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DE1225025B - Device for evenly applying powder to a surface - Google Patents

Device for evenly applying powder to a surface

Info

Publication number
DE1225025B
DE1225025B DEB76986A DEB0076986A DE1225025B DE 1225025 B DE1225025 B DE 1225025B DE B76986 A DEB76986 A DE B76986A DE B0076986 A DEB0076986 A DE B0076986A DE 1225025 B DE1225025 B DE 1225025B
Authority
DE
Germany
Prior art keywords
powder
recesses
conveyor roller
hollow cylinder
storage container
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.)
Pending
Application number
DEB76986A
Other languages
German (de)
Inventor
Albert Edward Jackson
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.)
British Iron and Steel Research Association BISRA
Original Assignee
British Iron and Steel Research Association BISRA
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 British Iron and Steel Research Association BISRA filed Critical British Iron and Steel Research Association BISRA
Publication of DE1225025B publication Critical patent/DE1225025B/en
Pending legal-status Critical Current

Links

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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00—Coating with enamels or vitreous layers
    • C23D5/04—Coating with enamels or vitreous layers by dry methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/007—Processes for applying liquids or other fluent materials using an electrostatic field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/30—Processes for applying liquids or other fluent materials performed by gravity only, i.e. flow coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/02—Dispensing from vessels, e.g. hoppers
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
    • B05D2401/30—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant
    • B05D2401/32—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant applied as powders

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Robotics (AREA)
  • Composite Materials (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating Apparatus (AREA)
  • Powder Metallurgy (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

B22fB22f

Int. CL:Int. CL:

Deutsche Kl.:German class:

Nummer: 1225Number: 1225

Aktenzeichen: B 769861 b/491File number: B 769861 b / 491

Anmeldetag: 30. Mai 1964 Filing date: May 30, 1964

Auslegetag: 15. September 1966Opening day: September 15, 1966

_12 JeWKft ^ \?/* PiH. Bl. ua 2 9.12. fl? _ 12 JeWKft ^ \? / * PiH. Bl. Et al. 2 9.12. fl?

Die Erfindung betrifft eine Vorrichtung zum gleichmäßigen Aufbringen von Pulver auf eine Fläche, insbesondere beim Herstellen von Überzügen auf Blechen, bestehend aus einem Pulvervorratsbehälter und einer auf ihrem Umfang mit Ausnehmungen für das Pulver versehenen Förderwalze, an der der Pulvervorratsbehälter dichtend anliegt und gegenüber welcher die Fläche vorbeibewegt wird.The invention relates to a device for uniformly applying powder to a Area, in particular when producing coatings on metal sheets, consisting of a powder storage container and a conveyor roller provided on its circumference with recesses for the powder, against which the powder storage container rests in a sealing manner and opposite which the surface is moved past.

Wenn mit einer solchen Vorrichtung Pulver gleichmäßig aufgebracht werden soll, dann ist es wichtig, daß bei jeder Umdrehung der Förderwalze jeweils das von einer Ausnehmung aufgenommene Pulver vollständig aus dieser herausgelangt. In den meisten Fällen sind jedoch die Pulver nicht ganz trocken und zeigen damit eine Neigung, in den Ausnehmungen zumindest teilweise kleben zu bleiben, oder die Pulver weisen selbst teilweise klebende Bestandteile auf, wobei dann dasselbe Problem auftritt. Die Erfindung geht von der Erkenntnis aus, daß man die gleichmäßige Entleerung der Ausnehmungen nicht der Schwerkraft allein überlassen darf und besteht darin, daß die Förderwalze mit einer Vorrichtung versehen ist, die das Pulver aus den Ausnehmungen zwangläufig entfernt.If powder is to be applied evenly with such a device, then it is It is important that with each revolution of the conveyor roller the one received by a recess Powder got completely out of this. In most cases, however, the powders are not whole dry and thus show a tendency to at least partially stick in the recesses, or the powders themselves have partially adhesive components, in which case the same problem arises. The invention is based on the knowledge that the even emptying of the recesses can be achieved must not be left to gravity alone and consists in that the conveyor roller with a device is provided, which inevitably removes the powder from the recesses.

