JPS54159219A - Production of diaphragm for acoustic apparatus - Google Patents
Production of diaphragm for acoustic apparatusInfo
- Publication number
- JPS54159219A JPS54159219A JP6868378A JP6868378A JPS54159219A JP S54159219 A JPS54159219 A JP S54159219A JP 6868378 A JP6868378 A JP 6868378A JP 6868378 A JP6868378 A JP 6868378A JP S54159219 A JPS54159219 A JP S54159219A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- refractories
- furnace
- diaphragm
- substrate
- 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
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
PURPOSE:To enable the diaphragm having a required thickness to be inexpensively produced in a short time by rapidly spreading the diaphragm raw material having been heated and melted on the specific substrate then cooling and solidifying the same. CONSTITUTION:Raw material such as B is inserted in pipe-form refractories 4 and is placed on a support base 13 together with a heating furnace 3. A flange part 8 is strongly pushed to the furnace 3 to fix the furnace 3 and secure airtightness so that high pressure gas 10 is supplied only into the refractories 4. A hermetic vessel 12 is put on a base 14 and the inside of the vessel 12 is evacuated. After the raw material 1 is heated and melted by the W heater 5 of the furnace 3 provided with heat-insulating refractories 6, a valve 9 is rapidly opened to allow the gas 10 to be blown into the refractories 4 through the pipe 7. The molten raw material 1 is injected from the portion 4a of a smaller sectional area onto the substrate 2 which is being rotated at a high speed about the center of the substrate 2 as its rotating center by a rotating mechanism 11. The material is then spread thinly, cooled and solidified, whereby the thin plate to become the diaphfragm is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6868378A JPS54159219A (en) | 1978-06-07 | 1978-06-07 | Production of diaphragm for acoustic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6868378A JPS54159219A (en) | 1978-06-07 | 1978-06-07 | Production of diaphragm for acoustic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54159219A true JPS54159219A (en) | 1979-12-15 |
Family
ID=13380768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6868378A Pending JPS54159219A (en) | 1978-06-07 | 1978-06-07 | Production of diaphragm for acoustic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54159219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115098A (en) * | 1980-02-16 | 1981-09-10 | Onkyo Corp | Production of speaker diaphragm |
-
1978
- 1978-06-07 JP JP6868378A patent/JPS54159219A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115098A (en) * | 1980-02-16 | 1981-09-10 | Onkyo Corp | Production of speaker diaphragm |
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