[go: up one dir, main page]

EP0871791B1 - Process for manufacturing cylinder liners - Google Patents

Process for manufacturing cylinder liners Download PDF

Info

Publication number
EP0871791B1
EP0871791B1 EP96930115A EP96930115A EP0871791B1 EP 0871791 B1 EP0871791 B1 EP 0871791B1 EP 96930115 A EP96930115 A EP 96930115A EP 96930115 A EP96930115 A EP 96930115A EP 0871791 B1 EP0871791 B1 EP 0871791B1
Authority
EP
European Patent Office
Prior art keywords
thick
tube
walled tube
hot deformation
walled
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.)
Expired - Lifetime
Application number
EP96930115A
Other languages
German (de)
French (fr)
Other versions
EP0871791A1 (en
Inventor
Bernhard Commandeur
Rolf Schattevoy
Klaus Hummert
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.)
WKW AG
Original Assignee
Erbsloeh 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 Erbsloeh AG filed Critical Erbsloeh AG
Publication of EP0871791A1 publication Critical patent/EP0871791A1/en
Application granted granted Critical
Publication of EP0871791B1 publication Critical patent/EP0871791B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
    • 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

Definitions

  • the invention relates to a method for producing liners for internal combustion engines a heat resistant and wear resistant hypereutectic Al - Si alloy.
  • Liner bushings are components that are subject to wear and tear and that enter the cylinder openings of the The crankcase of the internal combustion engine can be inserted, pressed in or cast in.
  • the cylinder running surfaces of an internal combustion engine are subject to severe friction stress the piston or through the piston rings and locally occurring high temperatures exposed. It is therefore necessary that these surfaces be made of wear-resistant and heat-resistant Materials exist.
  • the surface of the To provide cylinder bore with wear-resistant coatings there are numerous processes, the surface of the To provide cylinder bore with wear-resistant coatings.
  • Another possibility consists of placing a liner made of a wear-resistant material in the cylinder.
  • Gray cast iron bushings used, but one in comparison to aluminum materials have low thermal conductivity and have other disadvantages.
  • the problem was initially solved by a cast cylinder block from a hypereutectic AlSi alloy solved.
  • the silicon content is for casting reasons limited to a maximum of 20% by weight.
  • Another disadvantage of the casting process is note that during the solidification of the melt silicon primary particles with relatively large dimensions (approx. 30 - 80 ⁇ m) can be eliminated. Due to the Size and their angular and sharp-edged shape lead to wear on pistons and Piston rings. One is therefore forced through the pistons and the piston rings to protect appropriate coatings / coatings. The contact area of the Si particles the piston / piston ring is leveled by mechanical processing.
  • hypereutectic AlSi alloys can be produced, which are due to the high Si content, the fineness of the Si particles and the homogeneous distribution a very have good wear resistance and through additional elements such as Fe, Ni or Mn get the required heat resistance.
  • the Si primary particles present in these alloys have a size of approx. 0.5 to 20 ⁇ m. So that's how they are Alloys made suitable for a liner material.
  • EP-A-411 577 and WO 87/03012 describe the spray compacting of hollow cylinders, the so-called Pipe blanks, known, according to EP-A the tube blanks are made of a hypereutectic Al-Si alloy. For example, the manufacture of pipe blanks with wall thicknesses from 25 to 40 mm. To thin-walled when forming such tube blanks Pipes e.g. extrusion causes the same problems described above
  • the object of the invention is therefore an improved and far Cost-effective method for the production of thin-walled tubes, in particular for To provide cylinder liners of internal combustion engines, the manufactured liners with regard to the required property improvements Wear resistance, heat resistance and reduction of pollutant emissions should.
  • the object is achieved by a method having the method described in claim 1 specified process steps solved.
  • the required tribological properties are achieved in particular by the fact that Silicon particles as primary precipitates in a size range from 0.5 to 20 ⁇ m, or as added particles in a size range up to 80 ⁇ m in the material.
  • Si particles as primary precipitates in a size range from 0.5 to 20 ⁇ m, or as added particles in a size range up to 80 ⁇ m in the material.
  • methods must be used which allow a much higher rate of solidification of a high-alloy melt than with conventional casting process is possible.
  • spray compacting For The desired properties are achieved using a high-alloy aluminum alloy melt atomized and in a nitrogen jet with a cooling rate of Cooled down to 1000 ° C / s.
  • the partially still liquid powder particles are placed on a horizontal around the longitudinal axis rotating support tube made of a similar material or a conventional aluminum material (e.g. AlMgSi0.5) sprayed.
  • the carrier tube which preferably has wall thicknesses of 2 - 3 mm, becomes linear during the process the spray jet shifted.
  • By superimposing the rotation and the Translational movement of the carrier tube creates a cylindrical tube with a fixed given inner diameter.
  • the outside diameter results from the Feed rate and the effective compacting rate. That way you can Tubes with wall thicknesses of 6 to 20 mm can be produced.
  • suitable feed and Guiding systems for the carrier tubes can be a quasi-continuous production operation can be achieved.
  • the spray compacting process also offers the possibility of introducing particles into the bolt via a particle injector that were not present in the melt. Since these particles can have any geometry and any size between 2 ⁇ m and 400 ⁇ m, there are a variety of setting options for a structure. These particles can be, for example, Si particles in the range from 2 ⁇ m to 400 ⁇ m or oxide-ceramic (for example Al 2 O 3 ) or non-oxide-ceramic particles (for example SiC, B 4 C, etc.) in the aforementioned particle size range, as are commercially available and for the tribological Aspect make sense.
  • oxide-ceramic for example Al 2 O 3
  • non-oxide-ceramic particles for example SiC, B 4 C, etc.
  • the structural state of the spray-compacted pipe can be determined by subsequent Aging anneals can be changed. Through annealing, the structure can be reduced to one Si grain size of 2 to 30 microns can be set as required for the tribological Properties is desirable.
  • the growth of larger Si particles during the Annealing process is caused by diffusion in the solid at the expense of smaller Si particles. This diffusion depends on the aging temperature and the duration of the Annealing treatment. The higher the temperature, the faster the Si grains grow. Suitable temperatures are around 500 ° C, with an annealing time of 3-5 Hours is sufficient.
  • Hot forming (different methods are possible) a reduction in the wall thickness to the required gauge blocks reached.
  • the process temperatures are preferably between 300 ° C and 500 ° C. Thereby, hot forming is not only used for forming, but also for Closure of the process-related residual porosity (1 - 5%) in the spray-compact Source material.
  • the pipe formed to the end wall thickness is then cut into pipe sections required length divided.
  • the inventive method has the advantage that the material for the liner can be tailored. At the same time, the high level of effort involved in Extrusion of thin-walled tubes both in terms of baling pressure and Press speed as well as product quality and economy through the described Production method successfully avoided.
  • An alloy of the composition AlSi25Cu2.5Mg1Ni1 is at a melt temperature of 830 ° C with a gas / metal ratio of 4.5m 3 / kg (standard cubic meters of gas per kilogram of melt) by spray compacting on a carrier tube (inner diameter: 69.5 mm, wall thickness : 2.0 mm) at a feed rate of approx. 0.6 m / min to a tube with a wall thickness of 15.0 mm.
  • the Si precipitates exist in the size range from 1 ⁇ m to 10 ⁇ m under the conditions mentioned.
  • the spray-compacted tube is subjected to an annealing treatment of 4 hours at 520 ° C.
  • the Si deposits are in the size range from 2 ⁇ m to 30 ⁇ m.
  • the spray-compacted tube is formed from an outside diameter of 98 mm to an outside diameter of 79 mm and an inside diameter of 69 mm, which is formed by a mandrel. The degree of deformation is sufficient to completely close the aforementioned residual porosity in the spray-compacted tube. No other structural change occurs during the round kneading.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Insulators (AREA)

