COMPOSITE DECOPPERING ADDITIVE FOR A PROPELLANT

There is provided a decoppering agent that is added to a propellant charge to remove copper from the rifling of the internal bore of a gun barrel. The decoppering agent consists essentially of a lead-free pulverized additive dispersed in a combustible binder. One suitable decoppering agent is pulver...

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Bibliographic Details
Main Authors RAINES, HENRY, H, MANNING, ROBERT, T., III, WILLIAMSON, JOHN, T, CANOVA, STEVE, K
Format Patent
LanguageEnglish
French
German
Published 12.11.1997
Edition6
Subjects
AMMUNITION
BLASTING
CHEMISTRY
EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
EXPLOSIVES
EXPLOSIVES OR THERMIC COMPOSITIONS
HEATING
LIGHTING
MANUFACTURE THEREOF
MATCHES
MECHANICAL ENGINEERING
METALLURGY
USE OF SINGLE SUBSTANCES AS EXPLOSIVES
WEAPONS
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Summary:There is provided a decoppering agent that is added to a propellant charge to remove copper from the rifling of the internal bore of a gun barrel. The decoppering agent consists essentially of a lead-free pulverized additive dispersed in a combustible binder. One suitable decoppering agent is pulverized bismuth metal, dispersed in a nitrocellulose binder. The bismuth metal either vaporizes or liquifies when the propellant charge is ignited and either embrittles or dissolves the copper deposits facilitating removal.
Bibliography:Application Number: EP19950943611