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Trailing Shield For Welding On PipesTrailing shield ensures layer of inert gas covers hot, newly formed bead between two tubes or pipes joined by plasma arc welding. Inert gas protects weld bead from oxidation by air until cooler and less vulnerable to oxidation. Intended for use on nickel-base alloy pipes, on which weld beads remain hot enough to oxidize after primary inert-gas purge from welding-torch cup has passed.
Document ID
19910000681
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Coby, John B., Jr.
(Rockwell International Corp.)
Gangl, Kenneth J.
(Rockwell International Corp.)
Date Acquired
August 14, 2013
Publication Date
December 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 12
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
MFS-29743
Accession Number
91B10681
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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