NDE Method for detcting voids in rubber tubes
NDE Method for detcting voids in rubber tubes
(OP)
I need a method for detcting air entrainment o dispersion problems in extruded rubber tubes. We have no way to check for voids without cutting samples into hudndrds of sections.
These bladder tubes are 66" long have 1.56 od and .230 wall thicknss. They are inflated like a balloon to 300-400% elongation. Any discontiniuty in wall will result in rupture.
Is there an NDE method that would work like an MRI.
These bladder tubes are 66" long have 1.56 od and .230 wall thicknss. They are inflated like a balloon to 300-400% elongation. Any discontiniuty in wall will result in rupture.
Is there an NDE method that would work like an MRI.





RE: NDE Method for detcting voids in rubber tubes
RE: NDE Method for detcting voids in rubber tubes
Or you could fill it with a dyed water and submerse and see if any dye leaks out.
Your two proposed approaches are all essentially manual, visual inspection approaches that would be very time and labor intensive.
TTFN
RE: NDE Method for detcting voids in rubber tubes
Surely you already have a test - inflate and if they rupture (which I assume is very visible!)- they fail. Or do they just leak,, in which case as irstuff mentioned and inflate submerged - although personally I would just watch for bubbles...
I would suggest getting the process corrected until you can inflate the tubes without rupture....as that seems to be the pass/fail criterion.
Cheers
Harry
RE: NDE Method for detcting voids in rubber tubes