How to select the best ultrasonic cleaning machine?Date: 2022-09-30Number: 242
Ultrasonic cleaning machine can be basically used to clean all things. They are especially useful for delicate, more complex parts that are likely to be impossible to clean by hand. Ultrasonic cleaning troughs and parts are widely used in several industries and are ideal for equipment, spray guns, jewelry, motors, print heads, tools, and pcbs-the list goes on and on.
For manufacturers, technicians and engineers, ultrasonic cleaning equipment brings great benefits, can maximize the service life of components and service life, and ensure that downtime is reduced according to effective cleaning.
How does ultrasonic cleaning work?
Ultrasonic cleaners work by using a process called cavitation. When ultrasound waves pass through a liquid, they create one million tiny cavitation bubbles. When combined with intense pressure, these bubbles stir in the liquid to remove stains, grease, rust, and other contaminants from the parts to be cleaned, providing an amazing cleaning effect.
Most items can be cleaned in ultrasonic troughs, but there are many exceptions, such as gems, some plastics and some electronic component. Before using ultrasonic cleaning equipment, it is most important to ensure that the relevant items are properly cleaned.
How to select the best ultrasonic cleaning machine?
The need for ultrasonic cleaning machines depends to a large extent on the objects to be cleaned. Before applying a suitable ultrasonic cleaning machine, the following aspects should be considered:
The size of the ultrasonic cleaner is essential to ensure that it is suitable for its primary use and suitable for the parts to be cleaned. Before selecting equipment, determine the size of the parts to be cleaned and the number of cleaning components. Even if the tool you are cleaning is small in size, if you have a large number of such tools, you will need more ultrasonic cleaning troughs.
Care should be taken about the size of the basket in which the cleaning items are placed. It is also important for the user to understand the depth of the cleaning fluid that the customer will use. The distance from the bottom of a basket to the top of a full tank of liquid. The parts need to be completely immersed in the liquid when cleaning, so making sure you can do so in the basket of your choice is essential.
What types of pollution sources are to be removed?
What are the ingredients of the product being cleaned?
How to use the parts after cleaning?
How do you define“Clean”?
Different types of components have different types of parameters, so cleaning equipment needs will vary according to the application. Whether you are removing coolant from machine parts, ink from printing rollers, or blood from surgical instruments, the intended application will also guide your choice. The user also has to adapt the cleaning solution and the frequency of ultrasonic cleaning, so mastering how to use the cleaning agent is the key.
3. Ultrasonic frequency
A generator-driven transducer forms an ultrasonic cleaner frequency in kHz. Most ultrasonic cleaning machines operate between 35 and 45 khz, making them ideal for most cleaning requirements. However, for the removal of polishing paste or abrasive such as rough cleaning, 25kHz lower frequency will be more suitable.
The smaller the frequency, the more cavitation bubbles are produced. Similarly, a relatively high frequency of ultrasonic cleaning produces smaller bubbles, which are particularly suitable for covering a finer surface. For complex electronics and soft metals, 80 to 130 khz will be the best choice.
4. Ultrasonic temperature
Many cleaning tasks can be performed more efficiently and quickly using a heating solution. Some ultrasonic cleaning machines include thermostat-controlled heaters that can be adjusted to provide a heating solution to improve the actual cleaning effect. This is likely to be particularly beneficial for applications requiring oil removal or, in particular, for process coolants.
Of concern, cleaning efficiency above 80 ° C will also be reduced, as cavitation will be inhibited beyond this temperature.
Ultrasonic cleaning solutions generally contain air that inhibits cavitation. It is also possible to run machine equipment under no load, or to use a cleaner with a degassing mode for faster results. The basic principle of the degassing mode is to open and close, allowing the bubbles to coalesce, rise to the surface and split.
In refined mode, the power of the ultrasonic cleaner is reduced by 50% to provide a softer cleaning. This is especially suitable for precision components that must be gently cleaned.
Full power mode
The full power mode allows the washer to provide the maximum of one ultrasonic power. This increased pressure and force leads to proactive cleaning of heavily contaminated items.