▎ 摘　　要

NOVELTY - Preparing directional heat conductive graphite carbon film and directional heat conduction carbon part comprises performing ultrasonically crushing comprises cooling the soluble intermediate phase asphalt with liquid nitrogen, crushing, static removing the cooled soluble intermediate phase asphalt to obtain the substance A1 and preparing directional heat conductive carbon part comprises dissolving 1.5 pts. wt. soluble polyimide and 0.05 pts. wt. graphene oxide in 1 pts. wt. dimethylacetamide solvent, ultrasonically stirring to obtain adhesive G1, placing the directional heat conductive carbon film F1 on a rolling roller and bonding adhesive G1, folding back and forth many times to obtain the carbon film H1, pressing the carbon film H1 into a block to keep the temperature of the pressed piece uniform inside and outside, evaporating the solvent, continuing pressing at 350-400℃ for 10-30 minutes to obtain a directional heat-conducting carbon part I1. USE - The method is useful for preparing directional heat conductive graphite carbon film and directional heat conduction carbon part. ADVANTAGE - The method enables rich overall heat conduction effect of the existing heat-conducting carbon material and high heat conductivity in a specific direction of the heat-conducting carbon material; has large-format continuous production and realizes the combined production from film formation to carbon parts with controllable performance and has enhanced overall heat conduction effect of heat conduction carbon materials. DETAILED DESCRIPTION - Preparing directional heat conductive graphite carbon film and directional heat conduction carbon part comprises (a) performing ultrasonically crushing comprises cooling the soluble intermediate phase asphalt to -90 to -60℃ with liquid nitrogen, ultrasonically crushing, static removing the cooled soluble intermediate phase asphalt to obtain the substance A1, (b) preparing mixed liquid comprises mixing 7-9 pts. wt. substance A1 with 1 pts. wt. chopped and grinded carbon fibers to form a mixture B1, adding 1 pts. wt. mixture B1 to 1.5-2 pts. wt. ethylene glycol solvent at 60-70℃, fully stirring, cooling to 20-30℃ under stirring to obtain a uniform slurry and flowable mixed liquid B2, (c) preparing carbon slurry film comprises pouring the mixed liquid B2 evenly on the surface of a carbon fiber woven cover cloth that is rotating in circulation, controlling the mixed liquid B2 to maintain a length of 0.5-0.8 m on the carbon fiber woven cover cloth surface, setting an alternating magnetic field under carbon fiber woven cover cloth, controlling the strength and direction of the alternating magnetic field to change the arrangement structure of carbon particle crystals in the mixed liquid B2 to obtain carbon slurry film C with regular magnetization arrangement, (d) removing solvent by high temperature steam comprises passing the carbon fiber woven track cloth surface loaded with carbon slurry film C through a high temperature steam box, setting a strong alternating magnetic field at 10-15 cm below the carbon fiber woven track cloth surface in the high temperature steam box, keeping the orientation of the ethylene glycol solvent in the carbon slurry film C unchanged after the crystal moves during the percolation process, (e) preparing rolled carbon film comprises carrying out a first hot roller and a second hot roller treatment to the carbon fiber woven track cloth surface loaded with carbon slurry film C after the high-temperature steam box to obtain carbon source film D1, separating the carbon source film D1 from the carbon fiber woven track cloth surface by a carbon film roller, weaving on a ceramic roll to obtain a new carbon film D2, subjecting the carbon film D2 to a third hot roll treatment to obtain a rolled carbon film D3, conveying the rolled carbon film D3 via a shaft to an oxidative curing box, where the residence time of the rolled carbon film D3 in the oxidation curing box is not less than 60-150 minutes, introducing the purified air in the oxidative curing box to obtain the carbon film D4 after oxidative curing, sending the carbon film D4 after oxidative curing to a fourth heat press roller by shaft for processing to obtain rolled carbon film D5, weaving the rolled carbon film D5 on a ceramic roll, (f) carbonizing process comprises placing the rolled carbon film D5 wound on the ceramic roll into a carbonization box together with the ceramic roll, completely replacing the interior of the carbonization box by nitrogen for protection, heating the carbonization box to 1700-1800℃ at a rate of 5℃/minute for 30 minutes, cooling down to room temperature naturally, taking out the rolled carbon film D5, weaving on another ceramic roll in the opposite direction to obtain carbonized carbon film E1, (g) graphitization process comprises placing the carbonized carbon film E1 into a high-purity argon-protected graphite box for graphite treatment, heating the graphite box to 2800-3200℃ at a rate of 5-10℃/minute for 30 minutes, taking out, cooling down to room temperature, obtaining directional heat conductive carbon film F1 and (h) preparing directional heat conductive carbon part comprises dissolving 1.5 pts. wt. soluble polyimide and 0.05 pts. wt. graphene oxide in 1 pts. wt. dimethylacetamide solvent, ultrasonically stirring to obtain adhesive G1, placing the directional heat conductive carbon film F1 on a rolling roller and bonding adhesive G1, folding back and forth many times to obtain the carbon film H1, pressing the carbon film H1 into a block at a temperature of 260-450℃ and a pressure of 2-2.5 mpa to keep the temperature of the pressed piece uniform inside and outside, evaporating the solvent, continuing pressing at 350-400℃ and a pressure of 2-2.5 mpa for 10-30 minutes to obtain a directional heat-conducting carbon part I1.