EP2106456A2 - Method and apparatus for coating a hollow element - Google Patents
Method and apparatus for coating a hollow elementInfo
- Publication number
- EP2106456A2 EP2106456A2 EP07819821A EP07819821A EP2106456A2 EP 2106456 A2 EP2106456 A2 EP 2106456A2 EP 07819821 A EP07819821 A EP 07819821A EP 07819821 A EP07819821 A EP 07819821A EP 2106456 A2 EP2106456 A2 EP 2106456A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow body
- coating
- distributor
- coated
- linear
- 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.)
- Withdrawn
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
- 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
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- 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
- C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
- C23C4/16—Wires; Tubes
Definitions
- the invention relates to a device for coating a hollow body.
- a material is applied to a carrier component in a layer which is usually only a few ⁇ m in size, in order, for example, to increase its wear resistance or to impart certain properties (for example electrical conductivity) to the component surface.
- thermal brushing methods in which the coating material is melted and then - regularly atomized by means of a compressed air or other gas stream - and transported to the surface to be coated, are used.
- thermal coating methods are plasma coating, (high speed) flame spraying and arc wire spraying.
- the disclosed therein arc spray unit has a burner shaft in the form of a hollow shaft, which is inserted into the cavity to be coated. At the lower end of the burner shaft there is provided a radially directed nozzle through which the droplets of the molten coating material are discharged by means of compressed air supplied through the hollow interior of the burner shaft.
- a replenishment device with two wire rollers is attached to this.
- the two wires are led parallel to the longitudinal axis of the burner shaft up to the top.
- an arc is generated between the two wire ends by means of an electrical high voltage, which melts the wire material.
- the drops of molten wire are then captured by the flow of compressed air and discharged through the nozzle.
- the replenishment device ensures a continuous supply of the burner with coating material.
- the burner shaft is permanently driven in rotation and simultaneously moved linearly in the hollow body. The superposition of the two movements results in a spiral coating course.
- a disadvantage of the device of DE 19841 617 A1 is the high design complexity associated with the fact that the entire unit of burner shaft and replenishment device must be driven in a rotating manner at high speeds (usually at 100 to 150 revolutions per minute).
- the invention is therefore based on the object of specifying an improved method and an improved apparatus for coating hollow bodies, wherein at least one disadvantage known from the prior art is reduced.
- a device should be specified, which allows a structurally simpler structure.
- the invention is based on the idea that the coating of the hollow body is no longer carried out in a spiral shape by a superimposition of a rotational movement with a linear movement, but in a clocked linear movement.
- the distribution device for the coating material and the hollow body moving linearly relative to one another become.
- at least one linear drive is provided according to the invention, by means of which the distributor and / or the hollow body are moved linearly and thereby moved relative to one another. After reaching the stroke end, which is usually due to reaching the end of the linear extent of the surface to be coated, in a subsequent step, the Verteilvorrich- direction relative to the hollow body is rotated by a certain angle, the rotation preferably around the Axis of the previously performed, linear movement takes place.
- at least one rotary drive for the distributor and / or the hollow body is provided.
- the surface to be coated can be coated in a second section, for which purpose in turn a linear relative movement of the distributor to the hollow body is carried out. This can be done during the return movement of the distributor relative to the hollow body and thus in the opposite direction to the movement during the coating of the first portion.
- the distributor can also inactive, that is, without the discharge of coating material to be returned to the output side of the hollow body and the coating of the second section in a subsequent stroke in the same direction as in the previous coating stroke. In this way, if necessary, a coating can be achieved which was carried out exclusively with the same direction of movement.
- the linear relative movement of the inactive distributor to the hollow body can according to the invention take place before or after the rotational movement.
- the linear and rotary drive can drive the distributor and / or the hollow body directly or indirectly.
- it can be provided to provide a fixing device for the hollow body, by means of which the hollow body is securely and accurately positioned. If a linear and / or rotary drive is provided for a movement of the hollow body, this can also be done by moving the fixing device by means of the drive (s), which in turn carries / carry the hollow body positioned thereon.
- the linear drive is designed as a two- or three-axis linear drive. This makes it possible to move the distributor in one or two further directions in addition to the linear lifting movement, the two or three directions preferably being oriented at right angles to each other.
- the distance between the distributor and the surface to be coated can be set to the optimum for the coating process, but often a decentralized position of the distributor in the hollow body must be taken into account.
- the two- or three-axis linear drive may consist of individual elements, which may be spatially and structurally separated from each other, but are preferably controlled by a central control device.
- Fig. 2 is a diagram showing the movement sequence according to a first embodiment of the invention.
- Fig. 3 is a diagram showing the movement sequence according to a second embodiment of the invention.
- a hollow cylinder 1 is shown, the inner surface is sprayed by means of a spray lance 2 with a molten coating material.
- the structure and operation of the spray lance 2 are basically known from the prior art.
- the spray lance can be moved by means of a linear drive 3 in the hollow cylinder 1 and moved there along the longitudinal axis of the hollow cylinder 1 over its entire longitudinal extent.
- the hollow cylinder 1 itself is connected to a rotary drive 4, which drives this invention intermittently rotating, as is apparent from the movement diagrams of FIGS. 2 and 3.
- FIGS. 2 and 3 show a schematic representation of the movement of the spray lance 2 relative to the hollow body 1 in two alternative embodiments.
- the linear relative movement (s) along the longitudinal axis of the hollow cylinder and on the abscissa axis of the rotation angle ( ⁇ ) are indicated on the ordinate axis.
- the inner surface of the hollow cylinder 1 is coated both during the upward and the downward stroke of the spray lance 2. This is symbolized by the arrows at the vertical sections of the curve in the diagram of FIG.
- the hollow cylinder 1 is rotated by means of the rotary drive 4 by a defined angle ( ⁇ ).
- ⁇ a further coating stroke of the spray lance 2 is carried out.
- the inner surface of the hollow body 1 is coated only in an upward stroke.
- a downward stroke (section of the curve shown in dashed lines) is carried out, in which the spray lance 2 is inactive, ie no coating material is discharged. Only after the completion of the downward stroke is the hollow cylinder 1 rotated by the desired angular amount before a new coating cycle begins.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Coating Apparatus (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Disclosed is a method for coating a rotationally symmetrical hollow element. In said method, a coating material is applied to the surface to be coated by means of a distribution device. The following successive steps are repeatedly carried out until the surface has been entirely coated: the distribution device is moved in a linear direction relative to the hollow element; the distribution device is rotated about a defined angle relative to the hollow element.
Description
Verfahren und Vorrichtung zum Beschichten eines Hohlkörpers Method and device for coating a hollow body
Die Erfindung betrifft eine Vorrichtung zum Beschichten eines Hohlkörpers.The invention relates to a device for coating a hollow body.
Zur Erzeugung von Oberflächen hoher Güte an Bauteilen werden diese vielfach beschichtet. Hierbei wird ein Werkstoff in einer regelmäßig nur wenige μm betragenden Schicht auf ein Trägerbauteil aufgetragen, um beispielsweise dessen Verschleißfestigkeit zu erhöhen oder der Bauteiloberfläche bestimmte Eigenschaften (z.B. elektrische Leitfähigkeit) zu verleihen.To produce surfaces of high quality on components, these are coated many times. In this case, a material is applied to a carrier component in a layer which is usually only a few μm in size, in order, for example, to increase its wear resistance or to impart certain properties (for example electrical conductivity) to the component surface.
Verschiedene Beschichtungsverfahren sind bekannt, wobei insbesondere thermische Besen ichtungsverf ah ren, bei denen der Beschichtungswerkstoff aufgeschmolzen und anschließend - regelmäßig mittels eines Druckluft- oder sonstigen Gasstroms - zerstäubt und auf die zu beschichtende Oberfläche transportiert wird, zum Einsatz kommen. Bekannte thermische Beschichtungsverfahren sind das Plasmabeschichten, das (Hochgeschwindigkeits-)Flammspritzen und das Lichtbogendrahtspritzen.Various coating methods are known, in particular thermal brushing methods in which the coating material is melted and then - regularly atomized by means of a compressed air or other gas stream - and transported to the surface to be coated, are used. Known thermal coating methods are plasma coating, (high speed) flame spraying and arc wire spraying.
Aus DE 198 41 617 A1 ist eine Lichtbogendrahtspritzanlage zur Beschichtung von Hohlkörpern bekannt.From DE 198 41 617 A1 a Lichtbogendrahtspritzanlage for coating of hollow bodies is known.
Die darin offenbarte Lichtbogenspritzanlage weist einen Brennerschaft in Form einer Hohlwelle auf, die in den zu beschichtenden Hohlraum eingeführt wird. An dem unteren Ende des Brennerschafts ist eine radial ausgerichtete Düse vorgesehen, durch die die Tropfen des aufgeschmolzenen Beschichtungswerkstoffs mittels Drucklufts, die durch das hohle Innere des Brennerschafts zugeführt wird, ausgetragen wird.The disclosed therein arc spray unit has a burner shaft in the form of a hollow shaft, which is inserted into the cavity to be coated. At the lower end of the burner shaft there is provided a radially directed nozzle through which the droplets of the molten coating material are discharged by means of compressed air supplied through the hollow interior of the burner shaft.
