I will get to the “high power” stuff in upcoming blogs but thought it would be a good idea to introduce a few more tests that are simple and require little or no specialized paraphernalia. Simple is good in my opinion especially when you are troubleshooting in a remote location or when you are working …
The last thing you want on a surface that is to be plated, painted or otherwise coated with something that needs to adhere to that surface is a film of residue that prevents that adhesion. The water break test is a simple, quick and usually non-destructive test to test for hydrophobic films. The test is …
In most manufacturing processes where metal is formed or cut, oil is used in one form or another as a lubricant. Oil and other lubricants, in order to do their job, are formulated to have very low surface tension, and, because of their low surface tension, are difficult and often impossible to control or confine. Oil spreads …
I know, there I go with the titles agan – sorry. But it fits because I thought I’d start this series off with one of the simplest tests I know for cleanliness. It’s a good example of a test that, although effective, doesn’t cost a fortune and can give some pretty meaningful results. I’m not …
Having a definition of a “clean” part and a means to quickly and effectively determine if the the criteria for cleanliness has been met is very critical to the success of any cleaning process. The problem, however, is that there are so many ways to define and detect cleanliness that the task can be a …
In this series on filtration I have not mentioned much about filter ratings other than to say that most filters are rated based on the minimum size of particles they will capture. It is important to know that a filter rated at 5 microns, for example, may not prevent the passage of all particles with a …
The most challenging applications for filtration often involve either very small particles or huge volumes of particles – sometimes both. The filtration of buffing and lapping compound residues from solution is a good example of such an application. There are a number of “specialty” filters available which may answer the needs of the more challenging applications. …
For any filter to be effective, the liquid being filtered must circulate or re-circulate through the filter in an efficient way. In a spray system, the cleaning or rinsing liquid usually returns from the filter directly to the spray head(s). This means that the liquid spray used to clean or rinse is as good as …
At first glance, plumbing a filter into a system doesn’t sound like a big deal. In fact, it really isn’t, but there are right ways and wrong ways to do it. Here are a few ideas. First, liquids should always be PUSHED, not PULLED through a filter. Most pumps used in industrial and precision cleaning …
Filters do not last forever. In the course of doing its job, a filter becomes progressively more resistant to the flow of liquid. As this happens, flow is reduced and, as we’ve mentioned before, this process may even be accelerated by the fact that the partially blocked filter retains smaller and smaller particles. The price of …
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