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  1. Thread: Pressure Gap

    by RichardB
    Replies
    8
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    2,195

    Re: Pressure Gap

    Normally your peak pressure is at switchover, when cavity is most close to full, it could be an indication of a cold slug or some other restriction in the melt flow path. Check your graphs or do a...
  2. Replies
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    1,831

    Re: Injection Molding - Grivory Resin

    Maybe condition the parts in hot water for 24 hours?
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    4
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    2,378

    Re: Deduster recommendation for PMMA

    We use dedicated hopper and material feed lines for clear PMMA, and a de duster from Pelletron.
  4. Re: Voids in polypropylene parts - raw material problem?

    I wonder if it is a "wide spec" material, where the MFI could have variation and still be "in spec". Can you correlate the defect to specific melt flows?
    I had a similar problem where material had...
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    6
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    2,229

    Re: Aluminium Tool life

    I've not heard of tonnage plates either, but with AL tools for structural foam molding we would put steel inserts in the parting line shut offs.
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