JPS55161495A - Diaphragm for acoustic transducer - Google Patents

Diaphragm for acoustic transducer

Info

Publication number
JPS55161495A
JPS55161495A JP6840879A JP6840879A JPS55161495A JP S55161495 A JPS55161495 A JP S55161495A JP 6840879 A JP6840879 A JP 6840879A JP 6840879 A JP6840879 A JP 6840879A JP S55161495 A JPS55161495 A JP S55161495A
Authority
JP
Japan
Prior art keywords
boron
magnesium
diaphragm
alloy
acoustic transducer
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
JP6840879A
Other languages
Japanese (ja)
Inventor
Hideaki Inoue
Hiroshi Takeuchi
Keizo Ishiwatari
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6840879A priority Critical patent/JPS55161495A/en
Publication of JPS55161495A publication Critical patent/JPS55161495A/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 make a diaphragm light-weight and improve the diaphragm reproducing frequency characteristic, by using the magnesium-boron alloy where magnesium and boron are main components. CONSTITUTION:A diaphragm is formed from the magnesium-boron alloy where magnesium and boron are main components. Boron content is defined as 0.1- 10wt%. Further, the magnesium-boron-cerium alloy where 0.2-5wt% cerium is added to the magnesium-boron alloy may be used.
JP6840879A 1979-05-31 1979-05-31 Diaphragm for acoustic transducer Pending JPS55161495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6840879A JPS55161495A (en) 1979-05-31 1979-05-31 Diaphragm for acoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6840879A JPS55161495A (en) 1979-05-31 1979-05-31 Diaphragm for acoustic transducer

Publications (1)

Publication Number Publication Date
JPS55161495A true JPS55161495A (en) 1980-12-16

Family

ID=13372816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6840879A Pending JPS55161495A (en) 1979-05-31 1979-05-31 Diaphragm for acoustic transducer

Country Status (1)

Country Link
JP (1) JPS55161495A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4941918A (en) * 1987-12-12 1990-07-17 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same
CN110468318A (en) * 2019-07-29 2019-11-19 卜乐平 A kind of boron magnesium-rare earth and its hot chamber diecasting, which squeeze casting feeding in time and then squeeze, enhances continuous producing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4941918A (en) * 1987-12-12 1990-07-17 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same
CN110468318A (en) * 2019-07-29 2019-11-19 卜乐平 A kind of boron magnesium-rare earth and its hot chamber diecasting, which squeeze casting feeding in time and then squeeze, enhances continuous producing method

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