US20160130691A1 - Surface activation by plasma jets for thermal spray coating on cylinder bores - Google Patents

Surface activation by plasma jets for thermal spray coating on cylinder bores Download PDF

Info

Publication number
US20160130691A1
US20160130691A1 US14/535,404 US201414535404A US2016130691A1 US 20160130691 A1 US20160130691 A1 US 20160130691A1 US 201414535404 A US201414535404 A US 201414535404A US 2016130691 A1 US2016130691 A1 US 2016130691A1
Authority
US
United States
Prior art keywords
plasma
plasma spraying
spraying device
protective coating
material precursor
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.)
Abandoned
Application number
US14/535,404
Other languages
English (en)
Inventor
Yucong Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Priority to US14/535,404 priority Critical patent/US20160130691A1/en
Assigned to GM Global Technology Operations LLC reassignment GM Global Technology Operations LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WANG, YUCONG
Priority to DE102015118580.6A priority patent/DE102015118580A1/de
Priority to CN201511035871.8A priority patent/CN105648381A/zh
Priority to JP2015219453A priority patent/JP2016089275A/ja
Publication of US20160130691A1 publication Critical patent/US20160130691A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • C23C4/127—
    • 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
    • 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
    • C23C4/134—Plasma spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders

Definitions

  • This invention is related generally to achieving better adhesion between a thermal sprayed protective coating and a target substrate, and in particular to pretreating the substrate with an air plasma spray prior to application of the protective coating.
  • Thermal spray techniques have been shown to be an effective way to deposit protective coatings—such as thermal barrier coatings, wear coatings, anti-corrosion coatings or the like—onto a workpiece.
  • protective coatings such as thermal barrier coatings, wear coatings, anti-corrosion coatings or the like.
  • the high deposition rates make such coating approaches amenable to large-scale manufacturing, such as that associated with the production of engine cylinder bores and the pistons that are designed to reciprocate in them.
  • Adhesion of the protective coating to a substrate is a very important metric for determining the suitability of the coating for a particular application (such as for the harsh environments produced within the combustion chamber of an internal combustion engine cylinder bore).
  • VOCs volatile organic compounds
  • thermal spray coating is through plasma spraying, where the constituents that make up numerous protective coatings are subjected an ionized flow of an inert gas.
  • plasma spraying is beneficial in that the gas is chemically inert, while the target workpiece substrate may be kept relatively cool; these factors make it possible to avoid harm to both the impinging coating and substrate in a manner not possible with other elevated-temperature or chemically-active processes.
  • oppositely-charged electrodes in the form of a cylindrical anode that circumscribes a bullet-shaped cathode form a flowpath that defines a nozzle at the discharge end.
  • a direct current (DC) source is applied to the electrodes such that when the inert gas is introduced into an annular space between the electrodes, it is ionized to form a plasma that exits the nozzle as a jet stream.
  • a separate coating insertion path (typically in the form of a tube) injects the protective coating material precursor (which is typically in powdered form) into the jet of plasma that develops in the nozzle.
  • the device typically referred to as a gun
  • the formation of the arc coincides with the electrons in the gas being stripped from their atoms and accelerated toward the anode, while the atoms are accelerated toward the cathode.
  • a steady supply of electric current helps the arc to be pushed toward the exit in the nozzle, which in turn ionizes other atoms or molecules in the gas stream that results in a high-speed plasma that upon exiting the gun can be directed to impinge upon the suitable workpiece substrate.
  • PTWA plasma transferred wire arc
  • thermal spraying Unlike powder-based feedstocks, PTWA uses a sold wire that melts when subjected to the plasma jet produced by the gun. While plasma spraying in general (and PTWA in particular) has been especially well-suited to coating the aforementioned engine cylinder bores, it has not been used for substrate activation as a way to improve the ordinarily weak bonding exhibited between the protective coating and the substrate. Instead, recourse has traditionally been made to either the separate bonding coating or one or more of the substrate activation pretreatments mentioned above. There is a need for a simpler, less expensive approach that also reduces negative environmental externalities.
  • the current invention involves utilizing an air plasma jet produced from a plasma spraying apparatus to pretreat by activation the substrate before applying a protective coating.
  • oxide layers may be removed, etched away or decomposed by melting or dissolving just prior to depositing the protective coating with this or another plasma spraying apparatus.
  • air plasma jet also referred to herein as air plasma
  • a method of activating the surface of an aluminum-based engine cylinder bore substrate includes cleaning the surface to remove at least a portion of an oxide formed thereon, and operating a plasma spraying device such that an air plasma jet produced thereby is accelerated toward the surface so that it decomposes or removes any remaining oxides and other contaminants that may otherwise impact the ability of the surface and a subsequently-applied protective coating to adhere to one another.
  • the substrate being exposed to the cleaning and the plasma jet is an engine cylinder bore.
  • the plasma spraying device is a pretreatment plasma spraying device that is separate from a plasma spraying device used to deposit the subsequent protective coating on the engine cylinder bore in such configuration, the pretreatment plasma spraying device is simplified.
  • One significant way it is simplified is to be devoid of any protective coating material precursor receiving mechanism such that it may operate at a lower power setting than would otherwise be required, although in another form, it could be achieved by a traditional plasma spraying device where the protective coating material precursor receiving mechanism has been disabled; either variant is deemed to be within the scope of the present invention.
