JPS6313593B2 - - Google Patents
Info
- Publication number
- JPS6313593B2 JPS6313593B2 JP7854580A JP7854580A JPS6313593B2 JP S6313593 B2 JPS6313593 B2 JP S6313593B2 JP 7854580 A JP7854580 A JP 7854580A JP 7854580 A JP7854580 A JP 7854580A JP S6313593 B2 JPS6313593 B2 JP S6313593B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- metal
- circumferential direction
- rollers
- frusto
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 239000013078 crystal Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 7
- 239000007769 metal material Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 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
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 |
|---|---|---|---|
| JP7854580A JPS574693A (en) | 1980-06-10 | 1980-06-10 | Truncated circular cone type metallic diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7854580A JPS574693A (en) | 1980-06-10 | 1980-06-10 | Truncated circular cone type metallic diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS574693A JPS574693A (en) | 1982-01-11 |
| JPS6313593B2 true JPS6313593B2 (cs) | 1988-03-26 |
Family
ID=13664880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7854580A Granted JPS574693A (en) | 1980-06-10 | 1980-06-10 | Truncated circular cone type metallic diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS574693A (cs) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129377A (ja) * | 1983-01-11 | 1984-07-25 | イズミ工業株式会社 | 溶融保持炉 |
| JPS6050796U (ja) * | 1983-09-12 | 1985-04-10 | イズミ工業株式会社 | 溶融保持炉 |
| CH655328A5 (de) * | 1984-02-15 | 1986-04-15 | Fischer Ag Georg | Keramikfilter. |
| JPS61257435A (ja) * | 1985-05-10 | 1986-11-14 | Topy Ind Ltd | アルミニウム系金属材料から含有不純物を除去する方法 |
| JPS61257436A (ja) * | 1985-05-10 | 1986-11-14 | Topy Ind Ltd | アルミニウム系金属材料から含有不純物を除去する方法 |
-
1980
- 1980-06-10 JP JP7854580A patent/JPS574693A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS574693A (en) | 1982-01-11 |
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