EP0486912A2 - Closing and draining device for drums for electrolytic or chemical surface treatment of articles in bulk - Google Patents

Closing and draining device for drums for electrolytic or chemical surface treatment of articles in bulk Download PDF

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Publication number
EP0486912A2
EP0486912A2 EP91119141A EP91119141A EP0486912A2 EP 0486912 A2 EP0486912 A2 EP 0486912A2 EP 91119141 A EP91119141 A EP 91119141A EP 91119141 A EP91119141 A EP 91119141A EP 0486912 A2 EP0486912 A2 EP 0486912A2
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EP
European Patent Office
Prior art keywords
drum
drainage
treatment
drums
submersible
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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
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EP91119141A
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German (de)
French (fr)
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EP0486912A3 (en
EP0486912B1 (en
Inventor
Heinz Strecke
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MANZ GALVANO-TECHNIK GMBH.
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Manz Galvano-Technik GmbH
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Publication of EP0486912A3 publication Critical patent/EP0486912A3/xx
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/16—Apparatus for electrolytic coating of small objects in bulk
    • C25D17/18—Apparatus for electrolytic coating of small objects in bulk having closed containers
    • C25D17/20—Horizontal barrels

Abstract

To minimise the entrainment losses, the treatment solutions are automatically removed from the immersion drum by means of a drainage channel (DK) and a drip strip (15) after the drums (1) have been lifted out of the treatment baths (13). When the drum (1) is rotated in the direction of rotation (B) by means of the drum rotary drive (16), a barrier strip (2) and a drainage strip (3) prevent the product conglomerate and the treatment solution dropping onto the inside casing of the drum (1). The treatment solution collected in front of the drainage channel (DK) drains via the openings (6) in the drum casing (4). A control system controls the sequence of transport, rotation and direction of rotation of the drum (1), and also the stop and go operation for the rotation of the drum (1) in order to optimise the separation phase for removing treatment solutions from the drum (1). <IMAGE>

Description

Die Erfindung betrifft Vorrichtungen für den Umweltschutz zur Minimierung der Verschleppung von Behandlungslösungen in den Spül- und/oder Abwasserkreislauf bei der galvanischen und/oder chemischen Oberflächenbehandlung von Massenteilen in Tauchtrommeln; dabei wird nach dem Ausheben der Tauchtrommel aus dem Behandlungsbad mittels Sperr- und Dränagesystem die Behandlungslösung in das Behandlungsbad zurückgeführt.The invention relates to devices for environmental protection to minimize the carry-over of treatment solutions into the rinsing and / or wastewater circuit in the galvanic and / or chemical surface treatment of mass parts in submersible drums; after lifting the immersion drum from the treatment bath, the treatment solution is returned to the treatment bath by means of a locking and drainage system.

Es sind Methoden bekannt, bei denen Druckluft- und/oder Unterdrucksysteme die Behandlungslösung von der Ware und dem Trommelkörper trennen sollen. Weiter sind Methoden bekannt, bei denen die Tauchtrommeln mit Wasser abgespritzt werden um die Behandlungslösungen zu verdünnen.

Figure imgb0001
Methods are known in which compressed air and / or vacuum systems are intended to separate the treatment solution from the goods and the drum body. Methods are also known in which the submersible drums are sprayed with water in order to dilute the treatment solutions.
Figure imgb0001

Bei den bekannten Methoden für die Trommeltechnik stellt die Kontaminierung von Luft und/oder Wasser mit Chemikalien ein Problem dar. Zusätzliche Reinigungsanlagen sind bei der Anwendung solcher Techniken notwendig. Trotz hohem gerätetchnischem Aufwand ist die direkte Rückführquote von unverdünnten Behandlungslösungen aus Tauchtrommeln in die Behandlungsbäder innerhalb einer Produktionslinie, wenn überhaupt, gering.In the known methods for drum technology, the contamination of air and / or water with chemicals is a problem. Additional cleaning systems are necessary when using such techniques. Despite the high expenditure on equipment, the direct return rate of undiluted treatment solutions from submersible drums into the treatment baths within a production line is low, if at all.

Verdünnungs-Methoden lösen nicht die Umweltschutz-Probleme, sondern verlagern sie nur von der Produktionslinie in den Bereich der Abwasseraufbereitung.Dilution methods do not solve environmental problems, but only move them from the production line to the area of wastewater treatment.

