EP1160341A2 - Process and apparatus for hardening rails - Google Patents
Process and apparatus for hardening rails Download PDFInfo
- Publication number
- EP1160341A2 EP1160341A2 EP01890152A EP01890152A EP1160341A2 EP 1160341 A2 EP1160341 A2 EP 1160341A2 EP 01890152 A EP01890152 A EP 01890152A EP 01890152 A EP01890152 A EP 01890152A EP 1160341 A2 EP1160341 A2 EP 1160341A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- cooling
- rails
- positioning elements
- section
- 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
Images
Classifications
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/04—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/04—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
- C21D9/06—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails with diminished tendency to become wavy
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- 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
- C21D2221/00—Treating localised areas of an article
- C21D2221/01—End parts (e.g. leading, trailing end)
-
- 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
- C21D2221/00—Treating localised areas of an article
- C21D2221/02—Edge parts
Definitions
- the invention relates to a method for hardening rails or at least the rail head of the same by increased cooling with a Converting the structure from the austenitic to a desired one Microstructure stable at room temperature.
- the invention further comprises a device for hardening rails or at least the rail head of the same by increased cooling with a Converting the structure from austenitic to a desired one Microstructure stable at room temperature, consisting essentially of a Rail support means and a cooling device.
- Cooling can be achieved by applying at least parts of the Rail surface with cooling medium, a so-called spray or spray cooling, or by at least partially immersing the rail in a cooling bath take place, with an advantageous use of the rolling heat to the prior art count is.
- flow devices (AT 323224 B, EP 186373 B1), cooling bed transport systems (DE 4237991 A1) and Diving devices (DE 4003363 C1, AT 402941 B) for increased cooling of the Rail or of rail parts known.
- the invention seeks to remedy the problem and aims to develop a method Specify the type mentioned, with which a constant over the length Microstructure distribution in the rail cross section is achieved and a high rail quality can be ensured.
- the further object of the invention is to create a device by means of which the local cooling intensity of the surface areas of the Cross-section is kept the same over the length of the rail.
- the aim is achieved in a method according to the invention in that the Rail aligned, horizontally positioned and in the austenitic structure axially aligned secured against bending, whereupon Maintenance of the clamping or bending protection of the rail and / or at least part of the rail cross-section of a temperature, which lies above the Ac3 point of the alloy, in a manner known per se cooled down at least temporarily and allowed the structure to transform become.
- a particularly economical implementation of the process can be achieved if straightening, positioning and axially aligned clamping of the rail immediately after the last deformation stitch using the rolling heat respectively.
- the rail is standing, the Rail head is directed vertically upwards, is clamped. It is from Advantage if heat is removed from the rail by spray cooling, whereby in Seen in the longitudinal direction in the surface areas of the cross section The same cooling intensities are used symmetrically to the height axis of the rail become.
- the further object of the invention is in a generic device solved in that the rail support means as a supporting structure with one of the Corresponding longitudinal extension and with a high section modulus against bending and with positioning elements and / or releasable clamping devices for a definition of the rail is formed.
- the advantage of a support structure that is resistant to bending and torsion is one Axial straight clamping of the rail, even if due to the different Mass distribution and / or different cooling intensity across the cross section an intensified cooling bending forces are formed.
- An axially straight clamping in relation to the Coolant exposure or coolant wetting of the surface because of it precise alignment to desired areas of the rail with high Uniformity over the rail length is made possible.
- desired cooling rates and so that desired microstructures can be achieved with high accuracy.
- the supporting structure is a welded structure on which at least three Positioning elements, preferably over the longitudinal extent at intervals of 0.5 m each a positioning element are arranged horizontally alignable.
- the releasable clamping means with alignment surfaces for Positioning of the rail in the horizontal longitudinal axis direction are formed.
- the positioning elements and the Clamping means a reduced contact surface on the rail, for example one Wedge shape. This allows the so-called “soft spots” or a Soft spots on the splint can be avoided.
- the cooling device for the Rail as a spray section with air and / or water along the longitudinal extent the same cooling intensity is formed.
- the cooling device as a plunge pool with a cooling liquid is formed in a simple manner by adding synthetic agents Cooling intensity that is effective on the submerged rail zones is set become.
- the setting is further formed such that the rail support structure and the cooling device in the direction of the rail vertical in cross section relative are movable relative to each other, cooling cycles and / or cooling of Rail parts can be carried out particularly efficiently.
- a particularly simple device can be formed or created by retrofitting be when the supporting structure is aligned with a horizontally Positioning elements having plunge pool is connected and that the rail through clamping devices, e.g. hold-downs, to the positioning lanes is employable.
- the clamping means can be in a particularly simple manner Hold-down weights are formed and at least in the distal regions of the Rail be arranged.
- Fig. 1 is a device for axially aligned clamping a Rail 1 shown in a hanging position.
- a supporting structure 2, which from two box profiles 22,21 is torsionally rigid, movable tong-like positioning elements 3, 3 ', which are essentially horizontal Have contact surfaces 31, 31 'for a rail 1.
- each Clamping element 41 for example by a hydraulically actuated piston
- a cooling device 5 for example in a plunge pool 51 with a cooling liquid 52.
- at least partial cooling of at least part of the rail 1 can this by lifting in the direction H of the support structure 2 from a cooling medium deployed and when loosening the clamping means 4 'and the positioning elements 3rd be filed.
- Fig. 2 shows a rail 1, which is standing in a support structure 2 against Bend is securely clamped.
- the given support structure 2 exists for example from a lower and an upper frame box 21, 22, which Box are connected to each other torsionally rigid.
- To an axially aligned Clamping is carried out by applying the rail 1 to positioning parts 23 and Closing positioning elements 3, 3 'which have inclined contact surfaces 31, 31' have, by swiveling in, for example, by hydraulic means 6.
- FIG. 3 an inventive device is disclosed, which laterally arranged frame elements 21, 22 of the supporting structure 2.
