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Thread: Pack and Hold Time for Hot runner molds

  1. 25th August 2011, 04:15 PM #1
    Suhas
    Suhas is offline Forum Administrator
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    Pack and Hold Time for Hot runner molds

    How do you decide your holding times for hot runner molds?
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  2. 25th August 2011, 09:26 PM #2
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    Danny R
    Danny R is offline Junior Member
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    I set those times based on the appearance of the molded part (sink) & also based on the dimension of the part.
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  3. 29th August 2011, 10:24 PM #3
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    rickbatey
    rickbatey is offline Senior Member
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    I still do a gate freeze study, but realize that there is no true gate freeze and look for the weight to start leveling off. Then at that time plus about a half a second extra, I set the press.
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  4. 30th August 2011, 06:30 PM #4
    Suhas
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    I am still not very clear on how to 'scientifically' determine this. I do have some ideas that I am working on. I will let you know these soon. In the meanwhile, please post your comments.
    Thanks,
    Suhas
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