Publicado 6 números por año
ISSN Imprimir: 2150-766X
ISSN En Línea: 2150-7678
Indexed in
Development and Production of Base Bleed Grain for 155 mm Rounds
SINOPSIS
The continued development and production of a base bleed grain described here is based on initial development performed by the Swedish National Defence Research Institute. The baseline composite propellant which has been used previously for base bleed grains for smaller caliber gun ammunition, was modified with the primary goal of meeting more rigid requirements for mechanical properties. Other goals included improving the aging properties, especially in exposure to humid air, and reducing health hazards in production. The means used besides conventional tailoring by optimizing curative ratio and oxidizer particle size distribution, were introducing a new bonding agent, a new antioxidant, and introducing fiber reinforcement of the propellant. Selected results from the development activities are presented.
Special test methods and equipment for evaluating effects of specific influences on base bleed systems of high linear acceleration and rotation rate, are described.
The RAUFOSS production process for base bleed grains for 155 mm rounds is briefly described.