EP0818550A1 - Corrosion resistant soft magnetic iron-nickel-chrome alloy - Google Patents

Corrosion resistant soft magnetic iron-nickel-chrome alloy Download PDF

Info

Publication number
EP0818550A1
EP0818550A1 EP97109558A EP97109558A EP0818550A1 EP 0818550 A1 EP0818550 A1 EP 0818550A1 EP 97109558 A EP97109558 A EP 97109558A EP 97109558 A EP97109558 A EP 97109558A EP 0818550 A1 EP0818550 A1 EP 0818550A1
Authority
EP
European Patent Office
Prior art keywords
nickel
soft magnetic
max
magnetic iron
resistant soft
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Withdrawn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
EP97109558A
Other languages
German (de)
French (fr)
Inventor
Bodo Dipl.-Phys. Gehrmann
Angelika Dr. Kolb-Telieps
Ulrich Dr. Heubner
Wolfgang Möttgen
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.)
Krupp VDM GmbH
Original Assignee
Krupp VDM GmbH
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 Krupp VDM GmbH filed Critical Krupp VDM GmbH
Publication of EP0818550A1 publication Critical patent/EP0818550A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel

Definitions

  • the invention relates to a corrosion-resistant soft magnetic iron-nickel-chrome alloy, especially for relay parts.
  • the standard DIN 17745 "Wrought alloys made of nickel and iron” mentions the alloys NiFe16CuCr (material no. 2.4511), NiFe16CuMo (2.4531) and NiFe15Mo (2.4551) as well as for the type RNi 2 the alloys NiFe16CuCr (material No. 2.4515), NiFe16CuMo (2.4535) and NiFe15Mo (2.4555).
  • Table 2 shows an extract from the DIN 17745 standard.
  • RNi 24, RNi 12 are in Table 1 and RNi 8 with 36 or about 50% by mass Ni.
  • the latter differ from the high ones nickel-containing alloys in that they have less nickel included, are free from other essentials Alloy elements and in particular one according to Table 1 higher magnetic induction at a field strength of 4000 A / m, which corresponds to the saturation induction, have.
  • Both the high nickel alloys also the second group of iron-nickel materials medium nickel contents are susceptible to corrosion due to air humidity, especially near the coast climate.
  • the iron-nickel-chromium alloy according to the invention achieved Surprisingly, almost the standard values of the magnetic Properties of the relay material types RNi 5 and RNi 2. Considering the low nickel content were rather expected magnetic properties that those of Material types RNi 8, 12 and 24 according to Table 1 are similar. But this is not the case.
  • the saturation flux density Bs the Fe-Ni-Cr alloy according to the invention is about 0.79 T.
  • the coercive field strength Hc is lower at about 1.5 A / m than that in the DIN 17405 standard for the type of material RNi 2 required maximum limit of 2.5 A / m. This Values are by means of static magnetization measurements, performed on punched rings from 1 mm strip thickness have been determined.
  • the Fe-Ni-Cr alloy according to the invention is under operating conditions in a 30 t electric arc furnace melted and after a block and hot strip rolling with further processing steps to tape the test thickness 1.0 mm cold rolled.
  • test rings were subjected to an annealing treatment under a pure hydrogen atmosphere at 1100 ° C. for 6 hours. The cooling took place in the oven up to about 450 ° C., followed by cooling in air.
  • the magnetic properties of the alloy E according to the invention are listed in Table 4 in comparison to the values of the materials RNi2 and RNi5, which describe the prior art.
  • the Fe-Ni-Cr alloy according to the invention Due to the high chromium content, the Fe-Ni-Cr alloy according to the invention a better one Corrosion resistance on than the low nickel ones Fe-Ni alloys without chrome. It assigns one to the comparable high-nickel Fe-Ni alloys Resistance to.
  • a major advantage of iron-nickel-chromium alloy according to the invention in Comparison to the high nickel soft magnetic Iron-nickel alloys are the much smaller ones Nickel content and thus a significant cost advantage comparable good magnetic properties.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

Use of a corrosion-resistant soft magnetic iron-nickel-chromium alloy containing (in wt.%): 38.0-42.0 Ni, 7.5-9.5 Cr, max. 1.0 Mn, max. 0.3 Si, and a balance of Fe and impurities, as a material for return pole pieces and tie rods of electromagnetic relays subjected to corrosive media, the relays having a coercive field strength of max. 2.5 A/m at a saturation flow density of >0.75T.

