WO2003062680A1 - Segment de piston de pulverisation - Google Patents
Segment de piston de pulverisation Download PDFInfo
- Publication number
- WO2003062680A1 WO2003062680A1 PCT/JP2003/000340 JP0300340W WO03062680A1 WO 2003062680 A1 WO2003062680 A1 WO 2003062680A1 JP 0300340 W JP0300340 W JP 0300340W WO 03062680 A1 WO03062680 A1 WO 03062680A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mass
- sprayed
- coating
- thermal
- piston ring
- Prior art date
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 14
- 239000010439 graphite Substances 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 5
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 29
- 238000000576 coating method Methods 0.000 claims description 29
- 238000007751 thermal spraying Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 7
- FFGPTBGBLSHEPO-UHFFFAOYSA-N carbamazepine Chemical group C1=CC2=CC=CC=C2N(C(=O)N)C2=CC=CC=C21 FFGPTBGBLSHEPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052718 tin Inorganic materials 0.000 claims description 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052745 lead Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 239000010974 bronze Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 claims 1
- 241000894007 species Species 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 abstract description 13
- 239000000843 powder Substances 0.000 description 27
- 239000010949 copper Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 19
- 239000011812 mixed powder Substances 0.000 description 14
- 238000007750 plasma spraying Methods 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011651 chromium Substances 0.000 description 6
- 229910000765 intermetallic Inorganic materials 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000007747 plating Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 229910018487 Ni—Cr Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 239000011135 tin Substances 0.000 description 3
- 229910017755 Cu-Sn Inorganic materials 0.000 description 2
- 229910017927 Cu—Sn Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910017532 Cu-Be Inorganic materials 0.000 description 1
- 229910020888 Sn-Cu Inorganic materials 0.000 description 1
- 229910019204 Sn—Cu Inorganic materials 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002335 surface treatment layer Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C23C4/04—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
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S384/00—Bearings
- Y10S384/90—Cooling or heating
- Y10S384/907—Bearing material or solid lubricant
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S384/00—Bearings
- Y10S384/90—Cooling or heating
- Y10S384/913—Metallic compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12063—Nonparticulate metal component
- Y10T428/12139—Nonmetal particles in particulate component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12486—Laterally noncoextensive components [e.g., embedded, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
- Y10T428/12917—Next to Fe-base component
- Y10T428/12924—Fe-base has 0.01-1.7% carbon [i.e., steel]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12951—Fe-base component
- Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/21—Circular sheet or circular blank
- Y10T428/215—Seal, gasket, or packing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/21—Circular sheet or circular blank
- Y10T428/218—Aperture containing
Definitions
- the present invention relates to a piston ring used for an internal combustion engine, a compressor, or the like, and more particularly, to a sprayed piston ring having a sprayed coating formed on at least an outer peripheral sliding surface.
- An object of the present invention is to eliminate the disadvantages of a sprayed coating in Japanese Patent Application Laid-Open No. H11-80921, Table 2000-507679, to have excellent initial conformability, and to have thermal resistance to seizure and abrasion.
- An object of the present invention is to provide a sprayed piston ring having a coating formed thereon.
- the thermal sprayed stone ring of the present invention contains 2 to 40% by mass of Sn, 5 to 50% by mass of graphite, and has a thermal spray coating substantially composed of Cu on at least the outer peripheral sliding surface. It is characterized by.
- the thermal spray coating consists essentially of Cu, Sn and graphite. Graphite contained in the sprayed coating is dispersed in the sprayed coating to enhance the self-lubricating property of the coating, so that the copper-based metal is abraded by the mating shaft to form a familiar surface. Prevent attrition.
- the content of graphite should be 5 to 50% by mass.
- the preferred graphite content is 5 to 20% by weight.
- Sn contained in the thermal spray coating does not form or hardly forms a hard material such as an oxide in plasma spraying.
- the phrase "hard material such as oxide is not substantially formed” means that pores and the like generated by thermal spraying are observed in the micrograph observation of FIG. 4 described later, but no hard material is observed.
- Sn is alloyed with Cu in advance and sprayed, Sn re-dissolves in the copper alloy and hardens the copper alloy appropriately. That is, in the raw material Cu-Sn alloy, a Cu-Sn-based intermetallic compound with poor initial compatibility may be formed, but the intermetallic compound is re-dissolved during thermal spraying, Alternatively, it can be a substantially solid-dissolved tissue.
