▎ 摘　　要

NOVELTY - Composite coating comprises an electroplating nickel coating and electroplating nickel-graphene composite coating. The raw material of the used electroplating nickel plating bath electroplating nickel coating comprises 300-400 g/liter nickel sulfamic acid, 5-15 g/liter nickel chloride, 2.5-7.5 g/liter citric acid, 15-20 g/liter boric acid and 0.05-0.15 g/liter sodium dodecylbenzenesulfonate. The raw material of the electroplating nickel-graphene composite plating solution of electroplating nickel-graphene composite coating comprises 300-400 g/liter nickel sulfamate, 5-15 g/liter nickel chloride, 2.5-7.5 g/liter citric acid, 15-20 g/liter boric acid, 0.05-0.15 g/liter sodium dodecylbenzenesulfonate and 0.12-0.19 g/liter graphene. USE - The composite coating is useful for improving the bonding force and high temperature oxidation resistance of 310S stainless steel coating (claimed), chemical industry pipeline, high temperature furnace and other device, and in metal plating technology field. ADVANTAGE - The composite coating: is stable and uniform; and has excellent high-temperature oxidation resistance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: Preparing composite coating; and Improving the bonding force and high temperature oxidation resistance of 310S stainless steel coating.