JPS63147619A - 樹脂デイスクの内径抜き方法 - Google Patents

樹脂デイスクの内径抜き方法

Info

Publication number
JPS63147619A
JPS63147619A JP29534786A JP29534786A JPS63147619A JP S63147619 A JPS63147619 A JP S63147619A JP 29534786 A JP29534786 A JP 29534786A JP 29534786 A JP29534786 A JP 29534786A JP S63147619 A JPS63147619 A JP S63147619A
Authority
JP
Japan
Prior art keywords
resin
disk
shape memory
inner diameter
mold
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
JP29534786A
Other languages
English (en)
Japanese (ja)
Other versions
JPH056497B2 (OSRAM
Inventor
Kiyoshi Nagatani
永谷　清志
Koji Onuma
大沼　皓治
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP29534786A priority Critical patent/JPS63147619A/ja
Publication of JPS63147619A publication Critical patent/JPS63147619A/ja
Publication of JPH056497B2 publication Critical patent/JPH056497B2/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
    • B29C45/38—Cutting-off equipment for sprues or ingates

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
JP29534786A 1986-12-10 1986-12-10 樹脂デイスクの内径抜き方法 Granted JPS63147619A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29534786A JPS63147619A (ja) 1986-12-10 1986-12-10 樹脂デイスクの内径抜き方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29534786A JPS63147619A (ja) 1986-12-10 1986-12-10 樹脂デイスクの内径抜き方法

Publications (2)

Publication Number Publication Date
JPS63147619A true JPS63147619A (ja) 1988-06-20
JPH056497B2 JPH056497B2 (OSRAM) 1993-01-26

Family

ID=17819432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29534786A Granted JPS63147619A (ja) 1986-12-10 1986-12-10 樹脂デイスクの内径抜き方法

Country Status (1)

Country Link
JP (1) JPS63147619A (OSRAM)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379322A (ja) * 1989-08-23 1991-04-04 Meiki Co Ltd ディスク成形方法
US5344506A (en) * 1991-10-23 1994-09-06 Martin Marietta Corporation Shape memory metal actuator and cable cutter
WO1999042274A1 (en) * 1998-02-19 1999-08-26 Husky Injection Molding Systems Ltd. Valve gating apparatus and method for injection molding
US6056536A (en) * 1997-03-20 2000-05-02 Husky Injection Molding Systems Ltd. Valve gating apparatus for injection molding
EP1343160A4 (en) * 2000-12-15 2004-07-28 Sony Corp DISC SUBSTRATE, CASTING DEVICE FOR ITS INJECTION MOLDING AND DISC SUBSTRATE RECEIVER
JP2005306011A (ja) * 2004-03-25 2005-11-04 Ricoh Co Ltd 記録ディスク成形方法および記録ディスク成形装置ならびに記録ディスク成形型

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379322A (ja) * 1989-08-23 1991-04-04 Meiki Co Ltd ディスク成形方法
US5344506A (en) * 1991-10-23 1994-09-06 Martin Marietta Corporation Shape memory metal actuator and cable cutter
US6056536A (en) * 1997-03-20 2000-05-02 Husky Injection Molding Systems Ltd. Valve gating apparatus for injection molding
WO1999042274A1 (en) * 1998-02-19 1999-08-26 Husky Injection Molding Systems Ltd. Valve gating apparatus and method for injection molding
EP1343160A4 (en) * 2000-12-15 2004-07-28 Sony Corp DISC SUBSTRATE, CASTING DEVICE FOR ITS INJECTION MOLDING AND DISC SUBSTRATE RECEIVER
US7229275B2 (en) 2000-12-15 2007-06-12 Sony Corporation Disk substrate, mold apparatus for injection molding the same, and disk substrate taking-out robot
JP2005306011A (ja) * 2004-03-25 2005-11-04 Ricoh Co Ltd 記録ディスク成形方法および記録ディスク成形装置ならびに記録ディスク成形型

Also Published As

Publication number Publication date
JPH056497B2 (OSRAM) 1993-01-26

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