A blog reader recently asked this quick question about training… Stephen When I develop my training plan, who should be included? My Response You should try to get everyone on the production floor involved in your training initiative. Aside from processing, quality, and tooling… you may also want to include other departments such as sales or […]
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Routsis Training
Reduced Bloom in Extruded PP Film
I recently received this from an extruder manufacturing PP film… RB We are processing a 1.1mil 3-layer PP film with a random copolymer. Initially, we were processing at 210ºC with a kinetic COF (coefficient of friction) = 0.5 initially, and 0.2 after two weeks. Currently, if we process at 210ºC, we get a COF of 0.8, […]
Procedure for Measuring Screw Wear
As a follow-up to one of my recent posts, I received this question… Matt The problem we are encountering is the different opinions on how to measure the screw and barrel wear. Is there a procedure that is widely used throughout the industry to determine screw wear? My Response Regarding the screw – Most screw manufacturers […]
Applicable Training
During a recent seminar, an extrusion technician recently made this false statement… Technician None of the training out there applies to what my plant is doing. My Response I first asked him if his extruder had a barrel and screw… He said yes. I then asked about the barrel heaters, cooling fans, and temperature controllers… He […]
Measuring Screw Wear
A friend of ours recently asked this question about screw wear… Jim I can get maintenance to measure the screw, but their philosophy is that there’s no reason to do so. Typically we replace barrels and check rings, but do not know what the state of the screw is. I think we should know, and […]