This question came in last month. Although I could not get any specifics about the machine such as age or model, I believe the question still makes a good discussion… E-Mailer Today I tried to adjust limit of injection pressure on Demag machine. I adjust maximum of machine 210 bar actual injection pressure was 160 […]
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Routsis Training
‘If I Train My Employees… They Will Leave’
I very often hear people justify not training their employees with the age old argument ‘If I Train My Employees… They Might Leave.’ One of the funniest responses to this I have heard is from Zig Ziglar who says ‘If you don’t train your employees… they might stay!’. All humor aside, ignorance is never a […]
Boss Cracking on a Polysulfone Part
A recent question was received via e-mail… RZ We are encountering cracking at the bosses on a polysulfone part. We press fit inserts on the bosses but we don’t see cracking during insertion. It is not until a day or two later that we see the cracking. Any thoughts? My Response The occurrence of cracking and crazing in […]
Troubleshooting Voids… In The Sprue
I recently received an email from a friend of mine regarding voids… Ron How do you troubleshoot voids in the sprue? My Response The presence of voids in the sprue is very common, but the need to troubleshoot this is unique to sprue-gated parts. Voids in a sprue gate are a little different than a typical sink or void at the […]
Venting Issues
I received this general venting question the other day… LG Many of our molds have venting issues as evidenced by either burns or filling problems. I realize that a “flow analysis” done previous to cutting the steel would answer most of these questions. The gases have to get out… What do you recommend regarding placement, size […]