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    COLD-ROLLED ALUMINUM ALLOY SHEET, AND METHOD FOR PRODUCING SAME
    1.
    发明公开
    COLD-ROLLED ALUMINUM ALLOY SHEET, AND METHOD FOR PRODUCING SAME 审中-公开

    公开(公告)号：EP4512917A1

    公开(公告)日：2025-02-26

    申请号：EP23791903.0

    申请日：2023-04-19

    Applicant: UACJ Corporation

    Inventor： EZAKI, Tomotaro ,  KUDO, Tomoyuki ,  TANAKA, Hiroki

    IPC: C22C21/00 ,  C22C21/06 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047

    Abstract: This cold-rolled aluminum alloy sheet has a composition containing 0.15 to 0.40% by mass of Si, 0.30 to 0.80% by mass of Fe, 0.10 to 0.50% by mass of Cu, 0.80 to 1.20% by mass of Mn, and 0.50 to 1.70% by mass of Mg and optionally containing, as optional elements, 0.30% by mass or less of Zn and 0.15% by mass or less of Ti, with the remainder comprising Al and unavoidable impurities. In the cold-rolled aluminum alloy sheet, the content ratio, expressed in % by mass, of Fe to Si is within the range represented by the formula: 1.97 ≤ Fe/Si ≤ 4.00, the (amount of solid-solubilized Mn)/(total amount of Mn) ratio is 0.17 or more, the amount of solid-solubilized Si is 0.03% by mass or less, and a peak ratio I(18.26°±0.1°)/I(22.45°±0.1°) between a diffraction intensity I at a bragg angle (2θ±0.2°) of 18.26°±0.1° and a diffraction intensity I at a bragg angle of 22.45°±0.1° in an X-ray diffraction pattern is 0.11 or more.

    ALUMINUM ALLOY PLATE FOR CAN LID
    8.
    发明公开
    ALUMINUM ALLOY PLATE FOR CAN LID 审中-实审

    公开(公告)号：EP4394068A1

    公开(公告)日：2024-07-03

    申请号：EP23766752.2

    申请日：2023-03-03

    Applicant: UACJ Corporation

    Inventor： KUDO, Tomoyuki ,  TAKEZAWA, Kouki ,  TAZOE, Kiyonari ,  EZAKI, Tomotaro

    IPC: C22C21/06 ,  C22F1/00 ,  C22F1/047

    CPC classification number: C22F1/047 ,  C22F1/00 ,  C22C21/06

    Abstract: Provided is an aluminum alloy sheet for a can lid, the sheet achieving both high strength and high toughness while blending scrap materials derived from can materials. In one aspect of the present disclosure, the sheet comprises: a Si content of 0.10 mass % or more and 0.60 mass % or less; a Fe content of 0.20 mass % or more and 0.70 mass % or less; a Cu content of 0.10 mass % or more and 0.40 mass % or less; a Mn content of 0.5 mass % or more and 1.2 mass % or less, and a Mg content of 1.1 mass % or more and 4.0 mass % or less, wherein a 0.2% yield strength σ0.2, a tensile strength σB and an average value σfm, of the 0.2% yield strength and the tensile strength satisfy a following formula (1): σfm/σ0.2/σB≥350MPa

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