Casting process for tough ductile iron traction sheave

• Main Authors: YIN SHIWEN, QIU ZHONGHUA, QIAN GENRONG
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2022
• Subjects: ALLOYS; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; FOUNDRY MOULDING; METALLURGY; METALLURGY OF IRON; PERFORMING OPERATIONS; POWDER METALLURGY; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a casting process for a tough ductile iron traction sheave. The casting process for the tough ductile iron traction sheave comprises the following steps that S1, smelting furnace charge is prepared and matched; S2, the furnace charge needing to be smelted is put into a smelting furnace to be smelted; S3, a nucleating agent and a spheroidizing agent are added into molten iron obtained through smelting; S4, a ductile iron traction sheave mold cavity is prepared; S5, casting molding is conducted through a casting mold; S6, the initial ductile iron traction sheave formed through casting is cooled; and S7, the cooled initial ductile iron traction sheave is pretreated. According to the casting process for the tough ductile iron traction sheave, the traction sheave mold is prepared through high-strength low-gas-forming precoated sand, the use amount of resin used when the traction sheave mold is prepared can be greatly reduced, the gas forming amount can be remarkably reduced, and the gas for