- a relative movement H allows immersion the rail into a cooling medium 52.
- a rail 1 is directed with the rail head 11 downwards a plunge pool 51 of a cooling device 5 with a cooling liquid 52 introduced and supported by positioning elements 3 arranged therein.
- a cooling liquid 52 introduced and supported by positioning elements 3 arranged therein.
- Hold-down weights 40 which are movable by holding means 42, on the Rail 1
- the positioning elements 3, 3 ' forming a small gap the contact surfaces 31, 31 'can be lowered, for example, by 0.5 mm.
- the rail 1 is discharged from the cooling device 5, for example Lifting down the hold-down weights 40 and raising the positioning elements 3.3 '.
- the cooling device 5 can also be lowered.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Härten von Schienen oder zumindest des Schienenkopfes derselben durch verstärkte Kühlung mit einem Umwandeln des Gefüges von der austenitiscdhen in eine gewünschte, bei Raumtemperatur stabile Mikrostruktur.The invention relates to a method for hardening rails or at least the rail head of the same by increased cooling with a Converting the structure from the austenitic to a desired one Microstructure stable at room temperature.
Weiter umfaßt die Erfindung eine Einrichtung zum Härten von Schienen oder zumindest des Schienenkopfes derselben durch verstärkte Kühlung mit einem Umwandeln des Gefüges von austenitischen in eine gewünschte, bei Raumtemperatur stabile Mikrostruktur, bestehend im wesentlichen aus einem Schienenstützmittel und einer Kühlvorrichtung.The invention further comprises a device for hardening rails or at least the rail head of the same by increased cooling with a Converting the structure from austenitic to a desired one Microstructure stable at room temperature, consisting essentially of a Rail support means and a cooling device.
Für den schienengebundenen Verkehr mit den steigenden Achslasten und einem dergleichen Verkehrsaufkommen sollten Schienen einerseits einen hohen Verschleißwiderstand im Bereich der Fahrbahnfläche und andererseits, der Biegebeanspruchung im Gleis wegen, eine hohe Bruchsicherheit aufweisen.For rail-bound traffic with increasing axle loads and one Rails of this kind should have a high traffic volume Wear resistance in the area of the road surface and on the other hand, the Bending stress in the track, have a high break resistance.
Es ist bekannt, durch thermisches Vergüten des Werkstoffes bzw. mittels Umwandelns des Gefüges von der austenitischen in eine bei Raumtemperatur stabile Mikrostruktur bei zumindest zeitweiser verstärkter Kühlung, die Schiene und/oder den Schienenkopf zu härten ( EP- 358362 A1, AT 402941 B, EP 186372 B, WO 94/02652).It is known by means of thermal tempering of the material or by means of Convert the structure from austenitic to one at room temperature stable microstructure with at least temporarily increased cooling, the rail and / or to harden the rail head (EP-358362 A1, AT 402941 B, EP 186372 B, WO 94/02652).
Eine Kühlung kann durch Beaufschlagung von zumindest Teilen der Schienenoberfläche mit Kühlmedium, einer sogenannten Spritz- oder Sprühkühlung, oder durch zumindest teilweises Eintauchen der Schiene in ein Kühlungsbad erfolgen, wobei eine vorteilhafte Nutzung der Walzhitze zum Stand der Technik zu zählen ist.Cooling can be achieved by applying at least parts of the Rail surface with cooling medium, a so-called spray or spray cooling, or by at least partially immersing the rail in a cooling bath take place, with an advantageous use of the rolling heat to the prior art count is.
Je nach verwendetem Kühlverfahren sind Durchlaufeinrichtungen (AT 323224 B, EP 186373 B1), Kühlbett-Transportanlagen ( DE 4237991 A1) und Tauchvorrichtungen ( DE 4003363 C1, AT 402941 B) zur verstärkten Kühlung der Schiene oder von Schienenteilen bekannt.Depending on the cooling process used, flow devices (AT 323224 B, EP 186373 B1), cooling bed transport systems (DE 4237991 A1) and Diving devices (DE 4003363 C1, AT 402941 B) for increased cooling of the Rail or of rail parts known.
Bei einer Verwendung von Legierungen mit einer entsprechenden chemischen Zusammensetzung lassen sich bei Anwendung von Härteverfahren in den jeweiligen Einrichtungen durchaus Schienen mit einer erhöhten Härte und Abriebfestigkeit im Bereich der Fahrbahnfläche des Schienenkopfes und ausreichender Bruchsicherheit herstellen.When using alloys with an appropriate chemical Composition can be applied when using hardening processes in the respective Facilities quite rails with increased hardness and abrasion resistance in the Area of the track surface of the rail head and sufficient break resistance produce.
Als großer Nachteil der bekannten Härteverfahren und der Kühleinrichtungen für Schienen ist eine mögliche Inhomogenität der Gefügeverteilung über den Querschnitt in Abhängigkeit von der Schienenlänge zu sehen. Mit anderen Worten ist der Flächenanteil des jeweiligen Vergütungsgefüges und/oder die Position der Gefügeanteile im Schienenquerschnitt über die Schienenlänge ungleich, so wirkt sich dies in zunehmendem Maße äußerst ungünstig auf die Schienengüte aus. Trotz genauer Einhaltung der Verfahrensparameter und präziser Regelung der Kühleinrichtungen können unerwartet Unterschiede in der Schienengüte auftreten, wobei bei einer äußerst aufwendigen Qualitätskontrolle auch einzelne Schienen, die den Qualitätsanforderungen nicht mehr entsprechen, anfallen.As a major disadvantage of the known hardening processes and the cooling devices for Rails is a possible inhomogeneity of the structure distribution over the Cross section can be seen depending on the rail length. In other words is the area share of the respective remuneration structure and / or the position of the Structural components in the rail cross-section uneven across the rail length, this is how it works this is increasingly extremely unfavorable for the rail quality. Despite exact adherence to the process parameters and precise regulation of the Cooling devices may experience unexpected differences in rail quality with an extremely complex quality control even individual rails that no longer meet the quality requirements.
Hier will die Erfindung Abhilfe schaffen und setzt sich zum Ziel, ein Verfahren der eingangs genannten Art anzugeben, mit welchem eine über die Länge konstante Gefügeverteilung im Schienenquerschnitt erreicht wird und eine hohe Schienengüte sichergestellt werden kann.Here, the invention seeks to remedy the problem and aims to develop a method Specify the type mentioned, with which a constant over the length Microstructure distribution in the rail cross section is achieved and a high rail quality can be ensured.
Die weitere Aufgabe der Erfindung besteht in der Schaffung einer Einrichtung, mittels welcher die örtliche Kühlintensität der Oberflächenbereiche des Querschnittes über die Schienenlänge gleichgehalten wird.The further object of the invention is to create a device by means of which the local cooling intensity of the surface areas of the Cross-section is kept the same over the length of the rail.
Das Ziel wird bei einem erfindungsgemäßen Verfahren dadurch erreicht, daß die Schiene im austenitischen Gefügezustand gerichtet, horizontal positioniert und achsfluchtend gegen Biegung gesichert eingespannt wird, worauf unter Aufrechterhaltung der Einspannung bzw. Verbiegungssicherung der Schiene und/oder zumindest ein Teil des Schienenquerschnittes von einer Temperatur, welche oberhalb des Ac3- Punktes der Legierung liegt, in an sich bekannter Weise zumindest zeitweise verstärkt abgekühlt und das Gefüge umwandeln gelassen werden.The aim is achieved in a method according to the invention in that the Rail aligned, horizontally positioned and in the austenitic structure axially aligned secured against bending, whereupon Maintenance of the clamping or bending protection of the rail and / or at least part of the rail cross-section of a temperature, which lies above the Ac3 point of the alloy, in a manner known per se cooled down at least temporarily and allowed the structure to transform become.
Die mit der Erfindung erzielten Vorteile sind im wesentlichen darin zu sehen, daß im austenitischen Gefügezustand ein Richten erfolgt und der Schiene sodann im achsfluchtend eingespannten Zustand oberflächlich verstärkt Wärme entzogen wird. Während einer intensivierten Kühlung von gegebenenfalls Teilen des Schienenquerschnittes bleibt die Schiene achsgerade eingespannt, was der Konstanz der spezifischen Kühlintensität in Achsrichtung förderlich ist. Umfangreiche Untersuchungen haben gezeigt, daß, wenn auch nur geringe Krümmung der Schiene während der intensivierten Abkühlung von zumindest Teilen derselben entstehen, sich die örtliche Akühlkurve im Oberflächenbereich ändern kann, wodurch die Gefügeausbildung bei der Umwandlung aus dem austenitischen Zustand der Legierung in hohem Maße beeinflußt wird. Erfindungsgemäß sichert eine achsfluchtende horizontale Einspannung bei einem thermischen Vergüten der Schiene ein gleichbleibendes Eigenschaftsprofil des Werkstoffes über den Querschnitt und über die Schienenlänge.The advantages achieved by the invention can be seen essentially in the fact that Austenitic structural state is a straightening and then the rail in axially aligned clamped state, superficial heat is extracted. During an intensive cooling of any parts of the Rail cross-section, the rail remains clamped axially straight, what the Consistency of the specific cooling intensity in the axial direction is beneficial. Extensive studies have shown that, albeit only minor Curvature of the rail during the intensive cooling of at least parts these arise, the local cooling curve in the surface area changes can, which causes the microstructure in the transformation from the austenitic Condition of the alloy is greatly influenced. Secures according to the invention an axially aligned horizontal clamping with a thermal hardening of the Rail a constant property profile of the material across the Cross section and over the rail length.
Eine besonders wirtschaftliche Durchführung des Verfahrens ist erreichbar, wenn ein Richten, ein Positionieren und ein achsfluchtendes Einspannen der Schiene unmittelbar nach dem letzten Verformungsstich unter Nutzung der Walzhitze erfolgen.A particularly economical implementation of the process can be achieved if straightening, positioning and axially aligned clamping of the rail immediately after the last deformation stitch using the rolling heat respectively.
Anlagentechnisch, aber auch für eine gewünschte Gefügeverteilung über den Querschnitt, kann es günstig sein, wenn die Schiene stehend, wobei der Schienenkopf senkrecht nach oben gerichtet ist, eingespannt wird. Dabei ist von Vorteil, wenn der Schiene durch Spritzkühlung Wärme entzogen wird, wobei in Längsrichtung gesehen in den Oberflächenbereichen des Querschnittes symmetrisch zur Höhenachse der Schiene gleich hohe Kühlintensitäten verwendet werden.Technically, but also for a desired structure distribution over the Cross section, it may be beneficial if the rail is standing, the Rail head is directed vertically upwards, is clamped. It is from Advantage if heat is removed from the rail by spray cooling, whereby in Seen in the longitudinal direction in the surface areas of the cross section The same cooling intensities are used symmetrically to the height axis of the rail become.
Um die Herstellsicherheit von Schienen mit gewünschten Eigenschaftsprofil zu erhöhen und besondere Abriebfestigkeit der Fahrfläche zu erreichen, kann es vorteilhaft sein, wenn die Schiene hängend, wobei der Schienenkopf senkrecht nach unten gerichtet ist, eingespannt wird. Eine derartige Positionierung hat sich auch deshalb als günstig erwiesen, weil dadurch der Schiene oder nur dem Schienenkopf durch Tauchen in eine Kühlflüssigkeit Wärme entzogen wird.To ensure the manufacturing safety of rails with the desired property profile it can increase and achieve special abrasion resistance of the driving surface be advantageous if the rail is hanging, with the rail head pointing vertically below is clamped. Such a positioning has also happened proven to be cheap, because of the rail or only the rail head heat is removed by immersion in a coolant.