Description

Die Erfindung betrifft eine korrosionsbeständige weichmagnetische Eisen-Nickel-Chrom-Legierung, insbesondere für Relaisteile.The invention relates to a corrosion-resistant soft magnetic iron-nickel-chrome alloy, especially for relay parts.

Es ist bekannt, daß weichmagnetische Eisen-Nickel-Legierungen Anwendung als Kern- und Joch-Werkstoff für elektromagnetische Relais finden. Die Hauptanforderungen, die an Kern- und Joch-Werkstoffe für elektromagnetische Relais gestellt werden, sind eine hohe Permeabilität und eine schmale Hystereseschleife. Eine hohe Permeabilität und eine mit der schmalen Hystereseschleife einhergehende niedrige Koerzitivfeldstärke werden gefordert, weil eine kleine magnetische Feldstärke, d.h. ein geringer erregender Strom im Luftspalt eine hohe Flußdichte erzeugen soll, damit eine hohe Anziehungskraft auf den Anker ausgeübt wird. Außerdem ermöglicht eine niedrige Koerzitivfeldstärke ein leichtes Öffnen des Relais bei Unterbrechung des erregenden Stromes.It is known that soft magnetic iron-nickel alloys Application as core and yoke material for Find electromagnetic relays. The main requirements the core and yoke materials for electromagnetic Relays are high permeability and a narrow hysteresis loop. A high permeability and one accompanying the narrow hysteresis loop low coercivity is required because of a small magnetic field strength, i.e. a little exciting current in the air gap has a high flux density should generate so that a high attraction to the Anchor is exercised. It also allows a low Coercive field strength with an easy opening of the relay Interruption of the exciting current.

Den Stand der Technik für weichmagnetische Eisen-Nickel-Legierungen als Kern- und Joch-Werkstoff für elektromagnetische Relais gibt hinsichtlich der magnetischen Eigenschaften die Tabelle 1 wieder, die der Norm DIN 17405 "Weichmagnetische Werkstoffe für Gleichstromrelais" bezüglich der Werkstoffgruppe der Nickellegierungen entnommen sind.

Figure 00020001
The state of the art for soft magnetic iron-nickel alloys as core and yoke material for electromagnetic relays is given in Table 1 with regard to the magnetic properties, which are taken from standard DIN 17405 "Soft magnetic materials for direct current relays" with regard to the material group of nickel alloys.
Figure 00020001

Die Norm DIN 17745 "Knetlegierungen aus Nickel und Eisen" nennt als Ausgangswerkstoffe für die Sorte RNi 5 die Legierungen NiFe16CuCr (Werkstoff-Nr. 2.4511), NiFe16CuMo (2.4531) und NiFe15Mo (2.4551) sowie für die Sorte RNi 2 die Legierungen NiFe16CuCr (Werkstoff-Nr. 2.4515), NiFe16CuMo (2.4535) und NiFe15Mo (2.4555). Die Tabelle 2 stellt einen Auszug aus der Norm DIN 17745 dar.

