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12th February 2021, 10:56 PM
#1
Re: Too much shrinkage
I recommend you to ensure that mold has a good maintenance, specially in cooling circuits, if the mold doesn't run so often, its a service parts only, its very common that cooling circuits get rust and water flow get affected, then mold run Hot, then you could get shrinkage issues,,
let us know if you fix it ..
BR.
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16th February 2021, 06:43 AM
#2
Re: Too much shrinkage
So I put it in another machine to narrow down if it's a machine issue, seems to still be the same. I think we're just not packing out the parts enough. Cushion is around .15 mm variance (according to the machine) from shot-to-shot. I packed the mold out today with higher than usual pressures and the tolerances are close, I'm surprised this little part is taking so much pressure to get it in tolerance...
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