JPS5612194A - Manufacture of diaphragm for loudspeaker - Google Patents

Manufacture of diaphragm for loudspeaker

Info

Publication number
JPS5612194A
JPS5612194A JP8722079A JP8722079A JPS5612194A JP S5612194 A JPS5612194 A JP S5612194A JP 8722079 A JP8722079 A JP 8722079A JP 8722079 A JP8722079 A JP 8722079A JP S5612194 A JPS5612194 A JP S5612194A
Authority
JP
Japan
Prior art keywords
processing
nitriding
base body
diaphragm
loudspeaker
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
JP8722079A
Other languages
Japanese (ja)
Inventor
Masaji Watanabe
Hideyuki Irie
Masahiko Hirose
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8722079A priority Critical patent/JPS5612194A/en
Publication of JPS5612194A publication Critical patent/JPS5612194A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To obtain an inexpensive loudspeaker diaphragm of superior characteristics by processing a diaphragm base body, made of a texture of metallic fiber by microwave plasma nitriding, carbonizing or boriding and then performing airtight processing. CONSTITUTION:After domed base body 17 is formed of a texture of metallic fiber such as titanium, a few base bodies 17 are arranged on the internal wall of quartz- made cylinder 16 in container 5 serving as the processing chamber of a microwave nitriding processor. Container 5 is evacuated and then supplied with nitrogen gas and hydrogen gas at an adequate ratio while fed with microwave electric power to produce plasma 25, thereby nitriding the surface of each base body 17. The airtight processing of base body 17 after nitriding processing is performed to obtain a dia- phragm for a loudspeaker. The same diaphragm is obtained carbonization processing or boriding processing in addition to the nitriding processing.
JP8722079A 1979-07-10 1979-07-10 Manufacture of diaphragm for loudspeaker Pending JPS5612194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8722079A JPS5612194A (en) 1979-07-10 1979-07-10 Manufacture of diaphragm for loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8722079A JPS5612194A (en) 1979-07-10 1979-07-10 Manufacture of diaphragm for loudspeaker

Publications (1)

Publication Number Publication Date
JPS5612194A true JPS5612194A (en) 1981-02-06

Family

ID=13908814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8722079A Pending JPS5612194A (en) 1979-07-10 1979-07-10 Manufacture of diaphragm for loudspeaker

Country Status (1)

Country Link
JP (1) JPS5612194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023238617A1 (en) * 2022-06-08 2023-12-14 ヤマハ株式会社 Tweeter diaphragm and tweeter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023238617A1 (en) * 2022-06-08 2023-12-14 ヤマハ株式会社 Tweeter diaphragm and tweeter

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