Oberhalb des Brennerschafts ist eine Nachschubeinrichtung mit zwei Drahtrollen an diesem befestigt. Ausgehend von den Drahtrollen werden die zwei Drähte parallel zur Längsachse des Brennerschafts bis zu dessen Spitze geführt. Dort wird mittels einer elektrischen Hochspannung ein Lichtbogen zwischen den zwei Drahtenden erzeugt, der das Drahtmaterial aufschmilzt. Die Tropfen des aufgeschmolzenen Drahts werden dann von der Druckluftströmung erfasst und durch die Düse ausgetragen. Die Nachschubeinrichtung sorgt für eine kontinuierliche Versorgung des Brenners mit Beschichtungsmaterial.
Während des Beschichtungsprozesses wird der Brennerschaft permanent rotatorisch angetrieben und gleichzeitig linear in dem Hohlkörper bewegt. Durch die Überlagerung der zwei Bewegungen ergibt sich ein spiralförmiger Beschichtungsverlauf.Above the burner shaft, a replenishment device with two wire rollers is attached to this. Starting from the wire rollers, the two wires are led parallel to the longitudinal axis of the burner shaft up to the top. There, an arc is generated between the two wire ends by means of an electrical high voltage, which melts the wire material. The drops of molten wire are then captured by the flow of compressed air and discharged through the nozzle. The replenishment device ensures a continuous supply of the burner with coating material. During the coating process, the burner shaft is permanently driven in rotation and simultaneously moved linearly in the hollow body. The superposition of the two movements results in a spiral coating course.
Nachteilig an der Vorrichtung der DE 19841 617 A1 ist der hohe konstruktive Aufwand, der damit verbunden ist, dass die gesamte Einheit aus Brennerschaft und Nachschubeinrichtung permanent und unter hohen Drehzahlen (in der Regel mit 100 bis 150 Umdrehungen pro Minute) rotierend angetrieben werden muss.A disadvantage of the device of DE 19841 617 A1 is the high design complexity associated with the fact that the entire unit of burner shaft and replenishment device must be driven in a rotating manner at high speeds (usually at 100 to 150 revolutions per minute).
Aus dem Stand der Technik ist ferner bekannt, anstelle des Brennerschafts den Hohlkörper selbst rotierend anzutreiben. Eine solche Konstellation hat sich für Hohlkörper bewährt, die klein, leicht und insbesondere rotationssymmetrisch ausgebildet sind, so dass während der Rotation keine großen Unwuchten entstehen. Bei komplexen und nicht rotationssymmetrischen Bauteilen, beispielsweise bei Zylinderkurbelgehäusen ist diese Vorgehensweise mit einem großen Aufwand für das Auswuchten des Bauteils verbunden. Bei Zylinderkurbelgehäusen kommt erschwerend hinzu, dass diese in der Regel mehrere zu beschichtende Zylinder aufweisen, wobei sich mit jedem Zylinder auch die Rotationsachse ändert, was ein erneutes Auswuchten der Einheit erfordert.From the prior art is also known, instead of the burner shaft to drive the hollow body itself rotating. Such a constellation has been proven for hollow body, which are small, light and in particular rotationally symmetrical, so that no large imbalances arise during the rotation. For complex and non-rotationally symmetric components, such as cylinder crankcases, this approach is associated with a great deal of effort for the balancing of the component. In the case of cylinder crankcases, it is aggravating that they generally have a plurality of cylinders to be coated, with each cylinder also changing the axis of rotation, which requires a re-balancing of the unit.
Ausgehend von diesem Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde, ein verbessertes Verfahren und eine verbesserte Vorrichtung zum Beschichten von Hohlkörpern anzugeben, wobei zumindest ein aus dem Stand der Technik bekannter Nachteil vermindert wird. Insbesondere soll eine Vorrichtung angegeben werden, die einen konstruktiv einfacheren Aufbau ermöglicht.Starting from this prior art, the invention is therefore based on the object of specifying an improved method and an improved apparatus for coating hollow bodies, wherein at least one disadvantage known from the prior art is reduced. In particular, a device should be specified, which allows a structurally simpler structure.
Diese Aufgabe wird durch ein Verfahren und eine Vorrichtung gemäß den unabhängigen Patentansprüchen gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This object is achieved by a method and a device according to the independent patent claims. Advantageous embodiments are the subject of the dependent claims.
Der Erfindung liegt der Gedanke zugrunde, die Beschichtung des Hohlkörpers nicht mehr spiralförmig durch eine Überlagerung einer Rotations- mit einer Linearbewegung, sondern in einer getakteten linearen Bewegung durchzuführen.The invention is based on the idea that the coating of the hollow body is no longer carried out in a spiral shape by a superimposition of a rotational movement with a linear movement, but in a clocked linear movement.
