An ultrasonic cleaner is a metal container that has ceramic piezo transducers attached to the side or the bottom of the tank. These transducers convert one form of energy to another. They also change size when an electrical signal excites it. When the transducer is excited it increases in size and causes the side or the bottom of the container to move.
When an electrical generator emits a high frequency signal, the transducer offsets rarefaction and compression waves in the liquid. With this rarefaction cycle, the liquid is torn apart. Consequently a vacuum cavity is created in the liquid. The cavities fluctuate in size, but when the cavity reaches a certain size, it cannot retain its shape. When this happens, the cavity collapses, creating an extremely high temperature of 5,000 degrees Celsius (9,032 degrees Fahrenheit), and a jet of plasma hits the object in the container. Millions of these bubbles are created and collapsed every second.
These bubbles are what clean the object in the tank. The jet of plasma that hits the object causes the dirt to come off, and can be increased by adding a cleaning agent to the tank.
Now that you know how an ultrasonic cleaner works, here are a few tips to get you started:
- Make sure you always use a basket to clean your items. Never put them on the bottom without one.
- Choose the right type of ultrasonic cleaner. There are many types out there. They can range from jewelry cleaners to laboratory equipment.
- Find the right ultrasonic cleaner solution before you begin. You can choose from general purpose solutions, industrial strength solutions, electronic solutions, and many others. Many ultrasonic cleaners should be used with water. When cleaning circuit boards, distilled or dionized water should be used. But if you’re using the cleaner for other applications, like dentistry, tap water is fine.
- Used water or cleaner solution should be treated with 10% bleach before being disposed.
Check out All-Spec’s collection of Branson ultrasonic products here.
Branson is known for their ultrasonic cleaners. Visit our Squidoo lens for more information about Branson ultrasonic cleaners.
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I am experiencing staining of 316 stainless steel parts in my Branson B851DTH cleaner. The metal turns a smoky brown and increases with successive cleanings. I have had the parts tested and they all test for 316 stainless. Any ideas what might be causing this problem? I am at an impasse any assistance would be appreciated.
MDAV,
We’ve tried to e-mail you with some possible solutions but your e-mail bounced back. If you still need assistance, you can e-mail Neil at neilc@all-spec.com.
He’d be more than willing to help you.
Hello,
I noticed the Branson ultrasonic cleaners on the All-spec web page which perked my curiosity into the methods used for cleaning precision parts. From what I have read so far, it seems as though I would want to go with a semi-aqueous solution, but being a novice in this area I am unsure.
Could you advice me on what cleaning solution would be best at removing uncured encapsulant and underfill from both stainless steel and nylon 66 plastic. These parts would need to be cleaned together without being damage.
Any help would be appreciated,
Atticus White
Process Engineer
Datakey Electronics Inc.
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