JPS56101831A - Manufacture of recording disc and mold used for said method - Google Patents
Manufacture of recording disc and mold used for said methodInfo
- Publication number
- JPS56101831A JPS56101831A JP18951080A JP18951080A JPS56101831A JP S56101831 A JPS56101831 A JP S56101831A JP 18951080 A JP18951080 A JP 18951080A JP 18951080 A JP18951080 A JP 18951080A JP S56101831 A JPS56101831 A JP S56101831A
- Authority
- JP
- Japan
- Prior art keywords
- manufacture
- mold used
- recording disc
- disc
- recording
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/10—Extrusion moulding
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/81—Sound record
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/108,029 US4318877A (en) | 1979-12-28 | 1979-12-28 | Video disc molding process |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56101831A true JPS56101831A (en) | 1981-08-14 |
JPS6261419B2 JPS6261419B2 (ja) | 1987-12-21 |
Family
ID=22319861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18951080A Granted JPS56101831A (en) | 1979-12-28 | 1980-12-25 | Manufacture of recording disc and mold used for said method |
Country Status (7)
Country | Link |
---|---|
US (1) | US4318877A (ja) |
JP (1) | JPS56101831A (ja) |
AT (1) | AT369905B (ja) |
DE (1) | DE3048003A1 (ja) |
FR (1) | FR2477466A1 (ja) |
GB (1) | GB2066726B (ja) |
IT (1) | IT1134663B (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1196847B (it) * | 1986-12-16 | 1988-11-25 | Fiat Auto Spa | Procedimento per la produzione mediante stampaggio di articoli a base di resina poliestere insatura |
JPH01188219A (ja) * | 1988-01-21 | 1989-07-27 | Mitsubishi Heavy Ind Ltd | ブローチ工具 |
US6276656B1 (en) * | 1992-07-14 | 2001-08-21 | Thermal Wave Molding Corp. | Mold for optimizing cooling time to form molded article |
US6828372B2 (en) * | 2001-03-05 | 2004-12-07 | Tie Tek, Inc. | Railroad tie and method for making same |
CA2952059A1 (en) * | 2016-12-16 | 2018-06-16 | Viryl Technologies Corp. | Record making system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB604079A (en) * | 1944-11-25 | 1948-06-28 | Bakelite Ltd | Improvements in or relating to the manufacture of preforms of synthetic resinous materials |
US2448277A (en) * | 1945-02-01 | 1948-08-31 | William S Renier | Apparatus for forming and preheating slugs of moldable material |
US2743478A (en) * | 1951-10-31 | 1956-05-01 | Rca Corp | Automatic molding apparatus |
GB1155629A (en) * | 1966-10-14 | 1969-06-18 | Metrik Engineering Croydon Ltd | A method of and Apparatus for manufacturing Gramophone Records |
US3526690A (en) * | 1969-02-17 | 1970-09-01 | Columbia Broadcasting Syst Inc | Method and apparatus for producing phonograph records |
US4213927A (en) * | 1979-06-29 | 1980-07-22 | Alberti John D | Method of making picture phonograph record |
-
1979
- 1979-12-28 US US06/108,029 patent/US4318877A/en not_active Expired - Lifetime
-
1980
- 1980-12-10 IT IT26554/80A patent/IT1134663B/it active
- 1980-12-19 DE DE19803048003 patent/DE3048003A1/de not_active Withdrawn
- 1980-12-22 AT AT0626280A patent/AT369905B/de not_active IP Right Cessation
- 1980-12-22 GB GB8041030A patent/GB2066726B/en not_active Expired
- 1980-12-24 FR FR8027537A patent/FR2477466A1/fr active Granted
- 1980-12-25 JP JP18951080A patent/JPS56101831A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2066726A (en) | 1981-07-15 |
AT369905B (de) | 1983-02-10 |
ATA626280A (de) | 1982-06-15 |
FR2477466A1 (fr) | 1981-09-11 |
DE3048003A1 (de) | 1981-09-10 |
JPS6261419B2 (ja) | 1987-12-21 |
IT8026554A0 (it) | 1980-12-10 |
GB2066726B (en) | 1983-08-17 |
IT1134663B (it) | 1986-08-13 |
FR2477466B1 (ja) | 1985-04-12 |
US4318877A (en) | 1982-03-09 |
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