EXTRUDING MOLD FOR PROPELLANT GRAIN OF SOLID ROCKET MOTOR AND MANUFACTURING METHOD FOR PROPELLANT GRAIN OF SOLID ROCKET MOTOR USING THE SAME

摘要

The present invention relates to a multi-stage extrusion mold for the production of propellant grains of a propulsion engine and a method of manufacturing the propellant grains of a propulsion engine using the same. By extruding the propellant grains of the inner and outer circumferential surfaces through the extrusion process, the propellants of complex shapes can be easily manufactured, greatly simplifying the manufacturing process and significantly shortening the manufacturing time, greatly improving productivity, and without the adhesive process. By manufacturing propellants of complex shape with inner and outer circumferential surfaces processed, unstable combustion caused by poor adhesion process is prevented, and high combustion performance and stable combustion performance of propellant grains are realized, and various demands for propellant grains with high surface area It is possible to respond.