EP1041173B1 - Bloc-cylindres en métal léger, méthode pour sa fabrication et dispositif pour la mise en oeuvre de cette méthode - Google Patents

Bloc-cylindres en métal léger, méthode pour sa fabrication et dispositif pour la mise en oeuvre de cette méthode Download PDF

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EP1041173B1
EP1041173B1 EP00105126A EP00105126A EP1041173B1 EP 1041173 B1 EP1041173 B1 EP 1041173B1 EP 00105126 A EP00105126 A EP 00105126A EP 00105126 A EP00105126 A EP 00105126A EP 1041173 B1 EP1041173 B1 EP 1041173B1
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Prior art keywords
laser beam
powder
alloyed
aluminum
cylinder block
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Expired - Lifetime
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EP00105126A
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German (de)
English (en)
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EP1041173A1 (fr
Inventor
Franz Josef Dr. Feikus
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Hydro Aluminium Deutschland GmbH
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Hydro Aluminium Deutschland GmbH
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • 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
    • 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
    • C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to 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
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating 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
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • C23C4/16—Wires; Tubes
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • 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

Definitions

  • the invention relates to a light metal cylinder block with at least a wear-resistant and tribologically optimized Cylinder tread, comprising a light metal matrix alloy and a carbide-containing powder material that is used as a finely dispersed, Primary silicon excretions contain surface layer is present on the light metal matrix.
  • EP 0 837 152 A1 (Bayerische Motoren Werke AG) is a method for coating an existing aluminum alloy Known component of an internal combustion engine. In doing so, a Laser beam directed so that it is not directly on the surface of the component to be coated, but previously on one Powder jet hits. Because of the energy of the laser beam Powder completely transferred from the solid to the liquid phase, so that when it hits the component surface in shape fine droplets are deposited on it as layer material, which partially solidify amorphously due to the solidification conditions.
  • silicon crystals should be used be produced in the order of 1 to 5 microns.
  • the substrate surface is therefore very hot and can therefore heat the impacting Si melt not dissipate quickly enough so that no crystalline Phase and no primary crystals but amorphous phases.
  • a applied layer thickness of 3 mm to achieve a smooth, flat surface of the layer material removed about 50% (Column 6, lines 10 to 15). This means a high loss of stock, to which is still an unused edge zone by a high Waviness of the droplet applied material as disadvantageous must be added.
  • EP 0 411 322 A1 describes a method for producing more wear-resistant Surfaces on components made of an AlSi alloy described, which is based on the aforementioned EP 0 221 276, however, the layer prior to laser melting a vaccine (Nucleating agent) added for primary silicon crystals becomes.
  • the following substances are used as inoculants or nucleating agents called: silicon nitride, silicon carbide, titanium carbide, titanium nitride, Boron carbide and titanium boride.
  • the coating produced in the form of screen printing technology as a peel-off film applied the surface of the component in question.
  • the fat the layer can preferably be 200 ⁇ m and the melting depth 400 up to 600 ⁇ m. It becomes a line-focused laser beam used in an inert atmosphere to melt down with a melting depth of 400 ⁇ m.
  • the silicon content in the alloyed zone was 25% in the example a nickel content of 8% (hardness above 250 HV).
  • EP 0 622 476 A1 describes a metal substrate with a laser-induced one MMC coating known.
  • the MMC layer has one Layer thickness between 200 ⁇ m and 3 mm and contains homogeneous distributed SIC particles, preferably up to 40 percent by weight SiC as homogeneously distributed SIC particles in the MMC layer are included.
  • the powder mixture is included for production. SiC powder and pre-alloyed AlSi powder in one laser beam heated, the for the preparation of a homogeneous Alloy from the powder mixture required heat content the powder impinging on the substrate is brought about. Products with hard metal materials such as SiC have a very high Hardness that is unfavorable for the wear behavior of the piston rings are.
  • the processing is very complex because the top layer of the ceramic particles has to be removed, to achieve a functional, splinter-free tread.
  • the object of the present invention is therefore to develop a light metal cylinder block with at least one wear-resistant tribologically loadable running surface, in which the surface layer consists of 5 to 20% finely dispersed primary silicon, which has a small edge zone width in the transition to the matrix alloy and which is free of defects in the transition zone and is oxide inclusions.
  • the process used to manufacture the light metal cylinder block should manage with fewer process steps, and chemical post-processing should be completely dispensed with.
  • a device for coating the interior of a Light metal engine block made of aluminum or a magnesium alloy described, with a probe in the cylinder of a Engine blocks are sunk and at the same time pure silicon powder can be supplied.
  • the probe has a powder feed and a laser beam device.
  • the purpose of this device is to alloy hard particles in the form of silicon over a spiral over the tread rotating laser beam with silicon particles fed in parallel respectively. So that the laser energy is spread over a wide range
  • the laser beam has a track on the matrix surface a linear focus with a track width of preferably 2 to 4 mm. Compared to one with point laser generated surface does not form a wavy at the focus Profile, but a flat band with finely dispersed primary silicon particles out.
  • the band is called the Alloy Zone, being just a narrow transition zone (the peripheral zone) between has alloyed zone and the matrix metal (see Figure 1).
