JPS57147398A - Speaker diaphragm and its production - Google Patents

Speaker diaphragm and its production

Info

Publication number
JPS57147398A
JPS57147398A JP3269481A JP3269481A JPS57147398A JP S57147398 A JPS57147398 A JP S57147398A JP 3269481 A JP3269481 A JP 3269481A JP 3269481 A JP3269481 A JP 3269481A JP S57147398 A JPS57147398 A JP S57147398A
Authority
JP
Japan
Prior art keywords
diaphragm
silumine
cooling
specific gravity
speaker diaphragm
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
JP3269481A
Other languages
English (en)
Inventor
Tadashi Hikita
Shintaro Hirose
Yasushi Miyoshi
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP3269481A priority Critical patent/JPS57147398A/ja
Publication of JPS57147398A publication Critical patent/JPS57147398A/ja
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)
JP3269481A 1981-03-06 1981-03-06 Speaker diaphragm and its production Pending JPS57147398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3269481A JPS57147398A (en) 1981-03-06 1981-03-06 Speaker diaphragm and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3269481A JPS57147398A (en) 1981-03-06 1981-03-06 Speaker diaphragm and its production

Publications (1)

Publication Number Publication Date
JPS57147398A true JPS57147398A (en) 1982-09-11

Family

ID=12365959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3269481A Pending JPS57147398A (en) 1981-03-06 1981-03-06 Speaker diaphragm and its production

Country Status (1)

Country Link
JP (1) JPS57147398A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223296A (ja) * 1984-04-19 1985-11-07 Onkyo Corp 電気音響機器用材料
KR20020073286A (ko) * 2001-03-13 2002-09-23 야자키 소교 가부시키가이샤 자동차용 상자형부재
US7344001B2 (en) * 2005-05-25 2008-03-18 Onkyo Corporation Speaker diaphragm and speaker structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223296A (ja) * 1984-04-19 1985-11-07 Onkyo Corp 電気音響機器用材料
KR20020073286A (ko) * 2001-03-13 2002-09-23 야자키 소교 가부시키가이샤 자동차용 상자형부재
US7344001B2 (en) * 2005-05-25 2008-03-18 Onkyo Corporation Speaker diaphragm and speaker structure

Similar Documents

Publication Publication Date Title
ATE77842T1 (de) Feinkoernige metallzusammensetzung.
EP0095597A3 (en) Process for preparing a slurry structured metal composition
EP0850827A3 (en) Bicycle crank and method for manufacturing same
KR860000949A (ko) 섬유강화 알루미늄 복합주조체의 제조법
JPS57147398A (en) Speaker diaphragm and its production
ATE43266T1 (de) Giessmaschine.
AU541573B2 (en) Oscillating mold casting apparatus
JPS5641047A (en) Production of casting
JPS5614050A (en) Core fixing method
JPS57198241A (en) Pig iron as starting material for manufacturing cv cast iron casting and manufacture of cv cast iron casting using it
JPS53118209A (en) Powder metallurgical method of manufacturing high-silicon containing sinteted aluminum alloy
JPS5499712A (en) Shaping method for material of irregular shape using hydrostatic pressure
JPS5582829A (en) Brake disc and its manufacturing method
JPS57146465A (en) Production of composite casting
JPS5266592A (en) Preparation of cationic polychloroprene latexes
JPS5630071A (en) Manufacture of grid for lead storage battery
JPS57195573A (en) Production of composite material for casting by alloy powder
Poltorak et al. Study of Mechanical Properties of Aluminium Ingots Made From Secondary Raw Material
JPS57187145A (en) Continuous casting method for ingot of superior surface characteristic
JPS552757A (en) Manufacture of high strength aluminum alloy material
Weidermann Manufacture of Aluminum Wire by the" Properzi" Process.(WAA Translation)
JPS5794459A (en) Die casting method for metal part of centrifugally cast composite roll of steel type core material
Fohl Knowledge in Production of Thin-Walled Zinc Die Castings
JPS5562102A (en) Forming method of hollow object by hot hydrostatic press method
Stern Methods of Making Aluminum-Lead Alloys