EP1051714B1 - Alliage nickel-fer magnetique mou a intensite de champ coercitif, a permeabilite plus elevee et a resistance a la corrosion amelioree - Google Patents

Alliage nickel-fer magnetique mou a intensite de champ coercitif, a permeabilite plus elevee et a resistance a la corrosion amelioree Download PDF

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Publication number
EP1051714B1
EP1051714B1 EP99906109A EP99906109A EP1051714B1 EP 1051714 B1 EP1051714 B1 EP 1051714B1 EP 99906109 A EP99906109 A EP 99906109A EP 99906109 A EP99906109 A EP 99906109A EP 1051714 B1 EP1051714 B1 EP 1051714B1
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EP
European Patent Office
Prior art keywords
mass
soft magnetic
max
alloy according
magnetic iron
Prior art date
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Expired - Lifetime
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EP99906109A
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German (de)
English (en)
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EP1051714A1 (fr
EP1051714B2 (fr
Inventor
Heike Hattendorf
Angelika Kolb-Telieps
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VDM Metals GmbH
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Krupp VDM GmbH
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14708—Fe-Ni based alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements

Definitions

  • the invention relates to a soft magnetic nickel-iron alloy.
  • the main requirements for the material are a high saturation flux density in order to to achieve high magnetic holding forces with low energy, high permeability, thus a small magnetic field strength, i.e. a low excitation current and a high flux density can be generated in the air gap and so one great attraction to the anchor. Allow low coercivity easy opening of the relay when the excitation current drops.
  • the contact surfaces of anchor and yoke must have the smallest possible gap have to a high permeability of the magnetic circuit from yoke and Reach anchor. They must not be damaged by switching the relay as the trigger current of the relay changes.
  • nickel-iron alloys are in addition to the desired Alloy elements or deoxidation and / or desulfurization elements like manganese, silicon and aluminum.
  • certain minimal additions of oxygen, sulfur, phosphorus, carbon Do not avoid calcium, magnesium, chromium, molybdenum, copper and cobalt, if you compare these alloys with usual because of the cheap cost Wants to manufacture steel mill technology. Under common steel mill technology this involves melting in an open arc furnace with subsequent ladle metallurgy and / or VOD treatment for deoxidation, desulfurization and Degassing understood.
  • the block or the continuous casting slab is in one or two steps thermoformed to a thickness of about 4 mm and then Cold-formed to its final thickness, if necessary with intermediate annealing.
  • the magnetic Properties deteriorate, as z. B. described in DE 19612556 A1 by adding carbon, nitrogen, oxygen, Sulfur and on non-metallic inclusions.
  • Non-metallic contaminants arise due to the required deoxidation and / or desulfurization treatment the melt before pouring.
  • the deoxidation and / or Desulfurizing agents are e.g. Oxides of calcium, magnesium or aluminum.
  • JP-A 07166281 relates to a magnetic alloy for magnetic heads made of Ni and Fe with additions of Nd, Pr or Sm. Here is the amount of Ni over 78% by weight.
  • the object underlying the invention is a soft magnetic Melt iron-nickel alloy that meets the requirements described magnetic properties, corrosion and wear resistance suffices and for a number of preferred applications finds soft magnetic components.
  • This task is solved by a soft magnetic iron-nickel alloy with a nickel content of 35 - 65% by mass and one or more of the sides Earth cerium, lanthanum, praseodymium or neodymium as well as melting-related Impurities, the sum of rare earths between 0.003 and 0.05 mass% and the total proportion of rare earths cerium, Lanthanum, praseodymium and neodymium in mass% at least by a factor of 4.4 is greater than the sulfur content in mass%.
  • the alloy according to the invention is preferably produced by steelwork technology, ie by melting in an open arc with subsequent ladle metallurgy and / or VOD treatment (vacuum oxidation-decarburization) for deoxidation, desulfurization and degassing. Thereafter, the block or the continuous casting slab is thermoformed in one or two steps up to a thickness of about 4 mm and then cold-formed to final thickness, if necessary with intermediate annealing to adjust the hardness required for the production of parts from this strip. Following the production of parts from this alloy and the annealing of these parts at temperatures between 800 and 1150 ° C., these parts can achieve coercive field strengths of less than 8 A / m.
