EP2880193B1 - Procédé de fabrication d'une chemise de cylindre - Google Patents

Procédé de fabrication d'une chemise de cylindre Download PDF

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Publication number
EP2880193B1
EP2880193B1 EP13720893.0A EP13720893A EP2880193B1 EP 2880193 B1 EP2880193 B1 EP 2880193B1 EP 13720893 A EP13720893 A EP 13720893A EP 2880193 B1 EP2880193 B1 EP 2880193B1
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EP
European Patent Office
Prior art keywords
cylinder liner
layer
cylinder
iron
liner formed
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EP13720893.0A
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German (de)
English (en)
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EP2880193A1 (fr
Inventor
Peter Goedel
Volker Scherer
Michael Buchmann
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Federal Mogul Burscheid GmbH
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Federal Mogul Burscheid GmbH
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • C23C4/185—Separation of the coating from the substrate
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/123—Spraying molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0009—Cylinders, pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
    • B22D21/04—Casting aluminium or magnesium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/003—Moulding by spraying metal on a surface
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • 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
    • C23C4/06—Metallic material
    • C23C4/067—Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
    • 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
    • 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
    • C23C4/18—After-treatment
    • 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 
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/4927—Cylinder, cylinder head or engine valve sleeve making
    • Y10T29/49272—Cylinder, cylinder head or engine valve sleeve making with liner, coating, or sleeve

