JPH0468127B2 - - Google Patents

Info

Publication number
JPH0468127B2
JPH0468127B2 JP58051797A JP5179783A JPH0468127B2 JP H0468127 B2 JPH0468127 B2 JP H0468127B2 JP 58051797 A JP58051797 A JP 58051797A JP 5179783 A JP5179783 A JP 5179783A JP H0468127 B2 JPH0468127 B2 JP H0468127B2
Authority
JP
Japan
Prior art keywords
stamper
disc
mold
air
video
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.)
Expired - Lifetime
Application number
JP58051797A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59176029A (ja
Inventor
Takashi Segawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP5179783A priority Critical patent/JPS59176029A/ja
Publication of JPS59176029A publication Critical patent/JPS59176029A/ja
Publication of JPH0468127B2 publication Critical patent/JPH0468127B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/43—Removing or ejecting moulded articles using fluid under pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
JP5179783A 1983-03-28 1983-03-28 円盤状記録媒体の離型方法 Granted JPS59176029A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5179783A JPS59176029A (ja) 1983-03-28 1983-03-28 円盤状記録媒体の離型方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5179783A JPS59176029A (ja) 1983-03-28 1983-03-28 円盤状記録媒体の離型方法

Publications (2)

Publication Number Publication Date
JPS59176029A JPS59176029A (ja) 1984-10-05
JPH0468127B2 true JPH0468127B2 (en]) 1992-10-30

Family

ID=12896919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5179783A Granted JPS59176029A (ja) 1983-03-28 1983-03-28 円盤状記録媒体の離型方法

Country Status (1)

Country Link
JP (1) JPS59176029A (en])

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62198422A (ja) * 1986-02-26 1987-09-02 Meiki Co Ltd デイスクの射出成形装置
JPS62234910A (ja) * 1986-04-07 1987-10-15 Meiki Co Ltd デイスクの射出成形装置
JP2630606B2 (ja) * 1987-12-17 1997-07-16 ティーディーケイ株式会社 光ディスク等用成型装置
JPH01160626A (ja) * 1987-12-18 1989-06-23 Tdk Corp 光ディスク等用成型装置
JP2824486B2 (ja) * 1987-12-24 1998-11-11 ティーディーケイ 株式会社 光ディスク等用成型装置
JPH0763991B2 (ja) * 1988-04-16 1995-07-12 ダイセル化学工業株式会社 フォーマット入り光ディスク基板成形用金型
JPH07316B2 (ja) * 1988-04-16 1995-01-11 ダイセル化学工業株式会社 フォーマット入り光ディスク基板の成形方法
JPH0751300B2 (ja) * 1988-04-16 1995-06-05 ダイセル化学工業株式会社 プリフォーマット入り光ディスク基板の成形方法およびそれに用いる金型
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
JPH0716973B2 (ja) * 1988-09-01 1995-03-01 株式会社名機製作所 ディスク成形方法及びそのための成形型
JPH0767719B2 (ja) * 1989-02-16 1995-07-26 富士写真フイルム株式会社 合成樹脂成形品の離型方法
NL1026860C2 (nl) * 2004-08-18 2006-02-21 F T Engineering B V Werkwijze en inrichting voor het uit een matrijs verwijderen van een schijfvormige informatiedrager.
FR2930474A1 (fr) * 2008-04-24 2009-10-30 Rz Engineering Soc Par Actions Dispositif de fabrication de pieces en matiere plastique et procede de demoulage desdites pieces, utilisant un jet d'air

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606768B2 (ja) * 1977-03-31 1985-02-20 積水化学工業株式会社 深底成形品の射出成形用金型
JPS5450062U (en]) * 1977-09-14 1979-04-06
JPS5917626Y2 (ja) * 1978-06-22 1984-05-22 立花容器株式会社 カツプ型射出成形蓋用離型装置

Also Published As

Publication number Publication date
JPS59176029A (ja) 1984-10-05

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