JP2008282539A - 磁気記録媒体用ガラス基板及びその製造方法 - Google Patents
磁気記録媒体用ガラス基板及びその製造方法 Download PDFInfo
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- JP2008282539A JP2008282539A JP2008215300A JP2008215300A JP2008282539A JP 2008282539 A JP2008282539 A JP 2008282539A JP 2008215300 A JP2008215300 A JP 2008215300A JP 2008215300 A JP2008215300 A JP 2008215300A JP 2008282539 A JP2008282539 A JP 2008282539A
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- JP
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- Prior art keywords
- glass substrate
- peripheral end
- recording medium
- magnetic recording
- end surface
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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- 239000011521 glass Substances 0.000 title claims abstract description 146
- 239000000758 substrate Substances 0.000 title claims abstract description 125
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims abstract description 90
- 238000005498 polishing Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 11
- 239000002344 surface layer Substances 0.000 claims description 9
- 239000005368 silicate glass Substances 0.000 claims description 8
- 238000003426 chemical strengthening reaction Methods 0.000 claims description 7
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 description 19
- 239000006061 abrasive grain Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 239000012141 concentrate Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 3
- 235000012489 doughnuts Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910001415 sodium ion Inorganic materials 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000005354 aluminosilicate glass Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 239000005329 float glass Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000005341 toughened glass Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- VSAISIQCTGDGPU-UHFFFAOYSA-N phosphorus trioxide Inorganic materials O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 0.000 description 1
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008215300A JP2008282539A (ja) | 2008-08-25 | 2008-08-25 | 磁気記録媒体用ガラス基板及びその製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008215300A JP2008282539A (ja) | 2008-08-25 | 2008-08-25 | 磁気記録媒体用ガラス基板及びその製造方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001143534A Division JP4274708B2 (ja) | 2001-05-14 | 2001-05-14 | 磁気記録媒体用ガラス基板及びその製造方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010283162A Division JP2011108355A (ja) | 2010-12-20 | 2010-12-20 | 磁気記録媒体用ガラス基板及びその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008282539A true JP2008282539A (ja) | 2008-11-20 |
| JP2008282539A5 JP2008282539A5 (enExample) | 2009-01-08 |
Family
ID=40143203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008215300A Pending JP2008282539A (ja) | 2008-08-25 | 2008-08-25 | 磁気記録媒体用ガラス基板及びその製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2008282539A (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012090364A1 (ja) * | 2010-12-28 | 2012-07-05 | コニカミノルタオプト株式会社 | 磁気記録媒体用ガラス基板の製造方法 |
| JP2015189544A (ja) * | 2014-03-28 | 2015-11-02 | 京セラ株式会社 | サクションローラおよび搬送装置 |
| JP2016154060A (ja) * | 2013-12-27 | 2016-08-25 | Hoya株式会社 | 磁気ディスク用基板および磁気ディスク |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07249223A (ja) * | 1994-03-09 | 1995-09-26 | Shin Etsu Chem Co Ltd | 磁気記録媒体基板 |
| JPH09102122A (ja) * | 1995-10-03 | 1997-04-15 | Kao Corp | 記録媒体用基板 |
| JPH10154321A (ja) * | 1996-09-30 | 1998-06-09 | Hoya Corp | 磁気記録媒体用ガラス基板、磁気記録媒体、及びそれらの製造方法 |
| JPH11265506A (ja) * | 1998-03-17 | 1999-09-28 | Asahi Techno Glass Corp | 磁気ディスク用ガラス基板及び磁気ディスク |
-
2008
- 2008-08-25 JP JP2008215300A patent/JP2008282539A/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07249223A (ja) * | 1994-03-09 | 1995-09-26 | Shin Etsu Chem Co Ltd | 磁気記録媒体基板 |
| JPH09102122A (ja) * | 1995-10-03 | 1997-04-15 | Kao Corp | 記録媒体用基板 |
| JPH10154321A (ja) * | 1996-09-30 | 1998-06-09 | Hoya Corp | 磁気記録媒体用ガラス基板、磁気記録媒体、及びそれらの製造方法 |
| JPH11265506A (ja) * | 1998-03-17 | 1999-09-28 | Asahi Techno Glass Corp | 磁気ディスク用ガラス基板及び磁気ディスク |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012090364A1 (ja) * | 2010-12-28 | 2012-07-05 | コニカミノルタオプト株式会社 | 磁気記録媒体用ガラス基板の製造方法 |
| JP5024496B2 (ja) * | 2010-12-28 | 2012-09-12 | コニカミノルタアドバンストレイヤー株式会社 | 磁気記録媒体用ガラス基板の製造方法 |
| US9202505B2 (en) | 2010-12-28 | 2015-12-01 | Konica Minolta, Inc. | Method for manufacturing glass substrate for magnetic recording medium |
| JP2016154060A (ja) * | 2013-12-27 | 2016-08-25 | Hoya株式会社 | 磁気ディスク用基板および磁気ディスク |
| JP2015189544A (ja) * | 2014-03-28 | 2015-11-02 | 京セラ株式会社 | サクションローラおよび搬送装置 |
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