JPS5544208A - Manufacture for diaphragm for speaker - Google Patents

Manufacture for diaphragm for speaker

Info

Publication number
JPS5544208A
JPS5544208A JP11480478A JP11480478A JPS5544208A JP S5544208 A JPS5544208 A JP S5544208A JP 11480478 A JP11480478 A JP 11480478A JP 11480478 A JP11480478 A JP 11480478A JP S5544208 A JPS5544208 A JP S5544208A
Authority
JP
Japan
Prior art keywords
diaphragm
silicon
carbide
sintered
speaker
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.)
Granted
Application number
JP11480478A
Other languages
Japanese (ja)
Other versions
JPS5718395B2 (en
Inventor
Kazuro Okuzawa
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 JP11480478A priority Critical patent/JPS5544208A/en
Publication of JPS5544208A publication Critical patent/JPS5544208A/en
Publication of JPS5718395B2 publication Critical patent/JPS5718395B2/ja
Granted 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 realize the manufacturing method of speaker diaphragm by sintered carbonization to obtain the diaphragm excellent in rigidity and molding performance. CONSTITUTION:The material in which the polycarvosilane 1 is dissolved into solvent such as methylketone and the powder 2 such as silicon, silicon oxide, titanium, boron and silicon carbide is mixed to it, is formed into the diaphragm for speakers or it is formed into the shape of diaphragm after it is once formed into sheet. This is sintered and carbonized at high temperature of 1000-1400 deg.C gradually heated under inactive gas or non-oxygen atmosphere. As a result, the polycarbosilane, silicon and silicon oxide are sintered into silicon carbide, and the entire is formed into the diaphragm 3 for speaders made of silicon carbide, titanium carbide, and boron carbide.
JP11480478A 1978-09-18 1978-09-18 Manufacture for diaphragm for speaker Granted JPS5544208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11480478A JPS5544208A (en) 1978-09-18 1978-09-18 Manufacture for diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11480478A JPS5544208A (en) 1978-09-18 1978-09-18 Manufacture for diaphragm for speaker

Publications (2)

Publication Number Publication Date
JPS5544208A true JPS5544208A (en) 1980-03-28
JPS5718395B2 JPS5718395B2 (en) 1982-04-16

Family

ID=14647098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11480478A Granted JPS5544208A (en) 1978-09-18 1978-09-18 Manufacture for diaphragm for speaker

Country Status (1)

Country Link
JP (1) JPS5544208A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60132499A (en) * 1983-12-20 1985-07-15 Onkyo Corp Diaphragm for electro-acoustic converter and its manufacture
JPH02233097A (en) * 1989-03-07 1990-09-14 Mitsubishi Mining & Cement Co Ltd Speaker diaphragm and manufacture thereof
DE4126510A1 (en) * 1991-08-08 1993-02-11 Mathias Dr Herrmann High strength and fracture toughness sintered silicon nitride body mfr. - by wet milling silicon nitride powder with additives, drying and sintering, esp. for machine and tool cutting and wear parts
DE4105325A1 (en) * 1990-02-21 1996-01-25 Dow Corning Manufacture of high-density boron carbide ceramic bodies with preceramic polymer binders

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60132499A (en) * 1983-12-20 1985-07-15 Onkyo Corp Diaphragm for electro-acoustic converter and its manufacture
JPH0418759B2 (en) * 1983-12-20 1992-03-27 Onkyo Kk
JPH02233097A (en) * 1989-03-07 1990-09-14 Mitsubishi Mining & Cement Co Ltd Speaker diaphragm and manufacture thereof
DE4105325A1 (en) * 1990-02-21 1996-01-25 Dow Corning Manufacture of high-density boron carbide ceramic bodies with preceramic polymer binders
DE4105325C2 (en) * 1990-02-21 1998-04-16 Dow Corning A process for producing a machinable green boron carbide body, a process for producing a sintered boron carbide body and a uniform mixture comprising boron carbide powder and a preceramic organosilicon polymer
DE4126510A1 (en) * 1991-08-08 1993-02-11 Mathias Dr Herrmann High strength and fracture toughness sintered silicon nitride body mfr. - by wet milling silicon nitride powder with additives, drying and sintering, esp. for machine and tool cutting and wear parts

Also Published As

Publication number Publication date
JPS5718395B2 (en) 1982-04-16

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