What rubber insulator can be attached to hot aluminum alloy?
What rubber insulator can be attached to hot aluminum alloy?
(OP)
The scenario: the aluminum alloy nose cone of an impact driver (in mass production) reaches too high of temperatures. To deal with this, I am redesigning the nose cone to have fins. At the peak of each fin, I would like to put some type of insulator that will protect the user from being burned if they would like to touch the nose cone after long periods of operation.
I am looking for a type of rubber or plastic that could be attached to the peak of each fin that will act as this insulator without losing its integrity at temperatures as high as 80ºC. What material could do this job (low conductivity, high service temp) and last for upwards of 10 years? The follow up question is: by what method can I properly attach the material to the fins? Overmolding, glue, or some other process? This process/binding material cannot lose its binding properties at extreme temps or after long periods of time either.
Materials currently being looked at: butyl, EPDM, and different types of insulation tapes (such as butyl)
Binding methods currently being looked at: overmolding and Masterbond EP21LV
Please help and thank you in advance!
(There is a picture attached of the nose cone with fins and rubber attached to the top of each one)
I am looking for a type of rubber or plastic that could be attached to the peak of each fin that will act as this insulator without losing its integrity at temperatures as high as 80ºC. What material could do this job (low conductivity, high service temp) and last for upwards of 10 years? The follow up question is: by what method can I properly attach the material to the fins? Overmolding, glue, or some other process? This process/binding material cannot lose its binding properties at extreme temps or after long periods of time either.
Materials currently being looked at: butyl, EPDM, and different types of insulation tapes (such as butyl)
Binding methods currently being looked at: overmolding and Masterbond EP21LV
Please help and thank you in advance!
(There is a picture attached of the nose cone with fins and rubber attached to the top of each one)





RE: What rubber insulator can be attached to hot aluminum alloy?
Butyl will not hold up as well to handling/weather/abrasion as EPDM, and nitrile rubber would likely outlast EPDM unless there is some ozone source nearby (brushed motor?). I'd think nylon or PBT would also work if you added a mechanical retaining means. If you shape a round rib on the rubber/plastic fins that slipped into a similar slot on the aluminum body, then you could use cheaper extrusion runs of the rib material and cut them to length (might be more assembly time and more expensive in the long run, dunno).
RE: What rubber insulator can be attached to hot aluminum alloy?
RE: What rubber insulator can be attached to hot aluminum alloy?
RE: What rubber insulator can be attached to hot aluminum alloy?
TTFN (ta ta for now)
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RE: What rubber insulator can be attached to hot aluminum alloy?
RE: What rubber insulator can be attached to hot aluminum alloy?
RE: What rubber insulator can be attached to hot aluminum alloy?
It looks pretty easy to put an intern up to
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RE: What rubber insulator can be attached to hot aluminum alloy?
RE: What rubber insulator can be attached to hot aluminum alloy?