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Lightweight Forms for Epoxy/Aramid DuctsAluminum mandrels easy to remove. Lightweight aluminum mandrel for shaping epoxy/aramid ducts simplifies and speeds production. In new process, glass-reinforced epoxy/aramid cloth wrapped on aluminum mandrel. Stainless-steel flanges and other hardware fitted on duct and held by simple tooling. Entire assembly placed in oven to cure epoxy. After curing, assembly placed in alkaline bath dissolves aluminum mandrel in about 4 hours. Epoxy/aramid shell ready for use as duct. Aluminum mandrel used to make ducts of various inside diameters up to 6 in. Standard aluminum forms used. Conventional tube-bending equipment produces requisite curves in mandrels.
Document ID
19860000388
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Mix, E. W.
(Rockwell International Corp.)
Anderson, A. N.
(Rockwell International Corp.)
Bedford, Donald L., Sr.
(Rockwell International Corp.)
Date Acquired
August 12, 2013
Publication Date
July 1, 1986
Publication Information
Publication: NASA Tech Briefs
Volume: 10
Issue: 4
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MSC-20957
Accession Number
86B10388
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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