Screw speed is not the most consistent method of improving mixing within the barrel. Back Pressure and Melt Temperature are more consistent and reliable methods of mixing your polymer. Question: I read your post on using a slow screw for long cycle time for processes like ours. My techs tell me they need to use […]
Monthly Archives
August 2013
Slow Screw Speeds…
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, […]
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 […]