Erfindungsgemäß ist somit vorgesehen, die zu beschichtende Fläche zunächst in einem ersten linear verlaufenden Bereich zu beschichten, wobei die Verteilvorrichtung für den Beschichtungswerkstoff und der Hohlkörper linear zueinander verfahren
werden. Hierzu ist erfindungsgemäß mindestens ein Linearantrieb vorgesehen, mittels dessen die Verteilvorrichtung und/oder der Hohlkörper linear verfahren und dadurch relativ zueinander bewegt werden. Nach dem Erreichen des Hubendes, der in der Regel durch das Erreichen des Endes der linearen Erstreckung der zu beschichtenden Fläche begründet ist, wird in einem nachfolgenden Schritt die Verteilvorrich- tung relativ zu dem Hohlkörper um einen bestimmten Winkelbetrag rotiert, wobei die Rotation vorzugsweise um die Achse der zuvor ausgeführten, linearen Bewegung erfolgt. Hierzu ist mindestens ein Rotationsantrieb für die Verteilvorrichtung und/oder den Hohlkörper vorgesehen.According to the invention, it is thus provided to first coat the surface to be coated in a first linearly extending region, the distribution device for the coating material and the hollow body moving linearly relative to one another become. For this purpose, at least one linear drive is provided according to the invention, by means of which the distributor and / or the hollow body are moved linearly and thereby moved relative to one another. After reaching the stroke end, which is usually due to reaching the end of the linear extent of the surface to be coated, in a subsequent step, the Verteilvorrich- direction relative to the hollow body is rotated by a certain angle, the rotation preferably around the Axis of the previously performed, linear movement takes place. For this purpose, at least one rotary drive for the distributor and / or the hollow body is provided.
Nach der Rotation um einen definierten Winkel kann die zu beschichtende Fläche in einem zweiten Abschnitt beschichtet werden, wozu wiederum eine lineare Relativbewegung der Verteilvorrichtung zu dem Hohlkörper ausgeführt wird. Dies kann während der Rückbewegung der Verteilvorrichtung relativ zu dem Hohlkörper und somit in entgegen gesetzter Richtung zu der Bewegung beim Beschichten des ersten Abschnitts erfolgen. Alternativ kann die Verteilvorrichtung auch inaktiv, dass heißt ohne den Austrag von Beschichtungswerkstoffs auf die Ausgangsseite des Hohlkörpers zurückgefahren werden und die Beschichtung des zweiten Abschnitts in einem darauf folgenden Hub in gleicher Richtung wie beim vorherigen Beschichtungshub erfolgen. Auf diese Weise kann nach Bedarf eine Beschichtung erzielt werden, die ausschließlich mit derselben Bewegungsrichtung ausgeführt wurde.After rotation about a defined angle, the surface to be coated can be coated in a second section, for which purpose in turn a linear relative movement of the distributor to the hollow body is carried out. This can be done during the return movement of the distributor relative to the hollow body and thus in the opposite direction to the movement during the coating of the first portion. Alternatively, the distributor can also inactive, that is, without the discharge of coating material to be returned to the output side of the hollow body and the coating of the second section in a subsequent stroke in the same direction as in the previous coating stroke. In this way, if necessary, a coating can be achieved which was carried out exclusively with the same direction of movement.
Die lineare Relativbewegung der inaktiven Verteilvorrichtung zu dem Hohlkörper kann erfindungsgemäß vor während oder nach der Rotationsbewegung erfolgen.The linear relative movement of the inactive distributor to the hollow body can according to the invention take place before or after the rotational movement.
Die zuvor beschriebenen Verfahrensschritte werden so häufig wiederholt, bis die gesamte zu beschichtende Fläche bearbeitet wurde, wobei die Fläche nicht zwangsläufig vollständig zusammenhängend ausgebildet sein muss, sondern durch das getaktete Beschichten auch Flächenabschnitte, die nicht beschichtet werden sollen, auf einfache Weise ausgelassen werden können.The method steps described above are repeated so often until the entire surface to be coated has been processed, wherein the surface does not necessarily have to be completely contiguous, but by the clocked coating even surface portions that are not to be coated, can be easily omitted.
Durch eine entsprechende Auslegung der Steuerungsmittel des Rotationsantriebs kann eine Überdeckung von zwei aufeinander folgenden beschichteten Abschnitten beliebig gewählt werden. Durch eine entsprechend große Überdeckung kann in einem Beschichtungsvorgang auch eine mehrlagige Beschichtung erzielt werden.
