EP2228462B1 - Verfahren zum Aufbringen einer Beschichtung auf eine Sitzfläche eines Werkstücks - Google Patents

Verfahren zum Aufbringen einer Beschichtung auf eine Sitzfläche eines Werkstücks Download PDF

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Publication number
EP2228462B1
EP2228462B1 EP20100152429 EP10152429A EP2228462B1 EP 2228462 B1 EP2228462 B1 EP 2228462B1 EP 20100152429 EP20100152429 EP 20100152429 EP 10152429 A EP10152429 A EP 10152429A EP 2228462 B1 EP2228462 B1 EP 2228462B1
Authority
EP
European Patent Office
Prior art keywords
coating
bore
seat
seat surface
nozzle
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.)
Not-in-force
Application number
EP20100152429
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German (de)
English (en)
French (fr)
Other versions
EP2228462A1 (de
Inventor
Dietmar Dr. Schlager
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.)
Wartsila NSD Schweiz AG
Original Assignee
Wartsila NSD Schweiz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wartsila NSD Schweiz AG filed Critical Wartsila NSD Schweiz AG
Priority to EP20100152429 priority Critical patent/EP2228462B1/de
Publication of EP2228462A1 publication Critical patent/EP2228462A1/de
Application granted granted Critical
Publication of EP2228462B1 publication Critical patent/EP2228462B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/166—Selection of particular materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1886—Details of valve seats not covered by groups F02M61/1866 - F02M61/188
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9038—Coatings

