In a non-climate controlled environment, cold molds will often ‘sweat’ on humid days due to the mold surface temperature being lower than the dewpoint of the surrounding air. Question: We have to warm up our molds during the summer to keep the molds from sweating. This results in much longer cooling times. Management will not […]
Monthly Archives
April 2014
Skill Development Requires Practice…
Knowledge of a topic or concept is critical to understanding, but practice is the key to skills development. Question: I want my engineers to learn scientific molding skills, but can’t they just take the online courses? Do they really have to bother with the hands-on worksheets? My Response: If someone reads about Scientific Molding in […]
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 […]