  • Preferred applications of the alloy according to the invention include Relay parts, like yokes and anchors.
  • Alloys with a nickel content of less than or equal to 55% by mass all show significantly stronger signs of corrosion on the surface after the end of this alternating climate test than the alloys with nickel contents of more than 75%.
  • B. Gehrmann, H. Hattendorf, A. Kolb-Telieps, W. Kramer, W. Möttgen, in Material and Corrosion 48, 535-541 (1997) and thus do not meet the above-described requirements for a relay material in terms of corrosion resistance without additional corrosion-improving measures.
  • the magnetic properties required by DIN 17405 on the other hand, were met, as the coercive field strengths Hc given in Table 3 demonstrate (prior art). Composition in mass% Hc in A / m Max.
  • the improvement in corrosion behavior according to the invention is surprisingly by desulfurizing the more corrosion-prone nickel-iron alloys with a nickel content of 35 mass% to 65 mass% Cer reached.
  • This is preferably done with a mixed metal from the chemical behavior of very similar rare earths cerium and / or lanthanum and / or praseodymium and / or neodymium.
  • cerium content in mass% must then be at least a factor of 4.4 higher be than the sulfur content in% by mass in order to completely bind the To reach sulfur through cerium.
  • deoxidation also has to be done with cerium or a mixed metal from the rare earths cerium, lanthanum, praseodymium, Neodymium the maximum size values of the sulfidic inclusions in line form SS less than 0.1 or 1.1, the maximum size values of the oxide inclusions in dissolved form OA (aluminum oxides) less than 2.2 or 3.2 or 4.2, the maximum size values of the oxide inclusions in line form OS (silicates) less than 5.2 or 6.2 or 7.2 and the maximum size values of the oxidic Inclusions in globular form OG less than 8.2 or 9.2.
  • the magnetic values of permeability and coercive field strength which show the batches E5407 and E0545 according to the invention, are within the usual range of fluctuation of the batches melted according to the prior art, as shown in Table 6.
  • Magnetic values of batches according to the prior art (T) and the batches (E) according to the invention measured on samples of 1 mm thickness after annealing from 1080 ° C. for 4 hours under hydrogen and cooling in the oven to 450 ° C.
  • the composition of the batches is shown in Table 4.
  • Table 8 shows the examination of the content of non-metallic inclusions according to DIN 50602 in various batches according to the prior art (T) and the batches (E) according to the invention.
  • material Degree of purity according to DIN 50602 Maximum size value (method M)
  • Batch SS OA OS Upper floor Limits 0.1 or 1.1 2.2 or 3.2 or 4.2 5.2 or 6.2 or 7.2 8.2 or 9.2 E5407 k. B. 2.1 k. B. 8.0 E0545 k. B. 2.2 k. B. 8.1 T4392 k. B. 2.2 k. B. 8.0 T5405 k. B. 2.0 k. B. 8.0 T5406 k. B. 2.2 k. B. 8.0 T5477 k. B. 2.1 k. B. 8.1 T5488 k. B. 2.0 k. B. 8.0 T2536 k. B 2.7 k. B kB
  • the batch T2536 has a maximum in the form of oxide inclusions in line form Size value of 2.7 (method M). This value is for the use of this Batch too high as material for relay parts. It leads to wear on the Contact surfaces of the relay and has the loss of functionality of the relay result.
  • the content of non-metallic inclusions is therefore according to the invention limited as follows:
  • the maximum size values according to DIN 50602 of the sulfidic inclusions in Line shapes SS are less than or equal to 0.1 or 1.1, the maximum size values according to DIN 50602 of the oxidized inclusions in dissolved form OA (aluminum oxides) less than or equal to 2.2 or 3.2 or 4.2, the maximum size values according to DIN 50602 the oxide inclusions in line form OS (silicates) less than or equal to 5.2 or 6.2 or 7.2 and the maximum size values according to DIN 50602 of the oxidic inclusions in globular form OG less than or equal to 8.2 or 9.2. All others in table 8 batches listed meet the requirements for the content of non-metallic Inclusions.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Hard Magnetic Materials (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Conductive Materials (AREA)
  • Powder Metallurgy (AREA)

Claims (14)

  1. Allaige fer-nickel magnétique mou comprenant une teneur en nickel de 35-65 % en poids et une ou plusieurs des terres rares cérium, lanthane, praséodyme, néodyme ainsi que des impuretés résultant de l'élaboration, la somme des terres rares étant comprise entre 0,003 et 0,05 % en poids et la portion totale des terres rares cérium, lanthane, praséodyme et néodyme en % en poids étant plus grande d'au moins le facteur 4,4 que la teneur en soufre en % en poids.
  2. Alliage magnétique mou selon la revendication 1,
    caractérisé en ce que
    l'alliage comprend une teneur en cérium de maximum 0,05 % en poids.
  3. Alliage magnétique mou selon la revendication 1 ou 2,
    caractérisé en ce que
    l'alliage comprend en tant que des additions désoxydantes et/ou désulfurisantes max. 0,5 % en poids de manganèse, max. 0,5 % en poids de silicium et des additions de max, 0,002 % en poids de magnésium, max. 0,002 % en poids de clacium, max. 0,010 % en poids d'aluminium, max. 0,004 % en poids de soufre, max. 0,004 % en poids d"xygène et de petites quantités d"utres additions résultant de l'élaboration.
  4. Alliage magnétique mou selon l'une des revendications 1 à 3,
    caractérisé en ce que
    l'alliage comprend jusqu'à 0,002 % en poids de bore.
  5. Procédé d'élaboration d'un alliage fer-nickel magnétique mou selon les revendications 1 à 4,
    caractérisé en ce que
    l'élaboration de l'alliage est réalisée dans un four à arc ouvert suivie d'une métallurgie de poche et/ou d'un traitement de décarburation par l'oxygène sous vide pour la désoxydation, la désulfurisation et le dégazage.
  6. Procédé selon la revendication 5,
    caractérisé en ce qu'on détermine les paramètres suivants dans l'alliage élaboré :
    les valeurs maximales de dimension des inclusions sulfurées sous forme de ligne sont inférieures à 0.1 respectivement 1.1
    les valeurs maximales de dimension des inclusions oxydiques sous forme dissoute OA (oxyde d'aluminium) sont inférieures à 2.2 respectivement 3.2 respectivement 4.2
    les valeurs maximales de dimension des inclusions oxydiques sous forme de ligne OS (silicates) sont inférieures à 5.2 respectivement 6.2 respectivement 7.2
    les valeurs maximales de dimension des inclusions oxydiques sous forme globulaire OG sont inférieures à 8.2 respectivement 9.2.
  7. Procédé selon la revendication 5 ou 6,
    caractérisé en ce qu'après avoir fabriqué des parts en cet alliage et après avoir recuit ces parts aux températures comprises entre 800°C et 1150°C on obtient des intensités de champ coércitif de moins de 8A/m.
  8. Utilisation d'un alliage fer-nickel magnétique mou selon l'une des revendications 1 à 4 en tant que matière première pour des parts de relais.
  9. Utilisation d'un alliage fer-nickel magnétique mou selon l'une des revendications 1 à 4 en tant que matière première pour des couvercles et des pots de soupape des vannes magnétiques.
  10. Utilisation d'un alliage fer-nickel magnétique mou selon l'une des revendications 1 à 4 en tant que matière première pour des inducteurs respectivement des pièces polaires respectivement des cornes polaires respectivement des tôles polaires et des armatures des aimants de retenue et des éléctro-aimants.
  11. Utilisation d'un alliage fer-nickel magnétique mou selon l'une des revendications 1 à 4 en tant que matière première pour des noyaux de bobine, des stators des moteurs pas à pas et des rotors et des stators des éléctro-moteurs.
  12. Utilisation d'un alliage fer-nickel magnétique mou selon l'une des revendications 1 à 4 en tant que matière première pour des pièces usinées et découpées des senseurs, des transmetteurs de position et des récepteurs de position.
  13. Utilisation d'un alliage fer-nickel magnétique mou selon l'une des revendications 1 à 4 en tant que matière première pour des têtes magnétiques et des écrannages de tête magnétique.
  14. Utilisation d'un alliage fer-nickel magnétique mou selon l'une des revendications 1 à 4 en tant que matière première pour des écrannages.
EP99906109A 1998-01-30 1999-01-08 Alliage nickel-fer magnetique mou a intensite de champ coercitif, a permeabilite plus elevee et a resistance a la corrosion amelioree Expired - Lifetime EP1051714B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19803598A DE19803598C1 (de) 1998-01-30 1998-01-30 Weichmagnetische Nickel-Eisen-Legierung mit kleiner Koerzitivfeldstärke, hoher Permeabilität und verbesserter Korrosionsbeständigkeit
DE19803598 1998-01-30
PCT/EP1999/000066 WO1999039358A1 (fr) 1998-01-30 1999-01-08 Alliage nickel-fer magnetique mou a intensite de champ coercitif, a permeabilite plus elevee et a resistance a la corrosion amelioree

Publications (3)

Publication Number Publication Date
EP1051714A1 EP1051714A1 (fr) 2000-11-15
EP1051714B1 true EP1051714B1 (fr) 2001-12-19
EP1051714B2 EP1051714B2 (fr) 2008-04-30

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EP99906109A Expired - Lifetime EP1051714B2 (fr) 1998-01-30 1999-01-08 Alliage nickel-fer magnetique mou a intensite de champ coercitif, a permeabilite plus elevee et a resistance a la corrosion amelioree

Country Status (15)

Country Link
EP (1) EP1051714B2 (fr)
JP (2) JP2002502118A (fr)
KR (1) KR100384768B1 (fr)
CN (1) CN1163915C (fr)
AT (1) ATE211297T1 (fr)
CZ (1) CZ301345B6 (fr)
DE (2) DE19803598C1 (fr)
ES (1) ES2169597T5 (fr)
HU (1) HU222469B1 (fr)
PL (1) PL192145B1 (fr)
PT (1) PT1051714E (fr)
SK (1) SK285293B6 (fr)
TR (1) TR200002190T2 (fr)
TW (1) TW418406B (fr)
WO (1) WO1999039358A1 (fr)

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CN103498102B (zh) * 2013-08-29 2017-03-22 上海惠北特种合金有限公司 燃气灶具自动熄火保护装置用精密合金配方及其制备方法
CN104439234B (zh) * 2014-12-20 2017-01-11 河南省龙峰新材料有限公司 一种稀土元素掺杂的镍硅铝软磁材料的制备方法
CN104593670B (zh) * 2015-01-17 2017-05-31 东莞市大晋涂层科技有限公司 一种铁镍基软磁材料的制备方法
JP2016216818A (ja) * 2015-05-14 2016-12-22 Tdk株式会社 軟磁性金属粉末、および、軟磁性金属圧粉コア。
CN107326270A (zh) * 2017-05-26 2017-11-07 太仓明仕金属制造有限公司 一种金属五金件用镀镍材料
DE102018127918A1 (de) 2018-11-08 2020-05-14 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen eines Teils aus einer weichmagnetischen Legierung
CN111101057B (zh) * 2019-12-25 2021-05-25 北京北冶功能材料有限公司 一种超低温磁屏蔽用软磁合金带材及制备方法
CN111564273A (zh) * 2020-04-23 2020-08-21 钢铁研究总院 一种低成本高饱和磁感应强度的FeNi软磁合金及其制备方法
CN111863536A (zh) * 2020-08-04 2020-10-30 贵州天义电器有限责任公司 一种微小型密封电磁继电器的驱动结构
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Publication number Publication date
PT1051714E (pt) 2002-06-28
ES2169597T5 (es) 2008-11-01
PL341568A1 (en) 2001-04-23
KR20010040436A (ko) 2001-05-15
CZ20002616A3 (cs) 2000-11-15
JP2002502118A (ja) 2002-01-22
EP1051714A1 (fr) 2000-11-15
JP2007314885A (ja) 2007-12-06
HUP0003646A3 (en) 2001-04-28
ES2169597T3 (es) 2002-07-01
CZ301345B6 (cs) 2010-01-20
PL192145B1 (pl) 2006-09-29
TW418406B (en) 2001-01-11
DE59900588D1 (de) 2002-01-31
HUP0003646A2 (hu) 2001-02-28
WO1999039358A1 (fr) 1999-08-05
TR200002190T2 (tr) 2000-11-21
CN1163915C (zh) 2004-08-25
HU222469B1 (hu) 2003-07-28
SK10832000A3 (sk) 2001-03-12
CN1275238A (zh) 2000-11-29
KR100384768B1 (ko) 2003-06-18
ATE211297T1 (de) 2002-01-15
DE19803598C1 (de) 1999-04-29
EP1051714B2 (fr) 2008-04-30
SK285293B6 (sk) 2006-10-05

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