  • the activation of the substrate is accomplished without being subjected to separate mechanical activation step (such as those discussed above in the Background section of this disclosure).
  • the terms “activation” and “pretreatment” are used interchangeably to describe the process of improving the surface characteristics of the target substrate with an air plasma jet so that long-term adherence of a subsequently-applied protective coating (such as low and high carbon steel wear-resistant coatings such as 0.1-0.8 wt % carbon, as well as the steels containing other alloying elements for corrosion and wear protection (such as Cr, Ni, Cu or the like) is improved.
  • a subsequently-applied protective coating such as low and high carbon steel wear-resistant coatings such as 0.1-0.8 wt % carbon, as well as the steels containing other alloying elements for corrosion and wear protection (such as Cr, Ni, Cu or the like) is improved.
  • the surface activation achieved by the present invention is done so without having to resort to traditional mechanical activation approaches such as those discussed above.
  • a method of coating the surface of an aluminum-based substrate includes cleaning the surface to remove at least a portion of an oxide formed thereon, operating a first plasma spraying device such that a plasma jet produced by the first device impinges on the cleaned surface, and then operating a second plasma spraying device such that a protective coating material precursor introduced into it impinges on the cleaned surface that has been pretreated with the plasma jet from the first plasma spraying device. In this way, their surfaces are being exposed to the first and second plasma spraying devices in sequential fashion.
  • a method of coating a cylinder bore of an engine block includes cleaning the surface with a solution containing at least one of potassium and fluorine, operating a first plasma spraying device such that a pretreatment air plasma jet produced by the first device impinges onto the cleaned surface, and operating a second plasma spraying device such that a protective coating material precursor introduced into the plasma jet produced in the second device impinges on the pretreated surface.
  • FIG. 1 depicts an isometric view of a notional engine block with four cylinder bores formed therein that could receive a protective coating according to an aspect of the present invention
  • FIG. 2 depicts a plasma spray gun that may be used in conjucntion with the present invention.
  • FIG. 3 depicts the cooperative placement of the plasma spray gun of FIG. 2 with the wall of an engine cylinder bore such that the gun may be used to pretreat the wall or depsoit a protective coating onto the wall.
  • FIG. 1 a simplified view of four-cylinder automotive internal combustion engine block 100 is shown.
  • the block 100 includes portions for—among other things—the crankcase 110 , the crankshaft bearing 120 , the camshaft bearing 130 (in the case of engines with overhead valves and pushrods), water cooling jackets 140 , flywheel housing 150 and cylinder bores 160 .
  • These bores 160 may include an alloyed surface layer (not shown) that is either integrally formed with the substrate of each bore 160 , or as a separate insert or sleeve that is sized to fit securely within. In one form, such alloyed surface layer can be used to enhance the corrosion, wear or thermal resistance of the bore 160 .
  • this alloyed surface layer is made from a heavy cast iron or related material.
  • the plasma spraying process involves the latent heat of ionized inert gas (plasma) being used to create the heat source.
  • a plasma spraying device also referred to herein as a plasma spray gun or more simply as a plasma gun 300 that can be used as part of the present invention is shown in partial cutaway view.
  • Gun 300 includes a housing 310 with a coolant channel 320 formed therein, as well as a plasma gas injection port 330 and protective coating material precursor injection port 340 .
  • the protective coating material precursor injection port 340 may be removed or disabled.
  • An external DC current source is connected to the bullet-shaped cathode 350 , while the surrounding portion of the housing 310 forms the anode 360 .
  • cathode 350 is made from a thoriated tungsten, while the anode 360 is made from concentrically-shaped copper.
  • the most common gas used to create the plasma is argon; this is referred to as the primary gas and is made to flow between the electrodes and a nozzle 390 .
  • a high frequency or high voltage alternating electric arc is formed between the nozzle 390 and the anode 360 to ionize the gas stream.
  • the arc thickens and increases the degree of ionization. This has the effect of increasing the power and also, due to the expansion of gas, an increase in the velocity of the gas stream.
  • the gas being used as the arc plasma flame is substantially pure argon, a very large arc current is needed to create sufficient power to melt most of the protective spray coating precursor materials that are used in traditional plasma spraying operations.
  • the gas velocity may be too high to melt many refractory materials.
  • secondary gases such as hydrogen
  • the feed stock wire or powder spray material for the material being deposited in a plasma spraying process is injected into the gas stream.
  • Air plasma can be generated with the same principle as described above, although the power needs are much lower.
  • a gun such as gun 300 shown and described herein
  • a gun that is devoid of the need for the higher power requirements associated with a full protective coating material precursor injection capability may be used for surface activation through an air plasma jet as a separate air plasma spraying device.
  • the gun 300 used as part of the present invention may be coupled to a production line-based manufacture of internal combustion engines in general and the walls or bores formed in cylinder blocks in particular.
  • the gun 300 may be made to pivot about an axis that moves along the piston travel direction within the bore 160 so that it coats a substantial entirety of the bore 160 inner surface periphery while rotating circumferentially along cylinder wall.
  • a relatively cohesive plasma jet 380 is ejected from a nozzle 390 in order to pretreat the desired surface.
