EP3014362A2 - Ressort d'horlogerie en acier inoxydable austenitique - Google Patents
Ressort d'horlogerie en acier inoxydable austenitiqueInfo
- Publication number
- EP3014362A2 EP3014362A2 EP14711981.2A EP14711981A EP3014362A2 EP 3014362 A2 EP3014362 A2 EP 3014362A2 EP 14711981 A EP14711981 A EP 14711981A EP 3014362 A2 EP3014362 A2 EP 3014362A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- nitrogen
- total
- carbon
- curvature
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B1/00—Driving mechanisms
- G04B1/10—Driving mechanisms with mainspring
- G04B1/14—Mainsprings; Bridles therefor
- G04B1/145—Composition and manufacture of the springs
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
- G04C5/005—Magnetic or electromagnetic means
Definitions
- the present invention relates to a clock spring made of a stainless steel alloy comprising a base made of iron and chromium, arranged in a cubic austenitic face-centered structure, and comprising manganese and nitrogen.
- the invention also relates to a watch cylinder having at least one such spring.
- the invention also relates to a timepiece, including a watch, incorporating at least one such watch cylinder and / or such a spring.
- the invention relates to the field of watch movements, and in particular barrel, bell, or similar motor springs, and flat springs such as jumpers, shock absorbers, or the like.
- clock springs including barrels
- Manufacturers of clock springs are always looking for materials that can improve their life expectancy, especially with improved fatigue life, and a better power reserve for battery springs, cylinder springs or springs. ringing particular.
- Some manufacturers have developed springs with different surface layers of core material, such as in WO 02/04836 in the name of Seiko, or the document CH 383 886 in the name of Sandvik, or the document CH 330 555 in the name of Fabrique Switzerland Watch Springs, or the document EP 2 511 229 in the name of GFD-Diamaze, or the document EP 1 422 436 in the name of CSEM.
- Amorphous alloys are still known from the document WO2012 / 01941 in the name of Rolex, with a high proportion of boron, or EP 2 133 756 in the name of Rolex (metallic glass), or from DE 10 201 1 001 783 in the name of from Vacuumschmelze.
- Document CH 703 796 in the name of i Ressorts discloses a nitrogenous stainless steel alloy comprising a base consisting of iron and chromium, arranged according to a cubic austenitic structure with centered faces.
- the alloy described in this document has a high concentration of nitrogen in solution (0.75 to 1% nitrogen).
- concentration of nitrogen in solution is difficult to control accurately.
- a slight increase in the nitrogen content in solution in the alloy can lead to a loss of the ductility of the alloy, which goes against the desired effect for a material to serve as a spring.
- the nitrogen content has a strong influence on the kinetics of precipitation of chromium nitrides, and, when the nitrogen content is of the order of 1%, the quenching speed of the alloy which makes it possible to avoid the appearance of nitrides is high, which makes the industrialization of the processes for treating these alloys delicate and expensive.
- the conventional range of production consists in transforming an alloy cast billet by forging, rolling, prior to the drawing by drawing or drawing of a wire rod with a diameter of about 6 mm, which is then peeled and pickled, before a series of wire drawing and cold rolling: in particular the operation of peeling and drawing operations are particularly difficult or impossible when one seeks to obtain very small springs, including spiral springs of watch-barrel with a thickness of less than 0.200 mm, or coil springs of exhaust mechanism, which may have a thickness of about 0.050 mm.
- Reduced wire drawing and rolling speeds can reduce but not eliminate these temperature rises; but these advances are then so low that the cost of the material becomes prohibitive for industrial use. Indeed, to go from a diameter of 6 mm to a diameter of the order of 0.6 mm (that is to say in a section ratio of 100 to 1), it is necessary to perform between 30 and 50 operations successive drawing (it is allowed to reduce the section of 9 to 15% each pass), and rather about 50 operations precisely to limit the heating points, not to mention that intermediate heat treatment operations are also necessary.
- Nitrogen steels are difficult to produce, their use is delicate and costly, so they have met with little enthusiasm in the field of general mechanics or precision, the only fields of application known being the Orthodontics, prostheses, and electrical engineering (retaining rings of motors or alternators), so essentially macroscopic applications or heavy machinery. The theory attributing them particular qualities thus runs up against the practice of realization.
