JPS6346481B2 - - Google Patents
Info
- Publication number
- JPS6346481B2 JPS6346481B2 JP4788380A JP4788380A JPS6346481B2 JP S6346481 B2 JPS6346481 B2 JP S6346481B2 JP 4788380 A JP4788380 A JP 4788380A JP 4788380 A JP4788380 A JP 4788380A JP S6346481 B2 JPS6346481 B2 JP S6346481B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- resin
- injection
- resin liquid
- injection shaft
- 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.)
- Expired
Links
- 229920005989 resin Polymers 0.000 claims description 70
- 239000011347 resin Substances 0.000 claims description 70
- 238000002347 injection Methods 0.000 claims description 66
- 239000007924 injection Substances 0.000 claims description 66
- 239000000463 material Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 27
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000005855 radiation Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 239000002861 polymer material Substances 0.000 claims description 4
- 239000012876 carrier material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 12
- 238000000465 moulding Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 238000003847 radiation curing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Magnetic Record Carriers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Manufacturing Optical Record Carriers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4788380A JPS56143504A (en) | 1980-04-10 | 1980-04-10 | Method and device for reproducing information recording carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4788380A JPS56143504A (en) | 1980-04-10 | 1980-04-10 | Method and device for reproducing information recording carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56143504A JPS56143504A (en) | 1981-11-09 |
| JPS6346481B2 true JPS6346481B2 (enrdf_load_stackoverflow) | 1988-09-16 |
Family
ID=12787781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4788380A Granted JPS56143504A (en) | 1980-04-10 | 1980-04-10 | Method and device for reproducing information recording carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56143504A (enrdf_load_stackoverflow) |
-
1980
- 1980-04-10 JP JP4788380A patent/JPS56143504A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56143504A (en) | 1981-11-09 |