EP2246457A1 - Method for roughening a metal surface, in particular a cylinder wall of a crankcase - Google Patents
Method for roughening a metal surface, in particular a cylinder wall of a crankcase Download PDFInfo
- Publication number
- EP2246457A1 EP2246457A1 EP10003319A EP10003319A EP2246457A1 EP 2246457 A1 EP2246457 A1 EP 2246457A1 EP 10003319 A EP10003319 A EP 10003319A EP 10003319 A EP10003319 A EP 10003319A EP 2246457 A1 EP2246457 A1 EP 2246457A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal surface
- roughening
- flux
- substance
- mixture
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000007788 roughening Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000004907 flux Effects 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract 13
- 238000006243 chemical reaction Methods 0.000 claims abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 23
- 239000003513 alkali Substances 0.000 claims description 3
- 238000004040 coloring Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000002923 metal particle Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/32—Alkaline compositions
- C23F1/36—Alkaline compositions for etching aluminium or alloys thereof
Definitions
- the present invention relates to a method according to the preamble of claim 1.
- Such a method is for example from EP 568315 B1 .
- the methods described therein involve roughening cylinder surfaces of crankcases by irradiation with a high-pressure jet of pure water.
- the cylinder surfaces are eroded by the high-pressure water jet, whereby soft structural phases are washed out of the surface.
- the result of this erosion process is a rough surface with undercuts and channels compared to the initial state, which is then optimally suitable for a subsequent coating with a coating material, whereby the "undercuts" achieve a very good adhesion of the coating to the underlying material.
- the object of the invention is to modify the known per se method for roughening metal surfaces so that it is cost-effective and feasible with less technical effort.
- the basic principle of the invention is, instead of working with pure or essentially pure water, with a mixture of water and a substance which chemically reacts or "attacks" the metal surface to be roughened.
- a high-pressure water jet takes place an additional, based on chemical processes roughening of the metal surface.
- a very significant, resulting advantage is the fact that can be compared to the conventional method with lower pressures, thereby reducing the investment costs for the pump technology.
- the pressure level of the high-pressure water jet can be lowered to 1000 to 2500 bar, without thereby worsening the "roughening performance” or “roughening quality" compared with conventional processes.
- the metal surface is carefully freed from alkali residues after the roughening process.
- the removal of lye residues can be done, for example, by rinsing at low pressure with pure water.
- a "flux” may also be added to the water.
- So-called fluxes are known from soldering. They are applied to the workpiece to achieve a good bond between the solder material and the material of the workpiece during soldering. This principle can also be used when roughening metal surfaces by means of a high-pressure water jet. After blasting the roughened metal surface and the drying and cooling of the surface remain residues of the water used for blasting added flux on the metal surface back.
- the metal surface is coated after roughening by means of a thermal coating method.
- a suitable, known coating method is, for example, the arc wire spraying method in which energy-rich metal particles are "shot" onto the surface to be coated by means of an arc. Due to the kinetic energy to be degraded upon impact of the metal particles or due to the local high pressures resulting there is a strong increase in temperature, which causes the flux residues with the material of the metal surface (eg aluminum or aluminum alloy) react chemically, which leads to a deoxidization of the metal surface and as a result to a low-oxide connection between the coating material (eg Fe alloys or Al alloys) and the material of the workpiece (eg aluminum).
- the coating material eg Fe alloys or Al alloys
- flux e.g. the flux produced by Solvay Fluor GmbH under the trade name "Nocoloc”.
- the flux may be added to the water used for roughening in a concentration between e.g. 0.01% and 10% are added.
- a dye may be added to the water used for roughening.
- color pigments on the order of between 0.01 ⁇ m and 1 ⁇ m in a concentration of up to 15% can be added to the water. The addition of dye then makes it possible in a simple manner to control whether the lye added to the water or the flux added to the water has distributed uniformly over the metal surface to be roughened or roughened.