- the “substantially solid solution state” refers to a state in which pores and the like generated by thermal spraying are observed, but no intermetallic compound is observed in the microscopic photograph observation of FIG. 4 described later. Since the intermetallic compound is hard, it is harmful to the initial adaptability, but the Cu phase in which Sn is dissolved is excellent in the initial adaptability. On the other hand, when melting Sn powder and Cu powder, a structure in which Cu phase and Sn phase are dispersed may be obtained depending on the spraying conditions. That is, although the composition of the present invention is in the Sn-Cu intermetallic compound generation range shown in the equilibrium diagram, when sprayed,
- the Sn content is set to 2 to 40% by mass.
- the preferred Sn content is 5 to 25% by mass.
- P can be added to the above-mentioned Cu-C-Sn component sprayed material.
- P improves the flowability of the Cu alloy and densifies the sprayed structure.
- the P content exceeds 1.0% by mass, the alloy is hardened, which is not preferable.
- the preferred P content is 0.03 to 0.5% by mass.
- Pb forms a soft Pb phase or forms a Pb Sn eutectic structure, it has a favorable effect on initial compatibility, but all of these phases have a low melting point and may elute at the piston ring operating temperature. There is.
- the Pb content should be 20% by mass or less, more preferably 0.03 to 5.0% by mass.
- Be does not have the aging effect of the Cu-Be alloy and mainly strengthens solid solution.
- FIG. 1 is a schematic sectional view showing a piston ring according to one embodiment of the present invention.
- FIG. 2 is a schematic sectional view showing a piston ring according to another embodiment of the present invention.
- FIG. 3 is a schematic sectional view showing a piston ring according to another embodiment of the present invention.
- FIG. 4 is a micrograph (X100) of the metal structure of the test material on which the plasma sprayed film was formed in the example.
- FIG. 5 is a schematic sectional view showing an apparatus (plasma gun) for performing plasma spraying.
- FIG. 6 is a schematic diagram of an ultra-high pressure wear tester.
- FIG. 5 is a sectional view taken along the line AA of FIG. 6;
- FIG. 8 is a graph showing the time until the occurrence of image sticking in the wear tests of the example and the comparative example.
- FIG. 9 is a graph showing the wear amount of the test piece when seizure occurs in the wear tests of the example and the comparative example.
- FIG. 1 and 2 are schematic sectional views showing a piston ring according to an embodiment of the present invention.
- a thermal spray coating 3 is formed on a flat outer peripheral sliding surface or an outer peripheral sliding surface groove of a known piston ring base material 2 made of iron, stainless steel, or the like. If necessary, the thermal spray coating 3 may be formed on the upper and lower surfaces.
- FIG. 3 is a schematic cross-sectional view showing a piston ring according to another embodiment of the present invention, in which another coating such as a hard chromium plating coating or a hard spray coating for wear resistance is formed on the base of the thermal spray coating 3. Is formed.
- the thermal spray coating 3 can be formed by ordinary arc spraying, flame spraying, high-speed flame spraying, plasma spraying, or low-pressure plasma spraying, but is preferably formed by plasma spraying from the dispersed state of graphite ( plasma spraying). Is performed using a plasma gun 5 shown in Fig. 5.
- the plasma gun 5 is formed of an annular anode 6 made of copper or the like, a cathode 7 made of tungsten or the like, and located above the anode 6, and a power source 8.
- Anode 6 forms a nozzle for ejecting plasma gas
- a cavity (not shown) is formed inside anode 6 and cathode 7, and has a cooling function.
- the piston ring base material 2 is set at a position 20 to 300 band away from the tip of the anode 6.
- an inert gas such as Ar is introduced into the nozzle.
- the inert gas is heated by the arc discharge 9 and turned into plasma.
- the plasma gas expands and is ejected from the anode 6 at a high temperature and a high speed to form a plasma jet stream 10.
- the film is blended to have the desired composition.
- the average particle size of 5 to 125 xm raw material powder 11 is introduced.
- the raw material may be a braalloy powder, a single powder, or a combination thereof.
- copper may be electrolessly applied to the graphite powder.
- the supply port of the powder 11 may be provided in the anode 6 as shown in FIG. 5, or may be provided immediately below the anode 6.
- the powder 11 is melted and accelerated in the plasma jet stream 10 and collides with the base material 2.
- the colliding powder 11 is instantaneously flattened and rapidly cooled to the base metal temperature to form a thermal spray coating 3.
- the surface of the base material 2 is preferable to form in advance the surface of the base material 2 with unevenness of about 10 to 20 m by shot blasting or the like.
- the projections cause local melting and are easily alloyed.
