EP1051714B2 - Weichmagnetische nickel-eisen-legierung mit kleiner koerzitivfeldstärke, hoher permeabilität und verbesserter korrosionsbeständigkeit - Google Patents

Weichmagnetische nickel-eisen-legierung mit kleiner koerzitivfeldstärke, hoher permeabilität und verbesserter korrosionsbeständigkeit Download PDF

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Publication number
EP1051714B2
EP1051714B2 EP99906109A EP99906109A EP1051714B2 EP 1051714 B2 EP1051714 B2 EP 1051714B2 EP 99906109 A EP99906109 A EP 99906109A EP 99906109 A EP99906109 A EP 99906109A EP 1051714 B2 EP1051714 B2 EP 1051714B2
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EP
European Patent Office
Prior art keywords
mass
maximum
alloy
melting
rare earths
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 - Lifetime
Application number
EP99906109A
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German (de)
English (en)
French (fr)
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EP1051714B1 (de
EP1051714A1 (de
Inventor
Heike Hattendorf
Angelika Kolb-Telieps
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VDM Metals GmbH
Original Assignee
ThyssenKrupp 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 of the material are a high saturation flux density to achieve large magnetic holding forces at low energy, high permeability, so that a small magnetic field strength, i. a small excitation current and a high flux density in the air gap can be generated and so acts a large attraction to the anchor.
  • Low coercive field strengths allow easy opening of the relay when the excitation current decreases.
  • the contact surfaces of the armature and yoke must have the smallest possible gap in order to achieve a high permeability of the magnetic circuit yoke and armature. They must not be damaged by switching the relay, because then the tripping current of the relay changes.
  • the block or the continuous casting slab is thermoformed in one or two steps to a thickness of about 4 mm and then cold-worked to final thickness if necessary with intermediate annealing.
  • the magnetic properties deteriorate, as z.
  • Non-metallic impurities arise due to the required deoxidation and / or desulfurization treatment of the melt prior to casting.
  • oxides of calcium, magnesium or aluminum for example, oxides of calcium, magnesium or aluminum.
  • the JP-A 07166281 relates to a magnetic alloy for magnetic heads consisting of Ni and Fe with additions of Nd, Pr or Sm.
  • the amount of Ni is over 78% by weight.
  • the object underlying the invention is to provide a method for melting a soft magnetic iron-nickel alloy, which satisfies the described requirements for the magnetic properties, the corrosion and the wear resistance.
  • the alloy is preferably produced by steelworking technology, ie, open-arc melting followed by ladle metallurgy and / or vacuum-oxidation-decarburization (VOD) treatment for deoxidation, desulfurization, and degassing. After that, the. Block or the continuous cast slab in one or two steps thermoformed to a thickness of about 4 mm and then cold worked to final thickness, if necessary, with intermediate annealing to adjust the hardness required for the production of parts of this band. Subsequent to the production of parts from this alloy and the annealing of these parts at temperatures between 800 and 1150 ° C, coercive forces of less than 8 A / m can be achieved with these parts.
  • VOD vacuum-oxidation-decarburization
  • Preferred applications of the alloy according to the invention are i.a. Relay parts, such as yokes and anchors.
  • the alloys with a nickel content of less than or equal to 55% by mass show, after the end of this alternating climate test, all significantly greater corrosion phenomena on the surface than the alloys with nickel contents of more than 75%.