Abstract

PCT No. PCT/EP96/03780 Sec. 371 Date Feb. 27, 1998 Sec. 102(e) Date Feb. 27, 1998 PCT Filed Aug. 28, 1996 PCT Pub. No. WO97/09459 PCT Pub. Date Mar. 13, 1997The invention relates to a method for manufacturing thin-walled pipes, which are made of a heat-resistant and wear-resistant aluminum-based material. The method comprises the spray-compacting of a thick-walled pipe made of a hypereutectic aluminum-silicon AlSi material, possibly a subsequent overaging annealing, and the hot deformation to a thin-walled pipe. Such a method is in particular united for the production of cylinder liners of internal combustion engines, since the produced liners exhibit the required properties in regard to wear resistance, heat resistance and reduction of pollutant emission.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Laufbuchsen für Verbrennungsmotoren aus einer warmfesten und verschleißfesten übereutektischen Al - Si - Legierung.The invention relates to a method for producing liners for internal combustion engines a heat resistant and wear resistant hypereutectic Al - Si alloy.

Laufbuchsen sind dem Verschleiß ausgesetzte Bauteile, die in die Zylinderöffnungen der Kurbelgehäuse des Verbrennungsmotors eingesetzt, eingepreßt oder eingegossen werden.Liner bushings are components that are subject to wear and tear and that enter the cylinder openings of the The crankcase of the internal combustion engine can be inserted, pressed in or cast in.

Die Zylinderlaufflächen eines Verbrenungsmotors sind starken Reibbeanspruchungen durch den Kolben bzw. durch die Kolbenringe und örtlich auftretenden hohen Temperaturen ausgesetzt. Es ist daher erforderlich, daß diese Flächen aus verschleißfesten und warmfesten Materialien bestehen.The cylinder running surfaces of an internal combustion engine are subject to severe friction stress the piston or through the piston rings and locally occurring high temperatures exposed. It is therefore necessary that these surfaces be made of wear-resistant and heat-resistant Materials exist.

Um dieses Ziel zu erreichen, gibt es u.a. zahlreiche Verfahren, die Oberfläche der Zylinderbohrung mit verschleißfesten Beschichtungen zu versehen. Eine andere Möglichkeit besteht darin, eine Laufbuchse aus einem verschleißfesten Material im Zylinder anzuordnen. So wurden u.a. Graugußlaufbuchsen verwendet, die aber eine im Vergleich zu Aluminium-Werkstoffen geringe Wärmeleitfähigkeit besitzen und andere Nachteile aufweisen.To achieve this goal, there are numerous processes, the surface of the To provide cylinder bore with wear-resistant coatings. Another possibility consists of placing a liner made of a wear-resistant material in the cylinder. For example, Gray cast iron bushings used, but one in comparison to aluminum materials have low thermal conductivity and have other disadvantages.

Das Problem wurde vorerst durch einen gegossenen Zylinderblock aus einer übereutektischen AlSi-Legierung gelöst. Aus gießtechnischen Gründen ist der Silizium-Gehalt auf maximal 20 Gew.-% begrenzt. Als weiterer Nachteil des Gießverfahrens ist festzuhalten, daß während der Erstarrung der Schmelze Silizium-Primärteilchen mit verhältnismäßig großen Abmessungen (ca. 30 - 80µm) ausgeschieden werden. Aufgrund der Größe und ihrer winkligen und scharfkantigen Form führen sie zu Verschleiß an Kolben und Kolbenringen. Man ist daher gezwungen, die Kolben und die Kolbenringe durch entsprechende Überzüge / Beschichtungen zu schützen. Die Kontaktfläche der Si-Teilchen zum Kolben / Kolbenring wird durch mechanische Bearbeitung eingeebnet. Einer solchen mechanischen Bearbeitung schließt sich dann eine elektrochemische Behandlung an, wodurch die Aluminiummatrix zwischen den Si-Körnern leicht zurückgesetzt wird, so daß die Si-Körner als Traggerüst aus der Zylinderlauffläche geringfügig herausragen Der Nachteil derartig gefertigter Zylinderlaufbahnen besteht zum einen in einem beachtlichen Herstellungsaufwand (teure Legierung, aufwendige mechanische Bearbeitung, eisenbeschichtete Kolben, armierte Kolbenringe) und zum anderen in der mangelhaften Verteilung der Si-Primärteilchen. So gibt es große Bereiche im Gefüge, die frei von Si-Teilchen sind und somit verstärktem Verschleiß unterliegen. Um diesen Verschleiß zu vermeiden, ist ein relativ dicker Ölfilm als Trennmedium zwischen Laufbahn und Reibpartnern erforderlich. Für die Einstellung der Ölfilmdicke ist u.a. die Freilegungstiefe der Si-Teilchen entscheidend. Ein verhältnismäßig dicker Ölfilm führt zu höheren Reibungsverlusten in der Maschine und zu einer stärkeren Erhöhung der Schadstoffemmision.The problem was initially solved by a cast cylinder block from a hypereutectic AlSi alloy solved. The silicon content is for casting reasons limited to a maximum of 20% by weight. Another disadvantage of the casting process is note that during the solidification of the melt silicon primary particles with relatively large dimensions (approx. 30 - 80 µm) can be eliminated. Due to the Size and their angular and sharp-edged shape lead to wear on pistons and Piston rings. One is therefore forced through the pistons and the piston rings to protect appropriate coatings / coatings. The contact area of the Si particles the piston / piston ring is leveled by mechanical processing. Such one mechanical processing is followed by an electrochemical treatment, whereby the aluminum matrix between the Si grains is easily reset so that the Si grains protrude slightly from the cylinder surface as a supporting structure The disadvantage of cylinder liners manufactured in this way is, on the one hand, that they are considerable Manufacturing effort (expensive alloy, complex mechanical processing, iron-coated pistons, armored piston rings) and the other in the defective Distribution of the Si primary particles. There are large areas in the structure that are free of Si particles and are therefore subject to increased wear. To this wear too avoid, is a relatively thick oil film as a separating medium between the track and Friction partners required. For the adjustment of the oil film thickness the depth of exposure of the Si particles is crucial. A relatively thick oil film leads to higher ones Loss of friction in the machine and a greater increase in the Pollutant emission.