Definitions

  • the invention relates to a method for applying a coating to a seat surface of a workpiece, in particular a seat in a nozzle body of an injection nozzle of a two-stroke large diesel engine, and a workpiece, in particular injection nozzle with a coated seat according to the preamble of the independent claim of the respective category.
  • needle valves have a seat surface which is often provided deep in very long thin bores such that a nozzle needle of the valve, for example a nozzle needle in an injection valve for injecting fuel into the combustion chamber of an internal combustion engine, with the seat functionally cooperate.
  • the nozzle needle interacts functionally with the seat as a valve.
  • fuel can flow from a pressure chamber into a longitudinal bore adjoining the valve seat downstream and from there into the combustion chamber of the internal combustion engine via nozzle holes. If the nozzle needle moves back into the valve seat, so the fuel supply to the nozzle holes is interrupted and the injection of the fuel is terminated in the Berennraum.
  • injectors such as injectors, control valves for injection components, such as control valves for injection pumps, seats in lubricating oil holes in cylinder inserts of internal combustion engines, for example, in two-stroke large diesel engines, etc.
  • injectors control valves for injection components
  • control valves for injection pumps seats in lubricating oil holes in cylinder inserts of internal combustion engines, for example, in two-stroke large diesel engines, etc.
  • workpieces that are operated in an aggressive environment made of corrosion-resistant materials, so that the corresponding component is protected, among other things against high temperatures or chemical attack.
  • a prominent example of such a highly loaded component are injection nozzles for two-stroke large diesel engines, which are often operated, among other things, with highly aggressive heavy oil.
  • a heavy oil or other diesel fuel - is introduced by means of fuel injection nozzles in the combustion chamber.
  • injectors normally include a nozzle head partially projecting into the combustion chamber, also referred to as a nebulizer.
  • the nozzle head is a wear part, which is subject to a high thermal, mechanical and chemical load collective. Depending on the degree of stress, damage to the nozzle head may occur, for example material removal as a result of corrosion, erosion and / or abrasion, or even cracks that can lead to breakup.
  • the mechanical loads are also based on the high injection pressure, which can be over a thousand bar. Inside the nozzle head, material losses due to cavitation and / or erosion can occur.
  • the thermal loads are based on the high temperatures in the Combustion chamber and the enormous temperature changes between the combustion temperature and the temperature of the freshly supplied purge air. Also in the interior of the nozzle head, through which the fuel is introduced, the intermittent injection leads to shock-like temperature changes.
  • the chemical load of the nozzle head is mainly due to high temperature or hot corrosion. Hot corrosion, which is primarily caused by vanadium, sodium and sulfur contained in the fuel, promotes material degradation and erosion. In particular, the corrosion is the reason that a nozzle head can be unusable after a few thousand hours of operation and must be replaced.
  • alloys with high chromium and nickel content in which the chromium and nickel content is, for example, around 50% weight percent, but above all, alloys with a chromium content of more than 50% - weight percent, such as Cr / Ni 65/35 alloys, which are produced by means of a so-called HIP process, although have very good properties in relation to the above-mentioned problems with high-temperature or hot corrosion.
  • Such materials with high chromium content and excellent chemical properties in terms of high-temperature and hot corrosion are already in the EP 1 353 061 disclosed and described in detail.
  • good corrosion properties of certain materials are at the expense of hardness.
  • the nozzle bodies themselves are well protected against chemically and physically aggressive environments.
  • the seating surfaces with which, for example, the nozzle needles co-operate have insufficient hardness, which can cause the respective seating surfaces and / or the nozzle needles to wear prematurely, which can lead to leaks, fuel metering inaccuracies, and the like.
  • the international patent application WO2007148716 A1 discloses a method for coating the seating surface in a bore in which an electrode is guided into the bore and the electrode material is vaporized by electrical discharge and applied to the seating surface.
  • Fig. 2a will be briefly considered as an example of an injection nozzle for a two-stroke large diesel engine.
  • the reference numerals to features of known workpieces are provided with an apostrophe, while the reference numerals to inventive features carry no apostrophe in the context of this application.
  • the known injection nozzle 31 'of Fig. 2a includes a nozzle body 300 'having a nozzle head 301' connected to the nozzle body 300 '.
  • the connection takes place by means of a holding sleeve 302 ', which tapers at its lower end to the longitudinal axis A' of the fuel injector 31 'out.
  • the longitudinal axis A ' is at the same time also the longitudinal axis A' of the nozzle head 301 '.
  • the retaining sleeve 302 ' is by means of a union nut 303' and an elastic member 304 ', for example a snap ring, attached to the nozzle body 300'.
  • the nozzle head 301 ' is supported in the tapered portion of the retaining sleeve 302' from.
  • the nozzle head 301 ' has a longitudinal bore 305' and in the region of its lower end at least one nozzle hole 306 ', typically z. B. five nozzle holes 306 ', from the longitudinal bore 305' go out and through which the fuel in the combustion chamber B 'can escape.
  • a pressure chamber 307' is provided, in which a feed line 308 'opens for the fuel.
  • the pressure chamber 307 ' is bounded in the axial direction by a valve seat 2'.
  • a nozzle needle 7' is arranged, which extends substantially in the direction of the longitudinal axis A 'and which cooperates with the valve seat 2'. In the in Fig. 2a shown closed position, the lower tip of the nozzle needle 7 'is pressed into the valve seat 2', so that the passage from the pressure chamber 307 'in the downstream adjoining longitudinal bore 305' is closed.
  • the nozzle needle 7 ' is spring-loaded in a conventional manner by means of a compression spring, not shown, and biased against the valve seat 2'. In the open position of the nozzle needle 7 ', this is lifted up out of the valve seat 2', so that between the lower end of the nozzle needle 7 'and the valve seat 2', a passage is open, through which the fuel from the pressure chamber 307 'in the longitudinal bore 305 'can get.
  • the volume between the valve seat 2 'and the nozzle holes 306' is commonly referred to as a blind hole.
  • the longitudinal bore 305 ' is designed in the specific example described here as a substantially cylindrical bore which extends in the direction of the longitudinal axis A'.
  • the diameter d 'of the longitudinal bore 305' defines a flow area, which means the available for the flow of the fuel cross-sectional area in the longitudinal bore 305 'is meant.
  • the nozzle needle 7 ' is in the bore 4', which in Fig. 2a for reasons of space only partially shown, provided and has an inlet opening 5 ', through which the nozzle needle 7' in the bore 4 'can be inserted.
  • the seat surface 2 ' is provided from the inlet opening 5' at a distance L ', wherein the bore 4' itself has an inner diameter D ', which is slightly larger than an outer diameter of the nozzle needle 7', so that the nozzle needle 7 'safe and precisely in the bore 4 'is guided.
  • the distance L ' is typically large against the diameter D' of the bore 4 '. That is, when in the context of the present application of a long thin bore is mentioned, then it is meant a bore whose diameter is small compared to a typical or typical for the bore length.
  • the diameter of the bore is e.g. about 10% of the relevant length of the bore, which of course also significantly different ratios of diameter to bore are possible, depending on which workpiece is concerned.
  • the object of the invention is therefore to propose a method for applying a coating to a seat surface of a workpiece, as well as a corresponding workpiece, so that the known from the prior art problems with the seat surfaces of the workpiece are avoided, and in particular higher service life and thus shorter maintenance intervals and ultimately a higher level of operational reliability is achieved.
  • a further object of the invention is to provide a method with which a coating can be produced on a seating surface in a thin and long bore.
  • a method is to be made available with which a seat in a thin and long bore of a workpiece can be retrofitted with a coating.
  • a method for applying a coating to a seat surface of a workpiece wherein the seat is provided within a bore in the workpiece at a predetermined distance from an inlet opening of the bore.
  • a coating material is applied to the seat surface in a preceding process step, and in a further process step the coating is formed on the seat surface by means of an energy beam, by directing the energy beam through the bore onto the seat surface.
