Molding PVC With a Cushion…

The basics of scientific molding is the same whether you are molding CPVC or PP as it is with large parts vs. small parts. Essentially, the difference between is in the range and scale of parameters and not the scientific approach. Question: Isn’t it dangerous to mold PVC with a cushion since the extra material […]

Using Standardized Ejector Rods…

With the right mold preparation, you can use one set of ejector rods in every machine. One this is done, you can keep the rods in the machine and use the same ejection retract position for all your molds. Issue: Most of your molds use ejector rods to push the ejection system and you always […]

Temp, Time, & Part Dimensions…

A cooler mold tends to provide larger part dimensions, but this can often be offset by a reduction in cooling time. It is generally worth the effort to perform a quick DOE to verify. Concern: During an on-site training session, we were discussing how a cooler mold typically provides the best potential for a lower […]

Why Train Operators?

You should have training available to all your employees. This will give you the largest available pool of employees to choose from for advancement. Question: Why would I want to include operators and part inspectors in my training plan? My Response: You never know where your next technician could come from. Technical proficiency is something […]

Cavity Imbalance for LCP…

Whether you are processing PVC, Nylon, PS, or LCP, the basic strategy for filling and packing the mold is fundamentally the same. Question: I am having a problem on my connector mold having a short shot. I am using lcp as the material and my mold is 8 cavity mold with submarine gate. My Response: […]