DE102009019675B4 - Thermal coating apparatus and method for coating - Google Patents
Thermal coating apparatus and method for coating Download PDFInfo
- Publication number
- DE102009019675B4 DE102009019675B4 DE102009019675A DE102009019675A DE102009019675B4 DE 102009019675 B4 DE102009019675 B4 DE 102009019675B4 DE 102009019675 A DE102009019675 A DE 102009019675A DE 102009019675 A DE102009019675 A DE 102009019675A DE 102009019675 B4 DE102009019675 B4 DE 102009019675B4
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- Germany
- Prior art keywords
- coating device
- particle gun
- coating
- gas
- cylinder
- 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.)
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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
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
- B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
- B05B13/0636—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
- B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
- B05B7/226—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc the material being originally a particulate material
-
- 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
- C23C4/131—Wire arc spraying
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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)
- Electromagnetism (AREA)
- Nozzles (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
Thermische Beschichtungsvorrichtung (3), die zur Beschichtung der Lauffläche einer Zylinderwandung eines Kurbelgehäuses vorgesehen ist, mit einer drehbar um eine Drehachse angeordneten Partikelkanone (5), welche Metallpartikel (6) quer zu der Drehachse (4) nach außen auf eine zu beschichtende Oberfläche (2) katapultiert, dadurch gekennzeichnet, dass ein Vorratsbehälter (7) für Gas vorgesehen ist, der sich mit der Partikelkanone (5) mitdreht.Thermal coating device (3), which is provided for coating the running surface of a cylinder wall of a crankcase, with a particle gun (5) rotatably arranged about a rotation axis, which metal particles (6) transversely to the axis of rotation (4) outwardly onto a surface to be coated ( 2) catapulted, characterized in that a storage container (7) is provided for gas, which rotates with the particle gun (5).
Description
Die vorliegende Erfindung betrifft eine thermische Beschichtungsvorrichtung gemäß dem Oberbegriff des Patentanspruches 1 und ein Verfahren zum Beschichten von Zylinderwandungen eines Kurbelgehäuses eines Verbrennungsmotors gemäß dem Oberbegriff des Patentanspruches 2.The present invention relates to a thermal coating device according to the preamble of claim 1 and a method for coating cylinder walls of a crankcase of an internal combustion engine according to the preamble of
Es ist bekannt, Zylinderlaufflächen von Kurbelgehäusen für Verbrennungsmotoren mittels einer thermischen Beschichtungseinrichtung, wie z. B. Lichtbogendrahtspritzvorrichtung, zu beschichten. Hierfür eingesetzte Lichtbogendrahtspritzvorrichtungen weisen üblicherweise eine drehbar und entlang der Drehachse verschiebbar angeordnete Partikelkanone auf, die in den zu beschichtenden Zylinder eingefahren und darin rotiert wird. Die Partikelkanone katapultiert feinste Metallpartikel im Wesentlichen quer zur Drehachse bzw. radial nach außen auf die zu beschichtende Zylinderlauffläche. Zur Aufrechterhaltung des thermischen Beschichtungsprozesses werden ein oder mehrere Druckgase, wie z. B. Druckluft, N2, Ar, O2 , He, H2 o. ä. benötigt. Da die Partikelkanone, die auch als ”Drehlanze” bezeichnet wird, drehbar und längs verschieblich angeordnet ist, sind für die Gaszuführung technisch aufwändige ”Drehdichtungen” zwischen der räumlich im Wesentlichen fest angeordneten Gaszuführung und der drehbar und verschiebbar angeordneten Partikelkanone erforderlich. In Abhängigkeit vom Gasdruck (z. B. 0,1 bar, 5 bar, 10 bar oder 50 bar) kommen dabei technisch sehr aufwändige Ringdichtungen zum Einsatz.It is known cylinder surfaces of crankcases for internal combustion engines by means of a thermal coating device, such. B. arc wire spraying device to coat. For this purpose used Lichtbogendrahtspritzvorrichtungen usually have a rotatable and along the axis of rotation slidably mounted particle gun, which is retracted into the cylinder to be coated and rotated therein. The particle gun catapults finest metal particles substantially transversely to the axis of rotation or radially outwards onto the cylinder surface to be coated. To maintain the thermal coating process, one or more compressed gases, such. B. compressed air, N 2 , Ar, O 2 , He, H 2 o. Since the particle gun, which is also referred to as a "rotary lance", is rotatable and longitudinally displaceable, technically complex "rotational seals" are required between the spatially substantially fixed gas supply and the rotatable and displaceably arranged particle gun for the gas supply. Depending on the gas pressure (eg 0.1 bar, 5 bar, 10 bar or 50 bar), technically very complex ring seals are used.
