▎ 摘　　要

NOVELTY - Powder metallurgy gearbox material comprises 1-6 wt.% nickel powder, 1-6 wt.% molybdenum powder, 0.5-3 wt.% polyvinyl isobutyl ether, 0.5-6 wt.% zinc stearate, 3-12 wt.% copper powder, 0.5-5 wt.% oligomeric graphene and rest of iron powder. USE - Powder metallurgy gearbox material (claimed). ADVANTAGE - The powder metallurgy material improves wear resistance and strength of the gearbox.