Figure 00030001
The standard DIN 17745 "Wrought alloys made of nickel and iron" mentions the alloys NiFe16CuCr (material no. 2.4511), NiFe16CuMo (2.4531) and NiFe15Mo (2.4551) as well as for the type RNi 2 the alloys NiFe16CuCr (material No. 2.4515), NiFe16CuMo (2.4535) and NiFe15Mo (2.4555). Table 2 shows an extract from the DIN 17745 standard.
Figure 00030001

Aus diesen Beschreibungen geht hervor, daß für die Eisen-Nickel-Relaiswerkstoff-Sorten RNi 5 und RNi 2, die eine Sättigungsflußdichte Bs von etwa 0,75 T aufweisen, hochnickelhaltige Legierungen mit Beimengungen von Mo und/oder Cu und Cr genannt werden. Hierbei ist zu beachten, daß im Fall der Legierung NiFe16CuCr der Chromgehalt nur bei Werten zwischen 1,5 und 2,5 Masse-% liegt. These descriptions show that for the iron-nickel relay material grades RNi 5 and RNi 2, the one Have saturation flux density Bs of about 0.75 T, high nickel alloys with additions of Mo and / or Cu and Cr can be mentioned. Here is too note that in the case of NiFe16CuCr alloy, the chromium content is only between 1.5 and 2.5 mass%.

Daneben sind in Tabelle 1 noch die Sorten RNi 24, RNi 12 und RNi 8 mit 36 bzw. etwa 50 Masse-% Ni genannt.In addition, the varieties RNi 24, RNi 12 are in Table 1 and RNi 8 with 36 or about 50% by mass Ni.

Die letzteren unterscheiden sich von den hoch nickelhaltigen Legierungen darin, daß sie weniger Nickel enthalten, frei sind von wesentlichen weiteren Legierungselementen und gemäß Tabelle 1 insbesondere eine höhere magnetische Induktion bei einer Feldstärke von 4000 A/m, welche der Sättigungsinduktion entspricht, besitzen. Sowohl die hochnickelhaltigen Legierungen als auch die zweite Gruppe der Eisen-Nickel-Werkstoffe mit mittlerem Nickelgehalt sind anfällig gegen Korrosion durch Luftfeuchtigkeit, insbesondere in küstennahem Klima.The latter differ from the high ones nickel-containing alloys in that they have less nickel included, are free from other essentials Alloy elements and in particular one according to Table 1 higher magnetic induction at a field strength of 4000 A / m, which corresponds to the saturation induction, have. Both the high nickel alloys also the second group of iron-nickel materials medium nickel contents are susceptible to corrosion due to air humidity, especially near the coast Climate.

Es war deshalb die Aufgabe gestellt, eine neue weichmagnetische Eisen-Nickel-Legierung zu finden, welche die sehr niedrige Koerzitivfeldstärke und die Sättigungsinduktion der hoch nickelhaltigen Legierungen verbindet mit gleichzeitig guter Korrosionsbeständigkeit, insbesondere gegenüber Luftfeuchtigkeit.It was therefore the task of a new one to find soft magnetic iron-nickel alloy the very low coercive force and the Saturation induction of the high nickel alloys combines with good corrosion resistance, especially against humidity.

Diese Aufgabe wird erfindungsgemäß gelöst mit einer Legierung bestehend aus (Angabe in Masse-%):