Hier schafft die Erfindung Abhilfe.
Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, lößt die Aufgabe, durch ein Sperr- und Dränagesystem, ohne Verwendung von Luft und/oder Wasser, nach dem Ausheben der Tauchtrommel aus einem Behandlungsbad die Behandlungslösung direkt in das Behandlungsbad zurückzuführen. Die Rotation der Tauchtrommel, die Drehrichtung, die Positionierung der Sperr- und Dränagevorrichtung im Stop- und Go-Betrieb, sowie die Transportabfolge werden von einem Steuersystem gesteuert, wobei die Programmabfolgen frei wählbar sind.Ein Positionselement an der Tauchtrommel ermöglicht es in Verbindung mit dem Steuersystem, die Stop-Position der Sperr- und Dränagevorrichtung bereits im Behandlungsbad und/oder während dem Ausheben der Tauchtrommel aus einem Behandlungsbad, zu fixieren.The invention provides a remedy here.
The invention, as characterized in the claims, solves the problem of returning the treatment solution directly to the treatment bath by means of a blocking and drainage system, without using air and / or water, after lifting the immersion drum out of a treatment bath. The rotation of the submersible drum, the direction of rotation, the positioning of the locking and drainage device in stop and go operation, as well as the transport sequence are controlled by a control system, whereby the program sequences are freely selectable. A position element on the submersible drum makes it possible in connection with the Control system to fix the stop position of the blocking and drainage device already in the treatment bath and / or while the diving drum is being lifted out of a treatment bath.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, daß Chemikalien eingespart werden, die Spülwassermenge reduziert und der Energieverbrauch gesenkt wird, teure Abwasseraufbereitungsanlagen vermieden werden und die Spülwasserkreislaufführung für eine abfallarme/abfallose Galvanik ermöglicht wird. Erreicht werden diese Vorteile dadurch, daß Behandlungslösungen, zur Abfallvermeidung, bereits innerhalb der Produktionslinie in die jeweiligen Behandlungsbäder zurückgeführt werden. Weitere Vorteile sind die einfache Ausrüstung von Tauchtrommeln mit einer Sperr- und Dränagevorrichtung, sowie die Möglichkeit der einfachen Nachrüstung vorhandener Anlagen und die Zeitensparung beim Trocknungsprozeß der Ware in Trockenöfen.The advantages achieved by the invention are essentially to be seen in the fact that chemicals are saved, the amount of rinsing water is reduced and the energy consumption is reduced, expensive waste water treatment plants are avoided and the rinsing water circuit is made possible for low-waste / waste-free electroplating. These advantages are achieved in that treatment solutions for avoiding waste are returned to the respective treatment baths within the production line. Further advantages are the simple equipping of submersible drums with a locking and drainage device, the possibility of simply retrofitting existing systems and saving time in the drying process of the goods in drying ovens.

Die Erfindung wird an einigen schematisch dargestellten Beispielen beschrieben und erläutert. Dem Fachmann bekannte und geläufige Konstruktionselemente wurden zeichnerisch nicht berüchsichtigt.The invention is described and explained using some schematically illustrated examples. Construction elements known and familiar to the person skilled in the art were not taken into account in the drawing.

Fig.1 zeigt in einer Seitenansicht den prinzipiellen Aufbau einer Galvano-Trommelanlage, deren Einzelheiten als bekannt vorausgesetzt werden.
Fig.2 zeigt schematisch die Frontansicht einer Tauchtrommel. Fig.3 zeigt den Querschnitt einer Tauchtrommel.
Fig.4 zeigt als Beispiel die Anordnung einer Sperr- und Dränagevorrichtung in einer Tauchtrommel; und ein an einer Stirnseite der Tauchtrommel angebrachtes Positionselement.
Fig.5 zeigt die Teilansicht einer Tauchtrommel im Querschnitt, mit einer Sperr- und Dränagevorrichtung.
Fig.6 zeigt die Teilansicht einer Tauchtrommel im Querschnitt, als Beispiel von Gestaltungsmöglichkeiten von Sperr- und Dränagevorrichtungen.
Fig.7 zeigt als Beispiel die Anordnung der Sperr- und Dränagevorrichtung am Deckel einer Tauchtrommel.
Fig.8, Fig.9 und Fig.10 zeigen Beispiele mit einer Badgruppe von drei Behandlungsstationen und einem Hub- und Transportwagen, aus denen die Abfolge für das Ausheben der Tauchtrommel aus dem Behandlungsbad und der Weitertransport zu einem nächsten Behandlungsbad ersichtlich ist.
Fig.11 zeigt eine Anlage im Querschnitt; zur galvanischen und/oder chemischen Behandlung von Massenteilen in Tauchtrommeln, die durch Transporteinheiten (Hub- und Transportwagen) durch die Prozeßstationen transportiert werden.1 shows a side view of the basic structure of a galvanic drum system, the details of which are assumed to be known.
Fig.2 shows schematically the front view of a submersible drum. 3 shows the cross section of a submersible drum.
4 shows as an example the arrangement of a locking and drainage device in a submersible drum; and a position element attached to an end face of the immersion drum.
5 shows the partial view of a submersible drum in cross section, with a locking and drainage device.
Fig. 6 shows the partial view of a submersible drum in cross section, as an example of design options for locking and drainage devices.
Fig. 7 shows an example of the arrangement of the locking and drainage device on the lid of a diving drum.
8, 9 and 10 show examples with a bath group of three treatment stations and a lifting and transport carriage, from which the sequence for lifting the immersion drum out of the treatment bath and the further transport to a next treatment bath can be seen.
11 shows a plant in cross section; for the galvanic and / or chemical treatment of mass parts in submersible drums which are transported through the process stations by transport units (lifting and transport vehicles).

