▎ 摘　　要

NOVELTY - The device has a covering portion comprising a reaction chamber, flanges provided at both ends of the reaction chamber, and storage chambers connected to the flanges. The flange is air-tightly connected to the reaction chamber and fixes the reaction chamber and communicates with the storage chamber. The storage chamber includes a traction roller provided inside the motor and a motor provided outside the storage chamber. The motor is used to drive the traction roller. A temperature control unit includes a heater and a cooler to adjust the temperature of the reaction chamber and the flange. An atmosphere control unit includes a vacuum pump and a gas supply device to generate a vacuum in the reaction chamber and the storage chamber and control and adjust a gas composition and an air pressure in the reaction chamber and the storage chamber. A control module is provided for monitoring and controlling the coating section, the temperature control section, and the atmosphere control section. USE - Device for preparing graphene-coated three-dimensional metal products. ADVANTAGE - The presence of graphene prevents the metal atoms from contacting with oxygen, water, and inorganic salt ions, which significantly improves the metal's ability to resist oxidation and corrosion. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of preparing a graphene structure. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the device for preparing graphene-coated three-dimensional metal products. Quartz tube (1) Stainless steel flange (2) Stainless steel chamber (3) Heater (4) Air cooling device (5)