- 专利标题: Method For Manufacturing Aluminum Alloy Extruded Material
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申请号: US18351826申请日: 2023-07-13
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公开(公告)号: US20230357889A1公开(公告)日: 2023-11-09
- 发明人: Karin SHIBATA , Hiroaki MATSUI
- 申请人: AISIN KEIKINZOKU CO., LTD.
- 申请人地址: JP Imizu-shi
- 专利权人: AISIN KEIKINZOKU CO., LTD.
- 当前专利权人: AISIN KEIKINZOKU CO., LTD.
- 当前专利权人地址: JP Imizu-shi
- 优先权: JP 21028184 2021.02.25
- 主分类号: C22B21/00
- IPC分类号: C22B21/00 ; C22C21/10 ; C22F1/053 ; B21C23/00
摘要:
The method for manufacturing an aluminum alloy extruded material using an aluminum alloy containing 20 to 95% by mass of a recycled aluminum material made by collecting and remelting extruded materials of aluminum alloys that are used or scrap materials generated in a manufacturing process, containing by mass: 6.0 to 8.0% of Zn, 1.0 to 2.0% of Mg, 0.10 to 0.50% of Cu, 0.10 to 0.25% of Zr, and 0.005 to 0.05% of Ti, with 0.30% or less of Si and 0.40% or less of Fe as impurities, and a balance being Al, includes cooling an extruded material at a cooling rate of 50 to 750° C./min from an extruded material temperature of 325 to 550° C. directly after extrusion, and thereafter performing two-stage artificial aging treatment at 90 to 130° C. for 1 to 8 hours and at 130 to 180° C. for 1 to 20 hours.
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