- the anchoring effect due to the solidification shrinkage stress of the molten particles is generated, and the film is formed. Adhesive strength becomes stronger.
- the base material 2 is preheated immediately before thermal spraying to a high temperature of 400 to 550 ° C, and the surface of the base material 2 is cleaned by a transfer arc, the surface is activated. An interdiffusion layer is formed between the coating 3 and the base material 2 and the thermal spray coating 3 are firmly joined.
- the thickness of the thermal spray coating 3 is preferably from 50 to 500 x m, more preferably from 100 to 300 / m.
- the equipment and test conditions of the ultra-high pressure wear tester used in this test are as follows.
- the test apparatus is schematically shown in Fig. 6 and Fig. 7, which is a sectional view taken along the line AA of Fig. 6, and is detachably mounted on the stay holder 12.
- Lubricating oil is injected through the lubrication port 14 from the back side at the center of the disc 13 (counterpart), which has been polished to a diameter of 80 mm and a thickness of 10 mm.
- a pressing force P is applied to the disk 13 by a hydraulic device (not shown) at a predetermined pressure toward the right in the figure.
- a disk 15 is provided opposite the disk 13 and is rotated at a predetermined speed by a drive device (not shown).
- a pin-shaped projection 21 is slidably mounted on the disk 13 on the test piece 16 with a 5 mm square end face having a surface treatment layer formed on the test piece 16 as a sliding surface.
- the rotor 15 is rotated by applying a predetermined pressing force P to the stay holder 12 so that the disk 13 comes into contact with the pin-shaped projection 21 of the test piece 16 at a predetermined surface pressure.
- a predetermined pressing force P to the stay holder 12 so that the disk 13 comes into contact with the pin-shaped projection 21 of the test piece 16 at a predetermined surface pressure.
- the torque T generated in the holder 12 due to the friction between the test piece 16 and the counterpart disk 13 caused by the rotation of the rotor 15 is applied to the load cell 18 via the stainless steel fiber 17 and the change is measured by a dynamic strain gauge. Read at 19 and record on recorder 20. Assuming that seizure occurred when the torque T suddenly increased, the time required up to this time was used to judge the quality of seizure resistance and initial adaptation characteristics, and the amount of wear of the film by this time was used for abrasion resistance. Judge the quality of sex.
- test conditions are as follows.
- Friction speed 8m / sec
- the prepared powders are as follows.
- the mixed powder 2 Cr 3 C 2 powder 30 weight%, Mo powder 6G mass%, Ni-Cr alloy powder 10 wt% ( ⁇ : 80 wt%: 20 wt%) In addition, each of the powders was 325 mesh Was.
- a sprayed film having a thickness of about 100 m is formed on the surface of the pin-shaped projection 21 of the test piece 16 by plasma spraying.
- Thermal spraying conditions were as follows.
- Atmosphere gas A r
- Base material preheating temperature 400 ° C
- Fig. 4 shows a micrograph (X100) of the metal structure on the curved surface of the obtained test piece 16.
- the bond between the bond coat portion 22 (bottom of the photo) and the sprayed coating 4 is alloyed and diffusion bonded, and the coating 3 has very few vacancies.
- the average hardness of the sprayed coating of mixed powder 1 was 150 Hv0.05, and the black part (approximately the center in the photograph) in sprayed coating 4 is a graphite.
- a mixed powder 3 composed of 8.5 mass% of Si powder, 23 mass% of graphite powder, 68.5 mass% of A1 alloy powder, and 30 mass% of Cr 3 C 2 powder, A mixed powder 4 comprising 60% by mass of Mo powder and 10% by mass of Ni-Cr alloy powder ( ⁇ : 80% by mass,: 20% by mass) was prepared.
- a sprayed coating having a thickness of about 100 m was formed on the surface of the pin-shaped projection 21 of the test piece 16 by plasma spraying.
- the spray conditions are as follows. The hardness of the thermal spray coating of Mixed Powder 3 was 11 OHvO.05.
- Atmosphere gas A r
- Base material preheating temperature 400 ° C
- Fig. 7 shows the results of the seizure occurrence time of the test piece 16 and the disk 13, and Fig. 8 shows the amount of wear of the test piece 16 when seizure occurred. Comparative Example 2
- a mixed powder 6 comprising 1 G mass% of C 2 powder, 31 mass% of Mo powder, and 10 mass% of Ni-Cr alloy powder ( ⁇ : 80 mass%,: 20 mass%) was prepared.
