▎ 摘　　要

NOVELTY - The utility model claims a neodymium-iron-boron plating black zinc and graphene structure of the sealing, 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, zinc plating layer, trivalent chromium black passivation layer and a graphene sealing layer. The utility model claims a neodymium-iron-boron plating black zinc and graphene structure of the sealing, according to GB/T 10125-2012 " artificial atmosphere corrosion test salt fog test " for neutral salt fog test 192h plating surface without white corrosion. The plating layer structure has high corrosion resistance, the preparation technology has good market prospect.