  • the method of the present invention it is possible for the first time to choose the material properties of a base material from which a workpiece, such as an injection nozzle for a two-stroke large diesel engine is made, completely independent of the material requirements are required to a reliably functioning seat deep inside a long thin bore in the workpiece.
  • a Ni-based, Cr-based, Cu-based or Fe-based alloy material which is relatively soft but offers very good protection against hot gas corrosion or chemical attack.
  • a coating material for the seat for example, a significantly harder material can be selected, so that the seat against permanent mechanical stress better against premature wear, for example. is protected by material removal, cavitation, erosion, micro-welding or material fatigue, etc.
  • the coating of the seat surface is made of a softer material than the workpiece itself, for example, to achieve a better seal on the seat or other or to realize another desired material property on the seat
  • a material of a metal matrix with embedded particles whose hardness is equal to or higher than that of the metal matrix are used.
  • the coating on the seat can be optimized by the coating on the seat.
  • the seat itself must be protected against other corrosive processes, such as e.g. an outer wall of the workpiece itself, which is exposed to another aggressive environment with harmful effects.
  • the present invention is so flexible that by suitable choice of the material for the coating on the Seat and / or the fact that the coating process itself certain coating conditions are selected specifically, such as the energy density of the energy beam or the action of the energy beam during the coating process, virtually any desired property of the coating on the seat can be selectively adjusted.
  • the coating material is applied to an energy input by the energy beam, preferably in the form of a coating powder and / or in the form of a coating wire, or in the form of small pieces of a coating wire and / or in the form of a prefabricated coating body at least on a part of the seat.
  • the coating material may also be applied to the seating surface simultaneously with energy input by the energy beam, i. It is a special case of the well-known order welding.
  • a new workpiece e.g. a new injection nozzle for a two-stroke large diesel engine
  • a function hole can be introduced through which can be transported in the operating state, for example, fuel.
  • a laser beam is used as the energy beam, but also other energy beams such as an electron beam can be used advantageously in certain cases.
  • the seat is provided in a workpiece according to the invention in a long thin bore deep in the workpiece, wherein a smallest diameter of the bore in a region between the inlet opening and the seat maximum 50% of the distance, in particular not more than 25% of the distance, and the smallest diameter of the Bore preferably a maximum of 10% of the distance from the inlet opening amounts.
  • the workpiece is preferred, but not necessary, a nozzle body of a nozzle, in particular an injection nozzle of a two-stroke large diesel engine, or a safety valve or a control valve for a component of an injection system or a lubricating oil hole in a cylinder insert.
  • a coating material is in principle any material in question, with which a desired property of the coating can be adjusted on the seat.
  • a cobalt-based alloy, and / or a chromium-based alloy and / or a nickel-based alloy and / or an iron-based alloy may be used as coating material.
  • the disclosure further relates to a workpiece in which a seat surface is provided within a bore at a predetermined distance from an entrance opening of the bore, wherein on the seat surface, a coating is formed, which made by means of a directed through the bore on the seat energy beam of a coating material is.
  • a function bore can be provided through the coating.
  • a smallest diameter of the bore is in a region between the inlet opening and the seat maximum 50% of the distance, in particular a maximum of 25% of the distance, and the smallest diameter of the bore may preferably not exceed 10% of the distance of the seat from the inlet opening amount.
  • a hardness of the coating other than a hardness of the workpiece and / or a corrosion resistance of the coating may be different from a corrosion resistance of the workpiece and / or any other property of the coating differ from the corresponding characteristic of the workpiece.
  • a first simple embodiment of a method for producing a coating 1 on a seat surface 2 in a long thin bore 4 of a workpiece 3 is exemplified.
  • the workpiece 3 of Fig. 1 is a partially sectional control valve 3 of a component of an injection system for a two-stroke large diesel engine.
  • the seat 2 is used in the assembled state of the control valve 3 for supporting a movable along the axis A valve needle, which is used only after application of the coating 1 to the valve seat 2 in the control valve 3.
  • the hole 4 according to Fig. 1a - 1c it is a thin long hole in the sense of registration.
  • the bore has a diameter of 3.5 mm and the Seat 2 is arranged from the inlet opening 5 at a distance L of about 25 mm deep in the bore. That is, the smallest diameter D of the bore, which is constant in the present case along the axis A, is only about 14% of the distance L of the seat 2 of the input port. 5
  • the coating powder 100 is heated, thereby wholly or partially melted or melted, so that finally on the seat 2, the coating 2 is formed, for example due to formation of a fusion metallurgical compound or adherence of the layer.
  • Fig. 1c is to see the finished coating 1 on the seat 2, which may need to be reworked, if necessary, to ensure a secure fit of the valve needle, not shown on the coating 1.
  • a per se known injector 31 'for a two-stroke large diesel engine with a coating 1 can be retrofitted.
  • Fig. 2a is an injection nozzle 31 'known from the prior art partially and schematically shown in section.
  • the Fig. 2a has already been described in detail above, so that with the description of the Fig. 2b is continued.
  • a prefabricated coating body 102 made of a coating material 100 was placed on the seat surface 2 through the bore 4. Since the injection nozzle 3, 31 is already a workpiece 3 according to the present invention at the latest, and no longer an injection nozzle 31 'known from the prior art, from now on all reference symbols without apostrophes are used, since the corresponding ones are used Features relate to an inventive injection nozzle 3, 31.
  • Fig. 2d is the completion of the seat 1 just completed.
  • the laser is about to shut down.
  • the coating body 102 was heated by the laser beam 6 from the laser 600 in a predetermined heating process such that the coating body 102 was reliably connected to the seat surface 2 and thus forms a coating 1 according to the present invention on the seat surface 2.
  • a known per se injection valve has been successfully retrofitted with a seat coating 1 according to the invention.
  • Fig. 3a is a blank of a nozzle head 301 partially and schematically shown in section.
  • the blank of the nozzle head 301 has a blind bore 4, at the lower end of which a seat 2 is provided at a distance L from an inlet opening 5 such that the seat surface 2 extends over the entire cross section of the blind hole 4.
  • a coating powder 100, 101 introduced, which covers the seat 2.
  • the laser 600 has just been switched on and heated with the laser beam 6 through the bore 4 through the coating material 100, 101, whereby a coating 1 on the seat surface 2 is formed.
  • Fig. 3b the laser 600 has already been switched off because the coating 1 on the seat surface 2 is finished.
  • the injection nozzle 31 can fulfill its function, according to Fig. 3c by means of a suitable drill through the bore 4 through a longitudinal bore 305 in the form of a blind hole through the coating 1 and the seat 2 is introduced.
  • a workpiece 3 for example in the form of a nozzle 31 so far unreachable service life can be realized, which is particularly important from an economic point of view of great importance.
  • the nozzle head is on the one hand thus, among other things, especially for future generations of large diesel engines, which are even more powerful and even higher demands on the load capacity of the nozzle heads.
  • already in-service components according to the invention can be retrofitted.
  • the invention is not limited to special applications in large diesel engines, but the invention can be used successfully wherever long thin holes in the sense of present invention seating surfaces must be provided with coatings that have to fulfill certain functions.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Laser Beam Processing (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP20100152429 2009-03-09 2010-02-02 Verfahren zum Aufbringen einer Beschichtung auf eine Sitzfläche eines Werkstücks Not-in-force EP2228462B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100152429 EP2228462B1 (de) 2009-03-09 2010-02-02 Verfahren zum Aufbringen einer Beschichtung auf eine Sitzfläche eines Werkstücks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09154587 2009-03-09
EP20100152429 EP2228462B1 (de) 2009-03-09 2010-02-02 Verfahren zum Aufbringen einer Beschichtung auf eine Sitzfläche eines Werkstücks

