EP1223398A1 - Hubbalkenförderer für einen Durchlaufofen zum Erwärmen von Aluminiumbarren - Google Patents

Hubbalkenförderer für einen Durchlaufofen zum Erwärmen von Aluminiumbarren Download PDF

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Publication number
EP1223398A1
EP1223398A1 EP01890343A EP01890343A EP1223398A1 EP 1223398 A1 EP1223398 A1 EP 1223398A1 EP 01890343 A EP01890343 A EP 01890343A EP 01890343 A EP01890343 A EP 01890343A EP 1223398 A1 EP1223398 A1 EP 1223398A1
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Prior art keywords
support
beams
bars
frame body
bar
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EP01890343A
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German (de)
French (fr)
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EP1223398B1 (en
Inventor
Günther Kraus
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Hertwich Engineering GmbH
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Hertwich Engineering GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/02—Skids or tracks for heavy objects
    • F27D3/022—Skids
    • F27D3/024—Details of skids, e.g. riders

Definitions

  • the invention relates to a walking beam conveyor for a continuous furnace for heating aluminum bars with walking and fixed beams that run across wear bar supports that can be swiveled to a limited extent.
  • Aluminum ingots are used to improve ductility subjected to casting, predominantly in Continuous furnaces equipped with walking beam conveyors for the aluminum bars are.
  • These walking beam conveyors have fixed beams running in the conveying direction and between these fixed beams parallel walking beams, which are like the fixed beams Bar supports to accommodate the aluminum bars running across the bars wear.
  • the aluminum bars are replaced by the Lifting beam lifted from the bar supports of the fixed beam and onto the in Direction of conveyance the next row of supports of the fixed beams, before the walking beams below the aluminum bars in the starting position for the next one Funding step can be moved back. Through unavoidable relative movements it comes between the aluminum bars and the bar-fixed bar supports to aluminum deposits on the bar supports.
  • the bar supports have already been proposed not to be rigidly connected to the beams, but on the beams to be swiveled to a limited extent, namely transversely to the longitudinal direction of the beam, see above that the bar supports in their swivel position to the respective course of the Align aluminum bars.
  • the associated reduction in Relative movement leads in connection with a more even load to delay the deposition processes.
  • the bar supports the deposits must be removed from the beams not be sanded in the confines of the furnace space, so that overall noticeable improvements in the maintenance of these walking beam conveyors result, although the replacement of the ingot pads continues with a large one Workload remains connected.
  • the invention is therefore based on the object of a walking beam conveyor for a continuous furnace for heating aluminum bars at the entrance Described kind so that the due to aluminum deposits Maintenance work required on the ingot supports is much easier can be.
  • the invention solves the problem in that the bar supports have insert pieces for the aluminum bars that can be inserted into recesses.
  • the Bar supports consist of a frame body, one on the corresponding Beams pivotally mounted over a cylindrical rolling surface Supporting body for a support piece enclosed by the frame body.
  • the load on the support pieces by the aluminum bars is immediately on the support body and transfer it from this to the beam.
  • the support body is pivotally mounted on the beam via a cylindrical rolling surface, the support body resembles the support piece on the respective bar profile while avoiding edge pressures, resulting in an even pressure load of the support piece.
  • This support piece is put together enclosed with the support body from the frame body, which is thus a lateral Support for the support piece with the effect that a form stability flow of the material of the support piece impairing the support piece is prevented against the frame body when a material with correspondingly lower strength properties are used.
  • the frame body secures the position of the support piece and the support body compared to the bar and is therefore immovable on the bar set.
  • the frame body can use the bars laterally Form cross-game side cheeks with those running across the bars Elongated holes for receiving mounting bolts passing through the beams are provided.
  • These mounting bolts result in a simple, detachable Connection between the frame bodies and the beams.
  • it must be for a pivotability of the frame body in the scope of the rolling motion of the support body on the beam. This is due to the side Game between the side panels of the frame body and the beam as well by providing elongated holes in the side cheeks to accommodate the Bracket bolt reached.
  • the walking beam conveyor shown consists in a conventional manner alternately arranged, parallel walking beam 1 and fixed beam 2, the saddle-shaped Wear bar supports 3 for aluminum bars 4 that have a roller table 5 across the beams 1, 2 through an oven door 6 into the continuous furnace 7 be promoted.
  • the walking beam 1 which is raised with the help of supports 8 and can be adjusted in the conveying direction 9
  • the walking beam 1 are then below the Aluminum bars 4 conveyed back to the starting position to a new one Funding step to be able to begin.
  • the saddle-shaped bar supports 3 of the lifting and fixed beams 1, 2 have 2 and 3, a support piece 10 for the aluminum bars 4, that is inserted into a recess 11 of the ingot support 3.
  • the recess 11 is obtained by a frame body 12, which overlaps the respective beams 1 and 2 with side cheeks 13.
  • Sidewalls 13 are elongated holes 14 extending transversely to the beams 1 and 2, respectively provided for receiving a mounting bolt 15 which the respective beam 1 or 2 and the bar support 3 opposite the bar 1 or 2 axially.
  • the weight load of the support pieces 10 by the aluminum bars 4 is not over the frame body 12 according to the embodiment, but removed via a support body 16 on the beam 1 or 2.
  • This Support body 16 forms a cylindrical rolling surface 17, over which it is on the supports respective bars 1 or 2.
  • the support body 16 can therefore cross to Bars 1 and 2 are pivoted to adjust the support piece 10 on the respective course of the aluminum bar 4 to be accommodated. Since the support body 16 with the support piece 10 together from Frame body 12 is enclosed, the frame body 12 with the support body 16 can be pivoted. This is through the elongated holes 14 for reached the mounting bolt 15 provided that between the Sidewalls 13 and beams 1 and 2 have sufficient movement is available.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

The conveyor bar supports (3) have support members (10) for the aluminum bars. The support members can be inserted into the recesses (11). Each bar support comprises a frame body (12) for the support body (16) swivel mount on the beams (1,2). The beams frame body (12) form side cheeks (13) that overlap with clearance forming longitudinal holes (14) for mounting bolts (15).

Description

Die Erfindung bezieht sich auf einen Hubbalkenförderer für einen Durchlaufofen zum Erwärmen von Aluminiumbarren mit Hub- und Festbalken, die quer zu den Balken begrenzt verschwenkbare Barrenauflagen tragen.The invention relates to a walking beam conveyor for a continuous furnace for heating aluminum bars with walking and fixed beams that run across wear bar supports that can be swiveled to a limited extent.

Aluminiumbarren werden zur Verbesserung der Verformbarkeit nach dem Gießen einer Wärmebehandlung unterworfen, und zwar vorwiegend in Durchlauföfen, die mit Hubbalkenförderern für die Aluminiumbarren ausgerüstet sind. Diese Hubbalkenförderer weisen in Förderrichtung verlaufende Festbalken und zwischen diesen Festbalken parallele Hubbalken auf, die wie die Festbalken Barrenauflagen zur Aufnahme der quer zu den Balken verlaufenden Aluminiumbarren tragen. Bei jedem Förderschritt werden die Aluminiumbarren durch die Hubbalken von den Barrenauflagen der Festbalken abgehoben und auf die in Förderrichtung nächste Auflagenreihe der Festbalken abgelegt, bevor die Hubbalken unterhalb der Aluminiumbarren in die Ausgangslage für den nächsten Förderschritt zurückbewegt werden. Durch unvermeidbare Relativbewegungen zwischen den Aluminiumbarren und den balkenfesten Barrenauflagen kommt es zu Alumiumablagerungen auf den Barrenauflagen. Diese Ablagerungen - zumeist niedrig schmelzende Eutektika, die durch Seigerungsvorgänge beim Gießen an die Barrenoberfläche gelangen - werden durch Oxidationsvorgänge hart und bedingen wegen ihrer ungleichmäßigen Verteilung Vertiefungen in der Oberfläche der bei der Behandlungstemperatur vergleichsweise weichen Aluminiumbarren. Zur Vermeidung von Oberflächenbeeinträchtigungen müssen die Ablagerungen auf den Barrenauflagen abgeschliffen werden, was bei der Enge des Ofenraumes und der Vielzahl der Barrenauflagen mit einem großen Arbeitsaufwand verbunden ist.Aluminum ingots are used to improve ductility subjected to casting, predominantly in Continuous furnaces equipped with walking beam conveyors for the aluminum bars are. These walking beam conveyors have fixed beams running in the conveying direction and between these fixed beams parallel walking beams, which are like the fixed beams Bar supports to accommodate the aluminum bars running across the bars wear. With each step of the conveyance, the aluminum bars are replaced by the Lifting beam lifted from the bar supports of the fixed beam and onto the in Direction of conveyance the next row of supports of the fixed beams, before the walking beams below the aluminum bars in the starting position for the next one Funding step can be moved back. Through unavoidable relative