EP1041168A1 - Alliage magnetique doux pour horlogerie - Google Patents
Alliage magnetique doux pour horlogerie Download PDFInfo
- Publication number
- EP1041168A1 EP1041168A1 EP00400646A EP00400646A EP1041168A1 EP 1041168 A1 EP1041168 A1 EP 1041168A1 EP 00400646 A EP00400646 A EP 00400646A EP 00400646 A EP00400646 A EP 00400646A EP 1041168 A1 EP1041168 A1 EP 1041168A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- nickel
- soft magnetic
- magnetic
- max
- 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
- 229910001004 magnetic alloy Inorganic materials 0.000 title claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 21
- 239000000956 alloy Substances 0.000 claims description 21
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 229910052749 magnesium Inorganic materials 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 abstract description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 15
- 239000011651 chromium Substances 0.000 abstract description 14
- 229910052804 chromium Inorganic materials 0.000 abstract description 12
- 229910017052 cobalt Inorganic materials 0.000 abstract description 8
- 239000010941 cobalt Substances 0.000 abstract description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 2
- 230000035699 permeability Effects 0.000 description 21
- 239000011575 calcium Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000011777 magnesium Substances 0.000 description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 8
- 230000006698 induction Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910020632 Co Mn Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241001080024 Telles Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 238000009617 vacuum fusion Methods 0.000 description 1
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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- 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
Definitions
- the invention relates to an economical soft magnetic alloy having good temperature stability of the magnetic permeability and good resistance to oxidation in a humid atmosphere.
- This alloy can be used, in particular, for the manufacture of the stator of a micro electric stepper motor for watchmaking.
- Electric micro motors for watchmaking include a stator generally made of soft magnetic alloy containing about 80% of nickel, a few% molybdenum or copper, the rest being iron. Such alloy has a maximum magnetic permeability of 200,000 to 300,000 on the entire operating temperature range (- 20 ° C, + 60 ° C), therefore, the micro motors thus produced have a very low energy consumption.
- 80% nickel alloys are expensive and oxidize easily in humid atmospheres, which has several drawbacks: use is delicate in certain hot and humid regions; they are bad suitable for the manufacture of watches whose mechanism is visible; they are too much expensive for making cheap watches.
- a soft magnetic alloy which has a saturation induction Bs greater than or equal to 5000 Gauss (0.5 tesla), a maximum relative permeability in direct current ⁇ cc, max greater than 70000, a resistivity ⁇ sufficient for ⁇ cc, max ⁇ ⁇ > 0.05 ⁇ .m, a sufficient stability of the magnetic permeability ⁇ cc, max between - 20 ° C and + 60 ° C, improved resistance to oxidation, and a relatively low nickel content.
- the magnetic permeability to have sufficient stability, it is desirable that its variation in relative value, with respect to its value at 20 ° C., remain less than 30% over the temperature range considered.
- the object of the present invention is to provide an alloy which meets these requirements.
- the subject of the invention is a soft magnetic alloy whose chemical composition includes, in% by weight: 34% ⁇ Ni ⁇ 40% 7% ⁇ Cr ⁇ 10% 0.5% ⁇ Co ⁇ 3% 0.1% ⁇ Mn ⁇ 1% the remainder being iron and impurities resulting from processing.
- the impurities that are O, S, N are such that: O ⁇ 0.007% S ⁇ 0.002% N ⁇ 0.004% and: N + S + O ⁇ 0.01%
- the impurities Si, Al, Ca, Mg prefferably be such that: If ⁇ 0.3% Al ⁇ 0.05% Ca ⁇ 0.03% Mg ⁇ 0.03% and : Si + Al + Ca + Mg + Mn ⁇ 1%
- This alloy can be used for the manufacture of a magnetic yoke, and in particular, to manufacture the stator of a micro electric stepper motor for watchmaking.
- the impurities are, in particular, oxygen, sulfur, nitrogen, silicon, aluminum, calcium and magnesium.
- the alloy thus defined which is of the Fe-Ni-Cr-Co type, can be rolled to hot, then cold, and possibly annealed under hydrogen at a temperature greater than or equal to 900 ° C for more than an hour, and preferably between 1100 ° C and 1200 ° C for 1 to 4 hours.
