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  1. Re: Voids in polypropylene parts - raw material problem?

    Yeah, you're right about the cooperation, or rather lack of it. Certs say everything is fine so there couldn't possibly be anything wrong we're being told. Radio silence from the material supplier...
  2. Voids in polypropylene parts - raw material problem?

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    Hi all,

    We having been having problems with intermittent voids over the past year while making a polypropylene part for our customer. These voids will appear over the course of a few...
  3. Re: Intermittent screeching noise during plasticising stage

    Thanks guys for your help, it's much appreciated. Just a quick update:

    I raised the feed throat temperature by about 20 degrees, it seemed to have a positive effect at the start but the...
  4. Intermittent screeching noise during plasticising stage

    Hi all,

    I'm currently running a clear Polycarbonate material using a Fanuc Roboshot injection moulding machine. For some strange reason an intermittent screeching noise occurs during the...
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