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Chemistry – Oil Splitting and Oil Emulsification – Part 1
As I have said before on this blog, I am not a chemist. Whatever I say about chemistry on the blog is expressed in layman’s terms and is based on practical experience and not on any deep understanding...
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Other Oil Removal Options
In some cases, previously described oil removal technologies based on the gravity separation of oil from the cleaning solution are unjustifiably cumbersome and expensive. Fortunately, smaller scale...
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Ultrasonics – Applying Multiple Frequencies for Maximum Benefit
As described in a preceding blog, changing ultrasonic frequency has a demonstrated effect on the size of particles removed from a contaminated surface depending on frequency. Low frequencies produce...
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Ultrasonics – Frequency vs. Exposure Time
The blog about maximizing the effect of multiple frequency ultrasonics explained in some detail the mechanics of cleaning using multiple ultrasonic frequencies and the benefits of sequencing through a...
View ArticleWhat is a “Closed Loop” cleaning system?
The ultimate “closed-loop” cleaning system would produce no effluents requiring disposal. In many manufacturing facilities, disposing of waste liquid containing chemicals and other contaminants removed...
View ArticleAutomation – Introduction
Many cleaning systems are automated. There are a number of benefits that can be realized through automation - Reduced labor cost Increased throughput Improved process consistency Reduced Labor Cost...
View ArticleAutomation – Load and Unload
This series of blogs about automation will address automation as an “add-on” or accessory to an existing or planned cleaning system. In many cleaning systems, automation, or at least partial...
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Heat Capacity and Temperature Control
How Much Heat? - It is common for the design engineer to calculate the heat requirement for the tanks of a cleaning system based on the tank volume, the target operating temperature and the desired...
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Heat Alternatives for Cleaning
I have stressed the importance of temperature to cleaning processes many times in previous blogs. This blog will discuss the heat source options for achieving and maintaining the temperatures required...
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Ultrasonic “Shadowing”
We in the ultrasonics industry have long been aware of an effect which is sometimes called “ultrasonic shadowing.” In general, this is what happens when parts being cleaned are positioned in such a...
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Heat – Definitions and Concepts
Temperature has been identified as one of the important variables in cleaning – arguably the most important. So I thought it might be worth some time to develop a little understanding of heat – –...
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Heat Conductivity and Convection
Heat conductivity is a measure of the ability of a material to transfer heat within itself. For example, if you heat one end of a short piece of copper wire, the heat is quickly distributed throughout...
View ArticleConductivity Calculations
Previous blogs have talked about heat conductivity in very general terms to produce a foundation for this somewhat more technical view for those of you who like formulas and numbers. Conductive heat...
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