Demgegenüber ist ein Zylinderblock gemäß DE 42 30 228, der aus einer untereutektischen AlSi-Legierung gegossen und mit Laufbuchsen aus übereutektischen AlSi-Legierungsmaterial versehen wird, kostengünstiger. Die zuvor genannten Probleme werden aber auch hier nicht gelöst.In contrast is a cylinder block according to DE 42 30 228, which consists of a hypoeutectic Cast AlSi alloy and with liners made of hypereutectic AlSi alloy material is provided, cheaper. The problems mentioned above will but not solved here either.

Um die Vorteile der übereutektischen AlSi-Legierungen als Laufbuchsenmaterial nutzen zu können, ist das Gefüge hinsichtlich der Si-Körner zu verändern. Aluminiumlegierungen, die gießtechnisch nicht realisierbar sind, können bekanntlich durch pulvermetallurgische Verfahren oder Sprühkompaktieren maßgeschneidert hergestellt werden.To take advantage of the hypereutectic AlSi alloys as a liner material the structure with regard to the Si grains must be changed. Aluminum alloys that are not feasible in terms of casting technology, as is known by powder metallurgy Process or spray compacting can be made to measure.

So sind auf diese Weise übereutektische AlSi-Legierungen herstellbar, die aufgrund des hohen Si-Gehaltes, der Feinheit der Si-Teilchen und der homogenen Verteilung eine sehr gute Verschleißfestigkeit besitzen und durch Zusatzelemente wie beispielsweise Fe, Ni oder Mn die erforderliche Warmfestigkeit erhalten. Die in diesen Legierungen vorliegenden Si-Primärteilchen haben eine Größe von ca. 0,5 bis 20 µm. Damit sind die auf diese Weise hergestellten Legierungen geeignet für einen Laufbuchsenwerkstoff.In this way, hypereutectic AlSi alloys can be produced, which are due to the high Si content, the fineness of the Si particles and the homogeneous distribution a very have good wear resistance and through additional elements such as Fe, Ni or Mn get the required heat resistance. The Si primary particles present in these alloys have a size of approx. 0.5 to 20 µm. So that's how they are Alloys made suitable for a liner material.

Obwohl Aluminium-Legierungen im allgemeinen leicht zu verarbeiten sind, ist das Umformen dieser übereutektischer Legierungen problematischer. Aus der EP 0 635 318 ist ein Verfahren zum Herstellen von Laufbuchsen aus einer übereutektischen AlSi-Legierung bekannt. Hier wird die Laufbuchse durch Strangpressen bei sehr hohen Drücken und Strangpreßgeschwindigkeiten von 0,5 bis 12m/min gefertigt. Um kostengünstig durch Strangpressen Laufbuchsen auf Endmaß zu produzieren, sind sehr hohe Preßgeschwindigkeiten notwendig. Es hat sich gezeigt, daß bei derartig schwer preßbaren Legierungen und den zu erzielenden geringen Wandstärken der Laufbuchsen die hohen Preßgeschwindigkeiten zum Aufreißen der Profile beim Strangpressen führen.Although aluminum alloys are generally easy to work with, that is Reshaping these hypereutectic alloys is more problematic. From the EP 0 635 318 is a method for manufacturing liners from a hypereutectic AlSi alloy known. Here the liner is extruded at very high Pressing and extrusion speeds of 0.5 to 12m / min manufactured. Around It is very cost-effective to produce sleeves to final dimensions by extrusion high pressing speeds necessary. It has been shown to be so difficult pressable alloys and the small wall thicknesses of the liners to be achieved high press speeds lead to tearing of the profiles during extrusion.

Aus der EP-A-411 577 und der WO 87/03012 ist das Sprühkompaktieren von Hohlzylindern, den sogenannten Rohrluppen, bekannt, wobei gemäß der EP-A die Rohrluppen aus einer übereutektischen Al-Si-Legierung gefertigt werden. Beispielsweise ist die Herstellung von Rohrluppen mit Wandstärken von 25 bis 40 mm beschrieben. Beim Umformen derartiger Rohrluppen zu dünnwandigen Rohren z.B. durch Strangpressen treten die gleichen oben beschriebenen Probleme auf EP-A-411 577 and WO 87/03012 describe the spray compacting of hollow cylinders, the so-called Pipe blanks, known, according to EP-A the tube blanks are made of a hypereutectic Al-Si alloy. For example, the manufacture of pipe blanks with wall thicknesses from 25 to 40 mm. To thin-walled when forming such tube blanks Pipes e.g. extrusion causes the same problems described above

Die Aufgabe der Erfindung besteht daher darin, ein verbessertes und weitaus kostengünstigeres Verfahren zur Herstellung von dünnwandigen Rohren, insbesondere für Zylinderlaufbuchsen von Verbrennungsmotoren, zur Verfügung zu stellen, wobei die gefertigten Laufbuchsen die geforderten Eigenschaftsverbesserungen bezüglich Verschleißfestigkeit, Warmfestigkeit und Reduzierung der Schadstoffemmisionen aufweisen sollen.The object of the invention is therefore an improved and far Cost-effective method for the production of thin-walled tubes, in particular for To provide cylinder liners of internal combustion engines, the manufactured liners with regard to the required property improvements Wear resistance, heat resistance and reduction of pollutant emissions should.

Erfindungsgemäß wird die Aufgabe durch ein Verfahren mit den im Patentanspruch 1 angegebenen Verfahrensschritten gelöst.According to the invention, the object is achieved by a method having the method described in claim 1 specified process steps solved.

Weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Further refinements of the invention are specified in the subclaims.

Die erforderlichen tribologischen Eigenschaften werden insbesondere dadurch erreicht, daß Silizium - Partikel als Primärausscheidungen in einem Größenbereich von 0,5 bis 20 µm, oder als zugesetzte Partikel in einem Größenbereich bis 80µm im Werkstoff vorhanden sind. Zur Herstellung solcher Al-Legierungen müssen Verfahren angewendet werden, die eine weit höhere Erstarrungsgeschwindigkeit einer hochlegierten Schmelze erlauben, als es mit konventionellen Gießverfahren möglich ist.The required tribological properties are achieved in particular by the fact that Silicon particles as primary precipitates in a size range from 0.5 to 20 µm, or as added particles in a size range up to 80µm in the material. For the production of such Al alloys, methods must be used which allow a much higher rate of solidification of a high-alloy melt than with conventional casting process is possible.

