EP0818551A1 - Utilisation d'une alliage de fer-nickel pour équipement électromagnétiques - Google Patents
Utilisation d'une alliage de fer-nickel pour équipement électromagnétiques Download PDFInfo
- Publication number
- EP0818551A1 EP0818551A1 EP97109559A EP97109559A EP0818551A1 EP 0818551 A1 EP0818551 A1 EP 0818551A1 EP 97109559 A EP97109559 A EP 97109559A EP 97109559 A EP97109559 A EP 97109559A EP 0818551 A1 EP0818551 A1 EP 0818551A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nickel
- iron
- max
- alloy
- alloys
- 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- Withdrawn
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
Definitions
- the invention relates to the use of an iron-nickel alloy for highly permeable soft magnetic components with a coercive field strength Hc of max. 12 A / m at one Saturation flux density greater than 1.35 T and one mechanical hardness HV10> 125, especially for yokes and Armature of electromagnetic relays with a hardness HV10> 140.
- the standard DIN 17745 "Wrought alloys made of nickel and iron" names the alloy Ni 48 (material numbers 1.3926 and 1.3927) with approx. 50 mass% Ni.
- the varieties RNi 12 and RNi 8 have a saturation flux density Bs of about 1.5 T.
- Table 1 on one side of the variety RNi 24, that alloys with about 36% by mass Nickel, and on the other hand the types RNi 5 and RNi 2, which correspond to alloys with about 80% by mass of nickel and with contents of the elements copper, chromium and molybdenum.
- the alloys with average nickel contents around 50% by mass differ from the alloys with low nickel contents around 36% by mass as well of the alloys with high nickel contents around 80% by mass, in particular due to a higher magnetic Induction at a field strength of 4000 A / m, which is the Saturation induction corresponds.
- Alloys with medium Nickel contents between about 45 and 50 mass% show that highest achievable in the two-substance system iron-nickel Saturation induction.
- the object of the invention is now an iron-nickel alloy for soft magnetic components, which contributes to the required low coercive force sufficient saturation induction and the highest possible Permeability, preferably for use as a core and Yoke material for electromagnetic relays owns and furthermore mechanical hardness values of HV10> 125 reached.
- a significant increase in strength can be achieved by Precipitation hardening can be achieved.
- nickel or Iron-based alloys this is due to the elements Ti, Al and Nb possible. These elements are in in these systems limited solubility, so that from a supersaturated Mixed crystal fine by suitable annealing treatment distributed excretions are generated in the matrix can.
- the due to this temperature dependent Excretions produced by solubility complicate the Movement of transfers.
- the strongest disability of the Movement of dislocations in a matrix with fine Distributed excretions exist if these a diameter of approx. Have 20 - 50 nm. The corresponds in alloys with approx.
- alloys with approximately 50% Ni a significant increase in mechanical To achieve hardness values without being too strong Loss of permeability is coming.
- the iron-nickel alloy to be used according to the invention achieves the standard values of the magnetic properties of the well-known relay material types RNi 12 and RNi 8.
- the magnetic properties are sufficient to this alloy as core and yoke material for apply electromagnetic relays. So the Iron-nickel alloy e.g. after a four hour Heat treatment at 1080 ° C with furnace cooling down to 450 ° C and subsequent cooling in air a maximum permeability of about 35,000. The coercive force Hc at around 11 A / m it is even lower than that in the standard DIN 17405 required for the RNi 12 grade maximum limit of 12 A / m. These values are average static magnetization measurements have been determined on rings made of 1.0 mm and 1.5 mm thick were carried out.
- An Fe-Ni alloy E to be used according to the invention the composition according to Table 2 was in a 30 t Arc furnace melted and after a block and Hot strip rolling to strips of test thicknesses 1.0 mm and 1.5 mm cold rolled.
- alloy E The magnetic properties of alloy E are listed in Table 3 in comparison to the values of the known materials RNi 8, RNi 12 and RNi 24.
- the higher mechanical hardness in the annealed condition increases the wear resistance of the surfaces of the components made from this material E.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996128138 DE19628138C1 (de) | 1996-07-12 | 1996-07-12 | Verwendung einer Eisen-Nickel-Legierung für weichmagnetische Bauteile |
DE19628138 | 1996-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0818551A1 true EP0818551A1 (fr) | 1998-01-14 |
Family
ID=7799655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97109559A Withdrawn EP0818551A1 (fr) | 1996-07-12 | 1997-06-12 | Utilisation d'une alliage de fer-nickel pour équipement électromagnétiques |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0818551A1 (fr) |
DE (1) | DE19628138C1 (fr) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3012673A1 (de) * | 1979-04-02 | 1980-10-16 | Univ California | Austenitische eisen-nickel-legierung |
JPS6240363A (ja) * | 1985-08-13 | 1987-02-21 | Sumitomo Special Metals Co Ltd | 雰囲気変動に対する薄膜磁気特性の安定度の高いタ−ゲツト材 |
JPH02225621A (ja) * | 1989-02-27 | 1990-09-07 | Daido Steel Co Ltd | 高透磁率磁性材料の製造方法 |
EP0489932A1 (fr) * | 1990-06-29 | 1992-06-17 | Kabushiki Kaisha Toshiba | Alliage de fer et de nickel |
EP0694624A1 (fr) * | 1994-06-30 | 1996-01-31 | Krupp VDM GmbH | Alliage Fer-nickel possédant de bonnes caractéristiques magnétiques douces |
EP0740313A1 (fr) * | 1995-04-26 | 1996-10-30 | Vacuumschmelze Gmbh | Utilisation d'un alliage nickel-fer magnétiquement doux à grande induction de saturation et dureté Vickers pour des composants de relais |
-
1996
- 1996-07-12 DE DE1996128138 patent/DE19628138C1/de not_active Revoked
-
1997
- 1997-06-12 EP EP97109559A patent/EP0818551A1/fr not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3012673A1 (de) * | 1979-04-02 | 1980-10-16 | Univ California | Austenitische eisen-nickel-legierung |
JPS6240363A (ja) * | 1985-08-13 | 1987-02-21 | Sumitomo Special Metals Co Ltd | 雰囲気変動に対する薄膜磁気特性の安定度の高いタ−ゲツト材 |
JPH02225621A (ja) * | 1989-02-27 | 1990-09-07 | Daido Steel Co Ltd | 高透磁率磁性材料の製造方法 |
EP0489932A1 (fr) * | 1990-06-29 | 1992-06-17 | Kabushiki Kaisha Toshiba | Alliage de fer et de nickel |
EP0694624A1 (fr) * | 1994-06-30 | 1996-01-31 | Krupp VDM GmbH | Alliage Fer-nickel possédant de bonnes caractéristiques magnétiques douces |
EP0740313A1 (fr) * | 1995-04-26 | 1996-10-30 | Vacuumschmelze Gmbh | Utilisation d'un alliage nickel-fer magnétiquement doux à grande induction de saturation et dureté Vickers pour des composants de relais |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 011, no. 229 (C - 436) 25 July 1987 (1987-07-25) * |
PATENT ABSTRACTS OF JAPAN vol. 014, no. 539 (C - 0782) 28 November 1990 (1990-11-28) * |
Also Published As
Publication number | Publication date |
---|---|
DE19628138C1 (de) | 1997-05-22 |
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Effective date: 19980715 |