Previous blogs have discussed the importance of rinsing as part of the overall cleaning process. Because of its importance, many schemes have been devised to assure that parts are adequately rinsed after cleaning. Most of these schemes embrace the “more is better” concept which often leads to overkill as there is often no practical way …
Note – The following blog is adapted from a paper recently written by Timothy Piazza, President of Blackstone-NEY ultrasonics and is re-printed here with his permission. This would probably be a good time to mention that guest blogs or suggestions for blog topics are always welcome. My email is jfuchs@ctgclean.com. FJF Blackstone~NEY Ultrasonics – Sweep …
I have spent considerable time on the blog disclosing and discussing a variety of cleanliness testing methods. A couple of tests that escaped earlier discussion, however, are the “white glove” test and the closely-related “swab” test. These tests are conducted by rubbing or wiping a surface using a white (usually cotton) glove or a cotton …
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. …
In the blogs Chemistry – Oil Splitting and Oil Emulsification – Part 1 and Chemistry – Oil Splitting and Oil Emulsification – Part 2, I discussed how oils are removed from parts using chemistry that either splits or emulsifies the oil. The next step is to collect and get rid of or recycle that removed oil. This …
“Splitting” of oil from a surface as described in a preceding blog is a part of nearly any oil removal process. Note – Even cleaning chemistry that is generally classified as an “emulsifier” has ingredients to promote the initial “splitting” of the oil from the surface being cleaned. These ingredients are often called “surface active …
When in the quest for six sigma performance it never hurts to have a little “head room” in the process. In simple terms, this means that the equipment used should not be “maxed out” to achieve the desired result. I’m sure that none of us would be comfortable if we had to keep the accelerator …
“Electropolishing,” (often shortened to E-P) is a term frequently heard in cleaning circles. Electropolishing of surfaces of cleaning equipment is employed to provide enhanced cosmetic appearance and, more importantly, to enhance their functionality. What is Electropolishing? – Electropolishing is a lot like electroplating except in reverse. In electropolishing, metal is removed rather than added as …
I have written before that there are four major variables we consider in cleaning – – Time, Temperature, Chemistry and Agitation. Based on some recent feedback from the field, however, I guess I need to provide a little more emphasis on the benefits and definition of agitation as it relates specifically to ultrasonic cleaning processes. …
In order to achieve six sigma results, one must evaluate, measure and statistically control ALL phases of the cleaning process. A typical cleaning process is comprised of three main stages – – washing, rinsing and drying. Each of these must be addressed and controlled separately as any one of the three being out of control …
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