Zwei Ausführungen der Erfindung sind in den as Unteransprüchen gekennzeichnet und werden im folgenden unter Hinweis auf die Zeichnung beschrieben. In jeder der beiden Figuren ist eines dieser Ausführungsbeispiele schematisch dargestellt. Beide Ausführungen der Erfindung dienen dazu, auf ein sich unter der erfindungsgemäßen Vorrichtung vorbeibewegendes Band, beispielsweise aus Blech, Pulver aus einem Vorratsbehälter gleichmäßig aufzubringen. Two embodiments of the invention are shown in as Characterized subclaims and are described below with reference to the drawing. One of these exemplary embodiments is shown schematically in each of the two figures. Both Embodiments of the invention serve to point to a device moving past under the device according to the invention Tape, for example made of sheet metal, to apply powder evenly from a storage container.

Bei der Ausführung nach Fig. 1 bewegt sich ein Band 10 in Richtung des Pfeiles. Mit waagerechter Achse rotiert mit Abstand über dem Band 10 eine Förderwalze 16, welche mit einem anliegenden Mantel aus Blech oder einem anderen Werkstoff versehen ist. In diesem Mantel aus Blech sind Löcher, wie bei 14 schematisch dargestellt, ausgebildet. Auf diese Weise entstehen die Ausnehmungen zum Fördern des Pulvers 18 aus einem Vorratsbehälter 15 heraus. Dieser besteht im wesentlichen aus zwei sich parallel zur Umlaufachse der Förderwalze erstreckenden Blechen, die mit ihren Kanten den Umfang der Förderwalze berühren. 21 ist ein Abstreifer, der dafür sorgt, daß die Oberfläche des Bleches frei von Pulver bleibt, das in den Löchern der im Gegenuhrzeigersinn umlaufenden Förderwalze 16 aus dem Vorratsbehälter herausbefördert wird. Achsenparallel und etwa auf Höhe der Achse Vorrichtung zum gleichmäßigen Aufbringen von
Pulver auf eine FlächeIn the embodiment according to FIG. 1, a belt 10 moves in the direction of the arrow. Rotating with a horizontal axis at a distance above the belt 10 is a conveyor roller 16 which is provided with an adjacent jacket made of sheet metal or another material. Holes, as shown schematically at 14, are formed in this sheet metal jacket. In this way, the recesses for conveying the powder 18 from a storage container 15 are created. This consists essentially of two sheets extending parallel to the axis of rotation of the conveyor roller, the edges of which touch the circumference of the conveyor roller. 21 is a scraper which ensures that the surface of the sheet remains free of powder that is conveyed out of the storage container in the holes of the counterclockwise rotating conveyor roller 16. Parallel to the axis and approximately at the level of the axis, device for the uniform application of
Powder on a surface

Anmelder:Applicant:

The British Iron and Steel Research Association,The British Iron and Steel Research Association,

LondonLondon

Vertreter:Representative:

Dipl.-Ing.. K. A. Bröse, Patentanwalt,Dipl.-Ing .. K. A. Bröse, patent attorney,

Pullach (Isartal), Wiener Str. 2Pullach (Isar Valley), Wiener Str. 2

Als Erfinder benannt:Named as inventor:

Albert Edward Jackson,Albert Edward Jackson,

Killay, Glamorganshire, Wales (Großbritannien)Killay, Glamorganshire, Wales (UK)

Beanspruchte Priorität:Claimed priority:

Großbritannien vom 7. Juni 1963 (22 769)Great Britain 7 June 1963 (22 769)

der Förderwalze 16 rotiert entgegengesetzt zu dieser eine Bürstenwalze 17, die mit ihren Borsten in die in ihrem Bereich befindlichen Ausnehmungen 14 eingreift und in der dargestellten Weise das Pulver aus den Ausnehmungen herauskehrt.the conveyor roller 16 rotates opposite to this a brush roller 17, which with its bristles in the their area located recesses 14 engages and the powder in the manner shown sweeps out of the recesses.

