Until recently, I was only able to theorize about the mechanism involved in the perforation of aluminum foil by ultrasonic cavitation. I no longer have to theorize! My theory had always been that perforation of aluminum foil was due to the repeated flexing of aluminum foil as cavitation implosions occurring on opposite sides of the foil …
Process testing in a cleaning laboratory is a typical and useful step in the development of an industrial cleaning process. In most cases, test cleaning is performed in laboratories maintained by the suppliers of cleaning equipment and/or cleaning chemistries. The goal of lab testing, of course, is to simulate a cleaning process to determine its effectiveness …
Preceding blogs have described oil removal techniques for industrial cleaning in some detail. It would be nice if this was always a simple consideration – but it is not! The case for using an oil coalescer is pretty clear cut as long as the cleaning chemistry is truly a “splitter” AND, THE OIL IS NOT WATER SOLUBLE. …
When everything is going well and final inspectors are finding nothing but acceptably clean parts, cleaning can be a pretty boring part of the overall production process. As soon as a dirty part shows up, however, it seems that cleaning becomes the focus in the investigation to find out what’s gone wrong. It is automatically …
We all know that an ounce is a unit of weight, right? There are 16 ounces in a pound, 2,000 pounds in a ton and so on. However, in another convention, there are 8 ounces in a cup, 16 ounces in a pint, 32 ounces in a quart, 128 ounces in gallon, etc. In fact, …
The preceeding blog discussed what is probably the “granddaddy” of all cleaning challenges – burned-on carbon. But, as those of us who have been in the cleaning business since Noah launched the ark know, there are a bunch of other cleaning challenges that defy modern technology. In general, these challenges fall into a small group …
The technology of parts cleaning is a very sophisticated science today. Most cleaning challenges can be met with the proper combination of equipment, chemistry and technique. In my 45 year involvement with parts cleaning, I have seen many twists and turns along the way. Applications that were considered “impossible” 10 or 20 years ago are …
Although, fortunately, we seldom encounter flammability issues in cleaning, it’s a good idea to be familiar with some of the terms like Upper and Lower Flammability and Explosive Limits for the sake of safety. In the preceding blog, it was explained that three things were needed to produce a fire – Fuel, Oxidizer, and a …
Filters used to filter air, water and chemicals in industrial processes can cost thousands of dollars and more. Some filters are intended to be renewable by cleaning. Other filters, even some considered “disposable,” can be recovered for re-use using ultrasonic cleaning techniques. A filter, as we discussed in earlier blogs (search “filter”) is a device …
This blog is in response to recently received reader questions regarding the best designs for baskets and fixtures used in ultrasonic cleaning applications. The blog Reader Questions – Baskets for Ultrasonic Cleaning addressed previous questions. Today’s question concerns the use of metallic fasteners in the construction of baskets and fixtures to hold parts for ultrasonic cleaning. The …
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