EP3325685A1 - Procédé pour recouvrir une surface de glissement de cylindre d'un bloc-cylindres, bloc-cylindres avec une surface de glissement de cylindre recouverte et moteur - Google Patents

Procédé pour recouvrir une surface de glissement de cylindre d'un bloc-cylindres, bloc-cylindres avec une surface de glissement de cylindre recouverte et moteur

Info

Publication number
EP3325685A1
EP3325685A1 EP16730300.7A EP16730300A EP3325685A1 EP 3325685 A1 EP3325685 A1 EP 3325685A1 EP 16730300 A EP16730300 A EP 16730300A EP 3325685 A1 EP3325685 A1 EP 3325685A1
Authority
EP
European Patent Office
Prior art keywords
layer
coating
base material
cylinder
adhesion promoter
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.)
Granted
Application number
EP16730300.7A
Other languages
German (de)
English (en)
Other versions
EP3325685B1 (fr
Inventor
Klaus Stefan Klimek
Stefan Richter
Jürg WIPF
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP3325685A1 publication Critical patent/EP3325685A1/fr
Application granted granted Critical
Publication of EP3325685B1 publication Critical patent/EP3325685B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
    • 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
    • C23C4/04—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
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/004—Cylinder liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/20—Other cylinders characterised by constructional features providing for lubrication