- High annealing temperature under hydrogen has the advantage of eliminating, at least partially, certain precipitates of sulphides or nitrides which have an unfavorable effect on the magnetic properties.
- This alloy has a saturation induction Bs greater than 5000 Gauss, at 70 ° C, a maximum relative magnetic permeability in direct current ⁇ cc, max greater than 70,000 at 20 ° C, an electrical resistivity p greater than 70 ⁇ .cm at 20 ° C, and a temperature stability of the maximum relative magnetic permeability defined for a temperature T, by: ⁇ cc, max (T) / ⁇ cc, max (20 ° C) ⁇ 30%
- ⁇ cc, max (T) represents the variation of ⁇ cc, max between 20 ° C and T
- ⁇ cc, max (20 ° C) represents the permeability in direct current at 20 ° C.
- the alloy has a good resistance to oxidation in a humid atmosphere.
- washers with an inside diameter of 20 mm and an outside diameter of 30 mm were produced, cut from cold-rolled strips 0.6 mm thick in alloys according to the invention and in alloys given as for comparison, produced by vacuum fusion of pure raw materials.
- the washers were annealed under hydrogen at 1170 ° C for 4 hours.
- samples 1 to 7 on the one hand and 8 to 17 on the other hand shows that an addition of 0.5% to 3% of cobalt combined with a content nickel between 34% and 40% and a chromium content between 7% and 10%, very significantly improves the temperature stability ⁇ / ⁇ of the magnetic permeability in direct current.
- samples 8 to 10 which have nickel and chromium contents in accordance with the invention, but which contain practically no cobalt, always have a value of ⁇ / ⁇ greater than 30, while for samples 1 to 7, ⁇ / ⁇ is always less than 30.
- samples 11 to 17, which contain cobalt, but of which the chromium contents are outside the limits of the invention have values ⁇ / ⁇ greater than 30.
- samples 1 to 4 (in accordance with the invention) whose oxygen contents are less than 0.007% and whose sums of nitrogen, oxygen and sulfur contents are less than 0.01%, have an induction at saturation Bs greater than 5000 Gauss, and a maximum relative magnetic permeability in direct current ⁇ cc, max greater than 70000 at 20 ° C, whereas samples 5 to 7 which do not satisfy the conditions of oxygen content or of sum N + O + S, have either a saturation induction of less than 5000 Gauss, or a magnetic permeability in direct current of less than 70,000 at 20 ° C.
- the resistivity is greater than 90 ⁇ .cm; the product ⁇ cc, max ⁇ ⁇ is greater than 0.05 ⁇ .m.
- micro stators can be manufactured stepper motors for watchmaking, both economical, having good resistance to oxidation by a humid atmosphere, and having good performances.
- the magnetic reluctance of the circuit remains low, which allows the use of a coil not too big.
- this alloy is significantly more economical than alloys with 80% nickel.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Dispersion Chemistry (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Soft Magnetic Materials (AREA)
- Electromechanical Clocks (AREA)
- Materials For Medical Uses (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
34 % ≤ Ni ≤ 40 %
7 % ≤ Cr ≤ 10 %
0,5 % ≤ Co ≤ 3%
0,1 % ≤ Mn ≤ 1 %
le reste étant du fer et des impuretés résultant de l'élaboration.
O ≤ 0,007 %
S ≤ 0,002 %
N ≤ 0,004%
et :
N + S + O < 0,01%
Si ≤ 0,3 %
Al ≤ 0,05 %
Ca ≤0,03 %
Mg ≤ 0,03 %
et, que :
Si + Al + Ca + Mg + Mn ≤ 1%
- plus de 34 % de nickel pour obtenir une induction à saturation et perméabilité magnétique suffisantes. Mais, pour obtenir un alliage économique, et compte tenu notamment d'une addition de chrome, la teneur en nickel doit rester inférieure à 40 %.