Definitions

  • the present invention relates to a method for producing a particularly thermally sprayed, thin-walled cylinder liner for insertion into a cylinder crankcase.
  • cylinder liners in internal combustion engines makes it possible to use for the engine block another material, which meets only the relevant requirements.
  • the cylinder liner on the other hand, can be optimized to meet wear resistance and low friction requirements. Since the material content of the liner is relatively small compared to the engine block, higher quality and therefore more expensive materials can be used here, without being too detrimental to the overall cost.
  • the prior art discloses methods for producing light metal cylinder liners for thermal joining in cylinder crankcases made of iron or light metal known (See, for example, the brochure "Overhaul of Aluminum Engines” by MSI Motor Service International GmbH, Edition 03/99). Such bushings are produced, for example, via a process of spray compacting with subsequent mechanical processing. However, these bushings sold under the brand name Alusil® have the disadvantage of a moderate wear resistance on the cylinder surface. Furthermore, a complex process of the exposure of silicon crystals during the finishing of the cylinder running surfaces is necessary here.
  • Aluminum-silicon cylinder liners or cylinder running surfaces made of block alloys (Alusil®, Lokasil®) marketed under the brand name Silitec® have a high thermal conductivity.
  • the wear resistance of the respective cylinder surfaces is determined by the present after honing silicon particles.
  • a maximum silicon content of about 20% can be achieved in terms of process technology.
  • spray-compacted materials higher silicon contents can be achieved; Due to the process, however, this leads to increasing component costs. Due to the high mechanical load of new engines, such as gasoline engines with gasoline direct injection or modern diesel engines, however, the mechanical strength values with conventional aluminum-silicon alloys are borderline.
  • slip-fit liners made of gray cast iron are known as cylinder liners.
  • the liners are manufactured mechanically from centrifuged gray cast iron pipes. To achieve the required surface roughness and cylindrical shape of the outer diameter is ground.
  • To install cast iron bushings it is necessary that the bush has a larger diameter at room temperature than the bore of the cylinder crankcase. Thereafter, the diameter of at least one of the two joining bodies by thermal expansion to change such that the socket can be safely inserted into the cylinder crankcase. This is generally done by heating the cylinder crankcase, as due to the low thermal expansion coefficient of gray cast iron cooling the socket alone is not sufficient. This makes the insertion of gray cast iron bushings consuming and expensive.
  • EP1949401 (A2 ) discloses a method for coating a cylinder bore of aluminum engine blocks, in which an iron alloy is applied internally to the cylinder inner surface by thermal spraying.
  • German patent application with the publication number DE102008013813 (A1 10 shows a method of manufacturing a cylinder crankcase, comprising the steps of: manufacturing a core, inserting the core into a casting tool, casting the cylinder crankcase under elevated pressure and using a light metal, releasing the core from the cast cylinder crankcase, and coating a cylinder wall by a thermal spraying process.
  • German patent application no. DE 102008053642 (A1 ) relates to a thermally sprayed cylinder liner for internal combustion engines, which is composed essentially of an iron-based alloy having a carbon content of 0.8 to 0.9 percent by weight and friction-reducing fillers of graphite, molybdenum disulfide or tungsten disulfide dispersed therein.
  • the patent document DE102010053029 A1 discloses a method for producing a hollow cylindrical component consisting of at least two metal layers, wherein a functional layer and then a supporting layer are respectively applied by spray compacting to a tubular substrate to produce a hollow cylindrical component consisting of at least two metal layers, and then the substrate is removed Substrate was made using a metal that is part of the functional layer, and is removed by machining.
  • cylinder reinforcements are layers sprayed onto the cylinder surface.
  • DE 197 33 205 A1 become a coating of a cylinder surface an iron, aluminum or magnesium based reciprocating piston engine having a hypereutectic aluminum / silicon alloy and / or an aluminum / silicon composite and a process for producing this coating.
  • the coating is here applied directly to the inner wall of the cylinder bore in the engine block.
  • a rotating about the central axis of the cylinder bore inner burner which is constructed on a rotating unit, inserted into the cylinder bore and moved axially.
  • the inner burner is inserted into the cylinder bore of the rotating crankcase and axially moved along the center axis of the cylinder bore to spray the coating onto the cylinder wall.
  • the cylinder surface generally has to be elaborately prepared before coating, for example by roughening by means of high-pressure water jets, or by introducing a defined profiling with undercuts via a turning process.
  • a method of manufacturing a cylinder liner comprising the features of claim 1. Preferred embodiments are described in the dependent claims.
  • the method of making a cylinder liner comprises: thermally spraying a first material onto a molded article to form a wear and corrosion resistant first layer, the first molded material comprising at least 67% iron, Fe; maximum 3% carbon, C; between 0 and a maximum of 20% chromium, Cr; between 0 and a maximum of 10% nickel, Ni; and thermally spraying a second material to form a second outer layer on the first inner layer, wherein the second molded material comprises aluminum, an aluminum alloy, or a lightweight and ferrous multi-element material.
  • Fig. 1 shows a section of a cylinder liner according to an embodiment of the invention.
  • the invention proposes a method for producing a cylinder liner by means of thermal spraying.
  • a first material for forming a first, inner layer is provided on a shaped body, which as essential elements at least 67% Fe and max. 3.0% C has.
  • a shaped body which as essential elements at least 67% Fe and max. 3.0% C has.
  • up to 20% Cr and / or 10% nickel can be alloyed.
  • the first material contains at least 70% Fe, more preferably at least 80% Fe, even more preferably at least 90% Fe and above, even even more preferably at least 95% Fe.
  • the carbon content should not exceed 3%, otherwise the material will be too hard and brittle, ie difficult to work. There is a risk of layer chipping or cracking.
  • the carbon content is therefore preferably ⁇ 2%, and more preferably ⁇ 1%.
  • the material can continue between 0 and max. 30% Cr and between 0 and max. Contain 10% Ni.
  • These components are usually used to increase the corrosion resistance, but also mean higher material costs or a higher manufacturing cost in the finishing of the tread e.g. while honing.
  • Preferred ranges for these components are between 0 and 19%, more preferably between 0 and 5%, more preferably between 0 and 3%, even more preferably between 0 and 1% for Cr.
  • a range is preferably between 0 and 5%, more preferably between 0 and 3% and even more preferably between 0 and 2%, even more preferably between 0 and 1%.
  • the material is present before the coating process as a solid or flux cored wire and is by means of known wire coating methods, such as by means of electric arc wire spraying or wire flame spraying u.ä. melted and applied to a rotating moldings.
