Abstract
The two techniques, isostatic pressing and solvent pressing, were combined in order to utilize the special advantages of each system. The special apparatus consists of an open-end Neoprene bag into which is inserted a metal chamber (heavy wall tube) fitted across the mouth with a perforated metal plate. In operation, solvent is placed in the Neoprene bag, powder is poured in, and the chamber is inserted. The assembly is then subjected to isostatic pressure. In addition to the geometry and size of the piece to be pressed, other parameters of significance are press time, pressure, temperature, particle size and size distribution, and solvent. Discussion is given on the pressing of explosives and propellant formulations. (P. C.H.)
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