JPH0475717B2 - - Google Patents
Info
- Publication number
- JPH0475717B2 JPH0475717B2 JP3383284A JP3383284A JPH0475717B2 JP H0475717 B2 JPH0475717 B2 JP H0475717B2 JP 3383284 A JP3383284 A JP 3383284A JP 3383284 A JP3383284 A JP 3383284A JP H0475717 B2 JPH0475717 B2 JP H0475717B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- inorganic scale
- scale material
- elastic modulus
- layer
- 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
- 239000000463 material Substances 0.000 claims description 36
- 239000002759 woven fabric Substances 0.000 claims description 17
- 210000004177 elastic tissue Anatomy 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 description 7
- 230000000704 physical effect Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
- H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3383284A JPS60177795A (ja) | 1984-02-23 | 1984-02-23 | 電気音響変換器用振動板とその製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3383284A JPS60177795A (ja) | 1984-02-23 | 1984-02-23 | 電気音響変換器用振動板とその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60177795A JPS60177795A (ja) | 1985-09-11 |
| JPH0475717B2 true JPH0475717B2 (enrdf_load_stackoverflow) | 1992-12-01 |
Family
ID=12397460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3383284A Granted JPS60177795A (ja) | 1984-02-23 | 1984-02-23 | 電気音響変換器用振動板とその製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60177795A (enrdf_load_stackoverflow) |
-
1984
- 1984-02-23 JP JP3383284A patent/JPS60177795A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60177795A (ja) | 1985-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |