▎ 摘　　要

NOVELTY - Preparing field soil-touching agricultural tools with high wear resistance comprises taking 0.28-0.52 wt.% carbon, 0.50-0.95 wt.% manganese, 1.80-2.10 wt.% silicon, 0.75-0.92 wt.% chromium, 0.08-0.20 wt.% boron, 0.05-0.13 wt.% titanium, 3-4.50 wt.% nickel, 0.10-0.25 wt.% nitrogen, less than or equal to 0.02 wt.% phosphorus, less than or equal to 0.02 wt.% sulfur, and iron (balance amount), adding into electric furnace, melting into molten steel, stirring at 1680-1720 degrees C, heating at 1680-1720 degrees C for 3-5 hours, pouring into casting mold, heating at 1050-1150 degrees C, heating at 150-200 degrees C for 3-4 hours, cooling to 650-750 degrees C, heating at 1050-1150 degrees C, heating at 100-150 degrees C for 1-2 hours, cooling to 450-550 degrees C, heating at 650-750 degrees C, heating at 80-120 degrees C for 4-6 hours to obtain heat-treated field soil-touching farm tool castings, mixing the graphene powder, hyperbranched polyglycerol, the iron powder and carbon nanotubes, and subjecting to differential mixing and ball milling under the protection of argon to obtain mixed powder. USE - The method is useful for preparing field soil-touching agricultural tools with high wear resistance. ADVANTAGE - The field soil-touching farm tool: has excellent comprehensive mechanical properties, and low cost; and is beneficial to industrial production.