- a spray coating having a thickness of about 100 m was formed on the curved surface of the test piece 16 by plasma spraying using the mixed powder 6 as a pound coat and the mixed powder 5 as a top coat.
- the spray conditions were as follows.
- Atmosphere gas A r
- Base material preheating temperature 400 ° C
- Fig. 8 shows the results of the seizure time of the test piece 16 and the disk 13, and Fig. 9 shows the amount of wear of the test piece 16 when seizure occurred.
- test piece 16 of the example is superior to the test piece 16 of the comparative example in seizure resistance, wear resistance, and initial adaptability. Industrial applicability
- the biston ring of the present invention in which a coating formed by mixing Cu, Sn, and graphite at a predetermined ratio and spraying is formed on the outer peripheral sliding surface, Excellent seizure resistance, wear resistance, and initial familiarity
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Coating By Spraying Or Casting (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Compressor (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60332705T DE60332705D1 (de) | 2002-01-18 | 2003-01-17 | Kolbenring mit spritzbeschichtung |
EP03701105A EP1467129B1 (en) | 2002-01-18 | 2003-01-17 | Spraying piston ring |
JP2003562515A JP4369757B2 (ja) | 2002-01-18 | 2003-01-17 | 溶射ピストンリング |
KR1020047011076A KR100614022B1 (ko) | 2002-01-18 | 2003-01-17 | 용사 피스톤 링 |
US10/501,503 US7279227B2 (en) | 2002-01-18 | 2003-01-17 | Spraying piston ring |
BR0306972-9A BR0306972A (pt) | 2002-01-18 | 2003-01-17 | Anel de pistão revestido por borrifação térmica |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-10086 | 2002-01-18 | ||
JP2002010086 | 2002-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003062680A1 true WO2003062680A1 (fr) | 2003-07-31 |
Family
ID=27605986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/000340 WO2003062680A1 (fr) | 2002-01-18 | 2003-01-17 | Segment de piston de pulverisation |
Country Status (8)
Country | Link |
---|---|
US (1) | US7279227B2 (ja) |
EP (1) | EP1467129B1 (ja) |
JP (1) | JP4369757B2 (ja) |
KR (1) | KR100614022B1 (ja) |
CN (1) | CN100420843C (ja) |
BR (1) | BR0306972A (ja) |
DE (1) | DE60332705D1 (ja) |
WO (1) | WO2003062680A1 (ja) |
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JP2011530008A (ja) * | 2008-08-06 | 2011-12-15 | フェデラル−モーグル ブルシャイト ゲゼルシャフト ミット ベシュレンクテル ハフツング | 適合性コーティングを備える滑り部品及びその製造方法 |
JP2012046821A (ja) * | 2010-07-29 | 2012-03-08 | Nippon Piston Ring Co Ltd | ピストンリング |
JP2016102233A (ja) * | 2014-11-28 | 2016-06-02 | 日本ピストンリング株式会社 | ピストンリング及びその製造方法 |
JP2019218606A (ja) * | 2018-06-20 | 2019-12-26 | 大阪富士工業株式会社 | 自己潤滑複合材 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT413034B (de) * | 2003-10-08 | 2005-10-15 | Miba Gleitlager Gmbh | Legierung, insbesondere für eine gleitschicht |
US20070023402A1 (en) * | 2005-07-26 | 2007-02-01 | United Technologies Corporation | Methods for repairing workpieces using microplasma spray coating |
US20060091117A1 (en) * | 2004-11-04 | 2006-05-04 | United Technologies Corporation | Plasma spray apparatus |
US20090174150A1 (en) * | 2008-01-08 | 2009-07-09 | Thomas Smith | Lateral side protection of a piston ring with a thermally sprayed coating |
DE102009015008B3 (de) * | 2009-03-26 | 2010-12-02 | Federal-Mogul Burscheid Gmbh | Kolbenringe und Zylinderlaufbuchsen |
BR112012023574B1 (pt) * | 2010-03-19 | 2021-02-17 | Honda Motor Co., Ltd. | pistão para motor de combustão interna |
CN102261291A (zh) * | 2010-05-24 | 2011-11-30 | 陈殿宽 | 一种活塞及其生产工艺 |
DE102011106564A1 (de) * | 2011-07-05 | 2013-01-10 | Mahle International Gmbh | Verfahren zur Herstellung einer Zylinderlauffläche sowie Zylinderlaufbuchse |
BR102013000809A2 (pt) * | 2013-01-11 | 2015-06-02 | Mahle Metal Leve Sa | Anel de pistão para uso em motores de combustão interna e processo de fabricação de anel de pistão |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998025017A1 (en) * | 1996-12-05 | 1998-06-11 | Man B & W Diesel A/S | A cylinder element, such as a cylinder liner, a piston, a piston skirt or a piston ring, in an internal combustion engine of the diesel type, and a piston ring for such an engine |
JPH11247712A (ja) * | 1998-02-27 | 1999-09-14 | Aisin Seiki Co Ltd | エンジン用ピストン |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1654509A (en) * | 1924-08-30 | 1927-12-27 | Bound Brook Oil Less Bearing | Antifriction bearing and method of forming the same |
JPS48365B1 (ja) * | 1970-01-26 | 1973-01-08 | ||
JPS533446B2 (ja) * | 1973-11-01 | 1978-02-07 | ||
US4261745A (en) * | 1979-02-09 | 1981-04-14 | Toyo Kohan Co., Ltd. | Method for preparing a composite metal sintered article |
JPS59177341A (ja) * | 1983-03-25 | 1984-10-08 | Daido Metal Kogyo Kk | 複層の黒鉛含有燐青銅軸受材料の製造方法 |
DE3525068C1 (de) * | 1985-07-13 | 1986-05-28 | Kolbenschmidt AG, 7107 Neckarsulm | Verfahren zur Beurteilung des Haftens der aus Kunststoff bestehenden Gleitschicht von Mehrschicht-Gleitlagerwerkstoffen |
CN86101804B (zh) * | 1986-03-22 | 1988-11-09 | 天津市交通局科学技术研究所 | 活塞环材料 |
JPH0684528B2 (ja) * | 1988-09-06 | 1994-10-26 | 大同メタル工業株式会社 | 黒鉛含有鉛青銅複層摺動材料及びその製造方法 |
JPH0762191B2 (ja) * | 1990-11-29 | 1995-07-05 | 大同メタル工業株式会社 | 焼結銅合金層を有する摺動部材 |
JP3013946B2 (ja) * | 1992-02-18 | 2000-02-28 | 大同メタル工業株式会社 | 耐焼付性に優れた多層複合摺動材料 |
CN1080326A (zh) * | 1992-06-18 | 1994-01-05 | 康淑丽 | 改善汽缸润滑与密封的合金及装置 |
US5194304A (en) * | 1992-07-07 | 1993-03-16 | Ford Motor Company | Thermally spraying metal/solid libricant composites using wire feedstock |
US5302450A (en) * | 1993-07-06 | 1994-04-12 | Ford Motor Company | Metal encapsulated solid lubricant coating system |
US5332422A (en) * | 1993-07-06 | 1994-07-26 | Ford Motor Company | Solid lubricant and hardenable steel coating system |
JP2756407B2 (ja) * | 1993-12-28 | 1998-05-25 | 大同メタル工業株式会社 | 耐腐食性と耐摩耗性に優れた摺動材料およびその製造方法 |
JP3568061B2 (ja) * | 1995-05-17 | 2004-09-22 | 大豊工業株式会社 | 斜板式コンプレッサーの斜板及び斜板とシューとの組合わせ |
CN1225160A (zh) * | 1996-10-28 | 1999-08-04 | 曼B与W狄赛尔公司 | 柴油内燃机的活塞环和/或活塞以及柴油机的磨合方法 |
DK172547B1 (da) | 1996-10-28 | 1998-12-21 | Man B & W Diesel As | Stempelringe og/eller stempel i en forbrændingsmotor af dieseltypen samt fremgangsmåde til indkøring af en dieselmotor |
BR9714775A (pt) | 1996-12-03 | 2001-10-30 | Elliott Energy Systems Inc | Sistema elétrico para turbina/alternador sobreum eixo comum |
JP4023872B2 (ja) * | 1997-06-26 | 2007-12-19 | 大豊工業株式会社 | 斜板式コンプレッサー用斜板 |
DE19828663A1 (de) * | 1997-06-27 | 1999-02-04 | Aisin Seiki | Reibbelagmaterial |