  • the plasma jet 380 includes the melted material droplets 385 ; otherwise, the plasma jet 380 is of the air plasma variant where no such droplets 385 are present.
  • a first gun 300 (which does include a protective coating material precursor injection port 340 ) or plasma wire arc coating system (such as through PTWA) may be used; either are deemed to be compatible with the air plasma pretreatment of the present invention.
  • gun 300 is configured to perform both the air plasma pretreatment and protective coating deposition operations; in this configuration, the protective coating material precursor through port 340 is present such that prior to the introduction of a protective coating material precursor therethrough, the plasma jet 380 is activated without the introduction of the protective coating material precursor to facilitate plasma bombardment of the target substrate with only the plasma jet 380 before the actual plasma coating process is initiated.
  • gun 300 may be used for the deposition of the protective coating, while in a preferred embodiment, a simplified version of gun 300 that does not include a provision for introducing the protective coating material precursor therein may be used in cooperation with the more comprehensive gun 300 that does include the protective coating material precursor through port 340 such that the simplified version is used solely for the pretreatment operation while the more comprehensive version (such as shown in FIG. 2 ) is used exclusively for the coating deposition operation.
  • the gun being used for pretreatment also referred to herein as an air plasma gun in that it only dispenses an air plasma jet
  • that used for protective coating deposition constitutes a second plasma spraying device.
  • the plasma jet surface activation of the present invention avoids the difficulties associated with using organic and silicone-based materials while still promoting more full wettability of the substrate.
  • inert plasma gun gases for example, a mixture of argon and hydrogen
  • the plasma jet 380 gas temperatures and velocity distributions range widely depending on numerous factors, including nozzle 390 design, power levels and gas compositions.
  • the plasma gas is preferable an inert gas.
  • suitable plasma gas is argon, often with hydrogen or another secondary or auxiliary gas.
  • Argon alone creates a relatively low-energy plasma related to its breakdown and thermal heat capacity, while other inert gases, such as nitrogen, produces a relatively hot plasma gas; use of one gas versus the other may be dictated by other factors, such as the propensity for reaction with other materials.
  • Other additives, such as helium may be used to form a mixture (for example, an Ar/He mixture with approximately 20 to 50 percent helium by volume); this addition may help improve the thermal conductivity of plasma mixture, which in turn increases the plasma's heat capacity.
  • argon/hydrogen mixtures for example, approximately 5 to 15 percent hydrogen by volume
  • jet temperatures i.e., enthalpy
  • argon/helium mixtures due to hydrogen's diatomic structure and its high collisional cross section related to its low mass.
  • a gun 300 from an existing plasma spray coating system (which includes the protective coating material precursor injection port 340 or related material introduction apparatus) may be used, while in another, a separate (i.e., dedicated, or stand-alone) gun that requires lower power and only uses air as a plasma working fluid without a separate protective coating material precursor through port 340 may be used in conjunction with gun 300 ; an example of such a dedicated gun is commercially available from Plasmatreat North America of Elgin, Ill.
  • One benefit of having a separate gun for the pretreatment and a separate gun for the protective coating deposition is that the high power densities (40-150 kW) being utilized by conventional DC-arc plasma guns create higher electrode erosion rates, which in turn may necessitate more system maintenance.
  • the cylinder bores 160 are bored to the desired size, their surface is cleaned by immersing in a 0.5M potassium-fluoride bath; this solution etches away the oxide layer that forms on the bore 160 surface, and then reacts with the now-exposed aluminum to form a K 3 AlF 6 and KAlF 4 flux.
  • the jet from the plasma gun 300 is made to impinge onto the fluxed surface to thermally activate the flux; this has the effect of melting the salt and dissolving any remaining surface oxides.
  • the cylinder bore 160 is prepared by soak cleaning followed by an acid dip.
  • the acid solution used for the dip is nitric acid (up to 50%); this dip may contain a small amount of fluoride either from hydrofluoric acid or a fluoride salt. Immersion of the substrate to such dip is preferably in the range of about 1 to 10 minutes, as excess etching can damage parts and cause pitting. Thorough rinsing is required between each of the exposures to the acid dip.
  • gun 300 that can be used to pretreat the inner wall of an engine cylinder bore is shown. It can be used directly in line—conveyor belt as well as robotic application is possible. High speed up to 40 meters/minute of plasma jet treatment may be achieved.
  • the method of the present invention is preferably used as part of a production line-based manufacture of internal combustion engines in general and the walls or bores formed in cylinder blocks 100 in particular. It can also be used for treating parts other than engines that require thermal spray coatings for good coating adhesion.
  • the gun 300 mounted onto a rotating stem it can be made to provide complete circumferential surface pretreatment that is defined by the wall or bore. As such, the approach of the present invention avoids the necessity of having the larger (and therefore more cumbersome) coated component be moved during the wall surface preparation and subsequent coating.
  • Cylinder bore 160 of engine block 100 is defines a circumferential inner wall 160 A.
  • a stem in the form of a pressurized axial fluid conduit 200 may be used as a secure mounting platform for gun 300 (shown presently in simplified form). The stem may be made to rotate. Details of the cooperation between the rotating axial fluid conduit 200 and its use in cylinder bore 160 may be found in co-pending U.S. application Ser. No. 14/335,974 entitled NON-DESTRUCTIVE ADHESION TESTING OF COATING TO ENGINE CYLINDER BORE that is owned by the Assignee of the present invention and incorporated herein by reference in its entirety.