Der Linear- und Rotationsantrieb kann die Verteilvorrichtung und/oder den Hohlkörper direkt oder indirekt antreiben. Insbesondere kann vorgesehen sein, eine Fixiervorrichtung für den Hohlkörper vorzusehen, mittels derer der Hohlkörper sicher und genau positioniert wird. Wird ein Linear- und/oder Rotationsantrieb für einen Bewegung des Hohlkörpers vorgesehen, kann dies auch dadurch erfolgen, dass die Fixiervorrichtung mittels des Antriebs/der Antriebe bewegt wird, die wiederum den darauf positionierten Hohlkörper mitführt/mitführen.By appropriate design of the control means of the rotary drive, an overlap of two successive coated sections can be chosen arbitrarily. By a correspondingly large coverage, a multilayer coating can be achieved in a coating process. The linear and rotary drive can drive the distributor and / or the hollow body directly or indirectly. In particular, it can be provided to provide a fixing device for the hollow body, by means of which the hollow body is securely and accurately positioned. If a linear and / or rotary drive is provided for a movement of the hollow body, this can also be done by moving the fixing device by means of the drive (s), which in turn carries / carry the hollow body positioned thereon.
In einer vorteilhaften Ausführungsform der vorliegenden Erfindung ist der Linearantrieb als zwei- oder dreiachsiger Linearantrieb ausgebildet. Dies ermöglicht, die Verteilvorrichtung zusätzlich zu der linearen Hubbewegung in einer oder zwei weiteren Richtungen zu verfahren, wobei die zwei oder drei Richtungen vorzugsweise rechtwinklig zueinander ausgerichtet sind. Durch eine solche Ausgestaltung der erfindungsgemäßen Vorrichtung kann der Abstand zwischen der Verteilvorrichtung und der zu beschichtenden Oberfläche auf das für den Beschichtungsprozess optimale Maß eingestellt werden, wobei jedoch häufig eine dezentrale Position der Verteilvorrichtung in dem Hohlkörper in Kauf genommen werden muss. Während dies bei einer Vorrichtung, wie sie aus dem Stand der Technik bekannt ist, aufgrund der permanenten Rotation der Verteilvorrichtung oder des Hohlkörpers problematisch ist, da sich ein kontinuierlich zwischen einem maximalen und einem minimalen Wert ändernder Abstand ergäbe, der nur unter großem Aufwand kompensiert werden könnte, ist eine solche Kompensation bei einer erfindungsgemäßen Vorrichtung deutlich einfacher zu erreichen. Hierbei müsste der Abstand lediglich während des getakteten Rotierens der Verteilvorrichtung relativ zu dem Hohlkörper korrigiert werden. Während des Be- schichtungsvorgangs, bei dem die Verteilvorrichtung vorzugsweise parallel zu der Oberfläche des Hohlkörpers verfahren wird, wäre eine solche Kompensation dagegen nicht erforderlich.In an advantageous embodiment of the present invention, the linear drive is designed as a two- or three-axis linear drive. This makes it possible to move the distributor in one or two further directions in addition to the linear lifting movement, the two or three directions preferably being oriented at right angles to each other. By such an embodiment of the device according to the invention, the distance between the distributor and the surface to be coated can be set to the optimum for the coating process, but often a decentralized position of the distributor in the hollow body must be taken into account. While this is problematic in a device known from the prior art due to the permanent rotation of the distributor or the hollow body, as would result in a continuously changing between a maximum and a minimum value changing distance, which are compensated only with great effort could, such compensation in a device according to the invention is much easier to achieve. In this case, the distance would have to be corrected only during the clocked rotation of the distributor relative to the hollow body. On the other hand, during the coating process, in which the distributing device is preferably moved parallel to the surface of the hollow body, such a compensation would not be necessary.
Selbstverständlich kann der zwei- oder dreiachsige Linearantrieb aus einzelnen Elementen bestehen, die räumlich und baulich voneinander getrennt sein können, vorzugsweise jedoch von einer zentralen Steuervorrichtung gesteuert werden.Of course, the two- or three-axis linear drive may consist of individual elements, which may be spatially and structurally separated from each other, but are preferably controlled by a central control device.
Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. In den Zeichnungen zeigt
Fig. 1 eine erfindungsgemäße Vorrichtung zum Beschichten eines Hohlkörpers in einer schematischen Darstellung,The invention will be explained in more detail with reference to an embodiment shown in the drawings. In the drawings shows 1 shows a device according to the invention for coating a hollow body in a schematic representation,
Fig. 2 in einem Diagramm eine Darstellung des Bewegungsablaufs gemäß einer ersten Ausführungsform der Erfindung undFig. 2 is a diagram showing the movement sequence according to a first embodiment of the invention and
Fig. 3 in einem Diagramm eine Darstellung des Bewegungsablaufs gemäß einer zweiten Ausführungsform der Erfindung.Fig. 3 is a diagram showing the movement sequence according to a second embodiment of the invention.
