MY184175A - Method for Manufacturing Glass Substrate as a Material of Glass Substrate for Magnetic Disk, Method for Manufacturing Glass Substrate for Magnetic Disk and Method for Manufacturing Magnetic Disk - Google Patents
Method for Manufacturing Glass Substrate as a Material of Glass Substrate for Magnetic Disk, Method for Manufacturing Glass Substrate for Magnetic Disk and Method for Manufacturing Magnetic DiskInfo
- Publication number
- MY184175A MY184175A MYPI2015701207A MYPI2015701207A MY184175A MY 184175 A MY184175 A MY 184175A MY PI2015701207 A MYPI2015701207 A MY PI2015701207A MY PI2015701207 A MYPI2015701207 A MY PI2015701207A MY 184175 A MY184175 A MY 184175A
- Authority
- MY
- Malaysia
- Prior art keywords
- glass substrate
- grinding
- magnetic disk
- manufacturing
- stage
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Surface Treatment Of Glass (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Magnetic Record Carriers (AREA)
Abstract
The present invention provides a method for manufacturing a magnetic-disk glass substrate that can reduce a period of time during which no grinding is performed in grinding using fixed abrasive particles, enables the roughness of a processed surface to be suppressed to a low level without reducing a processing speed, and can manufacture a high-quality glass substrate (10). The present invention includes grinding processing for grinding a main surface of a glass substrate (10) using a lubricant and a surface plate having a grinding surface provided with fixed abrasive particles including diamond particles (5). The main surface of the glass substrate (10) is a mirror surface. The grinding processing has a first stage in which the surface of the glass substrate (10) is roughened with a higher load than a load applied in grinding and a second stage in which the surface of the glass substrate (10) is ground with a lower load than a load applied in the first stage. The first stage and the second stage are performed using the same device. FIG. 3
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012241156 | 2012-10-31 | ||
PCT/JP2013/079646 WO2014069609A1 (en) | 2012-10-31 | 2013-10-31 | Method for manufacturing glass substrate for magnetic disk and method for manufacturing magnetic disk |
Publications (1)
Publication Number | Publication Date |
---|---|
MY184175A true MY184175A (en) | 2021-03-24 |
Family
ID=50627505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI2015701207A MY184175A (en) | 2012-10-31 | 2013-10-31 | Method for Manufacturing Glass Substrate as a Material of Glass Substrate for Magnetic Disk, Method for Manufacturing Glass Substrate for Magnetic Disk and Method for Manufacturing Magnetic Disk |
Country Status (5)
Country | Link |
---|---|
JP (4) | JP6388233B2 (en) |
CN (2) | CN104641415B (en) |
MY (1) | MY184175A (en) |
SG (1) | SG11201503250RA (en) |
WO (1) | WO2014069609A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019066086A1 (en) * | 2017-09-29 | 2019-04-04 | Hoya株式会社 | Glass spacer and hard disc drive device |
WO2023136242A1 (en) * | 2022-01-11 | 2023-07-20 | 古河電気工業株式会社 | Magnetic disk substrate and magnetic disk using same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009072832A (en) * | 2007-09-18 | 2009-04-09 | Bando Chem Ind Ltd | Polishing sheet and method for production thereof |
JP5005645B2 (en) * | 2007-09-27 | 2012-08-22 | Hoya株式会社 | Manufacturing method of glass substrate for magnetic disk and manufacturing method of magnetic disk |
JP5297321B2 (en) * | 2008-10-07 | 2013-09-25 | Hoya株式会社 | Manufacturing method of glass substrate for magnetic disk |
JP5569000B2 (en) * | 2010-01-20 | 2014-08-13 | 大日本印刷株式会社 | Method for generating glass substrate for photomask |
JP5585269B2 (en) * | 2010-07-22 | 2014-09-10 | 旭硝子株式会社 | Method for manufacturing glass substrate for magnetic recording medium |
JP5690540B2 (en) * | 2010-09-30 | 2015-03-25 | Hoya株式会社 | Manufacturing method of glass substrate for information recording medium |
WO2012090655A1 (en) * | 2010-12-28 | 2012-07-05 | コニカミノルタオプト株式会社 | Method for producing glass substrate |
JP2013244570A (en) | 2012-05-28 | 2013-12-09 | Asahi Glass Co Ltd | Polishing device and polishing method |
-
2013
- 2013-10-31 CN CN201380048018.2A patent/CN104641415B/en active Active
- 2013-10-31 SG SG11201503250RA patent/SG11201503250RA/en unknown
- 2013-10-31 MY MYPI2015701207A patent/MY184175A/en unknown
- 2013-10-31 JP JP2014544600A patent/JP6388233B2/en active Active
- 2013-10-31 CN CN201810413657.9A patent/CN108564970B/en active Active
- 2013-10-31 WO PCT/JP2013/079646 patent/WO2014069609A1/en active Application Filing
-
2018
- 2018-08-03 JP JP2018146641A patent/JP6642864B2/en active Active
-
2019
- 2019-09-23 JP JP2019172401A patent/JP6960970B2/en active Active
-
2021
- 2021-06-30 JP JP2021108978A patent/JP7270682B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
JP6642864B2 (en) | 2020-02-12 |
JP2020023047A (en) | 2020-02-13 |
JP7270682B2 (en) | 2023-05-10 |
JP2018200743A (en) | 2018-12-20 |
SG11201503250RA (en) | 2015-06-29 |
CN104641415A (en) | 2015-05-20 |
JP6388233B2 (en) | 2018-09-12 |
JP2021167062A (en) | 2021-10-21 |
JP6960970B2 (en) | 2021-11-05 |
WO2014069609A1 (en) | 2014-05-08 |
CN108564970B (en) | 2020-11-06 |
JPWO2014069609A1 (en) | 2016-09-08 |
CN108564970A (en) | 2018-09-21 |
CN104641415B (en) | 2018-06-01 |
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