JP7523579B2 - ガラス板の製造方法、磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法、及び円環形状のガラス板 - Google Patents

ガラス板の製造方法、磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法、及び円環形状のガラス板 Download PDF

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JP7523579B2
JP7523579B2 JP2022565407A JP2022565407A JP7523579B2 JP 7523579 B2 JP7523579 B2 JP 7523579B2 JP 2022565407 A JP2022565407 A JP 2022565407A JP 2022565407 A JP2022565407 A JP 2022565407A JP 7523579 B2 JP7523579 B2 JP 7523579B2
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Prior art keywords
glass plate
glass
peripheral end
main surface
end surface
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JPWO2022114060A1 (https=
JPWO2022114060A5 (https=
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修平 東
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Hoya Corp
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Hoya Corp
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
    • C03B33/082—Severing cooled glass by fusing, i.e. by melting through the glass using a focussed radiation beam, e.g. laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/354—Working by laser beam, e.g. welding, cutting or boring for surface treatment by melting
    • 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B24B7/241—Methods
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B21/00—Severing glass sheets, tubes or rods while still plastic
    • C03B21/06—Severing glass sheets, tubes or rods while still plastic by flashing-off, burning-off or fusing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
    • C03B29/02—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a discontinuous way
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
    • C03B33/0222—Scoring using a focussed radiation beam, e.g. laser
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/09—Severing cooled glass by thermal shock
    • C03B33/091—Severing cooled glass by thermal shock using at least one focussed radiation beam, e.g. laser beam
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/001—General methods for coating; Devices therefor
    • C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C19/00—Surface treatment of glass, not in the form of fibres or filaments, by mechanical means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/0005—Other surface treatment of glass not in the form of fibres or filaments by irradiation
    • C03C23/0025—Other surface treatment of glass not in the form of fibres or filaments by irradiation by a laser beam
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C2218/00—Methods for coating glass
    • C03C2218/30—Aspects of methods for coating glass not covered above
    • C03C2218/31—Pre-treatment

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Laser Beam Processing (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Surface Treatment Of Glass (AREA)
JP2022565407A 2020-11-25 2021-11-25 ガラス板の製造方法、磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法、及び円環形状のガラス板 Active JP7523579B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
VN1202006805 2020-11-25
VN1-2020-06805 2020-11-25
PCT/JP2021/043198 WO2022114060A1 (ja) 2020-11-25 2021-11-25 ガラス板の製造方法、磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法、及び円環形状のガラス板

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JPWO2022114060A1 JPWO2022114060A1 (https=) 2022-06-02
JPWO2022114060A5 JPWO2022114060A5 (https=) 2023-11-29
JP7523579B2 true JP7523579B2 (ja) 2024-07-26

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JP2022565407A Active JP7523579B2 (ja) 2020-11-25 2021-11-25 ガラス板の製造方法、磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法、及び円環形状のガラス板

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US (1) US12595202B2 (https=)
JP (1) JP7523579B2 (https=)
CN (1) CN116457313A (https=)
WO (1) WO2022114060A1 (https=)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003160348A (ja) 2001-11-21 2003-06-03 Nippon Sheet Glass Co Ltd 情報記録媒体用ガラス基板及びその製造方法
JP2004035333A (ja) 2002-07-04 2004-02-05 National Institute Of Advanced Industrial & Technology ガラス材料の加工方法
WO2009050938A1 (ja) 2007-10-16 2009-04-23 Mitsuboshi Diamond Industrial Co., Ltd. 脆性材料基板のｕ字状溝加工方法およびこれを用いた除去加工方法およびくり抜き加工方法および面取り方法
JP2013206517A (ja) 2012-03-29 2013-10-07 Konica Minolta Inc 情報記録媒体用ガラス基板の製造方法
WO2020111282A1 (ja) 2018-11-30 2020-06-04 Hoya株式会社 ガラス板の製造方法、ガラス板の面取り方法、および磁気ディスクの製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2612332B2 (ja) 1989-03-13 1997-05-21 株式会社東海理化電機製作所 ガラス部材の面取り方法
JP2010519164A (ja) 2007-02-23 2010-06-03 コーニング インコーポレイテッド 熱的エッジ仕上げ
JP5781845B2 (ja) * 2011-06-30 2015-09-24 Hoya株式会社 Ｈｄｄ用ガラス基板、ｈｄｄ用ガラス基板の製造方法、及びｈｄｄ用磁気記録媒体
CN113924276B (zh) * 2019-06-28 2024-10-01 Hoya株式会社 玻璃板的制造方法和磁盘的制造方法
WO2021020587A1 (ja) 2019-07-31 2021-02-04 Hoya株式会社 円環形状のガラス板の製造方法、磁気ディスク用ガラス基板の製造方法、磁気ディスクの製造方法、円環形状のガラス板、磁気ディスク用ガラス基板、及び磁気ディスク
MY209556A (en) 2019-08-20 2025-07-20 Hoya Corp Method for producing glass plate, method for producing glass substrate for magnetic disk, and method for producing magnetic disk

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003160348A (ja) 2001-11-21 2003-06-03 Nippon Sheet Glass Co Ltd 情報記録媒体用ガラス基板及びその製造方法
JP2004035333A (ja) 2002-07-04 2004-02-05 National Institute Of Advanced Industrial & Technology ガラス材料の加工方法
WO2009050938A1 (ja) 2007-10-16 2009-04-23 Mitsuboshi Diamond Industrial Co., Ltd. 脆性材料基板のｕ字状溝加工方法およびこれを用いた除去加工方法およびくり抜き加工方法および面取り方法
JP2013206517A (ja) 2012-03-29 2013-10-07 Konica Minolta Inc 情報記録媒体用ガラス基板の製造方法
WO2020111282A1 (ja) 2018-11-30 2020-06-04 Hoya株式会社 ガラス板の製造方法、ガラス板の面取り方法、および磁気ディスクの製造方法

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WO2022114060A1 (ja) 2022-06-02
JPWO2022114060A1 (https=) 2022-06-02
CN116457313A (zh) 2023-07-18
US20240018031A1 (en) 2024-01-18
US12595202B2 (en) 2026-04-07

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