  • the material is applied to the outer surface of the rotating molded body, which has a substantially cylindrical shape.
  • the further shape of the shaped body in particular its dimensions is limited only by the intended application.
  • the outer diameter of the shaped body with respect to the different diameters of cylinder liners in the range of about 20 mm to about 1000 mm, preferably for the automotive sector between 60 mm to about 100 mm.
  • the length of the molding is not upwards limited, since a desired length of the cylinder liner can be prepared by reworking a first workpiece obtained.
  • the molded body only has to have the length of the desired cylinder liner and can therefore be from about 50 mm to about 5 m.
  • the length of the molded body of about 100 mm to about 400 mm, wherein on a molding 2 to 4 cylinder liners can be made at once.
  • the molded article may be made of any material that remains dimensionally stable under the applied process conditions, i.
  • the temperatures of the molten and applied material can withstand, for example, at iron temperatures of about 1400 ° C and a detachment of the first, inner layer after application allows.
  • the outer surface of the molded body can be provided with a thin, inorganic separating layer.
  • a second, outer layer is applied to the first, inner layer, which may still be on the molded article or has previously been removed from the molded article, i. in the form of a sleeve is present as a free body.
  • the outside diameter of the first layer is "as sprayed", i. it is not machined before the application of the second layer.
  • the same thermal spraying method as in the first step can be used or another. This is chosen depending on the material used and the other prevailing conditions in the production.
  • the material applied in the second step is generally chosen such that it has a thermal expansion coefficient that is as similar as possible to that of the cylinder crankcase.
  • the material may, for example, be selected from aluminum or an aluminum alloy of Al and Si or Al and Mn or Al and Mg or a multi-element layer of an aluminum alloy and iron. This is particularly advantageous because such a combination is distributed when applying selectively over the surface, which in terms of a subsequent processing step, in particular Sanding, a lower surface roughness provides.
  • the method according to the invention can be layers having a porosity of ⁇ 8 vol .-%, preferably ⁇ 5 vol .-%, more preferably ⁇ 3 vol .-% and pore sizes of ⁇ 15 microns, preferably ⁇ 10 microns, more preferably ⁇ 8 achieve ⁇ m. This is significantly improved in contrast to internal coatings of the prior art, which provide a porosity of about> 10 vol .-% and a pore size of about 20 microns.
  • the product obtained in this way can be left on the shaped body before further processing steps or be separated from the shaped body.
  • the outer surface of the outer, second layer which is still rough after spraying is processed by grinding or turning, whereby the desired outer diameter, the necessary cylindricity and the required surface roughness of the cylinder liner produced by the method according to the invention are achieved.
  • the roughness depth (Rz) of the outer lateral surface to be produced with it is normally in the range of at most approximately 50 ⁇ m, preferably at most approximately 30 ⁇ m, more preferably at maximum 10 ⁇ m.
  • the desired surface roughness can each be determined by a suitable processing method, such as e.g. Fine turning can be achieved. If higher demands are placed on the cylindricity, then the outer circumferential surface can also be ground.
  • the desired total length of the cylinder liner to be used in an engine can be made by turning, milling or laser cutting from the produced cylinder liner.
  • the first inner layer of the cylinder liner produced by the method according to the invention has a layer thickness of about 0.2 to 2.0 mm, preferably from 0.2 to 1 mm, more preferably from 0.2 to 0.8 mm
  • the second The outer layer of the cylinder liner produced by the method according to the invention has, after application, a layer thickness of about 0.2 to 2 mm, preferably 0.3 to 2.0 mm, more preferably 0.3 to 1.0 mm.
  • the layer thickness of the outer layer is generally reduced by about 0.1 mm to about 0.5 mm.
  • the cylinder liner produced by the method according to the invention has a total wall thickness of 0.4 to a maximum of about 10 mm, preferably from about 1 mm to 2 or 3 mm.
  • the method further comprises providing the cylinder liner produced by the method according to the invention with a chamfer on one or both axial ends on the outside diameter and / or on the inside diameter.
  • the method further comprises recesses and / or overflow channels provided on the bush jacket, which can be produced by machining with a geometrically determined cutting edge or thermal laser cutting.
  • the cylinder liner produced by the method according to the invention can optionally be provided with pulsation holes or with a collar at one end.
  • the Pulsationsbohronne can be produced either by milling or by cutting with a laser, the federal government, for example, are produced by a turning operation.
  • the method further comprises honing the inside of the formed cylinder liner after joining into the engine block, whereby the thickness of the first inner layer can be reduced up to 0.05 mm, this better To achieve thermal conductivity.
  • a cylinder liner made by the method described above.
  • the cylinder liner produced by the method according to the invention is used after completion and processing in a cylinder bore of an engine. This can be done, such as in the automotive field according to conventional methods by the engine block (aluminum) is heated to a temperature of about 250 ° C, and the sleeve is inserted into the cylinder bores.
  • the socket according to the invention can also be used in an unheated engine block due to its intrinsic properties, by itself this is previously cooled, for example, to temperatures of about -20 ° C, or -30 ° C or -40 ° C up to -. 78.5 ° C (solid carbon dioxide) or preferably in liquid nitrogen to temperatures of about -20 ° C, etc. up to -196 ° C and then transferred to the cylinder bore. This is not possible with a gray cast iron bush, as their coefficient of expansion is too low.
  • the socket of the invention facilitates handling and reduces the cost and expense of inserting the socket.
  • the first layer was separated from the molded article, clamped between two conical receptacles and also provided with a 1.0 mm thick AlSi12 layer in a second coating system by means of arc wire spraying.
  • the 3.2 mm solid wires were fed into the coating unit at a feed rate of 1.2 m / min and melted at 30V or 650A.
  • the 1.0 mm thick layer is applied in 4 coating webs at a speed of rotation of 150 rpm. applied.
  • the layer structure of both layers was analyzed by means of metallographic investigations, the hardness of the St0.8 layer was 400 HV1, the AlSi12 layer was 100HV1. The porosity in both layers was ⁇ 3%, the maximum pore size was 10 ⁇ m.
  • the completely injection-molded, cylindrical component with an inner diameter of 80 mm, a total length of 180 mm and a wall thickness of 1.8 mm was removed from the coating system, clamped in a lathe and cylindrically over-turned on the outer shell.
  • the surface roughness was Ra ⁇ 6 microns
  • the bushing was rotated to an outer diameter of 83.6 mm.
  • the cylinder liner was cut to 142 mm at both ends by means of turning, or chamfered externally and internally with a 30 ° chamfer.

