US20140225330A1 - Piston ring - Google Patents

Piston ring Download PDF

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Publication number
US20140225330A1
US20140225330A1 US14/258,411 US201414258411A US2014225330A1 US 20140225330 A1 US20140225330 A1 US 20140225330A1 US 201414258411 A US201414258411 A US 201414258411A US 2014225330 A1 US2014225330 A1 US 2014225330A1
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United States
Prior art keywords
thermal spray
spray coating
tungsten carbide
nickel
piston ring
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
US14/258,411
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English (en)
Inventor
Yoshiyuki Saito
Takeshi Yamada
Yoshiyuki Umemoto
Nobuaki Kato
Hiroaki Mizuno
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.)
IHI Corp
Diesel United Ltd
Original Assignee
IHI Corp
Diesel United Ltd
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Filing date
Publication date
Application filed by IHI Corp, Diesel United Ltd filed Critical IHI Corp
Assigned to IHI CORPORATION, DIESEL UNITED, LTD. reassignment IHI CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KATO, NOBUAKI, MIZUNO, HIROAKI, SAITO, YOSHIYUKI, UMEMOTO, YOSHIYUKI, YAMADA, TAKESHI
Publication of US20140225330A1 publication Critical patent/US20140225330A1/en
Priority to US15/178,823 priority Critical patent/US10689743B2/en
Abandoned legal-status Critical Current

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    • 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
    • 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
    • C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
    • 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
    • C23C4/129—Flame 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
    • F02F5/00—Piston rings, e.g. associated with piston crown
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials

Definitions

  • the present invention relates to a piston ring, and particularly to a piston ring that is provided with a thermal spray coating.
  • the piston rings that are provided in an internal combustion engine such as a diesel engine have an anti-seize protective coating provided on a sliding surface thereof that slides against the cylinder liner.
  • an internal combustion engine such as a diesel engine
  • multi-layer chrome plating has been commonly used for this protective coating, however, in recent years, due to changes in the sliding environment of the piston rings of internal combustion engines, instances in which seizures have occurred in the actual machinery even while the multi-layer chrome plating forming the protective coating is still extant are being seen more and more often.
  • a piston ring that is provided with a thermal spray coating (i.e., a cermet thermal spray coating) instead of multi-layer chrome plating as a protective coating is disclosed.
  • This thermal spray coating has a hard phase formed from hard particles of tungsten carbide (WC) and chromium carbide (Cr 3 C 2 ) and the like, and a metallic binder phase that is formed from molybdenum (Mo), cobalt (Co), nickel (Ni), and chrome (Cr). It is easier for microscopic portions of the coating to fall of in this thermal spray coating than in multi-layer chrome plating, so that a thermal spray coating has superior seizure resistance.
  • Patent Document 1 Japanese Patent Application Laid-Open (JP-A) No. 2005-155711
  • thermal spray coating has excellent seizure resistance, its hardness and brittleness make it easier for cracks to occur in it. Moreover, thermal spray coating has inferior workability compared to multi-layer chrome plating so that the problem arises that it is difficult to use in practical applications, and at the actual level of real machinery there are hardly any applications in which it actually used.
  • the present invention was conceived in view of the above-described problems and it is an object thereof to provide a piston ring that is provided with a thermal spray coating that has superior seizure resistance compared to multi-layer chrome plating and also has equivalent or superior workability compared to multi-layer chrome plating.
  • the inventors of the present application performed repeated exhaustive experiments in order to solve the above-described problems. As a result, they discovered that, by adjusting the mean particle diameter of predetermined hard particles contained in the thermal spray powder to within a predetermined range, it was possible to form a thermal spray coating that was provided with both seizure resistance and workability. As a consequence of this, the present invention was attained.
  • a piston ring is employed that is provided with a thermal spray coating that contains tungsten carbide and chrome carbide as a hard phase, and contains nickel as a metallic binder phase, and in which the thermal spray coating is formed by the spraying of a thermal spray powder that has been produced by means of a granulation sintering method, and that contains hard particles in which the mean particle diameter of the tungsten carbide has been adjusted by means of a BET method to fall within a range of not less than 0.15 ⁇ m and not more than 0.45 ⁇ m.
  • the thermal spray coating contains nickel within a range of not less than 7.0 wt % and not more than 18.5 wt % as a metallic binder phase.
  • the thermal spray coating has a composition that contains 7.0 wt % of nickel as the metallic binder phase, and 20 wt % of chromium carbide as the hard phase, and in which the remainder is made up of tungsten carbide as a hard phase and inevitable impurities.
  • the thermal spray coating has a composition that contains 12.5 wt % of nickel as the metallic binder phase, and 37.5 wt % of chromium carbide as the hard phase, and in which the remainder is made up of tungsten carbide as a hard phase and inevitable impurities.
  • a structure is employed in which the porosity of the thermal spray coating is 3% or less.
  • a structure is employed in which the thermal spray coating is formed by spraying using a high-speed frame spraying method.
  • a piston ring that is provided with a thermal spray coating that has superior seizure resistance compared to multi-layer chrome plating and also has equivalent or superior workability compared to multi-layer chrome plating.
  • FIG. 1 is a schematic view showing the structure of a piston ring according to an embodiment of the present invention.
  • FIG. 2 is a view illustrating a seizure resistance evaluation test according to an embodiment of the present invention.
  • FIG. 3A is a view illustrating the state of a work surface of a test specimen after a workability evaluation test according to an embodiment of the present invention.
  • FIG. 3B is a view illustrating the state of a work surface of a test specimen after a workability evaluation test according to an embodiment of the present invention.
  • FIG. 3C is a view illustrating the state of a work surface of a test specimen after a workability evaluation test according to an embodiment of the present invention.
  • FIG. 4A is a view illustrating the state of a work surface of a test specimen after a workability evaluation test according to an embodiment of the present invention.
  • FIG. 4B is a view illustrating the state of a work surface of a test specimen after a workability evaluation test according to an embodiment of the present invention.
  • FIG. 5 is a graph showing a relationship between the mean particle diameter of tungsten carbide, a crack length, and a sintering time according to an embodiment of the present invention.
  • FIG. 6 is a graph showing a relationship between the mean particle diameter of tungsten carbide, a crack length, and a Vickers hardness according to an embodiment of the present invention.
  • FIG. 7 is a graph showing a relationship between a nickel binder amount, a sintering time, and a Vickers hardness according to an embodiment of the present invention.
  • FIG. 8 is a graph showing a relationship between a nickel binder amount and a crack length according to an embodiment of the present invention.
