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Liquid motion within and around a submerged part is one of many ways of enhancing both cleaning and rising processes. In an earlier blog, The BIG Four agitation was described as one of the “big four” variables having a major impact on cleaning and rinsing. In simple terms, agitation means moving the processing liquid relative to … Continued
Look around you. Triangles are everywhere! Any structure requiring a strong and rigid construction depends on triangles to achieve that goal. Even though they might not be obvious or even seen for that matter, triangles are at work wherever strength and rigidity are important. The triangle is the only two dimensional polygon that if constructed … Continued
Preceeding blogs have discussed de-ionized or “DI” water, its benefits and its uses at some length. Today’s blog will discuss “Reverse Osmosis” water otherwise known as “RO” water. RO water is like a second cousin of de-ionized water. In the de-ionization process, potentially ALL ions are removed resulting in water that can approach the ultimate limit for pure … Continued
The surface tension of a liquid, as we have discussed earlier, is an important consideration in the selection of cleaning chemistry for a particular application but it also has relevance in several other ways as well. In earlier blogs, I have frequently referred to the importance of surface tension but haven’t really discussed what surface tension … Continued
For all I have said about drying in the preceding blogs, maybe I should have started with this one. So here we go, better late than never. Although a seemingly “no brainer,” the idea of reducing the load on the dryer by eliminating as much water as possible prior to the drying process itself remains … Continued
In reading the last couple of blogs it would be easy for the reader to come to the conclusion that the addition of heat is all that is needed to dry things. It would be nice and easy if that was the only consideration. The fact is that evaporative cooling is working against us in … Continued
In the preceding blog, we learned that relative humidity of air is affected by temperature. Although I really didn’t say it, I’m sure readers have come to the conclusion that lower relative humidity will result in air which is “hungry” for water. Air that is at a low relative humidity, then, is beneficial to drying. … Continued
I first talked about drying a long time ago in the blog called “Don’t Forget Drying.” In that blog, I stressed the importance of drying as a part of the cleaning process. In some cases, changes in the cleaning process can affect drying but, for now, let’s just concentrate on drying. Drying simply means removing liquid … Continued
Dimensions of orifices and typical contaminant scenarios were discussed in preceding blogs. Today, let’s consider the role of ultrasonics in removing contaminants from orifices. First, we’ll consider the “classic” orifice consisting of a passageway through a solid. Then we’ll talk about some special cases which can have an impact on the ability of ultrasonics and … Continued
A few days ago, one of our customers asked one of our sales people what would seem like a very simple question. The question, in paraphrase, was – – “Do you know the relationship between ultrasonic frequency and the ability of ultrasonics to clean within a certain sized orifice.” Being a bit rushed when I received … Continued