JPS57176900A - Production of diaphragm for speaker - Google Patents

Production of diaphragm for speaker

Info

Publication number
JPS57176900A
JPS57176900A JP6280581A JP6280581A JPS57176900A JP S57176900 A JPS57176900 A JP S57176900A JP 6280581 A JP6280581 A JP 6280581A JP 6280581 A JP6280581 A JP 6280581A JP S57176900 A JPS57176900 A JP S57176900A
Authority
JP
Japan
Prior art keywords
diaphragm
flaky mica
conditions
prescribed shape
modulus
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
JP6280581A
Other languages
Japanese (ja)
Inventor
Kazuo Tsuchiya
Fumio Kawahara
Masaki Kumanosato
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.)
Mogami Denki Corp
Pioneer Corp
Original Assignee
Mogami Denki Corp
Pioneer Corp
Pioneer Electronic 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 Mogami Denki Corp, Pioneer Corp, Pioneer Electronic Corp filed Critical Mogami Denki Corp
Priority to JP6280581A priority Critical patent/JPS57176900A/en
Publication of JPS57176900A publication Critical patent/JPS57176900A/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 add Young's modulus to the characteristics of a diaphragm mainly composed of flaky mica similar to that of a metallic diaphragm, and to increase the high frequency reproducing threshold frequency by impregnating thermosetting resin into the flaky mica, main component, and pressing and heating the materials to form the diaphragm with a prescribed shape. CONSTITUTION:A fiber material and flaky mica are mixed and dispersed and the dispersed materials are molded into a prescribed shape to produce an original diaphragm. The original diaphragm is pressed and heated under the conditions of 4-5.5kg/cm<2> at 150-180 deg.C and dried out preparatorily. The preparatorily dried diaphragm is dipped into thermosetting resin solution to impregnate the resin and then pressed and heated to mold under the conditions of higher temperature and higher pressure than the preparatory conditions, so that a speaker diaphragm with a prescribed shape can be formed. Consequently, the high frequency reproducing threshold frequency of the diaphragm is increased, the Young's modulus and internal loss are controlled by adjusting the mixing ratio of the fiber and the flaky mica and the molding is also simplified.
JP6280581A 1981-04-24 1981-04-24 Production of diaphragm for speaker Pending JPS57176900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6280581A JPS57176900A (en) 1981-04-24 1981-04-24 Production of diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6280581A JPS57176900A (en) 1981-04-24 1981-04-24 Production of diaphragm for speaker

Publications (1)

Publication Number Publication Date
JPS57176900A true JPS57176900A (en) 1982-10-30

Family

ID=13210911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6280581A Pending JPS57176900A (en) 1981-04-24 1981-04-24 Production of diaphragm for speaker

Country Status (1)

Country Link
JP (1) JPS57176900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100371687B1 (en) * 1999-12-31 2003-02-11 엘지이노텍 주식회사 producing system of vibration and sound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100371687B1 (en) * 1999-12-31 2003-02-11 엘지이노텍 주식회사 producing system of vibration and sound

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