- the problem of the manufacturer of watch springs is then to determine an alloy with suitable compositions of nitrogen and carbon to make possible the development, first of such a raw material wire type with a diameter of a few tenths of a mm then a profiled spring of substantially rectangular section and a thickness of a few hundredths of a millimeter.
- KR 2009 0092144 on behalf of Korea Mach. & Materials Inst discloses a manganese-chromium-nickel-molybdenum alloy, with the total of carbon and nitrogen mass contents of between 0.60% and 0.90%, in particular with certain alloys of the family having a carbon content of less than 0.45% and a nitrogen content of less than 0, 45%.
- JP H02 156047 in the name of Nippon Steel Corp. discloses an alloy with 5 to 25% manganese, 15 to 22% chromium, 0.10% to 0.30% carbon, and 0.3% to 0.6% nitrogen.
- a barrel spring the driving element of a mechanical watch
- Aurpreventing MAIRE in the Swiss Journal of Watchmaking, vol. 5/6, January 1, 1968, pages 213-219, XP001441388, discloses a theory of rapidly rotating barrels, describing the free-spiral spring shape of a spiral spring, and the optimization of geometry for available energy Max.
- the special feature of the barrel spring is that the material works at its maximum stress all along the curvilinear abscissa due to the deformation imposed during the first winding. If the spring is out of the drum, a form of balance key ground resulting from this first winding.
- the difficulty is the selection or development of an alloy to obtain the required performances, and the production of spiral springs comprising at least one zone of thickness less than 0.200 mm, and / or comprising at least one zone of radius of curvature less than 2.15 mm, and in particular less than 0.75 mm or even less than 0.60 mm.
- the watch designer can not therefore choose an alloy catalog on its only theoretical physical characteristics, but he must experiment with particular finishing ranges, on the one hand for the wire used as raw material, and on the other hand for the finished spring , and determine parameters specific to the composition and treatment of the alloy, which can make possible the manufacture of such son-blanks, and such springs. Summary of the invention
- the object of the invention is to provide a watch or jewelery spring, in particular a spiral-type spring such as a mainspring of a cylinder, or a striking ring, or the like, or a flat spring such as a jumper, a shock absorber. or the like, having improved ductility, less cost, and easier to produce industrially, than conventional alloys for making such springs.
- the subject of the invention is a watch or jewelery spring made of a stainless steel alloy comprising a base made of iron and chromium, arranged according to a cubic austenitic structure with centered faces, and of super-type austenitic with manganese and nitrogen,
- said spring has, at least in its zone of least thickness, a thickness of less than 0.20 mm,
- the invention also relates to a watch cylinder having at least one such spring.
- the invention also relates to a timepiece, including a watch, incorporating at least one such watch cylinder and / or such a spring. Thanks to a low nitrogen content, it is possible to maintain, by adding carbon, high mechanical properties while improving the industrial implementation of the alloy.
- the low nitrogen content makes it possible in particular to improve the ductility of the alloy.
- the presence of additional carbon may allow the formation of carbides improving the mechanical properties of the alloy.
- FIG. 1 shows, schematically and in perspective, a mainspring according to the invention, the internal shell and external areas of possible flange fixing not being detailed;
- FIG. 2 represents a mainspring according to the invention, in its free form as a ground key, with a substantially linear part in a concavity direction inversion zone;
- FIG. 3 illustrates, schematically, a timepiece comprising a barrel equipped with a spring according to the invention.
- the invention relates to the field of watch movements, and in particular energy storage, return, or damping springs: spiral type spring such as a mainspring barrel, or ring, or the like, or a flat spring such as jumper, shock absorber, or the like.
- the invention faces the problem of producing very long durability clock springs, small, and in particular spiral springs less than 0.200 mm thick. Only a very long test campaign can test theoretically suitable alloys, and determine the parameter or parameters allowing feasibility in the required performance and dimensions.
- the problem is amplified when it comes to producing a spiral spring 1 with an internal turn 1 1 adapted, in the case of a barrel, a bung or a shaft 50 of very small diameter, less than 4.3 mm, and in particular less than 1, 5 mm, or even less than 1, 2 mm in barrels known as "reduced bung diameter", or in the case of a spiral spring escapement mechanism to a ferrule also of very small diameter especially less than 1, 5 mm.
