Plastic Extrusion

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  1. That's not something we stock...

    It's been a busy week, you've been working hard all week to get a new target account to give you a chance to quote their next opportunity. Today you finally get the call, they send you prints and its time to really impress them with your knowledge, quick turn around and lead time. You gather all your information and then call your plastic supplier to...
  2. What is Casting?

    Casting involves introducing a liquefied plastic into a mold and allowing it to solidify. In contrast to molding and extrusion, casting relies on atmospheric pressure to fill the mold rather than using significant force to push the plastic into the mold cavity. Some polymers have a viscosity similar to bread dough even when they are at elevated temperature so they...
  3. What is Extrusion?

    The word extrusion is taken from the Latin word extrudere meaning (ex) out and (trudere) to push. In the extrusion process, a pellet or dry powder plastic is heated and forced through a die. The majority of extrusion is done by screws although ram extrusion is still used for UHMW powder specifically. The screws will melt and mix the material...