Dazu gehört das Sprühkompaktierverfahren (im nachfolgenden "Sprühkompaktieren"). Zur Erzielung der gewünschten Eigenschaften wird eine mit Silizium hochlegierte Aluminium-Legierungsschmelze verdüst und im Stickstoffstrahl mit einer Abkühlgeschwindigkeit von 1000°C/s abgekühlt. Die teilweise noch flüssigen Pulverteilchen werden auf ein horizontal um die Längsachse rotierendes Trägerrohr aus einem artgleichen Material oder einem konventionellen Aluminium-Werkstoff (z.B. AlMgSi0,5) gesprüht. Das Trägerrohr, welches vorzugsweise Wandstärken von 2 - 3 mm hat, wird während des Vorganges linear unter dem Sprühstrahl verschoben. Durch Überlagerung der Rotations- und der Translationsbewegung des Trägerrohres entsteht ein zylindrisches Rohr mit einem fest vorgegebenen Innendurchmesser. Der Außendurchmesser ergibt sich aus der Vorschubgeschwindigkeit und der effektiven Kompaktierrate. Auf diese Weise können Rohre mit Wandstärken von 6 bis 20 mm hergestellt werden. Durch geeignete Zuführ- und Führungssysteme für die Trägerrohre kann ein quasi-kontinuierlicher Produktionsbetrieb erreicht werden.This includes the spray compacting process (hereinafter "spray compacting"). For The desired properties are achieved using a high-alloy aluminum alloy melt atomized and in a nitrogen jet with a cooling rate of Cooled down to 1000 ° C / s. The partially still liquid powder particles are placed on a horizontal around the longitudinal axis rotating support tube made of a similar material or a conventional aluminum material (e.g. AlMgSi0.5) sprayed. The carrier tube, which preferably has wall thicknesses of 2 - 3 mm, becomes linear during the process the spray jet shifted. By superimposing the rotation and the Translational movement of the carrier tube creates a cylindrical tube with a fixed given inner diameter. The outside diameter results from the Feed rate and the effective compacting rate. That way you can Tubes with wall thicknesses of 6 to 20 mm can be produced. Through suitable feed and Guiding systems for the carrier tubes can be a quasi-continuous production operation can be achieved.

Aufgrund der hohen Abkühlgeschwindigkeiten entstehen in diesem Sprühkompaktierprozeß Si-Primärausscheidungen bis zu 20 µm Größe. Eine Anpassung der Si-Ausscheidungsgröße erreicht man durch das "Gas zu Metall - Verhältnis" (Normkubikmeter Gas pro Kilogramm Schmelze), mit dem die Erstarrungsgeschwindigkeit im Prozeß eingestellt werden kann. Wegen der hohen Erstarrungsgeschwindigkeiten und der Übersättigung der Schmelze können Si-Gehalte der Legierungen bis zu 40 Gew.% realisiert werden. Aufgrund der schnellen Abschreckung der Aluminium-Schmelze im Gasstrahl wird der Übersättigungszustand im erhaltenen Rohr quasi "eingefroren".Due to the high cooling rates, this spray compacting process occurs Si primary deposits up to 20 µm in size. An adjustment of the Si excretion size can be achieved by the "gas to metal ratio" (standard cubic meters of gas per kilogram Melt) with which the solidification rate can be set in the process. Because of the high solidification rates and the supersaturation of the melt Si contents of the alloys of up to 40% by weight can be achieved. Due to the The rapid quenching of the aluminum melt in the gas jet becomes the The state of supersaturation in the pipe obtained is virtually "frozen".

Der Sprühkompaktierprozeß bietet weiterhin die Möglichkeit, über einen Partikelinjektor Teilchen in den Bolzen einzubringen, die nicht in der Schmelze vorhanden waren. Da diese Teilchen eine beliebige Geometrie und eine beliebige Größe zwischen 2µm und 400µm aufweisen können, bestehen eine Vielzahl von Einstellungsmöglichkeiten für ein Gefüge. Diese Teilchen können z.B. Si-Partikel im Bereich von 2µm bis 400µm oder oxidkeramische (z.B. Al2O3) oder nicht-oxidkeramische Teilchen (z.B.SiC, B4C, etc.) im vorgenannten Teilchengrößenspektrum sein, wie sie kommerziell erhältlich und für den tribologischen Aspekt sinnvoll sind.The spray compacting process also offers the possibility of introducing particles into the bolt via a particle injector that were not present in the melt. Since these particles can have any geometry and any size between 2 µm and 400 µm, there are a variety of setting options for a structure. These particles can be, for example, Si particles in the range from 2 μm to 400 μm or oxide-ceramic (for example Al 2 O 3 ) or non-oxide-ceramic particles (for example SiC, B 4 C, etc.) in the aforementioned particle size range, as are commercially available and for the tribological Aspect make sense.

Der Gefügezustand des sprühkompaktierten Rohres kann durch anschließende Überalterungsglühungen geändert werden. Durch eine Glühung kann das Gefüge auf eine Si-Korngröße von 2 bis 30 µm eingestellt werden, wie sie für die geforderten tribologischen Eigenschaften wünschenswert ist. Das Heranwachsen größerer Si-Partikel während des Glühprozesses wird durch Diffusion im Festkörper auf Kosten kleinerer Si-Partikel bewirkt. Diese Diffusion ist abhängig von der Überalterungstemperatur und der Dauer der Glühbehandlung. Je höher die Temperatur gewählt wird, desto schneller wachsen die Si-Körner. Geeignete Temperaturen liegen bei etwa 500°C, wobei eine Glühdauer von 3 - 5 Stunden ausreichend ist.The structural state of the spray-compacted pipe can be determined by subsequent Aging anneals can be changed. Through annealing, the structure can be reduced to one Si grain size of 2 to 30 microns can be set as required for the tribological Properties is desirable. The growth of larger Si particles during the Annealing process is caused by diffusion in the solid at the expense of smaller Si particles. This diffusion depends on the aging temperature and the duration of the Annealing treatment. The higher the temperature, the faster the Si grains grow. Suitable temperatures are around 500 ° C, with an annealing time of 3-5 Hours is sufficient.

Das so eingestellte und damit maßgeschneiderte Gefüge verändert sich bei den nachfolgenden Verfahrensschritten nicht mehr oder es verändert sich im Sinne der geforderten tribologischen Eigenschaften günstig.The structure thus adjusted and thus tailored changes with the subsequent process steps no longer or it changes in the sense of required tribological properties favorable.

Abhängig von der Ausgangswandstärke der solchermaßen hergestellten Rohre wird durch Warmumformen (möglich sind verschiedene Verfahren) eine Reduzierung der Wandstärke auf die geforderten Endmaße erreicht. Die Prozeßtemperaturen liegen vorzugsweise zwischen 300 °C und 500 °C. Dabei dient das Warmumformen nicht nur der Fromgebung, sondern auch zur Schließung der prozeßbedingten Restporosität (1 - 5 %) im sprühkompaktierten Ausgangsmaterial.Depending on the initial wall thickness of the pipes manufactured in this way, Hot forming (different methods are possible) a reduction in the wall thickness to the required gauge blocks reached. The process temperatures are preferably between 300 ° C and 500 ° C. Thereby, hot forming is not only used for forming, but also for Closure of the process-related residual porosity (1 - 5%) in the spray-compact Source material.