  • the powder just before it hits the metal matrix alloy has a grain structure and only in contact with the metal matrix alloy in the area of the laser beam melted within a contact time of 0.1 to 0.5 sec and is alloyed, can be in the linear focus achieve a low edge zone share of approx. 10%.
  • the laser track is lowered spirally in the cylinder bore, if necessary an overlap can be dispensed with, so that the useful parts practically collide. Thus arises a smooth, completely homogeneous surface layer that only still by finishing to remove a slight Ripple must be finished.
  • an alloy zone containing primary silicon with an average layer thickness of 300 to 750 ⁇ m in the matrix alloy generated.
  • the exact values of the layer thickness depend of various influencing factors, such as process parameters, accuracy the device positioning and dimensional tolerance of the casting from. It is therefore in the following for all thicknesses of spoken of an "average" layer thickness, the tolerance range can be kept very close since the device on Component can be centered.
  • the initial layer thickness of 300 to 750 microns is then in one further processing step to the desired final layer thickness by fine machining with a removal of up to 150 ⁇ m, such as e.g. by honing etc.
  • the according to the invention The final layer thickness achieved in the process is in the range from 150 to 650 ⁇ m. It is a pure diffusion layer, that defined by a special one in claims 1 and 2 Structure is marked.
  • the feed of the laser beam and the supplied laser energy can be the excretion variables adjust the hard phases.
  • excrement sizes less than 10 ⁇ m reduces the depth of destruction in the mechanical finishing of the hard phases, so that the previously required processing allowances for the removal of the destroyed Hard phases can be significantly reduced. (The depth of destruction is contained in the top layer, hard phases not firmly integrated.)
  • the surface is created by alloying with the laser beam hardened, with hardness values of the surface layer of at least 160 HV can be reached. As a result of the good hardening, honing the laser surfaces directly. Additional required so far mechanical or chemical processing steps for exemption the hard phases are also no longer required. This is the previously required drilling of the cylinder coatings no longer required because of the surface ripple depending on the overlap of the striped alloy zone negligible because it is very low.
  • the coating device designed according to the invention from a powder feeder 1 at its end 1a has a nozzle 1b directed towards the tread 5.
  • the energy is supplied via a laser beam device 2, a focusing system 3 and a deflecting mirror 4, the ensures that the laser beam 6 only on the tread surface 7 hits with the powder.
  • the laser beam 6 linear, preferably focused as X, I or 8 and then for example by tilting the mirror on the tread surface 7 shown. Due to the shape of the illustration, the Energy input can be controlled so that the excretion structure can be influenced in its expression at the edges.
  • the laser beam 6 travels over the Tread surface 7, so that there is a strip-like band results. If at the same time a feed movement in the direction the cylinder axis 8 takes place, results from superimposition a spiral coating of the tread surface of the two movements 7.
  • the rotating and the translational Movement in the direction of the cylinder axis 8 should be one on the other be tuned so that the turns of the spiral are tight abut each other so that there is a closed alloy zone results.
  • FIG. 2 shows the alloy zone 10, which is produced according to the invention with a line focus, consisting of a zone 11 rich in excretion and two zones 12, 13 arranged on the side with little precipitation.
  • FIG. 2 shows the state of the alloying zone immediately after the laser coating, it being evident that the proportion of the low-precipitation zone L AL , based on the usable length L NL of the precipitation-rich zone, is relatively small.
  • the corresponding areas in FIG. 3 are designated L AK , which belong to the edge zones 15, 16, 17.
  • FIG. 3 three alloy zones produced with a conventional circular focus are shown as a comparative example, the coating width approximately matching in the method with line focus and in the method with circular focus. It can be seen that the usable length L NK of the structure rich in excretions in the method with circular focus is considerably less than the usable length in the line focus L NL . In addition, the usable depth of the hardened surface layer in the circular focus is considerably less than in the line focus, since in the circular focus a structure with little elimination extends into deeper zones of the cylinder block structure. This is illustrated in the cross section according to FIG. 3 by the wide edge zones 15, 16, 17.
  • the usable depth in the comparative example according to FIG. 3 is less than the same depth of penetration in the example according to the invention according to FIG. 2, the quality of the coating according to the comparative example is less favorable. Furthermore, the required removal ⁇ H WK in the comparative example with the same machining depth as in the inventive example is significantly higher ( ⁇ H WL ), since the circular focus creates a wavy surface layer which has a lower usable material proportion M K in the area of the tread than a corresponding tread section according to FIG. 2 ( L NL ).
  • the usable material fraction is L NL
  • M K is formed as the sum of the individual values L NK1 , L NK2 , L NK3 .
  • the light alloy cylinder block according to the invention therefore has a more wear-resistant cylinder running surface thanks to uniform Distribution of the fine primary Si precipitates optimized tribologically is and by linear focus and overlapping Coating can be produced with significantly reduced production costs is.
  • FIG. 4 It is illustrated using the microstructure in FIG. 4. It is a micrograph with a magnification of 200: 1, in the right part of the picture A a casting alloy of the type AlSi9Cu3 and in the left part B a tribologically optimized surface layer with finely dispersed primary silicon precipitates is recognizable.
  • the primary silicon content here Example 10%, the primary phase diameter 4.4 ⁇ m and the distance the Si primary phases 13 ⁇ m.

