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Steel Foil Improves Performance Of Blasting CapsBlasting caps, which commonly include deep-drawn aluminum cups, give significantly higher initiation performance by application of steel foils on output faces. Steel closures 0.005 in. (0.13 mm) thick more effective than aluminum. Caps with directly bonded steel foil produce fragment velocities of 9,300 ft/s (2.8 km/s) with large craters and unpredictable patterns to such degree that no attempts made to initiate explosions. Useful in military and aerospace applications and in specialized industries as mining and exploration for oil.
Document ID
19900000173
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Bement, Laurence J.
(NASA Langley Research Center, Hampton, VA.)
Perry, Ronnie
(PRC Kentron)
Schimmel, Morry L.
(Schimmel Co.)
Date Acquired
August 14, 2013
Publication Date
April 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 4
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-13832
Accession Number
90B10173
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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