Bei der Ausführung nach F i g. 2 bewegt sich das Band 10 in Pfeilrichtung unter dem das Pulver 18 enthaltenden Vorratsbehälter 15. Die Förderwalze besteht aus einem Hohlzylinder 22 aus porösem, d. h. luftdurchlässigem Werkstoff, z. B. Sinterbronze, welche jedoch das Pulver 18 nicht durchläßt. Die Oberfläche des Hohlzylinders 22 ist mit einem eng anliegenden Blech 23, beispielsweise aus Metall, bedeckt, welches wie beim Ausführungsbeispiel nach F i g. 1 gleichmäßig durchbohrt ist und so Ausnehmungen zum Fördern des Pulvers 18 aus dem Vorratsbehälter 15 bildet, wenn sich der Hohlzylinder 22 beispielsweise im Gegenuhrzeigershin dreht. Innerhalb des Hohlzylinders 22 ist axial eine mit Öffnungen versehene Leitung 24 vorgesehen, die mit einer Druckluftquelle in Verbindung steht. Von der Leitung 24 erstrecken sich zwei feststehende Leitbleche 25 nach unten, welche eine Luftkammer 26 bilden. Wenn der Hohlzylinder 22 in der dargestellten Weise rotiert, wird Pulver 18 in den Ausnehmungen in den Ausströmbereich der Druckluftkammer 26 gefördert. Wenn die Ausnehmungen über diesem Bereich vorbeilaufen, dann bläst dieIn the embodiment according to FIG. 2 the belt 10 moves in the direction of the arrow below which the powder 18 containing storage container 15. The conveyor roller consists of a hollow cylinder 22 made of porous, d. H. air-permeable material, e.g. B. sintered bronze, which, however, does not let the powder 18 through. the The surface of the hollow cylinder 22 is covered with a tightly fitting sheet 23, for example made of metal, covered, which as in the embodiment of FIG. 1 is evenly pierced and so recesses for conveying the powder 18 from the storage container 15 when the hollow cylinder 22 rotates counterclockwise, for example. Within the hollow cylinder 22 is axially with Orifices provided line 24 is provided, which is in communication with a source of compressed air. Of the Line 24, two fixed guide plates 25 extend downwards, which form an air chamber 26 form. When the hollow cylinder 22 rotates as shown, powder 18 becomes in the recesses conveyed into the outflow area of the compressed air chamber 26. When the recesses walk past this area, then the blows

J ----' "--'- '■■■'- J ---- '"--'- ' ■■■ '- 609 660/223609 660/223

Druckluft wegen der Gasdurchlässigkeit des Hohlzylinders 22 das Pulver 18 aus den Ausnehmungen heraus nach unten gleichmäßig auf das Band 10.Compressed air because of the gas permeability of the hollow cylinder 22 the powder 18 out of the recesses downwards evenly onto the belt 10.

Im Rahmen der Erfindung ist es möglich, z. B. mit zwei nach der Erfindung ausgebildeten Aufbringvorrichtungen ein Blechband zweiseitig zu beschichten, indem :man eine S-förmige Führung des Bandes vorsieht und in den beiden Bögen des»S« je eine Vorrichtung nach der Erfindung anordnet.In the context of the invention it is possible, for. B. with two application devices designed according to the invention Coating a sheet metal strip on both sides by: Providing an S-shaped guide for the strip and in the two arcs of the "S" each arranges a device according to the invention.

Die Ausführung nach der F i g. 2 gestattet auch ein Blasen von Pulver aus den Ausnehmungen nach oben heraus, wobei dann gegebenenfalls der Vorratsbehälter 15 etwas seitlich angeordnet werden müßte, so ..daß die. Ausnehmungen im Bereich des Behälters durch die Schwerkraft mit Pulver gefüllt werden.The execution according to FIG. 2 also allows powder to be blown out of the recesses out at the top, the storage container 15 then possibly being arranged somewhat to the side would have to, so ..that the. Recesses in the area of the The container can be filled with powder by gravity.

,Die Vorrichtung gemäß der Erfindung kann z. B. dazu verwendet werden, um ein Metall, eine Legierung, ein Metalloxyd oder einen Kunststoff in Pulverform auf eine oder beide Seiten eines Metallbleches gleichmäßig aufzubringen. Das aufgebrachte Pulver kann verdichtet und durch Sintern in eine zusammenhängende Schicht übergeführt und mit dem Metallblech verbunden werden., The device according to the invention can, for. B. be used to create a metal, an alloy, a metal oxide or a plastic in powder form on one or both sides of a metal sheet apply evenly. The applied powder can be compacted and sintered into a coherent layer are transferred and connected to the metal sheet.

Claims (3)