- de 7 % à 10 % de chrome pour améliorer la résistance à l'oxydation et augmenter la perméabilité magnétique à basse température ; lorsque la teneur en nickel est comprise entre 34 % et 40 %, une telle teneur en chrome améliore sensiblement la perméabilité magnétique entre - 40 °C et 0 °C.
- de 0,5 % à 3 % de cobalt pour obtenir une stabilité en température suffisante de la perméabilité magnétique. En effet, les inventeurs ont constaté de façon inattendue que, pour des teneurs en nickel comprises entre 34 % et 40 % et des teneurs en chrome comprises entre 7 % et 10 %, une addition modérée de cobalt améliorait sensiblement la stabilité en température de la perméabilité magnétique, entre - 20 °C et + 60 °C.
- de 0,1 % à 1 % de manganèse, et de préférence plus de 0,2 %, pour désoxyder l'alliage et fixer le soufre.
- le reste de la composition est constitué de fer et d'impuretés résultant de l'élaboration.
- la teneur en oxygène reste inférieure ou égale à 0,007 %, la teneur en azote reste inférieure ou égale à 0,004 %, la teneur en soufre reste inférieure ou égale à 0,002 %, et la somme O + N + S des teneurs en oxygène, azote et soufre, reste inférieure ou égale à 0,01 % ;
- les teneurs résiduelles en éléments désoxydants tels que Si, Al, Ca, Mg restent inférieures ou égales à 0,3 % pour le silicium, 0,05 % pour l'aluminium, et 0,03 % pour le calcium ou pour le magnésium ; le calcium et le magnésium ont l'avantage de permettre la formation de petits oxydes qui rendent l'alliage plus facilement découpable.
| rep | Ni | Cr | Co | Mn | C | Si | P | N | O | S | N+O+S |
| 1 | 35,79 | 8,92 | 3,03 | 0,29 | 0,009 | 0,03 | 0,002 | 0,001 | 0,0069 | 0,0005 | 0,0084 |
| 2 | 37,45 | 8,72 | 3,06 | 0,3 | 0,0089 | 0,03 | 0,002 | 0,0012 | 0,0068 | 0,0005 | 0,0085 |
| 3 | 37,75 | 9,54 | 1,02 | 0,3 | 0,0091 | 0,03 | 0,002 | 0,0007 | 0,0062 | 0,0005 | 0,0074 |
| 4 | 39,49 | 9,6 | 1,02 | 0,287 | 0,0096 | 0,021 | 0,003 | 0,0029 | 0,0029 | 0,001 | 0,0068 |
| 5 | 35,8 | 9,05 | 1,04 | 0,3 | 0,0083 | 0,03 | 0,002 | 0,0005 | 0,009 | 0,0005 | 0,0100 |
| 6 | 37,63 | 9,31 | 0,5 | 0,293 | 0,0086 | 0,01 | 0,003 | 0,0027 | 0,009 | 0,0008 | 0,0125 |
| 7 | 37,95 | 9,56 | 1,42 | 0,289 | 0,0083 | 0,017 | 0,003 | 0,003 | 0,0084 | 0,0009 | 0,0123 |
