On the newer electric injection molding machines, there is typically no detriment to using a slow screw speed for longer cycle times. This will just result in a more uniform and consistent melt. Question: Your training states that recovery should consume 80% of the cooling time. Some of our cooling times are almost 2 minutes, […]
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Routsis Training
Sustaining Proper Documentation…
The employees need examples of how the documentation makes their job easier and reduces process shift. If they do not understand how the training helps themselves, they are less likely to document the process changes. Question: I need advice as to how to better enforce the use of process sheets and track/record any changes made. I am […]
Sort vs. Standardize
There are many variations in 5S, and many people get confused between some of the terms. Since the terms all revolve around the same Lean Manufacturing principles there is often a confusion of concepts. Question: How do I explain the difference between Sorting and Standardizing? My Response: Sorting involves the organization of workplace and the […]
General Purging Procedure
I am often asked which method is the best way to purge. Unfortunately there are so many different types of compounds and applications that there no specific method which is best, but most procedures include the following aspects. Preparation: One of the most important aspects of purging is the preparation. This includes obtaining and mixing […]
Making Significant Changes
When making a change to a plastics process, it should always be large enough to make a noticable change. It is often difficult or impossible to differentiate between normal variation and the effects of a small change. Question: Why do you advise against making small gradual adjustments? My Response: Plastics materials introduce an inherent degree […]