How ultrasound removes dirt

The cleaning principle of ultrasonic cleaning machine is the high-frequency oscillation signal sent by the ultrasonic generator, which is converted into high-frequency mechanical oscillation by the transducer and propagated into the medium cleaning solvent, and the ultrasonic wave radiates forward in the dense phase in the cleaning liquid, so that the liquid flows and produces tens of thousands of tiny bubbles with a diameter of 50-500 m, and the tiny bubbles existing in the liquid vibrate under the action of the sound field. These bubbles form and grow in the negative pressure area where the ultrasonic wave propagates longitudinally, while in the positive pressure area, when the sound pressure reaches a certain value, the bubble increases rapidly and then closes abruptly. And when the bubble closes, a shock wave is generated, thousands of atmospheres are generated around it, destroying the insoluble dirt and dispersing them in the cleaning solution, when the group particles are wrapped in oil and adhere to the surface of the cleaning parts, the oil is emulsified, and the solid particles are separated, so as to achieve the purpose of cleaning parts purification.

In this process called "cavitation" effect, the bubble closure can form several high temperatures and more than 1000 air pressures of instantaneous high pressure, and the continuous generation of instantaneous high pressure is like a series of small "**" constantly impacting the surface of the object, so that the surface of the object and the dirt in the crevices are quickly peeled off, so as to achieve the purpose of cleaning and purifying the surface of the object.

Ningbo Exel electroplating environmental protection equipment: specializing in the production of ultrasonic cleaning 0574-88225648

Induces a resonance of stains for easy removal.

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.

How long does it take for an ultrasonic cleaner to clean things? Many people don't know how to control this cleaning 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 object to be cleaned is relatively large and the dirt is relatively heavy, it will be 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 depends on the cleaning process, if you choose the automatic ultrasonic cleaning machine to carry out the entire cleaning process, it is also a long-term feasible method, which is definitely higher than the efficiency of manual cleaning, and the cleaning cleanliness will be relatively cleaner. 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 rough, so the low-frequency transducer with relatively large strength is needed, and the cleaning time is generally about 20-30 minutes. Some precision optical parts are made of high-frequency transducers, and high-frequency ultrasonic cleaners are relatively higher than low-frequency ones.

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.

Moreover, the length of cleaning time is also related to the cleaning agent, for some chemical dirt, it is necessary to add cleaning agent to produce a chemical reaction, so as to achieve thorough cleaning, if the cleaning agent is not selected correctly, the ultrasonic cleaning machine can not be cleaned when it is scrapped. Therefore, it is generally not the fault of the ultrasonic cleaner that the cleaning is not clean, after all, the ultrasonic cleaner only plays a physical cleaning role.

Finally, the thickness of the dirt of the cleaning object itself, the heavy one will generally take longer than the shallow dirt cleaning time. However, the cleaning time is not as long as possible, if the cleaning time is too long, it is necessary to consider whether the cleaning equipment is selected wrong.

Yes the first point, the cleaning is fast and effective.

In any high-performance processing and cleaning process, consumers are more concerned about the uniformity and thoroughness of cleaning. At present, the corresponding process principle of the reputable ultrasonic cleaning machine of the manufacturer is more mature, through the conduction reaction of sound waves in the medium and the corresponding treatment effect, the pollutants on the surface of the medium can be effectively removed and removed, and due to the high-frequency mode of accurate coverage to every corner of the item, the quality of its cleaning is more balanced, and the cleaning efficiency can also be improved in this way.

Second, non-contact cleaning does not affect the surface of the workpiece.

In the production process of some items with stricter detail standards, the cleaning itself should avoid the impact of contact with the items, so the ultrasonic cleaner that is easy to operate at present realizes a more thorough cleaning mode of the analytical chamber, and realizes the cleaning of pollutants through the best method of its solution. With this non-contact cleaning method, every corner of the item is cleaned and safe to use, and the impact of contact and the deformation of the workpiece can be avoided.

Yes, the ultrasonic cleaning equipment is recognized by all walks of life as the most efficient and successful cleaning machine, and the ultrasonic cleaning equipment is more popular with customers. Whether it is difficult to clean, or there are many dead ends, not easy to clean spare parts, as long as it is completed in accordance with the correct operation sequence and method, ultrasonic cleaning equipment can give you a new look of accessories, ultrasonic cleaning equipment can completely replace manual and other cleaning methods to complete some difficult cleaning work.

Yes, the deep ultra-clean cleaning machine I bought works very well.

