EP1559807A1 - Method of repairing worn sliding surfaces, especially cylinder bores of engine blocks - Google Patents

Method of repairing worn sliding surfaces, especially cylinder bores of engine blocks Download PDF

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Publication number
EP1559807A1
EP1559807A1 EP05100597A EP05100597A EP1559807A1 EP 1559807 A1 EP1559807 A1 EP 1559807A1 EP 05100597 A EP05100597 A EP 05100597A EP 05100597 A EP05100597 A EP 05100597A EP 1559807 A1 EP1559807 A1 EP 1559807A1
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EP
European Patent Office
Prior art keywords
iron
containing layer
sliding surface
layer
sliding
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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Application number
EP05100597A
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German (de)
French (fr)
Inventor
Clemens Maria Verpoort
Keith A. Kowalsky
David Cook
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Ford Global Technologies LLC
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Ford Global Technologies LLC
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Publication of EP1559807A1 publication Critical patent/EP1559807A1/en
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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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • 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
    • 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
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material

Definitions

  • the invention relates to a method for repairing worn sliding surfaces, in particular for cylinder surfaces of engine blocks, according to the preamble of Claim 1.
  • an iron-containing layer on the sliding surface is, wherein the iron-containing layer has an amorphous structure with finely divided, nano-crystalline Metal borides and / or metal carbides may have a sliding surface be produced with high strength.
  • spraying remain the obtained original dimensions of the sliding layer, there are z. B. in the overhaul of Internal combustion engines no pistons with oversize necessary. Furthermore, the iron-containing layer used by their amorphous structure very cheap Sliding friction properties on.
  • the iron-containing layer has an excellent mechanical connection or Clamming to the base material due to the amorphous solidification and is thus being able to be applied to the sliding surface machined by ablation become.
  • the removal of the Sliding surface before the application of the layer may be by any suitable Surface treatment methods take place, for. B. drilling, turning, milling, Grinding or sanding, sandblasting, lasers. This allows flexible use the layer in any repair work on sliding surfaces. Because of the high Hardness and firmness of the layer will also be a possible weakening of the Base material compensated by wear or subsequent removal, so that the original strength of the base material can be almost achieved again can.
  • Application example is the critical web area between cylinder bores an engine block.
  • the coating is particularly suitable for thermal shock stressed engines. Thermal shock occurs when at cold start at low Ambient temperatures Engines quickly under load to maximum speed to turn up.
  • the iron-containing layer having an amorphous structure with has finely divided, nano-crystalline metal borides and / or metal carbides is the sliding surface highly resilient, because of the nano-crystalline precipitates the metal boride and metal carbides create a layer of extremely high hardness.
  • iron-containing layer is repair highly loaded cylinder surfaces of supercharged diesel and gasoline engines.
  • inventive layer in the drilled cylinder bore the cylinder bore is brought back to the original nominal size, so that the original piston can be used.
  • the layer is a very high strength, including the original strength of the engine block even restored, since the engine block is now the original Has wall thicknesses.
  • the coated iron-containing layer is subsequently with points with Heat applied, z. B. by laser light and / or electron beams. Then In the area of the heat input, finely divided nanocrystalline metal borides are formed and / or metal carbides from the amorphous structure of the iron-containing layer excreted.
  • the iron-containing layer when applying a relative have high content of crystalline and / or partially crystalline structure. This allows the favorable mechanical processing.
  • the iron-containing layer preferably has a hardness in the region of the heat input from 1000 to 1250 HV 0.05 on, however, the hardness can be adjusted by appropriate Process parameters and material composition readily in the range be set between 800 HV 0.05 and 1500 HV 0.05. Such hardness is previously z.
  • tungsten carbide / cobalt based tungsten carbide tools known, and can now be applied over a large area for sliding surfaces. Due to the high hardness, the iron-containing layer is extremely wear-resistant.
  • the Metallboride or metal carbides preferably have a size of 60 to 130 nm on. Due to the small size, the friction is reduced and the hardness increased.
  • the thermal spraying method is for application the iron-containing layer a plasma wire spraying (PTWA) or a Arc wire spraying (LDS). Both methods allow for more correct Setting the process parameters a cost-effective application of ferrous Layer.
  • PTWA plasma wire spraying
  • LDS Arc wire spraying

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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)
  • Coating By Spraying Or Casting (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Sliding-Contact Bearings (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

Some material is first removed. An iron-containing layer is coated onto the sliding surface by thermal-spraying. This layer has an amorphous structure. It contains finely-divided nano-crystalline metal borides and/or metal carbides. Further borides and/or carbides precipitate into the layer, following subsequent heat treatment. An independent claim is included for the corresponding, repaired sliding bearing surface.

Description

Die Erfindung betrifft ein Verfahren zur Reparatur verschlissener Gleitflächen, insbesondere für Zylinderlaufflächen von Motorblöcken, nach dem Oberbegriff des Anspruches 1.The invention relates to a method for repairing worn sliding surfaces, in particular for cylinder surfaces of engine blocks, according to the preamble of Claim 1.

Üblicherweise werden die Zylinderlaufflächen von Motorblöcken durch Aufbohren der Zylinderbohrungen repariert, indem die verschlissene Oberfläche abgetragen wird und die neu entstehende Gleitfläche einer geeigneten Oberflächenbearbeitung unterzogen wird. Dies erfordert jedoch einen neuen Kolben mit Übermaß. Weiterhin wird der Zylinderblock selbst an hochbelasteten Stellen, wie z. B. dem kritischen Stegbereich zwischen den Zylinderbohrungen, durch den Materialabtrag beim Aufbohren geschwächt, so daß es in diesem Bereich zu Rissen kommen kann.Usually, the cylinder surfaces of engine blocks by drilling the cylinder bores repaired by the worn surface removed and the newly emerging sliding surface of a suitable surface treatment is subjected. However, this requires a new piston with excess. Farther is the cylinder block itself at high-load locations, such. B. the critical Web area between the cylinder bores, by the material removal at Boring weakened so that it can crack in this area.

Aus der WO 03/106718 ist eine eisenhaltige Schicht bekannt, die durch thermisches Spritzen aufgetragen wird. Eine derartige Schicht ist aufgrund der hohen Härte gut als Gleitfläche geeignet. Dazu wird die Schicht im Bereich der Gleitflächen auf ein Grundmaterial der zu beschichtenden Maschinenteile durch thermisches Spritzen aufgetragen.From WO 03/106718 an iron-containing layer is known, which by thermal Spraying is applied. Such a layer is good because of its high hardness suitable as sliding surface. For this purpose, the layer in the sliding surfaces on a Base material of the machine parts to be coated by thermal spraying applied.

Demgemäß ist es die Aufgabe der Erfindung, eine Gleitfläche so zu reparieren, daß durch die Reparatur die Festigkeit des Grundkörpers, z. B. eines Motorblockes, nicht reduziert ist. Auch sollte vorteilhafterweise die Maßhaltigkeit der Gleitfläche gewährt sein. Vorteilhaft wäre es auch, wenn dabei die reparierte Gleitfläche gute Gleiteigenschaften aufweist.Accordingly, it is the object of the invention to repair a sliding surface so that by repairing the strength of the body, z. B. an engine block, not is reduced. Also, the dimensional stability of the sliding surface should advantageously be granted be. It would also be advantageous if the repaired sliding surface is good Has sliding properties.

Gelöst wird diese Aufgabe mit den Merkmalen des Anspruches 1.This problem is solved with the features of claim 1.

Indem nach der Materialabtragung der verschlissenen Gleitfläche anschließend durch thermisches Spritzen eine eisenhaltige Schicht auf die Gleitfläche aufgetragen wird, wobei die eisenhaltige Schicht eine amorphe Struktur mit feinverteilten, nano-kristallinen Metallboriden und/oder Metallkarbiden aufweist, kann eine Gleitfläche mit hoher Festigkeit erzeugt werden. Durch das Aufspritzen bleiben die ursprünglichen Maße der Gleitschicht erhalten, es sind z. B. bei der Überholung von Verbrennungsmotoren keine Kolben mit Übermaß notwendig. Weiterhin weist die verwendete eisenhaltige Schicht durch ihre amorphe Struktur sehr günstige Gleitreibungseigenschaften auf.After following the material removal of the worn sliding surface applied by thermal spraying an iron-containing layer on the sliding surface is, wherein the iron-containing layer has an amorphous structure with finely divided, nano-crystalline Metal borides and / or metal carbides may have a sliding surface be produced with high strength. By spraying remain the obtained original dimensions of the sliding layer, there are z. B. in the overhaul of Internal combustion engines no pistons with oversize necessary. Furthermore, the iron-containing layer used by their amorphous structure very cheap Sliding friction properties on.

