JPS639798B2 - - Google Patents
Info
- Publication number
- JPS639798B2 JPS639798B2 JP12118081A JP12118081A JPS639798B2 JP S639798 B2 JPS639798 B2 JP S639798B2 JP 12118081 A JP12118081 A JP 12118081A JP 12118081 A JP12118081 A JP 12118081A JP S639798 B2 JPS639798 B2 JP S639798B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- polyvinyl chloride
- graphite
- modulus
- young
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 229910002804 graphite Inorganic materials 0.000 claims description 18
- 239000010439 graphite Substances 0.000 claims description 18
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims description 9
- 239000004801 Chlorinated PVC Substances 0.000 claims description 6
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 6
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 8
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007666 vacuum forming Methods 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12118081A JPS5821997A (ja) | 1981-07-31 | 1981-07-31 | スピ−カ用振動板 |
| GB08221939A GB2115645B (en) | 1981-07-31 | 1982-07-29 | Speaker diaphragm |
| FR8213387A FR2510857A1 (fr) | 1981-07-31 | 1982-07-30 | Membrane de haut-parleur |
| DE19823228592 DE3228592C2 (de) | 1981-07-31 | 1982-07-30 | Lautsprechermembran |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12118081A JPS5821997A (ja) | 1981-07-31 | 1981-07-31 | スピ−カ用振動板 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5821997A JPS5821997A (ja) | 1983-02-09 |
| JPS639798B2 true JPS639798B2 (enrdf_load_html_response) | 1988-03-02 |
Family
ID=14804824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12118081A Granted JPS5821997A (ja) | 1981-07-31 | 1981-07-31 | スピ−カ用振動板 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5821997A (enrdf_load_html_response) |
| DE (1) | DE3228592C2 (enrdf_load_html_response) |
| FR (1) | FR2510857A1 (enrdf_load_html_response) |
| GB (1) | GB2115645B (enrdf_load_html_response) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8301653A (nl) * | 1983-05-10 | 1984-12-03 | Philips Nv | Elektro-akoestische omzetter met een luchtdoorlatend membraan. |
| US5149470A (en) * | 1988-08-24 | 1992-09-22 | Mitsubishi Pencil Co., Ltd. | Method of making a diaphragm of carbonaceous material |
| DE3831706A1 (de) * | 1988-09-17 | 1990-03-22 | Bayer Ag | Membran fuer lautsprecher |
| JPH02243097A (ja) * | 1989-01-20 | 1990-09-27 | Mitsubishi Pencil Co Ltd | 全炭素質音響機器用振動板の製造法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2046274B (en) * | 1979-03-23 | 1983-03-30 | Pioneer Electronic Corp | Moulding compositions and acoustic articles moulded therefrom |
| US4404315A (en) * | 1979-05-05 | 1983-09-13 | Pioneer Electronic Corporation | Molding compositions and diaphragms, arm pipes and head shells molded therefrom |
-
1981
- 1981-07-31 JP JP12118081A patent/JPS5821997A/ja active Granted
-
1982
- 1982-07-29 GB GB08221939A patent/GB2115645B/en not_active Expired
- 1982-07-30 FR FR8213387A patent/FR2510857A1/fr active Granted
- 1982-07-30 DE DE19823228592 patent/DE3228592C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2510857A1 (fr) | 1983-02-04 |
| JPS5821997A (ja) | 1983-02-09 |
| DE3228592C2 (de) | 1986-04-24 |
| DE3228592A1 (de) | 1983-03-03 |
| GB2115645A (en) | 1983-09-07 |
| FR2510857B1 (enrdf_load_html_response) | 1985-01-11 |
| GB2115645B (en) | 1985-06-26 |
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