I heard this from a manager the other day… Manager Our method of training is to have a new employee shadow one of our technicians for a couple days before we let them process themselves. This method teaches the our employees what they need to know about processing, the rest they learn on-the-job. My Thoughts When you try […]
Monthly Archives
December 2010
Self-Paced vs. Self-Taught…
I was just asked this question on the phone… JD If I leave the training up to my people, it will never get done. I have many books, magazines, and articles available to my employees, but they never use them. What is the difference between that and self-paced training? My Response Self-Taught: This expression implies that the employee actually […]
Preheating the Polymer…
A customer asked me this question the other day… KL We are using a screw specifically designed for our grade of PP, we have performed the tact temperature study, and have optimized both injection and packing. All these have helped, yet our cycle time is still limited by the screw recovery time, do you have any suggestions? My Response Once the process and screw […]
Dynamic vs. Static Cavity Balancing…
After answering some follow-up questions from the last post, I decided to clarify the difference between Dynamic cavity balancing and Static cavity balancing with repsect to either injeciton molding or injection-blow molding. Dynamic Cavity Balancing When the mold cavity is filling, the polymer flow front is considered dynamic, or in motion. The balance of two or more mold cavities […]
Cavity Balance for Blow Molding…
I received this question over the weekend… Ponce What is the right procedure for performing a cavity balance test for a blow molding machine with an injection, pack and hold? My Response Basically, the procedure is similar to that of an injection molding machine. You would turn off the second and third stage, and then compare the shot […]