EP1017948A1 - Chemise de cylindre - Google Patents

Chemise de cylindre

Info

Publication number
EP1017948A1
EP1017948A1 EP98939470A EP98939470A EP1017948A1 EP 1017948 A1 EP1017948 A1 EP 1017948A1 EP 98939470 A EP98939470 A EP 98939470A EP 98939470 A EP98939470 A EP 98939470A EP 1017948 A1 EP1017948 A1 EP 1017948A1
Authority
EP
European Patent Office
Prior art keywords
cylinder liner
strip
cylinder
band
section
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.)
Withdrawn
Application number
EP98939470A
Other languages
German (de)
English (en)
Inventor
Peter Furrer
Willi Kerth
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.)
3A Composites International AG
Original Assignee
Alusuisse Lonza Services Ltd
Alusuisse Technology and Management Ltd
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 Alusuisse Lonza Services Ltd, Alusuisse Technology and Management Ltd filed Critical Alusuisse Lonza Services Ltd
Publication of EP1017948A1 publication Critical patent/EP1017948A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02—Cylinders designed to receive moving pistons or plungers
    • F16J10/04—Running faces; Liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K3/00—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/004—Cylinder liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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

Definitions

  • the present invention relates to a cylinder liner made of an aluminum alloy, a method for its production and its use.
  • Internal combustion engines based on the diesel or gasoline principle have a cylinder block and a crankcase upper part, or the two parts are cast in one piece to form a cylinder crankcase.
  • dry or wet cylinder liners must be arranged in cylinder crankcases and cylinder blocks made of cast aluminum.
  • the cylinder liners are made of high-quality materials such as cast iron or AI alloys.
  • the cylinder liners made of aluminum can have a cast-in fiber sleeve to further improve the properties. In some cases, the sliding and wear properties of the cylinder liners still need to be improved through special machining processes.
  • the production of the known cylinder liners either leads to heavy components or the process is complex. For reasons of economy, i.e. The low fuel requirement of the finished engine and the economical production of the engines, it is an object of the present invention to improve the cylinder liners and the method for their production.
  • the cylinder liner contains or consists of a silicon-containing aluminum alloy, the size of the Si particles or of the intermetallic phases being in the range from 1 to 20 ⁇ m
  • the size of the Si particles or intermetallic phases is preferably in the range from 2 to 5 ⁇ m.
  • the particle size distribution in the present aluminum alloy can be obtained by controlling the cooling conditions during the solidification of the aluminum alloy during a casting process. If required, the desired particle size distribution, even without coarsening, can be obtained by subsequent annealing or heat treatment in a temperature range from 300 to 550 ° C.
  • the present cylinder liner contains or consists preferably of a silicon-containing aluminum alloy of the AlSi type, the Si content being greater than 12%, expediently 12 to 40% and preferably 15 to 25%.
  • the aluminum alloys of the AlSi type can contain, for example, one or more of the elements Cu, Mn, Fe, Cr Ni etc. as further alloy elements. Further typical alloy elements can be used alone or with the alloy elements mentioned. The percentages relate to the weight. Examples of such aluminum alloys are AlSi alloys with 12 to 40%, preferably 15 to 25%, Si and optionally one or more of the further alloy elements, such as: Cu 1 to 6%,
  • the cylinder liners according to the invention can consist, for example, of a strip section of a strip casting.
  • the above-mentioned particle size distribution in the aluminum alloy is - as mentioned above - obtainable by controlling the cooling conditions when the strip solidifies during the strip casting process or by subsequent annealing or heat treatment.
  • the band section is e.g. by creating a separable seam between two opposite narrow sides, respectively. along the line of contact, a band section is formed into a cylinder liner or the band section can be formed into a tube from which the cylinder liners are cut to length.
  • Cylinder liners in the form of hollow cylinders are preferred, cut to length from a tube from a strip section of a strip casting, with longitudinal separating seam, in particular with longitudinally welded seam or cut from a tube from a spiral wound strip section of a strip casting.
  • Cylinder liners in the form of a hollow cylinder made of a spirally wound band section of a band casting are preferred, the seams of the abutting narrow sides of the band section having a separable seam, preferably a weld seam.
  • the cylinder liner is a hollow cylinder cut to length from a tube from a spirally wound band section of a band casting, the seams of the abutting narrow sides, respectively. Lines of contact, the band section have a separable seam, preferably a weld seam.
  • the cylinder liner can consist of a band section of a band casting and the inner surface, at least in the area of the cylinder running surfaces, can be made of material Inert, partial material contract or material order have changed structure.
  • the material can be removed by chemical or physical processes such as etching, the material can be applied by galvanic processes, plasma spraying, spraying, etc.
  • Existing cylinder liners can be used as dry or wet cylinder liners in engines with internal combustion based on the diesel or petrol principle.
  • the engines can be designed according to the two- as well as the four-stroke process.
  • These cylinder liners are used in engines for passenger cars and commercial vehicles, and stationary engines can also be equipped with them.