  • FIG. 9 is a graph showing a relationship between a nickel binder amount, a crack length, and a sintering time according to an embodiment of the present invention.
  • FIG. 10 is a graph showing a relationship between a nickel binder amount, a crack length, and a Vickers hardness according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural view showing the structure of a piston ring 1 according to an embodiment of the present invention.
  • the piston ring 1 of the present embodiment is provided in a piston 100 of an internal combustion engine such as a diesel engine or the like.
  • the piston 100 is constructed such that it is able to slide inside a cylinder liner 101 , and the piston ring 1 has a thermal spray coating 3 provided on a sliding surface thereof that serves as a protective coating for a base material 2 .
  • the thermal spray coating 3 contains tungsten carbide (WC) and chrome carbide (Cr 3 C 2 ) as a hard phase, and contains nickel (Ni) as a metallic binder phase.
  • This thermal spray coating 3 is formed by the spraying of a thermal spray powder that has been produced by means of a granulation sintering method, and that contains hard particles in which the mean particle diameter of the tungsten carbide has been adjusted to fall within a range of not less than 0.15 ⁇ m and not more than 0.45 ⁇ m.
  • the preparation of a thermal spray coating by means of a granulation sintering method is performed in the following manner. Firstly, tungsten carbide powder that has been adjusted such that it lies within the above-described predetermined range is added to a dispersion medium so as to create a slurry. At this time, it is also possible for a suitable organic binder or inorganic binder to be added to the slurry. Next, using a spray granulator, granules are created from the slurry, and these granules are then sintered. The sintered granules are then cracked and classified. As a result, it is possible to manufacture a thermal spray powder by means of a granulation sintering method that contains hard particles in which the mean particle diameter of the tungsten carbide has been adjusted to fall within the above-described range.
  • D represents the mean particle diameter ⁇ m
  • ⁇ represents the theoretical density of WC (15.7 (g/cm 3 )
  • S represents the specific surface area (m 2 /g) measured using a BET method.
  • the mean particle diameter D is determined by assuming that the particles are spherical, and then calculating their diameters using the specific surface area of the powder determined by the BET method. Note that the gas used for this BET calculation is N 2 -70 vol % He.
  • the aforementioned adjustment of the mean particle diameter of the tungsten carbide such that this falls within a range of not less than 0.15 ⁇ m and not more than 0.45 ⁇ m refers to an adjustment to within a range of not less than 0.15 ⁇ m and not more than 0.45 ⁇ m using mean particle diameters measured via the BET method.
  • the mean particle diameters described below are also mean particle diameters determined via the BET method.
  • the thermal spray coating 3 of the present embodiment is formed by, for example, spraying a thermal spray powder that contains hard particles in which the mean particle diameter of the tungsten carbide has been adjusted to 0.15 ⁇ m.
  • Tungsten carbide has sufficient hardness for it not to be abraded by the hard particles contained in the fuel oil of a diesel engine, and is able to limit the abrasion wear that is caused by these hard particles in the fuel oil, and also provide improved seizure resistance.
  • the mean particle diameter of the tungsten carbide exceeds 0.45 ⁇ m the hardness and brittleness of the tungsten carbide make it easy for cracks to appear in the thermal spray coating 3 , and the workability thereof is inferior compared to multi-layer chrome plating.
  • the mean particle diameter of the tungsten carbide is less than 0.15 ⁇ m, there is a possibility that the abrasion resistance will deteriorate. Accordingly, it is preferable for the mean particle diameter of the tungsten carbide to be within a range of not less than 0.15 ⁇ m and not more than 0.45 ⁇ m.
  • the thermal spray coating 3 it is also preferable for the thermal spray coating 3 to contain nickel (Ni) within a range of not less than 7.0 wt % and not more than 18.5 wt % as a metallic binder phase. Because the metal strength of nickel is not too high, and nickel makes it easier for microscopic drop-offs in the coating to occur, it is possible to obtain improved seizure resistance. However, if the nickel exceeds 18.5 wt %, conversely, it becomes more difficult for drop-offs to be appropriately generated in the coating, and there is inferior seizure resistance compared to multi-layer chrome plating. On the other hand, if the nickel is less than 7.0 wt %, its effectiveness as a binder is diminished.
  • the thermal spray coating 3 it is preferable for the thermal spray coating 3 to have a composition that contains, in particular, 7.0 wt % of nickel as a metallic binder phase, and 20 wt % of chromium carbide as a hard phase, and in which the remainder is made up of tungsten carbide as a hard phase and inevitable impurities.
  • the thermal spray coating 3 it is preferable for the thermal spray coating 3 to have a composition that contains, in particular, 12.5 wt % of nickel as a metallic binder phase, and 37.5 wt % of chromium carbide as a hard phase, and in which the remainder is made up of tungsten carbide as a hard phase and inevitable impurities.
  • the thermal spray coating 3 it is preferable for the thermal spray coating 3 to have a composition that contains, in particular, 18.5 wt % of nickel as a metallic binder phase, and 17.5 wt % of chromium carbide as a hard phase, and in which the remainder is made up of tungsten carbide as a hard phase and inevitable impurities.
  • the porosity of the thermal spray coating 3 is 3% or less. If the porosity exceeds 3%, then a number of large air holes are formed so that the oil film forming ability deteriorates, and the lifespan of the coating is shortened.
  • the porosity referred to here is determined by measuring the coating cross-section of the thermal spray coating 3 after mirror polishing, or by measuring the cross-section of the sintered body using an image analyzing method. Specifically, in the present embodiment, Image-Pro (manufactured by Media Cybernetics) is used for the image analysis software.
