WO2002052179A1 - Segment de piston et procede de production correspondant - Google Patents
Segment de piston et procede de production correspondant Download PDFInfo
- Publication number
- WO2002052179A1 WO2002052179A1 PCT/JP2001/011278 JP0111278W WO02052179A1 WO 2002052179 A1 WO2002052179 A1 WO 2002052179A1 JP 0111278 W JP0111278 W JP 0111278W WO 02052179 A1 WO02052179 A1 WO 02052179A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston ring
- rotation speed
- evaporation source
- coating
- ring
- Prior art date
Links
Classifications
-
- 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
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/50—Substrate holders
- C23C14/505—Substrate holders for rotation of the substrates
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/54—Controlling or regulating the coating process
- C23C14/542—Controlling the film thickness or evaporation rate
-
- 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
- F16J9/12—Details
- F16J9/14—Joint-closures
Definitions
- the present invention relates to a piston ring for an internal combustion engine, and more particularly to a piston ring for an internal combustion engine having an improved outer peripheral surface film and thickness, and a method for manufacturing the same.
- a hard coating with excellent seizure resistance and abrasion resistance for example, a coating of chromium nitride and titanium nitride, is applied to the outer periphery by ion plating. A piston ring coated on the surface is used.
- the decrease in sealing performance due to the increase in the opening size increases the amount of blow-by gas through which the combustion gas blows toward the oil pan, which promotes oil deterioration.
- the lubricating oil leaks to the combustion chamber and oil consumption
- environmental problems such as an increase in sulfur-based components in the exhaust gas occur.
- the hard coating disappears due to abrasion and the underlying steel material is exposed, the risk of seizure of the engine increases.
- Japanese Patent Publication No. 2000-1208666 discloses that the thickness of the piston ring near the abutment in the radial direction of the piston ring is about 20 to 30% of the thickness of other parts. It has been proposed that by reducing the thickness, the surface pressure due to the self-tension at the end of the abutment is reduced to maintain the sealing performance and prevent abrasion of the abutment.
- the piston ring deforms into a dish-like shape during the pressure during explosion combustion and when the exhaust brake is activated, causing the piston groove to wear. Cool When the ring groove of the piston wears, the dish-like deformation of the piston ring further increases, and the repetitive stress causes the piston ring to break due to fatigue at a position where the stress is concentrated on the opposite side of the joint. Hard coatings have poor toughness and tend to crack due to stress concentration. This tendency is particularly remarkable when the thickness of the hard coating is increased.
- the piston ring slides on the inner peripheral wall of the cylinder. There was a problem that the coating was peeled off due to fatigue due to the repeated frictional force generated by the movement.
- the shape of the piston ring changes when the structure of the material changes.
- the deformation is in the direction in which the curvature of the free shape of the biston ring joint increases, That is, there is a tendency that the diameter tends to change in the direction of decreasing.
- the film is formed at a temperature of about 500 ° C. or lower, which is lower than the tempering temperature.
- the degree of deformation is significant when the piston ring steel is made of a low heat-resistant element. Therefore, when compressive residual stress is generated in the film, this tendency becomes particularly remarkable as the film thickness increases.
- the curvature of the outer peripheral portion near the abutment is approximately the same as the nominal diameter of the piston ring, if the curvature of this portion becomes large (the curvature continuously changes and the diameter is reduced), the outer peripheral portion may be hit. .
- the piston ring In the manufacturing process of the piston ring, after the ion plating film is coated, the piston ring has a specified inner diameter in order to finish the piston ring to the specified nominal outer diameter and shape, and to smooth the outer surface roughness.
- the piston ring coated with the ion plating film is liable to slip off at the outer peripheral portion near the abutment in the lapping process, and it takes time for rubbing to completely hit the outer peripheral surface, In severe cases, even if the coating on other parts is lost, there will be no contact near the joint.
- the present invention has been made in view of the above problems, and provides a piston ring having a hard coating, particularly an ion plating coating on an outer peripheral surface thereof, which is capable of achieving both wear prevention and breakage prevention at a joint portion of a piston ring.
- Ring and its An object is to provide a low-cost manufacturing method.
- the present invention relates to a piston ring having an outer peripheral surface coated with a hard coating, wherein the hard coating retains the compressive residual stress, and the thickness of the hard coating near the abutment is the thickness of the other outer peripheral surfaces.
- the film thickness in the vicinity of the joint is 1.5 to 4 times the film thickness of the other outer peripheral surface.
- the hard coating is a coating mainly composed of a nitride.
- the piston ring abutment portion faces or directly faces the evaporation source.
- a method of manufacturing a biston ring according to the first and second inventions wherein the biston ring material is attached to a multi-shaft and the evaporation source is located at the center of the revolving shaft.
- the piston ring material revolves around itself and coats the outer peripheral surface of the piston ring with the ion plating film, the joint portion of the piston ring material is attached to each shaft so that the phase is the same, and the joint portion evaporates
- the method of manufacturing a biston ring described above is characterized in that the revolution speed when facing the source is made slower than the revolution speed when another portion faces the evaporation source.
- the hard ion-plating film with high wear resistance applied to the outer periphery has compressive residual stress, it can also be used by the frictional force repeatedly applied by sliding against the cylinder inner peripheral wall. Can be peeled off by fatigue And not.
- the hard coating is formed thickly on the outer peripheral surface near the abutment where the sliding conditions are severe and the wear is rapid because the underlying steel part is exposed after the hard coating disappears as in the conventional case. This eliminates the problem of reduced sealability and seizure caused by the progress of the process.
- the thickness of the film near the abutment is made larger than that of other parts, so that the outer periphery of the piston ring abutment in the lapping process Since it can be easily secured, the productivity of the lapping process is improved, and the consumption of the lapping sleeve is reduced, so that the production can be performed at low cost.
- the rotation speed between when the piston ring abutment faces the evaporation source or before and after it faces the evaporation source is made slower than the rotation speed when the other part faces the evaporation source.
- the thickness be made arbitrarily thicker than the thickness of the other parts, but also the film thickness can be made to be a continuous change with an arbitrary change rate.
- the piston ring material is attached to multiple axes and the center of the revolution axis
- the piston ring material revolves around the evaporation source located at, and coats the outer peripheral surface of the piston ring with the ion plating film, it is attached to each shaft so that the phase of the joint of the piston ring material is the same.
- the revolution speed when the abutment portion faces the evaporation source slower than the revolution speed when the other portion faces the evaporation source
- the outer peripheral surface of the piston ring material attached to each shaft can be easily formed.
- a hard coating having an arbitrary thickness distribution can be formed.
- there is little variation within a single processing batch high quality stability, and a low-cost biston ring can be provided.
- Fig. 1 (a) is a plan view of the piston ring viewed from the axial direction.
- the outer coating thickness A is the coating thickness near the outer periphery opposite the abutment
- the outer coating thickness B is the outer connection thickness.
- (B) is a radial cross-sectional view of the abutment portion of the piston ring
- (c) is a radial cross-sectional view of the vicinity of the abutment portion.
- FIG. 2 is a plan view showing one embodiment of an ion plating apparatus for manufacturing the piston ring of the present invention.
- FIG. 3 is a graph showing the rotation speed patterns of the piston rings of Examples 1, 2, and 3.
- FIG. 4 is a graph showing rotation speed patterns of the piston rings of Examples 4 and 5.
- FIG. 5 is a diagram schematically illustrating the fatigue test method.
- FIG. 6 is a graph showing the fatigue limit of the outer peripheral portion of the comparative example and Examples 1 and 4 - ⁇ ).
- FIG. 1 shows a piston ring 1 according to an example of the present invention.
- (a) is a plan view of the piston ring viewed from the axial direction
- (b) is a radial cross-sectional view of the opposite side of the abutment of the piston ring 1, where A indicates the thickness of the ion plating film 2.
- (C) shows a radial cross-sectional view near the joint, and B is the thickness of the ion plating film 2.
- steel wires having various cross-sectional shapes are coiled to form a substantially piston ring shape.
- the outer peripheral shape at this time may be BF (relief face), eccentric BF, or half BF.
- this coiling it is formed into a curvature in which the curvature change due to the heat treatment for removing strain after coiling is corrected in advance.
- the setting of this curvature also depends on the cross-sectional shape of the piston ring steel wire and the final ring nominal diameter divided by the alloy composition of the steel wire.
- the effect of the alloy composition of the steel wire is significant.However, when high C% contains many components with high temper softening resistance such as Cr, Mo, V, and Nb, the heat treatment after coiling can be performed. Curvature change is small.
- the coiling is formed one by one under NC control, in the case of mass production, it may be formed one by one by a copying method using a master cam having a predetermined curvature.
- the piston ring material having a predetermined outer peripheral curvature is subjected to a strain relief heat treatment corresponding to the alloy composition to remove residual stress.
- the heat treatment conditions depend on the alloy composition of the steel wire, but are usually maintained at a temperature of 450 to 65 ° C for 30 minutes to 1 hour.
- FIG. 2 is a top view of the inside of the ion plating apparatus 3, and shows the positional relationship between the position of the evaporation source 4 and the material 5 of the piston ring.
- the material 5 of the piston ring whose shaft is packed in a fixed direction at the joint part in the jig, is arranged around the evaporation source 4 at a uniform radial angle at 12 places.
- the blank 5 of the piston ring packed in the jig revolves around the evaporation source 4 by using a planetary gear structure (not shown), and rotates around the evaporation source.
- the rotation of the ring material is such that while the material 5 of the biston ring makes one revolution around the evaporation source 4, it rotates 2 15/17 times.
- the gear ratio of revolution and rotation is not particularly limited to this, but any ratio is acceptable. Since the planetary gear system has a self-revolving structure, this device rotates the revolving shaft so that the rotating shaft rotates at the above-mentioned gear ratio via a gear. Set the jigs that have been cleaned and aligned with the material 5 of the biston ring so that the abutment is in a fixed direction, and set them on one or two shafts. At this time, in order to make the phases of the material 5 of the piston ring 5 packed with all 12 shafts the same, the joints of the material 5 of the piston ring of each shaft are attached so as to face the central evaporation source.
- the inside of the chamber 6 is evacuated by a vacuum pump, and when the pressure in the chamber 6 falls below a predetermined pressure, the piston ring material 5 is revolved on its own and heated to a predetermined temperature by a heater (not shown). . At this time, the rotation speed of each axis is constant for uniform heating.
- each axis of this device is a combination of gears that rotates once after revolving 17/215 times
- the cycle of 17/215 rotations of the revolving shaft is taken as one cycle, and the piston ring abutment is made between them.
- Periodic speed control is performed so that the rotation speed when facing the evaporation source becomes the minimum rotation speed, and the speed changes in a continuous sinusoidal waveform, and the speed ratio becomes 2 to 4 times.
- the joint of the piston ring material 5 has the lowest rotation speed when facing the central evaporation source, and then continuously increases in the opposite direction of the evaporation source by 180 °, and the speed of the evaporation source 180 ° The maximum speed is reached in the opposite direction, and the speed is continuously reduced again to the lowest speed at the position directly opposite the evaporation source. Therefore, theoretically, the film is continuously changed so that the film thickness at the joint portion becomes the maximum and the portion 180 ° from the joint portion has the minimum film thickness.
- a method was adopted in which the rotation speed of the piston ring was reduced in a fixed section before and after the mouth of the piston ring faced the evaporation source, and the film was formed in the same manner.
- the piston ring size is 50 to 25 ⁇
- the thickness of the coating is 0.01 to 0.1 mm
- carbon steel, silicon chrome steel, Insite stainless steel is used as the material of the biston ring.
- description will be made based on examples.
- the jigs in which the cleaned piston ring material 5 was aligned so that the abutment was in a fixed direction and the shaft was packed were mounted on one or two shafts. I set it. At this time, in order to make the phase of the material 5 of the piston ring packed with all 12 shafts the same, The piston ring material was attached so that the joint part of the piston ring material was directed to the central evaporation source 4.
- the vacuum chamber was evacuated to 2. 5 X 1 0- 4 torr by a vacuum pump to heat the material 5 of the piston ring to 450 ° C.
- Evaporation source 4 is made of metallic chromium, coated under the conditions of an arc current of 1000 A and a bias voltage of 10 V, and the obtained film has a hardness (HMV) of 1800 CrN.