  • 38,0 bis 42,0 % Nickel
  • 7,5 bis 9,5 % Chrom
  • max. 1,0 % Mangan
  • max. 0,3 % Silizium
  • Rest Eisen und herstellungsbedingte Verunreinigungen
  • This object is achieved according to the invention with an alloy consisting of (indication in mass%):
  • 38.0 to 42.0% nickel
  • 7.5 to 9.5% chromium
  • Max. 1.0% manganese
  • Max. 0.3% silicon
  • Balance iron and manufacturing-related impurities
  • Die erfindungsgemäße Eisen-Nickel-Chrom-Legierung erzielt überraschenderweise nahezu die Normwerte der magnetischen Eigenschaften der Relaiswerkstoffsorten RNi 5 und RNi 2. In Anbetracht des niedrigen Nickelgehalts waren eher magnetische Eigenschaften zu erwarten, welche denen der Werkstoffsorten RNi 8, 12 und 24 gemäß Tabelle 1 ähneln. Dem ist aber nicht so. Die Sättigungsflußdichte Bs der erfindungsgemäßen Fe-Ni-Cr-Legierung beträgt etwa 0,79 T. Die Koerzitivfeldstärke Hc ist mit etwa 1,5 A/m niedriger als der in der Norm DIN 17405 für die Werkstoffsorte RNi 2 geforderte maximale Grenzwert von 2,5 A/m. Diese Werte sind mittels statischen Magnetisierungsmessungen, die an gestanzten Ringen aus 1 mm Banddicken durchgeführt wurden, bestimmt worden.The iron-nickel-chromium alloy according to the invention achieved Surprisingly, almost the standard values of the magnetic Properties of the relay material types RNi 5 and RNi 2. Considering the low nickel content were rather expected magnetic properties that those of Material types RNi 8, 12 and 24 according to Table 1 are similar. But this is not the case. The saturation flux density Bs the Fe-Ni-Cr alloy according to the invention is about 0.79 T. The coercive field strength Hc is lower at about 1.5 A / m than that in the DIN 17405 standard for the type of material RNi 2 required maximum limit of 2.5 A / m. This Values are by means of static magnetization measurements, performed on punched rings from 1 mm strip thickness have been determined.

    Die erfindungsgemäße Fe-Ni-Cr-Legierung ist unter betrieblichen Bedingungen in einem 30 t Lichtbogenofen erschmolzen und nach einer Block- und Warmbandwalzung mit weiteren Verarbeitungsschritten zu Band der Prüfdicke 1,0 mm kaltgewalzt worden.The Fe-Ni-Cr alloy according to the invention is under operating conditions in a 30 t electric arc furnace melted and after a block and hot strip rolling with further processing steps to tape the test thickness 1.0 mm cold rolled.

    Die Testringe waren vor der Messung der magnetischen Eigenschaften einer Glühbehandlung unter reiner Wasserstoffatmosphäre 6h lang bei 1100 °C unterzogen worden. Die Abkühlung erfolgte bis etwa 450 °C im Ofen mit einer darauf folgenden Abkühlung an Luft. Die magnetischen Eigenschaften der erfindungsgemäßen Legierung E, deren chemische Zusammensetzung Tabelle 3 enthält, sind in der Tabelle 4 aufgeführt im Vergleich zu den Werten der Werkstoffen RNi2 und RNi5, die den Stand der Technik beschreiben.

    Figure 00060001
    Figure 00070001
    Before the measurement of the magnetic properties, the test rings were subjected to an annealing treatment under a pure hydrogen atmosphere at 1100 ° C. for 6 hours. The cooling took place in the oven up to about 450 ° C., followed by cooling in air. The magnetic properties of the alloy E according to the invention, the chemical composition of which is shown in Table 3, are listed in Table 4 in comparison to the values of the materials RNi2 and RNi5, which describe the prior art.
    Figure 00060001
    Figure 00070001

    Aufgrund des hohen Chromgehalts weist die erfindungsgemäße Fe-Ni-Cr-Legierung eine bessere Korrosionsbeständigkeit auf als die niedrignickelhaltigen Fe-Ni-Legierungen ohne Chrom. Sie weist eine zu den hochnickelhaltigen Fe-Ni-Legierungen vergleichbare Beständigkeit auf. Ein wesentlicher Vorteil der erfindungsgemäßen Eisen-Nickel-Chrom-Legierung im Vergleich zu den hochnickelhaltigen weichmagnetischen Eisen-Nickel-Legierungen ist der wesentlich geringere Nickelgehalt und damit ein deutlicher Kostenvorteil bei vergleichbaren guten magnetischen Eigenschaften.Due to the high chromium content, the Fe-Ni-Cr alloy according to the invention a better one Corrosion resistance on than the low nickel ones Fe-Ni alloys without chrome. It assigns one to the comparable high-nickel Fe-Ni alloys Resistance to. A major advantage of iron-nickel-chromium alloy according to the invention in Comparison to the high nickel soft magnetic Iron-nickel alloys are the much smaller ones Nickel content and thus a significant cost advantage comparable good magnetic properties.

