公开(公告)号：US20190264311A1

公开(公告)日：2019-08-29

申请号：US16101629

申请日：2018-08-13

申请人： AISIN KEIKINZOKU CO.,LTD.

发明人： Tomoo YOSHIDA ,  Karin SHIBATA

IPC分类号： C22F1/053 ,  C22C21/10

摘要： A method for manufacturing a bent article using an aluminum alloy with high strength and excellent corrosion resistance comprises: extruding a cast billet of an aluminum alloy including, by mass, 6.0 to 8.0% Zn, 1.50 to 3.50% Mg, 0.20 to 1.50% Cu, 0.10 to 0.25% Zr, 0.005 to 0.05% Ti, 0.3% or less Mn, 0.25% or less Sr, and the balance Al with inevitable impurities to obtain an extruded material; cooling the extruded material at an average rate of 500° C./min or less immediately after the extrusion processing; subjecting the cooled extruded material to preliminary heating treatment at a temperature within a range of 140 to 260° C. for 30 to 120 seconds within a predetermined time after the extrusion processing; bending the extruded material having undergone the preliminary heating treatment to obtain a bent article; and subjecting the bent article to artificial aging treatment.

公开(公告)号：US20210010121A1

公开(公告)日：2021-01-14

申请号：US17034539

申请日：2020-09-28

申请人： AISIN KEIKINZOKU CO., LTD.

发明人： Karin SHIBATA

IPC分类号： C22F1/05 ,  B21C23/00 ,  C22C21/04

摘要： An aluminum alloy is provided that is used to produce a high-strength aluminum alloy extruded material that exhibits excellent formability. The aluminum alloy consists of 0.30 to 1.00 mass % of Mg, 0.6 to 1.40 mass % of Si, 0.10 to 0.40 mass % of Fe, 0.10 to 0.40 mass % of Cu, 0.005 to 0.1 mass % of Ti, 0.3 mass % or less of Mn, 0.01 to 2.0 mass % of Zn, and 0.10 mass % or less of Zr, with the balance being aluminum and unavoidable impurities, the aluminum alloy having a stoichiometric Mg2Si content of 0.60 to 1.30 mass % and an excess Si content of 0.30 to 1.00 mass %.

公开(公告)号：US20230357902A1

公开(公告)日：2023-11-09

申请号：US18351798

申请日：2023-07-13

申请人： AISIN KEIKINZOKU CO., LTD.

发明人： Karin SHIBATA ,  Hiroaki MATSUI

IPC分类号： C22C21/10 ,  C22F1/053 ,  B21C23/00

CPC分类号： C22C21/10 ,  C22F1/053 ,  B21C23/002

摘要： The method includes casting a billet of an aluminum alloy composition including, by mass: 6.0 to 8.0% of Zn, 1.5 to 3.0% of Mg, 0.20 to 1.50% of Cu, 0.10 to 0.25% of Zr, 0.005 to 0.05% of Ti, 0.15 to 0.35% of Mn, 0.25% or less of Sr, and 0.25 to 0.50% of a total of [Mn+Zr+Sr], and a balance including Al and unavoidable impurities, cooling the billet at a rate equal to or higher than a cooling rate of 50° C./hr after homogenization treatment at 480 to 520° C. for 1 to 14 hours, extruding an extruded material by using the billet subjected to the homogenization treatment so that a temperature of the extruded material directly after extruding becomes 325 to 550° C., cooling the extruded material at a rate of a cooling rate of 50 to 750° C./min directly after extruding, and applying two-stage artificial aging treatment.

公开(公告)号：US20230357889A1

公开(公告)日：2023-11-09

申请号：US18351826

申请日：2023-07-13

申请人： AISIN KEIKINZOKU CO., LTD.

发明人： Karin SHIBATA ,  Hiroaki MATSUI

IPC分类号： C22B21/00 ,  C22C21/10 ,  C22F1/053 ,  B21C23/00

CPC分类号： C22B21/0092 ,  C22C21/10 ,  C22F1/053 ,  B21C23/002

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.

公开(公告)号：US20190024224A1

公开(公告)日：2019-01-24

申请号：US16142379

申请日：2018-09-26

申请人： AISIN KEIKINZOKU CO.,LTD.