Die eisenhaltige Schicht besitzt eine ausgezeichnete mechanische Verbindung bzw. Verklammerung zum Grundmaterial aufgrund der amorphen Erstarrung und ist damit in der Lage, auf die durch Abtragung bearbeitete Gleitfläche aufgetragen zu werden. Dabei kann der Auftrag der Schicht auf eine nachbearbeitete, gesäuberte und / oder gestrahlte Oberfläche der Gleitfläche erfolgen. Die Abtragung der Gleitfläche vor der Aufbringung der Schicht kann durch jedes geeignete Oberflächenbearbeitungsverfahren erfolgen, z. B. Bohren, Drehen, Fräsen, Schleifen oder Anschleifen, Sandstrahlen, Lasern. Dies erlaubt den flexiblen Einsatz der Schicht bei jedweden Reparaturarbeiten an Gleitflächen. Aufgrund der hohen Härte und Festigkeit der Schicht wird auch eine evt. Schwächung des Grundmaterials durch Verschleiß oder nachträglichen Abtrag ausgeglichen, so daß die ursprüngliche Festigkeit des Grundmaterials nahezu wieder erreicht werden kann. Anwendungsbeispiel ist der kritische Stegbereich zwischen Zylinderbohrungen eines Motorblocks.The iron-containing layer has an excellent mechanical connection or Clamming to the base material due to the amorphous solidification and is thus being able to be applied to the sliding surface machined by ablation become. The order of the layer on a post-processed, cleaned and / or blasted surface of the sliding surface. The removal of the Sliding surface before the application of the layer may be by any suitable Surface treatment methods take place, for. B. drilling, turning, milling, Grinding or sanding, sandblasting, lasers. This allows flexible use the layer in any repair work on sliding surfaces. Because of the high Hardness and firmness of the layer will also be a possible weakening of the Base material compensated by wear or subsequent removal, so that the original strength of the base material can be almost achieved again can. Application example is the critical web area between cylinder bores an engine block.

Aufgrund der hohen mechanischen Umklammerung der Schicht mit dem Grundmaterial eignet sich die Beschichtung insbesondere auch für Thermoschock beanspruchte Motoren. Thermoschock tritt auf, wenn beim Kaltstart bei niedrigen Umgebungstemperaturen Motoren schnell unter Last auf Höchstdrehzahl hochdrehen. Indem die eisenhaltige Schicht eine amorphe Struktur mit feinverteilten, nano-kristallinen Metallboriden und / oder Metallkarbiden aufweist, ist die Gleitfläche hochbelastbar, da aufgrund der nano-kristallinen Ausscheidungen der Metallboride und Metallkarbide eine Schicht mit extrem hoher Härte entsteht. Due to the high mechanical clasping of the layer with the Base material, the coating is particularly suitable for thermal shock stressed engines. Thermal shock occurs when at cold start at low Ambient temperatures Engines quickly under load to maximum speed to turn up. By the iron-containing layer having an amorphous structure with has finely divided, nano-crystalline metal borides and / or metal carbides is the sliding surface highly resilient, because of the nano-crystalline precipitates the metal boride and metal carbides create a layer of extremely high hardness.

Eine weitere bevorzugte Anwendung der eisenhaltigen Schicht ist die Reparatur hochbelasteter Zylinderlaufflächen von aufgeladenen Diesel- und Benzinmotoren. Durch Aufbringen der erfinderischen Schicht in der aufgebohrten Zylinderbohrung wird die Zylinderbohrung wieder auf das ursprüngliche Nennmaß gebracht, so daß der ursprüngliche Kolben verwendet werden kann. Weiterhin ist, da die Schicht eine sehr hohe Festigkeit aufweist, auch die ursprüngliche Festigkeit des Motorblocks selbst wieder hergestellt, da der Motorblock nun wieder die ursprünglichen Wandstärken aufweist.Another preferred application of the iron-containing layer is repair highly loaded cylinder surfaces of supercharged diesel and gasoline engines. By applying the inventive layer in the drilled cylinder bore the cylinder bore is brought back to the original nominal size, so that the original piston can be used. Furthermore, since the layer is a very high strength, including the original strength of the engine block even restored, since the engine block is now the original Has wall thicknesses.

