▎ 摘　　要

NOVELTY - The device has a graphite cylinder (21) detachably mounted on a lower plate. A semicircular sleeve and an outer side plate are detachably connected with each other. An inner side plate detachably mounts on the lower plate and is located between the graphite cylinders and the outer side plates. An end of a thin film passes through a passage between the inner side plates and the outside of the inner and outer sides plates and is adhered to the graphite cylinder. A winding of the film is realized by rotation of the graphite cylinder and the film coil is obtained. USE - Coiled material winding device for use in placing device for graphene heat conducting film coiled material (all claimed). Can also be used in heat management field. ADVANTAGE - The device improves yield, reduces cost, limits internal volume of the single thermal reduction device i.e. graphitizing furnace, uses the coiled material placing device that can effectively use an internal space, reduces expansion when thermal reduction, can improve the yield of a single device, improve efficiency of the heat treatment device, reduces the cost of the graphene film, and improve the competitiveness of graphene film. The nano metal particles include but not limited to iron, cobalt, nickel, titanium, chromium and so on, can effectively reduce foaming in the process of thermal reduction of graphene oxide film, inhibiting the expansion. The method for compounding nano metal inhibitor, strong adjustability, and the whole preparation process of the film does not introduce adverse factors, comprising stirring and coating. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: a device for placing coiled material; and a graphene heat conducting film coiled material preparation method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the coiled material placing device for a coiled material winding device. 2Coiled material placing device 21Graphite cylinder 23Middle plate 25Supporting rod 26Locking mechanism