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 …
The preceding post defined two dimensions of concern when considering cleaning orifices. Before moving on, let’s now consider how the various types of contamination that might be found in an orifice and how each affects the cleaning task. Liquids – Liquids are common contaminants in orifices. Liquid contamination can result from manufacturing operations but also …
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 …
As a leading ultrasonic manufacturer, we are often asked to manufacture large, industrial ultrasonic cleaning systems producing a particular ultrasonic power density based on laboratory trials. In fact, it may not be appropriate to base the watts per gallon requirement for a large industrial application on those found effective on a laboratory scale. A paper at the following …
Solvents are a bit difficult to understand for a number of reasons. Even for someone who has worked with solvents as much as I have, the permutations of solvents, their combinations and their capabilities are bewildering. But, let’s start with the simple stuff. A solvent dissolves what is called a solute. In what is probably the …
It doesn’t matter if you call it soap, solvent, surface preparation, or whatever, chemistry is an important part of nearly every cleaning process. The first purpose of the chemistry in a cleaning application is to either dissolve the contaminant or, using some other mechanism, to break the attachment that the contaminant has to the substrate. …
Gee Whiz! I was sure somebody would challenge me on the last blog about washing dishes at home. But, since there are no comments (or fire bombs) in my inbox, I guess everybody agrees that the most efficient way to wash dishes at home is the “old fashioned” way with a dish rag and dish drainer. …
Water, the “universal” solvent is the center of most cleaning applications in the home. Water, at least in my location in the US, is readily available, plentiful and relatively inexpensive. Water plus a small amount of overly expensive and competitively merchandised chemicals does an admirable job of cleaning dishes and clothes which constitute about 50% of …
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 …
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 …
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