How are plastic P-Traps made?
How are plastic P-Traps made?
(OP)
I'm wondering if someone can explain how plastic p-traps are made.
Here is a picture of what I'm talking about.
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Here is a picture of what I'm talking about.
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RE: How are plastic P-Traps made?
As for that, I don't know how they _are_ made, but I can conjecture a few ways they _might_ be made, depending on volume and tooling money.
- Mold it as a tee, and form it to a U while it's still warm, letting it cool in a fixture.
- Mold it to final shape, with two arcuate cores, withdrawn before ejection. Very difficult machining, but no more impossible than a submarine gate.
- Mold it to final shape, with a sectional core, having the sections chained together and yanked out at ejection.
- Mold it over a lowmelt core, and boil the core out.
It's probably done some other way; none of those really appeal to me.
Maybe you can look inside and find witness lines that will give you a clue how it's done.
Mike Halloran
Pembroke Pines, FL, USA
RE: How are plastic P-Traps made?
As for the mould, they will have a retracting core mechanism. The moulds will be expensive.
In theory, they could also be done with meltable cores like bismuth tin alloys or even ice but in practice these solutions have cost, accuracy or environmental problems.
Regards
Pat
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RE: How are plastic P-Traps made?
Is it possible to mold a S shape (ie 2 180deg bends)?
RE: How are plastic P-Traps made?
.. How much money have you got?
Mike Halloran
Pembroke Pines, FL, USA
RE: How are plastic P-Traps made?
Regards
Pat
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RE: How are plastic P-Traps made?
ht
Plumbing P-Traps are not made this way as is is generally used for higher value product. Engine manifolds etc have been done like this.
TruDesign