In den Abbildungen, Fig.1 bis Fig.11, sind die für den Wirkmechanismus der Sperr- und Dränagevorrichtung relevanten Einzelteile; und die mit dem Funktionsablauf verbundenen Transportabfolgen dargestellt. Sperrleiste (2), Dränageleiste (3) und der Trommelmantel (4) bilden den geraden Dränagekanal (DK) oder den gebogenen Dränagekanal (DK'). Bevor eine Tauchtrommel (1) aus einem Behandlungsbad (13) ausgehoben wird ist es vorteilhaft, den Dränagekanal (DK) an einer bestimmten Stelle des Kreisumfang mittels Positionselement (9), im zusammenwirken mit dem Steuersystem, zu positionieren.In the figures, Fig.1 to Fig.11, the individual parts relevant to the mechanism of action of the locking and drainage device; and the transport sequences associated with the functional sequence are shown. Blocking strip (2), drainage strip (3) and the drum casing (4) form the straight drainage channel (DK) or the curved drainage channel (DK '). Before an immersion drum (1) is lifted out of a treatment bath (13), it is advantageous to position the drainage channel (DK) at a certain point on the circumference by means of a positioning element (9) in cooperation with the control system.

Wird nach dem Aushaben der Tauchtrommel (1) aus einem Behandlungsbad (13) die Tauchtrommel (1) mittels Trommel-Drehantrieb (16) in Richtung (B) gedreht, kann die Ware und die Behandlungslösung nicht mehr am Innenmantel der Tauchtrommel (1) abgleiten, Ware und Behandlungslösung werden durch die Sperrleiste (2) und die Dränageleiste (3) mitgenommen; über die Dränageleiste (3) wird die Behandlungslösung zwangsweise aus der Tauchtrommel (1) abgeschieden. Eine Abtropfleiste (15) sorgt dafür, daß die austretende Behandlungslösung auch vom Außenmantel der Tauchtrommel (1) getrennt wird.If, after the immersion drum (1) has been removed from a treatment bath (13), the immersion drum (1) is rotated in direction (B) by means of a rotary drum drive (16), the goods and the treatment solution can no longer slide off the inner jacket of the immersion drum (1) , Goods and treatment solution are carried by the locking bar (2) and the drainage bar (3); The treatment solution is forcibly separated from the immersion drum (1) via the drainage strip (3). A drip tray (15) ensures that the emerging treatment solution is also separated from the outer jacket of the immersion drum (1).

Die Drehbewegung der Tauchtrommel (1) kann kontinuierlich, oder um ein überlaufen der Behandlungslösung über die Sperr- und Dränagevorrichtung zu verhindern, schrittweise erfolgen. Der Lochdurchmesser (5) der Perforation des Trommelmantels (4) reicht meistens nicht aus, um die Behandlungslösung schnell und mit hohem Wirkungsgrad aus der Tauchtrommel (1) abzuscheiden. Erfindungsgemäß ist deshalb der Teil des Trommelmantels (4), der Zum Dränagekanal (DK) gehört, mit großen Öffnungen (6) versehen. Weiter kann noch durch Öffnungen (7) an den zwei Stirnseiten (8) und (8') der Tauchtrommel (1) das Abflußverhalten der Behandlungslösung aus dem Dränagekanal (DK) verbessert werden.The rotary movement of the immersion drum (1) can take place continuously, or in order to prevent the treatment solution from overflowing via the blocking and drainage device. The hole diameter (5) of the perforation of the drum jacket (4) is usually not sufficient to separate the treatment solution quickly and with high efficiency from the immersion drum (1). According to the invention, the part of the drum jacket (4) that belongs to the drainage channel (DK) is provided with large openings (6). Furthermore, the outflow behavior of the treatment solution from the drainage channel (DK) can be improved through openings (7) on the two end faces (8) and (8 ') of the immersion drum (1).