Landscapes

  • 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)
  • Coating By Spraying Or Casting (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
US14/535,404 2014-11-07 2014-11-07 Surface activation by plasma jets for thermal spray coating on cylinder bores Abandoned US20160130691A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US14/535,404 US20160130691A1 (en) 2014-11-07 2014-11-07 Surface activation by plasma jets for thermal spray coating on cylinder bores
DE102015118580.6A DE102015118580A1 (de) 2014-11-07 2015-10-30 Oberflächenaktivierung mittels plasmastrahlen für eine thermische spritzbeschichtung auf zylinderbohrungen
CN201511035871.8A CN105648381A (zh) 2014-11-07 2015-11-06 对于缸孔上的热喷涂层通过等离子射流进行表面活化
JP2015219453A JP2016089275A (ja) 2014-11-07 2015-11-09 シリンダボアの溶射被覆のためのプラズマ噴射による表面活性化

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/535,404 US20160130691A1 (en) 2014-11-07 2014-11-07 Surface activation by plasma jets for thermal spray coating on cylinder bores

Publications (1)

Publication Number Publication Date
US20160130691A1 true US20160130691A1 (en) 2016-05-12

Family

ID=55803467

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/535,404 Abandoned US20160130691A1 (en) 2014-11-07 2014-11-07 Surface activation by plasma jets for thermal spray coating on cylinder bores

Country Status (4)

