Thermal-conducting fiber reinforced high-thermal-conductivity graphite radiating fin and preparation method thereof

The invention provides a thermal-conducting fiber reinforced high-thermal-conductivity graphite radiating fin and a preparation method thereof. The preparation method of the thermal-conducting fiber reinforced high-thermal-conductivity graphite radiating fin comprises the following steps: carrying out pretreatment on graphite powder; processing the graphite powder subjected to pretreatment by using a graphite coiled material production device, thereby obtaining a thermal-conducting graphite radiating plate; and taking short graphite fibers, carbon fiber cloth and carbon fibers as a reinforcing agent, and carrying out coating and laminating on the thermal-conducting graphite radiating plate and the reinforcing agent by using an adhesive so as to obtain the thermal-conducting fiber reinforced high-thermal-conductivity graphite radiating fin. According to the preparation method of the thermal-conducting fiber reinforced high-thermal-conductivity graphite radiating fin, the defects of low mechanical properties, short service life and easy falling and the like existing in the conventional preparation process can be overcome, and the mechanical strength and the purity of the radiating fin are greatly improved, thereby facilitating subsequent processing; and the radiating fin has the advantages of light weight, high strength, high thermal conductivity, and the like, and enlarges the application range of graphite flakes.