  • the cylinder liners according to the present invention have, for example, an inner diameter of at most 150 mm, suitably at most 120 mm and preferably at most 100 mm.
  • the common gasoline engines with a total displacement of 0.5 to 8 1, preferably from 1.0 to 5.0 1 and a speed range of approx. 550 to 1 100,000 rpm for engines with a smaller displacement , resp. approx.
  • the gasoline engine can work with homogeneous external or internal mixture formation and spark ignition.
  • the mixture can be formed heterogeneously in divided combustion chambers or directly in non-divided combustion chambers and with auto-ignition.
  • the aluminum alloy according to the invention can e.g. can be cast into a strip in a continuous strip casting process.
  • the strip can be produced by casting rolls, casting between steel strips, by casting between rotating caterpillars or by casting between wheel or roller and steel strip etc.
  • the thickness of the band can be, for example, from 2 to 20 mm. This can represent the final thickness of the tape. It is also possible to provide one or more rolling operations while reducing the thickness of the strip in order to achieve the final thickness of the strip from 2 to 20 mm.
  • the present invention also comprises a method for producing the cylinder liner according to the invention.
  • the aluminum alloy of the AlSi type expediently with a Si content of greater than 12%, preferably 15 to 40% and in particular 15 to 25%, is cast into a strip, for example in a strip casting process, the strip is cut to a strip section, the band section is formed into a hollow cylinder and the abutting narrow sides of the band section by applying at least one separable seam formed into a cylinder liner or formed into a tube and cut to a cylinder liner.
  • the aluminum alloy of the AlSi type can be cast into a strip in a strip casting process, the strip being re-rolled, e.g. Cold-rolled or hot-rolled to the exact final thickness, and the rolled strip cut to a strip section.
  • the strip being re-rolled, e.g. Cold-rolled or hot-rolled to the exact final thickness, and the rolled strip cut to a strip section.
  • only a calibration pass is carried out as the rolling process for the precise setting of the final thickness with a rolling degree less than 30%, preferably less than 10%.
  • the percentages relate to the total thickness.
  • the aluminum alloy of the AlSi type can be cast into a strip in a strip casting process, and the strip can be cold or hot rolled to the exact final thickness, one roller one of the strip surfaces or two rollers both strip surfaces provided with a roughness pattern and the rolled strip, which is provided with a roughness pattern on one or both sides, is cut to a strip section.
  • the roughness pattern generated by rolling facilitates e.g. the later pouring or pressing process of the cylinder liners into the cylinder crankcase or the cylinder block.
  • the roughness pattern is generated by one or more roughened rollers, in particular by one roller or a pair of rollers.
  • the roller or pair of rollers are roughened by roller grinding, sandblasting, electro-erosion, or by laser or electron radiation.
  • a roughness of the rolls of Ra 0.5 to 2 ⁇ m and preferably of about 1 ⁇ m is aimed for.
  • each of the roughened rolls produces a corresponding image of the roll pattern and an approximately corresponding roughness on the cast and correspondingly rolled strip.
  • two opposite narrow sides of the band can be brought together, forming a cylindrical hollow body, and joined to one another in a separable manner.
  • welding processes such as fusion welding processes using laser or electron beams, or friction welding processes, such as the so-called “friction stir welding” technology.
  • the welding processes are carried out or selected in such a way that the microstructure does not coarsen or only coarsens slightly in the area of the weld seam.
  • the tubes can be cut to length to the cylinder liners. This can be done by sawing or a welding process, etc.
  • the individual cylinder liners can have a length of, for example, 30 to 300 mm, preferably 50 to 200 mm and in particular 60 to 150 mm.
  • the cylinder liners or, in some cases, the Pipes can, if necessary, be rolled up and / or finely worked by overturning or grinding.
  • a method for producing the cylinder liners is preferred, according to which the band section is formed by spiral winding into a hollow cylinder or tube.
  • the abutting narrow sides of the band section will - as mentioned above - be connected to one another by welding, expediently electron beam welding, friction welding or preferably laser welding.
  • Spiral winding leads to tubes that can also be manufactured endlessly.
  • the tubes are cut to length according to the desired length of the cylinder liners, e.g. by sawing or welding etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne des chemises de cylindre, constituées d'un alliage d'aluminium du type AlSi, contenant par exemple 12 à 40 % de Si, la dimension des particules de Si ou des phases intermétalliques se situant entre 1 et 20 mu m. Ces chemises de cylindre sont destinées à des moteurs à combustion interne diesel ou à essence. Pour réaliser ces chemises, on produit une bande par coulée à partir de l'alliage d'aluminium puis la bande est tronçonnée pour former des sections de bande, et les petits côtés adjacents de la section de bande, sont façonnés pour former une chemise de cylindre ou un tube par réalisation d'au moins un joint résistant à la séparation, par exemple une soudure, et sont façonnés pour former des chemises de cylindre par tronçonnage du tube.
EP98939470A 1997-09-15 1998-09-03 Chemise de cylindre Withdrawn EP1017948A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH217097 1997-09-15
CH217097 1997-09-15
PCT/CH1998/000381 WO1999014518A1 (fr) 1997-09-15 1998-09-03 Chemise de cylindre

