DE3019121C2 - Formmasse - Google Patents
FormmasseInfo
- Publication number
- DE3019121C2 DE3019121C2 DE3019121A DE3019121A DE3019121C2 DE 3019121 C2 DE3019121 C2 DE 3019121C2 DE 3019121 A DE3019121 A DE 3019121A DE 3019121 A DE3019121 A DE 3019121A DE 3019121 C2 DE3019121 C2 DE 3019121C2
- Authority
- DE
- Germany
- Prior art keywords
- elasticity
- graphite flakes
- molding compound
- molding
- weight
- 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
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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
- G11B3/30—Supporting in an inoperative position
- G11B3/31—Construction of arms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/08—Homopolymers or copolymers of vinylidene chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
50
5
E | P |
(x 1010 N/m) | ikg/m3) |
7,0 | 1840 |
12,5 | 1790 |
18.0 | 1790 |
7,1 | 2690 |
11,9 | 4390 |
23.0 | 1800 |
0.2 | 570 |
Spezifischer | Innerer Verlust |
Elastizitätsmodul | |
tan δ | |
(x 103 m/sec) | |
6,2 | 0,05 |
8,4 | 0,02 |
10.0 | 0,01 |
5,1 | 0,003 |
5.2 | 0,003 |
11,3 | 0,005 |
1.9 | 0,08 |
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803050025 DE3050025C2 (de) | 1979-05-28 | 1980-05-20 | Rohrartiger Arm für akustische Geräte oder Tonkopfgehäuse |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6494979A JPS55157630A (en) | 1979-05-28 | 1979-05-28 | Molding material |
JP6940979A JPS6031004B2 (ja) | 1979-06-05 | 1979-06-05 | ア−ムパイプ |
JP6941079A JPS6031005B2 (ja) | 1979-06-05 | 1979-06-05 | ヘツドシエル |
JP6941279A JPS5857958B2 (ja) | 1979-06-05 | 1979-06-05 | 音響機器用振動板 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3019121A1 DE3019121A1 (de) | 1980-12-04 |
DE3019121C2 true DE3019121C2 (de) | 1983-09-08 |
Family
ID=27464510
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3019121A Expired DE3019121C2 (de) | 1979-05-28 | 1980-05-20 | Formmasse |
DE3050026A Expired DE3050026C2 (de) | 1979-05-28 | 1980-05-20 | Akustische Membran |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3050026A Expired DE3050026C2 (de) | 1979-05-28 | 1980-05-20 | Akustische Membran |
Country Status (3)
Country | Link |
---|---|
US (1) | US4404315A (de) |
DE (2) | DE3019121C2 (de) |
GB (1) | GB2051106B (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821997A (ja) * | 1981-07-31 | 1983-02-09 | Pioneer Electronic Corp | スピ−カ用振動板 |
FR2518348B1 (fr) * | 1981-12-16 | 1987-04-10 | Guyot Michel | Membrane de haut-parleur et procede pour sa fabrication |
US4680139A (en) * | 1985-04-08 | 1987-07-14 | Ferro Corporation | Electrostatically conductive premold coating |
US5019446A (en) * | 1988-11-21 | 1991-05-28 | Battelle Memorial Institute | Enhancement of mechanical properties of polymers by thin flake addition and apparatus for producing such thin flakes |
US4987175A (en) * | 1988-11-21 | 1991-01-22 | Battelle Memorial Institute | Enhancement of the mechanical properties by graphite flake addition |
US5065948A (en) * | 1988-11-21 | 1991-11-19 | Battelle Memorial Institute | Apparatus for producing thin flakes |
US5830180A (en) * | 1996-07-17 | 1998-11-03 | Aquarius Medical Corporation | Fluid management system for arthroscopic surgery |
US6598700B1 (en) | 1999-04-15 | 2003-07-29 | Ernest C. Schroeder | Compression molded cellulose (CMC) loudspeaker cabinets and method for making same |
EP1388274A2 (de) * | 2001-05-11 | 2004-02-11 | New Transducers Limited | Akustisches element für einen lautsprecher mit einer komponente, die eine ausgewählte frequenzabhängigkeit aufweist und verfahren zu dessen herstellung |
FR2854021B1 (fr) * | 2003-04-16 | 2006-03-31 | Focal Jmlab | Transducteur acoustiques en beryllium pur a radiation directe, a membrane de forme concave, pour applications audio notamment pour enceintes acoustiques |
GB2417604A (en) * | 2004-08-26 | 2006-03-01 | Emet Makar | Tinnitus masking device |
US8284964B2 (en) | 2006-11-08 | 2012-10-09 | Knowles Electronics Asia Pte. Ltd. | Compound membrane, method of manufacturing the same, and acoustic device |
JP6448055B2 (ja) * | 2015-11-09 | 2019-01-09 | 富士フイルム株式会社 | 超音波内視鏡及び超音波内視鏡の製造方法 |
JP6649044B2 (ja) | 2015-11-10 | 2020-02-19 | 富士フイルム株式会社 | 超音波内視鏡及び超音波内視鏡の製造方法 |
US20230238021A1 (en) * | 2022-01-26 | 2023-07-27 | Kronos Audio Products Inc. | Resonant suppressor for record player tone arm |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2550139A (en) * | 1948-11-12 | 1951-04-24 | Us Rubber Co | Blends of butadiene-acrylonitrile rubbery copolymers having a toluene-insoluble "b" gel content of from 30 to 50% and hard resinous styrene-acrylonitrile copolymers |
US3316327A (en) * | 1959-03-23 | 1967-04-25 | Monsanto Co | Vinyl chloride polymers containing elastomer and graft copolymer as compatibilizer |