Das auf die Endwanddicke geformte Rohr wird anschließend in Rohrabschnitte der geforderten Länge zerteilt.The pipe formed to the end wall thickness is then cut into pipe sections required length divided.

Das erfindungsgemäße Verfahren hat den Vorteil, daß das Material für die Laufbuchse maßgeschneidert werden kann. Gleichzeitig wird dem hohen Aufwand beim einstufigen Strangpressen dünnwandiger Rohre sowohl hinsichtlich Preßdruck und Preßgeschwindigkeit als auch Produktqualität und Wirtschaftlichkeit durch die beschriebene Fertigungsweise erfolgreich ausgewichen. The inventive method has the advantage that the material for the liner can be tailored. At the same time, the high level of effort involved in Extrusion of thin-walled tubes both in terms of baling pressure and Press speed as well as product quality and economy through the described Production method successfully avoided.

Beispiel 1:Example 1:

Eine Legierung der Zusammensetzung AlSi25Cu2,5Mg1Ni1 wird bei einer Schmelzentemperatur von 830°C mit einem Gas/ Metall -Verhältnis von 4,5m3/kg (Normkubikmeter Gas pro Kilogramm Schmelze) durch Sprühkompaktieren auf einem Trägerrohr (Innendurchmesser: 69,5 mm, Wandstärke: 2,0 mm) bei einer Vorschubgeschwindigkeit von ca. 0,6 m/min zu einem Rohr mit einer Wandstärke von 15,0 mm kompaktiert. Im sprühkompaktierten Material liegen unter den genannten Bedingungen die Si - Ausscheidungen im Größenbereich von 1µm bis 10µm vor. Das sprühkompaktierte Rohr wird einer Glühbehandlung von 4h bei 520°C unterzogen. Nach dieser Glühbehandlung liegen die Si-Auscheidungen im Größenbereich von 2 µm bis 30 µm. Durch anschließende Warmumformung durch Rundkneten bei 420°C wird das sprühkompaktierte Rohr von einem Außendurchmesser von 98 mm auf einen Außendurchmesser von 79 mm und einem Innendurchmesser von 69 mm, der durch einen Dorn geformt wird, umgeformt. Der Umformgrad ist ausreichend, um die zuvor genannte Restporosität im sprühkompaktierten Rohr vollständig zu schließen. Beim Rundkneten tritt keine anderweitige Gefügeänderung auf.An alloy of the composition AlSi25Cu2.5Mg1Ni1 is at a melt temperature of 830 ° C with a gas / metal ratio of 4.5m 3 / kg (standard cubic meters of gas per kilogram of melt) by spray compacting on a carrier tube (inner diameter: 69.5 mm, wall thickness : 2.0 mm) at a feed rate of approx. 0.6 m / min to a tube with a wall thickness of 15.0 mm. In the spray-compacted material, the Si precipitates exist in the size range from 1 µm to 10 µm under the conditions mentioned. The spray-compacted tube is subjected to an annealing treatment of 4 hours at 520 ° C. After this annealing treatment, the Si deposits are in the size range from 2 µm to 30 µm. Subsequent hot forming by round kneading at 420 ° C, the spray-compacted tube is formed from an outside diameter of 98 mm to an outside diameter of 79 mm and an inside diameter of 69 mm, which is formed by a mandrel. The degree of deformation is sufficient to completely close the aforementioned residual porosity in the spray-compacted tube. No other structural change occurs during the round kneading.

Claims (15)

  1. Method for manufacturing liners for combustion engines from a hypereutectic AlSi alloy, characterised in that
    a molten AlSi alloy is deposited by spray compacting onto a rotating support tube to directly produce a thick-walled tube with a wall thickness of 6 to 20 mm from a hypereutectic AlSi material, with the contained primary Si particles having a size of 0.5 to 20 µm and preferably a size of 1 to 10 µm,
    the thick-walled tube is, where necessary, subjected to overaging annealing to increase the size of the contained primary Si particles to between 2 and 30 µm,
    the tube is reduced to a wall thickness of 1.5 to 5 mm by a hot deformation process at temperatures of between 250 and 500 °C.
  2. Method according to claim 1, characterised in that a molten alloy, having the below composition, is used for producing the thick-walled tube:
    Al Si(17-35) Cu(2.5-3.5) Mg(0.2-2.0) Ni(0.5-2).
  3. Method according to claim 1, characterised in that a molten alloy, having the below composition, is used for producing the thick-walled tube:
    Al Si(17-35) Fe(3-5) Ni(1-2).
  4. Method according to claim 1, characterised in that a molten alloy, having the below composition, is used for producing the thick-walled tube:
    Al Si(25-35)
  5. Method according to claim 1, characterised in that a molten alloy, having the below composition, is used for producing the thick-walled tube:
    Al Si(17-35) Cu(2.5-3.3) Mg(0.2-2.0) Mn(0.5-5).
  6. Method according to claims 1 to 5, characterised in that during spray compacting, a part of the silicon is furnished through the melt of an AlSi alloy into the tube and a part of the silicon is furnished in the form of Si powder by means of a particle injector into the tube.
  7. Method according to claims 1 to 5, characterised in that during spray compacting using a particle injector, also wear-resistant oxide ceramic or non-oxide ceramic particles are injected.
  8. Method according to claims 1 to 7, characterised in that the overaging annealing for coarsening the primary Si particles is performed at temperatures of between 460 and 540 °C over a time period of 0.5 to 10 hours.
  9. Method according to claims 1 to 8, characterised in that the hot deformation of the thick-walled tube occurs by round kneading and rotary swaging.
  10. Method according to claims 1 to 8, characterised in that the hot deformation of the thick-walled tube occurs by tube rolling with an internal tool.
  11. Method according to claims 1 to 8, characterised in that the hot deformation of the thick-walled tube occurs by press-rolling.
  12. Method according to claims 1 to 8, characterised in that the hot deformation of the thick-walled tube occurs by tube drawing.
  13. Method according to claims 1 to 8, characterised in that the hot deformation of the thick-walled tube occurs by annular rolling.
  14. Method according to claims 1 to 8, characterised in that the hot deformation of the thick-walled tube occurs by forwards or reverse tube extrusion with or without counterpressure.
  15. Method according to claims 1 to 14, characterised in that the tube formed to the final diameter and wall thickness is cut into tube sections of a desired length.
EP96930115A 1995-09-01 1996-08-28 Process for manufacturing cylinder liners Expired - Lifetime EP0871791B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19532252 1995-09-01
DE19532252A DE19532252C2 (en) 1995-09-01 1995-09-01 Method of manufacturing bushings
PCT/EP1996/003780 WO1997009459A1 (en) 1995-09-01 1996-08-28 Process for manufacturing thin pipes