In Fig. 1 ist ein Hohlzylinder 1 dargestellt, dessen Innenfläche mittels einer Sprühlanze 2 mit einem aufgeschmolzenen Beschichtungswerkstoff besprüht wird.In Fig. 1, a hollow cylinder 1 is shown, the inner surface is sprayed by means of a spray lance 2 with a molten coating material.
Der Aufbau sowie die Funktionsweise der Sprühlanze 2 sind grundsätzlich aus dem Stand der Technik bekannt.The structure and operation of the spray lance 2 are basically known from the prior art.
Die Sprühlanze kann mittels eines Linearantriebs 3 in den Hohlzylinder 1 verfahren und dort entlang der Längsachse des Hohlzylinders 1 über dessen gesamte Längserstreckung bewegt werden.The spray lance can be moved by means of a linear drive 3 in the hollow cylinder 1 and moved there along the longitudinal axis of the hollow cylinder 1 over its entire longitudinal extent.
Der Hohlzylinder 1 selbst ist mit einem Rotationsantrieb 4 verbunden, der diesen erfindungsgemäß intermittierend drehend antreibt, wie es sich aus dem Bewegungsdiagrammen der Fig. 2 und 3 ergibt.The hollow cylinder 1 itself is connected to a rotary drive 4, which drives this invention intermittently rotating, as is apparent from the movement diagrams of FIGS. 2 and 3.
Die Steuerung der beiden Antriebe 3 und 4 erfolgt mittels einer Steuervorrichtung 5.The control of the two drives 3 and 4 by means of a control device. 5
Die Fig. 2 und 3 zeigen in einer schematischen Darstellung den Bewegungsablauf der Sprühlanze 2 relativ zu dem Hohlkörper 1 in zwei alternativen Ausführungsformen. Dabei ist auf der Ordinatenachse die lineare Relativbewegung (s) entlang der Längsachse des Hohlzylinders und auf der Abszissenachse der Drehwinkel (α) angegeben.2 and 3 show a schematic representation of the movement of the spray lance 2 relative to the hollow body 1 in two alternative embodiments. In this case, the linear relative movement (s) along the longitudinal axis of the hollow cylinder and on the abscissa axis of the rotation angle (α) are indicated on the ordinate axis.
Bei der Steuerung der Vorrichtung gemäß Fig. 2 wird die Innenfläche des Hohlzylinders 1 sowohl beim Aufwärts- als auch beim Abwärtshub der Sprühlanze 2 beschichtet. Dies wird durch die Pfeile an den vertikalen Abschnitten der Kurve in dem Diagramm gemäß Fig. 2 symbolisiert. Nach jedem Beschichtungshub wird der Hohlzylinder 1 mittels des Rotationsantriebs 4 um einen definierten Winkelbetrag (Δα) rotiert. Daraufhin wird ein weiterer Beschichtungshub der Sprühlanze 2 ausgeführt.
Bei der Steuerung der Vorrichtung gemäß Fig. 3 wird die Innenfläche des Hohlkörpers 1 lediglich bei einem Hub in Aufwärtsrichtung beschichtet. Direkt im Anschluss an den Aufwärtshub wird ein Abwärtshub (gestrichelt dargestellter Abschnitt der Kurve) ausgeführt, bei dem die Sprühlanze 2 inaktiv ist, dass heißt kein Beschichtungs- werkstoff ausgetragen wird. Erst nach Vollendung des Abwärtshubs wird der Hohlzy- linder 1 um den gewünschten Winkelbetrag gedreht, bevor ein neuer Beschichtungs- zyklus beginnt.
In the control of the device according to FIG. 2, the inner surface of the hollow cylinder 1 is coated both during the upward and the downward stroke of the spray lance 2. This is symbolized by the arrows at the vertical sections of the curve in the diagram of FIG. After each coating stroke, the hollow cylinder 1 is rotated by means of the rotary drive 4 by a defined angle (Δα). Subsequently, a further coating stroke of the spray lance 2 is carried out. In the control of the device according to FIG. 3, the inner surface of the hollow body 1 is coated only in an upward stroke. Immediately after the upward stroke, a downward stroke (section of the curve shown in dashed lines) is carried out, in which the spray lance 2 is inactive, ie no coating material is discharged. Only after the completion of the downward stroke is the hollow cylinder 1 rotated by the desired angular amount before a new coating cycle begins.
