Method and apparatus for the quasi-isostatic pressure-forming of

Details Method and apparatus for the quasi-isostatic pressure-forming of Method and apparatus for the quasi-isostatic pressure-forming of

1993-03-16

1994-10-11

Nelson, Peter A.

Plastic and nonmetallic article shaping or treating: processes

Explosive or propellant article shaping or treating

264 34, 86 2011, C06B 2100

Patent

active

053545192

ABSTRACT:
A quasi-isostatic pressure-forming methods for the production of precision explosive charges consists of the pre-heating of the explosive mass to be pressure-formed is now preheated to 100-120.degree. C. with subsequent forming in an autoclave at pressures of an order of magnitude of 3500 bar during 0.5-5 min. After pressure relief during a further phase of 10-180 min, the mass is cooled down at pressures of 50-500 bar. In a further elaboration of the invention, two autoclaves, one high pressure and one low pressure, may be utilized.

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patent: 3628779 (1971-12-01), Lundstrom
patent: 4330251 (1982-05-01), Lebas et al.
patent: 4496299 (1985-01-01), Pettersson
patent: 4710329 (1987-12-01), Lebas et al.
patent: 4920079 (1990-04-01), Kaeser et al.
patent: 4978482 (1990-12-01), Johnson et al.
patent: 5230841 (1993-07-01), Redecker et al.

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