JPS63237921A - デイスク用射出成形金型 - Google Patents

デイスク用射出成形金型

Info

Publication number
JPS63237921A
JPS63237921A JP7227987A JP7227987A JPS63237921A JP S63237921 A JPS63237921 A JP S63237921A JP 7227987 A JP7227987 A JP 7227987A JP 7227987 A JP7227987 A JP 7227987A JP S63237921 A JPS63237921 A JP S63237921A
Authority
JP
Japan
Prior art keywords
cavity
punch
sleeve
mold
tip
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.)
Granted
Application number
JP7227987A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0367853B2 (enrdf_load_html_response
Inventor
Ikuo Asai
郁夫 浅井
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.)
Meiki Seisakusho KK
Original Assignee
Meiki Seisakusho KK
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 Meiki Seisakusho KK filed Critical Meiki Seisakusho KK
Priority to JP7227987A priority Critical patent/JPS63237921A/ja
Publication of JPS63237921A publication Critical patent/JPS63237921A/ja
Publication of JPH0367853B2 publication Critical patent/JPH0367853B2/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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
JP7227987A 1987-03-26 1987-03-26 デイスク用射出成形金型 Granted JPS63237921A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7227987A JPS63237921A (ja) 1987-03-26 1987-03-26 デイスク用射出成形金型

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7227987A JPS63237921A (ja) 1987-03-26 1987-03-26 デイスク用射出成形金型

Publications (2)

Publication Number Publication Date
JPS63237921A true JPS63237921A (ja) 1988-10-04
JPH0367853B2 JPH0367853B2 (enrdf_load_html_response) 1991-10-24

Family

ID=13484687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7227987A Granted JPS63237921A (ja) 1987-03-26 1987-03-26 デイスク用射出成形金型

Country Status (1)

Country Link
JP (1) JPS63237921A (enrdf_load_html_response)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156021U (enrdf_load_html_response) * 1988-04-08 1989-10-26
US5340303A (en) * 1993-07-20 1994-08-23 Galic Maus Ventures Faster cycling sprue for centerhole - tearout optical disk injection molds
US5545365A (en) * 1993-11-15 1996-08-13 Meiki Co., Ltd. Method for molding a disc with a central aperture
US5738886A (en) * 1995-08-07 1998-04-14 Kabushiki Kaisha Meiki Seisakusho Mold for disk substrate
EP2095928A4 (en) * 2006-11-29 2011-03-02 Sumitomo Heavy Industries DISC THICKNESS, DISC SUBSTRATE AND METHOD OF FORMING THE DISC SUBSTRATE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01156021U (enrdf_load_html_response) * 1988-04-08 1989-10-26
US5340303A (en) * 1993-07-20 1994-08-23 Galic Maus Ventures Faster cycling sprue for centerhole - tearout optical disk injection molds
US5545365A (en) * 1993-11-15 1996-08-13 Meiki Co., Ltd. Method for molding a disc with a central aperture
US5738886A (en) * 1995-08-07 1998-04-14 Kabushiki Kaisha Meiki Seisakusho Mold for disk substrate
EP2095928A4 (en) * 2006-11-29 2011-03-02 Sumitomo Heavy Industries DISC THICKNESS, DISC SUBSTRATE AND METHOD OF FORMING THE DISC SUBSTRATE

Also Published As

Publication number Publication date
JPH0367853B2 (enrdf_load_html_response) 1991-10-24

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