Claims
1. Verfahren zum Beschichten eines Hohlkörpers (1), wobei ein Beschichtungswerk- stoff mittels einer Verteilvorrichtung (2) auf die zu beschichtenden Oberfläche aufgebracht wird, gekennzeichnet durch, die bis zur vollständigen Beschichtung der Oberfläche wiederholt nachfolgend ablaufenden Schritte:1. A method for coating a hollow body (1), wherein a coating material is applied by means of a distributing device (2) on the surface to be coated, characterized by, the repeated steps until complete coating of the surface following steps:
- relatives lineares Verfahren der Verteilvorrichtung (2) zu dem Hohlkörper (1),Relative linear method of the distribution device (2) to the hollow body (1),
- relatives Rotieren der Verteilvorrichtung (2) um einen definierten Winkel zu dem Hohlkörper (1).- Relative rotation of the distributor (2) by a defined angle to the hollow body (1).
2. Verfahren gemäß Anspruch 1 , dadurch gekennzeichnet, dass die Verteilvorrichtung (2) linear und/oder rotatorisch bewegt wird.2. The method according to claim 1, characterized in that the distribution device (2) is moved linearly and / or rotationally.
3. Verfahren gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Hohlkörper (1) linear und/oder rotatorisch bewegt wird.3. The method according to claim 1 or 2, characterized in that the hollow body (1) is moved linearly and / or rotationally.
4. Vorrichtung zum Beschichten eines Hohlkörpers (1), mit einer in den Hohlkörper (1) verfahrbaren Verteilvorrichtung (2) mittels der ein Beschichtungswerkstoff auf die zu beschichtende Oberfläche des Hohlkörpers (1) aufgebracht wird, und einem Rotations- (4) und einem Linearantrieb (3) für die Verteilvorrichtung (2) und/oder den Hohlkörper (1), gekennzeichnet durch, Steuerungsmittel (5) zur Steuerung des Rotations- (4) und Linearantriebs (3) zur Durchführung der bis zur vollständigen Beschichtung der Oberfläche wiederholt nachfolgend ablaufenden Bewegungsabläufe:4. An apparatus for coating a hollow body (1), with a in the hollow body (1) movable distributor (2) by means of a coating material on the surface to be coated of the hollow body (1) is applied, and a rotation (4) and a Linear drive (3) for the distributor (2) and / or the hollow body (1), characterized by, control means (5) for controlling the rotary (4) and linear drive (3) for performing the repeated until complete coating of the surface below running movements:
- relatives lineares Verfahren der Verteilvorrichtung (2) zu dem Hohlkörper (1),Relative linear method of the distribution device (2) to the hollow body (1),
- relatives Rotieren der Verteilvorrichtung (2) um einen definierten Winkel zu dem Hohlkörper (1).- Relative rotation of the distributor (2) by a defined angle to the hollow body (1).
5. Vorrichtung gemäß Anspruch 4, dadurch gekennzeichnet, dass der Linearantrieb als zwei- oder dreiachsiger Linearantrieb ausgebildet ist. 5. The device according to claim 4, characterized in that the linear drive is designed as a two- or three-axis linear drive.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610061652 DE102006061652A1 (en) | 2006-12-27 | 2006-12-27 | Method for coating a hollow body comprises moving a distributing device relative to the hollow body in a linear manner and rotating the distributing device about a defined angle relative to the hollow body |
| PCT/EP2007/009871 WO2008080449A2 (en) | 2006-12-27 | 2007-11-15 | Method and apparatus for coating a hollow element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2106456A2 true EP2106456A2 (en) | 2009-10-07 |
Family
ID=38884918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07819821A Withdrawn EP2106456A2 (en) | 2006-12-27 | 2007-11-15 | Method and apparatus for coating a hollow element |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2106456A2 (en) |
| JP (1) | JP5264767B2 (en) |
| CN (1) | CN101553592B (en) |
| DE (1) | DE102006061652A1 (en) |
| WO (1) | WO2008080449A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2685205C1 (en) * | 2015-07-16 | 2019-04-16 | Тоё Сэйкан Ко., Лтд. | Coating application method and device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021518B (en) * | 2010-10-26 | 2012-05-30 | 中国航天科技集团公司第五研究院第五一○研究所 | Method and device for coating film on surface of inner cavity by using pulse laser process |