US3275716A (en) * | 1962-07-17 | 1966-09-27 | Dow Chemical Co | Vinylidene chloride polymer compositions and films therefrom |
US3399103A (en) * | 1964-05-08 | 1968-08-27 | Monsanto Res Corp | Vibration damping composition and laminated construction |
US3399104A (en) * | 1964-07-28 | 1968-08-27 | Monsanto Res Corp | Vibration damping composition and laminated construction |
US3419511A (en) * | 1965-07-19 | 1968-12-31 | Atlantic Refining Co | Plasticized polyvinyl chloride compositions containing an acrylonitrile-butadiene rubber and flexible, oil resistant films and sheets produced therefrom |
GB1209823A (en) * | 1968-02-26 | 1970-10-21 | Imp Chemical Idustries Ltd | Vibration damping materials |
DE2540378C3 (de) * | 1975-09-10 | 1980-12-11 | Wacker-Chemie Gmbh, 8000 Muenchen | Verfahren zur Herstellung von pulverförmiger!, rieselfähigen Mischungen aus Äthylen-Vinylacetat-Polymeren und pulverförmigem Polyvinylchlorid |
US4173596A (en) * | 1977-12-23 | 1979-11-06 | The B. F. Goodrich Company | Soft-seeded tougheners for polyvinyl chloride |
JPS5487209A (en) | 1977-12-23 | 1979-07-11 | Pioneer Electronic Corp | Method of fabricating acoustic device vibrating plate |
CA1123986A (en) * | 1978-12-29 | 1982-05-18 | Herbert F. Schwarz | Rubbery compositions |
GB2046274B (en) * | 1979-03-23 | 1983-03-30 | Pioneer Electronic Corp | Moulding compositions and acoustic articles moulded therefrom |
-
1980
- 1980-05-08 US US06/147,866 patent/US4404315A/en not_active Expired - Lifetime
- 1980-05-13 GB GB8015804A patent/GB2051106B/en not_active Expired
- 1980-05-20 DE DE3019121A patent/DE3019121C2/de not_active Expired
- 1980-05-20 DE DE3050026A patent/DE3050026C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2051106A (en) | 1981-01-14 |
US4404315A (en) | 1983-09-13 |
DE3019121A1 (de) | 1980-12-04 |
DE3050026C2 (de) | 1986-11-13 |
GB2051106B (en) | 1983-09-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3019121C2 (de) | Formmasse | |
DE2941644C2 (de) | Lautsprechermembran und Verfahren zu ihrer Herstellung | |
DE2259859C3 (de) | Verfahren zur Herstellung von Schreibspitzen aus einem Bündel synthetischer Fasern | |
DE2938182C2 (de) | Verfahren zur Herstellung einer akustischen Membran | |
DE3545793C2 (de) | ||
DE2935097A1 (de) | Aethylen/vinylalkohol-copolymermembran | |
DE2362036A1 (de) | Mikroporoese filtermedien | |
DE2853022A1 (de) | Verfahren zur herstellung eines diaphragmas fuer eine akustische vorrichtung | |
DE2616704C3 (de) | Verfahren zum Herstellen von Formkorpern aus Polytetrafluorethylen | |
EP0641635B1 (de) | Verfahren zur Herstellung von Schaumstoffplatten mit verbesserten Schalldämmeigenschaften | |
DE2141617A1 (de) | Verfahren zur Herstellung von modifiziertem Polyvinylidenfluorid | |
CH442849A (de) | Käseform mit beweglichem Formteil | |
DE3307946C2 (de) | ||
DE2306839B2 (de) | Elektrisch leitfähiges Führungsstück | |
DE3723146A1 (de) | Verfahren zur herstellung eines elektrodensubstrats und so hergestelltes elektrodensubstrat, dessen physikalischen eigenschaften einheitlich sind | |
DE3688678T2 (de) | Biaxial orientierte Polyoxymethylenfolie. | |
DE3886288T2 (de) | Biaxial orientierte Polyoxymethylen-Folie. | |
DE2926648C2 (de) | In einem akustischen Instrument, insbesondere einem Lautsprecher, einsetzbare Membran und Verfahren zur Herstellung der Membran | |
DE3011056C2 (de) | Formkörper zur Verwendung als Bauelement in akustischen Instrumenten | |
DE3921622A1 (de) | Verfahren zur herstellung eines voll kohlenstoffhaltigen diaphragmas fuer eine akustikanlage | |
DE3050025C2 (de) | Rohrartiger Arm für akustische Geräte oder Tonkopfgehäuse | |
DE69027850T2 (de) | Verfahren zur herstellung einer kohlenstoffschicht | |
DE2743640B2 (de) | Lautsprechermembran | |
DE2933435C2 (de) | Rohrartiger Arm für Tonarme von Plattenspielern sowie Verfahren zur Herstellung des rohrartigen Armes | |
DE2933434C2 (de) | Tonkopfgehäuse für Tonarme von Plattenspielern sowie Verfahren zur Herstellung der Tonkopfgehäuse |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 3050025 Format of ref document f/p: P |
|
AH | Division in |
Ref country code: DE Ref document number: 3050025 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 3050025 |
|
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 3050026 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 3050026 |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
AH | Division in |
Ref country code: DE Ref document number: 3050025 Format of ref document f/p: P |
|
AH | Division in |
Ref country code: DE Ref document number: 3050026 Format of ref document f/p: P |
|
8339 | Ceased/non-payment of the annual fee |