How does ultrasonic clean dirt, and can ultrasonic clean? How does it work?

The high-frequency oscillation signal is converted into high-frequency mechanical oscillation (ultrasonic) by the ultrasonic transducer and propagated into the medium (cleaning liquid), and the radiation of ultrasonic waves in the cleaning solution causes the liquid to vibrate and produce tens of thousands of tiny bubbles, which are generated and grown in the negative pressure area formed by the longitudinal propagation of ultrasonic, and quickly close in the positive pressure area, in this process called cavitation effect, the instantaneous high pressure of more than 1000 atmospheres can be generated when the tiny bubbles are closed. The continuous instantaneous high pressure is like a series of small ** constantly impacting the surface of the object, which is the rapid peeling off of the dirt on the surface of the object and in the crevices, so as to achieve the purpose of cleaning the object.

As long as there is enough impact force, it's fine!

1. Cavitation principle.

The result of the interaction of high pressure and low pressure ultrasonic waves formed by high-frequency ultrasonic waves when cleaning instruments by professional ultrasonic equipment. Each of these bubbles will produce a shock wave of great energy when it bursts, and when it is in the low-pressure stage, the bubble will grow a little bit, and after reaching the high-pressure stage, it will implode due to compression. This instantaneous phenomenon of atmospheric pressure resulting from extremely high temperatures is called "cavitation".

The ultrasonic cleaning method uses the principle of "cavitation" to achieve the purpose of cleaning the equipment to wash away the contaminants on the internal and external surfaces of the goods.

2. The principle of sound energy conversion.

Hardware ultrasonic cleaning equipment is to help clean equipment pollutants by converting the ultrasonic frequency source into sound energy and then into mechanical vibration through the principle of power. Ultrasonic cleaning is very safe, and the energy generated by the implosion of thousands of bubbles per second is concentrated in a very small area for cleaning, so as to peel off dirt, and the cleaning process is very safe and effective.

In factories, hospitals or life, high-quality small ultrasonic cleaning equipment can clean a lot of things, through the combination of physical and chemical cleaning methods to produce ultrasonic cleaning methods, according to the needs of different types of instruments to set the cleaning process and process, to help the instrument remove pollutants. The reason why ultrasonic cleaning equipment can achieve such an effect is closely related to its working principle and cleaning method. It is better used in places where the surface and quality of the product are required.

The degreasing process of placing the parts adhered to the oil stain in the degreasing solution and making the degreasing process under the action of an ultrasonic field of a certain frequency is called ultrasonic degreasing. The introduction of ultrasonic waves can enhance the degreasing process, shorten the degreasing time, improve the quality of degreasing, and reduce the consumption of chemicals. In particular, it has a significant degreasing effect on complex shape parts, small precision parts, parts with difficult dirt removal on the surface and parts made of insulating materials, which can save time-consuming manual labor and prevent damage to parts.

The effect of ultrasonic degreasing is related to the shape, size, surface oil properties, solution composition, and placement of parts, so the best ultrasonic degreasing process should be determined by testing. The frequency used for ultrasonic degreasing is generally about 30kHz. part hours, using a higher frequency; When the part is large, a lower frequency is used.

Ultrasonic waves propagate in a straight line, and it is difficult to reach the shielded part, so the parts should be rotated or turned in the degreasing groove so that all parts on the surface can be irradiated by ultrasonic waves and receive better degreasing effects. In addition, the concentration and temperature of the ultrasonic degreasing solution are lower than the corresponding chemical degreasing and electrochemical degreasing, so as not to affect the propagation of ultrasonic waves, and can also reduce the corrosion of the surface of metal materials.

Ultrasonic cleaning is the use of ultrasonic cavitation, acceleration and direct flow in the liquid to directly and indirectly effect on the liquid and dirt, so that the dirt layer is dispersed, emulsified and peeled off to achieve the purpose of cleaning. To put it simply, the ultrasonic cleaner is the force generated by the vibration of the ultrasonic oscillator to remove the dirt on the surface of the workpiece by the force generated by the vibration of the ultrasonic oscillator.

Ultrasonic cleaning of household items is generally 3-5 minutes, and the time for industrial cleaning is a little longer, generally about 15-30 minutes, and the specific cleaning time still needs to be determined according to the cleaning items and the severity of the cleaning dirt.

It mainly depends on what type of ultrasonic cleaner is used.

Generally, the household ultrasonic cleaner can be cleaned in about 5 minutes.

For larger ultrasonic cleaners, the time can be selected, from 0 to 99 minutes, mainly depending on the cleaning objects and whether they need to be cleaned repeatedly.

This generally depends on the degree of oil stain of the parts you clean, and it can be cleaned in about three minutes with the ultrasonic cleaning agent of Tianyue Chemical with ultrasonic equipment.

How long does it take for an ultrasonic cleaner to be cleaned? Many people buy an ultrasonic cleaner but don't know how to control the cleaning time for the first time, in fact, there is no accurate time, which mainly depends on some factors that determine the duration of ultrasonic cleaning.

Ultrasonic power is one of the decisive factors. For example, when the ultrasonic power is relatively strong, the cleaning time can be cleaned for a long time, if it is to clean glasses, necklaces, bracelets, platinum jewelry, jewelry and other small household objects, the cleaning object is dust, oil stains and other dirt, then it is generally 3-5 minutes.

But if the items to be cleaned are relatively large and the dirt is relatively heavy, then it is more than that. Generally, the cleaning in the factory industry is 15-30 minutes. When the ultrasonic power is too weak, it is not a matter of long or short cleaning time, and it is very likely that it will not be cleaned.

In addition, the ultrasonic frequency is also a factor that determines the cleaning effect, the ultrasonic cleaning equipment between 28kHz-128kHz on the market is mainly used in the cleaning line, the cleaning time also depends on the cleaning process, if you choose the automatic ultrasonic cleaning machine to carry out the entire cleaning process, this is definitely higher than the efficiency of manual cleaning, and the cleaning cleanliness will be relatively cleaner.

However, the transducer below 40kHz is mainly used for hardware, metal and some spare parts, which are widely used in the railway industry, aerospace, ships, automobiles and other industries, and the spare parts of these industries are often thick and heavy, and the appearance is rougher, so the low-frequency transducer with relatively large strength is required, and the cleaning time is generally about 20-30 minutes. Like laboratories, medical research and other places, the cleaning objects are more precise and meticulous, the vibration intensity should not be too large, generally choose 40kHz or higher frequency ultrasonic cleaning machine, generally 5-30 minutes of cleaning time. Some precision optical parts are made of high-frequency transducers, and high-frequency ultrasonic cleaners are relatively higher than low-frequency ones.

Finally, the length of the cleaning time is also related to the cleaning agent, for those with chemical dirt, the cleaning agent needs to be added to produce a chemical reaction, so as to achieve a thorough cleaning. If the cleaning agent is not selected correctly, the ultrasonic cleaner will not be able to clean it until it is scrapped, so it is generally not necessarily the fault of the ultrasonic cleaner if it is not clean.