EP1238711A2 - Innenbrenner - Google Patents
Innenbrenner Download PDFInfo
- Publication number
- EP1238711A2 EP1238711A2 EP02003519A EP02003519A EP1238711A2 EP 1238711 A2 EP1238711 A2 EP 1238711A2 EP 02003519 A EP02003519 A EP 02003519A EP 02003519 A EP02003519 A EP 02003519A EP 1238711 A2 EP1238711 A2 EP 1238711A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- wires
- main
- internal burner
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- B05B7/224—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 having originally the shape of a wire, rod or the like
-
- 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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder or liquid
Definitions
- the invention relates to an internal burner for arc wire spraying of cavities, in particular of cylinder running surfaces, as it is, for example, from the generic DE 198 41 617 A1 emerges as known.
- the inner burner has two burner tubes, which are provided for feeding electrodes made of wire.
- the Electrodes are melted in an arc.
- the internal burner has a gas supply for a process gas, which is used to transport and atomize the melted Wire material in the direction of the surface to be coated Cavity is provided.
- the (electrode) wires are through the burner tubes on the outlet side and in the area of the arc towards each other, the one in the contact area of the Wires arranged arcing of the electrode wires in the area the gas flow of the exiting process gas is arranged.
- the gas flow of the leaked process gas simplify below
- the main gas flow direction is transverse to the main transport direction of the wires set through the burner tubes is arranged.
- the object of the invention is to provide the known internal burner continue to develop that sprayed layers with it are possible that have lower porosity and / or pores have a smaller average pore diameter.
- the object is achieved with an internal burner with the characterizing features of claim 1 solved.
- the invention has at least double bend of the wire the point of contact of the two wires and thus the arc A high level of local stability even with current and / or voltage fluctuations on. It’s probably due to this local stability, that with the internal burner according to the invention sprayed layers have negligible porosity. Furthermore, the average pore diameter is also in these layers less than in the prior art.
- the internal burner has two burner tubes 3 for supplying electrodes on.
- the burner tubes 3 are within supply tubes 1 arranged through which the main direction of transport wire-like electrodes is set.
- the electrodes are wires that are used for melting are provided in an arc.
- the out the droplets forming the molten wires are separated from one Process gas, the gas supply in particular in the supply pipes 1 is arranged in the direction of the to be coated Surface of the cavity transported and preferably also atomized.
- the gas flow from the nozzle head 2 and the Simplify droplets transporting process gas in the following The main gas direction is transverse to the main transport direction of the wires arranged.
- the two wires after the burner tubes 3 are on the outlet side towards each other.
- the feeding is done by a bend the wires around a first, transverse to the main transport direction the axis of the wires.
- the wires touch in the area of the gas flow of the process gas emerging from the nozzle head 2, whereby the arc of the electrode wires is also in this area.
- the wires are in the area of the nozzle head 2 apart to additionally bent around a second axis, which both to the first axis as well as to the main transport direction of the Wires is arranged transversely. This measure is the arc largely stable to the internal burner, which is probably why the quality of the layer deposited on the substrate is very good.
- the wires are additional to each other bent towards the main gas direction.
- the top Angle between the main gas direction and the focal point The direction of wire transport is logically close to the arc between 0 ° to 30 °, preferably between 20 ° and 1 ° and particularly preferably between 10 ° and 1 °.
- the internal burner is designed as a closed burner and has a nozzle 4.
- the arc (focal point) is in the area the opening of the nozzle, preferably on the flow side the exit of the gas flow from the nozzle 4, arranged.
- the droplet flow through the nozzle 4 in is favorably shaped so that the through the opening from the nozzle 4th escaping gas / material flow an expansion angle between 10 ° and 45 °, preferably between 15 ° and 30 °.
- the main opening To form the gas / material flow 4 are in the nozzle the main opening, several secondary openings are arranged in particular in the form of preferably conical bores and / or are formed as annular gaps.
- the secondary openings are in particular arranged concentrically around the main opening, whereby and that the clear width of the secondary openings less than which is the main opening.
- the (form) gas supply to the secondary openings can take place by that a partial gas flow from the gas flow of the main opening is branched off. This allows greater variability be that the secondary openings with a pressure gas other than the main opening.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electromagnetism (AREA)
- Coating By Spraying Or Casting (AREA)
- Nozzles (AREA)
Abstract
Description
- Fig. 1:
- eine perspektivische Aufsicht auf eine Innenbrenner mit entfernter Düse und
- Fig. 2:
- den Brenner nach Figur 1 mit geschlossener Düse.
