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Making Reliable Large-Diameter O-RingsVacuum curing yields joint-free, voidless elastomer seals. Method for manufacturing large-diameter O-rings produces them in single pieces, without bonded joints. Reduces probability trapped gases form flaws. O-rings produced, having diameters as much as 144 in. (3.66m), reliable and of high quality. Nesting upper and lower halves of mold hold elastomer rings for curing. Oil flowing through upper and lower cavities heats elastomer to cure it.
Document ID
19890000529
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Larsen, Glade L. (Morton Thiokol, Inc.)
Harvey, Albert R. (Morton Thiokol, Inc.)
Date Acquired
August 14, 2013
Publication Date
October 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 10
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MFS-28371
Accession Number
89B10529
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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