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren gemäß dem Oberbegriff des Patentanspruches 1.The present invention relates to a method according to the preamble of claim 1.
Ein derartiges Verfahren ist z.B. aus der
Die in den oben genannten Dokumenten beschriebenen Verfahren arbeiten, wie bereits erwähnt, mit reinem Wasser. Aufgrund der hohen kinetischen Energie mit der der Hochdruckwasserstrahl auf die Zylinderlaufflächen auftrifft, erwärmt sich das Kurbelgehäuse auf eine Temperatur im Bereich zwischen 50°C und 90°C, wobei das Wasser zumindest teilweise verdampft. Um den Wasserstrahl hinreichend stark zu beschleunigen, so dass die Zylinderlaufflächen bis in eine Tiefe von 50-100 µm "zerfurcht" werden, ist ein sehr hoher Pumpendruck und ein in Relation zu dem Druckniveau großer Volumenstrom erforderlich.The methods described in the above documents work, as already mentioned, with pure water. Due to the high kinetic energy with which the high pressure water jet impinges on the cylinder surfaces, the crankcase heats up to a temperature in the range between 50 ° C and 90 ° C, wherein the water at least partially evaporated. To accelerate the water jet sufficiently strong, so that the cylinder surfaces are "ruffled" to a depth of 50-100 microns, is a very high pump pressure and a large volume flow in relation to the pressure level required.
Derzeit bieten nur einige wenige Pumpenhersteller Pumpen an, welche die erforderlichen Drücke von 2500 - 3500 bar bei einem Volumenstrom von 10 - 25 Liter/min erzeugen können. Dementsprechend teuer ist nicht nur die Pumpentechnik an sich, sondern auch die Wiederaufbereitung des Volumens des verwendeten Wassers. Zur Herausfilterung der erosiv abgetragenen Metallpartikel aus dem Wasser werden nämlich Filter benötigt, die Partikel in der Größenordnung von einem Durchmesser von 1 µm herausfiltern können.Currently, only a few pump manufacturers offer pumps that can produce the required pressures of 2500 - 3500 bar at a flow rate of 10 - 25 liters / min. Accordingly expensive is not only the pump technology itself, but also the reprocessing of the volume of water used. To filter out the erosively removed metal particles from the water namely filters are needed that can filter out particles on the order of a diameter of 1 micron.
Aufgabe der Erfindung ist es, das an sich bekannte Verfahren zum Aufrauhen von Metalloberflächen so zu modifizieren, dass es kostengünstiger und mit einem geringeren technischen Aufwand durchführbar ist.The object of the invention is to modify the known per se method for roughening metal surfaces so that it is cost-effective and feasible with less technical effort.
Das Grundprinzip der Erfindung besteht darin, anstatt mit reinem oder im Wesentlichen reinem Wasser mit einem Gemisch aus Wasser und einer Substanz zu arbeiten, die mit der aufzurauhenden Metalloberfläche chemisch reagiert bzw. diese "angreift". Zusätzlich zu einer rein mechanischen, d.h. erosiven bzw. abrasiven Aufrauhung mittels eines Hochdruckwasserstrahls erfolgt eine zusätzliche, auf chemischen Vorgängen beruhende Aufrauhung der Metalloberfläche. Ein ganz wesentlicher, sich hieraus ergebender Vorteil ist darin zu sehen, dass im Vergleich zu den herkömmlichen Verfahren mit geringeren Drücken gearbeitet werden kann, wodurch sich die Investitionskosten für die Pumpentechnik verringern. Je nach Art und Konzentration der dem Wasser zugegebenen Substanz kann das Druckniveau des Hochdruckwasserstrahls auf 1000 bis 2500 bar abgesenkt werden, ohne dass sich dadurch die "Aufrauhleistung" bzw. "Aufrauhqualität" gegenüber herkömmlichen Verfahren verschlechtert.The basic principle of the invention is, instead of working with pure or essentially pure water, with a mixture of water and a substance which chemically reacts or "attacks" the metal surface to be roughened. In addition to a purely mechanical, i. erosive or abrasive roughening by means of a high-pressure water jet takes place an additional, based on chemical processes roughening of the metal surface. A very significant, resulting advantage is the fact that can be compared to the conventional method with lower pressures, thereby reducing the investment costs for the pump technology. Depending on the nature and concentration of the substance added to the water, the pressure level of the high-pressure water jet can be lowered to 1000 to 2500 bar, without thereby worsening the "roughening performance" or "roughening quality" compared with conventional processes.