movements it comes between the aluminum bars and the bar-fixed bar supports to aluminum deposits on the bar supports. These deposits - mostly low-melting eutectics caused by segregation processes during casting get to the bar surface - become hard through oxidation processes and cause depressions in the surface due to their uneven distribution the aluminum bars, which are comparatively soft at the treatment temperature. To avoid surface damage, the deposits be ground down on the ingot supports, which is what is Furnace space and the large number of ingot supports with a large amount of work connected is.

Zur Behebung dieser Nachteile wurde bereits vorgeschlagen, die Barrenauflagen nicht starr mit den Balken zu verbinden, sondern auf den Balken begrenzt verschwenkbar zu lagern, und zwar quer zur Balkenlängsrichtung, so daß sich die Barrenauflagen in ihrer Schwenklage an den jeweiligen Verlauf der Alumiumbarren angleichen können. Die damit verbundene Verringerung der Relativbewegung führt im Zusammenhang mit einer gleichmäßigeren Belastung zu einer Verzögerung der Ablagerungsvorgänge. Da außerdem die Barrenauflagen von den Balken abgenommen werden können, müssen die Ablagerungen nicht in der Enge des Ofenraumes abgeschliffen werden, so daß sich insgesamt merkliche Verbesserungen hinsichtlich der Wartung dieser Hubbalkenförderer ergeben, obwohl das Auswechseln der Barrenauflagen weiterhin mit einem großen Arbeitsaufwand verbunden bleibt.To overcome these disadvantages, the bar supports have already been proposed not to be rigidly connected to the beams, but on the beams to be swiveled to a limited extent, namely transversely to the longitudinal direction of the beam, see above that the bar supports in their swivel position to the respective course of the Align aluminum bars. The associated reduction in Relative movement leads in connection with a more even load to delay the deposition processes. Since also the bar supports the deposits must be removed from the beams not be sanded in the confines of the furnace space, so that overall noticeable improvements in the maintenance of these walking beam conveyors result, although the replacement of the ingot pads continues with a large one Workload remains connected.

Versuche, das Anhaften von Aluminium auf den Barrenauflagen durch eine geeignete Werkstoffauswahl zu unterbinden, haben zu Aluminiumlegierungen mit Manganzusatz für die Barrenauflagen geführt, was jedoch bei den für die Aluminiumbarren erforderlichen Behandlungstemperaturen aufgrund der dann verringerten Festigkeit des Auflagenwerkstoffes die Gefahr einer unzulässigen Verformung der Barrenauflagen unter den auftretenden Belastungen mit sich bringt.Attempts to adhere aluminum to the ingot supports To prevent a suitable material selection have to aluminum alloys with manganese additive for the bar supports, which however for the Aluminum ingots then required treatment temperatures due to that reduced strength of the support material the risk of an impermissible Deformation of the bar supports under the loads that occur brings.

Schließlich ist es bei wassergekühlten Stützrohren für Hubbalken eines Hubherdofens bekannt (DE 2 020 318 B), gegen das gekühlte Stützrohr Sättel niederzuspannen, und zwar mit Hilfe von Halterungen für Verschleißteile, die bei der Verwendung des Stützrohres als Hubbalken eine hochwarmfeste Auflage der Halterung bilden, aber auch in Längsnuten der Halterungen eingeschoben werden können, wenn das Stützrohr als Gleitschiene dient. In beiden Einsatzfällen ergeben die hochwarmfesten Verschleißteile eine Auflage für das Behandlungsgut, die im wesentlichen starr mit dem Stützrohr verbunden ist und sich daher nicht für die Aufnahme von Aluminiumbarren eignet.After all, it is one with water-cooled support tubes for walking beams Lift hearth known (DE 2 020 318 B), against the cooled support tube saddles to clamp down, with the help of brackets for wearing parts, which the use of the support tube as a walking beam a high-temperature-resistant edition of Form bracket, but can also be inserted into the longitudinal grooves of the brackets can, if the support tube serves as a slide rail. In both cases the heat-resistant wear parts result in a support for the material to be treated, which is essentially rigidly connected to the support tube and therefore not suitable for holding aluminum bars.

Der Erfindung liegt somit die Aufgabe zugrunde, einen Hubbalkenförderer für einen Durchlaufofen zum Erwärmen von Aluminiumbarren der eingangs geschilderten Art so auszugestalten, daß die zufolge von Aluminiumablagerungen auf den Barrenauflagen erforderlichen Wartungsarbeiten wesentlich erleichtert werden können.The invention is therefore based on the object of a walking beam conveyor for a continuous furnace for heating aluminum bars at the entrance Described kind so that the due to aluminum deposits Maintenance work required on the ingot supports is much easier can be.

Die Erfindung löst die gestellte Aufgabe dadurch, daß die Barrenauflagen in Aussparungen einsetzbare Auflagestücke für die Aluminiumbarren aufweisen.The invention solves the problem in that the bar supports have insert pieces for the aluminum bars that can be inserted into recesses.

Durch das Vorsehen gesonderter Auflagestücke für die Aluminiumbarren wird zunächst eine vorteilhafte Voraussetzung für den Einsatz von Sonderwerkstoffen geschaffen, weil dieser Werkstoffeinsatz auf die Auflagestücke beschränkt werden kann, die in den Aussparungen der Barrenauflagen eine entsprechende Halterung und Abstützung erfahren, um auch bei den erforderlichen Behandlungstemperaturen selbst nicht ausreichend feste Werkstoffe einsetzen zu können, ohne die notwendige Formstabilität der Barrenauflagen zu gefährden. Dazu kommt, daß wegen der im Vergleich zur gesamten Barrenauflage vergleichsweise geringen Masse des Auflagestückes nicht nur teure Sonderwerkstoffe wirtschaftlich verwendet werden können, sondern auch der gegebenenfalls notwendige Austausch der Auflagestücke erheblich erleichtert wird.By providing separate support pieces for the aluminum bars will initially be an advantageous prerequisite for the use of special materials created because this use of materials is limited to the support pieces can be a corresponding in the recesses of the ingot supports Experienced bracket and support to also at the required treatment temperatures not being able to use sufficiently strong materials, without endangering the necessary form stability of the bar supports. To comes that because of the comparative to the total ingot support low mass of the support piece not only costly special materials economically can be used, but also the possibly necessary Exchange of the support pieces is made considerably easier.

Besonders einfache Konstruktionsverhältnisse ergeben sich, wenn die Barrenauflagen aus je einem Rahmenkörper bestehen, der einen auf dem zugehörigen Balken über eine zylindrische Wälzfläche verschwenkbar gelagerten Stützkörper für ein vom Rahmenkörper umschlossenes Auflagestück aufnimmt. Die Belastung der Auflagestücke durch die Aluminiumbarren wird unmittelbar auf den Stützkörper und von diesem auf den Balken übertragen. Da der Stützkörper auf dem Balken über eine zylindrische Wälzfläche verschwenkbar gelagert ist, gleicht sich der Stützkörper mit dem Auflagestück an den jeweiligen Barrenverlauf unter Vermeidung von Kantenpressungen an, was eine gleichmäßige Druckbelastung des Auflagestückes mit sich bringt. Dieses Auflagestück wird zusammen mit dem Stützkörper vom Rahmenkörper umschlossen, der somit eine seitliche Abstützung für das Auflagestück mit der Wirkung bietet, daß ein die Formstabilität des Auflagestückes beeinträchtigendes Fließen des Werkstoffes des Auflagestückes gegen den Rahmenkörper hin unterbunden wird, wenn ein Werkstoff mit entsprechend geringeren Festigkeitseigenschaften zum Einsatz kommt.Particularly simple design relationships result when the Bar supports consist of a frame body, one on the corresponding Beams pivotally mounted over a cylindrical rolling surface Supporting body for a support piece enclosed by the frame body. The load on the support pieces by the aluminum bars is immediately on the support body and transfer it from this to the beam. Because the support body is pivotally mounted on the beam via a cylindrical rolling surface, the support body resembles the support piece on the respective bar profile while avoiding edge pressures, resulting in an even pressure load of the support piece. This support piece is put together enclosed with the support body from the frame body, which is thus a lateral Support for the support piece with the effect that a form stability flow of the material of the support piece impairing the support piece is prevented against the frame body when a material with correspondingly lower strength properties are used.

Der Rahmenkörper sichert die Lage des Auflagestückes und des Stützkörpers gegenüber dem Balken und ist daher auf dem Balken unverschiebbar festzulegen. Zu diesem Zweck können die Rahmenkörper die Balken seitlich mit Spiel übergreifende Seitenwangen bilden, die mit quer zu den Balken verlaufenden Langlöchern zur Aufnahme von die Balken durchsetzenden Halterungsbolzen versehen sind. Über diese Halterungsbolzen ergibt sich eine einfache, lösbare Verbindung zwischen den Rahmenkörpern und den Balken. Es muß jedoch für eine Verschwenkbarkeit des Rahmenkörpers im Umfang der Abwälzbewegung des Stützkörpers auf dem Balken gesorgt werden. Dies wird durch das seitliche Spiel zwischen den Seitenwangen des Rahmenkörpers und dem Balken sowie durch das Vorsehen von Langlöchern in den Seitenwangen zur Aufnahme der Halterungsbolzen erreicht.The frame body secures the position of the support piece and the support body compared to the bar and is therefore immovable on the bar set. For this purpose, the frame body can use the bars laterally Form cross-game side cheeks with those running across the bars Elongated holes for receiving mounting bolts passing through the beams are provided. These mounting bolts result in a simple, detachable Connection between the frame bodies and the beams. However, it must be for a pivotability of the frame body in the scope of the rolling motion of the support body on the beam. This is due to the side Game between the side panels of the frame body and the beam as well by providing elongated holes in the side cheeks to accommodate the Bracket bolt reached.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen

Fig. 1
einen erfindungsgemäßen Hubbalkenförderer für einen Durchlaufofen zum Erwärmen von Aluminiumbarren ausschnittsweise in einem schematischen Längsschnitt durch den Durchlaufofen,
Fig. 2
eine Barrenauflage eines Hub- bzw. Festbalkens in einem zur Balkenlängsachse senkrechten Schnitt in einem größeren Maßstab und
Fig. 3
einen Schnitt nach der Linie III-III der Fig. 2.
The subject matter of the invention is shown in the drawing, for example. Show it
Fig. 1
a walking beam conveyor according to the invention for a continuous furnace for heating aluminum bars in sections in a schematic longitudinal section through the continuous furnace,
Fig. 2
a bar support of a lifting or fixed beam in a section perpendicular to the longitudinal axis of the beam on a larger scale and
Fig. 3
a section along the line III-III of Fig. 2nd

Der dargestellte Hubbalkenförderer besteht in herkömmlicher Weise aus abwechselnd angeordneten, parallelen Hubbalken 1 und Festbalken 2, die sattelförmige Barrenauflagen 3 für Aluminiumbarren 4 tragen, die über einen Rollgang 5 quer zu den Balken 1, 2 durch eine Ofentüre 6 in den Durchlaufofen 7 gefördert werden. Über die Hubbalken 1, die mit Hilfe von Stützen 8 angehoben und in Förderrichtung 9 verstellt werden können, werden die Aluminiumbarren 4 einerseits vom Rollgang 5 und anderseits von den Barrenauflagen 3 der Festbalken 2 angehoben und um einen Förderschritt weitergefördert, bevor sie durch ein Absenken der Hubbalken auf die jeweils nächste Reihe der Barrenauflagen 3 der Festbalken 2 abgesetzt werden. Die Hubbalken 1 werden dann unterhalb der Aluminiumbarren 4 in die Ausgangsstellung zurückgefördert, um einen neuen Förderschritt beginnen zu können.The walking beam conveyor shown consists in a conventional manner alternately arranged, parallel walking beam 1 and fixed beam 2, the saddle-shaped Wear bar supports 3 for aluminum bars 4 that have a roller table 5 across the beams 1, 2 through an oven door 6 into the continuous furnace 7 be promoted. About the walking beam 1, which is raised with the help of supports 8 and can be adjusted in the conveying direction 9, the aluminum bars 4 on the one hand from the roller table 5 and on the other hand from the bar supports 3 of the fixed beams 2 raised and advanced by one step before going through a Lowering the walking beam to the next row of bar supports 3 each Fixed beams 2 are discontinued. The walking beam 1 are then below the Aluminum bars 4 conveyed back to the starting position to a new one Funding step to be able to begin.

Die sattelförmigen Barrenauflagen 3 der Hub- und Festbalken 1, 2 weisen gemäß den Fig. 2 und 3 ein Auflagestück 10 für die Aluminiumbarren 4 auf, das in eine Aussparung 11 der Barrenauflage 3 eingesetzt ist. Gemäß dem Ausführungsbeispiel wird die Aussparung 11 durch einen Rahmenkörper 12 erhalten, der den jeweiligen Balken 1 bzw. 2 mit Seitenwangen 13 übergreift. In diesen Seitenwangen 13 sind quer zu den Balken 1 bzw. 2 verlaufende Langlöcher 14 zur Aufnahme eines Halterungsbolzens 15 vorgesehen, der den jeweiligen Balken 1 bzw. 2 durchsetzt und die Barrenauflage 3 gegenüber dem Balken 1 bzw. 2 axial festlegt. Die Gewichtsbelastung der Auflagestücke 10 durch die Aluminiumbarren 4 wird gemäß dem Ausführungsbeispiel nicht über den Rahmenkörper 12, sondern über einen Stützkörper 16 auf den Balken 1 bzw. 2 abgetragen. Dieser Stützkörper 16 bildet eine zylindrische Wälzfläche 17, über die er sich auf dem jeweiligen Balken 1 bzw. 2 abstützt. Der Stützkörper 16 kann demnach quer zum Balken 1 bzw. 2 verschwenkt werden, um eine Anpassung des Auflagestückes 10 an den jeweiligen Verlauf des aufzunehmenden Aluminiumbarrens 4 zu ermöglichen. Da der Stützkörper 16 mit dem Auflagestück 10 gemeinsam vom Rahmenkörper 12 umschlossen wird, muß der Rahmenkörper 12 mit dem Stützkörper 16 verschwenkt werden können. Dies wird durch die Langlöcher 14 für den Halterungsbolzen 15 unter der Voraussetzung erreicht, daß zwischen den Seitenwangen 13 und den Balken 1 bzw. 2 ein ausreichendes Bewegungsspiel vorhanden ist.The saddle-shaped bar supports 3 of the lifting and fixed beams 1, 2 have 2 and 3, a support piece 10 for the aluminum bars 4, that is inserted into a recess 11 of the ingot support 3. According to the embodiment the recess 11 is obtained by a frame body 12, which overlaps the respective beams 1 and 2 with side cheeks 13. In these Sidewalls 13 are elongated holes 14 extending transversely to the beams 1 and 2, respectively provided for receiving a mounting bolt 15 which the respective beam 1 or 2 and the bar support 3 opposite the bar 1 or 2 axially. The weight load of the support pieces 10 by the aluminum bars 4 is not over the frame body 12 according to the embodiment, but removed via a support body 16 on the beam 1 or 2. This Support body 16 forms a cylindrical rolling surface 17, over which it is on the supports respective bars 1 or 2. The support body 16 can therefore cross to Bars 1 and 2 are pivoted to adjust the support piece 10 on the respective course of the aluminum bar 4 to be accommodated. Since the support body 16 with the support piece 10 together from Frame body 12 is enclosed, the frame body 12 with the support body 16 can be pivoted. This is through the elongated holes 14 for reached the mounting bolt 15 provided that between the Sidewalls 13 and beams 1 and 2 have sufficient movement is available.

Aufgrund der gesonderten Auflagestücke 10 der Barrenauflagen 3 können im Auflagebereich der Aluminiumbarren Sonderwerkstoffe wirtschaftlich eingesetzt werden, die das Anhaften von Aluminium weitgehend unterbinden, wie dies beispielsweise für Aluminiumlegierungen mit Manganzusatz bekannt ist. Trotz dieses vergleichsweise weichen Werkstoffes kann bei den erforderlichen Behandlungstemperaturen eine ausreichende Formstabilität der Barrenauflagen 3 sichergestellt werden, weil sich die Auflagestücke 10 am Rahmenkörper 12 abstützen, der wie die Stützkörper 16 aus einem hitzebeständigen, austenitischen Stahlguß bestehen kann. Damit können die Intervalle für erforderliche Wartungsarbeiten erheblich vergrößert werden. Müssen trotzdem Ablagerungen von den Barrenauflagen 3 entfernt werden, so sind lediglich die Auflagestücke 10 auszutauschen und abzuschleifen, weil ja nur diese Auflagestücke 10 mit den Aluminiumbarren 4 in Berührung kommen. Wegen des einfachen Lösens des Rahmenkörpers 12 durch ein Entfernen des Halterungsbolzens 15 ist das Auswechseln der Auflagestücke 10 mit einem vergleichsweise geringen Arbeitsaufwand trotz der beengten Raumverhältnisse im Durchlaufofen 7 möglich.Due to the separate support pieces 10 of the ingot supports 3 can In the contact area of the aluminum bars, special materials are economical are used that largely prevent the adhesion of aluminum, such as this is known for example for aluminum alloys with manganese addition. Despite this comparatively soft material, the required Treatment temperatures an adequate dimensional stability of the bar supports 3 can be ensured because the support pieces 10 on the frame body 12 support the like the support body 16 from a heat-resistant, austenitic Cast steel can exist. This allows the intervals for required maintenance work be significantly enlarged. Still need deposits from the Ingot supports 3 are removed, so only the support pieces 10 are to be replaced and grind off, because only these support pieces 10 with the aluminum bars 4 come into contact. Because of the easy release of the frame body 12 by removing the mounting bolt 15 is the replacement the support pieces 10 with a comparatively small amount of work despite the limited space in the continuous furnace 7 possible.

Claims (3)

Hubbalkenförderer für einen Durchlaufofen zum Erwärmen von Aluminiumbarren mit Hub- und Festbalken, die quer zu den Balken begrenzt verschwenkbare Barrenauflagen tragen, dadurch gekennzeichnet, daß die Barrenauflagen (3) in Aussparungen (11) einsetzbare Auflagestücke (10) für die Aluminiumbarren (4) aufweisen.Walking beam conveyor for a continuous furnace for heating aluminum bars with lifting and fixed bars, which have bar supports that can be pivoted transversely to the bars, characterized in that the bar supports (3) have support pieces (10) for the aluminum bars (4) which can be inserted into recesses (11) , Hubbalkenförderer nach Anspruch 1, dadurch gekennzeichnet, daß die Barrenauflagen (3) aus je einem Rahmenkörper (12) bestehen, der einen auf dem zugehörigen Balken (1, 2) über eine zylindrische Wälzfläche (17) verschwenkbar gelagerten Stützkörper (16) für ein vom Rahmenkörper (12) umschlossenes Auflagestück (10) aufnimmt.Walking beam conveyor according to claim 1, characterized in that the bar supports (3) each consist of a frame body (12) which has a supporting body (16) pivotably mounted on the associated beam (1, 2) via a cylindrical rolling surface (17) for a Frame body (12) encloses the support piece (10). Hubbalkenförderer nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Rahmenkörper (12) die Balken (1, 2) seitlich mit Spiel übergreifende Seitenwangen (13) bilden, die mit quer zu den Balken (1, 2) verlaufenden Langlöchern (14) zur Aufnahme von die Balken (1, 2) durchsetzenden Halterungsbolzen (15) versehen sind.Walking beam conveyor according to claims 1 and 2, characterized in that the frame bodies (12) form the beams (1, 2) laterally with side cheeks (13) which overlap with play and which have elongated holes (14) running transversely to the beams (1, 2). are provided for receiving mounting bolts (15) passing through the beams (1, 2).
EP01890343A 2001-01-15 2001-12-19 Hubbalkenförderer für einen Durchlaufofen zum Erwärmen von Aluminiumbarren Expired - Lifetime EP1223398B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT532001 2001-01-15
AT0005301A AT409670B (en) 2001-01-15 2001-01-15 LIFTING BAR CONVEYOR FOR A CONTINUOUS HOLDER FOR HEATING ALUMINUM BARS

Publications (2)

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EP1223398A1 true EP1223398A1 (en) 2002-07-17
EP1223398B1 EP1223398B1 (en) 2007-05-09

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EP01890343A Expired - Lifetime EP1223398B1 (en) 2001-01-15 2001-12-19 Hubbalkenförderer für einen Durchlaufofen zum Erwärmen von Aluminiumbarren

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US (1) US6634489B2 (en)
EP (1) EP1223398B1 (en)
AT (2) AT409670B (en)
CA (1) CA2368067C (en)
DE (1) DE50112481D1 (en)
DK (1) DK1223398T3 (en)
ES (1) ES2287092T3 (en)
RU (1) RU2224965C2 (en)

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EP3932438A1 (en) * 2020-07-02 2022-01-05 Dentsply IH AB Hydrophilic medical device assembly
CN113714459B (en) * 2021-09-22 2024-03-26 河南中孚技术中心有限公司 Feeding device for aluminum bar processing and furnace returning calcination and construction method
CN115139135A (en) * 2022-07-12 2022-10-04 大冶佳和节能设备有限公司 Aluminum bar heating and separately transporting device

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DE102021003946A1 (en) 2021-07-30 2023-02-02 Neuman Aluminium Austria Gmbh PROCESS FOR HEAT TREATMENT OF METALLIC SEMI-FINISHED PRODUCTS AND HEAT TREATMENT SYSTEM

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ATE362087T1 (en) 2007-06-15
US20020092733A1 (en) 2002-07-18
ATA532001A (en) 2002-02-15
EP1223398B1 (en) 2007-05-09
DK1223398T3 (en) 2007-09-17
DE50112481D1 (en) 2007-06-21
AT409670B (en) 2002-10-25
CA2368067C (en) 2007-11-06
ES2287092T3 (en) 2007-12-16
US6634489B2 (en) 2003-10-21
RU2224965C2 (en) 2004-02-27
CA2368067A1 (en) 2002-07-15

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