Claims (16)

  1. Bloc-cylindres en aluminium comportant au moins une surface de glissement de cylindre résistant à l'usure, possédant une dureté minimale égale à 160 HV et optimisée du point de vue tribologique, dans lequel
    le bloc-cylindres en aluminium est constitué par un alliage à matrice d'aluminium (structure de matrice A) et présente une couche superficielle (structure de matrice B) possédant une épaisseur comprise entre 150 µm et 650 µm à l'état usiné avec un usinage de finition et qui est formée en tant que zone d'alliage formée à partir de la structure de matrice (structure de matrice A) de l'alliage à matrice d'aluminium, par fixation par alliage, réalisée in situ, de dépôt de silicium primaire finement dispersé, par le fait qu'un faisceau laser est guidé sur la surface de la matrice d'aluminium en étant focalisé linéairement sur une largeur de trait d'au moins 2 mm mesurée transversalement par rapport à la direction d'avance, et la poudre de Si a été chauffée à la température de fusion uniquement au point d'impact du faisceau laser avec une durée de contact comprise entre 0,1 et 0,5 s et a été alliée de ce fait dans la matrice d'aluminium,
    le silicium primaire est constitué par des grains de forme ronde répartis de façon uniforme et possédant un diamètre moyen qui est compris entre 1 µm et 10 µm, et
    la couche superficielle contient 10 % à 14 % d'un eutectique AlSi, 5 % à 20 % de silicium primaire, le reste étant formé par une phase de Al pure.
  2. Bloc-cylindres en aluminium selon la revendication 1, caractérisé en ce que les phases primaires de Si sont présentes en étant réparties dans la surface à une distance comprise entre 1 et 5 diamètres de la phase primaire.
  3. Bloc-cylindres en aluminium selon l'une des revendications précédentes, caractérisé en ce que le silicium primaire est allié dans une zone d'alliage en forme de bande dans l'alliage à matrice, les bandes s'étendant sous une forme spirale hélicoïdale sur la surface de circulation des cylindres.
  4. Bloc-cylindres en aluminium selon la revendication 3, caractérisé en ce que l'épaisseur des bandes est comprise entre 2 et 4 mm.
  5. Bloc-cylindres en aluminium selon l'une des revendications précédentes, caractérisé en ce que dans le cas de plusieurs zones d'alliage disposées les unes à côté des autres, un chevauchement des bords est prévu et la largeur du chevauchement est comprise entre 5 % et 10 %.
  6. Bloc-cylindres en aluminium selon l'une des revendications précédentes, caractérisé en ce que la couche superficielle finement dispersée, dans laquelle sont alliés les dépôts de silicium primaire, est constituée par une zone d'alliage (11) riche en précipités et par une zone marginale (12, 13) pauvre en précipités.
  7. Procédé pour fabriquer un bloc-cylindres en aluminium comportant au moins une surface de glissement de cylindre résistante à l'usure et optimisée du point de vue tribologique,
    selon lequel on coule le bloc d'aluminium formé d'un alliage à matrice d'aluminium dans un procédé de.coulée sous l'action de la force de pesanteur, de coulée basse pression ou de coulée sous pression, et
    selon lequel ensuite on exécute un traitement de surface sous la forme d'un jet de poudre exécuté parallèlement entre eux moyennant la formation d'une couche superficielle par alliage de la poudre de Si dans la matrice d'aluminium, de telle sorte qu'il apparaít une zone d'alliage finement dispersée, contenant des dépôts de silicium primaire,
    selon lequel le faisceau laser est guidé sur la surface de la matrice d'aluminium en étant focalisé sur une ligne ayant une largeur de bande d'au moins 2 mm, mesurée transversalement par rapport à la direction d'avance, et la poudre de Si est chauffée uniquement au point d'impact du faisceau laser en une durée de contact de 0,1 à 0,5 seconde à une température de fusion et est alliée de ce fait dans la matrice d'aluminium, et