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

Claims (9)

  1. Procédé de fabrication d'une chemise de cylindre, comprenant:
    - la projection thermique d'un premier matériau sur un corps moulé afin de former une première couche résistante à l'usure et à la corrosion, le premier matériau appliqué par projection étant constitué de :
    au moins 67 % de fer, Fe :
    au maximum 3 % de carbone, C ;
    entre 0 et au maximum 20 % de chrome, Cr ;
    entre 0 et au maximum 10 % de nickel, Ni ;
    le reste étant du Fe, la teneur en fer du premier matériau ne dépassant pas 99 %, et des impuretés inévitables ;
    - la projection thermique d'un deuxième matériau afin de former une deuxième couche extérieure sur la première couche intérieure, le deuxième matériau appliqué par projection comprenant :
    de l'aluminium, un alliage d'aluminium ou un matériau à éléments multiples composé d'un alliage d'aluminium et de fer ; et
    - le retrait du corps moulé pour libérer la chemise de cylindre ainsi formée, l'étape de retrait étant réalisée avant ou après l'étape de la projection thermique du deuxième matériau.
  2. Procédé selon la revendication 1, comprenant en outre :
    - l'usinage de la couche extérieure par rectification, tournage fin ou tournage très fin.
  3. Procédé selon la revendication 1 ou 2, la surface extérieure présentant une rugosité de surface qui est inférieure ou égale à 50 µm, de préférence à 10 µm.
  4. Procédé selon l'une des revendications précédentes, chacune desdites couches présentant une épaisseur de couche comprise entre 0,05 et 2,0 mm.
  5. Procédé selon l'une des revendications précédentes, la chemise de cylindre ainsi formée présentant une épaisseur de paroi totale inférieure ou égale à 4,0 mm, de préférence comprise entre 0,7 et 2,0 mm.
  6. Procédé selon l'une des revendications précédentes, comprenant en outre :
    - la réalisation d'un chanfrein sur le diamètre extérieur de la chemise de cylindre ainsi formée.
  7. Procédé selon l'une des revendications précédentes, comprenant en outre :
    - la réalisation d'un chanfrein sur le diamètre intérieur de la chemise de cylindre ainsi formée.
  8. Procédé selon l'une des revendications précédentes, comprenant en outre :
    - la réalisation d'évidements sur face inférieure de ladite chemise et/ou de canaux de trop-plein par fraisage ou découpage thermique au laser.
  9. Procédé selon l'une des revendications précédentes, comprenant en outre :
    - le pierrage de la face intérieure de la chemise de cylindre ainsi formée.
EP13720893.0A 2012-08-03 2013-04-29 Procédé de fabrication d'une chemise de cylindre Active EP2880193B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13720893T PL2880193T3 (pl) 2012-08-03 2013-04-29 Sposób wytwarzania tulei cylindrowej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012015405.4A DE102012015405B4 (de) 2012-08-03 2012-08-03 Zylinderlaufbuchse und Verfahren zu deren Herstellung
PCT/EP2013/058857 WO2014019723A1 (fr) 2012-08-03 2013-04-29 Chemise de cylindre et procédé de fabrication de ladite chemise de cylindre

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EP2880193A1 EP2880193A1 (fr) 2015-06-10
EP2880193B1 true EP2880193B1 (fr) 2018-02-21

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US (1) US10017845B2 (fr)
EP (1) EP2880193B1 (fr)
JP (1) JP6329146B2 (fr)
KR (1) KR102048454B1 (fr)
CN (2) CN110306146A (fr)
BR (1) BR112014027035B1 (fr)
DE (1) DE102012015405B4 (fr)
PL (1) PL2880193T3 (fr)
RU (1) RU2627526C2 (fr)
WO (1) WO2014019723A1 (fr)

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Publication number Publication date
DE102012015405A1 (de) 2014-02-06
WO2014019723A1 (fr) 2014-02-06
DE102012015405B4 (de) 2014-07-03
CN104321457A (zh) 2015-01-28
JP2015526596A (ja) 2015-09-10
KR102048454B1 (ko) 2020-01-08
EP2880193A1 (fr) 2015-06-10
JP6329146B2 (ja) 2018-05-23
RU2015104564A (ru) 2016-09-20
US10017845B2 (en) 2018-07-10
BR112014027035A2 (pt) 2017-06-27
RU2627526C2 (ru) 2017-08-08
BR112014027035B1 (pt) 2020-11-10
US20150218687A1 (en) 2015-08-06
KR20150038580A (ko) 2015-04-08
PL2880193T3 (pl) 2018-08-31
CN110306146A (zh) 2019-10-08

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