AT274532B - Verfahren zur Herstellung eines Topfes für ein Lautsprechermagnetsystem aus einem Stück Weicheisen - Google Patents

Verfahren zur Herstellung eines Topfes für ein Lautsprechermagnetsystem aus einem Stück Weicheisen

Info

Publication number
AT274532B
AT274532B AT189667A AT189667A AT274532B AT 274532 B AT274532 B AT 274532B AT 189667 A AT189667 A AT 189667A AT 189667 A AT189667 A AT 189667A AT 274532 B AT274532 B AT 274532B
Authority
AT
Austria
Prior art keywords
pot
piece
production
magnet system
soft iron
Prior art date
Application number
AT189667A
Other languages
English (en)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT274532B publication Critical patent/AT274532B/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/20—Making uncoated products by backward extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/024—Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Forging (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
AT189667A 1966-03-01 1967-02-27 Verfahren zur Herstellung eines Topfes für ein Lautsprechermagnetsystem aus einem Stück Weicheisen AT274532B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6602605A NL6602605A (de) 1966-03-01 1966-03-01

Publications (1)

Publication Number Publication Date
AT274532B true AT274532B (de) 1969-09-25

Family

ID=19795863

Family Applications (1)

Application Number Title Priority Date Filing Date
AT189667A AT274532B (de) 1966-03-01 1967-02-27 Verfahren zur Herstellung eines Topfes für ein Lautsprechermagnetsystem aus einem Stück Weicheisen

Country Status (8)

Country Link
AT (1) AT274532B (de)
BE (1) BE694726A (de)
CH (1) CH446863A (de)
DE (1) DE1275612B (de)
ES (1) ES337320A1 (de)
FR (1) FR1512899A (de)
GB (1) GB1177804A (de)
NL (1) NL6602605A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106583485B (zh) * 2016-12-22 2018-03-02 南昌工程学院 大直径法兰气缸的成形方法

Also Published As

Publication number Publication date
BE694726A (de) 1967-08-28
NL6602605A (de) 1967-09-04
CH446863A (de) 1967-11-15
GB1177804A (en) 1970-01-14
FR1512899A (fr) 1968-02-09
DE1275612B (de) 1968-08-22
ES337320A1 (es) 1968-06-01

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