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Ultrasonic welding has significant advantages in the packaging industry

Release time:2019-09-12

Ultrasonic welding is widely used in our daily lives, especially in the packaging industry. To understand the application of ultrasonic welding in the packaging industry, it is necessary to first understand the working principle of ultrasonic welding machines:

The ultrasonic plastic welding machine transfers ultrasonic energy to the welding area through the upper welding piece. Due to the high sound resistance at the interface between the two welding areas, local high temperatures are generated. Due to the poor thermal conductivity of plastics, they cannot dissipate in a timely manner and accumulate in the welding area, causing the contact surface of the two plastics to quickly melt. After adding a certain amount of pressure, they merge into one. After the ultrasound stops working, let the pressure continue for a certain amount of holding time to solidify and form a strong molecular chain, achieving the purpose of welding. The welding strength can be close to the strength of the raw material itself.

Therefore, the application of ultrasonic welding is very extensive. Today, we will introduce the significant advantages of ultrasonic welding in the packaging industry:

1. Greatly reducing processing time, the bonding between plastics can be completed within a few milliseconds;

2. Ultrasonic energy is only consumed in the precise area that needs to be welded, which is efficient and energy-saving;

3. Sealed welding can be carried out through dirt (such as liquid, grease, powder, etc.) without affecting the welding effect;

4. Ultrasound equipment and its components are easy to use in automated environments and compatible with boring conveying systems;

5. Using ultrasonic waves for processing, the process is clean, stable, and reliable. And the energy consumption is low;

6. No need to use safe and easily polluting auxiliary products, such as adhesives, fasteners, or adhesives, the processed packaging is environmentally friendly and renewable;

7. By using welding units, non-standard welding equipment can be designed for different products according to customer requirements.

Not only in the packaging industry, but also in the electronics industry, ultrasonic welding is widely used, mainly in the following two categories:

Electronic products: computer keyboard, battery, computer casing, computer decorative strip, data cable, LCD display screen, mouse, MP3 player.

Communication equipment: mobile phone board, telephone microphone, mobile phone antenna, mobile phone case, charger, power supply case.

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