The ultrasonic cleaning efficiency is more than 98%, while the cleaning efficiency of traditional manual cleaning and organic solvent is only 60%-70%, and the cleaning efficiency of gas phase cleaning and high-pressure water jet cleaning is also lower than 90.

It should be 25kHz, right? This should be the standard of cleaning there in particular, and the cleaning machine does not use any parameters that can be very intuitive.

Very good, very professional product with a lot of space.

What is the difference between ultrasonic and electrical pulse descaling? Our factory uses electric pulse descaling, when the original heart day source was introduced, it was said that it was to change the crystal structure of calcium and magnesium ions with electric pulses, so as to prevent the generation of scale, the effect of this use is OK, is there any specific case of this electric pulse?

Another use of ultrasound haha.

1. The cleaning principle of ultrasonic.

Ultrasonic waves have strong penetration and good directionality, and their concentrated sound energy can travel long distances in water. The working principle of ultrasonic cleaning equipment is to convert the sound energy of ultrasonic waves in the liquid into mechanical vibration through the transducer, and radiate the ultrasonic waves in the cleaning tank to the cleaning agent, so that the liquid produces microbubbles that maintain vibration, so that the dirt cannot be attached to the surface of the cleaning parts and peeled off.

Second, the "cavitation" principle of ultrasonic cleaning.

When the pressure of the sound wave propagating in the liquid reaches a certain air pressure, the peak can reach a vacuum or negative pressure, and the force generated will tear the liquid molecules into a cavity close to a vacuum, and the strong impact generated when the cavity breaks will hit the dirt on the surface of the object. This shockwave phenomenon caused by the bursting of countless tiny cavitation bubbles is called "cavitation". The higher the power density of the ultrasonic, the stronger the "cavitation" effect, the faster the speed, and the better the cleaning effect.

However, the use of high power density for a long time to clean objects with high precision and surface finish will cause "cavitation" corrosion on the surface of the object.

3. The reaction principle of the cleaning agent.

The cleaning agents used in ultrasonic cleaning equipment are divided into chemical cleaning agents and water-based cleaning agents. Chemical cleaning agents mainly cause the dirt to peel off through the chemical reaction between the ingredients in the cleaning agent and the dirt. Water-based cleaning agents remove oil and grease through wetting, penetration, emulsification, and compatibilization.

Ultrasonic cleaning is to use the direct and indirect effects of ultrasonic waves on liquids and dirt by cavitation, acceleration and direct flow in the liquid, so that the dirt layer is dispersed, emulsified and peeled off to achieve the purpose of cleaning.

Ultrasonic cleaning is the use of the principle of high-pressure blasting, so as to achieve the purpose of cleaning.

Ultrasonic cleaning technology is favored by enterprise users due to the advantages of thorough cleaning, batch cleaning, fast cleaning, reduced manpower, energy saving and environmental protection, and ultrasonic cleaning equipment is also widely used in all walks of life.

Ultrasonic cleaning can be divided into ultrasonic wet cleaning and ultrasonic dry cleaning, and there are certain differences in the working principles of the two.

Ultrasonic wet cleaning: It can be divided into high-frequency ultrasonic wet cleaning and low-frequency ultrasonic wet cleaning.

The working principle of high-frequency ultrasonic wet cleaning is that the ultrasonic propagation vibration is repeatedly rubbed on the surface to be cleaned, so that the dirt is separated from the surface and integrated into the cleaning solution, and finally the cleaning is completed. This is also the most commonly used ultrasonic cleaning equipment at present.

The working principle of low-frequency ultrasonic wet cleaning is to use the cavitation effect, when the ultrasonic wave propagates in the liquid, the liquid will be in a negative pressure state, when the negative pressure is greater than the strength of the liquid, the air dissolved in the liquid will precipitate in the form of cavitation nucleus, and form a cavitation bubble with a diameter of several microns to close and burst in the gap, and repeatedly impact the joint part of the dirt and the surface to be cleaned by generating sound pressure and sound flow, and finally make the dirt flush into the cleaning solution to complete the cleaning.

Ultrasonic dry cleaning: High-speed air flow and ultrasonic waves work together to clean ultra-precise workpiece contaminants.

The working principle of ultrasonic dry cleaning is through the air circulation system, cleaning parts transmission system, and ultrasonic system, the high-speed air flow and ultrasonic wave work together to make the dirt particles out of suspension, and the ultrasonic reflection will drive the particles up, suck them up and separate them by the vacuum adsorption chamber of the cleaning head, and finally complete the cleaning.

It is worth noting that ultrasonic dry cleaning is often used in the high-precision cleaning industry.