Claims (10)
- Innenbrenner zum Lichtbogendrahtspritzen von Hohlräumen, insbesondere von Zylinderlaufflächen, mit mindestens zwei Brennerrohren zur Zuführung von Elektroden, welche Elektroden zur Aufschmelzung vorgesehen und als in einem Lichtbogen abbrennbare Drähte ausgebildet sind,
ferner mit einer Gaszuführung für ein Prozessgas, welches zum Transport und Zerstäuben des aufgeschmolzenen Drahtmaterials in Richtung der zu beschichtenden Oberfläche des Hohlraumes vorgesehen ist,
wobei die Drähte durch die Brennerrohre austrittsseitig und im Bereich des Lichtbogens aufeinander zu geführt sind,
wobei der im Berührungsbereich der Drähte angeordnete Lichtbogen der Elektroden-Drähte im Bereich des Gasstromes des ausgetretenen Prozessgases angeordnet ist, und
wobei der Gasstrom des ausgetretenen Prozessgases, im folgenden vereinfachen Hauptgasrichtung genannt, quer zur Haupttransportrichtung der Drähte angeordnet ist,
dadurch gekennzeichnet, daß die Drähte außer aufeinander zu zusätzlich noch quer dazu gebogen sind. - Innenbrenner nach Anspruch 1,
dadurch gekennzeichnet, daß die Drähte lichtbogennah mit der Hauptgasrichtung einen spitzen Winkel einschließen. - Innenbrenner nach Anspruch 1,
dadurch gekennzeichnet, daß die zusätzliche Biegung eine weicher Krümmung in Richtung der Hauptgasrichtung des ausgetretenen Prozessgases aufweist. - Innenbrenner nach Anspruch 3,
dadurch gekennzeichnet, daß der spitze Winkel zwischen der Hauptgasstromrichtung und brennpunktnaher Drahttransportrichtung zwischen 0° bis 30°, vorzugsweise zwischen 20° und 1° und besonders bevorzugt zwischen 10° und 1 ° beträgt. - Innenbrenner nach Anspruch 1,
dadurch gekennzeichnet, daß der Innenbrenner ein geschlossener Brenner ist, daß der Innenbrenner eine Düse (4) aufweist und daß der Lichtbogen (Brennpunkt) im Bereich der Öffnung der Düse (4), vorzugsweise strömungsseitig vor dem Austritt des Gasstroms aus der Düse (4), angeordnet ist. - Innenbrenner nach Anspruch 5,
dadurch gekennzeichnet, daß der durch die Öffnung aus der Düse (4) austretende Gas/Materialstrom einen Aufweitwinkel zwischen 10° und 45°, vorzugsweise zwischen 15° und 30° aufweist. - Innenbrenner nach Anspruch 5,
dadurch gekennzeichnet, daß die Düse (4) eine Hauptöffnung und mehrere, insbesondere konzentrisch um die Hauptöffnung angeordnete Nebenöffnungen aufweist und daß die lichte Weite der Nebenöffnungen geringer als die der Hauptöffnung ist. - Innenbrenner nach Anspruch 7,
dadurch gekennzeichnet, daß der Gasstrom der Nebenöffnungen aus dem Gasstrom der Hauptöffnung abgezweigt ist. - Innenbrenner nach Anspruch 7,
dadurch gekennzeichnet, daß die Gasversorgung der Nebenöffnungen getrennt von der Gasversorgung der Hauptöffnung ist. - Innenbrenner nach Anspruch 7,
dadurch gekennzeichnet, daß die Nebenöffnungen mit einem anderen Druck und/oder anderem Gas als die Hauptöffnung versorgt sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10111565 | 2001-03-10 | ||
| DE10111565A DE10111565C5 (de) | 2001-03-10 | 2001-03-10 | Innenbrenner |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1238711A2 true EP1238711A2 (de) | 2002-09-11 |
| EP1238711A3 EP1238711A3 (de) | 2006-02-01 |
| EP1238711B1 EP1238711B1 (de) | 2008-11-12 |
Family
ID=7676991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02003519A Expired - Lifetime EP1238711B1 (de) | 2001-03-10 | 2002-02-15 | Innenbrenner |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6667460B2 (de) |
| EP (1) | EP1238711B1 (de) |
