▎ 摘　　要

NOVELTY - The utility model claims a heating brick for plastic suction machine, comprising a ceramic panel and a ceramic cover; one end surface of the ceramic panel is provided with a conductive coating; the ceramic panel is further provided with at least one layer of graphene heating coating; the graphene heating coating covers a part of conductive coating; a part of the conductive coating is exposed out of the graphene heating coating; the inner wall of the ceramic cover is provided with at least one layer of heat insulating coating; the ceramic panel and the ceramic cover are combined together; the connecting gap between the ceramic panel and the ceramic cover is coated with sealing glue; the ceramic cover shields graphene heating coating and conductive coating. Therefore the graphene coating is sprayed on the ceramic panel, easy processing, forming high heat quality, high heat conductivity, high heat, high stability, long service life, fast heating effect, high heating temperature of the heating brick, heating temperature can reach to 400-800 degrees centigrade, satisfying the user requirement.