MY183852A - Method for manufacturing magnetic-disk glass substrate and method for manufacturing magnetic disk - Google Patents
Method for manufacturing magnetic-disk glass substrate and method for manufacturing magnetic diskInfo
- Publication number
- MY183852A MY183852A MYPI2016701745A MYPI2016701745A MY183852A MY 183852 A MY183852 A MY 183852A MY PI2016701745 A MYPI2016701745 A MY PI2016701745A MY PI2016701745 A MYPI2016701745 A MY PI2016701745A MY 183852 A MY183852 A MY 183852A
- Authority
- MY
- Malaysia
- Prior art keywords
- polishing
- glass substrate
- manufacturing magnetic
- disk
- main surfaces
- Prior art date
Links
Classifications
-
- 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
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/042—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor
- B24B37/044—Lapping machines or devices; Accessories designed for working plane surfaces operating processes therefor characterised by the composition of the lapping agent
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1454—Abrasive powders, suspensions and pastes for polishing
- C09K3/1463—Aqueous liquid suspensions
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A method for manufacturing a magnetic-disk glass substrate includes a polishing processing for polishing main surfaces on both sides of a glass substrate by pressing polishing pads against the main surfaces and moving the main surfaces and the polishing pads relative to each other while supplying a polishing slurry containing colloidal silica as polishing abrasive particles between the glass substrate and the polishing pads.The polishing slurry is producedby, before the main surfaces are polished, adjusting an original polishing slurry that serves as a basis of the polishing slurry to be used in the polishing processing to an acid state and removing, through filter processing,a silica deposit from the original polishing slurry generated by adjusting the original polishing slurry to the acid state. [FIG. 1]
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013236491 | 2013-11-15 | ||
PCT/JP2014/080373 WO2015072569A1 (en) | 2013-11-15 | 2014-11-17 | Method for manufacturing glass substrate for magnetic disk and method for manufacturing magnetic disk |
Publications (1)
Publication Number | Publication Date |
---|---|
MY183852A true MY183852A (en) | 2021-03-17 |
Family
ID=53057501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI2016701745A MY183852A (en) | 2013-11-15 | 2014-11-17 | Method for manufacturing magnetic-disk glass substrate and method for manufacturing magnetic disk |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP6280561B2 (en) |
CN (1) | CN105745708B (en) |
MY (1) | MY183852A (en) |
WO (1) | WO2015072569A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108747661A (en) * | 2018-06-28 | 2018-11-06 | 湖北晶润电子科技有限公司 | A kind of glass sander |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007098485A (en) * | 2005-09-30 | 2007-04-19 | Hoya Glass Disk Thailand Ltd | Glass substrate for magnetic record medium and manufacturing method of magnetic disk |
DE102007008232A1 (en) * | 2007-02-20 | 2008-08-21 | Evonik Degussa Gmbh | Dispersion containing ceria and colloidal silica |
CN103119122B (en) * | 2010-09-24 | 2014-10-08 | 花王株式会社 | Manufacturing method of polishing liquid composition |
JP5698989B2 (en) * | 2011-01-07 | 2015-04-08 | 花王株式会社 | Method for producing polishing composition |
WO2012090426A1 (en) * | 2010-12-27 | 2012-07-05 | コニカミノルタオプト株式会社 | Method of manufacturing a glass substrate for a hard disk |
JP5673957B2 (en) * | 2011-10-27 | 2015-02-18 | 日産化学工業株式会社 | Porous secondary agglomerated silica sol and method for producing the same |
MY168569A (en) * | 2011-12-30 | 2018-11-13 | Hoya Corp | Method of manufacturing a substrate, method of manufacturing a magnetic disk glass substrate and method of manufacturing a magnetic disk |
-
2014
- 2014-11-17 JP JP2015547817A patent/JP6280561B2/en active Active
- 2014-11-17 WO PCT/JP2014/080373 patent/WO2015072569A1/en active Application Filing
- 2014-11-17 CN CN201480061961.1A patent/CN105745708B/en active Active
- 2014-11-17 MY MYPI2016701745A patent/MY183852A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN105745708B (en) | 2019-03-19 |
WO2015072569A1 (en) | 2015-05-21 |
CN105745708A (en) | 2016-07-06 |
JPWO2015072569A1 (en) | 2017-03-16 |
JP6280561B2 (en) | 2018-02-14 |
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