Publications (1)

Publication Number Publication Date
EP1017948A1 true EP1017948A1 (fr) 2000-07-12

Family

ID=4227532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98939470A Withdrawn EP1017948A1 (fr) 1997-09-15 1998-09-03 Chemise de cylindre

Country Status (3)

Country Link
EP (1) EP1017948A1 (fr)
AU (1) AU8797298A (fr)
WO (1) WO1999014518A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10324030B4 (de) * 2003-05-27 2005-04-07 Daimlerchrysler Ag Verfahren zur Herstellung einer Zylinderlaufbuchse

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51100919A (en) * 1975-03-05 1976-09-06 Hitachi Ltd Reikankakoyo aruminiumuushirikongokinto sonoseiho
JPS52124406A (en) * 1976-04-14 1977-10-19 Hitachi Ltd Connecting rod
DE2931340A1 (de) * 1979-08-02 1981-02-19 Oppermann Willi Friedrich Verfahren zum kontinuierlichen fertigen von baendern und rohren in einer produktionslinie
DE3114124A1 (de) * 1981-04-08 1982-10-28 Mahle Gmbh, 7000 Stuttgart Kolben aus aluminium mit hartoxidiertem boden
JPS60220264A (ja) * 1984-04-11 1985-11-02 Showa Alum Corp アルミニウム合金製シリンダライナ
GB2225740B (en) * 1988-11-19 1993-05-19 Glyco Metall Werke A method and a device for the manufacture of laminar material for slide elements
DE19523484C2 (de) * 1995-06-28 2002-11-14 Daimler Chrysler Ag Verfahren zum Herstellen einer Zylinderlaufbüchse aus einer übereutektischen Aluminium/Silizium-Legierung zum Eingießen in ein Kurbelgehäuse einer Hubkolbenmaschine und danach hergestellte Zylinderlaufbüchse
DE9422167U1 (de) * 1994-10-28 1999-05-12 DaimlerChrysler AG, 70567 Stuttgart In ein Kurbelgehäuse einer Hubkolbenmaschine eingegossene Zylinderlaufbüchse aus einer übereutektischen Aluminium/Silizium-Legierung
DE19532244C2 (de) * 1995-09-01 1998-07-02 Peak Werkstoff Gmbh Verfahren zur Herstellung von dünnwandigen Rohren (I)
DE19532252C2 (de) * 1995-09-01 1999-12-02 Erbsloeh Ag Verfahren zur Herstellung von Laufbuchsen
FR2742165B1 (fr) * 1995-12-12 1998-01-30 Pechiney Rhenalu Procede de fabrication de bandes minces en alliage d'aluminium a haute resistance et formabilite

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9914518A1 *

Also Published As

Publication number Publication date
WO1999014518A1 (fr) 1999-03-25
AU8797298A (en) 1999-04-05

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