As discussed earlier, monitoring variables in a process is a critical part of Six Sigma. The following are some examples of parameters that can be monitored in a cleaning process and some suggestions regarding how the monitoring can be done. Chemical Concentration – Chemistry (detergent, acid, rinse aid, etc.) is one of the most important components of the …
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 …
When parts aren’t coming clean two of the first things most process engineers target as potential problems are the temperature and concentration of the chemistry. These are, in most cases, good bets but one should resist knee-jerk reactions. Chemical Concentration – One of the common knee-jerk reactions to a cleaning problem is to increase chemical …
In the preceding blog I indicated that liquid in process tanks can be heated by the effects of ultrasonics and pumping as well as by surface-mounted or immersion heaters. The fact is that some process tanks may require cooling, not heating, to remain at the desired temperature. Since we have looked at the possible sources …
We all know that temperature is an important parameter in cleaning and cleaning-related processes. Too little and cleaning will be ineffective. Too much can lead to possible chemical separation, part degradation and loss of ultrasonic cavitation. So providing the proper temperature is mandatory for the best cleaning result. Sounds easy? Well, yes and no – consider …
As I said earlier, the cleaning equipment itself is often not the source of what is perceived to be a “cleaning” problem. It is understandable, however, that blame often falls on the cleaning process as it is during the cleaning process that the problem often first manifests itself. Once a problem is detected, the solution …
The chemistries used in industrial cleaning processes are predominantly either dry (granular or powder) or liquid. Dry chemistries cover a wide range of density and flow characteristics. In fact, two batches of the “same” dry chemistry may have considerably different properties. Each liquid product has its own specific gravity and viscosity characteristics but may also vary in other …
Most cleaning processes are comprised of a number of discreet steps. A wash followed by one or more rinses and then a dry would be a typical cleaning process. As parts being cleaned are moved from one process step to the next, they are vulnerable to potential risks by conditions not directly related to cleaning. Whether related …
We all know that an ounce is a unit of weight, right? There are 16 ounces in a pound, 2,000 pounds in a ton and so on. However, in another convention, there are 8 ounces in a cup, 16 ounces in a pint, 32 ounces in a quart, 128 ounces in gallon, etc. In fact, …
Previous blogs have revealed a number of ways to measure chemical concentration in a cleaning bath. It is a logical extension that process engineers utilize these tools to automate maintaining the proper chemical concentration in their cleaning processes. Overall, this is a great idea. However, there are some pitfalls and things that should be taken …
English
Spanish
Chinese
Canada
Mexico
United Kingdom