发明人： Karin SHIBATA ,  Tomoo YOSHIDA

IPC分类号： C22F1/053 ,  C22C21/10

摘要： An aluminum alloy extruded material that exhibits high strength by air cooling immediately after extrusion processing and excellent stress corrosion cracking resistance, and a method for manufacturing the same are disclosed. The material includes, by mass: 6.0 to 8.0% of Zn, 1.50 to 2.70% of Mg, 0.20 to 1.50% of Cu, 0.005 to 0.05% of Ti, 0.10 to 0.25% of Zr, 0.3% or less of Mn, 0.05% or less of Cr, 0.25% or less of Sr, and 0.10 to 0.50% in total among Zr, Mn, Cr and Sr, with the balance being Al and unavoidable impurities.

公开(公告)号：US20240327955A1

公开(公告)日：2024-10-03

申请号：US18616441

申请日：2024-03-26

申请人： AISIN KEIKINZOKU CO., LTD.

发明人： Yuuki HAMATAKA ,  Karin SHIBATA

IPC分类号： C22C21/10 ,  C22F1/053

CPC分类号： C22C21/10 ,  C22F1/053

摘要： A method of producing a high-intensity aluminum alloy extruded material excellent in resistance to stress corrosion cracking, the method comprising: preparing an Al—Zn—Mg-based aluminum alloy, subjecting the aluminum alloy to extrusion so that a temperature of an extruded material obtained immediately after the extrusion is 440° C. or more; allowing the extruded material to cool in an air at a cooling rate of less than 100° C./min until the temperature range of the extruded material reaches 300 to 400° C. from immediately after the extrusion for one minute to 3 minutes and 24 seconds; and then forced cooling the extruded material at a cooling rate of 100 to 2000° C./min until the temperature of the extruded material reaches 150° C. or less, followed by an aging treatment.

公开(公告)号：US20220364213A1

公开(公告)日：2022-11-17

申请号：US17878175

申请日：2022-08-01

申请人： AISIN KEIKINZOKU CO., LTD.

发明人： Takahito KAWAMURA ,  Tomoo YOSHIDA ,  Karin SHIBATA

IPC分类号： C22F1/053 ,  C22C21/10 ,  B21C23/00

摘要： A method for producing an aluminum alloy extrusion includes: conducting extrusion processing using a casted billet of an aluminum alloy containing 6.0 to 7.0% by mass of Zn, 1.5 to 2.0% by mass of Mg, 0.20 to 1.50% by mass of Cu, 0.10 to 0.25% by mass of Zr, 0.005 to 0.05% by mass of Ti, 0.15 to 0.35% by mass of Mn, 0.25% by mass or less of Sr, content of Mn and Zr and Sr being 0.10 to 0.50% by mass, with the balance being Al and inevitable impurities to obtain an aluminum alloy extrusion; cooling the extrusion to 100° C. or less at a cooling rate of 50 to 750° C./min immediately after the extrusion processing; and then conducting an aging treatment which is performed in one-stage or two-stage and a heat treatment which is performed at higher temperature for a shorter time than the aging treatment.

公开(公告)号：US20160362771A1

公开(公告)日：2016-12-15

申请号：US15248114

申请日：2016-08-26

申请人： Aisin Keikinzoku Co., Ltd.

发明人： Karin SHIBATA

IPC分类号： C22F1/05 ,  C22C21/04 ,  B21C23/00

CPC分类号： C22F1/05 ,  B21C23/001 ,  B21C23/002 ,  C22C21/02 ,  C22C21/04

摘要： An aluminum alloy extruded material exhibits excellent hardenability that ensures that high strength can be obtained by air-cooling immediately after extrusion and artificial aging, and exhibits excellent formability (e.g., press formability). An aluminum alloy includes 0.30 to 1.00 mass % of Mg, 0.6 to 1.40 mass % of Si, 0.10 to 0.40 mass % of Fe, 0.10 to 0.40 mass % of Cu, 0.005 to 0.1 mass % of Ti, and 0.3 mass % or less of Mn, with the balance being aluminum and unavoidable impurities, the aluminum alloy having a stoichiometric Mg2Si content of 0.60 to 1.30 mass % and an excess Si content of 0.30 to 1.00 mass %.

摘要翻译： 铝合金挤出材料显示出优异的淬透性，确保了在挤出和人造时效之后立即通过空气冷却获得高强度，并且显示出优异的成形性（例如压制成形性）。 铝合金包含：0.30〜1.00质量％的Mg，0.6〜1.40质量％的Si，0.10〜0.40质量％的Fe，0.10〜0.40质量％的Cu，0.005〜0.1质量％的Ti和0.3质量％ 的Mn，余量为铝和不可避免的杂质，铝合金的化学计量Mg2Si含量为0.60〜1.30质量％，过量Si含量为0.30〜1.00质量％。