High-frequency vibrations Ultrasonic welding horn thermoplastic materials welding

High-frequency vibrations Ultrasonic welding horn thermoplastic materials welding

Introduction:

How does an Ultrasonic welder work? An Ultrasonic welder is a machine that uses kinetic energy from vibrations to heat and melt plastic together. The basic process comes down to a vibration frequency, measured in hertz, directing energy onto a section of the 2 parts you want to weld together.

The parts that are being welded are placed between the nest (commonly known as the anvil) and the sonotrode (commonly known as the horn). Both the horn and the nest is usually made from aluminium or titanium. The sonotrode is the connected to a transducer which emits the acoustic vibration. This vibration flows from the transducer, down the horn, and onto the part that is being welded. The frequency of the vibration can range from 15kHz all the way up to 70kHz.

The part design is usually critically. That part that contacts the horn, usually has a triangular lip that is protruding from the face that is being welded. The other part, that is contact with the nest, is held still and has a small groove that meets the protruding lip on the other part. The energy is concentrated into this lip, which is then heated and melted by the vibrations, and at a certain point this lips’ structure collapses and fills the groove with molten plastic.

Therefore, the ultrasonic horn is the part that directly works with the weldment, and the design of the ultrasonic hornaffects the welding effect of the weldment. At the same time, the ultrasonic horn also belongs to the consumables in the entire welding system. Generally, the transducer and the ultrasonic power supply can work for 5 to 10 years, but the ultrasonic horns is available for several months to several years according to different working conditions.

Applications:

Consumer products, automotive components, medical devices and most all industries utilize Ultrasonics. Metal inserts may be secured in plastic and dissimilar materials can often be bonded with proper tooling design. Ultrasonic horns come in a variety of shapes and designs, but all must be tuned to a specific operating frequency; the most common being 15 kHz, 20 kHz, and 40 kHz.

Ultrasonic welding utilizes high frequency, vertical motion to produce heat and the flow of thermoplastic material at the interface of mated parts. Pressure is maintained after the delivery of energy is stopped to allow re-solidification of interwoven plastic at the joint, securing the parts with a homogeneous or mechanical bond. This process offers an environmentally friendly means of assembly as opposed to conventional adhesives or mechanical fasteners.^[9]

Parameter:

Why RPS-SONIC HORN:

1. Every horn will be designed by FEA system , so that to confirm theEnd face of the ultrasonic horn with uniform force

2. All ultrasonic horns with three months warranty.

3. Specialized in high power ultrasonic for more than ten years

4. Every ultrasonic hornwith 24hours old testing before shipment.

5. Good packing, no packing problem during the 10 years exporting business.

6. Every customer will get purchase records and there are certain rewards after accumulation

Service and shipment

• Warranty one year for transducer.
• You can contact us for technical inquiry any time.
• We supply OEM service for oversea customer, also will keep Confidentiality for our customers.
• We supply customized products service for small quantity also.
• Shipment by FED-EX /DHL/UPS/TNT