- the metallurgical tests are particularly concentrated in particular on the maximum values of elongation.
- the experimental campaign shows that the ability to manufacture such a spiral spring is directly related to the C / N ratio, between the mass ratios in the alloy of carbon and nitrogen, which must be framed within a range the absolute and relative limits of carbon and nitrogen contents.
- This manufacture conventionally comprises a range of blank comprising a transformation of a cast billet of alloy by forging, rolling, and possibly by drawing or drawing to obtain a wire rod with a diameter of about 6 mm, which is then peeled and pickled, before a series of other wire drawing separated by recrystallization heat treatments.
- a finishing range ensues, which may comprise at least one other drawing, and at least one cold rolling, and then finishing operations specific to the setting of the spiral geometry, in particular according to a free profile of the so-called key type. ground.
- the case of the manufacture of a spiral clock spring 1 comprises the difficulty inherent in the production of at least one zone of very small radius of curvature, in particular a radius of curvature of less than 2.15 mm.
- a special case is that of a barrel known as a reduced plug, that is to say having a factor K less than 9: during the usual manufacture of a mainspring, by experience, the factor K (quotient of radius of the axis of the barrel by the thickness of the ribbon spring) is between 9 and 16 to ensure that the product is not fragile and to allow its realization.
- the theory of watchmaking recommends having a factor K between 10 and 16, the value 1 1 being the most commonly used. Any reduction in the K factor can increase substantially the number of turns of the mainspring, with equal external volume, and therefore to increase the power reserve of the watch.
- This reduction is related to the minimization of the diameter of the bung, well below the value of 2.15 mm, and in particular under the value of 1.5 mm, which requires that the alloy chosen, as well as its treatment , allow the realization of radii of curvature as small as 2.15 mm or less, without breakage or embrittlement at the end of the spring.
- the problem is similar for an escapement spring spiral spring, whose inner turn is supported on a ferrule of dimensions comparable to those of the bung of a mainspring.
- the invention makes it possible to define a steel alloy suitable for the manufacture of clock springs, in particular for barrel spiral springs or exhaust mechanism springs, having improved ductility compared with alloys of the prior art. easy to produce industrially than these.
- the invention relates to a watch or jewelery spring made of a stainless steel alloy comprising a base consisting of iron and chromium, arranged in a cubic austenitic structure with centered faces, and comprising manganese and aluminum. nitrogen.
- this spring 1 has, at least in its zone of smaller thickness, a thickness of less than 0.20 mm.
- the mass composition of the alloy of this spring 1 is:
- the total carbon and nitrogen is between 0.4% and 1.5%, and the ratio of carbon to nitrogen is between 0.125 and 0.5.
- the mass content of the nitrogen is between 0.40% and 0.75%.
- the mass content of the nitrogen is between 0.45% and 0.55%.
- the carbon mass content is between 0.15% and 0.30%.
- the carbon mass content is between 0.15% and 0.25%.
- the total (C + N) of the mass contents of carbon and nitrogen as a proportion of the total is between 0.60% and 1.00%.
- the total (C + N) of the mass contents of carbon and nitrogen as a proportion of the total is between 0.60% and 0.80%.
- the ratio (C / N) of the mass content of carbon in proportion to the total relative to that of nitrogen is between 0.250 and 0.550.
- the ratio (C / N) of the carbon content in proportion to the total relative to that of nitrogen is between 0.270 and 0.550.
- the total carbon and nitrogen is between 0.4% and 1.5%, and the ratio of carbon to nitrogen is between 0.125 and 0.5.
- the total (C + N) of the mass contents of carbon and nitrogen as a proportion of the total is between 0.60% and 0.80%, and
- the total mass of carbon and nitrogen of the alloy is between 0.6% and 1%, and the ratio of carbon to nitrogen of the alloy is between 0.35 and 0.5.
- the total carbon and nitrogen of the alloy is between 0.75% and 1%, and the ratio of carbon to nitrogen in the alloy is between 0.4 and 0, 5.
- the mass content of chromium which is present to ensure the corrosion resistance (which is historically a major problem for the holding of clock springs, including barrels), is between 16.0% and 20.0%.
- the mass content of chromium is between 16.0% and 17.0%.
- the chromium content of the alloy is between 16% and 20% by weight of the total and the carbon content is between 0.15% and 0.3% by weight of the total.
- the manganese content of the alloy is between 10% and 16% by weight of the total and preferably from 1 1% to 13% by weight of the total and preferably its niobium content. is less than 0.25% by mass of the total.
- At least one of said filler metals is a carburigenic element selected from among a group comprising molybdenum, tungsten, vanadium, niobium, zirconium, and titanium, replacing an equivalent weight of iron in the alloy, with a mass content of between 0.5% and 10.0%. Impurities and other filler metals with the exception of iron are then limited to 3%, and especially 2%.
- this at least one carburizing element is molybdenum, with a mass content of between 2.5% and 4.2%. Molybdenum improves the resistance to corrosion and pitting; it allows the precipitation of molybdenum carbides. In a more particular embodiment, the mass content of the molybdenum is between 2.6% and 2.8%.
- the alloy further comprises, within the limit of 0.5% by mass of the total, at least one other carburigenic element than molybdenum, taken from a set comprising tungsten, vanadium, niobium, zirconium, and titanium, replacing an equivalent weight of iron in the alloy, and the alloy preferably comprises less than 0.5% by weight of nickel.
- the total mass contents of impurities and filler metals with the exception of iron is between 0 and 6.0%.
- the total mass contents of impurities and filler metals with the exception of iron is between 0 and 3.0%.
- one of the filler metals is nickel.
- Nickel promotes, like manganese, the constitution of an austenitic phase, and improves the solubility. For application to a spring locked in motion, without skin contact with the user, it is possible to include a few percent nickel in the alloy without any negative consequences for the user.
- the mass content of the nickel is between 0 and 0.10%.
- one of the filler metals is niobium, with a mass content of between 0 and 0.25%.
- the austenitic structure of such an alloy is indeed necessary for a spring, because of the good cold deformability it allows. It has another advantage, which is far from negligible at the heart of a watch movement, related to the non-magnetic character of the austenite, unlike ferrite or martensite.
- the invention allows a manufacture of clock springs which is more economical than that of springs known from the prior art, which have a high rate of nitrogen which makes their transformation difficult and expensive. Indeed, in this case, the production processes must be conducted under high pressure (several atmospheres) or / and with additives.
- the brittle-ductile TT transition temperature of a stainless alloy as considered approximately follows a rule that the value of TT in Kelvin is proportional to the total of a first term equal to 300 times the nitrogen content and a second term equal to 100 times the carbon content.
- any replacement of nitrogen with carbon therefore has a direct influence with a decrease in this brittle-ductile transition temperature.
- the use of a low nitrogen content at the level of the lowest nitrogen content of the known alloys of the prior art makes it possible to maintain, by adding carbon, high mechanical properties, by the formation of carbides, while improving the industrial implementation of the alloy.
- the low nitrogen content makes it possible in particular to improve the ductility of the alloy.
- the reduction of the nitrogen content is, again, favorable with regard to the precipitation of nitrides.
- composition which is particularly suitable for clock springs and more particularly for barrels, with production at an acceptable cost, implementation without any particular complication, of very good mechanical properties, good resistance to corrosion, low plastic deformation, and long service life.
- This particular composition is, by mass:
- the spring 1 thus produced is of austenitic structure with high mechanical strength, and has a high resistance to fatigue, a high resistance to corrosion, and is non-magnetic.
- this spring 1 comprises at least one zone with a radius of curvature less than 2.15 mm.
- the spring 1 according to the invention is a spiral spring, and in particular a spiral barrel spring or an escapement spring spiral mechanism.
- this spring 1 comprises an inner turn 1 1 which has a radius of curvature less than 2.15 mm, especially less than 0.75 mm.
- this spring 1 has, at least in its zone of smallest thickness, and particularly at this inner turn 1 1, a thickness less than 0.20 mm, especially less than 0.06 mm.
- FIG. 1 represents the particular case where the spring 1 is a spiral spring 10 of a barrel.
- FIG. 2 illustrates a clock spring 10 for winding in a spiral around a shaft 50, and comprising a blade with a first inner turn 1 1 forming a first shell, of a first length L1 between its inner end. and a point A visible in Figure 2, and which is adapted to such a shaft 50 theoretical radius RT given.