Sehr gute Ergebnisse lassen sich erzielen, wenn dem verwendeten Wasser beispielsweise Natronlauge (NaOH) zugesetzt wird, z.B. in einer Konzentration, mit der sich ein Laugenanteil im Bereich zwischen 0,001 % bis 7 % des Gesamtgemischs ergibt.Very good results can be obtained if, for example, sodium hydroxide solution (NaOH) is added to the water used, for example in a concentration, with which a caustic content in the range between 0.001% to 7% of the total mixture results.
Nach einer Weiterbildung der Erfindung wird die Metalloberfläche nach dem Aufrauhvorgang sorgfältig von Laugenrückständen befreit. Die Entfernung von Laugenrückständen kann beispielsweise durch Abspülen mit niedrigem Druck mit reinem Wasser erfolgen.According to a development of the invention, the metal surface is carefully freed from alkali residues after the roughening process. The removal of lye residues can be done, for example, by rinsing at low pressure with pure water.
Alternativ oder ergänzend zur Zugabe einer Lauge kann dem Wasser auch ein "Flussmittel" zugesetzt werden. Sogenannte Flussmittel sind aus der Löttechnik bekannt. Sie werden auf das Werkstück aufgetragen, um beim Löten eine gute Verbindung zwischen dem Lotmaterial und dem Material des Werkstücks zu erreichen. Dieses Prinzip kann auch beim Aufrauhen von Metalloberflächen mittels eines Hochdruckwasserstrahls eingesetzt werden. Nach dem Abstrahlen der aufzurauhenden Metalloberfläche und der Trocknung und Abkühlung der Oberfläche verbleiben Reste des dem zum Abstrahlen verwendeten Wassers zugesetzten Flussmittels auf der Metalloberfläche zurück.Alternatively or in addition to the addition of an alkali, a "flux" may also be added to the water. So-called fluxes are known from soldering. They are applied to the workpiece to achieve a good bond between the solder material and the material of the workpiece during soldering. This principle can also be used when roughening metal surfaces by means of a high-pressure water jet. After blasting the roughened metal surface and the drying and cooling of the surface remain residues of the water used for blasting added flux on the metal surface back.
Nach einer Weiterbildung der Erfindung wird die Metalloberfläche nach dem Aufrauhen mittels eines thermischen Beschichtungsverfahrens beschichtet. Ein geeignetes, bekanntes Beschichtungsverfahren ist z.B. das Lichtbogendrahtspritzverfahren, bei dem mittels eines Lichtbogens energiereiche Metallpartikel auf die zu beschichtende Oberfläche "geschossen" werden. Aufgrund der beim Auftreffen der Metallpartikel abzubauenden kinetische Energie bzw. aufgrund der hierbei lokal entstehenden hohen Drücke kommt es zum einem starken Temperaturanstieg, was dazu führt, dass die Flussmittelrückstände mit dem Material der Metalloberfläche (z.B. Aluminium bzw. Aluminium-Legierung) chemisch reagieren, was zu einer Entoxidierung der Metalloberfläche und im Ergebnis zu einer oxidarmen Verbindung zwischen dem Beschichtungsmaterial (z.B. Fe-Legierungen oder Al-Legierungen) und dem Material des Werkstücks (z.B. Aluminium) führt.According to a development of the invention, the metal surface is coated after roughening by means of a thermal coating method. A suitable, known coating method is, for example, the arc wire spraying method in which energy-rich metal particles are "shot" onto the surface to be coated by means of an arc. Due to the kinetic energy to be degraded upon impact of the metal particles or due to the local high pressures resulting there is a strong increase in temperature, which causes the flux residues with the material of the metal surface (eg aluminum or aluminum alloy) react chemically, which leads to a deoxidization of the metal surface and as a result to a low-oxide connection between the coating material (eg Fe alloys or Al alloys) and the material of the workpiece (eg aluminum).