Im Verlauf der Drehbewegung fällt das Warenkonglomerat, das sich in der Tauchtrommel (1) befindet, auseinander und in den Innenraum der Tauchtrommel (1) zurück. Die Massenware erschüttert dabei den Trommelmantel (4) stoßartig; als Folge wird noch Behandlungslösung aus der Perforation (5) des Trommelmantels (4) abgestoßen. Zur Umrüstung vorhandener Anlagen können ganz einfach die Trommeldeckel (4

Figure imgb0002
) mit einem Dränagekanal (DK) ausgerüstet, oder gegen einen solchen mit Dränagekanal (DK) ausgetauscht werden.In the course of the rotary movement, the goods conglomerate, which is located in the immersion drum (1), falls apart and falls back into the interior of the immersion drum (1). The mass-produced goods shake the drum jacket (4) abruptly; as a result, treatment solution is still expelled from the perforation (5) of the drum casing (4). To convert existing systems, the drum cover (4
Figure imgb0002
) equipped with a drainage channel (DK), or exchanged for one with a drainage channel (DK).

Für die Verfahrensabfolgen werden die Tauchtrommeln (1) von der Station (14) mittels Transportsystem (10), an das eine nach zwei Seiten ausfahrbare Auffangwanne (11) angebracht werden kann, durch die Behandlungsbäder (13) transportiert. Während dem Transport der Tauchtrommel (1) von einem Behandlungsbad (13) zum nächsten Behandlungsbad (13), kann die aus der Tauchtrommel (1) noch abtropfende Behandlungslösung noch in der Auffangwanne (11) aufgefangen werden. Je nach Transportrichtung der Tauchtrommel (11), von Behandlungsbad (13P) nach Behandlungsbad (13S) oder von Behandlungsbad (13P) nach Behandlungsbad (13S

Figure imgb0002
), wird zur Rückführung der aufgefangenen Behandlungslösung in das Behandlungsbad (13P) die Auffangwanne (11) nach der einen oder anderen Seite aus dem Transportsystem (10) ausgefahren. Die in der Auffangwanne (11) gesammelte Behandlungslösung wird über das steuerbare Magnetventil (12) in das Behandlungsbad (13P) abgelassen.For the process sequences, the immersion drums (1) are transported through the treatment baths (13) by the station (14) by means of a transport system (10) to which a collecting trough (11) which can be extended on two sides can be attached. During the transport of the immersion drum (1) from one treatment bath (13) to the next treatment bath (13), the treatment solution still dripping from the immersion drum (1) can still be collected in the collecting trough (11). Depending on the transport direction of the immersion drum (11), from treatment bath (13P) to treatment bath (13S) or from treatment bath (13P) to treatment bath (13S
Figure imgb0002
), in order to return the collected treatment solution to the treatment bath (13P), the collecting trough (11) is moved out of the transport system (10) to one side or the other. The treatment solution collected in the drip pan (11) is drained into the treatment bath (13P) via the controllable solenoid valve (12).

Claims (7)