Publications (2)

Publication Number Publication Date
EP2228462A1 EP2228462A1 (de) 2010-09-15
EP2228462B1 true EP2228462B1 (de) 2014-09-24

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EP20100152429 Not-in-force EP2228462B1 (de) 2009-03-09 2010-02-02 Verfahren zum Aufbringen einer Beschichtung auf eine Sitzfläche eines Werkstücks

Country Status (5)

Country Link
EP (1) EP2228462B1 (ja)
JP (1) JP5481222B2 (ja)
KR (1) KR20100101516A (ja)
CN (1) CN101829650B (ja)
DK (1) DK2228462T3 (ja)

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JP5907718B2 (ja) * 2011-12-16 2016-04-26 三菱重工業株式会社 肉盛溶接方法
WO2014181864A1 (ja) * 2013-05-10 2014-11-13 株式会社Ihi ユニフロー掃気式２サイクルエンジン
CN105189968B (zh) * 2013-05-10 2018-04-13 株式会社 Ihi 单流扫气式二冲程发动机
CN104745999B (zh) * 2015-03-02 2017-03-08 安徽工业大学 一种基于激光冲击波技术的内孔孔壁冲击喷涂的方法及装置
JP2019060251A (ja) * 2017-09-25 2019-04-18 日立オートモティブシステムズ株式会社 高圧燃料供給装置

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CN101829650A (zh) 2010-09-15
JP5481222B2 (ja) 2014-04-23
DK2228462T3 (en) 2014-12-08
CN101829650B (zh) 2015-11-25
EP2228462A1 (de) 2010-09-15
JP2010209464A (ja) 2010-09-24
KR20100101516A (ko) 2010-09-17

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