JPS57144738A - Manufacture of plastics base plate for optical disk - Google Patents
Manufacture of plastics base plate for optical diskInfo
- Publication number
- JPS57144738A JPS57144738A JP2834481A JP2834481A JPS57144738A JP S57144738 A JPS57144738 A JP S57144738A JP 2834481 A JP2834481 A JP 2834481A JP 2834481 A JP2834481 A JP 2834481A JP S57144738 A JPS57144738 A JP S57144738A
- Authority
- JP
- Japan
- Prior art keywords
- base plate
- static charge
- optical disk
- manufacture
- plastics base
- 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.)
- Pending
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
- B29C45/1701—Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2834481A JPS57144738A (en) | 1981-03-02 | 1981-03-02 | Manufacture of plastics base plate for optical disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2834481A JPS57144738A (en) | 1981-03-02 | 1981-03-02 | Manufacture of plastics base plate for optical disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57144738A true JPS57144738A (en) | 1982-09-07 |
Family
ID=12245977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2834481A Pending JPS57144738A (en) | 1981-03-02 | 1981-03-02 | Manufacture of plastics base plate for optical disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57144738A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61244519A (ja) * | 1985-04-22 | 1986-10-30 | Matsushita Electric Ind Co Ltd | 光デイスク用プラスチツク基材の製造方法 |
-
1981
- 1981-03-02 JP JP2834481A patent/JPS57144738A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61244519A (ja) * | 1985-04-22 | 1986-10-30 | Matsushita Electric Ind Co Ltd | 光デイスク用プラスチツク基材の製造方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW339306B (en) | Method and apparatus for treating an ophthalmic lens mold | |
JPS53102962A (en) | Process apparatus and mold for plastics injection molding | |
HU175694B (hu) | Sposob izgotovlenija plastmassovykh fitingov i shpriceval' nyj press dlja osuhhestvlenija sposoba | |
ZA951825B (en) | Process and apparatus for the production of optical lenses | |
EP0186413A3 (en) | Equipment for injection moulding of plastics | |
EP0181590A3 (en) | Method and apparatus for punching and removing the sprue in an injection mould | |
MX151455A (es) | Procedimiento y aparato mejorados para la fundicion en molde o para el moldeo por inyeccion de llantas para vehiculos | |
BR9105910A (pt) | Maquina de processamento de plastico e processo para reajuste rapido | |
ES8504015A1 (es) | Procedimiento de realizacion de piezas de material plastico y dispositivo correspondiente | |
EP0642911A4 (en) | METHOD AND DEVICE FOR PRODUCING THERMOPLASTIC PLASTIC SCREWS. | |
IT1128834B (it) | Procedimento per la fabbricazione di pneumatici mediante formatura in stampo e pneumatico ottenuto con il procedimento | |
EP0403743A3 (en) | Method for molding powders | |
PT88588A (pt) | Injection moulding process and mould used in this process | |
JPS57144738A (en) | Manufacture of plastics base plate for optical disk | |
GB1085772A (en) | Method of and apparatus for injection moulding of hardenable plastics material | |
DE59809138D1 (de) | Vorrichtung zur Herstellung von Formkörpern aus einer polymerisierbaren Mischung | |
ATE51547T1 (de) | Formeinrichtung zur herstellung von formteilen. | |
JPS5794706A (en) | Plate-like lens | |
RU95101847A (ru) | Способ вибрационного прессования и устройство для его осуществления | |
JPS51119765A (en) | Resin mould for reinforced plastic moulding | |
JPS5635597A (en) | Manufacture of speaker diaphragm | |
JPS5380462A (en) | Process for vacuum molding of plastic molded form | |
BE879874A (fr) | Perfectionnements apportes aux moules et notamment aux moules pour le moulage de matieres plastiques expansees | |
JPS5278963A (en) | Mold for injection molding plastics | |
GB2013555A (en) | Injector Mould Feed Passage With Dwell Chamber |