Definitions

  • the invention relates to a method for coating a cylinder bore of a
  • Cylinder crankcase a cylinder crankcase and a motor.
  • thermal spraying processes are frequently used, such as plasma spraying; High velocity flame spraying (HVOF), arc spraying and arc wire spraying.
  • HVOF High velocity flame spraying
  • arc spraying arc wire spraying
  • the coating comprises several individual layers, which are arranged one above the other and usually have different functionalities.
  • Thermal protection layers TBC
  • corrosion protection layers erosion protection layers or sliding layers, which facilitate the sliding of mating bodies together.
  • An application example here is the coating of cylinder surfaces in internal combustion engines with layers having good lubricating and friction properties, whereby the running characteristics of the piston in the cylinder are improved.
  • Coating processes include powder plasma spraying, wire spraying processes such as plasma transfer wire arc (PTWA) and arc wire spraying (LDS) or
  • the invention is based on the object of providing a method for coating a metallic workpiece, in particular a cylinder bore of a cylinder crankcase, in which a pretreatment and in particular roughening of the surface are dispensable.
  • a first aspect of the invention relates to a method for coating a
  • Cylinder track of a cylinder crankcase comprising in step (a) providing a powdery base material and a powdery adhesion promoter, wherein the adhesion promoter comprises a mixture of molybdenum and an aluminum-containing alloy, such as NiAl, in particular Ni (95%) Al (5%), or CuAl, in particular Cu (90%) Al (10%). Particularly preferred is the use of Ni (95%) Al (5%) as an aluminum-containing alloy for the adhesion promoter.
  • the method according to the invention comprises
  • Cylinder crankcase by means of a thermal coating process in a step (b), wherein either a layer of a powder mixture of adhesion promoter and
  • Base material is arranged on the cylinder liner or a first layer comprising the bonding agent arranged on the cylinder barrel and then a second layer comprising the base material is disposed on the first layer.
  • Thermal coating processes include powder plasma spraying, wire spraying processes such as plasma transfer wire arc (PTWA) and arc wire spraying (LDS) or
  • a process step for pretreatment, which precedes a coating of the workpiece is not necessary and can be saved. This saving leads to economic, especially financial advantages, since the process time is reduced overall.
  • the pretreatment is a roughening of the material, there is no need for expensive disposal of the materials used during the roughening process.
  • an increase in quality of the workpiece is achieved in addition, since errors on the workpiece surface, which can be caused by the pretreatment, in particular the roughening of the surface, be completely avoided.
  • the method according to the invention also finely spindled surfaces can be coated without sacrificing quality.
  • the coating produced by the method according to the invention serves as a protective layer for a cylinder bore of a cylinder crankcase.
  • a protective layer for a cylinder bore of a cylinder crankcase Preferably, by the
  • the adhesion promoter is either arranged together with the base material on the metallic workpiece surface (cylinder bore) and is then present together with the base material in a mixed layer on the workpiece surface, so that an adhesive base formed in the protective layer is formed. Alternatively or in addition, this looks
  • Base material to be arranged as a primer on the workpiece surface and then to be placed on the primer a protective layer, which preferably only the base material, but at least not the adhesion promoter has.
  • the bonding agent and the base powder lie as a physical mixture, so do not form any chemical compounds or alloys.
  • the separation of primer and base material in two layers offers several advantages.
  • the effect of the adhesion promoter can be increased and thus the adhesion of the coating on the workpiece surface can be improved, on the other hand, the adhesion promoter does not come with a separate application of the individual layers with the
  • the coating of all said layers takes place with the same thermal coating process.
  • Double powder conveyor for powder delivery to minimize the overhead of an additional coating step. So can in the provision of
  • a barrel primer and a barrel base material a change between the two powders can be done easily, advantageously a cleaning or a change of a feed tube or similar. is not required.
  • Alloy such as AISi 17 , AISi 9 , and others, or more particularly one
  • the aluminum-containing alloy of the coupling agent is preferably a nickel-aluminum alloy (nickel-base alloys), a copper-aluminum alloy optionally containing iron, a cobalt-aluminum alloy, a silicon-aluminum alloy, a magnesium-cobalt-aluminum alloy, a silver-aluminum alloy , Cobalt-chromium-based hard alloys or aluminum bronze.
  • Base material is achieved when molybdenum in the range of 20 to 80 wt .-% and / or the aluminum-containing alloy in the range of 20 to 80 wt .-% based on the adhesion promoter is present. These details are preferably based on the provided powdery material.
  • the adhesion promoter in addition to molybdenum and aluminum of the aluminum-containing alloy has no further components, so that the percentage of
  • Molybdenum and the aluminum-containing alloy preferably add to 100%.
  • the adhesion promoter has 0-60% of the base material to be coated on the adhesion promoter, which then adds up to 100% with molybdenum and the aluminum-containing alloy. It is further preferred that 0.2-5% of boron be added to the coupling agent to aid adhesion.
  • the silicon content is from 8 to 25 wt .-% based on the adhesion promoter.
  • hard alloys preferably cobalt-chromium-based, wherein the alloy preferably from 26 to 29 wt .-% chromium, 4.5 to 6 wt .-% molybdenum, 0.2 to 0.35 wt .-% carbon, 2 to 3 wt .-% nickel and up to 67 wt .-% cobalt and other components in a small extent, for example, iron, silicon and / or manganese.
  • the inventive method can be carried out with all known coatings which are suitable for wear of the workpiece surface by temperature and / or
  • the base material comprises iron or an iron alloy, steel, preferably a low-alloy steel or an iron-based steel, in particular 100Cr6, with 0.05 to 1.5 wt .-% carbon; 0.05 to 3.5% by weight of manganese; 0.05 to 3.0% by weight of chromium; 0.01 to 1% by weight of silicon and / or 0.001 to 0.4% by weight of sulfur and / or a chromium steel having an iron base and 0.05 to 0.8% by weight of carbon; 0-3% by weight of molybdenum; 0.05 to 1 .8% by weight of manganese; 1: 1 to 5 wt% chromium; 0.01 to 1% by weight of silicon and / or 0.002 to 0.2% by weight of sulfur).
  • titanium dioxide is preferred. These are particularly well suited as a protective layer, in particular for cylinder components, and interact with the adhesion promoters mentioned in such a way that adhesion, in particular to cast iron but also to light metal surfaces, is markedly improved.
  • adhesion promoter and the base material by weight in a ratio of about 10: 90, 20: 80, 30: 70, 40: 60 or 50: 50 in the powder mixture of primer and base material available.
  • a coating applied with the method according to the invention in this embodiment shows an optimum ratio of friction resistance and adhesion.
  • the method comprises a further step (c), in which the base material by means of the thermal
  • Coating method is applied to the coating produced in step (b).
  • This embodiment is particularly advantageous if in step (b) a powder mixture of base material and adhesion promoter is applied to the workpiece surface. In this preferred embodiment, it is ensured that the coated workpiece surface with a layer comprising the base material, but not the adhesion promoter, against the
  • the thermal coating method is plasma spraying.
  • Plasma spray coating is carried out in normal atmosphere, inert atmosphere (under inert gas such as argon), in vacuum or under water, the coating under normal (compressed air) atmosphere is preferred because this process costs are lower compared to the other variants.
  • inert atmosphere under inert gas such as argon
  • the coating under normal (compressed air) atmosphere is preferred because this process costs are lower compared to the other variants.
  • the speed, temperature and composition of the plasma gas are important. Gases used may be argon, nitrogen, hydrogen or helium.
  • the plasma spraying generates optimally constructed layers for cylinder liners with a non-communicating microporosity, which after the manufacturing process as
  • Oil retention volume on the smooth honed cylinder surface is used.
  • Plasma spraying is widely used industrially because of its universal applicability and has high advantages due to its advantages such as flexible material selection (process allows a wide range of sprayable materials which are easy to prepare and mix)
  • Wire spraying methods are an alternative for cylinder liner coatings, but here layers are produced which have a significantly lower porosity compared to the plasma spraying layers and thus have only a few large pores on the raceway surface after honing, which in most cases are insufficient as oil retention volumes.
  • Another disadvantage is the strong oxide formation, especially in the single-wire method (PTWA or RSW), if the layers are injected without protective gas and so can lead to increased susceptibility to corrosion. This oxide formation does not lead to a continuous oxide layer.
