The present invention relates to a split-type core for manufacturing a radial slot of a propulsion engine, and is a core that is positioned to be inserted into a propellant during propellant grain production to form a radial slot, and can be separated into a ring-shaped support ring body and the ring-shaped support ring body It is possible to easily separate and remove the divided body within the radial slot, including a plurality of divided body parts to minimize the amount of foam core remaining in the propellant grain, improve the quality of the propulsion engine, and form the foam in the propellant grain When removing the core, it prevents damage to the propellant grains and can be easily separated from the propellant grains without damaging the propellant grains, simplifying the propellant manufacturing process, improving productivity, and enabling stable quality control.
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