BE666359A - - Google Patents

Info

Publication number
BE666359A
BE666359A BE666359DA BE666359A BE 666359 A BE666359 A BE 666359A BE 666359D A BE666359D A BE 666359DA BE 666359 A BE666359 A BE 666359A
Authority
BE
Belgium
Prior art keywords
disc
pressing
press
tool
discs
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE666359A publication Critical patent/BE666359A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00Carriers for sound or information
    • B29L2017/001Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003Records or discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
BE666359D BE666359A (de)

Publications (1)

Publication Number Publication Date
BE666359A true BE666359A (de)

Family

ID=207833

Family Applications (1)

Application Number Title Priority Date Filing Date
BE666359D BE666359A (de)

Country Status (1)

Country Link
BE (1) BE666359A (de)

Similar Documents

Publication Publication Date Title
FR2548578A1 (fr) Procede de fabrication de disques optiques par pressage et disque obtenu par un tel procede
US3687769A (en) Laminated picture-type phonograph record,and method of making the same
BE666359A (de)
JP2009229995A (ja) 光学素子用成形金型及び光学素子
BE570192A (de)
US1558175A (en) Manufacture of gramophone disk records
JPH08124223A (ja) 光ディスクの製造方法
BE520546A (de)
JP2526118B2 (ja) 光記録媒体用基板の製造方法及びその方法に使用する成型ロ―ラ
JP2955224B2 (ja) 光ディスク用基板の製造方法
US862407A (en) Talking-machine record.
JP2006286164A (ja) 光ディスク基板とその成形用金型
JP4360581B2 (ja) 磁気ディスク用ラミネート板製ブランク材の製造方法
BE405793A (de)
FR2562369A1 (fr) Procede de fabrication d'un diaphragme de transducteur en materiau polymere comprenant des parties de rigidites differentes et diaphragme obtenu par ce procede
JPH071515A (ja) 光学的情報記録媒体成形用金型および成形法ならびに光学的情報記録媒体
US1152445A (en) Method of making sound-records.
JPH0825434A (ja) ディスク用基板の成形方法
JP2745765B2 (ja) 光学式記録媒体の製造方法
JP2003263792A (ja) フレキシブル光ディスクの製造方法及びフレキシブル光ディスク
BE478698A (de)
BE362190A (de)
JP3451842B2 (ja) 光ディスク
JPH08124222A (ja) 光ディスクの製造方法
JPS62189123A (ja) 薄型デイスクの製造方法