Country Link
US (1) US20160130691A1 (zh)
JP (1) JP2016089275A (zh)
CN (1) CN105648381A (zh)
DE (1) DE102015118580A1 (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3062397A1 (fr) * 2017-01-31 2018-08-03 Safran Aircraft Engines Procede et installation de fabrication d'une piece par plasmaformage
US20180251880A1 (en) * 2017-03-04 2018-09-06 Man Truck & Bus Ag Internal combustion engine and method for producing a crankcase and/or a cylinder liner for an internal combustion engine
US10526996B2 (en) 2016-08-10 2020-01-07 GM Global Technology Operations LLC Adhesion of thermal spray using compression technique
US10612119B2 (en) 2016-11-23 2020-04-07 GM Global Technology Operations LLC Surface roughening tool and method
DE102016209505B4 (de) 2015-06-08 2022-02-10 GM Global Technology Operations LLC Verfahren zur beschichtung der oberfläche einermotorzylinderbohrung sowie verfahren zum bilden einerschnittstelle zwischen einem kolben und einer oberfläche einermotorzylinderbohrung
US11571752B2 (en) 2018-03-14 2023-02-07 Bayerische Motoren Werke Aktiengesellschaft Method for machining a crankcase and machining device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6499998B2 (ja) * 2016-06-27 2019-04-10 株式会社増田酸素工業所 溶融金属処理部材の表面層形成方法
US20190040514A1 (en) * 2017-08-03 2019-02-07 GM Global Technology Operations LLC Synergy for improved thermal spray adhesion
CN110777320A (zh) * 2019-10-23 2020-02-11 福建阿石创新材料股份有限公司 一种旋转铌残靶的修复方法
EP3896190B1 (de) * 2020-04-16 2024-06-05 Sturm Maschinen- & Anlagenbau GmbH Verfahren und anlage zur metallischen beschichtung einer bohrungswand

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228816A (en) * 1962-02-21 1966-01-11 Rohr Corp Process and composition for cleaning and polishing aluminum and its alloys

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122633A (ja) * 1974-08-20 1976-02-23 Mitsubishi Heavy Ind Ltd Kinzokuyoshahifukuhoho
JPS6035988B2 (ja) * 1979-01-16 1985-08-17 三菱重工業株式会社 プラズマ溶射法
JPS5655562A (en) * 1979-10-11 1981-05-16 Mitsubishi Heavy Ind Ltd Plasma spraying method
JPS59140362A (ja) * 1983-01-31 1984-08-11 Mitsubishi Heavy Ind Ltd 高硬度材への溶射における前処理方法
JPS6256562A (ja) * 1985-09-04 1987-03-12 Toyota Motor Corp セラミツク溶射ピストンの製造方法
JPS6369958A (ja) * 1986-09-10 1988-03-30 Daiichi Jitsugyo Kk 溶射プロセスの前処理方法
JPH02225653A (ja) * 1989-02-23 1990-09-07 Komatsu Ltd 高密着力プラズマ溶射法
JPH0598412A (ja) * 1991-10-07 1993-04-20 Nippon Steel Corp 被溶射材料の前処理方法
JPH06235057A (ja) * 1992-12-07 1994-08-23 Ford Motor Co 複合メタライジング線およびその使用方法
CA2164142A1 (en) * 1994-12-09 1996-06-10 V. Durga Nageswar Rao Method of making engine blocks with coated cylinder bores
CN1178256A (zh) * 1996-06-21 1998-04-08 福特汽车公司 沉积一种被分类为介于可机加工与耐磨损之间的热喷涂层的方法
US5958521A (en) * 1996-06-21 1999-09-28 Ford Global Technologies, Inc. Method of depositing a thermally sprayed coating that is graded between being machinable and being wear resistant
JP2000054105A (ja) * 1998-07-16 2000-02-22 Sulzer Metoco Ag 表面の前処理および被覆方法
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
JP2000328222A (ja) * 1999-05-21 2000-11-28 Suzuki Motor Corp シリンダブロックの溶射前処理方法及び溶射方法
JP4107282B2 (ja) * 2004-10-15 2008-06-25 日産自動車株式会社 溶射前処理方法およびエンジンのシリンダブロックならびに溶射前処理装置
JP5556065B2 (ja) * 2009-06-19 2014-07-23 日産自動車株式会社 溶射前処理方法及び溶射前処理装置
US20140335282A1 (en) * 2011-12-09 2014-11-13 Georg Fischer Automotive (Suzhou) Co Ltd Method for coating a substrate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3228816A (en) * 1962-02-21 1966-01-11 Rohr Corp Process and composition for cleaning and polishing aluminum and its alloys

