EP2110465B1 - Procédé destiné à la fabrication d'un composant métallique ainsi que composant fabriqué de cette manière - Google Patents

Procédé destiné à la fabrication d'un composant métallique ainsi que composant fabriqué de cette manière Download PDF

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Publication number
EP2110465B1
EP2110465B1 EP09157727.0A EP09157727A EP2110465B1 EP 2110465 B1 EP2110465 B1 EP 2110465B1 EP 09157727 A EP09157727 A EP 09157727A EP 2110465 B1 EP2110465 B1 EP 2110465B1
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EP
European Patent Office
Prior art keywords
base body
aluminum
coating
component
cast
Prior art date
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Active
Application number
EP09157727.0A
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German (de)
English (en)
Other versions
EP2110465A2 (fr
EP2110465A3 (fr
Inventor
Dr. Stephan Beer
Jürgen Niehues
Dr. Herbert Möding
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.)
KS Huayu Alutech GmbH
Original Assignee
KS Huayu Alutech GmbH
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Publication date
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Application filed by KS Huayu Alutech GmbH filed Critical KS Huayu Alutech GmbH
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Publication of EP2110465A3 publication Critical patent/EP2110465A3/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • 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
    • B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/04—Tubes; Rings; Hollow bodies
    • 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 
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/42—Electroplating: Baths therefor from solutions of light metals
    • C25D3/44—Aluminium

Definitions

  • the invention relates to a method for producing a metallic component, in which a base body is provided with an aluminum coating and the coated base body is cast with an aluminum alloy, and a component with a base body, on the outer surface of which an aluminum layer is formed, the base body having a Cast aluminum alloy.
  • the coatings of the base body to be cast in serve a better adhesion of the base body to the surrounding casting.
  • cast cylinder liners which form the running surfaces for the cylinders, or to slide bearings in aluminum cylinder crankcases.
  • the cylinder liners are made, for example, from a heavy-duty iron-based alloy, such as lamellar gray cast iron.
  • the layers can be applied, for example, by finishing or thermal spraying.
  • the JP 59-030465 proposed to first coat a cast iron bushing with nickel or copper and then pour it into an aluminum crankcase. This should result in a fusion of the surface coating with the aluminum alloy.
  • an adhesion-promoting layer on a cast body which can be, for example, a cylinder liner made of gray cast iron.
  • the adhesion promoter layer consists of galvanically applied light metal, which is metallurgically bonded to the cast body by means of diffusion annealing.
  • a cylinder liner which is thermally coated from the outside by spraying.
  • at least two axially superimposed different layers are applied.
  • a layer with good heat conductivity is applied in the upper area, while the lower section is provided with a layer with poor heat conductivity. This is intended to improve the connection to the base body when the socket is cast around.
  • the bond between the bonding layer and the cast material is improved compared to a purely mechanical clamping, but the problem of the bond between the cylinder liner and the bonding layer remains, since in this area no metallurgical bond is produced, but only a mechanical one Parenthesis exists.
  • This object is achieved according to the invention by a method in which the aluminum coating is applied galvanically to the base body, the surface of which has a clamping structure with undercuts, and that a nickel coating is applied to the base body before the aluminum coating is applied galvanically, and by a coating produced in this way Component in which the surface of the base body has a clamping structure with undercuts and a galvanically applied nickel coating. This ensures that the aluminum coating deposited on the base body forms a strong metallurgical bond with the cast aluminum alloy and that the aluminum coating is bonded well to the base body.
  • undercut structures can also be coated uniformly and completely, for example base bodies with clamping structures or rough cast bushings which are difficult to access in spraying processes. It has been found that the bond between nickel and gray cast iron, for example, is more stable than the bond between aluminum and gray cast iron. In addition, the bond between the aluminum coating and the nickel layer is also more stable and better, so that overall the strength of the connection to the socket is increased.
  • the aluminum coating can advantageously be an aluminum-based alloy coating. This enables the melting point of the aluminum layer to be reduced during the subsequent encapsulation, so that the bond is improved again.
  • the aluminum coating is applied with a thickness in the range from 5 to 100 ⁇ m, preferably from 10 to 60 ⁇ m and in particular from 20 to 40 ⁇ m. In experiments, such layer thicknesses have been found to be sufficient to improve the bond both to the casting material and to the base body.
  • the coated base body is cast around with an aluminum-based alloy.
  • an AlSi9CU3 alloy can be used here.
  • the base body can advantageously be cleaned prior to the galvanic application of the aluminum coating to the base body. This can be done mechanically, in particular by blasting and / or chemically, in particular by applying a flux. This additionally improves the adhesion of the coating to the base body.
  • undercut structures can be coated evenly and completely, for example base bodies with clamping structures or rough cast bushings.
  • the base body is preferably produced from an iron-based alloy, in particular from lamellar gray cast iron (GGL).
  • GGL lamellar gray cast iron
  • the nickel coating is preferably applied to the base body with a thickness> 5 ⁇ m, in particular in the range between 1 and 2 ⁇ m. It has been found that the bond between nickel and gray cast iron, for example, is more stable than the bond between aluminum and gray cast iron. In addition, the bond between the aluminum coating and the nickel layer is also more stable and better, so that overall the strength of the connection to the socket is increased.
  • the component is preferably a cylinder crankcase or a cylinder crankcase lower part, which is also referred to as a bearing crossmember or bedplate.
  • the method according to the invention can be used particularly advantageously for these components.
  • the base body is a cylinder liner. This makes it possible to use heavy-duty cylinder liners in aluminum crankcases have low weight, to create and to fix the socket so that loosening is reliably prevented.
  • a micrograph of a component produced by the method according to the invention is shown in the figure.
  • the component 1 shown consists of a base body 2 in the form of a cast iron cylinder liner, which was first chemically cleaned using a flux. A nickel layer 3 was then applied galvanically to the cleaned surface. The thickness of this nickel layer 3 is approximately 5 ⁇ m. An aluminum layer 4 with a thickness of approximately 25 ⁇ m was then applied galvanically to this nickel layer 3 in a galvanic bath. The cylinder liner 2 prepared in this way was then cast with an aluminum-silicon alloy 5 made of AlSi9CU3 in a die-casting process to produce a cylinder crankcase 1.
  • a component was created that is also suitable for use in high-performance motors with high thermal and mechanical loads. A loosening of the socket in the casting can be excluded.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Claims (12)

