WO2005093244A1 - Kolben für einen verbrennungsmotor, verfahren zur herstellung eines kolbens sowie verwendung einer kupferlegierung zur herstellung eines kolbens - Google Patents
Kolben für einen verbrennungsmotor, verfahren zur herstellung eines kolbens sowie verwendung einer kupferlegierung zur herstellung eines kolbens Download PDFInfo
- Publication number
- WO2005093244A1 WO2005093244A1 PCT/EP2005/002497 EP2005002497W WO2005093244A1 WO 2005093244 A1 WO2005093244 A1 WO 2005093244A1 EP 2005002497 W EP2005002497 W EP 2005002497W WO 2005093244 A1 WO2005093244 A1 WO 2005093244A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- copper alloy
- nickel
- silicon
- amount
- Prior art date
Links
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
- F02F3/00—Pistons
- F02F3/0084—Pistons the pistons being constructed from specific materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
-
- 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
- F05C2201/04—Heavy metals
- F05C2201/0469—Other heavy metals
- F05C2201/0475—Copper or alloys thereof
Definitions
- Piston for an internal combustion engine method for producing a piston and use of a copper alloy for producing a piston
- the invention relates to a piston for an internal combustion engine, a method for producing such a piston and the use of a copper alloy for producing such a piston.
- steel is used as the piston material instead of aluminum.
- steel pistons have a higher weight and a poorer thermal conductivity than Aluminum pistons.
- the poor thermal conductivity means, for example, that the pistons have to be provided with a cooling channel.
- a steel piston has a comparatively high piston temperature despite an integrated cooling channel. In particular, this is significantly higher than that of comparable aluminum pistons. This leads disadvantageously to the proportion of nitrogen oxides in the exhaust gas being higher.
- a comparatively hot piston reduces the "degree of filling" of the combustion chamber with air, which leads to a reduction in performance.
- EP 0 712 340 B1 discloses a casting process for producing a piston, in which a first workpiece, which consists of an alloy based on iron or copper, is cast around with an alloy based on aluminum.
- a light metal piston has a combustion chamber trough with reinforcement, which consists of a copper alloy due to an insert.
- US 2,241,815 describes a copper casting alloy which is described as being suitable for structural parts in the electrical and mechanical field.
- EP 1 158 062 B1 discloses the use of a copper-zinc-aluminum kneading material for the production of bearing bushes, for example for pistons of internal combustion engines.
- DE 44 15 629 Cl relates to the use of a copper-nickel-silicon alloy for the production of casting pistons for die casting machines.
- DE 430 188 C discloses a piston for internal combustion engines which consists of a steel or iron jacket and a hard-soldered base of an alloy made of copper, the base being drawn close to the piston pin eyes.
- DE 44 14 095 AI discloses a method for producing a composite component, for example a piston, in which a ring carrier and, in certain embodiments, parts of the piston head surface can consist of a cast part made of a copper alloy.
- the object of the invention is to provide a piston for an internal combustion engine which is improved in terms of its properties and economical producibility, a method for its production and a novel use of a copper alloy.
- a piston for an internal combustion engine is made of a copper alloy in a new way.
- the piston consists exclusively of a copper alloy in the following sense.
- the piston does not have individual parts that are later cast or inserted with a different alloy. Rather, the base body of the piston, as mentioned, consists entirely of a copper alloy.
- the piston can be coated so that, with the exception of an optional coating, it consequently consists entirely of a copper alloy.
- copper alloys can be shaped much more easily and cost-effectively than steels, which usually have to be forged.
- a solution-annealed copper alloy can be formed, for example, by extrusion.
- Tool wear is significantly reduced compared to machining steel pistons.
- pistons made of copper alloys are comparable to steel pistons.
- the mechanical strength is also comparable and has proven in particular to meet the requirements that apply to use as an engine piston.
- copper alloys also offer the advantage that the wall thicknesses only have to be made as thick as is necessary due to the strength requirements because of the good deformability of the copper alloys. In this way, weight can be saved in an advantageous manner.
- the wall thicknesses of steel pistons are sometimes higher than required because of the strength requirements due to the poor deformability of the steel.
- the invention thus creates a piston of an internal combustion engine which meets the prevailing requirements, is improved in particular with regard to the temperatures and is also economically producible. Preferred developments of the piston according to the invention are described in the further claims.
- an alloy composition which contains 1% to 7% nickel and / or 0.2% to 5% silicon is currently preferred, the rest consisting of copper. 2.5% to 7% nickel and / or more than 1.5% to 5% silicon are further preferred. Even more preferred are more than 4%, in particular more than 5% to 7% nickel and / or more than 2% to 5% silicon.
- the copper alloy contains up to 5% aluminum.
- An increase in strength could also be observed if the alloy contains at least one of the following elements in the stated amount: up to 4% tin, up to 30% zinc, up to 5% iron and / or up to 5% manganese, up to 1% cobalt, up to 2% chromium.
- the piston can be at least partially coated, which has advantages in terms of oxidation protection.
- the piston according to the invention made of a copper alloy can also have a cooling channel in certain applications, it is currently preferred with regard to the production costs to design the piston solidly, in other words without a cooling channel.
- the above-mentioned object is also achieved by a method for producing a piston for an internal combustion engine, in which the piston is manufactured from a copper alloy.
- This provides an inexpensive method for producing an engine piston, which has improved properties, particularly with regard to the prevailing temperatures. Due to the favorable properties of the copper alloy mentioned above, e.g. The ease of formability and the possibility of dispensing with a cooling channel make the manufacturing process extremely economical.
- the alloy is then preferably solution-annealed at, for example, 750 ° C. to 950 ° C., which is favorable for the deformability. This is followed by cooling, preferably a comparatively rapid cooling, which is favorable for avoiding excretions.
- the piston is finally machined in the course of the manufacturing process in a conventional manner and in particular can be coated, as already described above for the piston.
- the object on which the invention is based is finally achieved by using a copper alloy for producing a piston for an internal combustion engine.
- a copper alloy is used to manufacture the piston.
- This use leads in a novel and advantageous manner to an economically producible piston with improved Characteristics.
- the copper alloys already explained above are again preferred.
- a flask made of a copper alloy with 1% to 7% nickel, 0.2% to 5% silicon, up to 5% aluminum, up to 4% tin, up to 30% zinc, up to 5% iron and up to 5% manganese produced.
- the alloy was cast in a continuous casting process and then extruded.
- the alloy was then solution annealed at 750 ° C to 950 ° C and then rapidly cooled. In this way, excretions could be avoided. Individual sections were separated from this solution-annealed strand, heated and shaped into pistons. This deformation is advantageously carried out by extrusion.
- the piston blank obtained in this way was cured at 350 ° C. to 550 ° C. and for 0.5 to 10 hours and finally machined. As experiments show, it was possible to obtain a flask which has improved properties, particularly with regard to the temperature resistance.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007503239A JP2007529667A (ja) | 2004-03-17 | 2005-03-09 | 内燃機関用ピストン、ピストンの製造方法およびピストン製造における銅合金の使用 |
US10/592,856 US20080000444A1 (en) | 2004-03-17 | 2005-03-09 | Piston for an Internal Combustion Engine, Method for Producing Said Piston and Use of a Copper Alloy in the Production of a Piston |
EP05715883A EP1725762A1 (de) | 2004-03-17 | 2005-03-09 | Kolben für einen verbrennungsmotor, verfahren zur herstellung eines kolbens sowie verwendung einer kupferlegierung zur herstellung eines kolbens |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004013181.3 | 2004-03-17 | ||
