DE3361854D1 - Method and device for treating ferromagnetic materials - Google Patents

Method and device for treating ferromagnetic materials

Info

Publication number
DE3361854D1
DE3361854D1 DE8383107298T DE3361854T DE3361854D1 DE 3361854 D1 DE3361854 D1 DE 3361854D1 DE 8383107298 T DE8383107298 T DE 8383107298T DE 3361854 T DE3361854 T DE 3361854T DE 3361854 D1 DE3361854 D1 DE 3361854D1
Authority
DE
Germany
Prior art keywords
ferromagnetic materials
pulse
polarity
pulses
treatment
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.)
Expired
Application number
DE8383107298T
Other languages
German (de)
Inventor
Boris Georgiev Dipl Makedonski
Janaki Rostislavov Dip Blaskov
Ljubomir Pavlov Dipl I Alipiev
Nedeltscho Christov Di Todorov
Haralampi Angelov Di Atanassov
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.)
ZENTRALEN MASH I
Original Assignee
ZENTRALEN MASH I
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 ZENTRALEN MASH I filed Critical ZENTRALEN MASH I
Application granted granted Critical
Publication of DE3361854D1 publication Critical patent/DE3361854D1/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

1. Method for the treatment of ferromagnetic materials in which the materials (9) are exposed to a pulse magnetic field with certain pulse recurrence frequency, amplitude and length and are demagnetized at the end of the treatment, characterized in that the pulse field is bipolar with a ration of positive and negative amplitudes of 1.8 to 0.2, with the pulses of the one polarity having the same or lower recurrence frequency than the pulses of the other polarity.
DE8383107298T 1982-07-27 1983-07-25 Method and device for treating ferromagnetic materials Expired DE3361854D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG8257551A BG38909A1 (en) 1982-07-27 1982-07-27 Method and device for acting on ferromagnetic materials

Publications (1)

Publication Number Publication Date
DE3361854D1 true DE3361854D1 (en) 1986-02-27

Family

ID=3911066

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383107298T Expired DE3361854D1 (en) 1982-07-27 1983-07-25 Method and device for treating ferromagnetic materials

Country Status (8)

Country Link
EP (1) EP0101922B1 (en)
JP (1) JPS5972115A (en)
AT (1) ATE17535T1 (en)
AU (2) AU1722983A (en)
BG (1) BG38909A1 (en)
CA (1) CA1223303A (en)
CS (1) CS256908B1 (en)
DE (1) DE3361854D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG41281A1 (en) * 1985-07-29 1987-05-15 Makedonski Device for magneto- impulse treatment of ferromagnetic materials
EP1513168B1 (en) * 2003-09-02 2017-03-08 Albert Maurer Method and apparatus for magnetising a magnet system
US7868721B2 (en) * 2008-04-04 2011-01-11 Cedar Ridge Research, Llc Field emission system and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790729A (en) * 1971-11-19 1973-02-15 Lenoir Raoul Ets COIL EXCITATION CURRENT CONTROL DEVICE PRODUCING A MAGNETIC FLOW OF REVERSE POLARITY
CH582411A5 (en) * 1975-03-03 1976-11-30 Bbc Brown Boveri & Cie
US4158873A (en) * 1977-08-31 1979-06-19 Magnaflux Corporation Demagnetizing methods and apparatus
IT1119003B (en) * 1979-06-25 1986-03-03 Riv Officine Di Villar Perosa DEMAGNETIZER DEVICE
DD146726A1 (en) * 1979-10-22 1981-02-25 Siegfried Wirthgen METHOD FOR GENERATING DC CURRENT PULSES IN COILS OF ELECTROMAGNETS
IT1141165B (en) * 1980-02-06 1986-10-01 Sdm Sistemi & Dispositivi Magn SYSTEM AND CIRCUIT PROVISION FOR THE DEMAGNETIZATION OF PERMANENT MAGNETS

Also Published As

Publication number Publication date
BG38909A1 (en) 1986-03-14
AU1377388A (en) 1988-07-07
CA1223303A (en) 1987-06-23
AU1722983A (en) 1984-02-02
ATE17535T1 (en) 1986-02-15
EP0101922A1 (en) 1984-03-07
EP0101922B1 (en) 1986-01-15
CS256908B1 (en) 1988-04-15
JPS5972115A (en) 1984-04-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee