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Thread: Nozzle Leakage

  1. #1
    Join Date
    Sep 2012
    Location
    Indianapolis, IN
    Posts
    112

    Nozzle Leakage

    Have a mold that is leaking at 18K injection pressure. Have proven that it is not the nozzle carriage moving. Had the nozzle seat recut and using new tip with no luck.

    The mold is a transfer mold, but not really old. Question I have is might I have better luck with a 3/4" radius? I'm running out of ideas.

  2. #2
    Join Date
    Sep 2018
    Location
    Portland, OR
    Posts
    45

    Re: Nozzle Leakage

    What material?
    What nozzle size and what is the sprue opening?
    Assuming you checked the nozzle for damage and alignment?

    If the carriage isn't moving back at all and the nozzle seat and nozzle tip are in good condition and alignment, what do you think the cause of the leak is?

  3. #3
    Join Date
    Sep 2013
    Posts
    126

    Re: Nozzle Leakage

    Hi Joe
    did you confirm mold sprue and mach nozzle alignment?
    some times a micro fracture could be the cause
    by other side, carefully check that injection unit its not retracting during the injection

    BR.

  4. #4
    Join Date
    Aug 2011
    Posts
    623

    Re: Nozzle Leakage

    Hi Joe,
    What did you find out here? Just curious.
    Suhas

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