At the urging of several readers I have decided to, from time to time, present a little puzzle or “thinking exercise” here on the blog. Maybe it will help those of us who are advancing in age to stave off the effects of Alzheimer’s disease or, better yet, just offer something to think about on …
The movement of air is an important consideration in the design of most industrial cleaning systems. The immediate application that comes to mind is, of course, in drying. The movement of air is one of the major requirements for drying along with, of course, elevated temperature. In most cases, the need to move air in …
Recently, there has been a lot of attention directed at the new and expanding range of ultrasonic frequencies available in advanced design ultrasonic cleaning equipment. The result has been that there has been a de-emphasis on the “workhorse” frequencies that started it all, 25 and 40kHz. The fact is that the vast majority of industrial ultrasonic cleaning …
One thing I should have learned over the years is to not speculate on the outcome of experimentation. In the previous blog, I advanced some theories on how liquid and air exchange might be enhanced in cleaning blind holes by using a carefully directed jet of water. Then it was off the fish tank to verify …
I’ve always known that cleaning inside blind holes was a difficult task. In a previous blog, I demonstrated using video just how difficult it is to get liquids and/or air in and out of a blind hole. My plan was to approach the problem logically (largely based on intuition), and offer readers some solutions to …
We have discussed earlier the importance of drying in a cleaning process. Despite the several hardware options available, hot air dryers remain the “go to” in industrial cleaning processes today. Today’s blog will discuss the basic design concept of hot air dryers and how they function. The main components of hot air dryers are a …
The chemistries used in industrial cleaning processes are predominantly either dry (granular or powder) or liquid. Dry chemistries cover a wide range of density and flow characteristics. In fact, two batches of the “same” dry chemistry may have considerably different properties. Each liquid product has its own specific gravity and viscosity characteristics but may also vary in other …
In the past week or so, I have had several people walk into my office and ask a question that has been popular for as long as I can remember – – “What is the ratio of cross section to depth that defines the cleanability of a blind hole?” As is so often the case in …
Most cleaning processes are comprised of a number of discreet steps. A wash followed by one or more rinses and then a dry would be a typical cleaning process. As parts being cleaned are moved from one process step to the next, they are vulnerable to potential risks by conditions not directly related to cleaning. Whether related …
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, …
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