Vorrichtung zur Minimierung der Umweltbelastung bei der galvanischen und/oder chemischen Oberflächenbehandlung von Massenteilen in Tauchtrommeln (1) durch Rückführung von Behandlungslösungen nach dem Ausheben der Tauchtrommel (1) aus Behandlungsstationen (13), dadurch gekennzeichnet, daß die Tauchtrommeln (1) mit einer oder mehreren Sperr- und Dränagevorrichtungen (DK) ausgerüstet werden, eine oder mehrere Abtropfleisten (15), sowie ein Positionselement(9) besitzen und daß die Sperr- und Dränagevorrichtung (DK / DK') gerade oder als Kreisbogen in der Tauchtrommel (1) angeordnet ist.Device for minimizing the environmental impact during the galvanic and / or chemical surface treatment of mass parts in submersible drums (1) by returning treatment solutions after the submersible drum (1) has been lifted out of treatment stations (13), characterized in that the submersible drums (1) have one or several locking and drainage devices (DK) are equipped, one or more drip rails (15), and have a position element (9) and that the locking and drainage device (DK / DK ') is arranged straight or as a circular arc in the immersion drum (1) is. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Dränagekanal (DK) durch Sperrleiste (2) Trommelmantel (4) und Dränageleiste (3), oder nur durch Sperrleiste (2) und Trommelmantel (4) gebildet wird.Apparatus according to claim 1, characterized in that the drainage channel (DK) is formed by a locking bar (2) drum jacket (4) and drainage bar (3), or only by a locking bar (2) and drum jacket (4). Vorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Durchmesser der Trommelwand-Perforation (6) vom Dränagekanal (DK) größer ist als die Perforation (5) des Trommelmantels (4).Device according to claims 1 and 2, characterized in that the diameter of the drum wall perforation (6) from the drainage channel (DK) is larger than the perforation (5) of the drum jacket (4). Vorrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß in Verlängerung des Dränagekanals (DK) beide Trommelstirnscheiben (8 und 8') Öffnungen (7) haben.Device according to claims 1 to 3, characterized in that both drum end disks (8 and 8 ') have openings (7) in the extension of the drainage channel (DK). Vorrichtungen nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß Sperr- und Dränagevorrichtungen sowohl an mehreckigen als auch an runden Trommeln angebracht werden.Devices according to claims 1 to 4, characterized in that blocking and drainage devices are attached to both polygonal and round drums. Vorrichtung nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß ein Steuersystem den Trommel-Drehantrieb (16) steuert.Device according to claims 1 to 5, characterized in that a control system controls the rotary drum drive (16). Vorrichtung nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß das Transportsystem (10) eine nach zwei Seiten ausfahrbare Auffangwanne (11) mit Magnetventil (12) besitzt.Device according to claims 1 to 6, characterized in that the transport system (10) has a collecting trough (11) with magnetic valve (12) which can be extended on two sides.
EP91119141A 1990-11-19 1991-11-11 Closing and draining device for drums for electrolytic or chemical surface treatment of articles in bulk Expired - Lifetime EP0486912B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4036836 1990-11-19
DE4036836 1990-11-19

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EP0486912A2 true EP0486912A2 (en) 1992-05-27
EP0486912A3 EP0486912A3 (en) 1994-03-23
EP0486912B1 EP0486912B1 (en) 1996-02-07

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EP91119141A Expired - Lifetime EP0486912B1 (en) 1990-11-19 1991-11-11 Closing and draining device for drums for electrolytic or chemical surface treatment of articles in bulk

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AT (1) ATE134002T1 (en)
DK (1) DK0486912T3 (en)
ES (1) ES2082908T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5830455A (en) * 1992-12-22 1998-11-03 Glaxo Wellcome Inc. Method of treatment using a therapeutic combination of α interferon and free radical scavengers
CN110923794A (en) * 2019-12-30 2020-03-27 裘巧利 Small-size environmental protection sealing barrel-plating device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414566A1 (en) * 1978-01-12 1979-08-10 Schering Ag DEVICE FOR INTRODUCING LIQUIDS OR GAS INTO GALVANIZATION OR CHEMICAL TREATMENT DRUMS
SU1305201A2 (en) * 1985-12-10 1987-04-23 Центральное Конструкторское Бюро Оборудования Гальванопокрытий При Тамбовском Заводе Гальванического Оборудования Apparatus for electroplating small articles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414566A1 (en) * 1978-01-12 1979-08-10 Schering Ag DEVICE FOR INTRODUCING LIQUIDS OR GAS INTO GALVANIZATION OR CHEMICAL TREATMENT DRUMS
SU1305201A2 (en) * 1985-12-10 1987-04-23 Центральное Конструкторское Бюро Оборудования Гальванопокрытий При Тамбовском Заводе Гальванического Оборудования Apparatus for electroplating small articles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 8748, Derwent Publications Ltd., London, GB; Class M11, AN 87-340833 & SU-A-1 305 201 (TAMBOV GALVANISING) 23. April 1987 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5830455A (en) * 1992-12-22 1998-11-03 Glaxo Wellcome Inc. Method of treatment using a therapeutic combination of α interferon and free radical scavengers
CN110923794A (en) * 2019-12-30 2020-03-27 裘巧利 Small-size environmental protection sealing barrel-plating device

Also Published As

Publication number Publication date
DK0486912T3 (en) 1996-03-18
EP0486912A3 (en) 1994-03-23
EP0486912B1 (en) 1996-02-07
ATE134002T1 (en) 1996-02-15
ES2082908T3 (en) 1996-04-01

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