Casting method for drive axle shell of agricultural vehicle

• Main Authors: LIU MINGQING, CHEN WENCAI, ZHANG BANBEN, LAN CHUNPING, WEI XINYI
• Format: Patent
• Language: Chinese; English
• Published: 27.07.2021
• Subjects: ALLOYS; 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; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TRANSPORTING; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides a casting method for a drive axle shell of an agricultural vehicle. The method comprises the following steps that S1, raw material smelting is conducted, raw materials are added into a medium-frequency electric furnace to be smelted, graphite recarburization is adopted during smelting, and due to the high melting point of C, the C is firstly added into the bottom of the furnace and then enters molten iron in a diffusion and dissolution manner; S2, spheroidizing and inoculating are conducted, a low-magnesium low-rare-earth spheroidizing agent is selected, spheroidizing and inoculating treatment is performed by adopting a dam flushing-in method, and the temperature of tapping liquid is controlled to be 1450-1550 DEG C; S3, casting forming is conducted, specifically, molten metal is cast into a forming mold, the casting temperature is 1450-1480 DEG C, and natural cooling is conducted after forming; S4, detection and flaw detection are conducted, firstly, the drive axle shell is cleaned, wh