▎ 摘　　要

NOVELTY - Preparing magnesium alloy conductive coating involves: using a linear cutting machine to make a magnesium alloy block, cutting a plate or a bar into 120x 120x 3 mm square sheet or 100x 3mm wafer, using water paper for mechanical grinding, removing surface oxide scales and impurity, cleaning for 10 minutes in acetone and absolute ethanol and drying; using gantry type stirring friction welding machine to stir friction processing on the magnesium alloy pre-treated surface and selecting cylindrical needle-free stirring head; preparing silicate-based coating doped with tin antimony oxide, polyaniline and graphene composite coating using micro-arc oxidation equipment; preparing an electrochemical deposition coating containing polyaniline and graphene on the surface of the magnesium alloy micro-arc oxidation coating; and annealing the magnesium alloy coated with the conductive coating on the outer surface in an air atmosphere by a heat treatment furnace at 100-300?oC for 5-15 minutes. USE - Corrosion resistant conductive coating method for surface of magnesium alloy used in the field of military electronic equipment (claimed) such as missile seeker antenna shell and radar antenna. ADVANTAGE - The corrosion-resistant conductive coating on the surface of magnesium alloy has increased self-corrosion potential of 38.4-57.6%, reduced self-corrosion current density to 165-1310 times, and good conductivity.