MY147406A - Aluminum alloy substrate for magnetic disk and production method thereof - Google Patents

Aluminum alloy substrate for magnetic disk and production method thereof

Info

Publication number
MY147406A
MY147406A MYPI20083312A MYPI20083312A MY147406A MY 147406 A MY147406 A MY 147406A MY PI20083312 A MYPI20083312 A MY PI20083312A MY PI20083312 A MYPI20083312 A MY PI20083312A MY 147406 A MY147406 A MY 147406A
Authority
MY
Malaysia
Prior art keywords
aluminum alloy
alloy substrate
mass
production method
plate material
Prior art date
Application number
MYPI20083312A
Inventor
Makoto Morishita
Hidetoshi Umeda
Yoshinori Kato
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 MY147406A publication Critical patent/MY147406A/en

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  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Continuous Casting (AREA)

Abstract

ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISK AND PRODUCTION METHOD THEREOF THE INVENTION PROVIDES AN ALUMINUM ALLOY SUBSTRATE FOR 5 MAGNETIC DISKS EXCELLENT IN STRENGTH AND IMPROVED SURFACE SMOOTHNESS AFTER NIP PLATING AND A PRODUCTION METHOD THEREOF. THE ALUMINUM ALLOY SUBSTRATE FOR MAGNETIC DISKS IS PRODUCED BY CASTING A MELT OF AN ALUMINUM ALLOY CONTAINING 3.5 TO 15BY MASS OF MG, 0.01 TO 0.1BY MASS OF SI AND FE, RESPECTIVELY, 10 0.02 TO 0.35BY MASS OF CR, AND FURTHER AT LEAST ONE KIND OF CU AND ZN IN A PRESCRIBED CONTENT INTO A PLATE MATERIAL BY A THIN PLATE CONTINUOUS CASTING METHOD; PUNCHING THE PLATE MATERIAL INTO A CIRCULAR SHAPE; PRESSURE ANNEALING THE PUNCHED PLATE MATERIAL AT THE HIGHER TEMPERATURE OR MORE BETWEEN 3000C 15 AND (14.7 X (MG] + 204) OC ( [MG) : THE CONTENT OF MG (BY MASS) IN THE ALUMINUM ALLOY) ; AND THEREAFTER COOLING AT A PRESCRIBED RATE OR HIGHER TO PLANARIZE, WHEREIN A MAXIMUM LENGTH OF AN AL-FG BASED INTERMETALLIC COMPOUND ON THE SURFACE IS 7 PM OR SHORTER; A MAXIMUM LENGTH OF A MG-SI BASED INTERMETALLIC COMPOUND ON THE 20 SURFACE IS 4 PM OR SHORTER; AND THE SURFACE AREA RATIO OF A13M92 PHASE IS 1OR LOWER.
MYPI20083312A 2007-09-05 2008-08-28 Aluminum alloy substrate for magnetic disk and production method thereof MY147406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007229880 2007-09-05

Publications (1)

Publication Number Publication Date
MY147406A true MY147406A (en) 2012-11-30

Family

ID=40461879

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20083312A MY147406A (en) 2007-09-05 2008-08-28 Aluminum alloy substrate for magnetic disk and production method thereof

Country Status (3)

Country Link
JP (1) JP5325472B2 (en)
CN (1) CN101381828B (en)
MY (1) MY147406A (en)

Families Citing this family (21)

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Publication number Priority date Publication date Assignee Title
JP5632136B2 (en) 2009-03-27 2014-11-26 スズキ株式会社 Disintegrating mold and manufacturing method thereof
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
JP2013112884A (en) * 2011-11-30 2013-06-10 Furukawa-Sky Aluminum Corp Aluminum alloy substrate and method for producing the same
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
JP5833987B2 (en) 2012-07-26 2015-12-16 株式会社神戸製鋼所 Aluminum alloy excellent in anodizing property and anodized aluminum alloy member
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
JP5762612B1 (en) 2014-09-27 2015-08-12 株式会社Uacj Aluminum alloy plate for magnetic disk substrate, manufacturing method thereof, and manufacturing method of magnetic disk
CN104941999B (en) * 2015-06-30 2017-01-11 辽宁科技大学 Rolling method of high-purity aluminum magnesium alloy substrate for mechanical hard 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
CN105568084A (en) * 2015-12-31 2016-05-11 新疆众和股份有限公司 Aluminum base aluminum magnesium alloy substrate for hard disk and manufacturing process of aluminum base aluminum magnesium alloy substrate
MY176729A (en) * 2016-04-27 2020-08-20 Furukawa Electric Co Ltd Substrate for a magnetic disk
WO2018025769A1 (en) * 2016-08-01 2018-02-08 株式会社Uacj Aluminum alloy sheet for magnetic disc substrate, production method therefor, and magnetic disc
JP2018059176A (en) * 2016-10-07 2018-04-12 株式会社神戸製鋼所 Aluminum alloy sheet and anodic oxidation treated aluminum alloy sheet
TWI755466B (en) * 2016-12-28 2022-02-21 日商東洋鋼鈑股份有限公司 Substrate for hard disk and hard disk device using the same
JP6832179B2 (en) * 2017-02-03 2021-02-24 昭和電工株式会社 Magnetic recording medium board and hard disk drive
CN108486435B (en) * 2018-04-28 2019-11-12 中铝东南材料院（福建）科技有限公司 A kind of high flat degree hard disk aluminium alloy base plate and preparation 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
JP6908741B2 (en) * 2019-03-14 2021-07-28 株式会社神戸製鋼所 Aluminum alloy blanks for magnetic disks and aluminum alloy substrates for magnetic disks
JP7132289B2 (en) * 2019-12-09 2022-09-06 株式会社神戸製鋼所 Aluminum alloy plate for magnetic disk, aluminum alloy blank for magnetic disk, aluminum alloy substrate for magnetic disk, and method for producing aluminum alloy plate for magnetic disk
JP7433262B2 (en) * 2020-03-30 2024-02-19 日本碍子株式会社 Method for manufacturing Cu-Ni-Sn alloy and cooler used therein
CN112454160A (en) * 2020-10-27 2021-03-09 宜兴市科兴合金材料有限公司 Double-side polished molybdenum substrate, preparation method thereof and application thereof in LED light-emitting chip

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3794930B2 (en) * 2001-03-15 2006-07-12 株式会社神戸製鋼所 Aluminum alloy for magnetic disk and substrate for magnetic disk
JP2005194590A (en) * 2004-01-08 2005-07-21 Kobe Steel Ltd Aluminum alloy substrate for magnetic disk, and its production method
JP2005344173A (en) * 2004-06-03 2005-12-15 Kobe Steel Ltd Aluminum-alloy substrate for magnetic disk, and its manufacturing method
JP4490850B2 (en) * 2005-03-02 2010-06-30 株式会社神戸製鋼所 Aluminum alloy substrate for magnetic disk and manufacturing method thereof

Also Published As

Publication number Publication date
CN101381828B (en) 2010-11-10
JP5325472B2 (en) 2013-10-23
JP2009079286A (en) 2009-04-16
CN101381828A (en) 2009-03-11

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