Evaluating Check Ring Performance…

This question addresses a common issue for many techs… Jane What is the best way to evaluate the performance of a check ring? My Response To evaluate the performance of the check ring, it is recommended that you perform the dynamic check ring repeatability test. This test consists of producing and weighing a series of […]

Shut-Off Nozzles and Long Hold Times…

I reviewed the previous post where the blog reader asked whether electric machines are good for applications with long hold times and I wanted to add another comment… Shut-Off Nozzles Although some molders purchase shut-off nozzles to eliminate drooling, they are very helpful as part of an overall molding strategy. In the case of a process with a long […]

Company-Specific Training…

Recently, a potential customer mentioned this comment… Caller I like the idea of training my employees about extrusion, yet I need something specific to my operation and I don’t have time to create it. My Response First off, generic extrusion training is always better than no process training at all. As one of our customers […]

Can Low Melt Temperature Cause Flash?

Yesterday, I was asked this question… GH My tech told me that we were getting flash as a result of a low barrel temperature. An increase in barrel temperature fixed the problem, but I don’t know why, could you explain? My Response It may seem counter-intuitive, but flash could be the result of a low melt temperature or […]