EP1208924B1 - Wire cooling device - Google Patents
Wire cooling device Download PDFInfo
- Publication number
- EP1208924B1 EP1208924B1 EP01127074A EP01127074A EP1208924B1 EP 1208924 B1 EP1208924 B1 EP 1208924B1 EP 01127074 A EP01127074 A EP 01127074A EP 01127074 A EP01127074 A EP 01127074A EP 1208924 B1 EP1208924 B1 EP 1208924B1
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- EP
- European Patent Office
- Prior art keywords
- cooling
- wire
- core
- cooling apparatus
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
- C21D9/5732—Continuous furnaces for strip or wire with cooling of wires; of rods
Definitions
- the invention relates to a device for continuous Cooling a heat-treated wire according to the preamble of claim 1 (see, for example, SU-A-797814).
- Heat treatments are common to manufacture wires to give the desired properties.
- a known method for this purpose is inductive annealing, in which the wire to be treated in a short-circuited loop is passed through a toroidal transformer and the secondary winding of the transformer.
- the of the primary winding the voltage induced in the transformer leaves in the shorted Secondary winding to flow a current at the appropriate Selection of the corresponding parameters for heating the Wire leads to the desired annealing temperature.
- Annealing temperatures can be achieved in the free atmosphere will lead to unwanted surface changes, at least the part of the annealing line on which these temperatures are applied covered with protective gas. That's why before winding up a quick cooling required to outside the annealing range To prevent surface changes and also in the Wrapping to avoid shrinkage stresses.
- DD 210 621 From DD 210 621 is an annular nozzle for stripping the cooling water known from rolling, whose housing is an incoming Walzgut to funnel - shaped tapered nozzle head has, in the one centrally adjustable in a main body in the longitudinal axis arranged, the Walzgut enclosing and at the free end is provided conically expiring guide piece. Between Nozzle head and guide piece is a cone-shaped annular space formed, which ends in an annular gap, from which an am rear end of the nozzle supplied Abstreifmedium (pressurized water or air) is blown onto the incoming wire. about an adjusting thread between the guide piece and the nozzle head the size of the. Annular gap can be adjusted, and with a lock nut can fix the desired setting.
- Abstreifmedium pressurized water or air
- a similar annular nozzle is known from DE-OS 24 34 109 A1.
- the cooling water flows out of a conical spray gap around a hollow truncated cone or funnel-shaped cooling nozzle body around in the form of a hollow cone-shaped beam, against the inlet cone of a wire guide nozzle is directed through which guided the emerging from the cooling nozzle body wire becomes.
- the cooling water enters through a side opening in an annulus, which is in the cone-shaped spray gap continues, and flows through a side housing opening again from.
- the invention is therefore the object of a device for effective cooling of heat-treated wires with low To create space immediately before the short-circuit roll can be arranged and thus the loop resistance minimal affected.
- cooling nozzle By integrating a cooling nozzle with a cooling chamber leaves the cooled wire in a small space to the desired Further processing temperature, such as for winding on a Wire roll, cool.
- a particularly effective cooling can be achieve by the countercurrent process, wherein the cooling medium supplied to the wire against its feed direction becomes.
- the wire runs axially through the cooling nozzle, the a concentric with the wire ring opening, from which Cooling medium, for example water, emulsion or cold air, flows counter to the incoming from the cooling chamber in the nozzle wire. From the cooling chamber, the cooling medium can then escape again or aspirated and reused.
- Cooling medium for example water, emulsion or cold air
- the cooling nozzle with one at one end tapered core and a sleeve with a corresponding Inner cone formed, in which the cone of the core protrudes, so that a cone-shaped annular space is formed, the in an annular gap at the inlet opening of the wire ends.
- the opposite end of this annulus is preferably in a distribution annulus for the cooling medium over, in the radially opens an inlet opening for this medium, resulting in a short length leads.
- the annular gap adjustable by For example, the core formed slidably relative to the sleeve becomes. With the help of a screw thread between core and Sleeve can achieve this easily. To fix the desired Setting one can still have a lock nut on the Provide thread.
- the conical sleeve can expediently form so that their part surrounding the cone tip protrudes into another sleeve, with which it is preferably screwed and which forms the cooling chamber. Through these runs the to be cooled Wire, entering from the opposite side of the cone, through, and the cooling medium flows after leaving the Nozzle against the wire. Through one in the cooling chamber opening outlet can leave it again.
- a threaded connection allowed between core and cooling chamber sleeve expediently an adjustment of the axial length of the cooling chamber, and here, too, can serve a lock nut for fixation.
- the device according to the invention consists of a few, relatively easy to manufacture parts that are easy to compact Assembly unit, which is a highly efficient and in wide range adjustable cooling annealed wires allows.
- a cooling medium suitable liquid or gaseous Media used so that also from this point of view from versatile design options with regard to the application given are.
- the invention contains Cooling device, a nozzle, which by two conical Parts, namely by a trained with an inner cone 4 Conical sleeve 6 and one formed with an outer cone 8 Core 10 and an opening 2 is formed. With a dash-dotted line is a wire 12 indicated, which in the drawing from right to left through the opening 2 passes.
- the outer cone 8 of the core 10 is with a something smaller angle than the inner cone 4 of the conical sleeve 6 is formed, so that between these two cones a conical annulus 14 is formed, which is thinner towards the cone tip, so that its cross-sectional area not only due to the diameter reduction, but also as a result of the thinner lateral surface reduced and that of the large diameter side incoming cooling medium towards the cone tip even stronger is accelerated, whereby the nozzle effect is enhanced.
- cooling medium passes through an inlet port 20 into an annular distribution chamber 22nd a, between a cylindrical portion 24 of the core 10 and a cylindrical bore 26 of the conical sleeve 6 is formed becomes. From this distribution chamber 22, the cooling medium enters the wide end of the annular space 14, in which it due to the accelerated cross-sectional reduction is accelerated and with correspondingly higher speed from the narrow end of the Annular space formed annular gap 3 exits and thereby the opposite the flow direction in the passage opening 2 incoming Wire 12 flows around and effectively cools. The cooling medium passes then into a cooling chamber 28, through which the wire 12th passes through, and leaves the cooling chamber through an outlet opening 30, as the arrow 18 illustrates.
- an insulating sleeve 54 are provided, through which the wire is guided, as shown in Figure 3, in which because of the far-reaching match with figure 1 only a few reference numbers entered are.
- the wire 12 enters the cooling chamber 28 through an inlet opening 32 in an end wall 34 of a cooling chamber sleeve 36 is formed.
- a die 56 are used as shown in FIG.
- the outlet opening 30 is through a lateral opening of the Cooling chamber sleeve 36 is formed.
- the cooling chamber sleeve 36 provided with an internal thread 38, in which the conical sleeve 6 with its inner cone 5 containing Stub 40 is screwed.
- One on this too Threaded locknut 42 allows a fixation of both sleeves 6 and 36 set in one by means of the thread 38 mutual position. In this way can be the axial length of the cooling chamber and thus the residence time of Adjust the wire in this.
- Another adjustment parameter is the conical annulus 14, by more or less deep immersion of the outer cone 8 can be adjusted in the inner cone 4. This happens also with the help of a thread, namely an external thread 44, with which the core 10 in an internal thread 46 of the conical sleeve. 6 is screwed. Again, the desired position can be fix with the help of a lock nut 48.
- the radial inlet and Outlet openings 20 and 30 for the cooling medium expediently formed with threads, in which nipple for Hoses or lines can be screwed.
- a coolant can be e.g. Liquids such as water or suitable Use emulsions that are recycled in a cycle can. But you can also with - optionally cooled - Working with compressed air, the mentioned relaxation effect at the nozzle brings additional cooling. Also at the Invention applied countercurrent principle ensures good efficiency in a small space.
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- 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 Strip Materials And Filament Materials (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zum fortlaufenden Kühlen eines wärmebehandelten Drahtes gemäß dem Oberbegriff des Anspruchs 1 (siehe z.B. SU-A-797814).The invention relates to a device for continuous Cooling a heat-treated wire according to the preamble of claim 1 (see, for example, SU-A-797814).
Wärmebehandlungen sind üblich, um Drähten bei der Herstellung die gewünschten Eigenschaften zu verleihen.Heat treatments are common to manufacture wires to give the desired properties.
Ein hierzu bekanntes Verfahren ist das induktive Glühen, bei welchem der zu behandelnde Draht in einer Kurzschlußschleife durch einen Ringkern-Transformator geführt wird und die Sekundärwicklung des Transformators bildet. Die von der Primärwicklung des Transformators induzierte Spannung läßt in der kurzgeschlossenen Sekundärwicklung einen Strom fließen, der bei geeigneter Wahl der entsprechenden Parameter zur Erwärmung des Drahtes auf die gewünschte Glühtemperatur führt. Da in der Regel Glühtemperaturen erreicht werden, die an freier Atmosphäre zu unerwünschten Oberflächenveränderungen führen, wird zumindest der Teil der Glühstrecke, auf der diese Temperaturen anliegen, mit Schutzgas abgedeckt. Vor dem Aufwickeln ist deshalb eine schnelle Abkühlung erforderlich, um außerhalb des Glühbereiches Oberflächenveränderungen zu verhindern und auch bei der Bewicklung Schrumpfspannungen zu vermeiden.A known method for this purpose is inductive annealing, in which the wire to be treated in a short-circuited loop is passed through a toroidal transformer and the secondary winding of the transformer. The of the primary winding the voltage induced in the transformer leaves in the shorted Secondary winding to flow a current at the appropriate Selection of the corresponding parameters for heating the Wire leads to the desired annealing temperature. As a rule Annealing temperatures can be achieved in the free atmosphere will lead to unwanted surface changes, at least the part of the annealing line on which these temperatures are applied covered with protective gas. That's why before winding up a quick cooling required to outside the annealing range To prevent surface changes and also in the Wrapping to avoid shrinkage stresses.
Bekannte Lösungen sehen hier ein Eintauchen des Drahtes über eine Umlenkrolle in ein Tauchbecken vor (DE-OS 25 46 448). Durch dieses Eintauchen verschieben sich jedoch die Widerstandsverhältnisse in der Schleife, weiterhin wird der Draht durch das Schleppen der Rolle mechanisch belastet.Known solutions see here a dipping of the wire a pulley in a dip tank before (DE-OS 25 46 448). However, this immersion shifts the resistance conditions in the loop, continues to be the wire mechanically loaded by the tow of the roller.
Aus der DD 210 621 ist eine Ringdüse zum Abstreifen des Kühlwassers von Walzgut bekannt, deren Gehäuse einen zum einlaufenden Walzgut zu trichterförmig verjüngten Düsenkopf aufweist, in dem ein zentrisch in einen Grundkörper in Längsachse verstellbar angeordnetes, das Walzgut umschließendes und am freien Ende konisch auslaufendes Führungsstück vorgesehen ist. Zwischen Düsenkopf und Führungsstück wird ein kegelmantelförmiger Ringraum gebildet, der in einem Ringspalt endet, aus welchem ein am rückwärtigen Ende der Düse zugeführtes Abstreifmedium (Druckwasser oder Luft) auf den einlaufenden Draht geblasen wird. Über ein Justiergewinde zwischen Führungsstück und Düsenkopf kann die Größe des. Ringspaltes eingestellt werden, und mit einer Kontermutter läßt sich die gewünschte Einstellung fixieren.From DD 210 621 is an annular nozzle for stripping the cooling water known from rolling, whose housing is an incoming Walzgut to funnel - shaped tapered nozzle head has, in the one centrally adjustable in a main body in the longitudinal axis arranged, the Walzgut enclosing and at the free end is provided conically expiring guide piece. Between Nozzle head and guide piece is a cone-shaped annular space formed, which ends in an annular gap, from which an am rear end of the nozzle supplied Abstreifmedium (pressurized water or air) is blown onto the incoming wire. about an adjusting thread between the guide piece and the nozzle head the size of the. Annular gap can be adjusted, and with a lock nut can fix the desired setting.
Eine ähnliche Ringdüse ist aus der DE-OS 24 34 109 A1 bekannt. Hier strömt das Kühlwasser aus einem kegelförmigen Spritzspalt um einen Hohlkegelstumpf bzw. trichterförmigen Kühldüsenkörper herum in Form eines hohlkegelförmigen Strahles aus, der gegen den Einlaufkegel einer Drahtführungsdüse gerichtet ist, durch welche der aus dem Kühldüsenkörper heraustretende Draht geführt wird. Das Kühlwasser tritt durch eine seitliche Öffnung in einen Ringraum ein, der sich in dem kegelförmigen Spritzspalt fortsetzt, und fließt durch eine seitliche Gehäuseöffnung wieder ab.A similar annular nozzle is known from DE-OS 24 34 109 A1. Here, the cooling water flows out of a conical spray gap around a hollow truncated cone or funnel-shaped cooling nozzle body around in the form of a hollow cone-shaped beam, against the inlet cone of a wire guide nozzle is directed through which guided the emerging from the cooling nozzle body wire becomes. The cooling water enters through a side opening in an annulus, which is in the cone-shaped spray gap continues, and flows through a side housing opening again from.
Schließlich ist es aus der DE-OS 24 29 996 A1 und der EP 0 094 740 B1 bekannt, einen mit Hilfe eines Ziehringes auf eine gewünschte Abmessung gezogenen Draht mit einer unmittelbar hinter dem Ziehring angeordneten Kühleinrichtung abzukühlen, wobei ein gemeinsamer Kühlkreislauf für Ziehring und Draht vorgesehen ist und sowohl der Zufluß wie auch der Abfluß des Kühlmittels radial zur Drahtlaufrichtung erfolgt.Finally, it is known from DE-OS 24 29 996 A1 and the EP 0 094 740 B1, one with the help of a drawing ring on a desired dimension drawn wire with an immediate to cool the cooling device arranged behind the drawing ring, wherein a common cooling circuit for draw ring and wire provided is and both the inflow and the outflow of the coolant takes place radially to the wire running direction.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Einrichtung zum effektiven Kühlen wärmebehandelter Drähte mit geringem Raumbedarf zu schaffen, die unmittelbar vor der Kurzschlußrolle angeordnet werden kann und damit den Schleifenwiderstand minimal beeinflußt. The invention is therefore the object of a device for effective cooling of heat-treated wires with low To create space immediately before the short-circuit roll can be arranged and thus the loop resistance minimal affected.
Diese Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale gelöst. Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.This object is achieved by the features specified in claim 1 solved. Further developments of the invention are in the subclaims characterized.
Durch die Integration einer Kühldüse mit einer Kühlkammer läßt sich der gekühlte Draht auf kleinem Raum auf die gewünschte Weiterverarbeitungstemperatur, etwa zum Aufwickeln auf eine Drahtrolle, abkühlen. Eine besonders wirksame Kühlung läßt sich durch das Gegenstromverfahren erreichen, bei welchem das Kühlmedium dem Draht entgegen dessen Vorschubrichtung zugeführt wird. Der Draht läuft hierbei axial durch die Kühldüse, die eine zum Draht konzentrische Ringöffnung aufweist, aus welcher Kühlmedium, beispielsweise Wasser, Emulsion oder kalte Luft, dem aus der Kühlkammer in die Düse einlaufenden Draht entgegenströmt. Aus der Kühlkammer kann das Kühlmedium dann wieder austreten oder abgesaugt und wieder verwendet werden.By integrating a cooling nozzle with a cooling chamber leaves the cooled wire in a small space to the desired Further processing temperature, such as for winding on a Wire roll, cool. A particularly effective cooling can be achieve by the countercurrent process, wherein the cooling medium supplied to the wire against its feed direction becomes. The wire runs axially through the cooling nozzle, the a concentric with the wire ring opening, from which Cooling medium, for example water, emulsion or cold air, flows counter to the incoming from the cooling chamber in the nozzle wire. From the cooling chamber, the cooling medium can then escape again or aspirated and reused.
Zweckmäßigerweise wird die Kühldüse mit einem an einem Ende konisch zulaufenden Kern und einer Hülse mit einem entsprechenden Innenkonus ausgebildet, in welchen der Konus des Kerns hineinragt, so daß ein konusmantelförmiger Ringraum entsteht, der in einem Ringspalt an der Einlauföffnung des Drahtes endet. Das entgegengesetzte Ende dieses Ringraums geht vorzugsweise in einen Verteilungsringraum für das Kühlmedium über, in den radial eine Einlaßöffnung für dieses Medium mündet, was zu einer kurzen Baulänge führt. Wählt man den Konuswinkel der Konushülse etwas größer als den Konuswinkel des Kerns, so wird die Manteldicke des konusförmigen Ringraums zur Konusspitze hin geringer und das eingeströmte Kühlmedium entsprechend der Querschnittsverringerung beschleunigt: im Falle eines gasförmigen Mediums tritt dabei zusätzlich ein Kompressionseffekt auf, der beim Entspannen des aus dem Ringspalt austretenden Mediums zu einer Abkühlung führt, die der Drahtkühlung zugute kommt.Conveniently, the cooling nozzle with one at one end tapered core and a sleeve with a corresponding Inner cone formed, in which the cone of the core protrudes, so that a cone-shaped annular space is formed, the in an annular gap at the inlet opening of the wire ends. The opposite end of this annulus is preferably in a distribution annulus for the cooling medium over, in the radially opens an inlet opening for this medium, resulting in a short length leads. If you choose the cone angle of the conical sleeve slightly larger than the cone angle of the core, so is the cladding thickness the cone-shaped annular space towards the cone tip towards less and the inflowing cooling medium corresponding to the cross-sectional reduction accelerated: in the case of a gaseous medium occurs in addition to a compression effect on the Relax the emerging from the annular gap medium to a Cooling leads, which benefits the wire cooling.
Zweckmäßigerweise macht man den Ringspalt einstellbar, indem beispielsweise der Kern gegenüber der Hülse verschiebbar ausgebildet wird. Mit Hilfe eines Schraubgewindes zwischen Kern und Hülse läßt sich dies leicht erreichen. Zur Fixierung der gewünschten Einstellung kann man noch eine Kontermutter auf dem Gewinde vorsehen.Appropriately, makes the annular gap adjustable by For example, the core formed slidably relative to the sleeve becomes. With the help of a screw thread between core and Sleeve can achieve this easily. To fix the desired Setting one can still have a lock nut on the Provide thread.
Die Konushülse läßt sich zweckmäßigerweise so ausbilden, daß ihr die Konusspitze umgebender Teil in eine weitere Hülse hineinragt, mit welcher sie vorzugsweise verschraubbar ist und welche die Kühlkammer bildet. Durch diese läuft der zu kühlende Draht, von der dem Konus gegenüberliegenden Seite her eintretend, hindurch, und das Kühlmedium strömt nach Verlassen der Düse dem Draht entgegen hinein. Durch eine in die Kühlkammer mündende Auslaßöffnung kann es sie wieder verlassen. Eine Gewindeverbindung zwischen Kern und Kühlkammerhülse erlaubt zweckmäßigerweise eine Einstellung der axialen Länge der Kühlkammer, und auch hier kann eine Kontermutter zur Fixierung dienen.The conical sleeve can expediently form so that their part surrounding the cone tip protrudes into another sleeve, with which it is preferably screwed and which forms the cooling chamber. Through these runs the to be cooled Wire, entering from the opposite side of the cone, through, and the cooling medium flows after leaving the Nozzle against the wire. Through one in the cooling chamber opening outlet can leave it again. A threaded connection allowed between core and cooling chamber sleeve expediently an adjustment of the axial length of the cooling chamber, and here, too, can serve a lock nut for fixation.
Die erfindungsgemäße Einrichtung besteht aus wenigen, relativ leicht herstellbaren Teilen, die sich einfach zu einer kompakten Einheit montieren lassen, die eine höchst effiziente und in weitem Bereich einstellbare Kühlung geglühter Drähte ermöglicht. Als Kühlmedium können geeignete flüssige oder gasförmige Medien verwendet werden, so daß auch von diesem Gesichtspunkt aus vielseitige Gestaltungsmöglichkeiten hinsichtlich der Anwendung gegeben sind.The device according to the invention consists of a few, relatively easy to manufacture parts that are easy to compact Assembly unit, which is a highly efficient and in wide range adjustable cooling annealed wires allows. As a cooling medium suitable liquid or gaseous Media used so that also from this point of view from versatile design options with regard to the application given are.
Die Erfindung sei nun anhand'der Darstellungen eines Ausführungsbeispiels näher erläutert. Es zeigen:
- Fig. 1
- eine Schnittansicht eines Ausführungsbeispiels der erfindungsgemäßen Kühleinrichtung; und
- Fig. 2
- eine auseinandergezogene Darstellung zur besseren Veranschaulichung der Einzelteile eines Ausführungsbeispiels der erfindungsgemäßen Einrichtung.
- Fig. 3
- eine Variante der in Fig. 1 gezeigten Kühleinrichtung.
- Fig. 1
- a sectional view of an embodiment of the cooling device according to the invention; and
- Fig. 2
- an exploded view for better illustration of the individual parts of an embodiment of the device according to the invention.
- Fig. 3
- a variant of the cooling device shown in Fig. 1.
Wie die Figuren 1 und 2 erkennen lassen, enthält die erfindungsgemäße
Kühleinrichtung eine Düse, welche durch zwei konische
Teile, nämlich durch eine mit einem Innenkonus 4 ausgebildete
Konushülse 6 und einen mit einem Außenkonus 8 ausgebildeten
Kern 10 und einer Öffnung 2 gebildet wird. Mit einer
strichpunktierten Linie ist ein Draht 12 angedeutet, welcher
in der Zeichnung von rechts nach links durch die Öffnung 2 hindurchläuft.
Der Außenkonus 8 des Kerns 10 ist mit einem etwas
kleineren Winkel als der Innenkonus 4 der Konushülse 6 ausgebildet,
so daß zwischen diesen beiden Konussen ein konischer Ringraum
14 gebildet wird, der zur Konusspitze hin dünner wird, so daß
sich seine Querschnittsfläche nicht nur infolge der Durchmesserverringerung,
sondern auch infolge der dünner werdenden Mantelfläche
verringert und das von der großen Durchmesserseite
her einströmende Kühlmedium zur Konusspitze hin noch stärker
beschleunigt wird, wodurch der Düseneffekt verstärkt wird.As can be seen from FIGS. 1 and 2, the invention contains
Cooling device, a nozzle, which by two conical
Parts, namely by a trained with an
Das durch Pfeile 16, 18 symbolisierte Kühlmedium tritt durch
eine Einlaßöffnung 20 in eine ringförmige Verteilungskammer 22
ein, die zwischen einem zylinderförmigen Abschnitt 24 des Kerns
10 und einer zylindrischen Bohrung 26 der Konushülse 6 gebildet
wird. Aus dieser Verteilungskammer 22 tritt das Kühlmedium in
das weite Ende des Ringraums 14 ein, in welchem es infolge der
erläuterten Querschnittsverringerung beschleunigt wird und mit
entsprechend höherer Geschwindigkeit aus dem am engen Ende des
Ringraums gebildeten Ringspalt 3 austritt und dabei den entgegen
der Strömungsrichtung in die Durchtrittsöffnung 2 einlaufenden
Draht 12 umströmt und effektiv kühlt. Das Kühlmedium gelangt
dann in eine Kühlkammer 28, durch welche der Draht 12
hindurchläuft, und verläßt die Kühlkammer durch eine Auslaßöffnung
30, wie es der Pfeil 18 veranschaulicht. Zur elektrischen
Isolierung des Drahtes 12 gegen die Metallteile der Kühleinrichtung
kann in der axialen Bohrung des Kerns 10 eine Isolierhülse
54 vorgesehen werden, durch die der Draht geführt wird,
wie dies Figur 3 zeigt, in welcher wegen der weitgehenden Übereinstimmung
mit Figur 1 nur wenige Bezugsziffern eingetragen
sind.The symbolized by
Der Draht 12 tritt in die Kühlkammer 28 durch eine Eintrittsöffnung
32 ein, die in einer Endwand 34 einer Kühlkammerhülse
36 ausgebildet ist. In ein dort vorgesehenes Gewinde 52 kann
gemäß Fig. 3 gewünschtenfalls ein Ziehstein 56 eingesetzt werden.
Die Auslaßöffnung 30 wird durch eine seitliche Öffnung der
Kühlkammerhülse 36 gebildet. Auf der gegenüberliegenden Seite
ist die Kühlkammerhülse 36 mit einem Innengewinde 38 versehen,
in welches die Konushülse 6 mit einem ihren Innenkonus 5 beinhaltenden
Stutzen 40 eingeschraubt ist. Eine ebenfalls auf diesem
Gewinde sitzende Kontermutter 42 erlaubt eine Fixierung der
beiden Hülsen 6 und 36 in einer mit Hilfe des Gewindes 38 eingestellten
gegenseitigen Position. Auf diese Weise läßt sich
die axiale Länge der Kühlkammer und damit die Verweilzeit des
Drahtes in dieser einstellen.The
Ein weiterer Einstellparameter ist der kegelförmige Ringraum
14, der durch mehr oder weniger tiefes Eintauchen des Außenkonus
8 in den Innenkonus 4 eingestellt werden kann. Dies erfolgt
ebenfalls mit Hilfe eines Gewindes, nämlich einem Außengewinde
44, mit dem der Kern 10 in ein Innengewinde 46 der Konushülse 6
eingeschraubt ist. Auch hier läßt sich die gewünschte Position
mit Hilfe einer Kontermutter 48 fixieren.Another adjustment parameter is the
Im dargestellten Ausführungsbeispiel ist sowohl das äußere Ende
des Kerns 10 mit einem Anschlußgewindeflansch 50 als auch das
äußere Ende der Kühlkammerhülse 36 mit einem Anschlußgewinde 52
zur Montage der Kühleinrichtung am Einsatzort bzw. zur Aufnahme
des Ziehsteins 56 versehen. Ebenso sind die radialen Einlaßund
Auslaßöffnungen 20 bzw. 30 für das Kühlmedium zweckmäßigerweise
mit Gewinden ausgebildet, in welche Anschlußnippel für
Schläuche oder Leitungen eingeschraubt werden können. Als Kühlmittel
lassen sich z.B. Flüssigkeiten wie Wasser oder geeignete
Emulsionen verwenden, die in einem Kreislauf zurückgeführt werden
können. Man kann jedoch auch mit - gegebenenfalls gekühlter
- Druckluft arbeiten, wobei der erwähnte Entspannungseffekt
an der Düse noch zusätzliche Kühlung bringt. Auch das bei der
Erfindung angewandte Gegenstromprinzip sorgt für gute Effizienz
auf kleinem Raum.In the illustrated embodiment, both the outer end
the core 10 with a threaded
Man kann gewünschtenfalls auch zwei oder mehrere Kühldüsen hintereinander anordnen, wenn z.B. dicke Drähte nicht in einer Stufe ausreichend gekühlt werden können oder wenn eine langsamere Abkühlung in kleineren Temperaturschritten gewünscht wird. In solchen Fällen würden dann mehrere Einheiten gemäß Fig. 1 oder 3 - in Drahtlaufrichtung gesehen - nacheinander vorgesehen und gegebenenfalls mit Kühlmittel unterschiedlicher Temperatur gespeist.If desired, it is also possible to use two or more cooling nozzles in succession arrange, if e.g. thick wires not in one Stage can be sufficiently cooled or if a slower Cooling in smaller temperature steps desired becomes. In such cases, then several units would be according to Fig. 1 or 3 - as seen in the wire running direction - successively provided and optionally with coolant different Temperature fed.
Claims (11)
- Cooling apparatus for heat-treated wire with a coolant nozzle which has an axial through opening for the wire and an annular gap (3) disposed concentrically around the through opening and through which coolant feed to the nozzle by way of a lateral inlet opening flows onto the wire, wherein a cooling chamber (28) is provided with an axial inlet and outlet opening (32, 33 respectively) for the wire (12) each of which is formed by a sleeve, referred to below as a cooling chamber sleeve (36), which is closed at one end by a wall (34) penetrated by the wire inlet opening (32) and wherein the cooling chamber (28) is constructed with a lateral outlet opening (30) for the coolant, characterised in that a closure plug, referred to below as a conical sleeve (6), is screwed into the cooling chamber sheath at its other end and has passing through it a wire outlet opening (33) which, when viewed from the cooling chamber (28), initially widens conically outwards forming an inner cone (4) and then merges into a cylindrical bore (26), and that a core (10) with a bore passing through the core is screwed into this bore (26) and with a conical end, referred to below as the outer cone (8), protrudes into the inner cone (4) of the conical sleeve (6) forming an annular space (14) which ends in the annular gap (3).
- Cooling apparatus as claimed in Claim 1, characterised in that the length of the cooling chamber (28) can be adjusted with the aid of a screw thread (38, 40) and can be fixed by means of a lock nut (42).
- Cooling apparatus as claimed in Claim 2, characterised in that the screw thread (38, 40) forms the connection between the core (10) and the conical sleeve (6).
- Cooling apparatus as claimed in Claim 1, characterised in that the annular space (14) with a conical contour between the outer cone (8) and inner cone (4) merges into a distribution chamber (22) with a cylindrical contour between the core (10) and the cylindrical bore (26) of the conical sleeve (6) and that the inlet opening (20) for the cooling medium opens radially into the distribution chamber (22).
- Cooling apparatus as claimed in Claim 1, characterised in that the cone angle of the conical sleeve (6) is somewhat greater than the cone angle of the core (10).
- Cooling apparatus as claimed in Claim 1, characterised in that the core (10) can be adjusted relative to the sleeve (6) for adjustment of the cross-section of the annular space (14).
- Cooling apparatus as claimed in Claim 6, characterised in that the adjusted position set with the aid of a screw thread (44, 46) between the core (10) and the conical sleeve (6) can be fixed by means of a lock nut (48).
- Cooling apparatus as claimed in Claim 7, characterised in that the thread (44, 46) is disposed in the region of the core (10) and conical sleeve (6) facing away from the cone (4, 8).
- Cooling apparatus as claimed in any one of the preceding claims, characterised in that the bore which passes through the core (10) is lined with an insulating sleeve (54) through which the wire (12) is guided.
- Cooling apparatus as claimed in Claim 1, characterised by a drawing die disposed in the region of the inlet opening (32) of the cooling chamber (28).
- Cooling apparatus as claimed in any one of the preceding claims, characterised in that a plurality of individual cooling apparatus units are disposed one behind the other in the wire running direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10058369 | 2000-11-24 | ||
| DE10058369A DE10058369C1 (en) | 2000-11-24 | 2000-11-24 | Cooling device used for cooling heat treated wires comprises a cooling chamber with an inlet and an outlet for the wire |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1208924A2 EP1208924A2 (en) | 2002-05-29 |
| EP1208924A3 EP1208924A3 (en) | 2003-08-13 |
| EP1208924B1 true EP1208924B1 (en) | 2005-02-09 |
Family
ID=7664513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01127074A Expired - Lifetime EP1208924B1 (en) | 2000-11-24 | 2001-11-14 | Wire cooling device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1208924B1 (en) |
| AT (1) | ATE288800T1 (en) |
| DE (2) | DE10058369C1 (en) |
| ES (1) | ES2236117T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009071A (en) * | 2010-06-28 | 2011-04-13 | 芜湖新兴铸管有限责任公司 | Thermo mechanical control process (TMCP) cooling device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10215118C1 (en) * | 2002-04-05 | 2003-06-12 | Rainer Menge | Device for cooling heat-treated wires comprises a cooling nozzle having a nozzle body in the form of a central part containing a wire feeding channel, the nozzle and coolant feeding channels and removing channels |
| DE102004034939B4 (en) * | 2004-07-20 | 2015-11-26 | Maschinenfabrik Niehoff Gmbh & Co. Kg | Method and arrangement and computer program with program code means and computer program product for determining a control variable for a power input to a wire in a conductive heat treatment of the wire |
| CN101618405B (en) * | 2009-07-21 | 2013-02-27 | 南通宝钢钢铁有限公司 | Adjustable ring-shaped spiral-flow type cooling method |
| AT515603B1 (en) * | 2014-04-07 | 2023-10-15 | P & F Maschb Gmbh | Wire drawing machine and method for producing a drawn wire |
| DE102020205249B3 (en) * | 2020-04-24 | 2021-10-07 | Kocks Technik Gmbh & Co Kg | Device for cooling long products |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2434109A1 (en) * | 1973-07-23 | 1975-02-06 | Meccanica Di Precisione Spa | Liquid treatment system for travelling wire - has concentric spray nozzles for lubricating the wire |
| DE2604595C3 (en) * | 1976-02-06 | 1978-07-20 | Kloeckner-Werke Ag, 4100 Duisburg | Cooling pipe for cooling wire rod |
| SU797814A2 (en) * | 1979-02-28 | 1981-01-23 | Орловский сталепрокатный завод им.50-летия Октября | Device for cleaning and cooling wire |
| US4329861A (en) * | 1980-08-21 | 1982-05-18 | Orion Machinery And Engineering Corporation | Method and apparatus for drawing and cooling wire |
| EP0094740B1 (en) * | 1982-05-18 | 1986-08-27 | Hi-Draw Machinery Limited | Apparatus for cooling, drying and cleaning elongate material |
| DD210621A1 (en) * | 1982-10-14 | 1984-06-20 | Thaelmann Schwermaschbau Veb | RINGDUESE FOR STRIPPING THE COOL WATER FROM THE ROLL |
| DD288989A5 (en) * | 1989-11-16 | 1991-04-18 | ����������@�����������@���Kk�� | KUEHLROHR |
| DE4009074A1 (en) * | 1990-03-21 | 1991-09-26 | Telefonbau & Normalzeit Gmbh | Operational data input into telecommunication exchanges or terminals - involves conversion between formats of data received or transmitted over wireless link to remote operation unit |
-
2000
- 2000-11-24 DE DE10058369A patent/DE10058369C1/en not_active Expired - Fee Related
-
2001
- 2001-11-14 ES ES01127074T patent/ES2236117T3/en not_active Expired - Lifetime
- 2001-11-14 DE DE50105293T patent/DE50105293D1/en not_active Expired - Lifetime
- 2001-11-14 AT AT01127074T patent/ATE288800T1/en not_active IP Right Cessation
- 2001-11-14 EP EP01127074A patent/EP1208924B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009071A (en) * | 2010-06-28 | 2011-04-13 | 芜湖新兴铸管有限责任公司 | Thermo mechanical control process (TMCP) cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2236117T3 (en) | 2005-07-16 |
| EP1208924A2 (en) | 2002-05-29 |
| ATE288800T1 (en) | 2005-02-15 |
| DE50105293D1 (en) | 2005-03-17 |
| DE10058369C1 (en) | 2002-02-14 |
| EP1208924A3 (en) | 2003-08-13 |
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