  • the method comprises no pretreatment of the surface of the workpiece, in particular no roughening of the surface of the workpiece.
  • the inventive method does not exclude the possibility of pretreatment, but the inventive method allows the pretreatment of
  • Workpiece surface in particular by roughening the workpiece surface, can be omitted. Failure to pre-treat the surface of the workpiece, particularly omitting the roughening of the surface leads, in addition to a high process cost savings, to an improvement in the quality of the coated surface. Furthermore, finely spindled surfaces can also be coated with the method according to the invention if a pretreatment, in particular a roughening, by means of which the finely spindled
  • the method according to the invention has various steps which can be selected from the list below, wherein the above-mentioned steps essential to the invention are mandatory:
  • Fine spindles of the surface of the cylinder liner Fine spindles of the surface of the cylinder liner.
  • this process is carried out once to apply the adhesion promoter and then applied one to five times, preferably three times to the desired layer thickness of the base material, or wherein the coating is effected by means of wire spraying,
  • Layer thickness can be varied.
  • the process of thermal coating is preferably carried out without active air conditioning.
  • the cylinder crankcase heats up during the process, i. during coating, for example, by molten plasma powder and cools down again automatically. After coating, the cylinder crankcase is approx. 100 ° C to a maximum of 140 ° C warm
  • the cylinder crankcase is upright for coating and received on the sump side.
  • the cylinder crankcase is preferably on the top deck
  • the cylinder crankcase may preferably also be received on the transmission side.
  • Another aspect of the invention relates to a cylinder crankcase with a cylinder bore having a coating.
  • the coating of the component according to the invention has a first layer which is arranged on a surface of the cylinder bore and which has a first layer
  • a second layer which comprises the base material but not the adhesion promoter, is arranged on the first layer.
  • the second layer is optional if the first layer comprises both the base material and the adhesion promoter.
  • the component according to the invention has a coating, which on the one hand the
  • Adhesive tensile values of 50 to> 70 MPa are achieved with the method according to the invention.
  • the adhesion values of a conventional process in which the adhesion of the coating by prior roughening of the surface and without Adhesive is achieved reached from 20 to> 70 MPa and even exceeded in the lower range.
  • the first and second layers are preferably applied to the workpiece surface by a thermal coating process.
  • the workpiece is applied by the method according to the invention in one of the previously described embodiments.
  • the cylinder crankcase according to the invention can be produced by the method described above.
  • Another aspect of the invention relates to a motor which is an inventive
  • Cylinder crankcase has.
  • Figure 1 is a photomicrograph of a cross-section of a coated
  • Figure 2 is a photomicrograph of a cross-section of a coated
  • Figure 3 is a photomicrograph of a cross-section of a coated
  • Figure 4 is a photomicrograph of a cross-section of a coated
  • Figure 5 is a photomicrograph of a cross section of a coated
  • Figure 6 is a photomicrograph of a cross section of a coated
  • Figures 1 to 6 show light microscope images of cross sections (longitudinal sections) of a coated workpiece 1 (cylinder bore) of a component 10 (cylinder crankcase) in different embodiments.
  • a part of the workpiece 1 is shown, on the metallic surface of which a coating 2 is arranged.
  • the coating 2 can be applied, for example, with the method according to the invention.
  • the workpiece 1 shown in Figure 1 comprises a metallic surface of a
  • the coating 2 shown in Figure 2 comprises a low alloy steel as a base material and a bonding agent which is integrated in the layer.
  • the coating 2 shown in FIG. 1 was produced by the method according to the invention by applying a powder mixture of base material and adhesion promoter to the metallic surface by means of plasma spraying. In the process, the particles of the powder mixture melted and bonded to form a uniform mixed layer 3 on the surface. Since base material and adhesion promoter were already intimately mixed before or during the process of plasma spraying, the workpiece 1 shown in FIG. 1 has a single-layer coating 2, in which the primer in the base material is homogeneously distributed in the farthest and thus forms an integrated primer.
  • FIG. 2 shows a workpiece 1 which has the same coating 2 as the workpiece 1 shown in FIG. However, the surface of the workpiece 1 is made of gray cast iron.
  • FIGS. 3 and 4 each show a light microscope photograph of a cross section (longitudinal section) of a coated workpiece 1 according to a further embodiment of the invention.
  • Figures 3 and 4 each show a workpiece 1 with a two-layer coating 2.
  • the coating 2 here comprises a mixed layer 3, which comprises a mixture of the base material and the adhesion promoter.
  • the mixed layer 3 essentially corresponds to the mixed layer 3 of the embodiment shown in FIGS. 1 and 2, but is different from it
  • a base material layer 4 is arranged, which in the Essentially consists of the base material. This is many times thicker than the mixed layer 3.
  • Preferred layer thicknesses are in Pulverplasmaspritz slaughteren in the range of 120 to 180 ⁇ , in particular in the range of 140 to 160 ⁇ and a maximum of 300 ⁇ , and in wire spraying preferably in the range of 150 to 300 ⁇ , in particular in the range of 170 to 250 ⁇ , up to a maximum of 500 ⁇ .
  • the mixed layer 3 has the function of increasing the adhesion of the coating 2, while the base material layer 4 determines the properties of the workpiece to the outside, such as the friction resistance.
  • FIGS. 3 and 4 differ in the material of the coated workpiece. While the
  • Coating 2 in FIG. 3 is arranged on a light metal alloy, for example an aluminum-containing alloy such as AISi 17 , the material of the workpiece 1 of the embodiment shown in FIG. 4 is a gray cast iron.
  • a light metal alloy for example an aluminum-containing alloy such as AISi 17
  • the material of the workpiece 1 of the embodiment shown in FIG. 4 is a gray cast iron.
  • the coatings 2 shown in FIGS. 3 and 4 can be applied by the method according to the invention.
  • a powder mixture of adhesion promoter and base material is first provided and arranged on the surface of the workpiece 1 by means of a thermal coating method, such as plasma spraying, so that a homogeneous mixed layer 3 is formed.
  • a powder which contains the base material but not the adhesion promoter is provided and likewise applied to the mixed layer 3 by a, preferably the same, thermal process.
  • the device which carries out the thermal coating method can be used with a
  • Double powder conveyor be equipped, making the same device for both
  • Coating steps can be used.
  • FIGS. 5 and 6 likewise each show a light microscope photograph of a cross section (longitudinal section) of a coated workpiece 1 according to further embodiments of FIGS.
  • Figures 5 and 6 show the same coating 2, but differ in the material of the workpiece 1, which in Figure 5, a light metal alloy (in particular AISii 7 ) and in the workpiece 1 of Figure 6 comprises a gray cast iron.
  • the coating 2 of the embodiment shown in Figures 5 and 6 is also a two-layered system
  • the primer 5 comprises the primer and contains no
  • the base material of the illustrated embodiments is a low-alloy steel such as (preferably iron-based steel having 0.05 to 1.5 wt% carbon; 0.05 to 3.5% by weight of manganese; 0.05 to 3.0% by weight of chromium; 0.01 to 1% by weight of silicon and / or 0.001 to 0.4% by weight of sulfur and / or a chromium steel having an iron base and 0.05 to 0.8% by weight of carbon; 0-3% by weight of molybdenum; 0.05 to 1 .8% by weight of manganese; 1 1.5 to 18% by weight of chromium; 0.01 to 1% by weight of silicon and / or 0.002 to 0.2% by weight of sulfur.
  • a low-alloy steel such as (preferably iron-based steel having 0.05 to 1.5 wt% carbon; 0.05 to 3.5% by weight of manganese; 0.05 to 3.0% by weight of chromium; 0.01 to 1% by weight of silicon and / or 0.001 to 0.4% by weight of sulfur and / or
  • the ratio of adhesion promoter and base material in the mixed layers 3 of FIGS. 1 to 4 preferably has a ratio of 20% by weight of adhesion promoter to 80% by weight of base material.
  • the adhesion promoter is present in a range from 10 to 80% by weight and the base material in the range from 20 to 90% by weight in the mixed layer 3.
  • the coupling agent in all embodiments shown is a mixture of molybdenum and a Ni5AI alloy (95% nickel and 5% aluminum) or a mixture of molybdenum NiAl alloy and the base material as described above.
  • nickel in the aluminum-containing alloy may be replaced by cobalt, copper or silver.
  • such layers can also be produced by means of wire-spraying methods such as LDS, PTWA and RSW by positioning the adhesion promoter in a flux-cored wire or by spraying wire-spraying layers onto a primer applied by a plasma spraying process.
  • wire-spraying methods such as LDS, PTWA and RSW