Patentansprüche:Patent claims: 1. Vorrichtung zum gleichmäßigen Aufbringen von Pulver auf eine Fläche, insbesondere beim Herstellen von Überzügen auf Blechen, bestehend aus einem Pulvervorratsbehälter und einer auf ihrem Umfang mit Ausnehmungen für das Pulver versehenen Förderwalze, an der der Pulvervorratsbehälter dichtend anliegt und gegenüber welcher die Fläche vorbeibewegt wird, dadurch gekennzeichnet, daß die Förderwalze mit einer Vorrichtung versehen ist, die das Pulver aus den Ausnehmungen zwangläufig entfernt.1. Device for evenly applying powder to a surface, especially when Manufacture of coatings on metal sheets, consisting of a powder storage container and one on its circumference is provided with recesses for the powder conveyor roller on which the powder storage container rests sealingly and against which the surface is moved past, thereby characterized in that the conveyor roller is provided with a device which the powder inevitably removed from the recesses. 2. Vorrichtung nach Anspruch 1, gekennzeichnet durch eine etwa in gleichem Abstand über der mit dem Pulver zu belegenden Fläche (10) wie die Förderwalze (16) und achsparallel zu dieser angeordnete, umlaufende Bürstenwalze (17), deren Borsten in die Ausnehmungen der Förderwalze (16) hineinragen.2. Apparatus according to claim 1, characterized by approximately the same distance over the surface to be covered with the powder (10) such as the conveyor roller (16) and axially parallel to this arranged, revolving brush roller (17), the bristles of which in the recesses of Project the conveyor roller (16). 3. Vorrichtung nach Anspruch 1, gekennzeichnet durch einen Hohlzylinder (22) mit einem Mantel aus luftdurchlässigem Werkstoff, z. B. Sinterbronze, der mit einem mit die Ausnehmungen bildenden Löchern versehenen Blech (23) überzogen ist, durch eine ins Innere des Hohlzylinders (22) geführte Druckluftleitung (24) und durch eine, sich an diese anschließende, durch feststehende Leitbleche (25) begrenzte und sich bis an den inneren Umfang des Hohlzylindermantels erstreckende Druckluftkammer (26),3. Apparatus according to claim 1, characterized by a hollow cylinder (22) with a Jacket made of air-permeable material, e.g. B. sintered bronze, with one with the recesses Forming holes provided sheet (23) is coated by an inside of the hollow cylinder (22) guided compressed air line (24) and through a, adjoining this through fixed baffles (25) limited and extended to the inner circumference of the hollow cylinder jacket extending compressed air chamber (26), In Betracht gezogene. Druckschriften:
USA.-Patentschrift Nr. 3 017 665.Considered. Publications:
U.S. Patent No. 3,017,665. Hierzu 1 Blatt Zeichnungen1 sheet of drawings 609 660/223 9. 66 © Bundesdruckerei Berlin609 660/223 9. 66 © Bundesdruckerei Berlin
DEB76986A 1963-06-07 1964-05-30 Device for evenly applying powder to a surface Pending DE1225025B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2276963A GB1035256A (en) 1963-06-07 1963-06-07 Improvements in or relating to the deposition of powder coatings on strip material

Publications (1)

Publication Number Publication Date
DE1225025B true DE1225025B (en) 1966-09-15

Family

ID=10184779

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19641458263 Pending DE1458263A1 (en) 1963-06-07 1964-05-30 Method for applying a coating made of a metal, a metal alloy, a metal oxide or the like.
DEB76986A Pending DE1225025B (en) 1963-06-07 1964-05-30 Device for evenly applying powder to a surface

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19641458263 Pending DE1458263A1 (en) 1963-06-07 1964-05-30 Method for applying a coating made of a metal, a metal alloy, a metal oxide or the like.

Country Status (5)

Country Link
BE (1) BE648930A (en)
DE (2) DE1458263A1 (en)
GB (1) GB1035256A (en)
LU (1) LU46250A1 (en)
NL (1) NL6406463A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1018954A3 (en) 2009-10-14 2011-11-08 Flooring Ind Ltd Sarl METHODS FOR MANUFACTURING PANELS AND PANEL OBTAINED HEREBY
BE1020072A5 (en) 2011-07-12 2013-04-02 Flooring Ind Ltd Sarl METHODS FOR MANUFACTURING LAMINATE PANELS.
BE1021674B1 (en) 2013-04-12 2016-01-05 Unilin Bvba METHOD FOR MANUFACTURING PANALS AND PANEL OBTAINED HEREBY
BE1027438B1 (en) 2019-07-16 2021-02-16 Unilin Bv Plate material and floor panel based on such plate material
EP3999292A1 (en) 2019-07-16 2022-05-25 Flooring Industries Limited, SARL Board and floor panel based on such board
CN111715490B (en) * 2020-07-01 2022-08-16 矿冶科技集团有限公司 Method for spraying abradable coating of large-size annular piece

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017665A (en) * 1958-01-13 1962-01-23 Crucible Steel Co America Rolling mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017665A (en) * 1958-01-13 1962-01-23 Crucible Steel Co America Rolling mill

Also Published As

Publication number Publication date
DE1458263A1 (en) 1969-09-25
BE648930A (en) 1964-10-01
NL6406463A (en) 1964-12-08
GB1035256A (en) 1966-07-06
LU46250A1 (en) 1964-12-03

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