- Table 2
- the residual stress of the CrN film was found to be 600 to 700 MPa by X-ray diffraction. After rubbing, finish polishing on both sides, and finally grinding to equalize the gap size at the abutment, nominal diameter (d1) 95 mm, thickness (a1) 3.35 mm, width (H1) A predetermined piston ring of 2.3 mm was obtained.
- the piston rings of the present invention for all steel types have a smaller number of wrappings until the entire circumference comes out than the conventional piston rings, indicating that the effect of the present invention is remarkable. Also, it can be said that there is an appropriate value for the difference in film thickness between the joint and other parts due to the heat resistance of the steel type, but it is clear that the rotational speed ratio can be determined by repeating the number of experiments.
- FIG. 6 shows the outer peripheral fatigue strength of the comparative example and Examples 1 and 4. It is clear that the fatigue strength is improved in Example 14 as compared to the comparative example.
- the piston ring according to the present invention is effective in preventing breakage due to fatigue at a position opposite to the joint.
- Table 5 shows the results of an endurance evaluation with a rated output of 600 hours for each cylinder set in a 4-cylinder diesel engine.
- the thickness of the ion-plated coating at the abrasion joint is thicker than that of the other parts. It turns out that it becomes longer. That is, it can be seen that the durability of the piston ring has been improved.
- the piston ring of the present invention is a piston ring that is superior in durability and has no risk of breakage as compared with the conventional piston ring.
- the film may peel off due to the frictional force repeatedly applied by sliding with the inner wall of the cylinder. Absent.
- the hard coating is formed thick on the outer peripheral surface near the abutment where the operating conditions are severe and the wear is likely to occur, the steel part of the base is exposed after the hard coating disappears and the wear is rapid as in the past. Eliminating the problem of sealability and seizure occurring due to the progress is eliminated.
- Hard coating except at the joint Since the film is formed to be thinner than the joint part, even if the film retains the compressive residual stress, the hard film is not easily chipped and the yield in the manufacturing process is improved. In addition, since the film is thin, the tensile residual stress generated in the steel part immediately below the film is also small, so that the piston ring is less susceptible to fatigue failure.
- the piston ring material is attached to each shaft so that the phase of the joint is the same, and the revolution speed when the joint directly faces the evaporation source is the revolution speed when the other portion faces the evaporation source.
- the piston ring after the ion plating film coating obtained by the above process excels in mass productivity within one processing batch, has little variation, and has high quality stability.
- the curvature change of the outer periphery of the abutment due to the ion plating film coating is small, so the lapping time is short and the wrapping sleeve is consumed. Few.
- each one is formed into an elliptical shape by an NC-controlled coiling machine.
- the piston was heated and held under the conditions to form a rough shape, and then the outer peripheral surface was processed into a predetermined shape. You can also get a ring.
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60137872T DE60137872D1 (de) | 2000-12-26 | 2001-12-21 | Kolbenring und verfahren zur herstellung desselben |
KR10-2003-7008577A KR20030061469A (ko) | 2000-12-26 | 2001-12-21 | 피스톤링 및 그 제조방법 |
US10/451,732 US7052019B2 (en) | 2000-12-26 | 2001-12-21 | Piston ring and method of manufacturing the same |
BRPI0116580-1A BR0116580B1 (pt) | 2000-12-26 | 2001-12-21 | anel de pistão e método para fabricação do mesmo. |
EP01994989A EP1359351B1 (en) | 2000-12-26 | 2001-12-21 | Piston ring and method of producing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000395674A JP4680380B2 (ja) | 2000-12-26 | 2000-12-26 | ピストンリング及びその製造方法 |
JP2000-395674 | 2000-12-26 |
Publications (1)
Publication Number | Publication Date |
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WO2002052179A1 true WO2002052179A1 (fr) | 2002-07-04 |
Family
ID=18861098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/011278 WO2002052179A1 (fr) | 2000-12-26 | 2001-12-21 | Segment de piston et procede de production correspondant |
Country Status (8)
Country | Link |
---|---|
US (1) | US7052019B2 (ja) |
EP (1) | EP1359351B1 (ja) |
JP (1) | JP4680380B2 (ja) |
KR (1) | KR20030061469A (ja) |
CN (1) | CN100549471C (ja) |
BR (1) | BR0116580B1 (ja) |
DE (1) | DE60137872D1 (ja) |
WO (1) | WO2002052179A1 (ja) |
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JP4548975B2 (ja) * | 2001-06-14 | 2010-09-22 | 帝国ピストンリング株式会社 | 皮膜の残留応力測定方法 |
EP1786485A4 (en) * | 2004-02-06 | 2012-05-30 | Georgia Tech Res Inst | CELLULAR IMPLANTATION WITH SURFACE ADHESION |
JP5060083B2 (ja) * | 2006-08-24 | 2012-10-31 | トクセン工業株式会社 | ピストンリングの製造方法 |
BRPI0605175B1 (pt) * | 2006-12-05 | 2020-01-21 | Mahle Metal Leve S/A | anel de pistão para motores de combustão interna |
EP2270247B1 (en) * | 2008-03-27 | 2014-04-30 | Hitachi Metals, Ltd. | Piston ring material for internal combustion engine |
JP5199799B2 (ja) * | 2008-03-31 | 2013-05-15 | シチズンファインテックミヨタ株式会社 | 真空蒸着方法及び真空蒸着装置 |
DE102009010726B3 (de) * | 2009-02-26 | 2010-12-09 | Federal-Mogul Burscheid Gmbh | Kolbenringe und Zylinderlaufbuchsen |
DE102009010728C5 (de) * | 2009-02-26 | 2019-08-14 | Federal-Mogul Burscheid Gmbh | Kolbenringe und Zylinderlaufbuchsen |
DE102009010727B3 (de) * | 2009-02-26 | 2011-01-13 | Federal-Mogul Burscheid Gmbh | Stahlgusswerkstoffzusammensetzung zur Herstellung von Kolbenringen und Zylinderlaufbuchsen |
DE102009015009B3 (de) * | 2009-03-26 | 2010-12-09 | Federal-Mogul Burscheid Gmbh | Kolbenring |
BRPI0903320A2 (pt) * | 2009-09-24 | 2011-05-24 | Mahle Metal Leve Sa | anel de pistão e processo de fabricação de um anel de pistão |
DE102009052587A1 (de) * | 2009-11-10 | 2011-05-12 | Federal-Mogul Burscheid Gmbh | Kolbenring |
DE102010046551B4 (de) * | 2010-09-27 | 2014-09-04 | Federal-Mogul Burscheid Gmbh | Verfahren zur Herstellung eines Kolbenrings |
DE102010048079B4 (de) * | 2010-10-09 | 2013-03-28 | Federal-Mogul Burscheid Gmbh | Verfahren zur Herstellung eines Kolbenrings |
DE102011010656A1 (de) * | 2011-02-09 | 2012-08-09 | Federal-Mogul Burscheid Gmbh | Kolbenring |
BR102013012133A2 (pt) | 2013-05-15 | 2015-05-26 | Mahle Metal Leve Sa | Anel de pistão |
DE102013009369B4 (de) | 2013-06-04 | 2015-05-07 | Federal-Mogul Burscheid Gmbh | Verfahren zur Herstellung eines Kolbenrings |
EP3006787A4 (en) * | 2013-06-07 | 2017-07-19 | Kabushiki Kaisha Riken | Piston ring, raw material therefor, and production method for both |
BR102013031138B1 (pt) * | 2013-12-03 | 2020-10-27 | Mahle International Gmbh | anel de pistão |
JP5859048B2 (ja) * | 2014-03-20 | 2016-02-10 | サンコール株式会社 | ピストンリング及びピストンリング用金属製平角線 |