  1. Procédé de fabrication d'un composant métallique (1), dans lequel un corps de base (2) est pourvu d'un revêtement en aluminium (4) et un alliage d'aluminium est coulé autour du corps de base (2) revêtu, caractérisé en ce que le revêtement en aluminium (4) est appliqué galvaniquement sur le corps de base (2) dont la surface présente une structure de serrage avec des contre-dépouilles, et qu'un revêtement en nickel (3) est appliqué galvaniquement sur le corps de base (2) avant l'application galvanique du revêtement en aluminium (4).
  2. Procédé selon la revendication 1, caractérisé en ce que le revêtement en aluminium (4) est un revêtement en alliage à base d'aluminium.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le revêtement en aluminium (4) est appliqué avec une épaisseur dans la plage de 5 à 100 µm, de préférence de 10 à 60 µm et en particulier de 20 à 40 µm.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un alliage à base d'aluminium (5) est coulé autour du corps de base revêtu (2).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de base (2) est nettoyé avant l'application galvanique du revêtement en aluminium (4) sur le corps de base (2).
  6. Procédé selon la revendication 5, caractérisé en ce que le corps de base (2) est nettoyé mécaniquement notamment par grenaillage et/ou chimiquement notamment par application d'un flux.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps de base (2) est fabriqué en alliage à base de fer, notamment en fonte grise lamellaire (GGL).
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le revêtement en nickel (3) est appliqué sur le corps de base (2) avec une épaisseur >5 µm.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le revêtement en nickel (3) est appliqué sur le corps de base (2) avec une épaisseur dans la plage entre 1 et 2 µm.
  10. Composant avec un corps de base (2), sur la surface extérieure duquel est formée une couche d'aluminium (4), un alliage d'aluminium étant coulé autour du corps de base (2), caractérisé en ce que la surface du corps de base (2) présente une structure de serrage avec des contre-dépouilles et un revêtement en nickel (3) appliqué galvaniquement et le composant (1) est fabriqué selon un procédé selon l'une quelconque des revendications 1 à 9.
  11. Composant selon la revendication 10, caractérisé en ce que le composant (1) est un carter de cylindre ou une partie inférieure de carter de cylindre.
  12. Composant selon la revendication 11, caractérisé en ce que le corps de base (2) est une chemise de cylindre.
EP09157727.0A 2008-04-17 2009-04-09 Procédé destiné à la fabrication d'un composant métallique ainsi que composant fabriqué de cette manière Active EP2110465B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008019206 2008-04-17
DE102008048109.2A DE102008048109B4 (de) 2008-04-17 2008-09-19 Verfahren zur Herstellung eines metallischen Bauteils und Verwendung eines Zylinderteils als Grundkörper zur Durchführung des Verfahrens

Publications (3)

Publication Number Publication Date
EP2110465A2 EP2110465A2 (fr) 2009-10-21
EP2110465A3 EP2110465A3 (fr) 2015-08-19
EP2110465B1 true EP2110465B1 (fr) 2020-04-29

Family

ID=41016873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09157727.0A Active EP2110465B1 (fr) 2008-04-17 2009-04-09 Procédé destiné à la fabrication d'un composant métallique ainsi que composant fabriqué de cette manière

Country Status (4)

Country Link
EP (1) EP2110465B1 (fr)
DE (1) DE102008048109B4 (fr)
ES (1) ES2798004T3 (fr)
HU (1) HUE050304T2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010055162A1 (de) * 2010-12-18 2012-06-21 Mahle International Gmbh Beschichtung sowie beschichtetes Eingussbauteil
BR102014022261A2 (pt) 2014-09-09 2016-04-26 Mahle Int Gmbh camisa de cilindro para engastamento em um bloco de motor e bloco de motor
DE102020205456A1 (de) 2020-04-29 2021-11-04 Volkswagen Aktiengesellschaft Verfahren, Vorrichtung und Computerprogramm zum Erzeugen von Qualitätsinformation über ein Beschichtungsprofil, Verfahren, Vorrichtung und Computerprogramm zum Erzeugen einer Datenbank, Überwachungsgerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154900A (en) * 1976-05-14 1979-05-15 Taiho Kogyo Co., Ltd. Composite material of ferrous cladding material and aluminum cast matrix and method for producing the same
DE19750687A1 (de) * 1997-11-15 1999-05-20 Ks Aluminium Technologie Ag Verfahren zum Eingießen von Eingußteilen
EP0919715A2 (fr) * 1997-12-01 1999-06-02 KS Aluminium Technologie Aktiengesellschaft Chemise cylindre
EP1308227A1 (fr) * 2001-10-31 2003-05-07 DaimlerChrysler AG Procédé de surmoulage d'un insert métallique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741875A (en) * 1980-08-25 1982-03-09 Mazda Motor Corp Production of piston made of aluminum alloy
JPS5930465A (ja) 1982-08-12 1984-02-18 Yanmar Diesel Engine Co Ltd アルミニウム合金による鉄系材料の鋳包み方法
DE3804303A1 (de) * 1988-02-12 1989-08-24 Studiengesellschaft Kohle Mbh Verfahren zur haftvermittlung zwischen metallwerkstoffen und glavanischen aluminiumschichten und hierbei eingesetzte nichtwaessrige elektrolyte
DE19937934A1 (de) 1999-08-11 2001-02-15 Bayerische Motoren Werke Ag Zylinderkurbelgehäuse, Verfahren zur Herstellung der Zylinderlaufbuchsen dafür und Verfahren zur Herstellung des Zylinderkurbelgehäuses mit diesen Zylinderlaufbuchsen
AU2003208246A1 (en) * 2002-03-18 2003-09-29 Karl Merz Method and device for the alfin processing of components
EP1688517B1 (fr) * 2005-02-03 2011-01-12 Ford-Werke GmbH Procédé de fabrication d'une couche métallique d'adhésion sur une pièce coulée
JP4512002B2 (ja) * 2005-07-08 2010-07-28 トヨタ自動車株式会社 シリンダライナ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154900A (en) * 1976-05-14 1979-05-15 Taiho Kogyo Co., Ltd. Composite material of ferrous cladding material and aluminum cast matrix and method for producing the same
DE19750687A1 (de) * 1997-11-15 1999-05-20 Ks Aluminium Technologie Ag Verfahren zum Eingießen von Eingußteilen
EP0919715A2 (fr) * 1997-12-01 1999-06-02 KS Aluminium Technologie Aktiengesellschaft Chemise cylindre
EP1308227A1 (fr) * 2001-10-31 2003-05-07 DaimlerChrysler AG Procédé de surmoulage d'un insert métallique

Also Published As

Publication number Publication date
ES2798004T3 (es) 2020-12-04
DE102008048109B4 (de) 2015-01-29
HUE050304T2 (hu) 2020-11-30
EP2110465A2 (fr) 2009-10-21
EP2110465A3 (fr) 2015-08-19
DE102008048109A1 (de) 2009-10-22

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