| 8 | 36,54 | 9,03 | 0,096 | 0,306 | 0,006 | 0,164 | 0,007 | 0,0027 | 0,008 | 0,0014 | 0,0121 |
| 9 | 36,97 | 9,02 | 0,04 | 0,293 | 0,0046 | 0,15 | 0,0057 | 0,0027 | 0,010 | 0,002 | 0,0147 |
| 10 | 37,82 | 8,95 | 0,002 | 0,48 | 0,005 | 0,013 | 0,004 | 0,0042 | 0,0066 | 0,0042 | 0,0150 |
| 11 | 35,85 | 5,89 | 2,85 | 0,308 | 0,0083 | 0,031 | 0,0034 | 0,0006 | 0,0052 | 0,0005 | 0,0063 |
| 12 | 37,69 | 3,14 | 1,06 | 0,296 | 0,009 | 0,031 | 0,0035 | 0,0005 | 0,0057 | 0,0005 | 0,0067 |
| 13 | 37,74 | 5,76 | 0,97 | 0,308 | 0,0092 | 0,033 | 0,0038 | 0,0008 | 0,0058 | 0,0005 | 0,0071 |
| 14 | 35,77 | 5,6 | 1,01 | 0,306 | 0,0094 | 0,035 | 0,004 | 0,0008 | 0,0075 | 0,0005 | 0,0088 |
| 15 | 37,77 | 5,8 | 2,87 | 0,287 | 0,0069 | 0,033 | 0,0037 | 0,0009 | 0,0083 | 0,0005 | 0,0097 |
| 16 | 33,96 | 2,64 | 1,96 | 0,259 | 0,0089 | 0,032 | 0,0035 | 0,0051 | 0,0085 | 0,0005 | 0,0141 |
| 17 | 37,86 | 10,55 | 0,96 | 0,299 | 0,0049 | 0,019 | 0,003 | 0,0027 | 0,014 | 0,001 | 0,0177 |
| rep | Bs (G) | Hc (Oe) | ρ (µΩ.cm) | µcc,max | Δµ/µ (%) |
| 1 | 5800 | 27,4 | 92 | 92700 | 26 |
| 2 | 6800 | 24,5 | 94,4 | 87500 | 16 |
| 3 | 6000 | 21,9 | 93,2 | 95400 | 9 |
| 4 | 6500 | 20,6 | 98,5 | 72000 | 2 |
| 5 | 4800 | 23,9 | 91,1 | 70000 | 16 |
| 6 | 5500 | 22 | 92,9 | 67000 | 4 |
| 7 | 5800 | 25,7 | 93,5 | 67000 | 12 |
| 8 | 4300 | 23,3 | 95 | 78400 | 55 |
| 9 | 4700 | 22 | 96 | 67000 | 37 |
| 10 | 5400 | 15,5 | 95 | 76500 | 48 |
| 11 | 8400 | 45,4 | 90,9 | 53200 | 53 |
| 12 | 11000 | 54,3 | 82,6 | 54200 | 33 |
| 13 | 8700 | 33,9 | 90,2 | 83600 | 54 |
| 14 | 7600 | 44,5 | 90,5 | 49700 | 65 |
| 15 | 9400 | 44,2 | 90,9 | 57900 | 61 |
| 16 | 9200 | 85 | 83,5 | 20200 | 60 |
| 17 | 4700 | 21,9 | 96,2 | 62000 | 57 |
Claims (4)
- Alliage magnétique doux du type fer-nickel caractérisé en ce que sa composition chimique comprends, en % en poids :
34 % ≤ Ni ≤ 40 %
7 % ≤ Cr ≤ 10 %
0,5 % ≤ Co ≤ 3%
0,1 % ≤ Mn ≤ 1 %
O ≤ 0,007 %
S ≤ 0,002 %
N ≤ 0,004%
avec N + S + O ≤ 0,01%
le reste étant du fer et des impuretés résultant de l'élaboration. - Alliage selon la revendication 1 caractérisé en ce que les impuretés que sont Si, Al, Ca, Mg sont telles que :
Si ≤ 0,3 %
Al ≤ 0,05 %
Ca < 0,03 %
Mg ≤ 0,03 %
et,
Si + Al + Ca + Mg + Mn ≤ 1% - Utilisation d'un alliage selon l'une quelconque des revendications 1 à 2 pour la fabrication d'une culasse magnétique.
