JPS6138913B2 - - Google Patents
Info
- Publication number
- JPS6138913B2 JPS6138913B2 JP8173679A JP8173679A JPS6138913B2 JP S6138913 B2 JPS6138913 B2 JP S6138913B2 JP 8173679 A JP8173679 A JP 8173679A JP 8173679 A JP8173679 A JP 8173679A JP S6138913 B2 JPS6138913 B2 JP S6138913B2
- Authority
- JP
- Japan
- Prior art keywords
- whiskers
- polyoxymethylene
- diaphragm
- pulp
- modulus
- 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
- -1 polyoxymethylene Polymers 0.000 claims description 16
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 15
- 229920006324 polyoxymethylene Polymers 0.000 claims description 15
- 239000013078 crystal Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 2
- 239000000123 paper Substances 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 239000004922 lacquer Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8173679A JPS566593A (en) | 1979-06-28 | 1979-06-28 | Diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8173679A JPS566593A (en) | 1979-06-28 | 1979-06-28 | Diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS566593A JPS566593A (en) | 1981-01-23 |
| JPS6138913B2 true JPS6138913B2 (enrdf_load_stackoverflow) | 1986-09-01 |
Family
ID=13754705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8173679A Granted JPS566593A (en) | 1979-06-28 | 1979-06-28 | Diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS566593A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5892195A (ja) * | 1981-11-28 | 1983-06-01 | Onkyo Corp | 電気音響変換器用振動板 |
-
1979
- 1979-06-28 JP JP8173679A patent/JPS566593A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS566593A (en) | 1981-01-23 |
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