  • the magnetic properties required by DIN 17405 were satisfied, as demonstrated by the coercive forces Hc given by way of example in Table 3 (prior art).
  • the improvement of the corrosion behavior according to the invention is surprisingly achieved by desulfurization of the more corrosion-susceptible nickel-iron alloys having a nickel content of from 35% by weight to 65% by weight with cerium.
  • This is preferably carried out with a mischmetal of the rare earths cerium and / or lanthanum and / or praseodymium and / or neodymium which are very similar in chemical behavior.
  • a mischmetal of the rare earths cerium and / or lanthanum and / or praseodymium and / or neodymium which are very similar in chemical behavior.
  • To bind off all sulfur safely enough rare earth atoms must be present. If the formation of e.g. This is the case when more cerium atoms than sulfur atoms are present in the alloy.
  • cerium content in mass% must be at least a factor of 4.4 greater than the sulfur content in mass% in order to achieve complete binding of the sulfur by cerium.
  • the relay materials may only have a very low content of non-metallic inclusions according to DIN 50602 (method M). For this reason, the maximum size values of the sulfidic inclusions in line form SS smaller than 0.1 or 1.1, and the maximum size values of oxidized inclusions in dissolved form OA (aluminum oxides) must also be used for deoxidation with cerium or a mischmetal from the rare earths cerium, lanthanum, praseodymium, neodymium.format2.2 , aluminum oxides
  • compositions of the invention limits charge T2536 T5477 T5488 T4392 T4505 T5406 E5407 E0545 Ni 47.45 47.5 47.85 47.7 47.45 47.9 47.65 47.65 Mn 12:40 0.40 0.36 12:38 12:40 12:38 12:39 0.41 Max. 0.5 Si 12:19 0.19 0.22 0.20 0.14 12:15 0.14 12:22 Max. 0.3 al 0.005 0.005 0,007 0.009 0,007 0008 0.005 0.005 Max. 0,010 mg 0.001 0.0003 0.0008 0.0001 0.0001 0.0002 0.0006 0.0008 Max.
  • batch T0626 with a rare earths residual content of 0.054%, cracks formed in the hot forming and the billet was scrap. Such a high content of rare earth leads to a poorer thermoforming behavior.
  • batch T0624 could be rolled both on block and on hot strip with a thickness of about 4 mm. Since the rare earths behave chemically similar, according to the invention, the content of the sum of the rare earth cerium, lanthanum, praseodymium, neodymium to limit a maximum of 0.05% by mass to avoid hot forming problems.
  • Table 8 shows the investigation of the content of non-metallic inclusions according to DIN 50602 on different batches according to the prior art (T) and the charges (E) according to the invention.
  • the batch T2536 has a maximum size value of 2.7 for the oxide inclusions in line form (method M). This value is too high for the use of this batch as a material for relay parts. It causes wear on the contact surfaces of the relay and results in the loss of functionality of the relay.
  • the content of non-metallic inclusions is therefore limited according to the invention as follows:
  • the maximum size values according to DIN 50602 of the sulfide inclusions in line form SS are less than or equal to 0.1 and 1.1, the maximum size values according to DIN 50602 of the oxide inclusions in dissolved form OA (aluminum oxides) less than or equal to 2.2, 3.2 and 4.2 respectively, the maximum size values according to DIN 50602 of 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 oxide inclusions In globular form OG less than or equal to 8.2 or 9.2. All other batches listed in Table 8 meet the requirements for 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)
  • Powder Metallurgy (AREA)
  • Conductive Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
EP99906109A 1998-01-30 1999-01-08 Weichmagnetische nickel-eisen-legierung mit kleiner koerzitivfeldstärke, hoher permeabilität und verbesserter korrosionsbeständigkeit Expired - Lifetime EP1051714B2 (de)