Publications (2)

Publication Number Publication Date
EP0871791A1 EP0871791A1 (en) 1998-10-21
EP0871791B1 true EP0871791B1 (en) 2000-11-29

Family

ID=7770982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96930115A Expired - Lifetime EP0871791B1 (en) 1995-09-01 1996-08-28 Process for manufacturing cylinder liners

Country Status (13)

Country Link
US (2) US6136106A (en)
EP (1) EP0871791B1 (en)
JP (1) JP3664315B2 (en)
KR (1) KR100258754B1 (en)
CN (1) CN1066493C (en)
AT (1) ATE197821T1 (en)
BR (1) BR9610546A (en)
DE (2) DE19532252C2 (en)
DK (1) DK0871791T3 (en)
ES (1) ES2152560T3 (en)
GR (1) GR3035368T3 (en)
PT (1) PT871791E (en)
WO (1) WO1997009459A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19621264B4 (en) * 1996-05-25 2005-09-15 Mahle Gmbh Method for producing a cylinder liner
DE19643029A1 (en) * 1996-10-18 1998-04-23 Bayerische Motoren Werke Ag Method for coating an internal combustion engine component made of an aluminum alloy with silicon
DE19731804A1 (en) * 1997-07-24 1999-01-28 Bayerische Motoren Werke Ag Manufacturing process for a cylinder liner of an internal combustion engine
EP1017948A1 (en) * 1997-09-15 2000-07-12 Alusuisse Technology & Management AG Cylinder liner
DE19750686C1 (en) * 1997-11-15 1999-09-23 Ks Aluminium Technologie Ag Method of manufacturing a cylinder liner
DE10104638A1 (en) * 2001-02-02 2002-08-22 Thyssen Krupp Automotive Ag Production of components for driving gears and stationary gas turbines includes primary deforming spray-compacted particle-reinforced light metallic material based on aluminum and/or magnesium to form blanks
DE10235911B3 (en) * 2002-08-06 2004-04-15 Peak-Werkstoff Gmbh Cast composite of hollow profiles made of light metal alloy and process for its production
DE10239522B4 (en) 2002-08-23 2016-02-11 Leica Geosystems Ag Holding device for an optical element
DE102006023690A1 (en) * 2006-05-19 2007-11-22 Schaeffler Kg Method for producing a rolling bearing component and rolling bearing component
DE102006051544A1 (en) * 2006-11-02 2008-05-08 Schaeffler Kg Rolling bearing component useful in motor elements of motor vehicles, comprises a rolling solid surface and vibration damping core, which is produced in a metal spray-compacted method
DE102007003135B3 (en) * 2007-01-16 2008-03-06 Peak Werkstoff Gmbh Manufacturing multi-cylinder engine block and crank case, fastens metal strip around cylinder liner to assist location in mold used for casting block
EP2289042A4 (en) * 2008-05-30 2016-01-27 Sky Castle Global Ltd Method and system for providing online services and software
US20100089315A1 (en) 2008-09-22 2010-04-15 Applied Materials, Inc. Shutter disk for physical vapor deposition chamber
US20100224290A1 (en) * 2009-03-09 2010-09-09 Honda Motor Co., Ltd. Aluminum alloy casting and method for producing the same, and apparatus for producing slide member
DE102012006121A1 (en) * 2012-03-26 2013-09-26 Erbslöh Aluminium Gmbh Solder powder for connecting components made of aluminum alloy, comprises powder particles based on aluminum-silicon, where uniformly distributed primary-crystalline silicon precipitates in an eutectic aluminum silicon alloy microstructure
US9845764B2 (en) * 2015-03-31 2017-12-19 Achates Power, Inc. Cylinder liner for an opposed-piston engine
CN107058739B (en) * 2017-01-22 2018-08-07 哈尔滨理工大学 A kind of hypereutectic al-si composite material and its manufacturing method, application
CN107813104B (en) * 2017-09-07 2019-02-01 马鞍山市新马精密铝业股份有限公司 The manufacturing method of automobile gas spring aluminum alloy combination pipe fitting
CN108842041A (en) * 2018-07-13 2018-11-20 宁国市正兴耐磨材料有限公司 A kind of multi-layer wear-resistant ball and preparation method thereof can be used for grinding strong oxidizing property material
CN114683535B (en) * 2020-12-28 2024-08-27 扬诚精密医材股份有限公司 3D printing equipment
CN114669617B (en) * 2022-05-27 2022-08-26 江苏中天科技股份有限公司 Super heat-resistant aluminum alloy strain pipe

