JPS5742297A - Manufacture of diaphragm for acoustic device - Google Patents
Manufacture of diaphragm for acoustic deviceInfo
- Publication number
- JPS5742297A JPS5742297A JP11770580A JP11770580A JPS5742297A JP S5742297 A JPS5742297 A JP S5742297A JP 11770580 A JP11770580 A JP 11770580A JP 11770580 A JP11770580 A JP 11770580A JP S5742297 A JPS5742297 A JP S5742297A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- film
- processing
- active processing
- manufacture
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
PURPOSE:To make easy the manufacture of a diaphragm for mass-production, by applying active processing to sheet shape polypropylene film in advance and obtaining a diaphragm through heating and forming the film coated with polyisocyanate heated and formed into the diaphragm shape. CONSTITUTION:An active processing film 2 is formed by making corona discharge processing, chemical processing and active processing such as frame processing on the surface of sheet shape polypropylene film 1. A polyisocyanate 3 is coated on the surface of the film 1 in active processing. The processed film 1 is heated and formed into diaphragm for acoustic device to obtain a desired diaphragm. The heating and forming of the film 1 after active processing can be made easy to mass-produce diaphragm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11770580A JPS5742297A (en) | 1980-08-28 | 1980-08-28 | Manufacture of diaphragm for acoustic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11770580A JPS5742297A (en) | 1980-08-28 | 1980-08-28 | Manufacture of diaphragm for acoustic device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5742297A true JPS5742297A (en) | 1982-03-09 |
Family
ID=14718264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11770580A Pending JPS5742297A (en) | 1980-08-28 | 1980-08-28 | Manufacture of diaphragm for acoustic device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5742297A (en) |
-
1980
- 1980-08-28 JP JP11770580A patent/JPS5742297A/en active Pending
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