Resin Transfer Method

[chil wilson]

I am posting this in this forum because of my mechanical background but it may also need to be in chemical as well. My predecessor built a resin transfer mold which has never work due to flat top deflection causing vacuum loss (Full vacuum). the problem is that the flat part is 30" OD x 1.5" flat top is being injected with 126 PSIG at 80 DEG F with a viscosity fluid of 480 Centipoise liquid. I have tried to run a comparable vessel configurations through both compress and APV and cannot get a realistic number of the actual pressure against the top plate. There should be a way of calculating that actual pressure inside the small chamber while pumping the fluid in to create a custom flange. Any suggestions?

 

[Compositepro]

You just told us the pressure in the mold.

 

[chil wilson]

But wouldn't that also depend on the rate of infusion of the thick fluid?

Chil Wilson V.P.

 

[chil wilson]

Sorry i should have added that the chamber is filled with fiberglass matting

Chil Wilson V.P.

 

[Compositepro]

The pressure is whatever you want it to be, by adjusting a dozen factors that you have not told us about. "Calculating" a pressure is the wrong approach to start solving your problem. The amount of help you seem to need is beyond the tips that this website is intended for. Is you have some more specific questions there is a "composite engineering" forum on this website, which would be far appropriate.

 

[Latexman]

Can you attach a fab drawing/sketch of this mold and a P&ID? That might help.

Good Luck,
Latexman