Family Cites Families (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE810223C (en) * 1949-04-14 1951-08-06 Deutsche Edelstahlwerke Ag Process for the production of metallic moldings
US3325279A (en) * 1965-12-03 1967-06-13 Dow Chemical Co Aluminum-high silicon alloys
BE790453A (en) * 1971-10-26 1973-02-15 Brooks Reginald G MANUFACTURE OF METAL ARTICLES
GB1431895A (en) * 1972-06-30 1976-04-14 Alcan Res & Dev Production of aluminium alloy products
CA1017601A (en) * 1973-04-16 1977-09-20 Comalco Aluminium (Bell Bay) Limited Aluminium alloys for internal combustion engines
US4155756A (en) * 1976-03-10 1979-05-22 Societe De Vente De L'aluminium Pechiney Hollow bodies produced by powder extrusion of aluminum-silicon alloys
FR2343895A1 (en) * 1976-03-10 1977-10-07 Pechiney Aluminium PROCESS FOR MANUFACTURING HOLLOW BODIES IN SILICON ALUMINUM ALLOYS BY SHELL SPINNING
US4135922A (en) * 1976-12-17 1979-01-23 Aluminum Company Of America Metal article and powder alloy and method for producing metal article from aluminum base powder alloy containing silicon and manganese
JPS57198237A (en) * 1981-05-29 1982-12-04 Riken Corp Sliding member made of aluminum alloy and its manufacture
US4464146A (en) * 1982-05-17 1984-08-07 Imperial Clevite Inc. Apparatus for maintaining tension of an endless drive member
FR2537654B2 (en) * 1982-06-17 1987-01-30 Pechiney Aluminium IMPROVEMENT OF ENGINE SHIRTS BASED ON ALUMINUM ALLOYS AND CALIBRATED SILICON GRAINS AND PROCESSES FOR OBTAINING SAME
CA1230761A (en) * 1982-07-12 1987-12-29 Fumio Kiyota Heat-resistant, wear-resistant, and high-strength aluminum alloy powder and body shaped therefrom
US4486470A (en) * 1982-09-29 1984-12-04 Teledyne Industries, Inc. Casting and coating with metallic particles
FR2537655A1 (en) * 1982-12-09 1984-06-15 Cegedur ENGINE SHAPES BASED ON ALUMINUM ALLOYS AND INTERMETALLIC COMPOUNDS AND METHODS FOR OBTAINING THEM
CH665223A5 (en) * 1984-03-16 1988-04-29 Showa Aluminium Co Ltd Extruded high silicon-aluminium alloys
DE3435460A1 (en) * 1984-09-27 1986-04-10 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München METHOD FOR PRODUCING WORKPIECES FROM LIGHT METAL
FR2576913B1 (en) * 1985-02-01 1987-02-27 Cegedur PROCESS FOR OBTAINING A POWDER METALLURGY OF A MATERIAL BASED ON ALUMINUM ALLOY AND AT LEAST ONE CERAMIC FOR MAKING FRICTIONALLY SUBJECTED PARTS
NO850403L (en) * 1985-02-01 1986-08-04 Ingard Kvernes ALUMINUM BASED ARTICLE WITH PROTECTIVE COATS AND PROCEDURES FOR PRODUCING THEREOF.
DE3511555A1 (en) * 1985-03-29 1986-10-09 Kolbenschmidt AG, 7107 Neckarsulm ALUMINUM ALLOY COMPONENTS FOR INTERNAL COMBUSTION ENGINES
JPS61291941A (en) * 1985-06-19 1986-12-22 Taiho Kogyo Co Ltd Cast al alloy having high si content
DE3681732D1 (en) * 1985-11-12 1991-10-31 Osprey Metals Ltd PRODUCING LAYERS BY SPRAYING LIQUID METALS.
JP2787466B2 (en) * 1988-05-12 1998-08-20 住友電気工業株式会社 Forming method of aluminum alloy for large diameter products
US4989556A (en) * 1988-10-07 1991-02-05 Honda Giken Kogyo Kabushiki Kaisha Valve spring retainer for valve operating mechanism for internal combustion engine
EP0366134B1 (en) * 1988-10-27 1994-01-19 Toyo Aluminium Kabushiki Kaisha Aluminum alloy useful in powder metallurgy process
JPH0621309B2 (en) * 1988-10-31 1994-03-23 本田技研工業株式会社 Heat resistance, wear resistance, and high toughness Al-Si alloy and cylinder-liner using the same
US5022455A (en) * 1989-07-31 1991-06-11 Sumitomo Electric Industries, Ltd. Method of producing aluminum base alloy containing silicon
JP2761085B2 (en) * 1990-07-10 1998-06-04 昭和電工株式会社 Raw material powder for Al-Si based alloy powder sintered parts and method for producing sintered parts
DE69120299T2 (en) * 1990-10-31 1997-01-23 Sumitomo Electric Industries OVEREUTECTIC ALUMINUM-SILICONE POWDER AND THEIR PRODUCTION
US5196471A (en) * 1990-11-19 1993-03-23 Sulzer Plasma Technik, Inc. Thermal spray powders for abradable coatings, abradable coatings containing solid lubricants and methods of fabricating abradable coatings
DE4111509A1 (en) * 1991-04-09 1992-10-15 Austria Metall METHOD FOR PRODUCING EXTRUDED PROFILE PARTS
US5080056A (en) * 1991-05-17 1992-01-14 General Motors Corporation Thermally sprayed aluminum-bronze coatings on aluminum engine bores
CH683267A5 (en) * 1991-06-10 1994-02-15 Alusuisse Lonza Services Ag A method for heating a workpiece of a metal alloy.
JP2703840B2 (en) * 1991-07-22 1998-01-26 東洋アルミニウム 株式会社 High strength hypereutectic A1-Si powder metallurgy alloy
US5435825A (en) * 1991-08-22 1995-07-25 Toyo Aluminum Kabushiki Kaisha Aluminum matrix composite powder
US5372775A (en) * 1991-08-22 1994-12-13 Sumitomo Electric Industries, Ltd. Method of preparing particle composite alloy having an aluminum matrix
JP2965774B2 (en) * 1992-02-13 1999-10-18 ワイケイケイ株式会社 High-strength wear-resistant aluminum alloy
DE4212716A1 (en) * 1992-04-16 1993-10-21 Ks Aluminium Technologie Ag Process for the manufacture of cylinders or cylinder blocks
US5460775A (en) * 1992-07-02 1995-10-24 Sumitomo Electric Industries, Ltd. Nitrogen-combined aluminum sintered alloys and method of producing the same
DE4230228C1 (en) * 1992-09-10 1994-05-11 Honsel Werke Ag Cast light metal alloy component - has expensive wear resistant alloy bush cast around hub portion of inexpensive alloy main body
JPH06172893A (en) * 1992-09-29 1994-06-21 Matsuda Micron Kk Sliding member having excellent wear resistance and method for manufacturing the same
DE69307848T2 (en) * 1992-12-03 1997-08-21 Toyo Aluminium Kk Highly heat-resistant and wear-resistant aluminum alloy
CA2112441C (en) * 1992-12-29 2005-08-09 Tomiyoshi Kanai Corrosion-resistant and brazeable aluminum material and a method of producing same
JPH06211396A (en) * 1993-01-13 1994-08-02 Toray Ind Inc Method and device for clip chain monitoring of tenter
JPH06211395A (en) * 1993-01-18 1994-08-02 Mitsubishi Electric Corp Pinch roller mechanism of automatic paper loading device
JP3184367B2 (en) * 1993-05-24 2001-07-09 住友軽金属工業株式会社 Method for producing high toughness Al-Si alloy
GB9311618D0 (en) * 1993-06-04 1993-07-21 Brico Eng Aluminium alloys
DE59408129D1 (en) * 1993-07-22 1999-05-27 Alusuisse Lonza Services Ag Extrusion process
DE4427795C2 (en) * 1993-08-06 1997-04-17 Aisin Seiki Metal-based composite
DE4328093C2 (en) * 1993-08-20 1998-04-02 Ae Goetze Gmbh Process for the production of engine blocks for internal combustion engines from a light metal alloy with wear-resistant lined cylinder bores
GB2294102B (en) * 1993-12-04 1996-06-26 Ae Goetze Automotive Limited Fibre-reinforced metal pistons
DE4404420C2 (en) * 1994-02-11 1997-07-17 Alcan Gmbh Aluminum-silicon alloy and its use
US5545487A (en) * 1994-02-12 1996-08-13 Hitachi Powdered Metals Co., Ltd. Wear-resistant sintered aluminum alloy and method for producing the same
DE4406191A1 (en) * 1994-02-25 1995-09-07 Ks Aluminium Technologie Ag Plain bearing
JP3378342B2 (en) * 1994-03-16 2003-02-17 日本軽金属株式会社 Aluminum casting alloy excellent in wear resistance and method for producing the same
JP3280516B2 (en) * 1994-05-20 2002-05-13 株式会社ユニシアジェックス Piston for internal combustion engine and method of manufacturing the same
DE4418750C2 (en) * 1994-05-28 2000-06-15 Vaw Ver Aluminium Werke Ag Process for the production of wear-resistant surfaces on molded parts
JP3547098B2 (en) * 1994-06-06 2004-07-28 トヨタ自動車株式会社 Thermal spraying method, method for manufacturing sliding member having sprayed layer as sliding surface, piston, and method for manufacturing piston
EP0704613A1 (en) * 1994-09-28 1996-04-03 KS Aluminium Technologie Aktiengesellschaft Compositely cast cylinder or cylinderblock
US6096143A (en) * 1994-10-28 2000-08-01 Daimlerchrysler Ag Cylinder liner of a hypereutectic aluminum/silicon alloy for use in a crankcase of a reciprocating piston engine and process for producing such a cylinder liner
GB9517045D0 (en) * 1995-08-19 1995-10-25 Gkn Sankey Ltd Method of manufacturing a cylinder block
DE19532253C2 (en) * 1995-09-01 1998-07-02 Peak Werkstoff Gmbh Process for the production of thin-walled pipes (II)
DE19532244C2 (en) * 1995-09-01 1998-07-02 Peak Werkstoff Gmbh Process for the production of thin-walled tubes (I)
JPH09151782A (en) * 1995-11-29 1997-06-10 Toyota Motor Corp Manufacturing method of cylinder block
DE19733204B4 (en) * 1997-08-01 2005-06-09 Daimlerchrysler Ag Coating of a hypereutectic aluminum / silicon alloy, spray powder for their production and their use
DE19841619C2 (en) * 1998-09-11 2002-11-28 Daimler Chrysler Ag Material wire for producing wear-resistant coatings from hypereutectic Al / Si alloys by thermal spraying and its use