    selon lequel la vitesse d'avance du faisceau laser et du jet de poudre est commandée de telle sorte que le silicium primaire est présent sur une épaisseur moyenne de couche comprise entre 300 µm et 750 µm dans la couche superficielle.
  8. Procédé selon la revendication 7, caractérisé en ce qu'on fait fondre complètement l'alliage à matrice d'aluminium au niveau du point d'impact sur une profondeur d'au moins 350 µm et qu'on le fait passer au niveau de la surface de matrice d'aluminium, à l'état de plasma.
  9. Procédé selon l'une des revendications 7 ou 8, caractérisé en ce que la poudre de silicium possède, à un instant situé peu avant de rencontrer l'alliage à matrice d'aluminium, une structure granuleuse et fond et est alliée uniquement au contact avec l'alliage à matrice métallique dans la zone du faisceau laser en une durée de contact comprise entre 0,1 et 0,5 s.
  10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce qu'en cas d'une surface d'impact focalisée du faisceau laser comprise entre 1 mm2 et 10 mm2 et pour une puissance de lumière laser comprise entre 3 et 4 kW, la vitesse d'avance du faisceau laser et du jet de poudre est comprise entre 0,8 m et 4,0 m par minute.
  11. Procédé selon l'une des revendications 7 à 10, caractérisé en ce que le faisceau laser tourne avec son foyer sur la surface de glissement intérieure d'un cylindre creux et qu'une zone d'alliage en forme de bande portant du silicium primaire est formée par addition d'une poudre de Si.
  12. Procédé selon l'une des revendications 7 à 11, caractérisé en ce que la profondeur moyenne d'usinage dans la zone d'alliage est égale à 750 µm.
  13. Procédé selon l'une des revendications 7 à 12, caractérisé en ce qu'on dégage les phases dures de la zone d'alliage par un usinage mécanique, l'enlèvement de la couche la plus élevée s'effectuant sur une épaisseur inférieure à 30 % de l'épaisseur totale de la couche.
  14. Procédé selon l'une des revendications 7 à 13, caractérisé en ce que la zone d'alliage est directement pierrée sans usinage intermédiaire.
  15. Dispositif pour la mise en oeuvre du procédé de revêtement de la surface de glissement de cylindres creux comportant un dispositif (1) d'amenée de poudre, un dispositif (2) de production d'un faisceau laser et un système de focalisation (3) possédant un miroir de renvoi (4), caractérisé en ce
    que le dispositif (1) d'amenée de la poudre et le dispositif (2) de production de faisceau laser sont guidés parallèlement entre eux dans une direction radiale et une direction axiale du cylindre creux,
    que le système de focalisation (3) possède une sortie linéaire du faisceau avec une largeur de faisceau comprise entre 2,0 mm et 2,5 mm, et
    que le dispositif d'amenée de poudre est équipé d'un dispositif de dosage, au moyen duquel le débit volumique de la poudre est réglage en fonction de la vitesse d'avance du faisceau laser.
  16. Dispositif selon la revendication 15, caractérisé en ce que le système de focalisation (3) possède une forme de foyer en forme de X, de I ou de 8, qui permet une sortie accrue d'énergie au niveau des zones marginales supérieure et inférieure par rapport à la zone centrale du foyer.s
EP00105126A 1999-04-01 2000-03-10 Bloc-cylindres en métal léger, méthode pour sa fabrication et dispositif pour la mise en oeuvre de cette méthode Expired - Lifetime EP1041173B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19915038 1999-04-01
DE19915038A DE19915038A1 (de) 1999-04-01 1999-04-01 Leichtmetallzylinderblock, Verfahren zu seiner Herstellung und Vorrichtung zur Durchführung des Verfahrens

