Phenolic tube ducts
Phenolic tube ducts
(OP)
Hi guys,
I'm currently manufacturing some tube ducts out of glass phenolic. The lay up is fine as the mould is split in half. Once the duct is joined we then have to pull through a rubber intensifier. We are have some trouble getting this through efficiently and removing it effectively after curing. Sometimes the intensifier is damaged pulling it against the cured glass. Any tips that could help me?
Cheers
I'm currently manufacturing some tube ducts out of glass phenolic. The lay up is fine as the mould is split in half. Once the duct is joined we then have to pull through a rubber intensifier. We are have some trouble getting this through efficiently and removing it effectively after curing. Sometimes the intensifier is damaged pulling it against the cured glass. Any tips that could help me?
Cheers





RE: Phenolic tube ducts
Mike Halloran
Pembroke Pines, FL, USA
RE: Phenolic tube ducts
I can't say that I've ever heard that saying before. Can you elaborate?
RE: Phenolic tube ducts
From your context, I took 'intensifier' to mean a tube of some sort that you pressurize in order to compress the wet laminate.
If you're just using a solid rubber slug, consider making it hollow and pressurizing it during cure.
Then after cure, you can deflate it, and pull a vacuum if you need to shrink it further.
Mike Halloran
Pembroke Pines, FL, USA
RE: Phenolic tube ducts
I am using a hollow rubber tube intensifier that gets pulled through, I then apply an outer bag with a bag down the centre of the rubber intensifier.
RE: Phenolic tube ducts
RE: Phenolic tube ducts
RE: Phenolic tube ducts
Assuming you meant 'sharp', yes, phenolic/glass leaves super-nasty sharp edges and spikes where it doesn't get fully compacted.
... which might be resolved if you pressurized the rubber tube a little during cure.
Or maybe I am misunderstanding the problem.
Mike Halloran
Pembroke Pines, FL, USA
RE: Phenolic tube ducts
RE: Phenolic tube ducts
RE: Phenolic tube ducts