This blog explores some common mistakes made in the application of de-ionization hardware. Although a properly engineered and installed de-ionization system will prevent these potential mistakes at the start, post-installation modifications by those less knowledgeable about de-ionizing technology don’t always respect good design practices. Temperature Limits – In general, de-ionization systems are not intended to …
There are many ways to de-ionize water. Some are small and simple while others are large and complex. The method used is determined by the volume of de-ionized water required and the desired purity. This blog will explore some of the de-ionizing means used in facilities with typical needs for parts cleaning applications. Removal of …
Next to water filtration and “softening,” de-ionization is probably the next most common water treatment. Ions in water interfere with many cleaning processes and cause water spots on drying after rinsing. The common measure of the amount of ions in water is “resistivity.” The more “resistive” water is, the less ions it contains. Water from a municipal …
The word “passivation” is one that is thrown around quite a bit in the metal finishing and cleaning world and seems to have a world of different meanings to different people. Although the word passivation is normally associated with stainless steel, there are several other metals that can be “passivated” in one way or another. …
Pressure regulating valves were discussed in the preceding blog Valves – Pressure Reducing Valves. Pressure reducing valves, although commonly used where pressure is an issue, are not always the best alternative. The pressure reducing valve has a close cousin called a “Back Pressure Regulating Valve” which monitors and controls pressure in a similar but different …
Previous blogs have suggested the use of liquid sprays in air as either a primary mechanism or as an enhancement to both cleaning and rinsing operations. Today’s blog will discuss, briefly, what is important in choosing a spray nozzle or nozzles for a particular application. In order for spray to be effective, of course, the …
It is no secret that good cleaning followed by poor rinsing can be worse than not rinsing (or cleaning) at all. A single-use rinse using a fresh water spray or a high flow rate or single use immersion rinse are often thought to provide the ultimate rinse. These options, however, are often extremely expensive because they consume …
Providing the best and most efficient rinse in an aqueous cleaning process requires maintaining the cleanest possible water in the rinse. In spray rinses, this can be accomplished by using fresh water for the spray. A spray rinse with fresh water, although effective, is often not practical. Using a constant supply of fresh water is costly, especially if …
Rust is a potential problem whenever ferrous parts are being cleaned. There are several options available to prevent or eliminate rusting both during and after the parts cleaning process. Steel will rust if it is exposed to oxygen and moisture as discussed in the blog Some Things You Should Know About Rust. Although iron oxide (rust) gets …
Rinsing as it applies to aqueous parts cleaning is a final “cleaning” step which removes residues introduced by or resulting from the primary cleaning process. There are several options to choose from when it comes to rinsing. Making the proper selection is very important to the overall cleaning process as the final rinse inevitably defines overall cleanliness. …
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