Application of ultrasonic wave in rubber suction cup production

The application of ultrasonic in the rubber suction cup manufacturing industry has a certain history. In the 1960s, it was tested in the industry as a popular science project in China, and achieved certain results. Its specific application reflects two major characteristics:

First of all, the propagation of ultrasonic fluid is directional and bundled, and its velocity in the liquid reaches 5000m∕s, suitable for deep-sea exploration of fish stocks or military search for enemy underwater weapons; second, because of audio every When the frequency is increased by 1 time, the sound intensity will be increased by 10 times, so the ultrasonic ultra-high frequency rate brings high sound intensity.

Ultrasonic waves produce a short-time vacuum for liquids. When the bubble bursts, it creates a huge shock wave, which is called “cavitation.” In the rubber industry, it can be used to clean molds. The areas in which ultrasonic waves can be used in the suction cups manufacturing industry are as follows.

(1) Ultrasonic flaw detection

Ultrasonic has a strong penetrating power and can penetrate objects that cannot be penetrated by electromagnetic waves. The penetration depth can reach several tens of meters, and it can reflect at the interface or where the impurities are located. This feature can be used to detect the internal condition of the rubber suction cup, such as the presence of defects such as impurities and air. It also has the advantage of being able to accurately locate the defect location and does not constitute any damage to the quality, which is a true non-destructive test. Since the ultrasonic frequencies of water and rubber are very close, water can be selected as the test medium.

(2) Mold, metal surface cleaning

Good decontamination and rust removal.

(3) Cooperating with latex dispersion

By virtue of the bundling characteristics of the ultrasonic waves and the aforementioned “cavitation” effect, the dispersion effect in the colloidal dispersion can be fully exerted, and the entire system is in a stable micron-sized dispersion state.

(4) Carbon black particle collection

In the latter stage of carbon black production, when the ultrasonic waves contact the carbon black particles, the particles will be caused to co-polymerize. For example, the ultrasonic waves emitted by the resonance tube can collect the carbon black particles and then collect them by ultrasonic horn to replace the conventional electrostatic collection or filter bag collection. This method not only has a simple structure, but also saves costs, and can also eliminate fire hazards. By the same principle, this type of device is also suitable for dust removal in workshops where rubber suction cups are manufactured.