    Claims (2)

    Korrosionsbeständige weichmagnetische Eisen-Nickel-Chrom-Legierung mit einer Koerzitivfeldstärke von max. 2,5 A/m bei einer Sättigungsflußdichte von größer als 0,75 T,
    gekennzeichnet durch (in Masse-%) 38,0 bis 42,0 % Ni, 7,5 bis 9,5 % Cr, max. 1,0 % Mn, max. 0,3 % Si, Rest Fe und herstellungsbedingte Verunreinigungen.
    Corrosion-resistant soft magnetic iron-nickel-chromium alloy with a coercive force of max. 2.5 A / m at a saturation flux density of greater than 0.75 T,
    characterized by (in mass%) 38.0 to 42.0% Ni, 7.5 to 9.5% Cr, Max. 1.0% Mn, Max. 0.3% Si, Balance Fe and manufacturing-related impurities.
    Verwendung der weichmagnetischen Eisen-Nickel-Chrom-Legierung gemäß Anspruch 1 als Werkstoff für Joche und Anker von korrosiven Medien ausgesetzten elektromagnetischen Relais.Use of the soft magnetic iron-nickel-chrome alloy according to claim 1 as a material for yokes and anchors exposed to corrosive media electromagnetic relay.
    EP97109558A 1996-07-12 1997-06-12 Corrosion resistant soft magnetic iron-nickel-chrome alloy Withdrawn EP0818550A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19628139 1996-07-12
    DE1996128139 DE19628139C1 (en) 1996-07-12 1996-07-12 Use of a corrosion-resistant soft magnetic iron-nickel-chrome alloy for yokes and armatures of electromagnetic relays

    Publications (1)

    Publication Number Publication Date
    EP0818550A1 true EP0818550A1 (en) 1998-01-14

    Family

    ID=7799656

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97109558A Withdrawn EP0818550A1 (en) 1996-07-12 1997-06-12 Corrosion resistant soft magnetic iron-nickel-chrome alloy

    Country Status (4)

    Country Link
    EP (1) EP0818550A1 (en)
    JP (1) JPH1081941A (en)
    KR (1) KR980009496A (en)
    DE (1) DE19628139C1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2468755A (en) * 2009-03-13 2010-09-22 Vacuumschmelze Gmbh & Co Kg Low hysteresis sensor
    EP2662582A1 (en) 2012-05-08 2013-11-13 Technymon S.R.L. Manufacturing process of a multi-layer sliding bearing and multi-layer sliding bearing
    CN114318172A (en) * 2022-01-04 2022-04-12 西南科技大学 A kind of iron-nickel alloy with ultra-high soft magnetic properties and preparation method thereof

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19930969A1 (en) * 1998-09-10 2000-04-20 Continental Teves Ag & Co Ohg Solenoid valve
    DE102009020564B4 (en) 2009-05-08 2020-10-08 Stiebel Eltron Gmbh & Co. Kg Instantaneous water heater with a radiator and a relay for disconnecting the radiator from a power supply network and a method therefor
    KR102697208B1 (en) * 2016-09-21 2024-08-22 한국전력공사 Hard stuck ice and snow-preventing device

    Citations (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPH03191041A (en) * 1989-12-20 1991-08-21 Nisshin Steel Co Ltd Fe-ni-cr series soft magnetic alloy
    JPH03277746A (en) * 1990-03-28 1991-12-09 Nisshin Steel Co Ltd Soft magnetic alloy showing good magnetic property by vacuum magnetic annealing
    JPH03277718A (en) * 1990-03-27 1991-12-09 Nisshin Steel Co Ltd Production of ni-fe-cr soft-magnetic alloy
    EP0508148A2 (en) * 1991-03-13 1992-10-14 Nisshin Steel Co., Ltd. Soft magnetic alloy material
    US5158624A (en) * 1989-09-04 1992-10-27 Nisshin Steel Company Ltd. Soft-magnetic nickel-iron-chromium alloy
    JPH04337051A (en) * 1991-05-15 1992-11-25 Nisshin Steel Co Ltd Ni-cr-fe soft-magnetic alloy excellent in blankability
    JPH04337052A (en) * 1991-05-15 1992-11-25 Nisshin Steel Co Ltd Ni-fe alloy and ni-cr-fe alloy excellent in blankability
    JPH04358045A (en) * 1991-06-04 1992-12-11 Nisshin Steel Co Ltd Ni-cr-fe soft magnetic alloy
    JPH06122947A (en) * 1992-10-12 1994-05-06 Nisshin Steel Co Ltd Soft magnetic alloy for high-frequency

    Family Cites Families (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPS5338695B2 (en) * 1972-01-27 1978-10-17

    Patent Citations (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5158624A (en) * 1989-09-04 1992-10-27 Nisshin Steel Company Ltd. Soft-magnetic nickel-iron-chromium alloy
    JPH03191041A (en) * 1989-12-20 1991-08-21 Nisshin Steel Co Ltd Fe-ni-cr series soft magnetic alloy
    JPH03277718A (en) * 1990-03-27 1991-12-09 Nisshin Steel Co Ltd Production of ni-fe-cr soft-magnetic alloy
    JPH03277746A (en) * 1990-03-28 1991-12-09 Nisshin Steel Co Ltd Soft magnetic alloy showing good magnetic property by vacuum magnetic annealing
    EP0508148A2 (en) * 1991-03-13 1992-10-14 Nisshin Steel Co., Ltd. Soft magnetic alloy material
    JPH04337051A (en) * 1991-05-15 1992-11-25 Nisshin Steel Co Ltd Ni-cr-fe soft-magnetic alloy excellent in blankability
    JPH04337052A (en) * 1991-05-15 1992-11-25 Nisshin Steel Co Ltd Ni-fe alloy and ni-cr-fe alloy excellent in blankability
    JPH04358045A (en) * 1991-06-04 1992-12-11 Nisshin Steel Co Ltd Ni-cr-fe soft magnetic alloy
    JPH06122947A (en) * 1992-10-12 1994-05-06 Nisshin Steel Co Ltd Soft magnetic alloy for high-frequency

    Non-Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Title
    PATENT ABSTRACTS OF JAPAN vol. 15, no. 445 (C - 0884) 13 November 1991 (1991-11-13) *
    PATENT ABSTRACTS OF JAPAN vol. 16, no. 98 (C - 0918) 11 March 1992 (1992-03-11) *
    PATENT ABSTRACTS OF JAPAN vol. 17, no. 180 (C - 1046) 8 April 1993 (1993-04-08) *
    PATENT ABSTRACTS OF JAPAN vol. 17, no. 221 (C - 1054) 7 May 1993 (1993-05-07) *
    PATENT ABSTRACTS OF JAPAN vol. 18, no. 415 (C - 1233) 4 August 1994 (1994-08-04) *

    Cited By (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB2468755A (en) * 2009-03-13 2010-09-22 Vacuumschmelze Gmbh & Co Kg Low hysteresis sensor
    GB2468755B (en) * 2009-03-13 2011-06-22 Vacuumschmelze Gmbh & Co Kg A sensor
    US8405391B2 (en) 2009-03-13 2013-03-26 Vacuumschmelze Gmbh & Co. Kg Low hysteresis sensor
    EP2662582A1 (en) 2012-05-08 2013-11-13 Technymon S.R.L. Manufacturing process of a multi-layer sliding bearing and multi-layer sliding bearing
    CN114318172A (en) * 2022-01-04 2022-04-12 西南科技大学 A kind of iron-nickel alloy with ultra-high soft magnetic properties and preparation method thereof
    CN114318172B (en) * 2022-01-04 2022-11-18 西南科技大学 Iron-nickel alloy with ultrahigh soft magnetic performance and preparation method thereof

    Also Published As

    Publication number Publication date
    KR980009496A (en) 1998-04-30
    DE19628139C1 (en) 1997-11-20
    JPH1081941A (en) 1998-03-31

    Similar Documents

    Publication Publication Date Title
    EP1051714A1 (en) Soft magnetic nickel-iron alloy with low coercive field strength, high permeability and improved resistance to corrosion
    DE60104792T2 (en) Fe-Ni permalloy and process for its preparation
    US5091024A (en) Corrosion resistant, magnetic alloy article
    DE2553003C2 (en) Magnetic core for a transformer, motor or generator
    DE68917213T2 (en) Sintered Nd-Fe-B magnet and its manufacturing process.
    DE19934989B4 (en) A composite magnetic member, a method of manufacturing the ferromagnetic member thereof, and a method of manufacturing the non-magnetic member thereof
    EP2756106A1 (en) Non-grain-oriented higher-strength electrical strip with high polarisation and method for the production thereof
    DE68921856T2 (en) Soft magnetic Fe-based alloy.
    EP0392204A2 (en) Use of a microcrystalline iron-based alloy as a magnetic material for a fault current-protective switch
    EP0006953A4 (en) Unmagnetizable cast steel alloy, use and making thereof.
    DE19628139C1 (en) Use of a corrosion-resistant soft magnetic iron-nickel-chrome alloy for yokes and armatures of electromagnetic relays
    JP2646277B2 (en) Ni-Fe-Cr soft magnetic alloy for iron core members
    DE69014049T2 (en) Magnetostrictive cobalt iron alloys and their product applications.
    DE4442420A1 (en) Soft magnetic iron-based alloy with cobalt for magnetic circuits or excitation circuits
    DE69027201T2 (en) CORROSION-RESISTANT MAGNET OF THE TM-B-RE TYPE AND THEIR PRODUCTION METHOD
    DE69307970T2 (en) Process for producing a permanent magnet based on NdFeB
    DE102011001488A1 (en) Linear electric motor comprises a stator and a rotor, where the stator and/or the rotor has a soft magnetic core formed as a sheet metal package, which comprises nickel, cobalt, manganese, silicon and chromium and/or molybdenum
    DE3410596A1 (en) Electromagnetic trip device for earth-leakage current protection circuit breakers
    DE19904951A1 (en) Soft magnetic iron-nickel alloy for relay, magnetic valve, magnet, motor and sensor parts, magnetic heads and screens has silicon and/or niobium additions and can be produced by conventional steel making technology
    DE19628138C1 (en) Iron@-nickel@ alloy for making soft magnetic components
    DE69619345T2 (en) Temperature-stabilized permanent magnet
    EP0740313B1 (en) Use of a magnetically soft nickel-iron alloy with high saturation induction and Vickers-hardness for relay components
    DE10327522B4 (en) Soft magnetic alloy, stepper motor for an electric clock with a stator made of this soft magnetic alloy and quartz clock
    DE19900351A1 (en) New soft magnetic iron-nickel alloy, especially for relay armatures and yokes, has a high nickel content and contains cerium and-or other rare earths
    WO2000063454A1 (en) Corrosion-free iron-nickel alloy for residual-current circuit-breakers and clockworks

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT CH DE ES FR IT LI

    17P Request for examination filed

    Effective date: 19980707

    AKX Designation fees paid

    Free format text: AT CH DE ES FR IT LI

    RBV Designated contracting states (corrected)

    Designated state(s): AT CH DE ES FR IT LI

    17Q First examination report despatched

    Effective date: 19981005

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

    18W Application withdrawn

    Withdrawal date: 19990813