TW200735095A - Molding method of disk substrate and blue-ray disc - Google Patents

Molding method of disk substrate and blue-ray disc

Info

Publication number
TW200735095A
TW200735095A TW095144524A TW95144524A TW200735095A TW 200735095 A TW200735095 A TW 200735095A TW 095144524 A TW095144524 A TW 095144524A TW 95144524 A TW95144524 A TW 95144524A TW 200735095 A TW200735095 A TW 200735095A
Authority
TW
Taiwan
Prior art keywords
disc substrate
cutter
blue
external cutter
molding method
Prior art date
Application number
TW095144524A
Other languages
Chinese (zh)
Other versions
TWI326082B (en
Inventor
Toshiyuki Ebina
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
Publication of TW200735095A publication Critical patent/TW200735095A/en
Application granted granted Critical
Publication of TWI326082B publication Critical patent/TWI326082B/zh

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

The present invention provides a blue-ray disc substrate or a disc substrate molded in a similar way for overcoming the problems of defectives caused by the burrs formed on a loading part during opening a center hole of a disc substrate or the problems of subsequent processes for dealing with the burrs. With respect to technical means, in a disc substrate molding method for molding a disc substrate (D1) in a cavity (14) formed among a female die (16) for forming a message area (D3), a movable mold tool (12) employed for an external cutter (21) to open a center hole (D2) on the disc substrate (D1), and a fixed mold tool (13) for an internal cutter (27) to be embedded with the external cutter (21) when the external cutter (21) moves forward, the external cutter (21) moves forward towards and embeds with an inner circumferential hole (27c) of the internal cutter (27) after a molten resin is ejected into and filled the cavity (14) so as to mold the disc substrate (D1), which has a loading part (D4) but no burr protruding from a horizontal surface (D10) on the inner circumferential side, on the same message area (D3) surface having a magnetic track interval of 0.010~0.040 μm.
TW095144524A 2006-03-06 2006-11-30 Molding method of disk substrate and blue-ray disc TW200735095A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006058819A JP2007237407A (en) 2006-03-06 2006-03-06 Disk substrate molding method and blue lay disk

Publications (2)

Publication Number Publication Date
TW200735095A true TW200735095A (en) 2007-09-16
TWI326082B TWI326082B (en) 2010-06-11

Family

ID=38583418

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095144524A TW200735095A (en) 2006-03-06 2006-11-30 Molding method of disk substrate and blue-ray disc

Country Status (3)

Country Link
JP (1) JP2007237407A (en)
CN (2) CN101637961A (en)
TW (1) TW200735095A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009006615A (en) * 2007-06-28 2009-01-15 Taiyo Yuden Co Ltd Optical disk and mold assembly
CN101777361B (en) * 2009-12-30 2011-08-31 东莞宏威数码机械有限公司 Blue-ray disc die assembly
CN109648806B (en) * 2018-11-16 2024-01-02 温州海航机械有限公司 Multi-station material shearing device
CN113681797A (en) * 2021-08-23 2021-11-23 合肥通泰光电科技有限公司 Injection molding flash processing equipment for display screen rubber frame

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04518U (en) * 1990-04-16 1992-01-06
JP4156982B2 (en) * 2003-06-13 2008-09-24 富士フイルム株式会社 Manufacturing method of optical disk substrate and optical disk substrate
JP4024775B2 (en) * 2004-04-13 2007-12-19 株式会社名機製作所 Drilling method for the central opening of a disk substrate
JP4331060B2 (en) * 2004-06-23 2009-09-16 株式会社リコー Organic thin film and manufacturing method thereof, optical recording medium using the thin film, and recording / reproducing method

Also Published As

Publication number Publication date
CN101032856A (en) 2007-09-12
CN101637961A (en) 2010-02-03
JP2007237407A (en) 2007-09-20
TWI326082B (en) 2010-06-11
CN100519139C (en) 2009-07-29

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees