EP1208924A2 - Wire cooling device - Google Patents

Wire cooling device Download PDF

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Publication number
EP1208924A2
EP1208924A2 EP01127074A EP01127074A EP1208924A2 EP 1208924 A2 EP1208924 A2 EP 1208924A2 EP 01127074 A EP01127074 A EP 01127074A EP 01127074 A EP01127074 A EP 01127074A EP 1208924 A2 EP1208924 A2 EP 1208924A2
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EP
European Patent Office
Prior art keywords
cone
cooling
wire
cooling device
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.)
Granted
Application number
EP01127074A
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German (de)
French (fr)
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EP1208924A3 (en
EP1208924B1 (en
Inventor
Rainer Dr.-Ing. Menge
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MENGE RAINER DR ING
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MENGE RAINER DR ING
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Publication of EP1208924A2 publication Critical patent/EP1208924A2/en
Publication of EP1208924A3 publication Critical patent/EP1208924A3/en
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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.
  • Heat treatments are common to manufacturing wires to impart the desired properties.
  • a known method for this is inductive annealing, at which the wire to be treated in a short circuit loop is passed through a toroidal transformer and the secondary winding of the transformer.
  • the one from the primary winding the voltage induced by the transformer leaves in the shorted Secondary winding flow a current that is appropriate Selection of the appropriate parameters for heating the Wire leads to the desired annealing temperature.
  • Annealing temperatures can be achieved in a free atmosphere will at least lead to undesirable surface changes the part of the annealing section where these temperatures are present, covered with protective gas. That's why before winding up rapid cooling required to be outside the annealing range To prevent surface changes and also at Avoid wrapping shrinkage.
  • DD 210 621 is an annular nozzle for wiping the cooling water of rolling stock known
  • the housing one to the incoming Rolling material has a funnel-shaped tapered nozzle head, in which is centrally adjustable in a basic body in the longitudinal axis arranged, enclosing the rolling stock and at the free end tapered guide piece is provided.
  • the nozzle head and guide piece become a cone-shaped annular space formed, which ends in an annular gap, from which an am Wiping medium (pressurized water or air) is blown onto the incoming wire.
  • an am Wiping medium pressurized water or air
  • a similar ring nozzle is known from DE-OS 24 34 109 A1.
  • the cooling water flows from 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 which is directed against the inlet cone of a wire guide nozzle is directed through which led the wire emerging from the cooling nozzle body becomes.
  • the cooling water enters through a side opening an annular space, which is in the conical spray gap continues, and flows again through a side opening in the housing from.
  • the invention is therefore based on the object of a device for effective cooling of heat-treated wires with low To create space immediately before the short-circuit role can be arranged and thus the loop resistance minimal affected.
  • cooling nozzle By integrating a cooling nozzle with a cooling chamber the cooled wire to the desired size in a small space Further processing temperature, for example for winding on a Wire roll, cool down.
  • a particularly effective cooling can be by the counterflow method, in which the cooling medium fed to the wire against its direction of advance becomes.
  • the wire runs axially through the cooling nozzle has a ring opening concentric to the wire, from which Cooling medium, for example water, emulsion or cold air, flows against the wire entering the nozzle from the cooling chamber.
  • Cooling medium for example water, emulsion or cold air
  • the cooling nozzle is expediently provided with one end tapered core and a sleeve with a corresponding Inner cone, into which the cone of the core protrudes, so that a cone-shaped annular space is created which ends in an annular gap at the inlet opening of the wire.
  • the opposite end of this annulus preferably goes in a distribution annulus for the cooling medium in the radially opens an inlet opening for this medium, resulting in a short overall length.
  • the shell thickness is slightly larger than the cone angle of the core of the conical annular space to the cone tip less and the inflowing cooling medium according to the reduction in cross section accelerated: in the case of a gaseous medium there is also a compression effect that occurs when Relax the medium emerging from the annular gap to a Cooling leads, which benefits the wire cooling.
  • the annular gap is made adjustable by for example, the core is slidable with respect to the sleeve becomes. With the help of a screw thread between the core and Sleeve can easily achieve this. To fix the desired one You can still use a lock nut on the setting Provide thread.
  • the conical sleeve can expediently be designed such that the part surrounding the cone tip protrudes into another sleeve, with which it is preferably screwable and which forms the cooling chamber.
  • the one to be cooled runs through these Wire entering from the side opposite the cone, through, and the cooling medium flows after leaving the Inject the wire into it. Through one in the cooling chamber outlet opening it 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 also here a lock nut can be used for fixation.
  • the device according to the invention consists of a few, relatively easy-to-manufacture parts that simply become a compact Have unit assembled that is a highly efficient and in adjustable cooling of annealed wires. Suitable liquid or gaseous can be used as the cooling medium Media are 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 Cone sleeve 6 and one with an outer cone 8 Core 10 and an opening 2 is formed. With a dash-dotted line, a wire 12 is indicated, which runs through the opening 2 from right to left in the drawing.
  • the outer cone 8 of the core 10 is something with a smaller angle of the inner cone 4 of the conical sleeve 6, so that a conical annular space between these two cones 14 is formed, which becomes thinner towards the cone tip, so that its cross-sectional area not only due to the reduction in diameter, but also due to the thinning surface area reduced and that from the large diameter side coolant flowing in towards the cone tip is even stronger is accelerated, which increases the nozzle effect.
  • the cooling medium symbolized by arrows 16, 18 passes through an inlet opening 20 into an annular distribution chamber 22 one located between a cylindrical portion 24 of the core 10 and a cylindrical bore 26 of the conical sleeve 6 is formed becomes.
  • the cooling medium enters from this distribution chamber 22 the wide end of the annular space 14, in which it is due to the explained cross-sectional reduction is accelerated and with correspondingly higher speed from the at the narrow end of the Annular space formed 3 emerges and the opposite the flow direction entering the passage opening 2
  • Wire 12 flows around and effectively cools.
  • the cooling medium arrives then into a cooling chamber 28 through which the wire 12 passes through, and leaves the cooling chamber through an outlet opening 30, as illustrated by arrow 18.
  • the wire 12 enters the cooling chamber 28 through an inlet opening 32 a in an end wall 34 of a cooling chamber sleeve 36 is formed.
  • a drawing die 56 can be used if desired.
  • the outlet opening 30 is through a side opening of the Cooling chamber sleeve 36 formed.
  • the cooling chamber sleeve 36 is provided with an internal thread 38, in which the cone sleeve 6 with one containing its inner cone 5 Stub 40 is screwed.
  • Threaded lock nut 42 allows the two sleeves 6 and 36 in one set with the help of the thread 38 mutual position. In this way the axial length of the cooling chamber and thus the residence time of the Adjust the wire in this.
  • Another setting parameter is the conical annular space 14, by more or less deep immersion of the outer cone 8 can be set 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 in.
  • the desired position can also be found here fix with the help of a lock nut 48.
  • the radial inlet and Outlet openings 20 and 30 expediently for the cooling medium formed with threads, in which connection nipple for Hoses or lines can be screwed in.
  • a coolant can e.g. Liquids such as water or suitable Use emulsions that are recycled can.
  • two or more cooling nozzles can also be used in succession order if e.g. thick wires not in one Stage can be cooled sufficiently or if a slower Cooling in smaller temperature steps is required becomes. In such cases, several units would be in accordance Fig. 1 or 3 - seen in the wire running direction - one after the other provided and possibly with different coolant Temperature fed.

Abstract

Cooling device comprises a cooling chamber (28) with an inlet (32) and an outlet (33) for the wire (12). The chamber is formed by a cooling sleeve (36) which is closed at one end by a wall (34) penetrated by the wire inlet. A cone sleeve (6) is screwed onto the other end and is penetrated by the wire outlet. A core (10) is screwed into a cylindrical bore (26) and protrudes into the inner cone of the cone sleeve forming an annular chamber (14). An inlet (20) for the cooling medium opens out into a distribution chamber (22) and the outlet (30) for the cooling medium is formed as a lateral opening of the cooling chamber. Preferred Features: The length of the cooling chamber is adjusted using a screw thread and is fixed using a locking nut.

Description

Die Erfindung betrifft eine Einrichtung zum fortlaufenden Kühlen eines wärmebehandelten Drahtes.The invention relates to a device for continuous Cooling a heat-treated wire.

Wärmebehandlungen sind üblich, um Drähten bei der Herstellung die gewünschten Eigenschaften zu verleihen.Heat treatments are common to manufacturing wires to impart 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 is inductive annealing, at which the wire to be treated in a short circuit loop is passed through a toroidal transformer and the secondary winding of the transformer. The one from the primary winding the voltage induced by the transformer leaves in the shorted Secondary winding flow a current that is appropriate Selection of the appropriate parameters for heating the Wire leads to the desired annealing temperature. Because usually Annealing temperatures can be achieved in a free atmosphere will at least lead to undesirable surface changes the part of the annealing section where these temperatures are present, covered with protective gas. That's why before winding up rapid cooling required to be outside the annealing range To prevent surface changes and also at Avoid wrapping shrinkage.

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 overlook the immersion of the wire a pulley in a plunge pool before (DE-OS 25 46 448). However, this immersion shifts the resistance conditions in the loop, the wire continues mechanically loaded by dragging the roll.

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.DD 210 621 is an annular nozzle for wiping the cooling water of rolling stock known, the housing one to the incoming Rolling material has a funnel-shaped tapered nozzle head, in which is centrally adjustable in a basic body in the longitudinal axis arranged, enclosing the rolling stock and at the free end tapered guide piece is provided. Between The nozzle head and guide piece become a cone-shaped annular space formed, which ends in an annular gap, from which an am Wiping medium (pressurized water or air) is blown onto the incoming wire. about an adjustment thread between the guide piece and the nozzle head the size of the annular gap can be set and with a lock nut can be used to 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 ring nozzle is known from DE-OS 24 34 109 A1. Here the cooling water flows from 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 which is directed against the inlet cone of a wire guide nozzle is directed through which led the wire emerging from the cooling nozzle body becomes. The cooling water enters through a side opening an annular space, which is in the conical spray gap continues, and flows again through a side opening in the housing 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 from DE-OS 24 29 996 A1 and EP 0 094 740 B1 discloses one with the aid of a pull ring a desired dimension drawn wire with an immediate to cool down the cooling device arranged behind the drawing ring, a common cooling circuit is provided for the drawing ring and wire and both the inflow and the outflow of the coolant radial 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 based on the object of a device for effective cooling of heat-treated wires with low To create space immediately before the short-circuit role 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 the cooled wire to the desired size in a small space Further processing temperature, for example for winding on a Wire roll, cool down. A particularly effective cooling can be by the counterflow method, in which the cooling medium fed to the wire against its direction of advance becomes. The wire runs axially through the cooling nozzle has a ring opening concentric to the wire, from which Cooling medium, for example water, emulsion or cold air, flows against the wire entering the nozzle from the cooling chamber. The cooling medium can then emerge again from the cooling chamber or vacuumed 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 dies 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.The cooling nozzle is expediently provided with one end tapered core and a sleeve with a corresponding Inner cone, into which the cone of the core protrudes, so that a cone-shaped annular space is created which ends in an annular gap at the inlet opening of the wire. The opposite end of this annulus preferably goes in a distribution annulus for the cooling medium in the radially opens an inlet opening for this medium, resulting in a short overall length. You choose the cone angle of the cone sleeve the shell thickness is slightly larger than the cone angle of the core of the conical annular space to the cone tip less and the inflowing cooling medium according to the reduction in cross section accelerated: in the case of a gaseous medium there is also a compression effect that occurs when Relax the medium emerging from the annular gap 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.Expediently, the annular gap is made adjustable by for example, the core is slidable with respect to the sleeve becomes. With the help of a screw thread between the core and Sleeve can easily achieve this. To fix the desired one You can still use a lock nut on the setting 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 be designed such that the part surrounding the cone tip protrudes into another sleeve, with which it is preferably screwable and which forms the cooling chamber. The one to be cooled runs through these Wire entering from the side opposite the cone, through, and the cooling medium flows after leaving the Inject the wire into it. Through one in the cooling chamber outlet opening it 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 also here a lock nut can be used 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 simply become a compact Have unit assembled that is a highly efficient and in adjustable cooling of annealed wires. Suitable liquid or gaseous can be used as the cooling medium Media are 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 der erfindungsgemäßen Kühleinrichtung; und
Fig. 2
eine auseinandergezogene Darstellung zur besseren Veranschaulichung der Einzelteile der erfindungsgemäßen Einrichtung.
Fig. 3
eine Variante der in Fig. 1 gezeigten Kühleinrichtung.
The invention will now be explained in more detail with reference to the illustrations of an exemplary embodiment. Show it:
Fig. 1
a sectional view of the cooling device according to the invention; and
Fig. 2
an exploded view to better illustrate the individual parts 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 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 inner cone 4 Cone sleeve 6 and one with an outer cone 8 Core 10 and an opening 2 is formed. With a dash-dotted line, a wire 12 is indicated, which runs through the opening 2 from right to left in the drawing. The outer cone 8 of the core 10 is something with a smaller angle of the inner cone 4 of the conical sleeve 6, so that a conical annular space between these two cones 14 is formed, which becomes thinner towards the cone tip, so that its cross-sectional area not only due to the reduction in diameter, but also due to the thinning surface area reduced and that from the large diameter side coolant flowing in towards the cone tip is even stronger is accelerated, which increases the nozzle effect.

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 cooling medium symbolized by arrows 16, 18 passes through an inlet opening 20 into an annular distribution chamber 22 one located between a cylindrical portion 24 of the core 10 and a cylindrical bore 26 of the conical sleeve 6 is formed becomes. The cooling medium enters from this distribution chamber 22 the wide end of the annular space 14, in which it is due to the explained cross-sectional reduction is accelerated and with correspondingly higher speed from the at the narrow end of the Annular space formed 3 emerges and the opposite the flow direction entering the passage opening 2 Wire 12 flows around and effectively cools. The cooling medium arrives then into a cooling chamber 28 through which the wire 12 passes through, and leaves the cooling chamber through an outlet opening 30, as illustrated by arrow 18. For electrical Insulation of the wire 12 against the metal parts of the cooling device can in the axial bore of the core 10, an insulating sleeve 54 through which the wire is passed, as shown in Figure 3, in which because of the broad agreement only a few reference numbers are entered with FIG are.

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 wire 12 enters the cooling chamber 28 through an inlet opening 32 a in an end wall 34 of a cooling chamber sleeve 36 is formed. In a thread 52 provided there can 3 a drawing die 56 can be used if desired. The outlet opening 30 is through a side opening of the Cooling chamber sleeve 36 formed. On the opposite side the cooling chamber sleeve 36 is provided with an internal thread 38, in which the cone sleeve 6 with one containing its inner cone 5 Stub 40 is screwed. One also on this one Threaded lock nut 42 allows the two sleeves 6 and 36 in one set with the help of the thread 38 mutual position. In this way the axial length of the cooling chamber and thus the residence time of the Adjust the wire in this.

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 setting parameter is the conical annular space 14, by more or less deep immersion of the outer cone 8 can be set 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 in. The desired position can also be found here fix with the help of a lock nut 48.

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 Einlaß-und 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 connecting thread flange 50 as well outer end of the cooling chamber sleeve 36 with a connecting thread 52 for mounting the cooling device on site or for recording of the die 56 provided. Likewise, the radial inlet and Outlet openings 20 and 30 expediently for the cooling medium formed with threads, in which connection nipple for Hoses or lines can be screwed in. As a coolant can e.g. Liquids such as water or suitable Use emulsions that are recycled can. However, you can also with - if necessary, cooled - Work compressed air, whereby the relaxation effect mentioned brings additional cooling to the nozzle. That too at Invention countercurrent principle ensures good efficiency in a small space.

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, two or more cooling nozzles can also be used in succession order if e.g. thick wires not in one Stage can be cooled sufficiently or if a slower Cooling in smaller temperature steps is required becomes. In such cases, several units would be in accordance Fig. 1 or 3 - seen in the wire running direction - one after the other provided and possibly with different coolant Temperature fed.

Claims (11)

Kühleinrichtung für wärmebehandelten Draht mit einer Kühlmitteldüse, die eine axiale Durchtrittsöffnung für den Draht und einen konzentrisch um die Durchtrittsöffnung angeordneten Ringspalt aufweist, durch den der Düse über eine seitliche Einlaßöffnung zugeführtes Kühlmittel auf den Draht strömt,
dadurch gekennzeichnet daß eine Kühlkammer (28) mit je einer axialen Eintritts- und Austrittsöffnung (32 bzw. 33) für den Draht (12) vorgesehen ist, die durch eine Hülse (Kühlkammerhülse 36) gebildet wird, welche an einem Ende durch eine von der Drahteintrittsöffnung (32) durchbrochene Wand (34) verschlossen ist und in die an ihrem anderen Ende ein Abschlußstopfen (Konushülse 6) hineingeschraubt ist, der von der Drahtaustrittsöffnung (33) durchsetzt ist, die sich von der Kühlkammer (28) her gesehen nach außen zunächst konisch erweitert (Innenkonus 4) und dann in eine zylindrische Bohrung (26) übergeht, daß in diese Bohrung ein Kern (10) eingeschraubt ist, der mit einem kegelförmigen Ende (Außenkonus 8) in den Innenkonus (4) der Konushülse (6) unter Bildung eines in dem Ringspalt (3) endenden Ringraumes (14) hineinragt, und daß die Kühlkammer (28) mit einer seitlichen Auslaßöffnung (30) für das Kühlmittel ausgebildet ist. Cooling device for heat-treated wire with a coolant nozzle which has an axial passage opening for the wire and an annular gap arranged concentrically around the passage opening, through which coolant supplied to the nozzle flows onto the wire via a lateral inlet opening,
characterized that a cooling chamber (28), each with an axial inlet and outlet opening (32 or 33) for the wire (12) is provided, which is formed by a sleeve (cooling chamber sleeve 36), which is at one end by one of the wire inlet opening ( 32) perforated wall (34) is closed and into which an end plug (conical sleeve 6) is screwed at its other end, which is penetrated by the wire outlet opening (33) which, viewed from the cooling chamber (28), initially widens conically outwards (Inner cone 4) and then passes into a cylindrical bore (26), that a core (10) is screwed into this bore, which projects with a conical end (outer cone 8) into the inner cone (4) of the conical sleeve (6) to form an annular space (14) ending in the annular gap (3), and that the cooling chamber (28) is formed with a lateral outlet opening (30) for the coolant. Kühleinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Länge der Kühlkammer (28) mit Hilfe eines Schraubgewindes (38,40) einstellbar und mittels einer Kontermutter (42) fixierbar ist. Cooling device according to claim 1, characterized in that the length of the cooling chamber (28) is adjustable with the aid of a screw thread (38, 40) and can be fixed by means of a lock nut (42). Kühleinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Schraubgewinde (38,40) die Verbindung zwischen Kern (10) und Konushülse (6) bildet.Cooling device according to claim 2, characterized in that the screw thread (38, 40) forms the connection between the core (10) and the conical sleeve (6). Kühleinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der konusmantelförmige Ringraum (14) zwischen Außenkonus (8) und Innenkonus (4) in eine zylindermantelförmige Verteilungskammer (22) zwischen dem Kern (10) und der zylindrischen Bohrung (26) der Konushülse (6) übergeht und daß die Einlaßöffnung (20) für das Kühlmedium radial in die Verteilungskammer (22) mündet.Cooling device according to claim 1, characterized in that the cone-shaped annular space (14) between the outer cone (8) and the inner cone (4) into a cylindrical jacket-shaped distribution chamber (22) between the core (10) and the cylindrical bore (26) of the conical sleeve (6) passes and that the inlet opening (20) for the cooling medium opens radially into the distribution chamber (22). Kühleinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Konuswinkel der Konushülse (6) etwas größer als der Konuswinkel des Kerns (10) ist.Cooling device according to claim 1, characterized in that the cone angle of the cone sleeve (6) is somewhat larger than the cone angle of the core (10). Kühleinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Kern (10) gegenüber der Hülse (6) zur Justierung des Ringraumquerschnitts (14) einstellbar ist.Cooling device according to claim 1, characterized in that the core (10) is adjustable relative to the sleeve (6) for adjusting the cross-sectional area (14). Kühleinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die mit Hilfe eines Schraubgewindes (44,46) zwischen Kern (10) und Konushülse (6) eingestellte Justierposition mittels einer Kontermutter (48) fixierbar ist.Cooling device according to claim 6, characterized in that the adjustment position set by means of a screw thread (44, 46) between the core (10) and the cone sleeve (6) can be fixed by means of a lock nut (48). Kühleinrichtung nach Anspruch 7, dadurch gekennzeichnet, daß das Gewinde (44,46) im dem Konus (4,8) abgewandten Bereich von Kern (10) und Konushülse (6) angeordnet ist.Cooling device according to claim 7, characterized in that the thread (44, 46) is arranged in the region of the core (10) and the cone sleeve (6) facing away from the cone (4,8). Kühleinrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die den Kern (10) durchsetzende Bohrung mit einer Isolierhülse (54) ausgekleidet ist, durch welche der Draht (12) geführt wird.Cooling device according to one of the preceding claims, characterized in that the bore passing through the core (10) is lined with an insulating sleeve (54) through which the wire (12) is guided. Kühleinrichtung nach Anspruch 1, gekennzeichnet durch einen im Bereich der Eintrittsöffnung (32) der Kühlkammer (28) angeordneten Ziehstein (56).Cooling device according to claim 1, characterized by a drawing die (56) arranged in the region of the inlet opening (32) of the cooling chamber (28). Kühleinrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß mehrere einzelne Kühleinrichtungs-Einheiten in Drahtlaufrichtung gesehen hintereinander angeordnet sind.Cooling device according to one of the preceding claims, characterized in that a plurality of individual cooling device units are arranged one behind the other as seen in the wire running direction.
EP01127074A 2000-11-24 2001-11-14 Wire cooling device Expired - Lifetime EP1208924B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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
DE10058369 2000-11-24

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EP1208924A2 true EP1208924A2 (en) 2002-05-29
EP1208924A3 EP1208924A3 (en) 2003-08-13
EP1208924B1 EP1208924B1 (en) 2005-02-09

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AT (1) ATE288800T1 (en)
DE (2) DE10058369C1 (en)
ES (1) ES2236117T3 (en)

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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
CN113546970A (en) * 2020-04-24 2021-10-26 德国考科斯技术有限公司 Device for cooling elongated products

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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
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
AT515603B1 (en) * 2014-04-07 2023-10-15 P & F Maschb Gmbh Wire drawing machine and method for producing a drawn wire

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Publication number Priority date Publication date Assignee Title
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
CN113546970A (en) * 2020-04-24 2021-10-26 德国考科斯技术有限公司 Device for cooling elongated products
CN113546970B (en) * 2020-04-24 2023-09-26 德国考科斯技术有限公司 Device for cooling elongated products

Also Published As

Publication number Publication date
EP1208924A3 (en) 2003-08-13
DE50105293D1 (en) 2005-03-17
EP1208924B1 (en) 2005-02-09
ATE288800T1 (en) 2005-02-15
ES2236117T3 (en) 2005-07-16
DE10058369C1 (en) 2002-02-14

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