| FR2971260B1 (en) * | 2011-02-03 | 2021-02-19 | Peugeot Citroen Automobiles Sa | PROCESS FOR COATING A CYLINDER CRANKCASE DRUM BY MOVING THE CYLINDER ALONG THE SHAFT OF THE CORRESPONDING VEHICLE AND MACHINE |
| EP2535437A1 (en) * | 2011-06-16 | 2012-12-19 | RH Optronic ApS | A method for plasma-coating of rolls and a plasma-coated roll |
| EP2599890A1 (en) * | 2011-12-01 | 2013-06-05 | Siemens Aktiengesellschaft | Non-flaking ceramic coat and coating system |
| DE102012021859B4 (en) * | 2012-11-07 | 2018-10-18 | Daimler Ag | Process for the thermal coating of cylinder surfaces |
| DE102013014174A1 (en) | 2013-08-26 | 2015-03-12 | Bayerische Motoren Werke Aktiengesellschaft | Device for coating cylinder walls |
| CN106086758B (en) * | 2016-07-22 | 2018-10-23 | 芜湖鼎瀚再制造技术有限公司 | A kind of multifunctional supersonic spray equipment |
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| US4201341A (en) * | 1977-07-22 | 1980-05-06 | Castolin Gmbh | Device for automatic depositing by welding |
| DE3617833C1 (en) * | 1986-05-27 | 1987-09-03 | Mannesmann Ag | Process for the production of rotationally symmetrical hollow bodies |
| US20040231596A1 (en) * | 2003-05-19 | 2004-11-25 | George Louis C. | Electric arc spray method and apparatus with combustible gas deflection of spray stream |
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| JPS5784778A (en) * | 1980-11-17 | 1982-05-27 | Toyota Motor Corp | Plasma flame spraying method for inner surface of hole and apparatus therefor |
| DE3140188A1 (en) * | 1981-10-09 | 1983-04-28 | Friedrich Theysohn GmbH, 3012 Langenhagen | Process for producing a wear-resistant layer in a barrel of a twin-screw extruder |
| JPS61186466A (en) * | 1985-02-15 | 1986-08-20 | Purazumeito:Kk | Plasma thermal spraying method of inner wall of tubular structural body |
| DE4208023C2 (en) * | 1991-06-10 | 1994-04-07 | Banning Gmbh J | Method and device for producing rotationally symmetrical metal parts |
| JPH11200008A (en) * | 1998-01-21 | 1999-07-27 | Chugoku Electric Power Co Inc:The | Plasma thermal-spraying method onto inner surface of closed space having inlet/outlet |
| DE19841617A1 (en) | 1998-09-11 | 2000-03-23 | Daimler Chrysler Ag | Apparatus for thermally coating the inner walls of e.g. car cylinder bores has a hollow wire electric arc inner burner having a burner head with two wires extending from the feeding mechanism |
| DE19941564A1 (en) * | 1999-02-19 | 2000-08-31 | Volkswagen Ag | Process for processing a surface of a component |
| US6391251B1 (en) * | 1999-07-07 | 2002-05-21 | Optomec Design Company | Forming structures from CAD solid models |
| US20060003095A1 (en) * | 1999-07-07 | 2006-01-05 | Optomec Design Company | Greater angle and overhanging materials deposition |
| DE10230847B3 (en) * | 2002-07-04 | 2004-02-05 | Universität Stuttgart Institut für Fertigungstechnologie keramischer Bauteile | Process and device for the internal coating of cavities by thermal spraying |
| JP2006070315A (en) * | 2004-09-01 | 2006-03-16 | Tosoh Corp | Plasma thermal spraying apparatus |
-
2006
- 2006-12-27 DE DE200610061652 patent/DE102006061652A1/en not_active Ceased
-
2007
- 2007-11-15 CN CN2007800449396A patent/CN101553592B/en not_active Expired - Fee Related
- 2007-11-15 JP JP2009543349A patent/JP5264767B2/en not_active Expired - Fee Related
- 2007-11-15 EP EP07819821A patent/EP2106456A2/en not_active Withdrawn
- 2007-11-15 WO PCT/EP2007/009871 patent/WO2008080449A2/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4201341A (en) * | 1977-07-22 | 1980-05-06 | Castolin Gmbh | Device for automatic depositing by welding |
| DE3617833C1 (en) * | 1986-05-27 | 1987-09-03 | Mannesmann Ag | Process for the production of rotationally symmetrical hollow bodies |
| US20040231596A1 (en) * | 2003-05-19 | 2004-11-25 | George Louis C. | Electric arc spray method and apparatus with combustible gas deflection of spray stream |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2685205C1 (en) * | 2015-07-16 | 2019-04-16 | Тоё Сэйкан Ко., Лтд. | Coating application method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010514922A (en) | 2010-05-06 |
| WO2008080449A3 (en) | 2009-05-22 |
| JP5264767B2 (en) | 2013-08-14 |
| WO2008080449A2 (en) | 2008-07-10 |
| CN101553592B (en) | 2012-01-11 |
| DE102006061652A1 (en) | 2008-07-03 |
| CN101553592A (en) | 2009-10-07 |
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