MY185680A - Aluminum alloy blank for magnetic disc and aluminum alloy substrate for magnetic disc - Google Patents

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

Info

Publication number
MY185680A
MY185680A MYPI2018703446A MYPI2018703446A MY185680A MY 185680 A MY185680 A MY 185680A MY PI2018703446 A MYPI2018703446 A MY PI2018703446A MY PI2018703446 A MYPI2018703446 A MY PI2018703446A MY 185680 A MY185680 A MY 185680A
Authority
MY
Malaysia
Prior art keywords
aluminum alloy
magnetic disc
less
mass
blank
Prior art date
Application number
MYPI2018703446A
Inventor
Hideyuki Komuro
Hidetoshi Umeda
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
Priority claimed from JP2016075126A external-priority patent/JP6684139B2/en
Priority claimed from JP2016238380A external-priority patent/JP6684198B2/en
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of MY185680A publication Critical patent/MY185680A/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
    • 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
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
    • G11B5/73919—Aluminium or titanium elemental or alloy substrates
    • 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
    • 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
    • C22C21/10—Alloys based on aluminium with zinc as the next major constituent
    • 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
    • C22C21/12—Alloys based on aluminium with copper as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/053—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working

Abstract

For the aluminum alloy blank for a magnetic disc as in an embodiment of the present invention: Mg is 3.00 mass% or less and Si is 1.00 mass% or less; the blank contains at least one of Fe: 6.0 mass% or less, Mn: 10.0 mass% or less, and Ni: 10.0 mass% or less, the total amount thereof being 10.0 mass% or less; the balance consists of Al and unavoidable impurities; the area ratio of the surface occupied by intermetallic compounds is 50-40%; and the total area ratio of simple Si and Mg-Si intermetallic compound is 1% or less.
MYPI2018703446A 2016-03-25 2017-03-10 Aluminum alloy blank for magnetic disc and aluminum alloy substrate for magnetic disc MY185680A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016062743 2016-03-25
JP2016075126A JP6684139B2 (en) 2016-04-04 2016-04-04 Aluminum alloy blanks for magnetic disks and aluminum alloy substrates for magnetic disks
JP2016238380A JP6684198B2 (en) 2016-03-25 2016-12-08 Aluminum alloy blanks for magnetic disks and aluminum alloy substrates for magnetic disks
PCT/JP2017/009809 WO2017163943A1 (en) 2016-03-25 2017-03-10 Aluminum alloy blank for magnetic disc and aluminum alloy substrate for magnetic disc

Publications (1)

Publication Number Publication Date
MY185680A true MY185680A (en) 2021-05-30

Family

ID=59899397

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2018703446A MY185680A (en) 2016-03-25 2017-03-10 Aluminum alloy blank for magnetic disc and aluminum alloy substrate for magnetic disc

Country Status (2)

Country Link
MY (1) MY185680A (en)
WO (1) WO2017163943A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6402229B1 (en) 2017-09-28 2018-10-10 株式会社Uacj Aluminum alloy substrate for magnetic disk, manufacturing method thereof, and magnetic disk using the aluminum alloy substrate for magnetic disk
JP7145731B2 (en) * 2018-11-08 2022-10-03 古河電気工業株式会社 Blank material for magnetic disk and manufacturing method thereof
JP6640958B1 (en) * 2018-11-15 2020-02-05 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
JP6826679B2 (en) * 2019-03-14 2021-02-03 株式会社神戸製鋼所 Aluminum alloy blanks for magnetic disks and aluminum alloy substrates for magnetic disks
WO2020184037A1 (en) * 2019-03-14 2020-09-17 株式会社神戸製鋼所 Aluminum alloy blank for magnetic disk and aluminum alloy substrate for magnetic disk

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01225739A (en) * 1988-03-03 1989-09-08 Furukawa Alum Co Ltd Aluminum alloy for magnetic disk substrate
JP3710009B2 (en) * 1996-02-28 2005-10-26 古河電気工業株式会社 Aluminum alloy plate for magnetic disk substrate and manufacturing method thereof
JP4477999B2 (en) * 2004-11-30 2010-06-09 株式会社神戸製鋼所 Method for manufacturing aluminum alloy plate for magnetic disk, aluminum alloy plate for magnetic disk, and aluminum alloy substrate for magnetic disk
JP5815153B1 (en) * 2015-07-02 2015-11-17 株式会社神戸製鋼所 Aluminum alloy blank for magnetic disk and aluminum alloy substrate for magnetic disk

Also Published As

Publication number Publication date
WO2017163943A1 (en) 2017-09-28

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