▎ 摘　　要

NOVELTY - The apparatus has a graphene storage unit for storing and stirring graphene. A high-pressure cleaning unit cleans metal materials at high pressure. A graphene coating chamber is provided with an external chamber. An inner chamber is arranged within an outer chamber to coat a surface of the metal material with graphene in an oxygen-free atmosphere. The graphene coating unit is provided between an extruder and an extrusion die. A rolling roller is arranged between two main rolling rollers. The extruder extrudes the graphene-coated metal material from the coating chamber. USE - Apparatus for coating graphene on a surface of a metal material. ADVANTAGE - The apparatus uniformly applies the graphene to a certain depth on the surface of the metal material by simple coating process, utilizes a low-cost graphene coating device to provide rapid coating, minimizes graphene consumption by adjusting supply amount of the graphene according to graphene coating order, a graphene coating area, and graphene coating temperature of the metal material, enhances corrosion resistance by the surface coating due to the non-chemical transformation of the grapheme, and increases lubricating action of the graphene. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for coating graphene on a surface of a metal material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the apparatus for coating the graphene on the surface of the metal material (Drawing includes non-English language text). 100Graphene storage unit 110Graphene 200High-pressure cleaning unit 300Graphene coating chamber 310External chamber