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Technology of the Screw-Extrusion Process for the manufacture of double-base rocket propellants

✍ Scribed by A. Homburg; H. Brachert

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
635 KB
Volume
2
Category
Article
ISSN
0721-3115

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✦ Synopsis

Abstract

Description of a continuous, remote‐controlled and largely automated processing method for double‐base solid propellants for the propulsion of rockets. The base materials are mixed as an aqueous batch and processed into a wet mix paste with concurrent homogenization. Kneading is a continuous and automatic process performed by disc kneaders. Compression to the granulate, as the intermediate product, is also a continuous and automatic two‐stage process performed in twin‐screw extruders with automatic mixing of the batch quantity into a homogeneous product between these two operations. Before the last operation, compression molding, the propellant mix which is continuously dewatered in the various operations, is dried to the moisture content required for the end product and, in the last stage, it is again continuously and automatically compressed in twin‐screw extruders to form the propellant grain.

This process is distinguished by the high homogeneity of the end product, high reliability, rational and material‐saving processing and a broad field of application.

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