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé pour recouvrir une surface de glissement de cylindre d'un bloc-cylindres, un bloc-cylindres avec une surface de glissement de cylindre recouverte et un moteur. L'invention prévoit que le procédé comprenne les étapes suivantes consistant à : a) fournir un matériau de base pulvérulent, le promoteur d'adhésion pulvérulent, le promoteur d'adhésion comprenant un mélange constitué de molybdène (Mo) et d'un alliage contenant de l'aluminium (A(X)Al) et à b) appliquer le matériau de base et le promoteur d'adhésion sur une surface de glissement de cylindre (1) d'un bloc-cylindres (10) au moyen d'un procédé de revêtement thermique, soit en appliquant une couche (3) de mélange pulvérulent constitué du promoteur d'adhésion et du matériau de base, soit en appliquant une première couche (5) comprenant le promoteur d'adhésion sur la surface de la pièce à usiner et en appliquant ensuite une seconde couche (6) comprenant le matériau de base sur la première couche (5). L'invention concerne en outre un bloc-cylindres (10) avec une surface de glissement de cylindre (1) qui présente un revêtement (2). Il est prévu que le revêtement (2) présente - une couche (3, 5) agencée sur une surface de la pièce à usiner (1), comprenant un matériau de base et/ou un promoteur d'adhésion constitué de molybdène (Mo) et d'un alliage contenant de l'aluminium (A(X)Al) ainsi que - si la première couche ainsi que le matériau de base comprennent également le promoteur d'adhésion, une autre couche (6) agencée sur la couche (5) qui comprend le matériau de base mais pas le promoteur d'adhésion.
EP16730300.7A 2015-07-23 2016-06-08 Procédé pour recouvrir une surface de glissement de cylindre d'un bloc-cylindres, bloc-cylindres avec une surface de glissement de cylindre recouverte et moteur Active EP3325685B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015213896.8A DE102015213896A1 (de) 2015-07-23 2015-07-23 Verfahren zur Beschichtung eines metallischen Werkzeugs und Bauteil
PCT/EP2016/063060 WO2017012769A1 (fr) 2015-07-23 2016-06-08 Procédé pour recouvrir une surface de glissement de cylindre d'un bloc-cylindres, bloc-cylindres avec une surface de glissement de cylindre recouverte et moteur

