KR930016230A - 디스크기판의 제조방법 - Google Patents

디스크기판의 제조방법 Download PDF

Info

Publication number
KR930016230A
KR930016230A KR1019920025178A KR920025178A KR930016230A KR 930016230 A KR930016230 A KR 930016230A KR 1019920025178 A KR1019920025178 A KR 1019920025178A KR 920025178 A KR920025178 A KR 920025178A KR 930016230 A KR930016230 A KR 930016230A
Authority
KR
South Korea
Prior art keywords
substrate
synthetic resin
mold
center hole
manufacturing
Prior art date
Application number
KR1019920025178A
Other languages
English (en)
Inventor
쥰이찌로 구도
쥰 시미즈
요시히꼬 고다마
Original Assignee
오가 노리오
소니 가부시기가이샤
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 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR930016230A publication Critical patent/KR930016230A/ko

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/002—Precutting and tensioning or breaking
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
    • B29D17/005—Producing optically read record carriers, e.g. optical discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
    • B26F2210/06—Trimming plastic mouldings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

금형에 요구되는 정밀도를 완화하여 제조코스트를 저감할 수 있고, 더욱이 고정밀도의 디스크기관을 제조하는 것이 가능한 제조방법을 제공한다.
본원 발명에 있어서는, 디스크기판은 사출성형에 의해 합성수지를 성형함으로써 제조한다. 사출성형에 있어서는, 먼저 합성수지를 금형의 성형캐비티내에 사출한 후, 가동부재를 기판의 두께방향 중동부까지 삽입하여 센터홀의 주요부분을 형성한다. 다음에, 성형된 디스크기판을 금형에서 꺼내서, 센터홀을 막는 형태로 디스크기판에 연결되어 잔존하는 합성수지편을 프레스등의 수법에 의해 제거된다.

Description

디스크기판의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제4도는 센터홀을 막는 합성수지편의 제거공정을 도시한 요부개략단면도, 제5도는 제작된 디스크기판을 사용한 광자기디스크를 일부파단하여 도시한 개략사시도, 제6도는 광자기디스크의 디스크테이블에의 장착상태를 도시한 단면도.

Claims (1)

  1. 합성수지를 성형하여 형성되는 동시에 두께방향으로 관통하는 센터홀을 가진 디스크기판의 제조방법에 있어서, 합성수지를 금형의 성형캐비티내에 사출한 후, 가동부재를 기판의 두께방향 중도부까지 삽입하여 센터홀을 형성하고, 성형된 디스크기판을 금형에서 꺼내서, 센터홀에 잔존하는 합성수지편을 제거하는 것을 특징으로 하는 디스크기판의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920025178A 1992-01-14 1992-12-23 디스크기판의 제조방법 KR930016230A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP92-23,322 1992-01-14
JP02332292A JP3401795B2 (ja) 1992-01-14 1992-01-14 ディスク基板の製造方法

Publications (1)

Publication Number Publication Date
KR930016230A true KR930016230A (ko) 1993-08-26

Family

ID=12107357

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920025178A KR930016230A (ko) 1992-01-14 1992-12-23 디스크기판의 제조방법

Country Status (3)

Country Link
EP (1) EP0551869A1 (ko)
JP (1) JP3401795B2 (ko)
KR (1) KR930016230A (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19842899C2 (de) * 1998-09-18 2002-04-25 Roehm Gmbh Formwerkzeug für Informationsträgerscheiben-Rohlinge
US6401510B1 (en) 1999-04-07 2002-06-11 3M Innovative Properties Company Method for stamping a part from a multi-layered strip
JP2002540949A (ja) * 1999-04-07 2002-12-03 スリーエム イノベイティブ プロパティズ カンパニー 多層構造ストリップから部品を打出すための方法および装置
NL1012256C2 (nl) * 1999-06-08 2000-12-15 Axxicon Moulds Eindhoven Bv Doseeropening voor een spuitgietmatrijs.
JP4215923B2 (ja) * 2000-02-02 2009-01-28 株式会社ソニー・ディスクアンドデジタルソリューションズ 光ディスク及びその射出圧縮成形用金型
JP3881524B2 (ja) * 2001-05-21 2007-02-14 株式会社精工技研 ディスク成形用金型、貼り合わせた基板及びその製造方法
KR101384323B1 (ko) * 2010-10-07 2014-04-10 주식회사 엘지화학 사출압축성형용 금형장치 및 이를 이용한 사출압축성형 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459350A (en) * 1967-10-11 1969-08-05 Corduroy Rubber Co Method and apparatus for punching
US3937779A (en) * 1972-05-03 1976-02-10 Emi Limited Moulding of gramophone records
US4372741A (en) * 1980-10-31 1983-02-08 Discovision Associates Hot sprue valve assembly for an injection molding machine
US4892242A (en) * 1988-01-13 1990-01-09 Sekisui Kaseihin Kogyo Kabushiki Kaisha Method and device for separating trimming losses of products formed from sheet
DE9110857U1 (de) * 1991-09-02 1991-10-10 Roehm Gmbh, 6100 Darmstadt Vorrichtung zum scharfkantigen Quertrennen einer extrudierten Hohlkammerbahn aus spröd-hartem thermoplastischem Kunststoff

Also Published As

Publication number Publication date
EP0551869A1 (en) 1993-07-21
JPH05185477A (ja) 1993-07-27
JP3401795B2 (ja) 2003-04-28

Similar Documents

Publication Publication Date Title
WO1979000235A1 (en) Metal die for injection moulding
CA2328626A1 (en) Method for overmolding sink marks for an automotive component
MXPA02010360A (es) Metodo para moldear un panel.
KR900009253A (ko) 슬라이드 파스너용 슬라이더의 제조방법
KR930016230A (ko) 디스크기판의 제조방법
KR880007200A (ko) 수지성형용 금형유니트
KR920002298A (ko) 열가소성수지 성형물품의 제조방법
JPS56159134A (en) Mold for injection molding
KR880012332A (ko) 2색성형 금형장치
EP0271984A3 (en) Two-part gasket
KR890004270A (ko) 자기헤드의 제조방법
MY130758A (en) Method of molding a molding resin on a substrate having openings, switch substrate with a molding resin, method of forming a switch pattern on a switch subnstrate, and a switch substrate
ES542399A0 (es) Metodo y su correspondiente molde para moldear por inyeccion un articulo.
JPS63141712A (ja) プラスチツクの射出成形方法
KR880004930A (ko) 스위치 케이스의 제조방법
KR0130466Y1 (ko) 전지케이스
JPS63147616A (ja) プラスチツクの射出成形方法
JPS5856508B2 (ja) インサ−トシヤシユツセイケイホウ
JPS55103923A (en) Molding method of synthetic resin
KR940703963A (ko) 열가소성 수지로 제조된 콘크리트 형틀(a concrete form made of a thermoplastic resin)
KR950000346A (ko) 수지칼라 판정구조
JPH0133311Y2 (ko)
JPS6348687B2 (ko)
JPS58149409A (ja) モ−ルデイングに対するフアスナの取付方法
JPS60264218A (ja) アンダ−カツト抜き方法

Legal Events

Date Code Title Description
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid