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EP0350432A1 - Apparatus for semi-continuous spray compacting - Google Patents

Apparatus for semi-continuous spray compacting Download PDF

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Publication number
EP0350432A1
EP0350432A1 EP89730145A EP89730145A EP0350432A1 EP 0350432 A1 EP0350432 A1 EP 0350432A1 EP 89730145 A EP89730145 A EP 89730145A EP 89730145 A EP89730145 A EP 89730145A EP 0350432 A1 EP0350432 A1 EP 0350432A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
spray
carrier
compacting
nozzle arrangement
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
EP89730145A
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German (de)
French (fr)
Other versions
EP0350432B1 (en
Inventor
Klaus Schwarz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0350432A1 publication Critical patent/EP0350432A1/en
Application granted granted Critical
Publication of EP0350432B1 publication Critical patent/EP0350432B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/123—Spraying molten metal

Definitions

  • the invention relates to a device for the semi-continuous spray compacting of objects according to the preamble of claim 1.
  • liquid metal flows from a pan into a so-called distributor, the fill level of which is kept constant in order to maintain a uniform metal throughput.
  • the distributor has an outflow nozzle with a preselected cross section, which projects into an atomization device.
  • This atomization device consists, for example, of an oscillating annulus in which numerous holes are made at an angle of inclination so that the metal jet entering the annulus centrally is hit by inert atomizing gas outside the annulus (German patent application P 38 11 077.6-24).
  • the steel particles accelerated by the gas flow hit a carrier material with a high speed impulse and predominantly in a not completely solidified, doughy state, i.e. a state that lies between the liquidus and solidus temperature, and form the spray material there.
  • the carrier material is guided beneath the spray jet, the length of the spray material being determined by the length of time by which it is passed.
  • the width of the sprayed material for example in the case of flat products, can be influenced by the oscillation of the gas nozzle about an axis parallel to the direction of advance of the carrier or the carrier surface.
  • the length of the sprayed material or the width is generally determined by the spatial conditions, i.e. limited by the dimensions of the spray chamber itself, and this means that after the manufacture of an article, the spraying process must be interrupted by closing the nozzle arrangement and the metal inflow.
  • the outflow nozzle must therefore only be made ready for a subsequent further spraying operation, and difficulties can arise here, for example blockages of the nozzle.
  • the object of the invention is therefore to provide a device with which semi-continuous spray compacting is possible, i.e. utilization of all or at least a larger part of the contents of the oven, pan or distributor.
  • the basic idea of the invention is that the possibility of oscillating the nozzle is used to apply sprayed metal to several support surfaces in succession, but without interrupting the atomization itself, and in this way to produce a large number of objects in succession in accordance with the content of the storage vessel .
  • the support surfaces are either arranged side by side so that their lateral distance corresponds to the swivel angle of the nozzle arrangement, i.e. a carrier surface is first sprayed in one pivot position of the nozzle and then after the completion of this object the nozzle arrangement is pivoted onto the further carrier surface. It is also possible to arrange these carrier surfaces in a revolver-like manner, so that spray compaction on several carrier surfaces can be achieved in succession if the carrier surfaces are rotated accordingly.
  • the distributor is denoted by 1, and in this there is the molten metal 2.
  • the distributor 1 has a spout 3 in the usual way, to which a guide nozzle 4 is connected.
  • the atomizing device 5 is arranged in a ring around this guide nozzle 4, details of the illustration being omitted here, since these are known from the prior art.
  • the supply line for inert gas is designated 6 as the atomizing medium.
  • the pouring jet 7 is atomized by this atomizing medium to form a spray jet 9, which occurs on the carrier 11, which is passed below the nozzle, and generates the spray material 10 here.
  • the nozzle arrangement can be pivoted about an oscillation axis perpendicular to the central axis 13 and parallel to the feed direction, namely with an angle ⁇ and this angle ⁇ depends on the lateral distance between the carrier surfaces 11 arranged next to one another.
  • the pendulum area of the spray cone is designated here with ⁇ .

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nozzles (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The invention relates to an apparatus for semicontinuous spray-compacting of objects by means of a liquid metal-spraying, pivotable nozzle arrangement and a shaping carrier surface which is moveable in rotation and/or oscillation under the spray cone of the nozzle. To create an apparatus which allows semicontinuous spray compacting, i.e. utilisation of the total or at least a major part of the furnace, ladle or distributor capacity, it is proposed that a plurality of carrier surfaces (11) are arranged spaced-apart side-by-side under the spray cone of the nozzle (4) for movement one after the other and that the pivoting angle of the nozzle arrangement is adjustable in such a way that it corresponds to the mutual lateral spacing of the carrier surfaces. <IMAGE>

Description

Die Erfindung betrifft eine Einrichtung zum semikontinuierlichen Sprühkompaktieren von Gegenständen gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for the semi-continuous spray compacting of objects according to the preamble of claim 1.

Beim Sprühkompaktieren fließt flüssiges Metall aus einer Pfanne in einen sogenannten Verteiler, dessen Füllhöhe zur Aufrechterhaltung eines gleichmäßigen Metalldurchsatzes konstant gehalten wird. Der Verteiler besitzt eine Ausflußdüse mit vorgewähltem Querschnitt, die in eine Verdüsungseinrichtung hineinragt.When spray compacting, liquid metal flows from a pan into a so-called distributor, the fill level of which is kept constant in order to maintain a uniform metal throughput. The distributor has an outflow nozzle with a preselected cross section, which projects into an atomization device.

Diese Verdüsungseinrichtung besteht bspw. aus einem oszillierenden Kreisring, in dem zahlreiche Bohrungen unter einem Neigungswinkel so angebracht sind, daß der zentrisch in den Kreisring eintretende Metallstrahl außerhalb des Kreisringes von inertem Zerstäubungsgas getroffen wird (deutsche Patentanmeldung P 38 11 077.6-24).This atomization device consists, for example, of an oscillating annulus in which numerous holes are made at an angle of inclination so that the metal jet entering the annulus centrally is hit by inert atomizing gas outside the annulus (German patent application P 38 11 077.6-24).

Die durch den Gasstrom beschleunigten Stahlpartikel treffen mit hohem Geschwindigkeitsimpuls und überwiegend in nicht ganz erstarrtem, teigigen Zustand, also einem Zustand, der zwischen der Liquidus- und Solidustemperatur liegt, auf ein Trägermaterial auf und bilden dort das Sprühgut. Das Trägermaterial wird unterhalb des Sprühstrahles vorbeigeführt, wobei die Länge des Sprühgutes durch die Zeitdauer der Vorbeiführung bestimmt wird. Die Breite des Sprühgutes, bspw. bei Flachprodukten, kann durch die Oszillation der Gasdüse um eine Achse parallel zur Vorschubrichtung des Trägers bzw. der Trägerfläche beeinflußt werden.The steel particles accelerated by the gas flow hit a carrier material with a high speed impulse and predominantly in a not completely solidified, doughy state, i.e. a state that lies between the liquidus and solidus temperature, and form the spray material there. The carrier material is guided beneath the spray jet, the length of the spray material being determined by the length of time by which it is passed. The width of the sprayed material, for example in the case of flat products, can be influenced by the oscillation of the gas nozzle about an axis parallel to the direction of advance of the carrier or the carrier surface.

Eine weitere Düsenanordnung mit einer oszillierenden Düse ist aus der EP-A 0 225 732 bekannt.Another nozzle arrangement with an oscillating nozzle is known from EP-A 0 225 732.

Bei den bisher bekannten Einrichtungen zum Sprühkompaktieren wird die Länge des Sprühgutes bzw. auch die Breite im allgemeinen durch die räumlichen Gegebenheiten, d.h. durch die Abmessungen der Sprühkammer selbst, begrenzt und dies führt dazu, daß nach dem Herstellen eines Gegenstandes der Sprühvorgang durch Verschließen der Düsenanordnung und des Metallzuflusses unterbrochen werden muß. Für einen nachfolgenden weiteren Sprühvorgang ist daher die Ausflußdüse erst wieder betriebsbereit zu machen, und hier können Schwierigkeiten auftreten, bspw. Verstopfungen der Düse.In the previously known devices for spray compacting, the length of the sprayed material or the width is generally determined by the spatial conditions, i.e. limited by the dimensions of the spray chamber itself, and this means that after the manufacture of an article, the spraying process must be interrupted by closing the nozzle arrangement and the metal inflow. The outflow nozzle must therefore only be made ready for a subsequent further spraying operation, and difficulties can arise here, for example blockages of the nozzle.

Aufgabe der Erfindung ist es daher, eine Einrichtung zu schaffen, mit der ein semikontinuierliches Sprühkompaktieren möglich ist, d.h. eine Ausnutzung des gesamten oder zumindest eines größeren Teiles des Ofen-, Pfannen- bzw. Verteilerinhaltes.The object of the invention is therefore to provide a device with which semi-continuous spray compacting is possible, i.e. utilization of all or at least a larger part of the contents of the oven, pan or distributor.

Gelöst wird diese Aufgabe erfindungsgemäß mit den Merkmalen im Kennzeichen des Anspruchs 1.This object is achieved according to the invention with the features in the characterizing part of claim 1.

Eine vorzugsweise Ausgestaltung ergibt sich aus dem Anspruch 2.A preferred embodiment results from claim 2.

Der grundlegende Gedanke der Erfindung besteht darin, daß die Möglichkeit der Oszillation der Düse dazu ausgenutzt wird, zeitlich hintereinander, aber ohne Unterbrechung der Verdüsung selbst, mehrere Trägerflächen mit versprühtem Metall zu beaufschlagen und dadurch nacheinander entsprechend dem Inhalt des Vorratsgefäßes eine ganze Anzahl von Gegenständen herzustellen.The basic idea of the invention is that the possibility of oscillating the nozzle is used to apply sprayed metal to several support surfaces in succession, but without interrupting the atomization itself, and in this way to produce a large number of objects in succession in accordance with the content of the storage vessel .

Hierbei werden die Trägerflächen entweder nebeneinander so angeordnet, daß deren seitlicher Abstand dem Schwenkwinkel der Düsenanordnung entspricht, d.h. es wird zunächst in der einen Schwenkposition der Düse eine Trägerfläche besprüht und dann nach Fertigstellung dieses Gegenstandes erfolgt ein Verschwenken der Düsenanordnung auf die weitere Trägerfläche. Dabei ist es auch möglich, diese Trägerflächen revolverartig anzuordnen, so daß bei entsprechender Rotation der Trägerflächen nacheinander eine Sprühkompaktierung auf mehreren Trägerflächen erreichbar ist.Here, the support surfaces are either arranged side by side so that their lateral distance corresponds to the swivel angle of the nozzle arrangement, i.e. a carrier surface is first sprayed in one pivot position of the nozzle and then after the completion of this object the nozzle arrangement is pivoted onto the further carrier surface. It is also possible to arrange these carrier surfaces in a revolver-like manner, so that spray compaction on several carrier surfaces can be achieved in succession if the carrier surfaces are rotated accordingly.

Die Erfindung soll nachfolgend anhand der Zeichnungen erläutert werden, wobei

  • Figur 1 die schematische Darstellung der Einrichtung beim Besprühen einer Trägerfläche zeigt,
  • Figur 2 die Verschwenkung der Düsenanordnung zum Besprühen zweier im Abstand angeordneter Trägerflächen und
  • Figur 3 die Besprühung von Trägerflächen, die revolverartig unterhalb der Düsenanordnung vorgesehen sind.
The invention will be explained below with reference to the drawings, wherein
  • FIG. 1 shows the schematic representation of the device when spraying a carrier surface,
  • Figure 2 shows the pivoting of the nozzle arrangement for spraying two spaced support surfaces and
  • Figure 3 shows the spraying of support surfaces which are provided like a revolver below the nozzle arrangement.

In der Figur 1 ist der Verteiler mit 1 bezeichnet, und in diesem befindet sich die Metallschmelze 2. Der Verteiler 1 weist in üblicher Weise einen Ausguß 3 auf, an den sich eine Führungsdüse 4 anschließt. Ringartig um diese Führungsdüse 4 ist die Zerstäubungseinrichtung 5 angeordnet, wobei auf Einzelheiten der Darstellung hier verzichtet wurde, da diese aus dem Stand der Technik bekannt sind.In FIG. 1, the distributor is denoted by 1, and in this there is the molten metal 2. The distributor 1 has a spout 3 in the usual way, to which a guide nozzle 4 is connected. The atomizing device 5 is arranged in a ring around this guide nozzle 4, details of the illustration being omitted here, since these are known from the prior art.