Für eine geregelte Abkühlung auf eine gewünschte Temperatur mit hoher Kühlintensität des Kühlmediums und ein Unterbrechen der verstärkten Kühlung kann es umwandlungskinetisch von Vorteil sein, wenn die Kühlung der Schiene zeitlich und/oder örtlich, einen Oberflächenbereich des Querschnittes betreffend, intermittierend durchgeführt wird. Dabei kann es auch wichtig sein, wenn die Schiene nach der verstärkten Abkühlung ausgespannt, bei erhöhter Temperatur gehalten und/oder an ruhender Luft auf Raumtemperatur abkühlen gelassen wird.For controlled cooling to a desired temperature with high Cooling intensity of the cooling medium and an interruption of the increased cooling it can be kinetically advantageous if the cooling of the rail temporally and / or locally, regarding a surface area of the cross section, is carried out intermittently. It can also be important if the The rail is stretched out after the increased cooling, at elevated temperature held and / or allowed to cool to room temperature in still air.
Eine Verwendung des Verfahrens, bei welchem ein Abkühlen oder Härten bzw. ein thermisches Vergüten der Schiene in voller Länge erfolgt, har sich im Hinblick auf besondere Gleichmäßigkeit und hohe Güte sowie einer Einstellung optimaler Gebrauchseigenschaften derselben als besonders günstig erwiesen.Use of the method in which cooling or hardening or thermal tempering of the rail takes place in full length, with regard to special uniformity and high quality as well as an optimal setting Use properties of the same have proven to be particularly favorable.
Die weitere Aufgabe der Erfindung wird bei einer gattungsgemäßen Einrichtung dadurch gelöst, daß das Schienenstützmitel als Tragkonstruktion mit einer der Schiene entsprechenden Längserstreckung und mit hohem Widerstandsmoment gegen Biegung sowie mit Positionierelementen und/oder lösbaren Spannmitteln für eine Festlegung der Schiene gebildet ist.The further object of the invention is in a generic device solved in that the rail support means as a supporting structure with one of the Corresponding longitudinal extension and with a high section modulus against bending and with positioning elements and / or releasable clamping devices for a definition of the rail is formed.
Der Vorteil einer verbiegungs-und verwindungssteifen Tragkonstruktion ist eine achsgerade Einspannung der Schiene, auch wenn auf Grund der unterschiedlichen Masseverteilung und/oder unterschiedlichen Kühlintensität über den Querschnitt bei einer intensivierten Abkühlung Biegekräfte gebildet werden. Ebenso erheblich sind die Vorteile einer achsgeraden Einspannung im Bezug auf die Kühlmittelbeaufschlagung oder Kühlflüssigkeitsbenetzung der Oberfläche, weil damit eine genaue Ausrichtung auf gewünschte Bereiche der Schiene mit hoher Gleichmäßigkeit über die Schienenlänge ermöglicht ist. Somit können für vorgesehene Querschnittszonen gewünschte Abkühlungsgeschwindigkeiten und damit gewünschte Gefügeausbildungen mit hoher Genauigkeit erreicht werden.The advantage of a support structure that is resistant to bending and torsion is one Axial straight clamping of the rail, even if due to the different Mass distribution and / or different cooling intensity across the cross section an intensified cooling bending forces are formed. Are equally significant the advantages of an axially straight clamping in relation to the Coolant exposure or coolant wetting of the surface because of it precise alignment to desired areas of the rail with high Uniformity over the rail length is made possible. Thus for intended cross-sectional zones desired cooling rates and so that desired microstructures can be achieved with high accuracy.
Anlagentechnisch, aber auch im Hinblick auf die Verwendung kann es günstig sein, wenn die Tragkonstruktion als Schweißkonstruktion, an welcher mindestens drei Positionierelemente, vorzugsweise über die Längserstreckung in Abständen von 0,5 m jeweils ein Positionierelement, horizontal ausrichtbar angeordnet sind.Technically, but also in terms of use, it can be beneficial if the supporting structure is a welded structure on which at least three Positioning elements, preferably over the longitudinal extent at intervals of 0.5 m each a positioning element are arranged horizontally alignable.
Eine einfache und sichere Einrichtung ist gegeben, wenn lösbare Spannmittel als Niederhaltungen für die an den Positionierelementen anliegenden Schienen gebildet sind.A simple and safe set-up is given when releasable clamping devices Hold-downs are formed for the rails abutting the positioning elements are.
Es ist auch vorteilhaft möglich, daß die lösbaren Spannmittel mit Ausrichtflächen zur Positionierung der Schiene in horizontaler Längsachsrichtung gebildet sind.It is also advantageously possible that the releasable clamping means with alignment surfaces for Positioning of the rail in the horizontal longitudinal axis direction are formed.
Um eine über die Länge der Schiene möglichst gleichmäßige Gefügestruktur zu erreichen bzw. um keine wesentliche Beeinflussung der örtlichen Kühlintensität zu bewirken, kann es von Vorteil sein, wenn die Positionierelemente und die Spannmittel eine verringerte Anlagefläche an die Schiene, zum Beispiel eine Keilform, aufweisen. Dadurch können die sogenannten " soft spots" bzw. eine Weichfleckigkeit der Schiene vermieden werden.In order to achieve a structure that is as uniform as possible over the length of the rail reach or to have no significant influence on the local cooling intensity cause it can be advantageous if the positioning elements and the Clamping means a reduced contact surface on the rail, for example one Wedge shape. This allows the so-called "soft spots" or a Soft spots on the splint can be avoided.
Bei sorgfältiger Düsenanordnung und/oder der Verwendung von im wesentlichen schwebstofffreiem Wasser kann es günstig sein, wenn die Kühlvorrichtung für die Schiene als Sprühstrecke mit Luft und/oder Wasser mit über die Längserstreckung gleicher Kühlintensität gebildet ist.With careful nozzle placement and / or using essentially suspended water it can be beneficial if the cooling device for the Rail as a spray section with air and / or water along the longitudinal extent the same cooling intensity is formed.
Wenn hingegen die Kühleinrichtung als Tauchbecken mit einer Kühlflüssigkeit gebildet ist, kann auf einfache Weise durch Zusatz von synthetischen Mitteln die Kühlintensität, die auf die eingetauchten Schienenzonen wirksam sind, eingestellt werden.If, however, the cooling device as a plunge pool with a cooling liquid is formed in a simple manner by adding synthetic agents Cooling intensity that is effective on the submerged rail zones is set become.
Wenn weiter die Einstellung derart gebildet ist, daß die Schienentragkonstruktion und die Kühleinrichtung in Richtung der Schienenvertikalen im Querschnitt relativ zueinander bewegbar sind, können Kühlzyklen und/oder eine Kühlung von Schienenteilen besonders effizient durchgeführt werden.If the setting is further formed such that the rail support structure and the cooling device in the direction of the rail vertical in cross section relative are movable relative to each other, cooling cycles and / or cooling of Rail parts can be carried out particularly efficiently.
Eine besonders einfache Einrichtung kann gebildet oder durch Nachrüstung erstellt sein, wenn die Tragkonstruktion mit einem horizontal ausgerichtete Positionierelemente aufweisenden Tauchbecken verbunden ist und daß die Schiene durch Spannmittel, zum Beispiel Niederhaltungen, an die Positionierlemene anstellbar ist. Dabei können in besonders einfacher Weise die Spannmittel als Niederhaltegewichte ausgebildet und zumindest in den distalen Bereichen der Schiene angeordnet sein.A particularly simple device can be formed or created by retrofitting be when the supporting structure is aligned with a horizontally Positioning elements having plunge pool is connected and that the rail through clamping devices, e.g. hold-downs, to the positioning lanes is employable. The clamping means can be in a particularly simple manner Hold-down weights are formed and at least in the distal regions of the Rail be arranged.
Für eine quasi isotherme Wärmebehandlung ist von Vorteil, wenn die Einrichtung zur diskontinuierlichen Härtung von Schienen oder Querschnittsteilen derselben einsetzbar ist.For a quasi isothermal heat treatment it is advantageous if the device for the discontinuous hardening of rails or cross-sectional parts of the same can be used.
Im folgenden wird die Erfindung anhand von jeweils einen Ausführungsweg darstellenden Zeichnungen näher erläutert.In the following, the invention is based on one embodiment illustrative drawings explained in more detail.
Es zeigen
In Fig. 1 ist schematisch eine Einrichtung zum achsfluchtenden Einspannen einer
Schiene 1 in einer hängenden Position gezeigt. Eine Tragkonstruktion 2, welche aus
zwei Kastenprofilen 22,21 verwindungssteif gebildet ist, trägt bewegbare
zangenartige Positionierelemente 3, 3', welche im wesentlichen horizontale
Anlageflächen 31, 31' für eine Schiene 1 besitzen. Nach einem Einbringen der
Schiene 1 und Schließen der Positionierelemente 3,3' kann jeweils ein
Spannelement 41, beispielsweise durch einen hydraulisch betätigbaren Kolben eine
achsfluchtende Einspannung der Schiene sicherstellen, welche Schiene weiters
durch beispielsweise ein Absenken der Tragkonstruktion 2 in eine Kühleinrichtung 5,
zum Beispiel in ein Tauchbecken 51 m it einer Kühlflüssigkeit 52 verbracht wird.
Nach zumindest teilweiser Abkühlung zumindest eines Teiles der Schiene 1 kann
diese durch Anheben in Richtung H der Tragkonstruktion 2 aus einem Kühlmedium
ausgebracht und bei Lösen des Spannmittels 4' und der Positionierelemente 3
abgelegt werden.In Fig. 1 is a device for axially aligned clamping a
Fig. 2 zeigt eine Schiene 1, welche stehend in einer Tragkonstruktion 2 gegen
Biegung gesichert eingespannt ist. Die gegebene Tragkonstruktion 2 besteht
beispielsweise aus einem unteren und einem oberen Rahmenkasten 21,22, welche
Kasten miteinander verwindungssteif verbunden sind. Zu einer achsfluchtenden
Einspannung erfolgt ein Aufbringen der Schiene 1 auf Positionierteile 23 und ein
Schließen von Positionierelementen 3,3', welche schräge Anlageflächen 31, 31'
besitzen, durch Einschwenken beispielsweise durch hydraulische Mittel 6.Fig. 2 shows a
In Fig. 3 ist eine erfindungsgemäße Einrichtung offenbart, welche seitlich
angeordnete Rahmenelemente 21, 22 der Tragkonstruktion 2 aufweist. Zur
Einspannung einer Schiene 1, welche von Positionierelementen 3,3' mit
Auflageflächen 31,31' getragen wird, werden Spannmittel 4,4' um Drehpunkte 42,42'
geschwenkt und deren Anlageflächen 41, 41' auf den Schienenfuß angestellt und
derart die Schiene 1 festgelegt. Durch eine Relativbewegung H kann ein Eintauchen
der Schiene in ein Kühlmedium 52 erfolgen.In Fig. 3 an inventive device is disclosed, which laterally
arranged
In Fig. 4 ist wiederum schematisch eine horizontale Ausrichtung einer Schiene 1
dargestellt. Eine Schiene 1 wird mit dem Schienenkopf 11 nach unten gerichtet in
ein Tauchbecken 51 einer Kühlvorrichtung 5 mit einer Kühlflüssigkeit 52
eingebracht und durch darin angeordnete Positionierlemente 3 abgestützt. Zur
Einspannung in einer achsgeraden horizontalen Position erfolgt ein Auflegen von
Niederhaltegewichten 40, welche durch Haltemittel 42 bewegbar sind, auf die
Schiene 1, wobei die Positionierelemente 3,3' zur Bildung eines geringen Spaltes an
den Anlageflächen 31,31' von beispielsweise 0,5 mm abgesenkt werden können.
Zum Austrag der Schiene 1 aus der Kühlvorrichtung 5 erfolgt beispielsweise ein
Abheben der Niederhaltegewichte 40 und ein Hochfahren der Positionierelemente
3,3'. Es kann jedoch auch ein Absenken der Kühlvorrichtung 5 erfolgen.4 again schematically shows a horizontal alignment of a
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT01890152T ATE306566T1 (en) | 2000-05-29 | 2001-05-22 | METHOD AND DEVICE FOR HARDENING RAILS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT9392000 | 2000-05-29 | ||
AT0093900A AT409268B (en) | 2000-05-29 | 2000-05-29 | METHOD AND DEVICE FOR HARDENING RAILS |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1160341A2 true EP1160341A2 (en) | 2001-12-05 |
EP1160341A3 EP1160341A3 (en) | 2004-01-02 |
EP1160341B1 EP1160341B1 (en) | 2005-10-12 |
Family
ID=3683291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01890152A Revoked EP1160341B1 (en) | 2000-05-29 | 2001-05-22 | Process and apparatus for hardening rails |
Country Status (20)
Country | Link |
---|---|
US (1) | US6432230B1 (en) |
EP (1) | EP1160341B1 (en) |
JP (1) | JP2002047516A (en) |
KR (1) | KR100512401B1 (en) |
CN (1) | CN1180097C (en) |
AT (2) | AT409268B (en) |
AU (1) | AU778188B2 (en) |
BR (1) | BR0102154B1 (en) |
CA (1) | CA2349321C (en) |
CZ (1) | CZ299001B6 (en) |
DE (1) | DE50107654D1 (en) |
DK (1) | DK1160341T3 (en) |
ES (1) | ES2247050T3 (en) |
HR (1) | HRP20010411B1 (en) |
HU (1) | HU223348B1 (en) |
PL (1) | PL197258B1 (en) |
RU (1) | RU2226557C2 (en) |
SK (1) | SK286764B6 (en) |
TW (1) | TW499335B (en) |
UA (1) | UA76693C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2085160A1 (en) * | 2008-02-04 | 2009-08-05 | voestalpine Schienen GmbH | Device for hardening rails |
ITMI20082163A1 (en) * | 2008-12-05 | 2010-06-06 | Danieli Off Mecc | RAIL HANDLING MACHINE AND RELATIVE HANDLING PROCESS |
EP2465953B1 (en) | 2009-05-20 | 2015-07-08 | Danieli & C. Officine Meccaniche SpA | Cooling tank for rails |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT409268B (en) * | 2000-05-29 | 2002-07-25 | Voest Alpine Schienen Gmbh & C | METHOD AND DEVICE FOR HARDENING RAILS |
AT410549B (en) * | 2001-09-13 | 2003-05-26 | Voest Alpine Schienen Gmbh & C | DEVICE FOR TURNING ROLLED GOODS WITH LONG LENGTH |
KR101025397B1 (en) * | 2004-01-09 | 2011-03-29 | 신닛뽄세이테쯔 카부시키카이샤 | Rail manufacturing method |
DE112008001803T5 (en) * | 2007-07-11 | 2010-05-20 | GKN Sinter Metals, Inc., Auburn Hills | Functionally graduated powder metal components |
ITMI20072244A1 (en) * | 2007-11-28 | 2009-05-29 | Danieli Off Mecc | DEVICE FOR HEAT TREATMENT OF RAILS AND ITS PROCESS |
JP4757955B2 (en) * | 2009-03-27 | 2011-08-24 | 新日本製鐵株式会社 | Rail welding section cooling device and cooling method |
ITMI20112052A1 (en) * | 2011-11-11 | 2013-05-12 | Danieli Off Mecc | COOLING TANK FOR RAILS |
DE102012020844A1 (en) | 2012-10-24 | 2014-04-24 | Thyssenkrupp Gft Gleistechnik Gmbh | Process for the thermomechanical treatment of hot-rolled profiles |
ES2559661T3 (en) | 2013-03-22 | 2016-02-15 | Primetals Technologies Italy S.R.L. | Rail heat treatment system |
EP2987872B1 (en) * | 2013-04-17 | 2018-07-18 | Scientific And Manufacturing Enterprise "Tomsk Electronic Company" Ltd. | Device for thermally processing rails |
RU2636777C1 (en) * | 2016-12-27 | 2017-11-28 | РЕЙЛ 1520 АйПи ЛТД | Method for heat treatment of railway wheels |
RU2668872C1 (en) * | 2017-11-08 | 2018-10-04 | Акционерное общество "Нижнетагильский металлургический комбинат" (АО "ЕВРАЗ НТМК") | Railroad wheel heat treatment method |
CZ308471B6 (en) * | 2019-08-19 | 2020-09-02 | Západočeská Univerzita V Plzni | Method of manufacturing steel parts from AHS steel by controlled local cooling with a medium, using the formation of a multiphase structure with intermittent cooling at the required temperature |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US368132A (en) * | 1887-08-09 | coffin | ||
US4913747A (en) * | 1984-12-24 | 1990-04-03 | Nippon Steel Corporation | Method of and apparatus for heat-treating rails |
US5054746A (en) * | 1990-02-05 | 1991-10-08 | Voest-Alpine Industrieanlagenbau Gesellschaft M.B.H. | Apparatus for hardening rails |
US5440889A (en) * | 1992-11-11 | 1995-08-15 | Sms Schloemann-Siemag Ag | Method of and arrangement for cooling of hot rolled sections in particular rails |
EP0693562A1 (en) * | 1994-07-19 | 1996-01-24 | VOEST-ALPINE SCHIENEN GmbH | Process and apparatus for heat-treating shaped rolled pieces |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US125650A (en) * | 1872-04-09 | Improvement in tempering steel railroad rails | ||
FR2109121A5 (en) | 1970-10-02 | 1972-05-26 | Wendel Sidelor | |
AT375402B (en) * | 1982-03-09 | 1984-08-10 | Voest Alpine Ag | METHOD FOR HEAT-TREATING RAILS |
JPS5953628A (en) * | 1982-09-22 | 1984-03-28 | Nippon Steel Corp | Manufacturing method for rails with excellent breakage resistance |
US4895605A (en) | 1988-08-19 | 1990-01-23 | Algoma Steel Corporation | Method for the manufacture of hardened railroad rails |
US5209792A (en) * | 1990-07-30 | 1993-05-11 | Nkk Corporation | High-strength, damage-resistant rail |
AT399346B (en) | 1992-07-15 | 1995-04-25 | Voest Alpine Schienen Gmbh | METHOD FOR TREATING RAILS |
AT409268B (en) * | 2000-05-29 | 2002-07-25 | Voest Alpine Schienen Gmbh & C | METHOD AND DEVICE FOR HARDENING RAILS |
-
2000
- 2000-05-29 AT AT0093900A patent/AT409268B/en not_active IP Right Cessation
- 2000-09-20 US US09/665,121 patent/US6432230B1/en not_active Expired - Lifetime
-
2001