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Publication Number Publication Date
EP1041173A1 EP1041173A1 (fr) 2000-10-04
EP1041173B1 true EP1041173B1 (fr) 2004-05-26

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US (3) US6390050B2 (fr)
EP (1) EP1041173B1 (fr)
JP (1) JP3467744B2 (fr)
KR (1) KR100388150B1 (fr)
AT (1) ATE267891T1 (fr)
AU (1) AU775660B2 (fr)
BR (1) BR0006013B1 (fr)
CA (1) CA2332944C (fr)
CZ (1) CZ294043B6 (fr)
DE (2) DE19915038A1 (fr)
ES (1) ES2222122T3 (fr)
HU (1) HU222858B1 (fr)
PL (1) PL193699B1 (fr)
RU (1) RU2212472C2 (fr)
WO (1) WO2000060136A1 (fr)
ZA (1) ZA200006437B (fr)

Cited By (1)

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CN105201809A (zh) * 2014-06-20 2015-12-30 中联重科股份有限公司 混凝土泵车及检测其泵送效率的检测装置、系统、方法

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DE19907105A1 (de) * 1999-02-19 2000-08-31 Volkswagen Ag Verfahren und Vorrichtung zum Herstellen von verschleißfesten, tribologischen Zylinderlaufflächen
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HU222858B1 (hu) 2003-12-29
HUP0001361A3 (en) 2001-02-28
ZA200006437B (en) 2001-05-21
RU2212472C2 (ru) 2003-09-20
CZ294043B6 (cs) 2004-09-15
DE50006550D1 (de) 2004-07-01
KR100388150B1 (ko) 2003-06-19
CA2332944C (fr) 2005-05-24
JP3467744B2 (ja) 2003-11-17
US6575130B2 (en) 2003-06-10
US20020033160A1 (en) 2002-03-21
DE19915038A1 (de) 2000-10-26
US6390050B2 (en) 2002-05-21
ATE267891T1 (de) 2004-06-15
US20020153359A1 (en) 2002-10-24
WO2000060136A1 (fr) 2000-10-12
KR20010043633A (ko) 2001-05-25
EP1041173A1 (fr) 2000-10-04
PL339334A1 (en) 2000-10-09
BR0006013A (pt) 2001-03-06
AU775660B2 (en) 2004-08-12
US20010003227A1 (en) 2001-06-14
CZ20001135A3 (cs) 2000-12-13
HU0001361D0 (en) 2000-06-28
US6797916B2 (en) 2004-09-28
JP2002541322A (ja) 2002-12-03
ES2222122T3 (es) 2005-02-01
CA2332944A1 (fr) 2000-10-12
PL193699B1 (pl) 2007-03-30
BR0006013B1 (pt) 2011-02-22
AU3288200A (en) 2000-10-23

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