▎ 摘　　要

NOVELTY - The method involves selection and weighing of raw materials that includes weighing the base material, aluminum oxide fine powder particles, silica powder particles, and graphene powder particles by weighing equipment, and storing the weighed components in a storage tank for storage; smelting of matrix alloy materials that includes pouring the matrix material into the smelting equipment, then starting the smelting equipment, heating the smelting equipment to 700-800 degrees C, maintaining the temperature for 15-30 minutes, so that the matrix material in the smelting equipment melts, increasing the temperature to 900-1000 degrees C, maintaining the temperature for 10-15 minutes to complete the refining of the matrix material for obtaining a refined matrix alloy material. USE - Method for casting an aluminum-based ceramic composite material piston. ADVANTAGE - The aluminum-based ceramic composite material piston has good mechanical properties, and reduced defective rate. DETAILED DESCRIPTION - The method involves selection and weighing of raw materials that includes weighing the base material, aluminum oxide fine powder particles, silica powder particles, and graphene powder particles by weighing equipment, and storing the weighed components in a storage tank for storage; smelting of matrix alloy materials that includes pouring the matrix material into the smelting equipment, then starting the smelting equipment, heating the smelting equipment to 700-800 degrees C, maintaining the temperature for 15-30 minutes, so that the matrix material in the smelting equipment melts, increasing the temperature to 900-1000 degrees C, maintaining the temperature for 10-15 minutes to complete the refining of the matrix material for obtaining a refined matrix alloy material; adding the aluminum oxide fine powder particles, silica powder particles and graphene powder particles to the refined matrix alloy material, stirring at 300-400 rotations/minute for 30-40 minutes so that each micro-powder particles can be dispersed with the alloy material in the matrix material to generate a ceramic reinforcement phase, reacting at 560-680 degrees C to obtain a premix; and heating the premix to 800-900 degrees C for 10-15 minutes so that each ceramic fine powder material is fully smelted and mixed to obtain refined composite materials. The refined composite material is injected into the piston mold through the self-heating insulation pipe, and at this time, the electromagnetic eddy current heating component in the self-heating insulation pipe is started. The temperature of the inner wall of the entire pipeline is heated to the range of 680-720 degrees C, and then the composite material is slowly passed into the pipeline from the melting equipment. The other end of the pipe is connected to the cavity in the piston mold to complete the thermal insulation pouring of the composite material. The composite material in the piston mold is cooled by a cooling device. After the cooling is completed, the mold can be opened to take out the piston blank, then cleaned, cut, polished and oiled.