Publications (2)

Publication Number Publication Date
EP3325685A1 true EP3325685A1 (fr) 2018-05-30
EP3325685B1 EP3325685B1 (fr) 2020-04-08

Family

ID=56137290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16730300.7A Active EP3325685B1 (fr) 2015-07-23 2016-06-08 Procédé pour recouvrir une surface de glissement de cylindre d'un bloc-cylindres, bloc-cylindres avec une surface de glissement de cylindre recouverte et moteur

Country Status (4)

Country Link
EP (1) EP3325685B1 (fr)
CN (1) CN107810290B (fr)
DE (1) DE102015213896A1 (fr)
WO (1) WO2017012769A1 (fr)

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DE102017208000A1 (de) * 2017-05-11 2018-11-15 Mahle International Gmbh Verfahren zur Herstellung eines Motorblocks
DE102018126876A1 (de) 2018-10-29 2020-04-30 Bayerische Motoren Werke Aktiengesellschaft Kurbelgehäuse sowie Verfahren zum Herstellen eines Kurbelgehäuses
CN109457211B (zh) * 2018-12-21 2020-08-28 西安交通大学 一种润滑相高度弥散分布的耐磨减摩涂层制备方法
DE102019005421A1 (de) * 2019-08-01 2020-08-06 Daimler Ag Verfahren zum Schutz gespritzter Oberflächenbeschichtungen
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DE102015213896A1 (de) 2017-01-26

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