MY191760A - Aluminum alloy sheet for magnetic disc, aluminum alloy blank for magnetic disc, and aluminum alloy substrate for magnetic disc - Google Patents

Aluminum alloy sheet for magnetic disc, aluminum alloy blank for magnetic disc, and aluminum alloy substrate for magnetic disc

Info

Publication number
MY191760A
MY191760A MYPI2019006582A MYPI2019006582A MY191760A MY 191760 A MY191760 A MY 191760A MY PI2019006582 A MYPI2019006582 A MY PI2019006582A MY PI2019006582 A MYPI2019006582 A MY PI2019006582A MY 191760 A MY191760 A MY 191760A
Authority
MY
Malaysia
Prior art keywords
aluminum alloy
magnetic disc
mass
less
blank
Prior art date
Application number
MYPI2019006582A
Inventor
OTSUKA Yasufumi
KOMURO Hideyuki
Kato Yoshinori
Izumi Takahiro
Original Assignee
Kobe Steel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of MY191760A publication Critical patent/MY191760A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys

Abstract

An aluminum alloy sheet for magnetic discs, an aluminum alloy blank for magnetic discs, and an aluminum alloy substrate for magnetic discs having high ratio of Young's modulus to density and excellent proof stress and flatness are provided. The aluminum alloy sheet for magnetic discs, the blank and the substrate contains: Mg: 1.0 mass% or more and 6.5 mass% or less; Cr: 0.10 mass% or more and 0.30 mass% or less; Si: 0.20 mass% or less; Cu: 1.00 mass% or less; and one or more of Fe: 1.70 mass% or less, Mn: 1.5 mass% or less and Ni: 2.7 mass% or less, with the remainder being Al and impurities. The total of the contents of Fe, Mn and Ni is 0.3 mass% or more and 4.5 mass% or less.
MYPI2019006582A 2018-11-15 2019-11-11 Aluminum alloy sheet for magnetic disc, aluminum alloy blank for magnetic disc, and aluminum alloy substrate for magnetic disc MY191760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018214761A JP6640958B1 (en) 2018-11-15 2018-11-15 Aluminum alloy plate for magnetic disk, aluminum alloy blank for magnetic disk and aluminum alloy substrate for magnetic disk

Publications (1)

Publication Number Publication Date
MY191760A true MY191760A (en) 2022-07-14

Family

ID=69320943

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2019006582A MY191760A (en) 2018-11-15 2019-11-11 Aluminum alloy sheet for magnetic disc, aluminum alloy blank for magnetic disc, and aluminum alloy substrate for magnetic disc

Country Status (3)

Country Link
JP (1) JP6640958B1 (en)
CN (1) CN111187952A (en)
MY (1) MY191760A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115362501B (en) * 2020-04-06 2023-05-12 株式会社Uacj Aluminum alloy substrate for magnetic disk and magnetic disk using the same
JP7190475B2 (en) * 2020-12-15 2022-12-15 株式会社Uacj Aluminum alloy substrate for magnetic disk and magnetic disk
JP7252395B2 (en) * 2021-07-02 2023-04-04 株式会社神戸製鋼所 Aluminum alloy plate for magnetic disk, aluminum alloy blank for magnetic disk and aluminum alloy substrate for magnetic disk
WO2023276572A1 (en) * 2021-07-02 2023-01-05 株式会社神戸製鋼所 Aluminum alloy plate for magnetic discs, aluminum alloy blank for magnetic discs, and aluminum alloy substrate for magnetic discs

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5495912A (en) * 1978-01-13 1979-07-28 Nippon Telegr & Teleph Corp <Ntt> Aluminum substrate for magnetic disc and manufacture thereof
US4412870A (en) * 1980-12-23 1983-11-01 Aluminum Company Of America Wrought aluminum base alloy products having refined intermetallic phases and method
JPS59193239A (en) * 1983-04-15 1984-11-01 Mitsubishi Alum Co Ltd Al-alloy for magnetic disk substrate
JPS59193537A (en) * 1983-04-15 1984-11-02 Mitsubishi Alum Co Ltd Al alloy for substrate of magnetic disk
JPS6176643A (en) * 1985-03-28 1986-04-19 Nippon Telegr & Teleph Corp <Ntt> Aluminum substrate for magnetic disk
JPS627829A (en) * 1985-07-03 1987-01-14 Showa Alum Corp Aluminum alloy for magnetic disk substrate
JPH0663061B2 (en) * 1986-09-02 1994-08-17 株式会社神戸製鋼所 Method for manufacturing magnetic disk substrate material
JPH10273749A (en) * 1996-11-01 1998-10-13 Kobe Steel Ltd Aluminum alloy sheet for magnetic disk base and its production
CN1176237C (en) * 2002-03-01 2004-11-17 清华大学 Anticorrosion high-Mg low-Si aluminium alloy rich in Mn and Cr
JP5325472B2 (en) * 2007-09-05 2013-10-23 株式会社神戸製鋼所 Aluminum alloy substrate for magnetic disk and manufacturing method thereof
US20090159160A1 (en) * 2007-12-20 2009-06-25 Commonwealth Industries, Inc. Method for making high strength aluminum alloy sheet and products made by same
JP5325869B2 (en) * 2010-11-02 2013-10-23 株式会社神戸製鋼所 Aluminum alloy substrate for magnetic disk and manufacturing method thereof
JP5903031B2 (en) * 2011-12-26 2016-04-13 株式会社神戸製鋼所 Aluminum alloy substrate for magnetic disk and manufacturing method thereof
JP5973952B2 (en) * 2013-04-19 2016-08-23 株式会社神戸製鋼所 Aluminum alloy substrate for magnetic disk and manufacturing method thereof
JP6667189B2 (en) * 2015-09-29 2020-03-18 株式会社Uacj Aluminum alloy plate for tab and manufacturing method thereof
JP6679269B2 (en) * 2015-10-22 2020-04-15 株式会社Uacj Al alloy material for high energy beam welding
JP6679296B2 (en) * 2015-12-17 2020-04-15 株式会社Uacj Al alloy material for high energy beam welding and method for producing the same
CN107022698A (en) * 2016-02-02 2017-08-08 中兴通讯股份有限公司 A kind of high heat conduction pack alloy and preparation method thereof
MY185680A (en) * 2016-03-25 2021-05-30 Kobe Steel Ltd Aluminum alloy blank for magnetic disc and aluminum alloy substrate for magnetic disc
JP2019524989A (en) * 2016-06-28 2019-09-05 ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． Anodized quality aluminum alloys and related products and methods
CN106244872A (en) * 2016-08-30 2016-12-21 吉林化工学院 A kind of preparation method of the Al Mg Aluminum Alloy Plate material peculiar to vessel of high corrosion-resistant

Also Published As

Publication number Publication date
CN111187952A (en) 2020-05-22
JP6640958B1 (en) 2020-02-05
JP2020087485A (en) 2020-06-04

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