ATE268495T1 - Verfahren zum spritzgiessen von compact discs - Google Patents

Verfahren zum spritzgiessen von compact discs

Info

Publication number
ATE268495T1
ATE268495T1 AT97941154T AT97941154T ATE268495T1 AT E268495 T1 ATE268495 T1 AT E268495T1 AT 97941154 T AT97941154 T AT 97941154T AT 97941154 T AT97941154 T AT 97941154T AT E268495 T1 ATE268495 T1 AT E268495T1
Authority
AT
Austria
Prior art keywords
compact discs
injection molding
injection
molding compact
mold cavity
Prior art date
Application number
AT97941154T
Other languages
English (en)
Inventor
William Mueller
Edward Pickutoski
Original Assignee
Wea Mfg Inc
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 Wea Mfg Inc filed Critical Wea Mfg Inc
Application granted granted Critical
Publication of ATE268495T1 publication Critical patent/ATE268495T1/de

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/263—Preparing and using a stamper, e.g. pressing or injection molding substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B29C2043/5833—Measuring, controlling or regulating movement of moulds or mould parts, e.g. opening or closing, actuating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/5615—Compression stroke, e.g. length thereof
    • B29C2045/562—Velocity profiles of the compression stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/563—Enlarging the mould cavity during injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
AT97941154T 1996-09-05 1997-09-05 Verfahren zum spritzgiessen von compact discs ATE268495T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70761896A 1996-09-05 1996-09-05
PCT/IB1997/001214 WO1998010417A1 (en) 1996-09-05 1997-09-05 Injection molding of compact discs

Publications (1)

Publication Number Publication Date
ATE268495T1 true ATE268495T1 (de) 2004-06-15

Family

ID=24842422

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97941154T ATE268495T1 (de) 1996-09-05 1997-09-05 Verfahren zum spritzgiessen von compact discs

Country Status (6)

Country Link
EP (1) EP0858656B1 (de)
JP (1) JPH11514601A (de)
AT (1) ATE268495T1 (de)
AU (1) AU720148B2 (de)
DE (1) DE69729369T2 (de)
WO (1) WO1998010417A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10048861A1 (de) * 2000-10-02 2002-04-25 Krauss Maffei Kunststofftech Verfahren und Vorrichtung zum Herstellen von dickwandigen Formteilen
ES2225769T3 (es) * 2001-01-26 2005-03-16 Coraltech Limited Molde y metodo de moldeo por inyeccion-compresion.
DE10141858B4 (de) 2001-08-27 2010-06-17 Kraussmaffei Technologies Gmbh Verfahren und Vorrichtung zum Herstellen flächenartiger Kunststoff-Formteile, insbesondere Kunststoffscheiben
WO2004103682A1 (ja) * 2003-05-22 2004-12-02 Sumitomo Heavy Industries, Ltd. 成形方法、成形用金型、成形品及び成形機
DE102004051250A1 (de) * 2004-10-20 2006-04-27 Demag Ergotech Gmbh Verfahren zum Herstellen von langfaserverstärkten Kunststoffformteilen
DE102005013975A1 (de) 2005-03-26 2006-09-28 Krauss-Maffei Kunststofftechnik Gmbh Vorrichtung und Verfahren zur Herstellung von optischen Datenträgern sowie optische Datenträger

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6195919A (ja) * 1984-10-18 1986-05-14 Sony Corp 射出成形機
JPH0675888B2 (ja) * 1986-11-28 1994-09-28 ソニー株式会社 デイスクの射出成形方法
US4849151A (en) * 1986-12-19 1989-07-18 Matsushita Electric Industrial Co., Ltd. Method of molding plastic and injection compression molding apparatus using elongatable tie bars
JP2642158B2 (ja) * 1988-08-16 1997-08-20 住友重機械工業株式会社 光ディスク基板成形用金型
JPH0733034B2 (ja) * 1988-09-05 1995-04-12 富士写真フイルム株式会社 射出圧縮成形用金型
US5015426A (en) * 1989-05-18 1991-05-14 Galic Maus Ventures Precision single cavity and multicavity plastic injection molding via an adaptive mold process
US5068065A (en) * 1990-07-31 1991-11-26 Galic Maus Ventures Faster cycling sprue method and apparatus for injection molding plastic optical disks
JPH05205323A (ja) * 1992-01-27 1993-08-13 Matsushita Electric Ind Co Ltd 光ディスク基板の製造方法
JP2785560B2 (ja) * 1992-01-28 1998-08-13 松下電器産業株式会社 光ディスク基板の製造方法
JP2597529B2 (ja) * 1993-08-20 1997-04-09 日精樹脂工業株式会社 射出成形方法
JP3343628B2 (ja) * 1993-08-27 2002-11-11 日本ジーイープラスチックス株式会社 薄肉成形方法
JP3431348B2 (ja) * 1994-06-20 2003-07-28 松下電器産業株式会社 光ディスク用基板の製造方法

Also Published As

Publication number Publication date
DE69729369D1 (de) 2004-07-08
DE69729369T2 (de) 2005-06-02
EP0858656A1 (de) 1998-08-19
AU720148B2 (en) 2000-05-25
EP0858656B1 (de) 2004-06-02
EP0858656A4 (de) 1998-10-14
WO1998010417A1 (en) 1998-03-12
JPH11514601A (ja) 1999-12-14
AU4315697A (en) 1998-03-26

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Legal Events

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