FR2475283A1 - Procede et dispositif pour la demagnetisation des aimants permanents - Google Patents
Procede et dispositif pour la demagnetisation des aimants permanents Download PDFInfo
- Publication number
- FR2475283A1 FR2475283A1 FR8101920A FR8101920A FR2475283A1 FR 2475283 A1 FR2475283 A1 FR 2475283A1 FR 8101920 A FR8101920 A FR 8101920A FR 8101920 A FR8101920 A FR 8101920A FR 2475283 A1 FR2475283 A1 FR 2475283A1
- Authority
- FR
- France
- Prior art keywords
- demagnetization
- capacitors
- discharges
- pulses
- capacitor bank
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 36
- 230000005347 demagnetization Effects 0.000 claims abstract description 33
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 230000005415 magnetization Effects 0.000 claims description 15
- 230000003247 decreasing effect Effects 0.000 claims description 9
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 241000158147 Sator Species 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- QZIQJVCYUQZDIR-UHFFFAOYSA-N mechlorethamine hydrochloride Chemical compound Cl.ClCCN(C)CCCl QZIQJVCYUQZDIR-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
- H01F13/003—Methods and devices for magnetising permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Treatment Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19720/80A IT1141165B (it) | 1980-02-06 | 1980-02-06 | Sistema e disposizione circuitale per la smagnetizzazione di magneti permanenti |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2475283A1 true FR2475283A1 (fr) | 1981-08-07 |
| FR2475283B3 FR2475283B3 (it) | 1982-11-26 |
Family
ID=11160643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8101920A Granted FR2475283A1 (fr) | 1980-02-06 | 1981-01-29 | Procede et dispositif pour la demagnetisation des aimants permanents |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE886740A (it) |
| DE (1) | DE3049351A1 (it) |
| FR (1) | FR2475283A1 (it) |
| GB (1) | GB2069259A (it) |
| IT (1) | IT1141165B (it) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG38909A1 (en) * | 1982-07-27 | 1986-03-14 | Makedonski | Method and device for acting on ferromagnetic materials |
| US4621299A (en) * | 1982-11-05 | 1986-11-04 | General Kinetics Inc. | High energy degausser |
| US4591943A (en) * | 1983-05-26 | 1986-05-27 | Electro-Matic Products Co. | Apparatus for demagnetizing a chuck |
| JPS60171517A (ja) * | 1984-02-16 | 1985-09-05 | Hayashibara Takeshi | 単一コイルによるνｓ磁束パルス発生装置 |
| DE3609530C2 (de) * | 1986-03-21 | 1995-08-31 | Erich Dr Ing Steingroever | Verfahren zum automatischen Einstellen des Arbeitspunktes von Dauermagneten |
| DE3613714A1 (de) * | 1986-04-21 | 1987-10-22 | Mannesmann Ag | Verfahren und vorrichtung zum entmagnetisieren von staehlen |
| DE3625621C2 (de) * | 1986-07-29 | 1995-03-16 | Vallon Gmbh | Anordnung zur Entmagnetisierung |
| DE3812458A1 (de) * | 1988-04-14 | 1989-10-26 | Masinostroitelen Eksperimental | Vorrichtung zur magnet-impuls-behandlung von ferromagnetischen werkstoffen |
| WO1990003653A1 (en) * | 1988-09-29 | 1990-04-05 | Astec America Inc. | Magnet molding apparatus and method |
| GB2320814B (en) * | 1996-12-31 | 2000-11-29 | Redcliffe Magtronics Ltd | An apparatus for altering the magnetic state of a permanent magnet |
| DE10014383C2 (de) * | 2000-03-23 | 2003-07-31 | Micronas Munich Gmbh | Entmagnetisierungsschaltung |
| DE10044800C2 (de) * | 2000-09-11 | 2003-07-31 | Infineon Technologies Ag | Entmagnetisierungsschaltung |
| EP2175459B1 (en) * | 2008-10-11 | 2012-07-25 | Schunk GmbH & Co. KG Spann- und Greiftechnik | Method to operate a control device for energising at least one coil of a permanently magnetisable chuck and corresponding control device |
| EP2974820B1 (de) | 2014-07-17 | 2017-04-12 | Ewm Ag | Lichtbogenschweißgerät, System und Verfahren zum Abmagnetisieren eines Metallrohres |
| DE102018127614A1 (de) * | 2018-11-06 | 2020-05-07 | Albert Maurer | Vorrichtung zum Entmagnetisieren von ferromagnetischen Materialien |
| DE102023110352A1 (de) * | 2023-04-24 | 2024-10-24 | Schaeffler Technologies AG & Co. KG | Verfahren zur Herstellung eines Rotors, Computerprogrammprodukt, Steuereinheit und Entmagnetisierungsvorrichtung |
-
1980
- 1980-02-06 IT IT19720/80A patent/IT1141165B/it active
- 1980-12-18 BE BE0/203227A patent/BE886740A/fr not_active IP Right Cessation
- 1980-12-24 DE DE19803049351 patent/DE3049351A1/de not_active Withdrawn
-
1981
- 1981-01-13 GB GB8100893A patent/GB2069259A/en not_active Withdrawn
- 1981-01-29 FR FR8101920A patent/FR2475283A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT1141165B (it) | 1986-10-01 |
| BE886740A (fr) | 1981-04-16 |
| FR2475283B3 (it) | 1982-11-26 |
| GB2069259A (en) | 1981-08-19 |
| DE3049351A1 (de) | 1981-09-17 |
| IT8019720A0 (it) | 1980-02-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |