ACOUSTIC VIBRATION PLATE AND METHOD FOR MANUFACTURING ACOUSTIC VIBRATION PLATE

An acoustic vibration plate 10 is provided with a metal foil 11 and a thermoplastic resin film 12 laminated on the metal foil 11. The ratio of a linear coefficient of expansion CTEZ in the thickness direction to a linear coefficient of expansion CTEX of the thermoplastic resin film 12, or CTEZ/CTEX,...

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Bibliographische Detailangaben
Hauptverfasser:	KASAHARA, Junya, TACHIBANA, Eisuke
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	An acoustic vibration plate 10 is provided with a metal foil 11 and a thermoplastic resin film 12 laminated on the metal foil 11. The ratio of a linear coefficient of expansion CTEZ in the thickness direction to a linear coefficient of expansion CTEX of the thermoplastic resin film 12, or CTEZ/CTEX, is 3.0 to 10.0 inclusive. The total of the basis weights of the metal foil 11 and the thermoplastic resin film 12 is 45 g/m2 to 150 g/m2 inclusive.