This question was received earlier this week… CD What should be the minimum pressure during switch over time of injection? My Response If you are switching over through the use of screw position, then you should ensure the maximum pressure setting is significantly higher than injection pressure at transfer. Additional Thoughts It is critical that you have enough pressure […]
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Routsis Training
The Best Training Method…
I received this question via email yesterday… NG Which is the best type of training? My Response No single method of training can meet each of the success factors necessary to teach all your employees. For this reason, it is important to use a training plan comprised of multiple training methods targeted to teach your employees the […]
Complications from 1st to 2nd Stage Transfer…
In a comment thread in a previous blog entry, a reader had some questions about how to handle the transfer from 1st to 2nd stage transfer. The basic focus of the discussion both in the comments as well as private were about a general approach to establishing the transfer, yet they have many different types and brands […]
More About Back Pressure…
I was recently asked about back pressure… GG My employees were asking me to explain the following statement ‘Back pressure causes additional material to flow over the flights of the screw’. I wanted to hear your explanation before discussing it with them. My Response During screw recovery, the screw is pumping material forward down the flights of […]
Differential Cooling for Warpage…
I was recently at a molder’s facility who was having a complication with one part… Molder Even though this polypropylene part has a curve, we have a problem with it curving too much thus causing a complication with assembly. note: when discussing the troubleshooting process, they have investigated most aspects of the process, but it […]