JPH1180921A (ja) | 1997-07-09 | 1999-03-26 | Nippon Piston Ring Co Ltd | 摺動部材のなじみ性溶射被膜層 |
JPH11241153A (ja) * | 1998-02-27 | 1999-09-07 | Nippon Piston Ring Co Ltd | 摺動部材のなじみ性溶射被膜層 |
JP3251562B2 (ja) * | 1999-07-09 | 2002-01-28 | 大豊工業株式会社 | 斜板式コンプレッサーの斜板 |
ATE244776T1 (de) * | 1999-10-29 | 2003-07-15 | Man B & W Diesel As | Verfahren zur herstellung von mit wenigstens einer gleitfläche versehenen maschinenteilen |
JP2001132628A (ja) * | 1999-11-04 | 2001-05-18 | Sanden Corp | 斜板式圧縮機 |
JP2001335812A (ja) * | 2000-03-24 | 2001-12-04 | Senju Metal Ind Co Ltd | 鉛フリー平軸受およびその製造方法 |
DE10017285B4 (de) * | 2000-04-06 | 2005-06-09 | Daimlerchrysler Ag | Synchronisierring und Verfahren zum Beschichten des Gleitbereiches eines Synchronisierrings |
KR100432948B1 (ko) * | 2000-07-14 | 2004-05-28 | 가부시키가이샤 도요다 지도숏키 | 편측경사판식 압축기 |
JP2002295473A (ja) * | 2001-03-28 | 2002-10-09 | Senju Metal Ind Co Ltd | 鉛フリージャーナル軸受 |
KR100391307B1 (ko) * | 2001-06-04 | 2003-07-16 | 한라공조주식회사 | 고체 윤활 피막 형성방법 |
EP1434665B1 (en) * | 2001-10-08 | 2008-09-10 | Federal-Mogul Corporation | Lead-free bearing |
JP3861771B2 (ja) * | 2002-08-23 | 2006-12-20 | 千住金属工業株式会社 | 平軸受およびその製造方法 |
-
2003
- 2003-01-17 DE DE60332705T patent/DE60332705D1/de not_active Expired - Lifetime
- 2003-01-17 EP EP03701105A patent/EP1467129B1/en not_active Expired - Lifetime
- 2003-01-17 JP JP2003562515A patent/JP4369757B2/ja not_active Expired - Lifetime
- 2003-01-17 US US10/501,503 patent/US7279227B2/en not_active Expired - Lifetime
- 2003-01-17 BR BR0306972-9A patent/BR0306972A/pt active Search and Examination
- 2003-01-17 KR KR1020047011076A patent/KR100614022B1/ko active IP Right Grant
- 2003-01-17 CN CNB038023938A patent/CN100420843C/zh not_active Expired - Fee Related
- 2003-01-17 WO PCT/JP2003/000340 patent/WO2003062680A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998025017A1 (en) * | 1996-12-05 | 1998-06-11 | Man B & W Diesel A/S | A cylinder element, such as a cylinder liner, a piston, a piston skirt or a piston ring, in an internal combustion engine of the diesel type, and a piston ring for such an engine |
JPH11247712A (ja) * | 1998-02-27 | 1999-09-14 | Aisin Seiki Co Ltd | エンジン用ピストン |
Non-Patent Citations (1)
Title |
---|
See also references of EP1467129A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011530008A (ja) * | 2008-08-06 | 2011-12-15 | フェデラル−モーグル ブルシャイト ゲゼルシャフト ミット ベシュレンクテル ハフツング | 適合性コーティングを備える滑り部品及びその製造方法 |
JP2012046821A (ja) * | 2010-07-29 | 2012-03-08 | Nippon Piston Ring Co Ltd | ピストンリング |
JP2016102233A (ja) * | 2014-11-28 | 2016-06-02 | 日本ピストンリング株式会社 | ピストンリング及びその製造方法 |
JP2019218606A (ja) * | 2018-06-20 | 2019-12-26 | 大阪富士工業株式会社 | 自己潤滑複合材 |
JP7297279B2 (ja) | 2018-06-20 | 2023-06-26 | 大阪富士工業株式会社 | 肉盛層、肉盛層を有する機械部品、及び肉盛層の形成方法 |
Also Published As
Publication number | Publication date |
---|---|
JP4369757B2 (ja) | 2009-11-25 |
EP1467129A1 (en) | 2004-10-13 |
EP1467129A4 (en) | 2008-03-26 |
BR0306972A (pt) | 2004-11-09 |
US7279227B2 (en) | 2007-10-09 |
DE60332705D1 (de) | 2010-07-08 |
KR20040089111A (ko) | 2004-10-20 |
JPWO2003062680A1 (ja) | 2005-05-26 |
EP1467129B1 (en) | 2010-05-26 |
US20050069724A1 (en) | 2005-03-31 |
CN1617989A (zh) | 2005-05-18 |
CN100420843C (zh) | 2008-09-24 |
KR100614022B1 (ko) | 2006-08-22 |
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