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 (de) 1998-01-30 1999-01-08 Weichmagnetische nickel-eisen-legierung mit kleiner koerzitivfeldstärke, hoher permeabilität und verbesserter korrosionsbeständigkeit

Publications (3)

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

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EP99906109A Expired - Lifetime EP1051714B2 (de) 1998-01-30 1999-01-08 Weichmagnetische nickel-eisen-legierung mit kleiner koerzitivfeldstärke, hoher permeabilität und verbesserter korrosionsbeständigkeit

Country Status (15)

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

Cited By (1)

* Cited by examiner, † Cited by third party
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DE102018127918A1 (de) 2018-11-08 2020-05-14 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen eines Teils aus einer weichmagnetischen Legierung

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DE10143397A1 (de) * 2001-09-04 2003-03-27 Pierburg Gmbh Vorrichtung zur Drehwinkelerfassung und Vorrichtung zur Magnetfelderfassung
DE102009010244A1 (de) * 2009-02-17 2010-08-19 Linde Material Handling Gmbh Steuerungsvorrichtung für eine mobile Arbeitsmaschine, insbesondere ein Flurförderzeug
DE102009012794B3 (de) 2009-03-13 2010-11-11 Vacuumschmelze Gmbh & Co. Kg Hysteresearmer Sensor
CN102314984B (zh) * 2011-05-19 2012-11-28 浙江科达磁电有限公司 磁导率μ=26的铁镍钼合金软磁材料及其制造方法
CN102306526B (zh) * 2011-05-19 2012-11-28 浙江科达磁电有限公司 一种铁镍钼合金软磁材料及其制造方法
CN102314981B (zh) * 2011-05-19 2012-11-28 浙江科达磁电有限公司 磁导率μ=125的铁镍钼合金软磁材料及其制造方法
CN102314980B (zh) * 2011-05-19 2012-11-28 浙江科达磁电有限公司 磁导率μ=60的铁镍钼合金软磁材料及其制造方法
CN102306527B (zh) * 2011-05-23 2012-11-28 浙江科达磁电有限公司 磁导率μ=75的铁镍合金软磁材料及其制造方法
CN102306528B (zh) * 2011-05-23 2012-11-28 浙江科达磁电有限公司 磁导率μ=125的铁镍合金软磁材料及其制造方法
CN102306529B (zh) * 2011-05-23 2012-11-28 浙江科达磁电有限公司 磁导率μ=26的铁镍合金软磁材料及其制造方法
CN102306530B (zh) * 2011-05-23 2012-11-28 浙江科达磁电有限公司 磁导率μ=60的铁镍合金软磁材料及其制造方法
CN102723158B (zh) * 2012-07-06 2015-12-02 白皞 含稀土的高磁导率Ni-Fe软磁合金及其制备方法和用途
JP6143539B2 (ja) * 2013-05-08 2017-06-07 日本冶金工業株式会社 熱間加工性および交流磁気特性に優れるＮｉ−Ｆｅ系パーマロイ合金とその製造方法
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
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
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CN112176222B (zh) * 2020-10-30 2021-12-17 东北大学 一种含Ce的Fe-Ni坡莫合金材料及其制备方法
CN116162868B (zh) * 2023-01-17 2024-06-14 北京北冶功能材料有限公司 一种中镍软磁合金及其制备方法
CN116377284B (zh) * 2023-03-08 2024-06-14 北京北冶功能材料有限公司 一种铁镍基软磁合金箔材及其制备方法和应用

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DE102018127918A1 (de) 2018-11-08 2020-05-14 Vacuumschmelze Gmbh & Co. Kg Verfahren zum Herstellen eines Teils aus einer weichmagnetischen Legierung

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CZ20002616A3 (cs) 2000-11-15
PL341568A1 (en) 2001-04-23
HUP0003646A2 (hu) 2001-02-28
ES2169597T3 (es) 2002-07-01
KR20010040436A (ko) 2001-05-15
EP1051714B1 (de) 2001-12-19
ATE211297T1 (de) 2002-01-15
SK285293B6 (sk) 2006-10-05
DE19803598C1 (de) 1999-04-29
PT1051714E (pt) 2002-06-28
JP2002502118A (ja) 2002-01-22
CN1163915C (zh) 2004-08-25
CN1275238A (zh) 2000-11-29
JP2007314885A (ja) 2007-12-06
ES2169597T5 (es) 2008-11-01
WO1999039358A1 (de) 1999-08-05
PL192145B1 (pl) 2006-09-29
DE59900588D1 (de) 2002-01-31
HUP0003646A3 (en) 2001-04-28
CZ301345B6 (cs) 2010-01-20
HU222469B1 (hu) 2003-07-28
KR100384768B1 (ko) 2003-06-18
SK10832000A3 (sk) 2001-03-12
TW418406B (en) 2001-01-11
TR200002190T2 (tr) 2000-11-21
EP1051714A1 (de) 2000-11-15

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