- Utilisation selon la revendication 3 caractérisée en ce que la culasse magnétique constitue le stator d'un micro moteur électrique pas à pas pour horlogerie.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9904302A FR2791704B1 (fr) | 1999-04-02 | 1999-04-02 | Alliage magnetique doux pour horlogerie |
| FR9904302 | 1999-04-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1041168A1 true EP1041168A1 (fr) | 2000-10-04 |
| EP1041168B1 EP1041168B1 (fr) | 2004-04-28 |
Family
ID=9544094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00400646A Expired - Lifetime EP1041168B1 (fr) | 1999-04-02 | 2000-03-09 | Alliage magnetique doux pour horlogerie |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6350324B1 (fr) |
| EP (1) | EP1041168B1 (fr) |
| JP (1) | JP2000319766A (fr) |
| CN (1) | CN1192400C (fr) |
| AT (1) | ATE265554T1 (fr) |
| CA (1) | CA2302845A1 (fr) |
| DE (1) | DE60010167T2 (fr) |
| FR (1) | FR2791704B1 (fr) |
| MX (1) | MXPA00003157A (fr) |
| TW (1) | TWI228150B (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003069638A1 (fr) * | 2002-02-15 | 2003-08-21 | Imphy Ugine Precision | Alliage magnetique doux pour horlogerie |
| WO2003069637A1 (fr) * | 2002-02-15 | 2003-08-21 | Imphy Alloys | Blindage magnetique basse frequence en alliage magnetique doux |
| US8405391B2 (en) | 2009-03-13 | 2013-03-26 | Vacuumschmelze Gmbh & Co. Kg | Low hysteresis sensor |
| CN104593670A (zh) * | 2015-01-17 | 2015-05-06 | 陈红 | 一种铁镍基软磁材料的制备方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2816959B1 (fr) | 2000-11-17 | 2003-08-01 | Imphy Ugine Precision | Procede pour fabriquer une bande ou une piece decoupee dans une bande en acier maraging laminee a froid |
| DE102011001488B4 (de) * | 2010-09-10 | 2014-07-10 | Vacuumschmelze Gmbh & Co. Kg | Verwendung einer weichmagnetischen Legierung in einem Rotor oder Stator eines Elektromotors |
| CN102195368A (zh) * | 2011-03-07 | 2011-09-21 | 鄂州市栋鑫冶金机械设备有限公司 | 一种铸造铝合金无磁压圈 |
| CN104160595A (zh) | 2012-01-26 | 2014-11-19 | 大陆汽车有限公司 | 用于旋转的电机器的转子和旋转的电机器 |
| DE202012000842U1 (de) | 2012-01-26 | 2012-02-03 | Continental Automotive Gmbh | Rotor für eine rotierende elektrische Maschine und Elektromotor |
| WO2013110656A1 (fr) | 2012-01-26 | 2013-08-01 | Continental Automotive Gmbh | Rotor pour machine électrique tournante |
| DE202012003643U1 (de) * | 2012-04-10 | 2012-04-23 | Continental Automotive Gmbh | Rotor für eine rotierende elektrische Maschine und rotierende elektrische Maschine |
| CN102732800B (zh) * | 2012-06-10 | 2015-10-28 | 电子科技大学 | 一种Fe-Ni-Cr软磁性合金及制备方法 |
| JP6993079B2 (ja) * | 2015-10-20 | 2022-01-20 | セイコーインスツル株式会社 | ステッピングモータの製造方法 |
Citations (5)
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|---|---|---|---|---|
| GB504864A (en) * | 1937-06-01 | 1939-05-02 | Fabriques De Spiraux Reunies S | Process for the manufacture of compensating spiral springs for watches, chronometersand the like |
| GB553180A (en) * | 1940-11-04 | 1943-05-11 | Wilson H A Co | Improvements in temperature responsive bimetal |
| US4131494A (en) * | 1976-03-08 | 1978-12-26 | Tokyo Shibaura Electric Co., Ltd. | Corrosion resistant magnetic alloy |
| EP0827256A1 (fr) * | 1996-08-29 | 1998-03-04 | Imphy S.A. | Moteur pas à pas pour horlogerie dont le stator est constitué d'un alliage magnétique doux et alliage magnétique doux |
| EP0889488A1 (fr) * | 1997-07-04 | 1999-01-07 | Imphy S.A. | Alliage magnétique doux du type FE-NI-CR-TI pour circuit magnétique d'un relais à haute sensibilité |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB504854A (en) | 1937-02-11 | 1939-05-02 | Glanzstoff Ag | A process for producing improving products for pelts, furs, hairs, and textiles of all kinds |
