Wabash Transfer Molding help
Wabash Transfer Molding help
(OP)
I am not super knowlegable on Transfer molding presses. I have a Wabash Tranfer Press
Model VT 75H-24-x
It is a vaccum assist process and vertical clamping where you add resin wafers on top
I am running: Hysol MG18 it is a transparent epoxy molding compound, developed specifically for the encapsulation of
optoelectronic devices..
If anyone knows about these machines I am getting a super low yield manly due to bubbles. I have no idea where to start looking. There are yeild variances operator to operator but is there anything I can do from a processing stand point??
Link to actual press I need your help on...
http ://www.wab ashmpi.com /transfer_ molding_pr esses.html
Model VT 75H-24-x
It is a vaccum assist process and vertical clamping where you add resin wafers on top
I am running: Hysol MG18 it is a transparent epoxy molding compound, developed specifically for the encapsulation of
optoelectronic devices..
If anyone knows about these machines I am getting a super low yield manly due to bubbles. I have no idea where to start looking. There are yeild variances operator to operator but is there anything I can do from a processing stand point??
Link to actual press I need your help on...
http






RE: Wabash Transfer Molding help
Regards
Pat
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RE: Wabash Transfer Molding help
I have used a Wabash to mold hypalon rubber. The biggest issue that I had was non-fill due to the mold gates not being large enough.
Try less injection pressure and longer cycle time, that will reduce the chance of air entrapment.
RE: Wabash Transfer Molding help
You may also want to look at the load in the transfer pot - one thick slab of material will give less places for air to be entrapped than many smaller chunks or wafers.
RE: Wabash Transfer Molding help
Regards
Pat
See FAQ731-376: Eng-Tips.com Forum Policies for tips on use of eng-tips by professional engineers &
http://eng-tips.com/market.cfm
for site rules
RE: Wabash Transfer Molding help
RE: Wabash Transfer Molding help