Verwendung findet die erfinderische eisenhaltige Schicht bei der Reparatur von Gleitflächen an Maschinenteilen, insbesondere von Pleuellagern, Kurbelwellenlagern, Kolbenringen, Zylinderlaufflächen und Kolben. Dies schließt neben Verbrennungsmotoren alle Maschinen ein, wo sich derartige Maschinenbauteile befinden, z. B. Hydraulikzylinder, Getriebe, Wellenlagerungen.Use finds the inventive iron-containing layer in the repair of Sliding surfaces on machine parts, in particular of connecting rod bearings, Crankshaft bearings, piston rings, cylinder surfaces and pistons. This concludes In addition to internal combustion engines, all machines where such Machine components are located, for. B. hydraulic cylinder, gearbox, shaft bearings.

Bei der Verwendung der eisenhaltigen Schicht zur Reparatur von Gleitflächen spielt es keine Rolle, ob die Gleitfläche vor der Reparatur bereits die gleiche oder eine ähnliche Beschichtung aufwies, oder ob die Gleitfläche direkt aus dem Grundmaterial, auf das die eisenhaltige Schicht aufgetragen wird, gebildet war. Insbesondere im letzteren Fall eignet sich die Schicht sehr gut, um alte, verschlissene Zylinderblöcke aufzuarbeiten, die jedoch noch nicht beschichtet waren.When using the iron-containing layer to repair sliding surfaces plays It does not matter if the sliding surface before the repair is already the same or a similar coating, or whether the sliding surface directly from the Base material to which the iron-containing layer is applied, was formed. Especially in the latter case, the layer is very well suited to old, work up worn cylinder blocks, but not yet coated were.

Vorteilhaft wird die aufgetragene eisenhaltige Schicht nachträglich mit punktuell mit Wärme beaufschlagt, z. B. durch Laserlicht und/oder Elektronenstrahlen. Dann werden im Bereich des Wärmeeintrags feinverteilte nanokristalline Metallboride und/oder Metallkarbide aus der amorphen Struktur der eisenhaltigen Schicht ausgeschieden. Damit kann die eisenhaltige Schicht beim Auftragen einen relativ hohen Anteil an kristalliner und/oder teilkristalliner Struktur aufweisen. Dies erlaubt die günstige mechanische Bearbeitung. Durch den Wärmeeintrag entstehen zusätzliche nanokristalline Metallboride und/oder Metallkarbide, die die Festigkeit der eisenhaltigen Schicht im Bereich des Wärmeeintrags wesentlich erhöhen. Advantageously, the coated iron-containing layer is subsequently with points with Heat applied, z. B. by laser light and / or electron beams. Then In the area of the heat input, finely divided nanocrystalline metal borides are formed and / or metal carbides from the amorphous structure of the iron-containing layer excreted. Thus, the iron-containing layer when applying a relative have high content of crystalline and / or partially crystalline structure. This allows the favorable mechanical processing. Created by the heat input additional nanocrystalline metal borides and / or metal carbides that enhance the strength significantly increase the iron-containing layer in the region of heat input.

Bevorzugt weist die eisenhaltige Schicht im Bereich des Wärmeeintrags eine Härte von 1000 bis 1250 HV 0,05 auf, jedoch kann die Härte durch entsprechende Prozeßparameter und Materialzusammensetzung ohne weiteres im Bereich zwischen 800 HV 0,05 und 1500 HV 0,05 eingestellt werden. Eine solche Härte ist bisher z. B. bei Hartmetallwerkzeugen auf Basis von Wolfram-Karbid / Kobalt bekannt, und kann jetzt auch für Gleitflächen großflächig angewendet werden. Aufgrund der hohen Härte ist die eisenhaltige Schicht extrem verschleißfest. Die Metallboride bzw. Metallkarbide weisen bevorzugt eine Größe von 60 bis 130 nm auf. Aufgrund der geringen Größe wird die Reibung reduziert und die Härte gesteigert.The iron-containing layer preferably has a hardness in the region of the heat input from 1000 to 1250 HV 0.05 on, however, the hardness can be adjusted by appropriate Process parameters and material composition readily in the range be set between 800 HV 0.05 and 1500 HV 0.05. Such hardness is previously z. As tungsten carbide / cobalt based tungsten carbide tools known, and can now be applied over a large area for sliding surfaces. Due to the high hardness, the iron-containing layer is extremely wear-resistant. The Metallboride or metal carbides preferably have a size of 60 to 130 nm on. Due to the small size, the friction is reduced and the hardness increased.

Bei einem vorteilhaften Verfahren ist das thermische Spritzverfahren zum Auftragen der eisenhaltigen Schicht ein Plasmadrahtspritzen (PTWA) oder ein Lichtbogendrahtspritzen (LDS). Beide Verfahren ermöglichen bei richtiger Einstellung der Prozeßparameter eine kostengünstige Auftragung der eisenhaltigen Schicht.In an advantageous method, the thermal spraying method is for application the iron-containing layer a plasma wire spraying (PTWA) or a Arc wire spraying (LDS). Both methods allow for more correct Setting the process parameters a cost-effective application of ferrous Layer.

Ein weiteres vorteilhaftes Verfahren ergibt sich, wenn Gleitflächen nur abschnittsweise repariert werden müssen. Dann kann der zu reparierende Bereich der Gleitfläche durch Materialabtragung vorbereitet werden. Nur in diesem Bereich wird die eisenhaltige Schicht aufgetragen. Dadurch ist eine kostengünstige Reparatur größerer Gleitflächen, die nur bereichsweise verschlissen sind, möglich.Another advantageous method results when sliding surfaces only must be repaired in sections. Then the area to be repaired the sliding surface are prepared by material removal. Only in this area the iron-containing layer is applied. This is a cost effective Repair of larger sliding surfaces, which are only partially worn, possible.

Die Ausführung und die Verwendung der Erfindung ist nicht auf die vorliegenden Bespiele beschränkt. Es versteht sich von selbst, daß das erfinderische Verfahren zur Reparatur jeder verschlissenen Gleitfläche benutzt werden kann.The embodiment and use of the invention is not limited to the present invention Limited examples. It goes without saying that the inventive method can be used to repair any worn sliding surface.

Claims (8)

Verfahren zur Reparatur verschlissener Gleitflächen, insbesondere für Zylinderlaufflächen von Motorblöcken, wobei die verschlissene Gleitfläche zumindest teilweise in einem vorbereitenden Arbeitsschritt durch Materialabtragung bearbeitet wird,
dadurch gekennzeichnet, daß
nach der Materialabtragung durch thermisches Spritzen eine eisenhaltige Schicht auf die Gleitfläche aufgetragen wird, wobei die eisenhaltige Schicht eine amorphe Struktur mit feinverteilten, nano-kristallinen Metallboriden und/oder Metallkarbiden aufweist.Method for repairing worn sliding surfaces, in particular for cylinder running surfaces of engine blocks, wherein the worn sliding surface is at least partially processed in a preparatory step by material removal,
characterized in that
After the removal of material by thermal spraying, an iron-containing layer is applied to the sliding surface, wherein the iron-containing layer has an amorphous structure with finely divided, nano-crystalline metal borides and / or metal carbides. Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß
die eisenhaltige Schicht weitere nano-kristalline Metallboride und/oder Metallkarbide aufweist, die nach dem Auftrag der eisenhaltigen Schicht durch einen nachträglichen Wärmeeintrag in die eisenhaltige Schicht entstanden sind.Method according to claim 1,
characterized in that
the iron-containing layer has further nano-crystalline metal borides and / or metal carbides which have been produced after the application of the iron-containing layer by a subsequent heat input into the iron-containing layer. Verfahren nach Anspruch 2,
dadurch gekennzeichnet, daß
im Bereich des Wärmeeintrags feinverteilte nanokristalline Metallboride und/oder Metallkarbide aus der amorphen Struktur der eisenhaltigen Schicht ausgeschieden sind.Method according to claim 2,
characterized in that
finely divided nanocrystalline metal borides and / or metal carbides are precipitated from the amorphous structure of the iron-containing layer in the region of the heat input. Verfahren nach Anspruch 2 oder 3,
dadurch gekennzeichnet, daß
der nachträgliche Wärmeeintrag mittels Laserstrahlen und/oder Elektronenstrahlen erfolgt. Method according to claim 2 or 3,
characterized in that
the subsequent heat input by means of laser beams and / or electron beams takes place. Verfahren nach einem der Ansprüche vorherigen,
dadurch gekennzeichnet, daß
das thermische Spritzverfahren zum Auftragen der eisenhaltigen Schicht ein Plasmadrahtspritzen (PTWA) oder ein Lichtbogenspritzen (LDS) ist.Method according to one of the preceding claims,
characterized in that
the thermal spraying method for applying the iron-containing layer is plasma wire spraying (PTWA) or arc spraying (LDS). Verfahren nach einem der vorherigen Ansprüche zur Reparatur von Gleitflächen an Maschinenteilen, insbesondere von Pleuellagern, Kurbelwellenlagern, Kolbenringen, Zylinderlaufflächen und Kolben.Method according to one of the preceding claims for the repair of Sliding surfaces on machine parts, in particular of connecting rod bearings, Crankshaft bearings, piston rings, cylinder surfaces and pistons. Verfahren nach einem der vorherigen Ansprüche, wobei die Gleitfläche nur in Teilbereichen mittels der eisenhaltigen Schicht repariert wird.Method according to one of the preceding claims, wherein the sliding surface only in Partial areas is repaired by means of the iron-containing layer. Gleitfläche, repariert nach einem der vorherigen Verfahren.Sliding surface, repaired by one of the previous methods.
EP05100597A 2004-01-28 2005-01-28 Method of repairing worn sliding surfaces, especially cylinder bores of engine blocks Withdrawn EP1559807A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004004457 2004-01-28
DE102004004457 2004-01-28

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EP1559807A1 true EP1559807A1 (en) 2005-08-03

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Family Applications (4)

Application Number Title Priority Date Filing Date
EP05707873A Active EP1711642B1 (en) 2004-01-28 2005-01-28 Ferrous layer for a sliding surface, in particular for cylinder running surfaces on engine blocks, applied by means of thermal spraying
EP05100596A Withdrawn EP1559808A1 (en) 2004-01-28 2005-01-28 Iron containing coating applied by thermal spraying on a sliding surface,especially on cylinder boxes of engine blocks
EP05100597A Withdrawn EP1559807A1 (en) 2004-01-28 2005-01-28 Method of repairing worn sliding surfaces, especially cylinder bores of engine blocks
EP05100575A Withdrawn EP1559806A1 (en) 2004-01-28 2005-01-28 Iron containing coating applied by thermal spraying on a sliding surface,especially on cylinder bores of engine blocks

Family Applications Before (2)

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EP05707873A Active EP1711642B1 (en) 2004-01-28 2005-01-28 Ferrous layer for a sliding surface, in particular for cylinder running surfaces on engine blocks, applied by means of thermal spraying
EP05100596A Withdrawn EP1559808A1 (en) 2004-01-28 2005-01-28 Iron containing coating applied by thermal spraying on a sliding surface,especially on cylinder boxes of engine blocks

Family Applications After (1)

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EP05100575A Withdrawn EP1559806A1 (en) 2004-01-28 2005-01-28 Iron containing coating applied by thermal spraying on a sliding surface,especially on cylinder bores of engine blocks

Country Status (4)

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EP (4) EP1711642B1 (en)
AT (1) ATE473311T1 (en)
DE (1) DE502005009857D1 (en)
WO (1) WO2005073425A1 (en)

Cited By (10)

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Publication number Priority date Publication date Assignee Title
WO2009115156A2 (en) * 2008-03-18 2009-09-24 Federal-Mogul Burscheid Gmbh Method and device for producing a dispersion-hardened object that contains carbide nanoparticles
EP2597170A1 (en) * 2011-11-22 2013-05-29 Ford Global Technologies, LLC Process for repairing a cylinder running surface by means of plasma spraying processes
WO2013117209A3 (en) * 2012-02-11 2014-03-20 Daimler Ag Thermally coated component with a frictionally optimized runway surface
US8726874B2 (en) 2012-05-01 2014-05-20 Ford Global Technologies, Llc Cylinder bore with selective surface treatment and method of making the same
US8752256B2 (en) 2008-04-21 2014-06-17 Ford Global Technologies, Llc Method for preparing a surface for applying a thermally sprayed layer
US8833331B2 (en) 2012-02-02 2014-09-16 Ford Global Technologies, Llc Repaired engine block and repair method
US9079213B2 (en) 2012-06-29 2015-07-14 Ford Global Technologies, Llc Method of determining coating uniformity of a coated surface
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EP1559808A1 (en) 2005-08-03
WO2005073425A1 (en) 2005-08-11

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