  • the thermal spray method also has an effect on the porosity of the thermal spray coating 3 . Accordingly, when forming the thermal spray coating 3 , it is preferable to employ a high-speed frame spraying method in order to form a precise and smooth coating with low porosity.
  • a HVOF (High Velocity Oxy Fuel) thermal spray method or a HVAF (High Velocity Air Fuel) thermal spray method or the like may be considered for the high-speed frame spraying method. In the present embodiment, a HVOF thermal spray method is used.
  • the piston ring 1 of the above-described present embodiment is provided with the thermal spray coating 3 that has excellent oil film forming capabilities, and has sufficient hardness for it not to be abraded by the hard particles contained in the fuel oil of a diesel engine, and that makes it easy for microscopic drop-offs in the coating to occur.
  • the thermal spray coating 3 has low porosity and is a highly precise, smooth coating, and, additionally, has a high proportion of hard particles (WC, Cr 3 C 2 ), and has an appropriate quantity of drop-offs due to the fact that the strength of the binder metal (Ni) is not too great, by reducing the mean particle diameter of the hard particles (WC), it is possible to obtain a thermal spray coating that has superior seizure resistance compared to multi-layer chrome plating and has the equivalent or better workability than multi-layer chrome plating.
  • test specimens were prepared using high-speed frame thermal spray coating.
  • the spray conditions during the preparation of these test specimens were as follows.
  • the seizure resistance evaluation test was performed in the manner shown in FIG. 2 .
  • the length of the sintering time was measured and the seizure resistance was subsequently evaluated.
  • the seizure resistance evaluation test was performed as follows. As shown in FIG. 2 , the thermal spray coating side of a test specimen in the form of a ring material 11 was pressed under a predetermined load against a liner material 10 , and the liner material 10 was then rotated. Initially, lubricating oil was supplied between the ring material 11 and the liner material 10 , however, once the ring material 11 had reached a predetermined load via a plurality of stages, the supply of lubricating oil was stopped and the sintering time caused by the resulting absence of oil was measured.
  • the workability evaluation test was conducted by performing grinding processing to a predetermined depth on a prepared thermal spray coating. The crack length per unit area generated by this processing was then measured, and the workability was subsequently evaluated.
  • FIGS. 3A through 3C and FIGS. 4A and 4B show the state of a worked surface of a test specimen after the workability evaluation test according to an embodiment of the present invention.
  • the cracks generated by this processing are shown by the arrows in FIGS. 3A through 3C and FIGS. 4A and 4B .
  • FIGS. 3A through 3C and FIGS. 4A and 4B show the state of the worked surface of each test specimen when the cutting depth of each cut was set at 0.002 mm ( FIGS. 3A through 3C and FIGS. 4A and 4B ).
  • FIG. 5 is a graph showing a relationship between the mean particle diameter of the tungsten carbide, the crack length, and the sintering time according to an embodiment of the present invention.
  • FIG. 6 is a graph showing a relationship between the mean particle diameter of the tungsten carbide, the crack length, and the Vickers hardness according to an embodiment of the present invention. Note that the respective target values shown in the drawing represent those of a multi-layer chrome plating which serves as a conventional protective film.
  • the seizure resistance was better than that of multi-lab chrome plating in each of the test specimen U-41 in which the mean particle diameter of the tungsten carbide (WC) was 0.1 ⁇ m, the test specimen U-11 in which it was 0.15 ⁇ m, the test specimen U-31 in which it was 0.30 ⁇ m, the test specimen unit U-42 in which it was 0.45 ⁇ m, and the test specimen U-1 in which it was 0.60 ⁇ m.
  • the mean particle diameter of the tungsten carbide (WC) was 0.1 ⁇ m
  • the test specimen U-11 in which it was 0.15 ⁇ m
  • the test specimen U-31 in which it was 0.30 ⁇ m
  • the test specimen unit U-42 in which it was 0.45 ⁇ m
  • the test specimen U-1 in which it was 0.60 ⁇ m.
  • FIG. 7 is a graph showing a relationship between the amount of nickel binder, the sintering time, and the hardness according to an embodiment of the present invention.
  • FIG. 8 is a graph showing a relationship between the amount of nickel binder and the crack length according to an embodiment of the present invention. Note that, in the same way as described above, the respective target values shown in the drawing represent those of multi-layer chrome plating which serves as a conventional protective film.
  • FIG. 9 is a graph showing a relationship between the amount of nickel binder, the crack length, and the sintering time according to an embodiment of the present invention.
  • FIG. 10 is a graph showing a relationship between the amount of nickel binder, the crack length, and the Vickers hardness according to an embodiment of the present invention. Note that, in the same way as described above, the respective target values shown in the drawing represent those of multi-layer chrome plating which serves as a conventional protective film.
  • a piston ring 1 that is provided with this type of thermal spray coating 3 has superior seizure resistance compared to multi-layer chrome plating, and has equivalent or superior workability compared to multi-layer chrome plating.
  • the present invention can be applied not only to piston rings in diesel engines, but also to piston rings in other types of internal combustion engine.
  • the present invention relates to a piston ring and can be used, in particular, on a piston ring that is provided with a thermal spray coating.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
US14/258,411 2011-10-25 2014-04-22 Piston ring Abandoned US20140225330A1 (en)