- 2001-05-11 CA CA2349321A patent/CA2349321C/en not_active Expired - Lifetime
- 2001-05-16 JP JP2001184073A patent/JP2002047516A/en active Pending
- 2001-05-22 DE DE50107654T patent/DE50107654D1/en not_active Revoked
- 2001-05-22 EP EP01890152A patent/EP1160341B1/en not_active Revoked
- 2001-05-22 ES ES01890152T patent/ES2247050T3/en not_active Expired - Lifetime
- 2001-05-22 AT AT01890152T patent/ATE306566T1/en not_active IP Right Cessation
- 2001-05-22 AU AU46187/01A patent/AU778188B2/en not_active Ceased
- 2001-05-22 DK DK01890152T patent/DK1160341T3/en active
- 2001-05-22 PL PL347667A patent/PL197258B1/en unknown
- 2001-05-23 CZ CZ20011818A patent/CZ299001B6/en not_active IP Right Cessation
- 2001-05-25 SK SK720-2001A patent/SK286764B6/en not_active IP Right Cessation
- 2001-05-28 RU RU2001114595/02A patent/RU2226557C2/en not_active IP Right Cessation
- 2001-05-28 HU HU0102212A patent/HU223348B1/en not_active IP Right Cessation
- 2001-05-28 UA UA2001053601A patent/UA76693C2/en unknown
- 2001-05-29 BR BRPI0102154-0A patent/BR0102154B1/en not_active IP Right Cessation
- 2001-05-29 KR KR10-2001-0029613A patent/KR100512401B1/en active IP Right Grant
- 2001-05-29 CN CNB011208279A patent/CN1180097C/en not_active Expired - Fee Related
- 2001-05-29 HR HR20010411A patent/HRP20010411B1/en not_active IP Right Cessation
- 2001-07-18 TW TW090117518A patent/TW499335B/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US368132A (en) * | 1887-08-09 | coffin | ||
US4913747A (en) * | 1984-12-24 | 1990-04-03 | Nippon Steel Corporation | Method of and apparatus for heat-treating rails |
US5054746A (en) * | 1990-02-05 | 1991-10-08 | Voest-Alpine Industrieanlagenbau Gesellschaft M.B.H. | Apparatus for hardening rails |
US5440889A (en) * | 1992-11-11 | 1995-08-15 | Sms Schloemann-Siemag Ag | Method of and arrangement for cooling of hot rolled sections in particular rails |
EP0693562A1 (en) * | 1994-07-19 | 1996-01-24 | VOEST-ALPINE SCHIENEN GmbH | Process and apparatus for heat-treating shaped rolled pieces |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2009200367B2 (en) * | 2008-02-04 | 2011-03-31 | Voestalpine Schienen Gmbh | Device for hardening rails |
US8557172B2 (en) | 2008-02-04 | 2013-10-15 | Voestalpine Schienen Gmbh | System and method for hardening rails |
AU2011200883B2 (en) * | 2008-02-04 | 2014-12-04 | Voestalpine Schienen Gmbh | Device for hardening rails |
EP2241384A1 (en) * | 2008-02-04 | 2010-10-20 | voestalpine Schienen GmbH | Device for hardening rails |
EP2243565A1 (en) * | 2008-02-04 | 2010-10-27 | voestalpine Schienen GmbH | Device for hardening rails |
EP2243566A1 (en) * | 2008-02-04 | 2010-10-27 | voestalpine Schienen GmbH | Device for hardening rails |
EP2085160A1 (en) * | 2008-02-04 | 2009-08-05 | voestalpine Schienen GmbH | Device for hardening rails |
US8226883B2 (en) | 2008-02-04 | 2012-07-24 | Voestalpine Schienen Gmbh | System and method for hardening rails |
ITMI20082163A1 (en) * | 2008-12-05 | 2010-06-06 | Danieli Off Mecc | RAIL HANDLING MACHINE AND RELATIVE HANDLING PROCESS |
CN102239269B (en) * | 2008-12-05 | 2013-05-22 | 丹尼尔和科菲森梅克尼齐有限公司 | Handling machine for handling rails and handling process thereof |
CN102239269A (en) * | 2008-12-05 | 2011-11-09 | 丹尼尔和科菲森梅克尼齐有限公司 | Handling machine for handling rails and handling process thereof |
US8668788B2 (en) | 2008-12-05 | 2014-03-11 | Danieli & C. Officine Meccaniche S.P.A. | Handling machine for handling rails and handling process thereof |
WO2010063843A1 (en) * | 2008-12-05 | 2010-06-10 | Danieli & C. Officine Meccaniche S.P.A. | Handling machine for handling rails and handling process thereof |
EA020785B1 (en) * | 2008-12-05 | 2015-01-30 | Даньели Энд К. Оффичине Мекканике С.П.А. | Handling machine for handling rails and handling process thereof |
EP2465953B1 (en) | 2009-05-20 | 2015-07-08 | Danieli & C. Officine Meccaniche SpA | Cooling tank for rails |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT409268B (en) | METHOD AND DEVICE FOR HARDENING RAILS | |
AT505930B1 (en) | DEVICE FOR HARDENING RAILS | |
EP2573194B1 (en) | Method and device for heat treating rails | |
DE102016102093B3 (en) | Continuous cooling device and method for cooling a metal strip | |
EP1412543B1 (en) | Method for cooling work pieces especially shape-rolled products from rail steel | |
DE4237991A1 (en) | Cooling hot-rolled products, rails - using appts. with carrier elements allowing rails to be suspended with their top downwards | |
AT410549B (en) | DEVICE FOR TURNING ROLLED GOODS WITH LONG LENGTH | |
DE19916173A1 (en) | Method and device for adjusting the slab profile of a continuously cast slab, in particular a thin slab | |
DE10148305A1 (en) | Process and plant for the thermal treatment of rails | |
EP0725152B1 (en) | Method and device for cooling hot-rolled profiles | |
DE3728498C2 (en) | Device for heat treatment of rails | |
AT402941B (en) | METHOD AND DEVICE FOR THE HEAT TREATMENT OF PROFILED ROLLING MATERIAL | |
WO2001009395A1 (en) | Method for hardening at least one surface of a component wall and a device for carrying out said method | |
DE202005015907U1 (en) | Device for the targeted heat treatment of railway track wheels | |
CH688129A5 (en) | Casting machine for the vertical continuous casting in a magnetic field. | |
DE2541978B2 (en) | PROCESS FOR THE HEAT TREATMENT OF SOFT PARTS IN A CONTINUOUS PROCESS | |
DE19613719C1 (en) | Stress-free rail production method | |
DE1583338C3 (en) | Method and device for hardening the outer shell of a steel roller provided with a bore | |
EP0621344A1 (en) | Flexible adaptive quenching | |
DE1596384B2 (en) | METHOD FOR TRANSPORTING A SOFT GLASS PANEL AND DEVICE FOR CARRYING OUT THE METHOD | |
DE550128C (en) | Method for manufacturing hard head rails | |
DE1596384C3 (en) | Method for transporting a glass pane in which state and device for carrying out the method | |
DE102010033473A1 (en) | Process for the heat treatment of the wheel rim of rail vehicle wheels | |
DE2940826A1 (en) | Deep hardening of workpieces, esp. railway rails - where brief surface quenching and controlled cooling produces fine sorbite structure with high wear resistance | |
DD219217A1 (en) | DEVICE FOR PARTIALLY ADJUSTING STAFF BODY COMPONENTS |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17P | Request for examination filed |
Effective date: 20040405 |
|
17Q | First examination report despatched |
Effective date: 20040510 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VOESTALPINE SCHIENEN GMBH |
|
AKX | Designation fees paid |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AXX | Extension fees paid |
Extension state: MK Payment date: 20040405 Extension state: RO Payment date: 20040405 Extension state: SI Payment date: 20040405 Extension state: LT Payment date: 20040405 Extension state: LV Payment date: 20040405 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: LT LV MK RO SI |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: CH Ref legal event code: NV Representative=s name: BUECHEL, VON REVY & PARTNER |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20051012 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50107654 Country of ref document: DE Date of ref document: 20051117 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: EP Ref document number: 20050403850 Country of ref document: GR |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2247050 Country of ref document: ES Kind code of ref document: T3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060531 |
|
ET | Fr: translation filed | ||
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
26 | Opposition filed |
Opponent name: CORUS UK LTD. Effective date: 20060712 |
|
NLR1 | Nl: opposition has been filed with the epo |
Opponent name: CORUS UK LTD. |
|
PLBB | Reply of patent proprietor to notice(s) of opposition received |
Free format text: ORIGINAL CODE: EPIDOSNOBS3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051012 |
|
RDAF | Communication despatched that patent is revoked |
Free format text: ORIGINAL CODE: EPIDOSNREV1 |
|
APAH | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNO |
|
APBM | Appeal reference recorded |
Free format text: ORIGINAL CODE: EPIDOSNREFNO |
|
APBP | Date of receipt of notice of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA2O |
|
APBQ | Date of receipt of statement of grounds of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA3O |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20090513 Year of fee payment: 9 Ref country code: IE Payment date: 20090526 Year of fee payment: 9 Ref country code: NL Payment date: 20090527 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20090515 Year of fee payment: 9 Ref country code: FI Payment date: 20090515 Year of fee payment: 9 Ref country code: PT Payment date: 20090511 Year of fee payment: 9 Ref country code: SE Payment date: 20090514 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20090622 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20090518 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GR Payment date: 20090428 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 20100518 Year of fee payment: 10 Ref country code: FR Payment date: 20100611 Year of fee payment: 10 Ref country code: ES Payment date: 20100525 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20100521 Year of fee payment: 10 Ref country code: IT Payment date: 20100522 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20101122 |
|
BERE | Be: lapsed |
Owner name: *VOESTALPINE SCHIENEN G.M.B.H. Effective date: 20100531 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20100519 Year of fee payment: 10 Ref country code: TR Payment date: 20100421 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20101201 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
APBU | Appeal procedure closed |
Free format text: ORIGINAL CODE: EPIDOSNNOA9O |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100522 Ref country code: FI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100522 |
|
EUG | Se: european patent has lapsed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101122 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100531 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100531 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
RDAG | Patent revoked |
Free format text: ORIGINAL CODE: 0009271 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT REVOKED |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101201 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100531 Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100523 Ref country code: GR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101202 |
|
27W | Patent revoked |
Effective date: 20110120 |
|
GBPR | Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state |
Effective date: 20110120 |
|
REG | Reference to a national code |
Ref country code: PT Ref legal event code: MP4A Effective date: 20110415 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100531 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100524 |