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MY156171A - Method for manufacturing magnetic disk glass substrate - Google Patents

Method for manufacturing magnetic disk glass substrate

Info

Publication number
MY156171A
MY156171A MYPI2012701274A MYPI2012701274A MY156171A MY 156171 A MY156171 A MY 156171A MY PI2012701274 A MYPI2012701274 A MY PI2012701274A MY PI2012701274 A MYPI2012701274 A MY PI2012701274A MY 156171 A MY156171 A MY 156171A
Authority
MY
Malaysia
Prior art keywords
laminate
magnetic disk
disk glass
grindstone
core drill
Prior art date
Application number
MYPI2012701274A
Inventor
Takahashi Takeyoshi
Ueda Masaaki
Original Assignee
Hoya Corp
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 Hoya Corp filed Critical Hoya Corp
Publication of MY156171A publication Critical patent/MY156171A/en

Links

Classifications

    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/06—Grinders for cutting-off
    • B24B27/0641—Grinders for cutting-off for grinding holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/18—Wheels of special form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

THERE IS PROVIDED A METHOD FOR MANUFACTURING A MAGNETIC DISK GLASS SUBSTRATE THAT, WHEN A PLURALITY OF MAGNETIC DISK GLASS SUBSTRATES ARE PRODUCED FROM A LAMINATE COMPOSED OF A PLURALITY OF LAMINATED GLASS SHEETS, MAKES IT POSSIBLE TO MAINTAIN A CYCLE TIME BENEFIT OBTAINED BY PROCESSING USING LAMINATION, AND IMPROVE THE ROUNDNESS OF THE INNER HOLE OF THE MAGNETIC DISK GLASS SUBSTRATES TO A REQUIRED LEVEL. IN A LAMINATE PREPARATION STEP, A LAMINATE (5) INCLUDING A PLURALITY OF LAMINATED GLASS SHEETS IS PREPARED. IN A GRINDING STEP, THE LAMINATE (5) IS GROUND INTO A CYLINDRICAL SHAPE BY CAUSING A UNITARY CORE DRILL (20) TO ROTATE AROUND AN AXIS THEREOF AND CAUSING THE CORE DRILL (20) TO MOVE IN A LAMINATING DIRECTION OF THE LAMINATE (5), THE CORE DRILL INCLUDING A CYLINDRICAL OUTER GRINDSTONE HAVING A LARGE DIAMETER AND A CYLINDRICAL INNER GRINDSTONE HAVING A SMALL DIAMETER DISPOSED COAXIALLY. AT THIS TIME, THE GRIT SIZE OF THE INNER GRINDSTONE IS SET TO BE LARGER THAN THE GRIT SIZE OF THE OUTER GRINDSTONE. (FIG. 2)
MYPI2012701274A 2010-09-30 2011-09-30 Method for manufacturing magnetic disk glass substrate MY156171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010222226 2010-09-30

Publications (1)

Publication Number Publication Date
MY156171A true MY156171A (en) 2016-01-15

Family

ID=45892394

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2012701274A MY156171A (en) 2010-09-30 2011-09-30 Method for manufacturing magnetic disk glass substrate

Country Status (4)

Country Link
JP (1) JP5356606B2 (en)
CN (1) CN102959626B (en)
MY (1) MY156171A (en)
WO (1) WO2012042906A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014024121A (en) * 2012-07-24 2014-02-06 Allied Material Corp Super-abrasive tool and method for drilling workpiece using the same, and method for cutting out cylindrical object
JP6115934B2 (en) * 2012-12-28 2017-04-19 Hoya株式会社 Temporary fixing material for glass plate bonding, glass processing method, and manufacturing method of cover glass for electronic device
KR20150107351A (en) * 2014-03-14 2015-09-23 주식회사 소닉스 A free shape cutting device of a multi-layered high hardness material by the using of a microwave
CN105084749A (en) * 2014-05-04 2015-11-25 黄家军 Glass disc cutting method
CN107004431B (en) * 2014-12-31 2019-09-13 Hoya株式会社 Manufacturing method of substrate for magnetic disk and grindstone for grinding
KR101876120B1 (en) * 2017-02-06 2018-07-11 이종운 Rock drilling apparatus and Rock cutting method using the same
US10780549B2 (en) 2017-12-26 2020-09-22 Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. Polishing device
CN108145600B (en) * 2017-12-26 2019-12-03 武汉华星光电半导体显示技术有限公司 Grinding device
SG11202006455TA (en) 2018-01-31 2020-08-28 Hoya Corp Method for producing glass substrate for magnetic disk
CN109080014A (en) * 2018-08-31 2018-12-25 汉能新材料科技有限公司 A kind of brill processing method
JP2020188102A (en) * 2019-05-14 2020-11-19 株式会社ディスコ Method for manufacturing circular substrate
JP2020188101A (en) * 2019-05-14 2020-11-19 株式会社ディスコ Manufacturing method of circular substrate
SE546148C2 (en) * 2022-04-21 2024-06-11 Husqvarna Ab Electric power cutter with a vibration function

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1265954A (en) * 1999-03-09 2000-09-13 广东工业大学 A new type of diamond grinding wheel
JP2000326235A (en) * 1999-05-17 2000-11-28 Inst Of Physical & Chemical Res ELID grinding wheel and ELID surface grinding device using the same
JP5344806B2 (en) * 2006-09-29 2013-11-20 Ｈｏｙａ株式会社 Method for manufacturing glass substrate for magnetic disk, glass substrate polishing apparatus for magnetic disk, and method for manufacturing magnetic disk
JP4591431B2 (en) * 2006-10-11 2010-12-01 コニカミノルタオプト株式会社 Manufacturing method of glass disk for information recording medium and manufacturing apparatus used for the method
JP4252093B2 (en) * 2007-01-18 2009-04-08 昭和電工株式会社 Disc-shaped substrate grinding method and grinding apparatus
JP2010003365A (en) * 2008-06-20 2010-01-07 Furukawa Electric Co Ltd:The Manufacturing method of glass substrate

Also Published As

Publication number Publication date
CN102959626A (en) 2013-03-06
JP5356606B2 (en) 2013-12-04
JPWO2012042906A1 (en) 2014-02-06
WO2012042906A1 (en) 2012-04-05
CN102959626B (en) 2016-04-13

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