Trotz großen Aufwands für die Abdichtung bleibt eine derartige Lichtbogendrahtspritzvorrichtung störungsanfällig, da die Dichtungen früher oder später verschleißen und undicht werden, was zeitaufwändige Reparaturen nach sich zieht. Möchte man den Arbeitsgasdruck erhöhen, so setzt dies in der Regel einen Austausch der Dichtungen voraus, was wiederum zu Stillstandszeiten der Anlage führt. Der Dichtungsverschleiß ist auch insofern problematisch, als Teilstücke der Dichtungen abreißen und über das Druckgas in die herzustellende Beschichtung gelangen können, was dann zu Fehlstellen in der herzustellenden Beschichtung führt.Despite the great expense of sealing, such an arc wire sprayer remains susceptible to failure, as sooner or later the seals will wear and leak, resulting in time-consuming repairs. If you want to increase the working gas pressure, this usually requires an exchange of seals, which in turn leads to downtime of the system. The seal wear is also problematic in that tear off as sections of the seals and can get over the compressed gas in the coating to be produced, which then leads to defects in the coating to be produced.
Aufgabe der Erfindung ist es, die Probleme, die aus den bislang verwendeten Drehdichtungen resultieren, zu vermeiden.The object of the invention is to avoid the problems resulting from the rotary seals used so far.
Diese Aufgabe wird durch die Merkmale der Patentansprüche 1 bzw. 2 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.This object is solved by the features of
Das Grundprinzip der Erfindung besteht darin, die für einen Beschichtungszyklus benötigte Gasmenge in einem Tank, der in bzw. an der sich drehenden Partikelkanone angeordnet ist, vorzuhalten und zyklisch zwischen einzelnen Beschichtungsvorgängen, d. h. wenn die Partikelkanone steht oder zumindest nicht rotiert wird, Gas nachzutanken. Im einzelnen werden folgende Schritte durchlaufen:
- – Andocken einer Befülleinrichtung an den Druckgastank der Partikelkanone innerhalb von 1 bis 3 Sekunden.
- – Befüllen des Druckgastanks innerhalb eines Verfahrtakts von ca. 30 Sekunden, mit einem Druck von z. B. 3 bis 20 bar und einem Volumen von z. B. 1 bis 10 Liter.
- – Abdocken der Befülleinrichtung.
- – Beschichten einer zu beschichtenden Oberfläche unter Verwendung des im Druckgastank gespeicherten Druckgases.
- – Positionieren der Partikelkanone und des Druckgastanks in Befüllposition, wobei der Druckgastank am Ende des Beschichtungszyklus nahezu leer ist.
- – Erneutes Andocken der Befülleinrichtung und Nachfüllen von Druckgas für den nächsten Beschichtungszyklus.
- - Docking a filling device to the compressed gas tank of the particle gun within 1 to 3 seconds.
- - filling the compressed gas tank within a movement of about 30 seconds, with a pressure of z. B. 3 to 20 bar and a volume of z. B. 1 to 10 liters.
- - Undocking the filling device.
- - Coating a surface to be coated using the pressure gas stored in the compressed gas tank.
- - Positioning of the particle gun and the compressed gas tank in the filling position, wherein the compressed gas tank at the end of the coating cycle is almost empty.
- - Re-docking of the filling and refilling of compressed gas for the next coating cycle.
Beim Beschichten von Zylinderlaufflächen muss die Partikelkanone in den Zylinder eingefahren und dort rotiert werden. Am Ende des Beschichtungsvorgangs muss die Partikelkanone wieder aus dem Zylinder herausgefahren werden. Die Phase des Herausfahrens der Partikelkanone aus dem Zylinder kann zum Nachtanken von Druckgas genutzt werden. Die Partikelkanone muss also beim Nachtanken nicht notwendigerweise absolut stillstehen. Es genügt, wenn die Partikelkanone rotatorisch stillsteht. Sie kann also während des Nachtankvorgangs durchaus axial verfahren werden.When coating cylinder surfaces, the particle gun must be retracted into the cylinder and rotated there. At the end of the coating process, the particle gun must be moved out of the cylinder again. The phase of moving the particle gun out of the cylinder can be used to refuel compressed gas. The particle gun does not necessarily have to stand still when refueling. It is sufficient if the particle gun is stationary in rotation. It can therefore be moved axially during the refueling process.
Zusammenfassend werden mit der Erfindung insbesondere folgende Vorteile erreicht:
- – Einfachere Konstruktion, da auf Drehdichtungen verzichtet werden kann.
- – Geringerer Verschleiß und dementsprechend höhere Standzeit und Verfügbarkeit der Beschichtungsvorrichtung.
- – Eine Variation des Gasdrucks ist innerhalb der zulässigen Festigkeitsgrenzen des Druckgastanks ohne weiteres möglich.
- – Kein Verschmutzen des Druckgases mehr, da die ”Kupplung” zum Andocken der Befülleinrichtung außerhalb bzw. entfernt vom eigentlichen Beschichtungsprozess ist.
- - Simpler design, as can be dispensed with rotary seals.
- - Less wear and therefore higher durability and availability of the coating device.
- - A variation of the gas pressure is readily possible within the allowable strength limits of the pressurized gas tank.
- - No more pollution of the compressed gas, since the "clutch" for docking the filling is outside or removed from the actual coating process.
Im Folgenden wird die Erfindung im Zusammenhang mit der Zeichnung näher erläutert. Es zeigen:In the following the invention will be explained in connection with the drawing. Show it:
Bei dem in
Beim Ausführungsbeispiel der
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102009019675A DE102009019675B4 (en) | 2009-04-30 | 2009-04-30 | Thermal coating apparatus and method for coating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102009019675A DE102009019675B4 (en) | 2009-04-30 | 2009-04-30 | Thermal coating apparatus and method for coating |
Publications (2)
Publication Number | Publication Date |
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DE102009019675A1 DE102009019675A1 (en) | 2010-11-18 |
DE102009019675B4 true DE102009019675B4 (en) | 2011-03-24 |
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DE102009019675A Active DE102009019675B4 (en) | 2009-04-30 | 2009-04-30 | Thermal coating apparatus and method for coating |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102012017186A1 (en) * | 2012-08-30 | 2014-03-06 | Wieland-Werke Ag | Mask for a coating system, coating system and method of making a coated substrate |
DE102015104492B4 (en) * | 2015-03-25 | 2024-05-08 | Gebr. Heller Maschinenfabrik Gmbh | Coating device for coating a workpiece surface of a workpiece |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4056213A (en) * | 1971-08-04 | 1977-11-01 | Martin Paint And Chemical Corporation | Pressurized dispenser for aqueous emulsion paints |
DE10204251A1 (en) * | 2002-02-02 | 2003-08-14 | Daimler Chrysler Ag | Method for thermal metal coating of internal bores has wire fed through rotating conveyor to ignition section to melt wire and eject it on to workpiece |
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2009
- 2009-04-30 DE DE102009019675A patent/DE102009019675B4/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4056213A (en) * | 1971-08-04 | 1977-11-01 | Martin Paint And Chemical Corporation | Pressurized dispenser for aqueous emulsion paints |
DE10204251A1 (en) * | 2002-02-02 | 2003-08-14 | Daimler Chrysler Ag | Method for thermal metal coating of internal bores has wire fed through rotating conveyor to ignition section to melt wire and eject it on to workpiece |
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DE102009019675A1 (en) | 2010-11-18 |
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OP8 | Request for examination as to paragraph 44 patent law | ||
R020 | Patent grant now final | ||
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Effective date: 20110810 |