Als "Flussmittel" kann z.B. das von der Solvay Fluor GmbH unter dem Markennamen "Nocoloc" hergestellte Flussmittel verwendet werden. Das Flussmittel kann dem zum Aufrauhen verwendeten Wasser in einer Konzentration zwischen z.B. 0,01 % und 10 % zugegeben werden.As a "flux", e.g. the flux produced by Solvay Fluor GmbH under the trade name "Nocoloc". The flux may be added to the water used for roughening in a concentration between e.g. 0.01% and 10% are added.
Dem zum Aufrauhen verwendeten Wasser kann ferner ein Farbstoff zugegeben werden. Beispielsweise können Farbpigmente in einer Größenordnung zwischen 0,01 µm und 1 µm in einer Konzentration von bis zu 15 % dem Wasser zugegeben werden. Die Zugabe von Farbstoff ermöglicht dann in einfacher Weise eine Kontrolle, ob sich die dem Wasser zugesetzte Lauge bzw. das dem Wasser zugesetzte Flussmittel gleichmäßig auf der aufzurauhenden bzw. aufgerauhten Metalloberfläche verteilt hat.Further, a dye may be added to the water used for roughening. For example, color pigments on the order of between 0.01 μm and 1 μm in a concentration of up to 15% can be added to the water. The addition of dye then makes it possible in a simple manner to control whether the lye added to the water or the flux added to the water has distributed uniformly over the metal surface to be roughened or roughened.
Claims (12)
dadurch gekennzeichnet, dass als Flüssigkeit ein Gemisch aus Wasser und einer Substanz verwendet wird, das bzw. die mit der Metalloberfläche chemisch reagiert.Method for roughening a metal surface, in particular a cylinder wall of a crankcase, wherein the metal surface is mechanically roughened by spraying with a high-pressure liquid jet,
characterized in that a mixture of water and a substance which reacts chemically with the metal surface is used as the liquid.
dadurch gekennzeichnet, dass es sich bei der Substanz um eine Lauge handelt.Method according to claim 1,
characterized in that the substance is an alkali.
dadurch gekennzeichnet, dass es sich bei der Lauge um eine Natronlauge (NaOH), insbesondere um konzentrierte Natronlauge, handelt.Method according to claim 2,
characterized in that the lye is a sodium hydroxide solution (NaOH), in particular concentrated sodium hydroxide solution.
dadurch gekennzeichnet, dass die Laugenkonzentration in Bezug auf das Gemisch im Bereich zwischen 0,001 % und 7 % liegt.Method according to one of claims 1 to 3,
characterized in that the lye concentration with respect to the mixture ranges between 0.001% and 7%.
dadurch gekennzeichnet, dass der Hochdruckflüssigkeitsstrahl einen Druck von bis zu 3500 bar, insbesondere einen Druck im Bereich zwischen 1000 bar und 2500 bar aufweist.Method according to one of claims 1 to 4,
characterized in that the high-pressure liquid jet has a pressure of up to 3500 bar, in particular a pressure in the range between 1000 bar and 2500 bar.
dadurch gekennzeichnet, dass nach dem Aufrauhen der Metalloberfläche Reste der dem Wasser zugesetzten Substanz mit reinem Wasser von der Metalloberfläche entfernt werden.Method according to one of claims 1 to 5,
characterized in that after roughening the metal surface residues of the water added substance are removed with pure water from the metal surface.
