▎ 摘　　要

NOVELTY - The utility model claims a neodymium-iron-boron plating trivalent black chromium and graphene layer structure sealed, comprising a neodymium-iron-boron substrate, and citrate pre-plating nickel layer prepared from inside to outside sequentially the neodymium-iron-boron substrate, pyrophosphate copper plating layer, acid copper plating layer, bright nickel plating layer, trivalent chromium black chromium plating layer, and graphene sealing layer. The utility model claims a neodymium-iron-boron plating trivalent black chromium and graphene layer structure of the sealing, according to GB/T 10125-2012 " artificial atmosphere corrosion test salt fog test " for neutral salt fog test 168h after plating surface without corrosion. The plating layer structure has good corrosion resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the neodymium iron boron plating trivalent black chromium and graphene to claim.