TI-AL ALLOY MADE DIAPHRAGM AND ITS MANUFACTURE

PURPOSE:To reproduce a high-pitched sound range over a wide band, to reduce the resonance peak at the high-pitched sound range and to improve the reproduction efficiency by making the diaphragm with a Ti-Al alloy of specific constituent. CONSTITUTION:The Ti-Al alloy made diaphragm is made of a Ti-Al...

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Bibliographic Details
Main Authors MOCHIZUKI OSAMU, HOSHI TOSHIHARU
Format Patent
LanguageEnglish
Published 22.04.1992
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
FORGE FURNACES
FORGING
HAMMERING
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PRESSING METAL
PUBLIC ADDRESS SYSTEMS
PUNCHING METAL
RIVETING
TRANSPORTING
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Summary:PURPOSE:To reproduce a high-pitched sound range over a wide band, to reduce the resonance peak at the high-pitched sound range and to improve the reproduction efficiency by making the diaphragm with a Ti-Al alloy of specific constituent. CONSTITUTION:The Ti-Al alloy made diaphragm is made of a Ti-Al alloy comprising 24atom%-26atom% of Ti and 74atom%-76atom% of Al. It is most desirable to employ an intermetallic compound of TiAl3 for the alloy of the diaphragm. Since the sound velocity of the Ti-Al alloy having a prescribed constituent is sufficiently high-pitched sound range reproduction is enough for the diaphragm and it has a large internal loss, then a resonance peak at a high-pitched sound range is suppressed to be a small value. Furthermore, since the Ti-Al alloy of a prescribed component has a sufficient density, the reproduction efficiency of the diaphragm is excellent.
Bibliography:Application Number: JP19900243603