FR2421448A1 - PROCESS FOR SEPARATING FERROMAGNETIC OBJECTS FROM A MAGNETIZED PLATE - Google Patents

PROCESS FOR SEPARATING FERROMAGNETIC OBJECTS FROM A MAGNETIZED PLATE

Info

Publication number
FR2421448A1
FR2421448A1 FR7907489A FR7907489A FR2421448A1 FR 2421448 A1 FR2421448 A1 FR 2421448A1 FR 7907489 A FR7907489 A FR 7907489A FR 7907489 A FR7907489 A FR 7907489A FR 2421448 A1 FR2421448 A1 FR 2421448A1
Authority
FR
France
Prior art keywords
ferromagnetic objects
separating ferromagnetic
magnetized plate
plate
magnetic plate
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.)
Withdrawn
Application number
FR7907489A
Other languages
French (fr)
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.)
Zumbach Electronic AG
Original Assignee
Zumbach Electronic AG
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 Zumbach Electronic AG filed Critical Zumbach Electronic AG
Publication of FR2421448A1 publication Critical patent/FR2421448A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
    • B23Q3/154—Stationary devices
    • B23Q3/1543—Stationary devices using electromagnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Cleaning In General (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Relay Circuits (AREA)

Abstract

Procédé et installation permettant la démagnétisation d'une plaque magnétique et la séparation d'objets ferromagnétiques adhérents à ladite plaque, la bobine de la plaque magnétique étant alimentée par un courant alternatif de fréquence variable. Ce procédé utilise un générateur d'impulsions couplé à un générateur à rampe ce qui permet de faire varier électroniquement ou au besoin manuellement la fréquence du courant qui passe dans la bobine de magnétisation.Method and installation for demagnetizing a magnetic plate and separating ferromagnetic objects adhering to said plate, the coil of the magnetic plate being supplied with an alternating current of variable frequency. This method uses a pulse generator coupled to a ramp generator which makes it possible to vary electronically or if necessary manually the frequency of the current which passes through the magnetization coil.

FR7907489A 1978-03-31 1979-03-22 PROCESS FOR SEPARATING FERROMAGNETIC OBJECTS FROM A MAGNETIZED PLATE Withdrawn FR2421448A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH346378A CH627299A5 (en) 1978-03-31 1978-03-31

Publications (1)

Publication Number Publication Date
FR2421448A1 true FR2421448A1 (en) 1979-10-26

Family

ID=4256480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907489A Withdrawn FR2421448A1 (en) 1978-03-31 1979-03-22 PROCESS FOR SEPARATING FERROMAGNETIC OBJECTS FROM A MAGNETIZED PLATE

Country Status (7)

Country Link
AU (1) AU4528079A (en)
BE (1) BE874933A (en)
CH (1) CH627299A5 (en)
DE (1) DE2912338A1 (en)
FR (1) FR2421448A1 (en)
GB (1) GB2018032A (en)
IT (1) IT1113240B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059290A1 (en) * 1970-12-02 1972-06-15 Klauschenz & Perrot Mains connection device for electromagnetic clamping plates or the like.
US3895270A (en) * 1974-04-29 1975-07-15 Western Electric Co Method of and apparatus for demagnetizing a magnetic material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059290A1 (en) * 1970-12-02 1972-06-15 Klauschenz & Perrot Mains connection device for electromagnetic clamping plates or the like.
US3895270A (en) * 1974-04-29 1975-07-15 Western Electric Co Method of and apparatus for demagnetizing a magnetic material

Also Published As

Publication number Publication date
GB2018032A (en) 1979-10-10
CH627299A5 (en) 1981-12-31
IT7921345A0 (en) 1979-03-27
AU4528079A (en) 1979-10-04
BE874933A (en) 1979-07-16
DE2912338A1 (en) 1979-10-04
IT1113240B (en) 1986-01-20

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Legal Events

Date Code Title Description
RE Withdrawal of published application