| 摘要 |
The resent invention relates to a method for producing propellant charges wi th progressive combustion characteristic and a higher charge density than previously considered possible to achieve, intended in the first instance fo r direct-firing barrel weapons such as tank cannons. Combined in the charge th at is characteristic of the invention are at least two radially perforated propellant tubes (10-12, 28-30, 48-52) which are arranged in their entirety inside or after one another, which process, at an e-dimension selected in relation to the actual type of propellant and its desired combustion characteristic, combustion or ignition channels (2, 19-21, 37), and which ha ve circular outer and inner boundary surfaces, in conjuction with which, before initiation of the charge, at least one of the total number of outer surfaces of these propellant tubes that are available for initiation has been treated with an inhibition, surface treatment or surface coating (13-18, 33-36) intended to delay the propagation of ignition to that surface, so that the combustion of the propellant tubes is partially mutually overlaping and take n together, gives rise to a maximum propellant gas pressure behind a projectil e fired with the charge from the barrel in question, which pressure, for the entire passage of the projectile through the barrel, lies close to the applicable Pmop value for the barrel ( the maximum operational pressure, i.e . the highest barrel pressure that can be permitted continously).
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