dadurch gekennzeichnet, dass es sich bei der Substanz um ein Flussmittel handelt.Method according to one of the preceding claims,
characterized in that the substance is a flux.
dadurch gekennzeichnet, dass die Flussmittelkonzentration in Bezug auf das Gemisch im Bereich zwischen 0,01 % und 10 % liegt.Method according to claim 7,
characterized in that the flux concentration with respect to the mixture ranges between 0.01% and 10%.
dadurch gekennzeichnet, dass nach dem mechanischen Aufrauhen Flussmittel auf der aufgerauhten Metalloberfläche zurückbleibt.Method according to one of claims 7 or 8,
characterized in that after mechanical roughening, flux remains on the roughened metal surface.
dadurch gekennzeichnet, dass die Metalloberfläche nach dem Aufrauhen mittels eines thermischen Beschichtungsverfahrens mit einer Oberflächenbeschichtung versehen wird, wobei es bei der hierbei an der Metalloberfläche auftretenden Temperatur zu einer chemischen Reaktion des auf der Metalloberfläche verbliebenen Flussmittels mit dem Werkstoff der Metalloberfläche kommt, insbesondere zu einer Entoxidierung der Metalloberfläche und zu einer oxidarmen Verbindung zwischen dem Beschichtungsmaterial und der Metalloberfläche.Method according to one of the preceding claims,
characterized in that the surface of the metal after roughening by means of a thermal coating process is provided with a surface coating, wherein it occurs at the temperature occurring here at the metal surface to a chemical reaction of the remaining on the metal surface flux with the material of the metal surface, in particular to a deoxidation the metal surface and an oxide-poor connection between the coating material and the metal surface.
dadurch gekennzeichnet, dass als Beschichtungsverfahren Laserspritzen zum Einsatz kommt, insbesondere ein thermisches Beschichtungsverfahren wie das Plasma- oder Lichtbogendrahtspritzen.Method according to claim 10,
characterized in that as a coating method laser spraying is used, in particular a thermal coating method such as plasma or arc wire spraying.
dadurch gekennzeichnet, dass dem Hochdruckflüssigkeitsstrahl ein Farbstoff zugesetzt wird.Method according to one of claims 1 to 11,
characterized in that a dye is added to the high-pressure liquid jet.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009019674.9A DE102009019674B4 (en) | 2009-04-30 | 2009-04-30 | Process for coating a cylinder wall of a crankcase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2246457A1 true EP2246457A1 (en) | 2010-11-03 |
| EP2246457B1 EP2246457B1 (en) | 2017-12-06 |
Family
ID=42320013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10003319.0A Active EP2246457B1 (en) | 2009-04-30 | 2010-03-27 | Method for roughening a metal surface, in particular a cylinder wall of a crankcase |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2246457B1 (en) |
| DE (1) | DE102009019674B4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032461A1 (en) * | 2013-09-05 | 2015-03-12 | Bayerische Motoren Werke Aktiengesellschaft | Method for machining a cylinder wall of an internal combustion engine |
| EP3132893A1 (en) * | 2015-08-20 | 2017-02-22 | Sturm Maschinen- & Anlagenbau GmbH | Method and apparatus for machining and roughening a surface |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019117851A1 (en) | 2019-07-02 | 2021-01-07 | Nemak, S.A.B. De C.V. | Method for connecting a component to another component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5380564A (en) | 1992-04-28 | 1995-01-10 | Progressive Blasting Systems, Inc. | High pressure water jet method of blasting low density metallic surfaces |
| EP0568315B1 (en) | 1992-04-28 | 1997-06-18 | Progressive Technologies, Inc. | Apparatus and method for blasting metallic surfaces |
