This paper deals with the ignition dependability, inflammation-erode, and burning velocity for base bleed grain using testing method.

This paper deals with the ignition process of the base bleed grain consisting of NH 4ClO 4 (AP) and hydro terminated polybutadiene (HTPB) by the GC-45 igniter with the ignition composition ZrH 2+PbO 2 and modified igniter with the ignition composition Mg+PTFE.

Characteristic Researching for Pyrotechnic Composition BB Pellet

It is a very complex process of physics and chemistry that the combustion of the base bleed propellant in whirling shape of high speed.

The accuracy of the formulas of the base bleed propellant burning rate is one of the preconditions for an exact results of the interior ballistic parameters calculation of the base bleed unit.

In order to study the strength of the base bleed charge in projectile shot,the mathematic model and the strength condition under load and stress of the base bleed charge in projectile shot were established based on strength theory.

To improve the stability and consistency of base bleed unit while the projectile was out of the gun muzzle,the characteristics of transient combustion of composite base bleed charge was studied by using a semi-closed bomb to simulate a abrupt depressurization and a high speed digital video camera to record the phenomena of combustion.

This paper concisely introduces the static test unit of the combustion behavior of pyrotechnics base bleed propellant and the preliminary test results.