Ultrasonics – Cleaning Orifices with Ultrasonics

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 …

Cleaning Chemistry – Introduction – Solvents

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.  …

Washing Clothes With Ultrasonics

Blackstone Ultrasonics was founded in the mid 1950’s in the hope that the addition of ultrasonic agitation to a conventional clothes washer would revolutionize laundering of fabrics.  It didn’t take long before it was recognized that ultrasonic techniques weren’t going to be effective – at least not by simply adding ultrasonic transducers to a conventional …

Cleaning at Home – Dishwashing

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 …

What Makes A Cleaning Requirement Challenging?

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 …

Spray Under Immersion – Like a Jacuzzi!

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 …

Water – DI vs. RO

Preceeding blogs have described two ways of reducing the ionic content of water for use in washing and rinsing applications.  Although both reduce ionic content, the process commonly called “De-Ionization” uses a treated resin to capture ions while the “Reverse Osmosis” process uses a semi-permeable membrane.  Choosing between the two in the design of a cleaning process …