| WO2002002845A2 (en) | 2000-06-30 | 2002-01-10 | Caterpillar Inc. | Method of treating ferrous-based substrates |
| DE102004038176A1 (en) * | 2004-08-06 | 2006-03-16 | Daimlerchrysler Ag | Method for fluid radiation of laterally thermally coated cylinder surfaces |
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| JPH0941179A (en) * | 1995-07-28 | 1997-02-10 | Tatsuo Okazaki | Chemicals adding cylinder having passage switching mechanism |
| US5723187A (en) * | 1996-06-21 | 1998-03-03 | Ford Global Technologies, Inc. | Method of bonding thermally sprayed coating to non-roughened aluminum surfaces |
| US5691004A (en) * | 1996-07-11 | 1997-11-25 | Ford Global Technologies, Inc. | Method of treating light metal cylinder bore walls to receive thermal sprayed metal coatings |
| US5820938A (en) * | 1997-03-31 | 1998-10-13 | Ford Global Technologies, Inc. | Coating parent bore metal of engine blocks |
| US6187388B1 (en) * | 1998-08-06 | 2001-02-13 | Ford Global Technologies, Inc. | Method of simultaneous cleaning and fluxing of aluminum cylinder block bore surfaces for thermal spray coating adhesion |
| BR0010375A (en) * | 1999-03-05 | 2002-02-13 | Alcoa Inc | Method for treating the surface of a metal object and method for brazing an aluminum alloy workpiece |
| DE19924141B4 (en) * | 1999-05-26 | 2006-04-20 | Daimlerchrysler Ag | A method for partially mechanically exposing hard raceway particles embedded in a hypereutectic cylinder liner |
| DE102005055708B4 (en) * | 2005-11-23 | 2014-02-13 | Daimler Ag | Thermally sprayed sliding layers with improved layer adhesion and their production process |
| DE102007010698A1 (en) * | 2007-03-06 | 2008-09-11 | Bayerische Motoren Werke Aktiengesellschaft | Process for the preparation of a coating |
-
2009
- 2009-04-30 DE DE102009019674.9A patent/DE102009019674B4/en active Active
-
2010
- 2010-03-27 EP EP10003319.0A patent/EP2246457B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5380564A (en) | 1992-04-28 | 1995-01-10 | Progressive Blasting Systems, Inc. | High pressure water jet method of blasting low density metallic surfaces |
| US5626674A (en) | 1992-04-28 | 1997-05-06 | Progressive Technologies, Inc. | High pressure water jet apparatus for preparing low density metallic surface for application of a coating material |
| EP0568315B1 (en) | 1992-04-28 | 1997-06-18 | Progressive Technologies, Inc. | Apparatus and method for blasting metallic surfaces |
| WO2002002845A2 (en) | 2000-06-30 | 2002-01-10 | Caterpillar Inc. | Method of treating ferrous-based substrates |
| DE102004038176A1 (en) * | 2004-08-06 | 2006-03-16 | Daimlerchrysler Ag | Method for fluid radiation of laterally thermally coated cylinder surfaces |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032461A1 (en) * | 2013-09-05 | 2015-03-12 | Bayerische Motoren Werke Aktiengesellschaft | Method for machining a cylinder wall of an internal combustion engine |
| CN105555987A (en) * | 2013-09-05 | 2016-05-04 | 宝马股份公司 | Method for machining a cylinder wall of an internal combustion engine |
| US20160208370A1 (en) * | 2013-09-05 | 2016-07-21 | Bayerische Motoren Werke Aktiengesellschaft | Method for machining a cylinder wall of an internal combustion engine |
| US10214803B2 (en) | 2013-09-05 | 2019-02-26 | Bayérische Motoren Werke Aktiengesellschaft | Method for machining a cylinder wall of an internal combustion engine |
| EP3132893A1 (en) * | 2015-08-20 | 2017-02-22 | Sturm Maschinen- & Anlagenbau GmbH | Method and apparatus for machining and roughening a surface |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2246457B1 (en) | 2017-12-06 |
| DE102009019674B4 (en) | 2016-09-01 |
| DE102009019674A1 (en) | 2010-12-23 |
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