Also Published As

Publication number Publication date
ES2152560T3 (en) 2001-02-01
US6136106A (en) 2000-10-24
DE19532252A1 (en) 1997-03-06
BR9610546A (en) 1999-07-06
JP3664315B2 (en) 2005-06-22
CN1194014A (en) 1998-09-23
US6485681B1 (en) 2002-11-26
KR100258754B1 (en) 2000-06-15
DE19532252C2 (en) 1999-12-02
JPH11501991A (en) 1999-02-16
KR19990043982A (en) 1999-06-25
GR3035368T3 (en) 2001-05-31
ATE197821T1 (en) 2000-12-15
DE59606173D1 (en) 2001-01-04
CN1066493C (en) 2001-05-30
EP0871791A1 (en) 1998-10-21
PT871791E (en) 2001-03-30
DK0871791T3 (en) 2000-12-27
WO1997009459A1 (en) 1997-03-13

Similar Documents

Publication Publication Date Title
EP0871791B1 (en) Process for manufacturing cylinder liners
EP0858517B1 (en) Process for manufacturing thin pipes
DE19523484C2 (en) Method for producing a cylinder liner from a hypereutectic aluminum / silicon alloy for casting into a crankcase of a reciprocating piston machine and cylinder liner produced thereafter
EP0848760B1 (en) Process for manufacturing cylinder liners for internal combustion engines
DE4438550C2 (en) Process for producing a cylinder liner cast from a hypereutectic aluminum-silicon alloy into a crankcase of a reciprocating piston machine
DE2709844C2 (en) Process for the production of hollow bodies from AlSi alloys by extrusion or extrusion of granulate and its application
EP0491978A1 (en) Cylinder block for internal combustion engine
EP1124660B1 (en) A cylinder crank case, method for the manufacture of a cylinder liner therefor and method for the production of the cylinder crank case with said cylinder liners
DE69806596T2 (en) METHOD FOR PRODUCING ALUMINUM TAPES BY ROLLING BAND CASTING
EP1444421B1 (en) Method for the production of a valve seat
DE69729488T2 (en) STOPPING AND DORN BAR FOR ROLLING A SEAMLESS STEEL TUBE AND METHOD FOR PRODUCING A SEAMLESS STEEL TUBE
DE69221690T2 (en) ROTOR FOR OIL PUMP FROM AN ALUMINUM ALLOY AND ITS PRODUCTION METHOD
DE19820976A1 (en) Spray compacted and shaped hypereutectic aluminum-silicon alloy cylinder liner blank for an internal combustion engine crankcase
DE10156925A1 (en) Hardenable copper alloy as a material for the production of casting molds
WO2005038073A2 (en) Cylinder lining comprising an exterior coating of two layers and method for sealing or embedding said lining to form a composite body
DE69510360T2 (en) Bimetallic foil tape for plain bearings and process for making this tape
DE10043108A1 (en) Production of a metallurgical toughened bond between a coated insert and a casting material comprises applying a first thin layer to the insert, applying a second thin layer and casting the casting material against the surface of the insert
DE3810497C2 (en) Process for producing an aluminum alloy with excellent kneadability
DE69106418T2 (en) Process for a continuous metal collar between cylinder liner and crankcase casting of an internal combustion engine.
DE3835253A1 (en) SUBJECT OF AN ALUMINUM SILICON ALLOY AND METHOD FOR THE PRODUCTION THEREOF
EP1622734B1 (en) Method for centrifugal casting
DE102017124763A1 (en) METHOD FOR METALLURGIC BINDING OF A CYLINDER BUSHING IN A BORE IN A MOTOR BLOCK
DE19723392C2 (en) Valve seat
DE2611247C3 (en) Cast iron manufacturing process
DE69316488T2 (en) Process for hot forging at ultra high temperature

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980324

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RTI1 Title (correction)

Free format text: PROCESS FOR MANUFACTURING CYLINDER LINERS

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20000414

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

REF Corresponds to:

Ref document number: 197821

Country of ref document: AT

Date of ref document: 20001215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20001129

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REF Corresponds to:

Ref document number: 59606173

Country of ref document: DE

Date of ref document: 20010104

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ISLER & PEDRAZZINI AG

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2152560

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20001220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010828

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020301

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20110824

Year of fee payment: 16

Ref country code: DK

Payment date: 20110822

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20120821

Year of fee payment: 17

Ref country code: FI

Payment date: 20120813

Year of fee payment: 17

Ref country code: SE

Payment date: 20120821

Year of fee payment: 17

Ref country code: GB

Payment date: 20120821

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20120821

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20120828

Year of fee payment: 17

Ref country code: FR

Payment date: 20120906

Year of fee payment: 17

Ref country code: BE

Payment date: 20120824

Year of fee payment: 17

Ref country code: IT

Payment date: 20120823

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20120228

Year of fee payment: 17

Ref country code: NL

Payment date: 20120821

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20120813

Year of fee payment: 17

BERE Be: lapsed

Owner name: *ERBSLOH A.G.

Effective date: 20130831

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20140228

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20140301

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: DK

Ref legal event code: EBP

Effective date: 20130831

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 197821

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130828

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130828

REG Reference to a national code

Ref country code: GR

Ref legal event code: ML

Ref document number: 20010400195

Country of ref document: GR

Effective date: 20140305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130829

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130828

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140301

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130828

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130828

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130828

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130902

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20140905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140821

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130829

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59606173

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160301