▎ 摘　　要

NOVELTY - Preparing a super-high temperature graphite thin composite film, in that the ultra-high temperature graphite thin composite film, comprises (a) placing 27-45 pts. wt. water in container, adding 0.25-0.6 pts. wt. weighting agent, 0.25-0.6 pts. wt. dispersing agent, and 25-30 pts. wt. a sol, stirring and mixing uniformly; (b) adding 2.5-8 pts. wt. rare earth, 3-8 pts. wt. sericite, 3-8 pts. wt. graphene and 1-5 pts. wt. diatomaceous earth in above mixture, continuing to stir and mixing uniformly, adding 2.5-6 pts. wt. silicone emulsion, and then continue to stir and mix uniformly, that is ultra-high temperature graphite thin composite film coating; and (c) placing the component to be coated or device to be coated into a vacuum chamber, loading high-temperature heat-insulating graphite-based composite material coating into automatic coating device, and after vacuuming the vacuum chamber, passing automatic coating device to be coated or device to be coated. USE - The method is useful for preparing a super-high temperature graphite thin composite film. ADVANTAGE - The method: provides the ultra-high temperature graphite thin composite film, that: can be applied to titanium alloy, stainless steel, high temperature alloy steel and carbon fiber composite material, can withstand 1000 degrees C high temperature, high temperature corrosion resistance, wear resistance, no falling off, carbon steel and long service life, better meets the design requirements of related parts on products e.g. weight reduction, thermal deformation and anti-salt fog of multi-model aerospace vehicles. DETAILED DESCRIPTION - Preparing a super-high temperature graphite thin composite film, in that the ultra-high temperature graphite thin composite film comprises 27-45 pts. wt. water, 0.25-0.6 pts. wt. weighting agent, 0.25-0.6 pts. wt. a dispersant, 0.25-0.6 pts. wt. a defoamer, 26-35 pts. wt. a sol, a rare earth having a particle size of greater than or equal to 2.5-6 and a particle size of greater than or equal to 10000 mesh, sericite with a particle size of 2.5-6 and a particle size of greater than or equal to 10000 mesh, graphene having a particle size of greater than or equal to 2.5-6 and a particle size of greater than or equal to 10000 mesh and a diatomaceous earth having a particle size of 1-5 and a particle size of greater than or equal to 10000 mesh, comprises: (a) placing 27-45 pts. wt. water in a container, adding 0.25-0.6 pts. wt. weighting agent, 0.25-0.6 pts. wt. dispersing agent, and 25-30 pts. wt. a sol, stirring and mixing uniformly; (b) adding 2.5-8 pts. wt. rare earth, 3-8 pts. wt. sericite, 3-8 pts. wt. graphene and 1-5 pts. wt. diatomaceous earth in the above mixture, and then continue to stir and mix evenly, then adding 2.5-6 pts. wt. silicone emulsion, and then continue to stir and mix evenly, that is ultra-high temperature graphite thin composite film coating; and (c) placing the component to be coated or the device to be coated into a vacuum chamber, loading the high-temperature heat-insulating graphite-based composite material coating into the automatic coating device, and after vacuuming the vacuum chamber, passing the automatic coating device to be coated or the device to be coated, where the coating can form a high-temperature heat-insulating graphite thin-film composite film on the surface of the part to be coated or the surface to be coated.