JPS5669126A - Method of manufacturing record disc - Google Patents
Method of manufacturing record discInfo
- Publication number
- JPS5669126A JPS5669126A JP14560279A JP14560279A JPS5669126A JP S5669126 A JPS5669126 A JP S5669126A JP 14560279 A JP14560279 A JP 14560279A JP 14560279 A JP14560279 A JP 14560279A JP S5669126 A JPS5669126 A JP S5669126A
- Authority
- JP
- Japan
- Prior art keywords
- metallic
- surface member
- mold
- center shaft
- record disc
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To manufacture an illustrated record disc with sound grooves having precise shape and the superior tone quality by a method wherein the press molding is performed by inserting a surface member, a metallic plate and another surface member to the center shaft of the lower metallic mold.
CONSTITUTION: To a center shaft 5 of a lower metallic mold 2 for record disc pressing metallic molds including a stamper 4, a surface member 6 made of thermoplastic resin and previously gelled by heatig, a metallic plate 7 having at the surface thereof letters, figures or he like formed by printing, sculpturing or etching, and another surface member 8 made of the same material as that of the surface member 6 are inserted in turn. An upper metallic mold 1 including a stamper 3 and the lower metallic mold 2 are heated. Then, both metallic molds 1, 2 are closed and further heated while being pressed. After allowing the surface members 6, 8 to radially flow around the center shaft 5 of the lower mold 2 to form sound grooves, the metallic molds are cooled so as to unify the surface members 6, 8 and the matallic plate 7 to each other.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14560279A JPS5669126A (en) | 1979-11-09 | 1979-11-09 | Method of manufacturing record disc |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14560279A JPS5669126A (en) | 1979-11-09 | 1979-11-09 | Method of manufacturing record disc |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5669126A true JPS5669126A (en) | 1981-06-10 |
Family
ID=15388843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14560279A Pending JPS5669126A (en) | 1979-11-09 | 1979-11-09 | Method of manufacturing record disc |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5669126A (en) |
-
1979
- 1979-11-09 JP JP14560279A patent/JPS5669126A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5669126A (en) | Method of manufacturing record disc | |
JPS5715921A (en) | Manufacture of composite product through vacuum molding processing | |
US3247298A (en) | Method for the production of sound records | |
JPS5571541A (en) | Method of continuous duplicated molding of heat curing resin and thermoplastic resin | |
US903189A (en) | Method of making plastic ornaments. | |
JPS5683805A (en) | Production of record disc with picture | |
JPS5689921A (en) | Production of disc and apparatus therefor | |
JPS5596793A (en) | Production of diaphragm for speaker | |
JPS5573916A (en) | Manufacture of magnetic core | |
JPS574722A (en) | Molding method of plastic and metal in one body | |
JPS57115314A (en) | Manufacture for product formed as one body equipped partially with different materials | |
JPS5661004A (en) | Manufacture for record disc | |
JPS56139932A (en) | Manufacture of disc | |
JPS5675830A (en) | Preparation of record disc | |
JPS60201911A (en) | Manufacture of synthetic resin molded plate | |
JPS5662130A (en) | Manufacture of gramophon disk | |
JPS56144131A (en) | Manufacture of heavy-gage molding of synthetic resin | |
JPS57131524A (en) | Manufacture of videodisk | |
CA1108362A (en) | Process for making a record | |
JPS5684927A (en) | Manufacture of composite cellular molding | |
JPS5567977A (en) | Manufacture of tape peep window | |
JPS56145505A (en) | Production of pictured recording disc | |
JPS56123820A (en) | Manufacturing method of escutcheon with clear undulated pattern | |
JPS5797927A (en) | Clutch or brake disc and its manufacturing method | |
JPS56101611A (en) | Manufacture of pictorial record disk |