I just received this question regarding a recent posting on my blog… Blog Reader You mentioned pressure loss with respect to the importance of maintaining a consistent cushion, could you quickly expand that thought? My Response All plastics are compressible… therefore there is a compression that takes place with the polymer in front of the […]
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Routsis Training
Understanding Back-Flow Within the Mold…
I received this question yesterday… MJ Could you explain the phenomena of back-flow inside the mold? I have in-mold sensors, but I don’t think I am seeing this. My Response Basically, there are two areas within the molding process where back-flow typically occurs: 1) Transfer From Fill To Pack: If the mold is completely full during […]
Targeting Cushion Size vs. Transfer Position
I was recently asked this question… e-Mailer We currently use a target transfer position of 0.25″ for all our processes. to avoid uneven barrel wear should we adjust the our standard transfer to something larger? My Response A standard cutoff is helpful when initially establishing your fill… but you ultimately want to target a percentage of shot size. […]
Torque Values For Larger Molds…
I received a few follow-up questions from a previous post, so I will address the most common one… JMG I was wondering if you have a chart showing proper torque spec for mold c lamps and bolts for 250 up to 1100 Ton machines? My Response Sorry, but I do not have such a chart, but […]
The ‘Too Busy To Train’ Excuse
I was asked this question during a recent webinar… Neil How do I overcome the ‘Too Busy To Train’ problem? My Response I often encounter this question when upper management does not put a priority on employee training. Many managers will state that employee training is important to them… but often neglect to set aside resources […]