Dear John,
Once again thanks for the reply,
I think that heating the LOM tool will result in problems, especially
>if there is any mositure still in the tool. If you heat the wax to a
>higher
>temperature it might help but could also result in greater shrinkage.
>This could
>be balanced by using chill balls (specially shaped wax pieces used to
>reduce the
>amount of molten wax need to fill a volume).
Could you explain how to use the chill balls. I don't have experience how
to use that.
>I'm not sure what you mean by "unproper seating": are you getting a
>parting line
>flash from where the tool mates together?
No not in the Parting line. The problem occurs between injection hole plate
and the seating of that plate with the mold.
>What temperatures, pressures and injection methods are you using?
Temperature is 65-70 C and the pressure is 50 kg/cm3.
Kind Regards,
Susantha
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S.A.D.P.SUSANTHA
MAIL BOX NO 294 SCHOOL OF ADVANCED TECHNOLOGY
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