▎ 摘　　要

NOVELTY - A fluorescent powder wheel with graphite radiating layer, comprising a disc substrate, coating a fluorescent powder layer on the disk substrate, further comprising graphite radiating layer attached on the disc substrate. The graphene radiating layer can be prepared by the graphene radiating film attaching on wheel disc substrate, and can be prepared by directly spraying the graphene solvent to the wheel disc substrate. The fluorescent powder wheel comprising the graphite radiating layer, solves the problem that the temperature of the local fluorescent powder wheel is too high when using, which effectively improves the heat dissipation efficiency, and can be widely used for both planar and non-planar disc substrate preparation, at the same time, the added graphite radiating layer does not influence the mechanical structure of the original fluorescent powder wheel, which is good for the miniaturization of the equipment.