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016209505B4 (de) 2015-06-08 2022-02-10 GM Global Technology Operations LLC Verfahren zur beschichtung der oberfläche einermotorzylinderbohrung sowie verfahren zum bilden einerschnittstelle zwischen einem kolben und einer oberfläche einermotorzylinderbohrung
US10526996B2 (en) 2016-08-10 2020-01-07 GM Global Technology Operations LLC Adhesion of thermal spray using compression technique
US10612119B2 (en) 2016-11-23 2020-04-07 GM Global Technology Operations LLC Surface roughening tool and method
FR3062397A1 (fr) * 2017-01-31 2018-08-03 Safran Aircraft Engines Procede et installation de fabrication d'une piece par plasmaformage
US20180251880A1 (en) * 2017-03-04 2018-09-06 Man Truck & Bus Ag Internal combustion engine and method for producing a crankcase and/or a cylinder liner for an internal combustion engine
US10550461B2 (en) * 2017-03-04 2020-02-04 Man Truck & Bus Ag Internal combustion engine and method for producing a crankcase and/or a cylinder liner for an internal combustion engine
RU2757087C2 (ru) * 2017-03-04 2021-10-11 Ман Трак Унд Бас Аг Двигатель внутреннего сгорания и способ изготовления картера и/или гильзы цилиндра для двигателя внутреннего сгорания
US11571752B2 (en) 2018-03-14 2023-02-07 Bayerische Motoren Werke Aktiengesellschaft Method for machining a crankcase and machining device

Also Published As

Publication number Publication date
CN105648381A (zh) 2016-06-08
JP2016089275A (ja) 2016-05-23
DE102015118580A1 (de) 2016-05-12

Similar Documents

Publication Publication Date Title
US20160130691A1 (en) Surface activation by plasma jets for thermal spray coating on cylinder bores
US8036341B2 (en) Stationary x-ray target and methods for manufacturing same
US7879203B2 (en) Method and apparatus for cathodic arc ion plasma deposition
US5514422A (en) Composite metallizing wire and method of using
Boxman et al. Principles and applications of vacuum arc coatings
JPH08246943A (ja) シリンダ孔壁がコーティングされたエンジンブロックを製造する方法
US9790889B2 (en) Piston
JP2006130503A (ja) プラズマ溶射装置
KR20070044508A (ko) 플라즈마 처리 용기내 복합막 피복 부재 및 그 제조 방법
CN106521400B (zh) 一种强化重型卡车气缸套内壁的等离子转移弧喷涂方法
JP2018507316A (ja) プラズマガンノズルの腐食防止及びガンノズルの腐食防止方法
JP2006131997A (ja) ワークピースの修復方法
US20160356242A1 (en) TiO2 APPLICATION AS BONDCOAT FOR CYLINDER BORE THERMAL SPRAY
US20040126492A1 (en) Method and apparatus for using ion plasma deposition to produce coating
US5976704A (en) Composite metallizing wire and method of using
US20120160664A1 (en) Cathodic arc vapor deposition coatings for dimensional restoration of surfaces
US20210069778A1 (en) Surface treated additive manufacturing printhead nozzles and methods for the same
Takalapally et al. A critical review on surface coatings for engineering materials
RU2489512C2 (ru) Способ антикоррозионной обработки детали путем осаждения слоя циркония и/или циркониевого сплава
JPS61214400A (ja) プラズマガンの陽極ノズル
JP6324508B2 (ja) 内燃機関のクランクケースの溶射されたシリンダ摺動面を形成する方法並びにこのようなクランクケース
CN109722109A (zh) 一种金属型管电解加工阴极绝缘涂层及制备方法
US9829105B2 (en) Nitride coated piston ring
US20150101924A1 (en) Assembly and method of coating an interior surface of an object
US20150060413A1 (en) Wire alloy for plasma transferred wire arc coating processes

Legal Events

Date Code Title Description
AS Assignment

Owner name: GM GLOBAL TECHNOLOGY OPERATIONS LLC, MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WANG, YUCONG;REEL/FRAME:034124/0073

Effective date: 20141107

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION