GB1493298A - Reconstituted mica acoustic diaphragm - Google Patents
Reconstituted mica acoustic diaphragmInfo
- Publication number
- GB1493298A GB1493298A GB51603/75A GB5160375A GB1493298A GB 1493298 A GB1493298 A GB 1493298A GB 51603/75 A GB51603/75 A GB 51603/75A GB 5160375 A GB5160375 A GB 5160375A GB 1493298 A GB1493298 A GB 1493298A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mica
- flakes
- resin
- diaphragm
- flat
- 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
- 239000010445 mica Substances 0.000 title abstract 15
- 229910052618 mica group Inorganic materials 0.000 title abstract 15
- 239000011230 binding agent Substances 0.000 abstract 5
- 238000003776 cleavage reaction Methods 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 230000007017 scission Effects 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 229920001807 Urea-formaldehyde Polymers 0.000 abstract 1
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract 1
- 229920000058 polyacrylate Polymers 0.000 abstract 1
- 229920000647 polyepoxide Polymers 0.000 abstract 1
- 229920001225 polyester resin Polymers 0.000 abstract 1
- 239000004645 polyester resin Substances 0.000 abstract 1
- 239000004926 polymethyl methacrylate Substances 0.000 abstract 1
- 229920005749 polyurethane resin Polymers 0.000 abstract 1
- 239000005060 rubber Substances 0.000 abstract 1
- 229920002050 silicone resin Polymers 0.000 abstract 1
- 229920002379 silicone rubber Polymers 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract 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
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
-
- 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)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Manufacturing & Machinery (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14410874A JPS5427250B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-12-17 | 1974-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1493298A true GB1493298A (en) | 1977-11-30 |
Family
ID=15354360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51603/75A Expired GB1493298A (en) | 1974-12-17 | 1975-12-17 | Reconstituted mica acoustic diaphragm |
Country Status (4)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129195A (en) * | 1975-12-24 | 1978-12-12 | Sanyo Electric Co., Ltd. | Diaphragm for speaker |
| JPS5278425A (en) * | 1975-12-24 | 1977-07-01 | Sanyo Electric Co Ltd | Diaphragm for speaker |
| DE3265340D1 (en) * | 1981-03-20 | 1985-09-19 | Kuraray Co | Diaphragm for an electro-acoustic transducer |
| JPS57199397A (en) * | 1981-06-01 | 1982-12-07 | Pioneer Electronic Corp | Diaphragm with flame resistance |
| US4487877A (en) * | 1981-12-07 | 1984-12-11 | Matsushita Electric Industrial Co., Ltd. | Diaphragm for loudspeaker |
| US4471085A (en) * | 1982-03-08 | 1984-09-11 | Matsushita Electric Industrial Co., Ltd. | Diaphragm material for loudspeakers |
| JP3721478B2 (ja) * | 1996-04-12 | 2005-11-30 | フオスター電機株式会社 | スピーカ用振動板 |
| JP2002300691A (ja) * | 2001-04-02 | 2002-10-11 | Tohoku Pioneer Corp | スピーカ用振動板およびその製造方法 |
| CN102582182B (zh) * | 2012-03-15 | 2015-08-19 | 楼氏国际采购中心（马来西亚）私人有限公司 | 微型电声换能器 |
| CN112144318B (zh) * | 2020-09-24 | 2023-03-31 | 湖北中天云母制品股份有限公司 | 一种超长云母纸的制造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1192833A (en) * | 1915-11-18 | 1916-07-25 | John A Steurer | Sound-box. |
| US2760879A (en) * | 1953-03-30 | 1956-08-28 | Farnam Mfg Co Inc | Reconstituted mica sheet |
| US3226286A (en) * | 1961-11-07 | 1965-12-28 | Budd Co | Dehydrated mica products and method of making same |
| US3880972A (en) * | 1972-10-13 | 1975-04-29 | New England Mica Company | Process for manufacturing mica sheet composites |
| US3930130A (en) * | 1973-09-21 | 1975-12-30 | Union Carbide Corp | Carbon fiber strengthened speaker cone |
-
1974
- 1974-12-17 JP JP14410874A patent/JPS5427250B2/ja not_active Expired
-
1975
- 1975-11-24 US US05/634,736 patent/US4026384A/en not_active Expired - Lifetime
- 1975-12-02 DE DE2554158A patent/DE2554158C3/de not_active Expired
- 1975-12-17 GB GB51603/75A patent/GB1493298A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2554158B2 (de) | 1979-05-10 |
| DE2554158A1 (de) | 1976-06-24 |
| JPS5427250B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-09-08 |
| US4026384A (en) | 1977-05-31 |
| JPS5170631A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-06-18 |
| DE2554158C3 (de) | 1980-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19951216 |