Mit 6 ist die Zuleitung für Inertgas als Zerstäubungsmedium bezeichnet. Der Gießstrahl 7 wird durch dieses Zerstäubungsmedium zu einem Sprühstrahl 9 zerstäubt, der auf den Träger 11, der unterhalb der Düse vorbeigeführt wird, auftritt und hier das Sprühgut 10 erzeugt.The supply line for inert gas is designated 6 as the atomizing medium. The pouring jet 7 is atomized by this atomizing medium to form a spray jet 9, which occurs on the carrier 11, which is passed below the nozzle, and generates the spray material 10 here.

Aus der Figur 2 ist ersichtlich, daß die Düsenanordnung um eine Oszillationsachse senkrecht zur Mittenachse 13 und parallel zur Vorschubrichtung schwenkbar ist, und zwar mit einem Winkel β und dieser Winkel β richtet sich nach dem seitlichen Abstand der nebeneinander angeordneten Trägerflächen 11. Der Pendelbereich des Sprühkegels ist hier mit α bezeichnet. Zwischen den beiden Trägern 11 befindet sich eine Trennwand 12. Es ist nun ohne weiteres ersichtlich, daß zunächst auf diese Weise auf dem einen Träger ein Sprühgut erzeugt werden kann und daß dann nach Schwenken der Düse, zeitlich danach, die zweite Trägerfläche besprüht werden kann. Inzwischen läßt sich die erste Trägerfläche wieder bereitstellen, so daß der Vorgang insgesamt semikontinuierlich durchführbar ist unter Ausnutzung des gesamten Metallvorrates. Die Figur 3 zeigt eine abgewandelte Ausführung, bei der die Trägerflächen (zwei oder mehr) revolverartig unterhalb der Düse angeordnet sind. Auch hierbei bestimmt sich der Schwenkwinkel β nach dem seitlichen Abstand der Trägerflächen voneinander.It can be seen from FIG. 2 that the nozzle arrangement can be pivoted about an oscillation axis perpendicular to the central axis 13 and parallel to the feed direction, namely with an angle β and this angle β depends on the lateral distance between the carrier surfaces 11 arranged next to one another. The pendulum area of the spray cone is designated here with α. There is a partition 12 between the two supports 11. It is now readily apparent that spray material can first be produced in this way on one support and that, after the nozzle has been pivoted, afterwards, the second support surface can be sprayed. In the meantime, the first carrier surface can be made available again, so that the process can be carried out semi-continuously using the entire metal supply. FIG. 3 shows a modified embodiment in which the carrier surfaces (two or more) are arranged in a turret-like manner below the nozzle. Here, too, the swivel angle β is determined by the lateral distance between the support surfaces.

Claims (2)

1. Einrichtung zum semikontinuierlichen Sprühkompaktieren von Gegenständen mit einer flüssiges Metall versprühenden, schwenkbaren Düsenanordnung sowie einer unter dem Sprühkegel der Düse rotierend und/oder oszillierend bewegbaren, formbildenden Trägerfläche,
dadurch gekennzeichnet,
daß im Abstand nebeneinander mehrere Trägerflächen unter dem Sprühkegel der Düse zeitlich nacheinander bewegbar angeordnet sind und daß der Schwenkwinkel der Düsenanordnung derart einstellbar ist, daß er dem seitlichen Abstand der Trägerflächen voneinander entspricht.1. Device for the semi-continuous spray compacting of objects with a swiveling nozzle arrangement spraying liquid metal as well as a shape-forming carrier surface which can be rotated and / or oscillated under the spray cone of the nozzle,
characterized,
that a plurality of carrier surfaces are arranged next to one another at a distance below the spray cone of the nozzle and that the pivoting angle of the nozzle arrangement can be adjusted such that it corresponds to the lateral spacing of the carrier surfaces from one another. 2. Einrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Trägerflächen revolverartig angeordnet sind.2. Device according to claim 1,
characterized,
that the support surfaces are arranged like a revolver.
EP89730145A 1988-07-05 1989-06-20 Apparatus for semi-continuous spray compacting Expired - Lifetime EP0350432B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3823138 1988-07-05
DE3823138A DE3823138A1 (en) 1988-07-05 1988-07-05 DEVICE FOR SEMICONTINUOUS SPRAY COMPACTING

Publications (2)

Publication Number Publication Date
EP0350432A1 true EP0350432A1 (en) 1990-01-10
EP0350432B1 EP0350432B1 (en) 1992-08-26

Family

ID=6358233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89730145A Expired - Lifetime EP0350432B1 (en) 1988-07-05 1989-06-20 Apparatus for semi-continuous spray compacting

Country Status (3)

Country Link
EP (1) EP0350432B1 (en)
JP (1) JPH0277567A (en)
DE (1) DE3823138A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659898A1 (en) * 1993-12-17 1995-06-28 General Electric Company Improved molten metal spray forming atomizing ring converter
EP1422309A1 (en) * 2002-11-22 2004-05-26 Siemens Aktiengesellschaft Use of an apparatus for spray compacting for the production of a layer and layer system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4761729B2 (en) * 2004-05-18 2011-08-31 シーシーエス株式会社 Plant growing device
JP2009293835A (en) * 2008-06-03 2009-12-17 Denso Corp Dehumidifying and humidifying device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1772120A1 (en) * 1968-04-02 1970-03-19 Westfaelische Metall Industrie Process for the production of parabolic reflectors, in particular for motor vehicle headlights
DE2043882B2 (en) * 1969-09-09 1974-02-21 Vereinigte Oesterreichische Eisenund Stahlwerke Ag, Linz (Oesterreich) Process for the production of a cast steel block, in particular a slab from unkilled steel and device for carrying out the process
DE2314348A1 (en) * 1973-03-22 1974-09-26 Volvo Ab Molybdenum flame spraying of synchroniser rings - rotating jig for prodn. of wear resistant coatings with uniform thickness
EP0225732A1 (en) * 1985-11-12 1987-06-16 Osprey Metals Limited Production of spray deposits

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358258A (en) * 1940-06-07 1944-09-12 Howard V Schweitzer Universal ceramic machine
FR1178207A (en) * 1956-07-13 1959-05-05 I C I Sa Device for automatic orientation, under any law, of water sprays, particularly intended for lances for evacuating cellulose from flow tanks
FR2200761A5 (en) * 1972-09-25 1974-04-19 Saunier Duval
DE2754136C3 (en) * 1977-12-05 1980-06-26 Sprimag Spritzmaschinenbau-Gesellschaft Mbh, 7312 Kirchheim Spray device for horizontally fed cylindrical bodies
ATE37301T1 (en) * 1985-04-16 1988-10-15 Braun Ohg DISTRIBUTION DEVICE FOR SPREADING GUELLE OR LIKE. IN AGRICULTURE.
DE3666784D1 (en) * 1985-11-07 1989-12-14 Weatherford Us Inc Oscillating spray apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1772120A1 (en) * 1968-04-02 1970-03-19 Westfaelische Metall Industrie Process for the production of parabolic reflectors, in particular for motor vehicle headlights
DE2043882B2 (en) * 1969-09-09 1974-02-21 Vereinigte Oesterreichische Eisenund Stahlwerke Ag, Linz (Oesterreich) Process for the production of a cast steel block, in particular a slab from unkilled steel and device for carrying out the process
DE2314348A1 (en) * 1973-03-22 1974-09-26 Volvo Ab Molybdenum flame spraying of synchroniser rings - rotating jig for prodn. of wear resistant coatings with uniform thickness
EP0225732A1 (en) * 1985-11-12 1987-06-16 Osprey Metals Limited Production of spray deposits

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 74 (C-273)[1797], 3. April 1985; & JP-A-59 205 458 (HITACHI SEISAKUSHO K.K.) 21-11-1984 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659898A1 (en) * 1993-12-17 1995-06-28 General Electric Company Improved molten metal spray forming atomizing ring converter
EP1422309A1 (en) * 2002-11-22 2004-05-26 Siemens Aktiengesellschaft Use of an apparatus for spray compacting for the production of a layer and layer system

Also Published As

Publication number Publication date
EP0350432B1 (en) 1992-08-26
JPH0277567A (en) 1990-03-16
DE3823138A1 (en) 1990-04-19

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