BR102014025243B1 (pt) * | 2014-10-09 | 2022-09-27 | Mahle Metal Leve S/A | Anel de pistão para motores de combustão interna, processo para obtenção de anel de pistão e motor de combustão interna |
JP6498986B2 (ja) * | 2015-03-26 | 2019-04-10 | 株式会社リケン | ピストンリング |
BR102016007169B1 (pt) | 2016-03-31 | 2023-01-10 | Mahle International Gmbh | Anel de pistão para motores de combustão interna, processo para obtenção de anel de pistão e motor de combustão interna |
JP6784608B2 (ja) | 2017-02-09 | 2020-11-11 | 株式会社神戸製鋼所 | 成膜装置および成膜物の製造方法 |
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BR102017007599B1 (pt) | 2017-04-12 | 2022-07-26 | Mahle Metal Leve S.A. | Anel de pistão para motores de combustão interna |
US11162586B2 (en) | 2017-06-02 | 2021-11-02 | Mahle International Gmbh | Piston ring and method of manufacture |
US11156291B2 (en) | 2017-06-02 | 2021-10-26 | Mahle International Gmbh | Piston ring and method of manufacture |
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JP3464320B2 (ja) * | 1995-08-02 | 2003-11-10 | 株式会社荏原製作所 | 高速原子線を用いた加工方法及び加工装置 |
RU2110693C1 (ru) * | 1996-04-01 | 1998-05-10 | Челябинский государственный технический университет | Поршневое кольцо для двигателя внутреннего сгорания или поршневого компрессора |
JP3420900B2 (ja) * | 1996-10-21 | 2003-06-30 | 大日本スクリーン製造株式会社 | 塗布液塗布方法 |
JPH10252890A (ja) | 1997-03-13 | 1998-09-22 | Kanai Hiroaki | オイルリング |
US5912049A (en) * | 1997-08-12 | 1999-06-15 | Micron Technology, Inc. | Process liquid dispense method and apparatus |
WO1999026259A1 (fr) * | 1997-11-18 | 1999-05-27 | Matsushita Electric Industrial Co., Ltd. | Lamine, condensateur et procede de production du lamine |
JP3792413B2 (ja) | 1998-10-19 | 2006-07-05 | 日本ピストンリング株式会社 | ピストンリング |
JP4282821B2 (ja) | 1999-03-23 | 2009-06-24 | 帝国ピストンリング株式会社 | 摺動部材 |
-
2000
- 2000-12-26 JP JP2000395674A patent/JP4680380B2/ja not_active Expired - Fee Related
-
2001
- 2001-12-21 BR BRPI0116580-1A patent/BR0116580B1/pt not_active IP Right Cessation
- 2001-12-21 EP EP01994989A patent/EP1359351B1/en not_active Expired - Lifetime
- 2001-12-21 KR KR10-2003-7008577A patent/KR20030061469A/ko active Search and Examination
- 2001-12-21 CN CNB018228739A patent/CN100549471C/zh not_active Expired - Fee Related
- 2001-12-21 US US10/451,732 patent/US7052019B2/en not_active Expired - Fee Related
- 2001-12-21 WO PCT/JP2001/011278 patent/WO2002052179A1/ja not_active Application Discontinuation
- 2001-12-21 DE DE60137872T patent/DE60137872D1/de not_active Expired - Lifetime
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JPS56171651U (ja) * | 1980-05-21 | 1981-12-18 | ||
JPH0727228A (ja) * | 1993-07-07 | 1995-01-27 | Teikoku Piston Ring Co Ltd | 摺動部材およびCrN皮膜の被覆方法 |
JPH07292458A (ja) * | 1994-04-21 | 1995-11-07 | Riken Corp | 摺動部材及びその製造方法 |
JPH10140351A (ja) * | 1996-11-05 | 1998-05-26 | Kobe Steel Ltd | インライン式真空成膜装置 |
JPH11152558A (ja) * | 1997-11-18 | 1999-06-08 | Suzuki Motor Corp | 耐摩耗性摺動部材 |
Non-Patent Citations (1)
Title |
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See also references of EP1359351A4 * |
Also Published As
Publication number | Publication date |
---|---|
US7052019B2 (en) | 2006-05-30 |
US20040056425A1 (en) | 2004-03-25 |
EP1359351A4 (en) | 2005-04-13 |
JP4680380B2 (ja) | 2011-05-11 |
EP1359351B1 (en) | 2009-03-04 |
BR0116580B1 (pt) | 2010-12-28 |
EP1359351A1 (en) | 2003-11-05 |
JP2002195409A (ja) | 2002-07-10 |
CN100549471C (zh) | 2009-10-14 |
DE60137872D1 (de) | 2009-04-16 |
CN1492978A (zh) | 2004-04-28 |
KR20030061469A (ko) | 2003-07-18 |
BR0116580A (pt) | 2004-01-06 |
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