▎ 摘　　要

NOVELTY - The device has an upper pressing head ( 2 ) and a lower pressing head that are arranged in a vacuum chamber. The vacuum chamber is vacuumized by a vacuumizing device. A multi-layer graphene foam film is placed on the lower press head. The upper pressing head or the lower pressing head presses the multilayer graphene foam membrane to press a film to obtain a graphene heat conducting membrane. The multi-layered graphene foam membranes are placed in the vacuum chamber, where the vacuumizing device and a vacuumizing head are made of polyurethane or polypropylene material. USE - Film pressing device of graphene heat conducting film. ADVANTAGE - The film pressing device realizes the vacuum flat pressing so as to obtain the graphene heat conducting film with high density, ensuring the appearance of graphene heat-conducting film, rolling thickness and production efficiency and without bubble. It can realize the preparation of high density graphene, effectively improving the production and quality of graphene-free graphene-heat conducting film. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene heat conducting film by using the film pressing device. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of the film pressing device of graphene heat conducting film. Upper pressing head (2) Lower pressing head (3) Using control cabinet (7) Top beam (12) Reinforcing rib (13) Bottom beam (14) Upper connecting piece (21) Lower connecting piece (31) Upper beam (41) Lower beam (42) Supporting column (43) Hydraulic cylinder (51) Pressing head (81) Pressing sleeve (82)