- second turn 2 or second shell the part of the spring which comes directly downstream of this first turn, of the same concavity direction as this first turn 1, in an initial state of production output, and before any assembly on such a shaft and before any arming, in the free state and flat, of the mainspring according to the invention.
- the upstream side of the spring will be called that of its inner turn 1 1 on the side of its attachment to the barrel shaft, and the downstream side that of its outer turn 4 clinging to the barrel drum.
- this spring 10 comprises, from the inside to the outside , following the first inner turn 1 1, a second turn 2 of second length L2 (between the point A and a point B inflection visible in Figure 2), same direction of concavity as the first inner turn 1 1.
- the shape of the spring 10 according to the invention comprises, at any point outside this inflection zone 3, a local radius of curvature RC which is between a minimum radius of curvature RCMIN local and a maximum radius of curvature RCMAX local.
- This local radius of curvature RC is greater than the minimum radius of curvature RCMIN local to ensure that the leaf spring 10 is solicited at its maximum stress at any point of its curvilinear abscissa from its first arming.
- this local radius of curvature RC is less than the maximum radius of curvature RCMAX local to ensure that this spring 10 does not break when it is drummed.
- the second length L2 of said second turn 2 is calculated to obtain a predetermined ratio between the theoretical radius RT on the one hand, and the average thickness EM of spring 10 at the first inner turn 1 1 on the other hand, this predetermined ratio being less than 9.
- the second developed length L2 of the second turn 2 corresponds to a spiral of at least at least one turn of the spring. 10, so as to reduce the bias of this spring 10 during its first commissioning arming to put it in a state said service, and so as to minimize the local difference in curvature at any point between said state initial state and said service state.
- the invention makes it possible to go beyond the usual range of use for a spring made of a given material.
- the invention makes it possible to implement a factor K even lower than the known factors for a given material.
- this predetermined ratio K is less than 9, and preferably close to 5 or 6.
- a very low K factor is very favorable because it makes it possible to increase the power reserve of the corresponding cylinder. Indeed, the volume gained results in an increase in the number of turns of development of the mainspring.
- the second developed length L2 of the second turn 2 corresponds to at least two turns of the spring 10, so as to reduce the bias of the spring 10 during its first commissioning arming to put it in a so-called service, and so as to minimize the local difference in curvature at any point between the initial state and the state of service.
- the invention also relates to a timepiece 100 having a shaft 50 of theoretical radius RT given, and at least one such spring 10.
- the invention also relates to a timepiece 200 comprising at least one such cylinder 100, and / or at least one such spring 1 or such a spiral spring 10 according to the invention.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Springs (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01182/13A CH708231B1 (fr) | 2013-06-27 | 2013-06-27 | Ressort d'horlogerie en acier inoxydable austénitique. |
PCT/EP2014/055858 WO2014206582A2 (fr) | 2013-06-27 | 2014-03-24 | Ressort d'horlogerie en acier inoxydable austenitique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3014362A2 true EP3014362A2 (fr) | 2016-05-04 |
Family
ID=50346019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14711981.2A Withdrawn EP3014362A2 (fr) | 2013-06-27 | 2014-03-24 | Ressort d'horlogerie en acier inoxydable austenitique |
