Securement of liner for shaped charge

Fecha de publicación: 11/08/1993
Fuente: WIPO "royal booby"
The present invention relates to a method and an apparatus for securing the inlays, so-called liners (3) which, in the effect direction, define the explosive portion in charges for directed bursting (hollow charge) effect, so-called shaped charges, and which, on detonation of the explosive, are converted into a particle jet or more or less projectile-like so-called slug which accounts for the effect of the charge on the target. The object of the present invention is to solve those problems which occur when materials with excessively different coefficients of thermal expansion must be used in the inlay (3) and a case (1) surrounding the rest of the explosive portion. According to the present invention, this is solved by a specific securement of the inlay (3) in the form of a specially designed anchorage ring (4) which gives a securement which is rigid in the axial direction, i.e. parallel with the intended effect direction of the charge, but permits certain temperature movements across this direction.