Application of Ultrasonic Cleaning Technology in Surface Treatment Industry

Introduction: The surface treatment industry, such as the electroplating industry, can reduce pollution and improve efficiency if ultrasonic cleaning technology is used.

Electroplating is the use of electrolytic process, the metal or alloy deposited on the surface of the plating to form a metal plating surface treatment technology. This will certainly harm humans and the environment. For example, electroplating wastewater will be generated, which will have a large impact on the environment. Operators who have been engaged in electroplating for a long time may suffer from skin diseases, pharyngitis, and other diseases. Now some electroplating processes use non-environmental chemical raw materials, which will be used in electroplating. Chemical materials are brought into the coating and directly affect the health of the user.

How to prevent it?

Usually wearing rubber or plastic gloves, anti-acid aprons and rubber boots, anti-acid masks and protective glasses when working. The overalls should be changed and cleaned, and the body skin should be cleaned after work.

If ultrasonic cleaning technology is used, such problems can be avoided. Because the principle of the ultrasonic cleaning machine is the high-frequency oscillation signal emitted by the ultrasonic generator, it is converted into high-frequency mechanical oscillations by the transducer and propagated to the medium. The ultrasonic radiation in the cleaning solution is closely spaced and forward-radiated in the cleaning liquid, making the liquid Tens of thousands of microbubbles flow, and tiny bubbles (nucleated nucleuses) present in the liquid oscillate under the action of the sound field. When the sound pressure reaches a certain value, the bubbles rapidly grow and then abruptly close when the bubbles close. Shock waves are generated, and thousands of atmospheric pressures are generated around them, destroying insoluble dirt and dispersing them in the cleaning liquid. When the group particles are covered with oil and adhere to the surface of the cleaning part, the oil is emulsified and the solid particles are detached. In order to achieve the purpose of cleaning the surface of the cleaning parts. Due to the inherent penetrating power of ultrasonic waves, it is possible to clean a variety of surfaces with complex and shape-specific objects, which have a good cleaning effect on small holes and gaps, and have the best cleaning effect on objects that do not absorb sound or have a low sound absorption coefficient.

As such, the application of ultrasonic cleaning machines in the surface treatment industry is very advantageous:

1, the workpiece has an oxide layer and yellow rust

The traditional method is to use hydrochloric acid or sulfuric acid soak cleaning. If the ultrasonic comprehensive treatment technology is adopted, the oil and rust on the surface of the workpiece can be removed at the same time within a few minutes, and various problems caused by the strong acid cleaning can be avoided. However, the acid has a certain degree of corrosiveness. In view of this situation, Buck has adopted two solutions: one is that the tank body is made of a completely corrosion-resistant PP material, and the other is that the tank body is made of 316L stainless steel that has strong corrosion resistance. Greatly prolongs the service life of the washing machine.

2. Polishing paste polishing on the polishing surface

Under normal circumstances, the polishing paste is often blended with paraffin. The molecular weight of paraffin is large, the melting point is high, and it is a solid at room temperature. It is a substance that is difficult to clean. The traditional method is to use organic solvent cleaning or high-temperature alkaline boiling to have many drawbacks. Ultrasonic cleaning can use water-based cleaning agent. Under medium temperature conditions, the surface of the workpiece can be thoroughly cleaned in a few minutes. The commonly used technological process is: 1 soak → 2 ultrasonic cleaning → 3 city water rinsing.

3, the surface of oil and a small amount of rust cold rolled steel

The surface of the cold-rolled steel plate is generally oily, dirty, or slightly rusted. It is relatively easy to clean it. However, after the general method cleaning, a very thin layer of floating ash remains on the surface of the workpiece, which affects the quality of subsequent processing, and sometimes the strong acid may no longer be used. Soaking method to remove this layer of floating dust. The use of ultrasonic cleaning and appropriate cleaning fluid, can quickly and completely achieve a clean surface of the workpiece, and the surface of the workpiece has a high activity, and sometimes even can avoid the electroplating before the acid leaching activation process.

In summary, the use of ultrasonic cleaning machine technology, in the surface treatment industry to obtain full and efficient use. The application of ultrasonic cleaning technology can simplify many traditional cleaning processes and greatly improve cleaning quality and production efficiency. In particular, the superiority of ultrasonic cleaning of workpieces with more complex shapes and higher requirements for corners is even more obvious. The use of ultrasonic cleaning technology can also replace the role of strong acids and alkalis in a wide range, greatly reduce the environmental pollution, and improve the labor environment of workers, reduce labor intensity, and contribute to the protection of the ecological environment.