Country Status (10)
Country | Link |
---|---|
US (1) | US10048649B2 (fr) |
EP (1) | EP3014362A2 (fr) |
JP (2) | JP2016528377A (fr) |
CN (2) | CN105392910B (fr) |
CH (2) | CH708231B1 (fr) |
DE (1) | DE202014005288U1 (fr) |
FR (1) | FR3007853B1 (fr) |
HK (1) | HK1222419A1 (fr) |
RU (1) | RU2635979C2 (fr) |
WO (1) | WO2014206582A2 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3176281B1 (fr) * | 2015-12-02 | 2019-03-27 | Nivarox-FAR S.A. | Procede d'amelioration d'un alliage fer-nickel-chrome-manganese pour des applications horlogeres |
JP6862847B2 (ja) * | 2016-04-25 | 2021-04-21 | セイコーエプソン株式会社 | 時計用ゼンマイ、時計用動力装置、時計用ムーブメント、時計および時計用ゼンマイの製造方法 |
US10317842B2 (en) * | 2016-04-25 | 2019-06-11 | Seiko Epson Corporation | Timepiece mainspring, timepiece drive device, timepiece movement, timepiece, and manufacturing method of timepiece mainspring |
EP3422116B1 (fr) * | 2017-06-26 | 2020-11-04 | Nivarox-FAR S.A. | Ressort spiral d'horlogerie |
EP3502288B1 (fr) * | 2017-12-21 | 2020-10-14 | Nivarox-FAR S.A. | Procédé de fabrication d'un ressort spiral pour mouvement d'horlogerie |
EP3786720B1 (fr) * | 2019-08-27 | 2023-12-13 | Rolex Sa | Composant horloger destiné à recevoir un organe par chassage |
JP2021096076A (ja) * | 2019-12-13 | 2021-06-24 | セイコーエプソン株式会社 | 時計用外装部品、時計、および、時計用外装部品の製造方法 |
CN113503330B (zh) * | 2021-06-29 | 2023-04-14 | 上海宇航系统工程研究所 | 一种空间用长寿命平面蜗卷弹簧 |
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CH279670A (fr) | 1944-12-12 | 1951-12-15 | Company Elgin National Watch | Ressort moteur, notamment pour mouvement de montre. |
US2524660A (en) | 1947-05-03 | 1950-10-03 | Elgin Nat Watch Co | Watch mainspring |
CH330555A (fr) | 1956-12-04 | 1958-06-15 | Suisse De Ressorts D Horlogeri | Ressort moteur et procédé pour sa fabrication |
SE317325B (fr) | 1961-07-21 | 1969-11-10 | Sandvikens Jernverks Ab | |
JPS4838213Y1 (fr) * | 1969-11-18 | 1973-11-12 | ||
JPH0759723B2 (ja) | 1988-12-07 | 1995-06-28 | 新日本製鐵株式会社 | 高硬度非磁性ステンレス鋼の製造方法 |
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2013
- 2013-06-27 CH CH01182/13A patent/CH708231B1/fr unknown
-
2014
- 2014-03-24 CN CN201480036561.5A patent/CN105392910B/zh active Active
- 2014-03-24 RU RU2016102576A patent/RU2635979C2/ru active
- 2014-03-24 CH CH00445/14A patent/CH708232B1/fr unknown
- 2014-03-24 JP JP2016520320A patent/JP2016528377A/ja active Pending
- 2014-03-24 US US14/896,818 patent/US10048649B2/en active Active
- 2014-03-24 WO PCT/EP2014/055858 patent/WO2014206582A2/fr active Application Filing
- 2014-03-24 EP EP14711981.2A patent/EP3014362A2/fr not_active Withdrawn
- 2014-06-06 FR FR1401313A patent/FR3007853B1/fr active Active
- 2014-06-26 DE DE202014005288.3U patent/DE202014005288U1/de not_active Expired - Lifetime
- 2014-06-27 CN CN201420353273.XU patent/CN204848989U/zh not_active Expired - Lifetime
-
2016
- 2016-09-06 HK HK16110595.0A patent/HK1222419A1/zh unknown
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2018
- 2018-07-18 JP JP2018134739A patent/JP6951300B2/ja active Active
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2014206582A2 * |
Also Published As
Publication number | Publication date |
---|---|
FR3007853B1 (fr) | 2019-08-16 |
WO2014206582A3 (fr) | 2015-12-23 |
JP2016528377A (ja) | 2016-09-15 |
JP2018204112A (ja) | 2018-12-27 |
RU2016102576A (ru) | 2017-08-01 |
WO2014206582A2 (fr) | 2014-12-31 |
CN105392910B (zh) | 2019-05-17 |
US20160147195A1 (en) | 2016-05-26 |
CH708231A2 (fr) | 2014-12-31 |
DE202014005288U1 (de) | 2014-07-11 |
FR3007853A1 (fr) | 2015-01-02 |
RU2635979C2 (ru) | 2017-11-17 |
JP6951300B2 (ja) | 2021-10-20 |
HK1222419A1 (zh) | 2017-06-30 |
CH708232B1 (fr) | 2018-06-29 |
US10048649B2 (en) | 2018-08-14 |
CH708231B1 (fr) | 2017-03-15 |
CN105392910A (zh) | 2016-03-09 |
CN204848989U (zh) | 2015-12-09 |
CH708232A2 (fr) | 2014-12-31 |
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