JPS5657397A - Speaker diaphragm - Google Patents

Speaker diaphragm

Info

Publication number
JPS5657397A
JPS5657397A JP13450879A JP13450879A JPS5657397A JP S5657397 A JPS5657397 A JP S5657397A JP 13450879 A JP13450879 A JP 13450879A JP 13450879 A JP13450879 A JP 13450879A JP S5657397 A JPS5657397 A JP S5657397A
Authority
JP
Japan
Prior art keywords
paper
drying oil
drying
diaphragm
mechanical strength
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
JP13450879A
Other languages
Japanese (ja)
Other versions
JPS5822918B2 (en
Inventor
Teruhisa Miki
Masateru Shioda
Takeshi Saiga
Noboru Saiga
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.)
MIKI TOKUSHIYU SEISHI KK
MIKI TOKUSHU SEISHI KK
Original Assignee
MIKI TOKUSHIYU SEISHI KK
MIKI TOKUSHU SEISHI KK
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 MIKI TOKUSHIYU SEISHI KK, MIKI TOKUSHU SEISHI KK filed Critical MIKI TOKUSHIYU SEISHI KK
Priority to JP13450879A priority Critical patent/JPS5822918B2/en
Publication of JPS5657397A publication Critical patent/JPS5657397A/en
Publication of JPS5822918B2 publication Critical patent/JPS5822918B2/en
Expired 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 a diaphragm having an excellent Young's modules, mechanical strength and other factors, by soaking the paper made mainly of the beaten wood pulp fiber into the mixture solution of the drying oil, the semidrying oil and others to then receive a calender process and then bonding these sheet-type papers. CONSTITUTION:The 2.5wt% internal sizing agent, the 3.0wt% sulfuric band, the 2.0wt% cationic starch and the 2.5wt% dystuff are mixed to the coniferous craft pulp beaten to the 35-degree SR to make the original paper. Such paper is soaked into the drying oil after a preriminary drying at a low temperature and then receive and roll squeezing. After this, a calender process is given under the conditions of the 40-90 deg.C roll temperature, the 30-40kg/cm linear pressure and the 10-16m/min velocity to obtain a finished paper having the 279g/m<2> weight, 0.258+ or - 0.015mm. thickness, the 1.16g/cm concentration and the 12% drying oil content each. Thus both the Young's modulus and the mechanical strength are increased with increase of the internal loss. This paper is cut into a fan shape to be bonded together. Thus a diaphragm is obtained.
JP13450879A 1979-10-17 1979-10-17 Diaphragm for speakers Expired JPS5822918B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13450879A JPS5822918B2 (en) 1979-10-17 1979-10-17 Diaphragm for speakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13450879A JPS5822918B2 (en) 1979-10-17 1979-10-17 Diaphragm for speakers

Publications (2)

Publication Number Publication Date
JPS5657397A true JPS5657397A (en) 1981-05-19
JPS5822918B2 JPS5822918B2 (en) 1983-05-12

Family

ID=15129956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13450879A Expired JPS5822918B2 (en) 1979-10-17 1979-10-17 Diaphragm for speakers

Country Status (1)

Country Link
JP (1) JPS5822918B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100384301C (en) * 2003-02-19 2008-04-23 日本胜利株式会社 Loudspeaker vibrating diaphragm, producing method of the same vibrating diaphragm and dynamic loudspeaker
CN116334961A (en) * 2023-05-15 2023-06-27 浙江博特生物科技有限公司 Semi-dry pulp molding production process and production line thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100384301C (en) * 2003-02-19 2008-04-23 日本胜利株式会社 Loudspeaker vibrating diaphragm, producing method of the same vibrating diaphragm and dynamic loudspeaker
CN116334961A (en) * 2023-05-15 2023-06-27 浙江博特生物科技有限公司 Semi-dry pulp molding production process and production line thereof

Also Published As

Publication number Publication date
JPS5822918B2 (en) 1983-05-12

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