▎ 摘　　要

NOVELTY - Toughness mold comprises 85-93 pts. wt. iron powder, 1.5-2.2 pts. wt. carbon, 1.8-2.4 pts. wt. silicon, 0.9-1.6 pts. wt. manganese, 2.5-3.4 pts. wt. phosphorus, 1.6-2.4 pts. wt. sulfur, 0.6-1.3 pts. wt. chromium carbide, 3.5-4.6 pts. wt. graphene, 2.8-3.5 pts. wt. boron carbide, 5.6-6.8 pts. wt. alumina, 0.4-0.8 pts. wt. molybdenum, 1.3-1.7 pts. wt. nickel oxide, 1.2-1.6 pts. wt. tin and small amount of deionized water. USE - Toughness mold. ADVANTAGE - The toughness mold has good wear resistance, good high temperature resistance and corrosion resistance, strong toughness and long service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing toughness mold, which involves: (A) dividing the ratio of the molds, adding raw materials to the electric arc furnace and performing smelting at 1850-1980 degrees , casting molten steel into electrode rods to form ingots, where ingot is electroslag remelted; (B) dropping liquid metal in droplet form through the slag layer of the slag pool to the water-cooled crystals; (C) resolidifying into steel ingots to obtain electroslag ingots; (D) annealing electroslag ingots isothermally and heating electroslag ingots at 1350-1460 degrees C, cooling for 15-24 hours, and heating slag ingots to 1100-1180 degrees C for rough forging, where final forging temperature is not lower than 1050 degrees C to obtain first steel forgings; (E) forging steel and heating at 1200 degrees C first, and cooling to 850-950 degrees C to obtainsecond steel forgings; (F) placing second steel forgings in in the annealing furnace at 800-900 degrees C, insulating for 210-300 minutes and cooling annealing furnace to 620-700 degrees C, insulating for 130-170 minutes; (G) cooling annealing furnace to below 500 degrees C to remove the forgings; and (H) performing forging quenching treatment, after cooling the forgings polished to obtain finished products.