▎ 摘　　要

NOVELTY - Core mold material comprises 100 pts. wt. plastic pellets, 10-25 pts. wt. high-conductivity filler, 5-15 pts. wt. reinforcing filler, 0.05-0.5 pts. wt. coupling agent, 0.2-0.8 pts. wt. solid lubricant, 1-5 pts. wt. a plasticizer, and 0.2-0.8 pts. wt. antioxidant USE - Core mold material for rocket engine medicine column forming. ADVANTAGE - The alloy core mold effectively ensures short processing time, cost-effective, and easy processing technique by improving the modulus of the matrix by compounding and using good matrix plastic, enhances the conductivity by loading high-conductivity fibers and fillers, improves the strength and reduces the linear expansion coefficient by adjusting the type and the dosage of the fillers. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for following: (1) a method for preparing core mold material, which involves: weighing a certain amount of plastic granules, high-conductivity filler, coupling agent, plasticizer and antioxidant according to the weight proportion, premixing, and adding into an internal mixer for internal mixing. The uniformly internally mixed materials are put into a double-screw extruder, heated and melted, and then spinned and granulated for later use. (2) a method for preparing core mold, which involves heating and melting the core mold material granules by a screw rod extruder, extruding the melted granules into a forming mold, and cooling and forming to obtain a core mold column preliminarily. The turn-milling modeling is performed on the manufactured column body according to the core mold machining size.