Preparation process of aluminum alloy profiles for ships

• Main Authors: LU ZUZHAN, ZHAO QIZHONG, HE JIANXIAN, ZHANG XINMING, HUANG XIUYUN, YANG HONGCHI, WU ZHENYU, WANG HUACHUN
• Format: Patent
• Language: Chinese; English
• Published: 24.01.2020
• Subjects: ALLOYS; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; 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; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; PUNCHING METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a preparation process of aluminum alloy profiles for ships, and relates to the technical field of material machining. The preparation process mainly comprises the steps of burdening, smelting, casting, uniform heat treatment, machining treatment, ingot heating, mold heating, extrusion cylinder heating, extrusion production and stretching; and through optimization of aluminum alloy melt components, the specific extrusion production process and stretching process are developed to improve the strength and the corrosion resistance of the aluminum alloy profiles for the ships. In the preparation process, based on a traditional preparation process, the aluminum alloy melt components are optimized to lay foundation for subsequent processes; the specific extrusion production process and stretching process are developed; the parameters of the extrusion production process are optimized; and the stretching force in the stretching process is strictly limited, so that the hardening in machining is