application

Working Principle

When the ultrasonic wave acts on the thermoplastic plastic contact surface, it will produce tens of thousands of high-frequency vibrations per second, which reaches a certain amplitude of high-frequency vibration, through the upper welding parts to transmit ultrasonic energy to the welding area, due to the welding area that is the intersection of the two welding acoustic resistance, so it will produce local high temperature. And because of the poor thermal conductivity of plastic, a moment can not be timely distributed, gathered in the welding area, resulting in the rapid melting of the contact surface of the two plastics, coupled with a certain pressure, so that the fusion into one. When the ultrasonic waves stop working, let the pressure last for a few seconds, so that it solidifies and forms a strong molecular chain, to achieve the purpose of welding, welding strength can be close to the strength of the raw material. Ultrasonic plastic welding depends on three factors: the amplitude of the transducer head, the added pressure and the welding time, etc. The welding time and the pressure of the head can be adjusted, and the amplitude is determined by the transducer and the variable amplitude rod. These three quantities interact with a suitable value, the energy exceeds the appropriate value, the amount of plastic melting is large, the weld is easy to deform; if the energy is small, it is not easy to weld firmly, the added pressure can not be too large. This optimal pressure is the product of the edge length of the welded part and the best pressure per 1mm of the edge.

Scope of application

Ultrasonic plastic welding machine is commonly used in the automotive industry, electronics industry, medical industry, home appliance industry, cloth-free clothing, office supplies, packaging industry, toy industry, such as body plastic parts, car doors, car instrumentation, lights car mirrors, sun visors, interior parts, filters, reflective materials, reflective road studs, bumpers, lasso, plastic filters for motorcycles, radiators, brake fluid tanks, oil cups; Plastic electronics: prepaid water meters and meters, communication equipment, cordless phones, cell phone accessories, cell phone cases, battery cases, chargers, valve-regulated sealed maintenance lead-acid batteries, 3-inch floppy disks, USB flash drives, SD cards, CF cards, USB connectors; Bluetooth; toys and stationery: folders, albums, folding boxes, PP hollow boards, pen sets, ink cartridges, toner cartridges; Medical daily use: watches, kitchenware, oral liquid bottle cap, drip bottle cap, cell phone trim, gold soft brush, daily necessities, hygiene products, children's products, air mattress, clothes hanger, knife handle, gardening supplies, cabinet sanitary ware, shower, gold soft brush, shower head, anti-counterfeit bottle cap, cosmetic bottle cap, coffee pot, washing machine, air dehumidifier, electric iron, electric kettle, vacuum cleaner, speaker metal face cover and civil grille, etc.

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