| JP (1) | JP3496012B2 (de) |
| DE (2) | DE10111565C5 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1622728A4 (de) * | 2003-05-13 | 2008-04-23 | James A Browning | Hvof-drahtspritzsystem |
| DE102008004607A1 (de) | 2008-01-16 | 2009-05-28 | Daimler Ag | Lichtbogendrahtbrenner |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008008169A1 (de) * | 2008-02-08 | 2009-08-13 | Daimler Ag | Innenbrenner zum Lichtbogendrahtspritzen |
| EP2468914B1 (de) * | 2010-12-23 | 2016-09-21 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zum Lichtbogenspritzen |
| DE102011120539B4 (de) | 2011-12-08 | 2020-10-29 | Daimler Ag | Verfahren zur Prüfung einer thermischen Beschichtungsanlage |
| DE102012014665A1 (de) | 2012-07-25 | 2013-01-31 | Daimler Ag | Brenner zum Lichtbogendrahtspritzen |
| DE102017120397A1 (de) | 2017-09-05 | 2019-03-07 | Gebr. Heller Maschinenfabrik Gmbh | Vorrichtung und Verfahren zum Lichtbogendrahtspritzen |
| DE102019005421A1 (de) | 2019-08-01 | 2020-08-06 | Daimler Ag | Verfahren zum Schutz gespritzter Oberflächenbeschichtungen |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19841617A1 (de) | 1998-09-11 | 2000-03-23 | Daimler Chrysler Ag | Rotierende Drahtlichtbogenspritzanlage zur Beschichtung von Innenflächen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5610103B2 (de) * | 1973-09-06 | 1981-03-05 | ||
| US4624410A (en) * | 1982-10-18 | 1986-11-25 | Rogers Frank S | Lead cable and spray head for arc metal spray apparatus |
| FR2681538B1 (fr) * | 1991-09-19 | 1995-03-24 | Air Liquide | Procede et dispositif de formation d'un depot par projection d'un materiau d'apport sur un substrat. |
| US5468295A (en) * | 1993-12-17 | 1995-11-21 | Flame-Spray Industries, Inc. | Apparatus and method for thermal spray coating interior surfaces |
| US5622753A (en) * | 1996-04-08 | 1997-04-22 | Ford Motor Company | Method of preparing and coating aluminum bore surfaces |
| EP1003612B1 (de) * | 1997-09-04 | 2004-06-02 | International Metalizing Corporation | Vorrichtung zum doppeldraht-lichtbogenspritzen |
| US6076742A (en) * | 1999-03-11 | 2000-06-20 | Sulzer Metco (Us) Inc. | Arc thermal spray gun extension with conical spray |
-
2001
- 2001-03-10 DE DE10111565A patent/DE10111565C5/de not_active Expired - Fee Related
-
2002
- 2002-02-15 EP EP02003519A patent/EP1238711B1/de not_active Expired - Lifetime
- 2002-02-15 DE DE50212998T patent/DE50212998D1/de not_active Expired - Lifetime
- 2002-03-08 JP JP2002062889A patent/JP3496012B2/ja not_active Expired - Lifetime
- 2002-03-11 US US10/093,830 patent/US6667460B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19841617A1 (de) | 1998-09-11 | 2000-03-23 | Daimler Chrysler Ag | Rotierende Drahtlichtbogenspritzanlage zur Beschichtung von Innenflächen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1622728A4 (de) * | 2003-05-13 | 2008-04-23 | James A Browning | Hvof-drahtspritzsystem |
| DE102008004607A1 (de) | 2008-01-16 | 2009-05-28 | Daimler Ag | Lichtbogendrahtbrenner |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10111565C5 (de) | 2005-07-21 |
| DE10111565C2 (de) | 2003-01-30 |
| DE10111565A1 (de) | 2002-09-26 |
| US6667460B2 (en) | 2003-12-23 |
| JP3496012B2 (ja) | 2004-02-09 |
| EP1238711B1 (de) | 2008-11-12 |
| JP2002322552A (ja) | 2002-11-08 |
| EP1238711A3 (de) | 2006-02-01 |
| US20020130109A1 (en) | 2002-09-19 |
| DE50212998D1 (de) | 2008-12-24 |
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