suitable insulation Material for machining
suitable insulation Material for machining
(OP)
I am looking for insulation Material with low thermal conductivity. It will be used inside a 60mm stainless steel tube as an kind of inlay to reduce the 60mm to a smaller diameter. The Material Properties need to allow for machining, e.g. on a lace or milling machine.
I used Delrin an acetal resin from du pond which has a thermal conductivity of about 0.36W/mK in the past
Does anyone know of something similar which can be used for machining but with a lower thermal conductivity?
It needs to cope with fluidtemperatures (Oil or water) of up to 80°C
I used Delrin an acetal resin from du pond which has a thermal conductivity of about 0.36W/mK in the past
Does anyone know of something similar which can be used for machining but with a lower thermal conductivity?
It needs to cope with fluidtemperatures (Oil or water) of up to 80°C





RE: suitable insulation Material for machining
http://www.accuratus.com/macorfab.html
RE: suitable insulation Material for machining
RE: suitable insulation Material for machining
http://www.accuratus.com/macormats.html 1.5 W/m-K
For the thermal conductivity that you're looking for, expanded foams and plastics are probably it. Polystyrene and expanded polystyrene have thermal conductivities lower that 0.08 W/m-K:
http://en.wikipedia.org/wiki/Polystyrene
Styrofoam has thermal conductivities on the order of 0.02 W/m-K:
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But they're are probably not machinable, although they can certainly be molded. And it might be possible to use a machinable insert if machining is an absolute requirement.
TTFN
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RE: suitable insulation Material for machining
The material have got very good physical properties and can be easily machined.
RE: suitable insulation Material for machining
Or you could insert Styrofoam, and roll/crush the inner diameter to whatever you need.
The specification is so far incomplete; you haven't stated a limit on yield strength or elasticity.
Mike Halloran
Pembroke Pines, FL, USA
RE: suitable insulation Material for machining
I've also seen sintered/porous thermoplastics, but can't recommend a supplier etc. and don't know if they're available in the form of bar.
RE: suitable insulation Material for machining
I have got a related Question, for insulation purposes we are using for tubes foam insulation from Amstrong Amaflex. Of the shelf this is only available for tube sizes up to 3 inch.
I have got some tubing with a diameter of about 4 inch.
Does anyone know a supplier who can deliver such sizes.
(preferably in the UK)
Maximum Wall temperatures 90°C
RE: suitable insulation Material for machining
RE: suitable insulation Material for machining
RE: suitable insulation Material for machining
RE: suitable insulation Material for machining
In the end I went for Celluplank. Approx. 0.69W/m-K so probably not applicable here but machinable and available quickly.