Wrought aluminum alloy sheet casting and indirect extrusion casting process thereof

• Main Authors: WANG YIXIANG, LYU JIANGANG, GUO CHENGFA, LI DONGYE
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a wrought aluminum alloy sheet casting and an indirect extrusion casting process thereof. The wrought aluminum alloy sheet casting is formed by carrying out extrusion casting processing on an aluminum melt obtained by remelting wrought aluminum in a mold at the temperature of 250-350 DEG C; wherein the temperature of an aluminum melt obtained after remelting is controlled to be 660-690 DEG C when the aluminum melt enters a mold, and the viscosity of the aluminum melt is 5.0 * 10 <-7 > m < 2 >/s-5. 5 * 10 <-7 > m < 2 >/s; the average grain size of grains of the aluminum alloy subjected to indirect extrusion casting ranges from 50 micrometers to 120 micrometers. The invention further provides an indirect extrusion casting process of the wrought aluminum alloy sheet casting. The fluidity of the aluminum melt obtained after remelting of the wrought aluminum is improved, so that the problems of gas entrapment, feeding and the like of the wrought aluminum alloy in the mold filling process ar