| JPS5631345B2 (fr) * | 1972-01-27 | 1981-07-21 | ||
| US3925065A (en) * | 1973-06-22 | 1975-12-09 | Honda Motor Co Ltd | Valve seat materials for internal combustion engines |
| JPS5741353A (en) * | 1980-08-26 | 1982-03-08 | Hitachi Metals Ltd | Magnetic alloy |
| FR2745298B1 (fr) * | 1996-02-27 | 1998-04-24 | Imphy Sa | Alliage fer-nickel et bande laminee a froid a texture cubique |
-
1999
- 1999-04-02 FR FR9904302A patent/FR2791704B1/fr not_active Expired - Fee Related
-
2000
- 2000-03-09 EP EP00400646A patent/EP1041168B1/fr not_active Expired - Lifetime
- 2000-03-09 AT AT00400646T patent/ATE265554T1/de not_active IP Right Cessation
- 2000-03-09 DE DE60010167T patent/DE60010167T2/de not_active Expired - Fee Related
- 2000-03-24 TW TW089105436A patent/TWI228150B/zh not_active IP Right Cessation
- 2000-03-27 US US09/535,740 patent/US6350324B1/en not_active Expired - Fee Related
- 2000-03-27 CA CA002302845A patent/CA2302845A1/fr not_active Abandoned
- 2000-03-30 MX MXPA00003157A patent/MXPA00003157A/es not_active Application Discontinuation
- 2000-03-31 CN CNB001053183A patent/CN1192400C/zh not_active Expired - Fee Related
- 2000-04-03 JP JP2000100777A patent/JP2000319766A/ja not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB504864A (en) * | 1937-06-01 | 1939-05-02 | Fabriques De Spiraux Reunies S | Process for the manufacture of compensating spiral springs for watches, chronometersand the like |
| GB553180A (en) * | 1940-11-04 | 1943-05-11 | Wilson H A Co | Improvements in temperature responsive bimetal |
| US4131494A (en) * | 1976-03-08 | 1978-12-26 | Tokyo Shibaura Electric Co., Ltd. | Corrosion resistant magnetic alloy |
| EP0827256A1 (fr) * | 1996-08-29 | 1998-03-04 | Imphy S.A. | Moteur pas à pas pour horlogerie dont le stator est constitué d'un alliage magnétique doux et alliage magnétique doux |
| EP0889488A1 (fr) * | 1997-07-04 | 1999-01-07 | Imphy S.A. | Alliage magnétique doux du type FE-NI-CR-TI pour circuit magnétique d'un relais à haute sensibilité |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003069638A1 (fr) * | 2002-02-15 | 2003-08-21 | Imphy Ugine Precision | Alliage magnetique doux pour horlogerie |
| WO2003069637A1 (fr) * | 2002-02-15 | 2003-08-21 | Imphy Alloys | Blindage magnetique basse frequence en alliage magnetique doux |
| FR2836155A1 (fr) * | 2002-02-15 | 2003-08-22 | Imphy Ugine Precision | Alliage magnetique doux pour horlogerie |
| FR2836156A1 (fr) * | 2002-02-15 | 2003-08-22 | Imphy Ugine Precision | Alliage magnetique doux pour blindage magnetique |
| US7195680B2 (en) | 2002-02-15 | 2007-03-27 | Imphy Alloys | Soft magnetic alloy for clock-making |
| US8405391B2 (en) | 2009-03-13 | 2013-03-26 | Vacuumschmelze Gmbh & Co. Kg | Low hysteresis sensor |
| CN104593670A (zh) * | 2015-01-17 | 2015-05-06 | 陈红 | 一种铁镍基软磁材料的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2791704B1 (fr) | 2001-05-25 |
| DE60010167D1 (de) | 2004-06-03 |
| HK1030294A1 (en) | 2001-04-27 |
| JP2000319766A (ja) | 2000-11-21 |
| FR2791704A1 (fr) | 2000-10-06 |
| DE60010167T2 (de) | 2005-08-04 |
| CN1192400C (zh) | 2005-03-09 |
| EP1041168B1 (fr) | 2004-04-28 |
| ATE265554T1 (de) | 2004-05-15 |
| MXPA00003157A (es) | 2002-03-08 |
| CA2302845A1 (fr) | 2000-10-02 |
| TWI228150B (en) | 2005-02-21 |
| CN1269588A (zh) | 2000-10-11 |
| US6350324B1 (en) | 2002-02-26 |
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