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US15/178,823 US10689743B2 (en) 2011-10-25 2016-06-10 Piston ring

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JP2011233998 2011-10-25
PCT/JP2012/077597 WO2013062045A1 (ja) 2011-10-25 2012-10-25 ピストンリング

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EP (1) EP2772562B1 (de)
JP (1) JP5948216B2 (de)
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CN (1) CN103857823B (de)
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Cited By (6)

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US20150330507A1 (en) * 2012-12-11 2015-11-19 Kabushiki Kaisha Riken Piston ring sprayed coating, piston ring, and method for producing piston ring sprayed coating
US20190024795A1 (en) * 2016-02-12 2019-01-24 Oerlikon Surface Solutions Ag, Pfäffikon Tribological system of an internal combustion engine with a coating
CN110608213A (zh) * 2019-10-17 2019-12-24 江苏徐工工程机械研究院有限公司 动力缸和工程车辆
US20210404413A1 (en) * 2018-11-02 2021-12-30 Nissan Motor Co., Ltd. Thermally sprayed coating for sliding member and sliding device provided with said thermally sprayed coating for sliding member
US11255432B2 (en) * 2019-04-05 2022-02-22 Raytheon Technologies Corporation Low friction, wear resistant piston seal
US11746405B2 (en) * 2018-11-02 2023-09-05 Nissan Motor Co., Ltd. Thermal sprayed coating for sliding member, and sliding device provided with thermal sprayed coating for sliding member

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* Cited by examiner, † Cited by third party
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US10458505B2 (en) 2015-03-13 2019-10-29 Komatsu Ltd. Cylinder rod
KR102177464B1 (ko) * 2016-02-19 2020-11-11 제이에프이 스틸 가부시키가이샤 서멧 분말, 보호 피막 피복 부재 및 그 제조 방법과 전기 도금욕중 롤 및 그 제조 방법
CN109136813A (zh) * 2018-02-28 2019-01-04 德州章源喷涂技术有限公司 一种矿用液压支架立柱表面处理方法
CN112135919A (zh) * 2018-05-21 2020-12-25 帝伯爱尔株式会社 气缸套及其制造方法
JP7162128B2 (ja) * 2018-10-17 2022-10-27 キョウセラ センコ インダストリアル ツールズ インク． ドライバアセンブリ

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071489A (en) * 1958-05-28 1963-01-01 Union Carbide Corp Process of flame spraying a tungsten carbide-chromium carbide-nickel coating, and article produced thereby
US4515763A (en) * 1981-07-15 1985-05-07 Board Of Trustees Of Leland Stanford Jr. Univeristy High specific surface area carbides and nitrides
JPH0586452A (ja) * 1991-09-27 1993-04-06 Kobe Steel Ltd 溶射用粉末材料
US6482534B2 (en) * 2000-02-17 2002-11-19 Fujimi Incorporated Spray powder, thermal spraying process using it, and sprayed coating
US6887585B2 (en) * 2000-09-21 2005-05-03 Federal-Mogul Burscheid Gmbh Thermally applied coating of mechanically alloyed powders for piston rings
US20070099028A1 (en) * 2005-11-02 2007-05-03 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Hard films and sputtering targets for the deposition thereof
US20090022994A1 (en) * 2004-12-27 2009-01-22 Hossein Aminian Composite Powder Products for Hardmetals
US20100297432A1 (en) * 2009-05-22 2010-11-25 Sherman Andrew J Article and method of manufacturing related to nanocomposite overlays
CN102586713A (zh) * 2012-03-11 2012-07-18 赣州章源钨业新材料有限公司 一种新型WC-Cr3C2-Ni热喷涂粉末及其制备工艺

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080311306A1 (en) * 1997-08-22 2008-12-18 Inframat Corporation Superfine ceramic thermal spray feedstock comprising ceramic oxide grain growth inhibitor and methods of making
DE10061750B4 (de) * 2000-12-12 2004-10-21 Federal-Mogul Burscheid Gmbh Wolframhaltige Verschleißschutzschicht für Kolbenringe
DE10061749C2 (de) * 2000-12-12 2003-08-07 Federal Mogul Burscheid Gmbh Kolbenring für Brennkraftmaschinen
JP3952252B2 (ja) 2001-01-25 2007-08-01 株式会社フジミインコーポレーテッド 溶射用粉末およびそれを用いた高速フレーム溶射方法
JPWO2004035852A1 (ja) * 2002-10-15 2006-02-16 株式会社リケン ピストンリング及びそれに用いる溶射皮膜、並びに製造方法
JP2005155711A (ja) 2003-11-21 2005-06-16 Riken Corp 溶射ピストンリング及びその製造方法
CN1997474A (zh) * 2004-05-28 2007-07-11 普莱克斯S·T·技术有限公司 耐磨合金粉末及涂层
US20070099027A1 (en) * 2005-10-28 2007-05-03 Anand Krishnamurthy Wear resistant coatings
PT2118534T (pt) * 2007-01-09 2017-05-30 Federal Mogul Burscheid Gmbh Anel de segmento com estrutura multicamadas e processo para a sua produção
DE102007019510B3 (de) * 2007-04-25 2008-09-04 Man Diesel A/S Zu einer Gleitpaarung gehörendes Maschinenteil sowie Verfahren zu dessen Herstellung
DE102009016650B3 (de) * 2009-04-07 2010-07-29 Federal-Mogul Burscheid Gmbh Gleitelement mit einstellbaren Eigenschaften
CN101644206A (zh) * 2009-07-21 2010-02-10 南京飞燕活塞环股份有限公司 一种内燃机活塞环
JP5371102B2 (ja) * 2009-08-10 2013-12-18 地方独立行政法人 大阪市立工業研究所 超硬合金の改質方法および該方法によって改質された超硬合金

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071489A (en) * 1958-05-28 1963-01-01 Union Carbide Corp Process of flame spraying a tungsten carbide-chromium carbide-nickel coating, and article produced thereby
US4515763A (en) * 1981-07-15 1985-05-07 Board Of Trustees Of Leland Stanford Jr. Univeristy High specific surface area carbides and nitrides
JPH0586452A (ja) * 1991-09-27 1993-04-06 Kobe Steel Ltd 溶射用粉末材料
US6482534B2 (en) * 2000-02-17 2002-11-19 Fujimi Incorporated Spray powder, thermal spraying process using it, and sprayed coating
US6887585B2 (en) * 2000-09-21 2005-05-03 Federal-Mogul Burscheid Gmbh Thermally applied coating of mechanically alloyed powders for piston rings
US20090022994A1 (en) * 2004-12-27 2009-01-22 Hossein Aminian Composite Powder Products for Hardmetals
US20070099028A1 (en) * 2005-11-02 2007-05-03 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Hard films and sputtering targets for the deposition thereof
US20100297432A1 (en) * 2009-05-22 2010-11-25 Sherman Andrew J Article and method of manufacturing related to nanocomposite overlays
CN102586713A (zh) * 2012-03-11 2012-07-18 赣州章源钨业新材料有限公司 一种新型WC-Cr3C2-Ni热喷涂粉末及其制备工艺

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150330507A1 (en) * 2012-12-11 2015-11-19 Kabushiki Kaisha Riken Piston ring sprayed coating, piston ring, and method for producing piston ring sprayed coating
US9664281B2 (en) * 2012-12-11 2017-05-30 Kabushiki Kaisha Riken Piston ring sprayed coating, piston ring, and method for producing piston ring sprayed coating
US20190024795A1 (en) * 2016-02-12 2019-01-24 Oerlikon Surface Solutions Ag, Pfäffikon Tribological system of an internal combustion engine with a coating
US10677355B2 (en) * 2016-02-12 2020-06-09 Oerlikon Surface Solutions Ag, Pfäffikon Tribological system of an internal combustion engine with a coating
US20210404413A1 (en) * 2018-11-02 2021-12-30 Nissan Motor Co., Ltd. Thermally sprayed coating for sliding member and sliding device provided with said thermally sprayed coating for sliding member
US11585289B2 (en) * 2018-11-02 2023-02-21 Nissan Motor Co., Ltd. Thermally sprayed coating for sliding member and sliding device provided with said thermally sprayed coating for sliding member
US11746405B2 (en) * 2018-11-02 2023-09-05 Nissan Motor Co., Ltd. Thermal sprayed coating for sliding member, and sliding device provided with thermal sprayed coating for sliding member
US11255432B2 (en) * 2019-04-05 2022-02-22 Raytheon Technologies Corporation Low friction, wear resistant piston seal
CN110608213A (zh) * 2019-10-17 2019-12-24 江苏徐工工程机械研究院有限公司 动力缸和工程车辆

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US10689743B2 (en) 2020-06-23
CN103857823B (zh) 2015-09-30
US20160281202A1 (en) 2016-09-29
EP2772562A4 (de) 2015-04-08
JP5948216B2 (ja) 2016-07-06
WO2013062045A1 (ja) 2013-05-02
DK2772562T3 (en) 2018-08-13
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EP2772562A1 (de) 2014-09-03
CN103857823A (zh) 2014-06-11

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