JPH056497B2 - - Google Patents

Info

Publication number
JPH056497B2
JPH056497B2 JP29534786A JP29534786A JPH056497B2 JP H056497 B2 JPH056497 B2 JP H056497B2 JP 29534786 A JP29534786 A JP 29534786A JP 29534786 A JP29534786 A JP 29534786A JP H056497 B2 JPH056497 B2 JP H056497B2
Authority
JP
Japan
Prior art keywords
inner diameter
resin
disk
shape memory
resin disk
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
JP29534786A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63147619A (ja
Inventor
Kyoshi Nagatani
Koji Oonuma
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
Nippon Electric Co Ltd
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
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 JPS63147619A (ja) 1988-06-20
JPH056497B2 true 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)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0628882B2 (ja) * 1989-08-23 1994-04-20 株式会社名機製作所 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
CN1124925C (zh) * 1998-02-19 2003-10-22 哈斯基注模系统有限公司 用于注塑的阀式浇口装置和方法
JP2002240101A (ja) 2000-12-15 2002-08-28 Sony Corp ディスク基板及びそれを射出成形する金型装置とディスク基板取出し用ロボット
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
JPS63147619A (ja) 1988-06-20

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