JPS5671399A - Composite layer diaphragm plate for sound converter and its manufacture - Google Patents

Composite layer diaphragm plate for sound converter and its manufacture

Info

Publication number
JPS5671399A
JPS5671399A JP14754179A JP14754179A JPS5671399A JP S5671399 A JPS5671399 A JP S5671399A JP 14754179 A JP14754179 A JP 14754179A JP 14754179 A JP14754179 A JP 14754179A JP S5671399 A JPS5671399 A JP S5671399A
Authority
JP
Japan
Prior art keywords
diaphragm plate
raw material
vacuum vessel
plate raw
manufacture
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.)
Pending
Application number
JP14754179A
Other languages
Japanese (ja)
Inventor
Noribumi Kikuchi
Takayuki Shingyouchi
Hiroaki Yamashita
Yasuo Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP14754179A priority Critical patent/JPS5671399A/en
Publication of JPS5671399A publication Critical patent/JPS5671399A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To enable to form the sound conversion diaphragm plate with excellent characteristics having high rigidity and high elasticity in low cost and light weight, by forming silicon carbide evaporation layer on both the sides of disphragm plate raw material. CONSTITUTION:A diaphragm plate raw material 1 made of rolled thin plate material 10-50mum in thickness made of one of Ti, Ti alloy, Al and Al alloy, is located in a vacuum vessel 3. This vacuum vessel 3 is kept under 0.1-30torr, and the temperature is made at 200-700 deg.C, and after the atmosphere is taken as selicon halide, silicon chloride, or mixture of hydrocarbon and argon and hydrogen, a negative voltage of -200-1,000V is fed to the diaphragm plate raw material 1 to produce glow discharge with the vacuum vessel 3, allowing to form silicon carbide deposition layer on the surface of the diaphragm plate raw material 1.
JP14754179A 1979-11-14 1979-11-14 Composite layer diaphragm plate for sound converter and its manufacture Pending JPS5671399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14754179A JPS5671399A (en) 1979-11-14 1979-11-14 Composite layer diaphragm plate for sound converter and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14754179A JPS5671399A (en) 1979-11-14 1979-11-14 Composite layer diaphragm plate for sound converter and its manufacture

Publications (1)

Publication Number Publication Date
JPS5671399A true JPS5671399A (en) 1981-06-13

Family

ID=15432645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14754179A Pending JPS5671399A (en) 1979-11-14 1979-11-14 Composite layer diaphragm plate for sound converter and its manufacture

Country Status (1)

Country Link
JP (1) JPS5671399A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58162194A (en) * 1982-03-23 1983-09-26 Ulvac Corp Acoustic diaphragm and its production
JPS60185490A (en) * 1984-03-02 1985-09-20 Onkyo Corp Diaphragm for electroacoustic transducer and its manufacture
JPS60185489A (en) * 1984-03-02 1985-09-20 Onkyo Corp Diaphragm for electroacoustic transducer
JPS60186195A (en) * 1984-03-05 1985-09-21 Onkyo Corp Manufacture of diaphragm for electroacoustic transducer
JPS60186197A (en) * 1984-03-05 1985-09-21 Onkyo Corp Diaphragm for electroacoustic transducer and its nanufacture
JPS60186196A (en) * 1984-03-05 1985-09-21 Onkyo Corp Diaphragm for electroacoustic transducer and its manufacture
JPS60186194A (en) * 1984-03-05 1985-09-21 Onkyo Corp Manufacture of diaphragm for electroacoustic transducer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214600A (en) * 1975-07-25 1977-02-03 Ozawa Juichiro Process for the production of a thin film of silicon carbide
JPS5469425A (en) * 1977-11-12 1979-06-04 Mitsubishi Metal Corp Acoustic converter double layer vibrator and method of fabricating same
JPS5487212A (en) * 1977-12-22 1979-07-11 Matsushita Electric Ind Co Ltd Speaker diaphragm of titaniuum and production thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214600A (en) * 1975-07-25 1977-02-03 Ozawa Juichiro Process for the production of a thin film of silicon carbide
JPS5469425A (en) * 1977-11-12 1979-06-04 Mitsubishi Metal Corp Acoustic converter double layer vibrator and method of fabricating same
JPS5487212A (en) * 1977-12-22 1979-07-11 Matsushita Electric Ind Co Ltd Speaker diaphragm of titaniuum and production thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58162194A (en) * 1982-03-23 1983-09-26 Ulvac Corp Acoustic diaphragm and its production
JPH0237758B2 (en) * 1982-03-23 1990-08-27 Ulvac Corp
JPS60185490A (en) * 1984-03-02 1985-09-20 Onkyo Corp Diaphragm for electroacoustic transducer and its manufacture
JPS60185489A (en) * 1984-03-02 1985-09-20 Onkyo Corp Diaphragm for electroacoustic transducer
JPS60186195A (en) * 1984-03-05 1985-09-21 Onkyo Corp Manufacture of diaphragm for electroacoustic transducer
JPS60186197A (en) * 1984-03-05 1985-09-21 Onkyo Corp Diaphragm for electroacoustic transducer and its nanufacture
JPS60186196A (en) * 1984-03-05 1985-09-21 Onkyo Corp Diaphragm for electroacoustic transducer and its manufacture
JPS60186194A (en) * 1984-03-05 1985-09-21 Onkyo Corp Manufacture of diaphragm for electroacoustic transducer

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