DE102004013181A DE102004013181B3 (de) | 2004-03-17 | 2004-03-17 | Kolben für einen Verbrennungsmotor, Verfahren zur Herstellung eines Kolbens sowie Verwendung einer Kupferlegierung zur Herstellung eines Kolbens |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005093244A1 true WO2005093244A1 (de) | 2005-10-06 |
Family
ID=34877618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/002497 WO2005093244A1 (de) | 2004-03-17 | 2005-03-09 | Kolben für einen verbrennungsmotor, verfahren zur herstellung eines kolbens sowie verwendung einer kupferlegierung zur herstellung eines kolbens |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080000444A1 (de) |
EP (1) | EP1725762A1 (de) |
JP (1) | JP2007529667A (de) |
DE (1) | DE102004013181B3 (de) |
WO (1) | WO2005093244A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007029991A1 (de) * | 2007-06-28 | 2009-01-02 | Wieland-Werke Ag | Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung |
US20090214380A1 (en) * | 2005-12-14 | 2009-08-27 | Gebr. Kemper Gmbh & Co. Kg Metallwerke | Low-migration copper alloy |
EP3040431A1 (de) * | 2014-12-30 | 2016-07-06 | Avedis Zildjian Co. | Nckel-messing-becken mit niedrigem nickelgehalt |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006030699B4 (de) * | 2006-06-30 | 2014-10-02 | Daimler Ag | Gegossener Stahlkolben für Verbrennungsmotoren |
CN101440445B (zh) | 2008-12-23 | 2010-07-07 | 路达(厦门)工业有限公司 | 无铅易切削铝黄铜合金及其制造方法 |
US20100155011A1 (en) * | 2008-12-23 | 2010-06-24 | Chuankai Xu | Lead-Free Free-Cutting Aluminum Brass Alloy And Its Manufacturing Method |
US9163579B2 (en) * | 2011-11-28 | 2015-10-20 | Federal-Mogul Corporation | Piston with anti-carbon deposit coating and method of construction thereof |
CN110366600A (zh) | 2017-01-06 | 2019-10-22 | 美题隆公司 | 铜镍锡合金活塞压缩环 |
PL3565912T3 (pl) * | 2017-01-06 | 2021-10-11 | Materion Corporation | Pierścienie tłokowe uszczelniające ze stopów miedzi |
DE102017119967A1 (de) | 2017-08-31 | 2019-02-28 | Schaeffler Technologies AG & Co. KG | Herstellungsverfahren, Kolbenrohling, Kolben sowie Axialkolbenmaschine mit dem Kolben |
CN112840052A (zh) * | 2018-03-27 | 2021-05-25 | 万腾荣公司 | 具有增强的导热性和耐磨性的铜合金组合物 |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE430188C (de) | 1924-09-30 | 1926-06-12 | Hans Frohloff | Kolben fuer Explosionsmotoren |
US1700604A (en) | 1925-12-24 | 1929-01-29 | Heinrich Marzahn | Internal-combustion-engine piston and process for making the same |
DE597938C (de) | 1931-08-01 | 1934-06-01 | Metallgesellschaft Ag | Verwendung von Kupferlegierungen fuer Gegenstaende mit hoher Warmhaerte |
DE655547C (de) * | 1936-05-21 | 1938-01-18 | Wilhelm Kroll Dr Ing | Verwendung von Kupfer-Eisen-Legierungen fuer Bauteile von Kraftmaschinen |
DE657036C (de) * | 1935-11-15 | 1938-02-22 | Jean Bonfils | Verwendung von Kupfer-Aluminium-Legierungen fuer Kolben |
GB503753A (en) * | 1937-07-09 | 1939-04-11 | P R Mallory & Company Inc | Copper alloys |
US2241815A (en) | 1938-08-12 | 1941-05-13 | Mallory & Co Inc P R | Method of treating copper alloy castings |
DE1154642B (de) * | 1960-09-08 | 1963-09-19 | Ver Deutsche Metallwerke Ag | Aluminiumhaltige Mehrstoffbronzen, die sich insbesondere durch hohe Warmfestigkeit und chemische Bestaendigkeit auszeichnen |
JPS5524950A (en) * | 1978-08-11 | 1980-02-22 | Hitachi Ltd | Manufacture of graphite-dispersed cast copper alloy |
FR2500485A1 (fr) * | 1981-02-23 | 1982-08-27 | Cierpucha Marie | Section des pieces en cuivre ou en alliages de cuivre, contre la corrosion seche ou humide |
DE3144123A1 (de) | 1981-11-06 | 1983-05-19 | Karl Schmidt Gmbh, 7107 Neckarsulm | Leichtmetallkolben |
DE4415629C1 (de) | 1994-05-04 | 1995-08-17 | Wieland Werke Ag | Verwendung einer Kupfer-Nickel-Silizium-Legierung zur Herstellung von Gießkolben für Druckgießmaschinen |
DE4414095A1 (de) | 1994-04-22 | 1995-10-26 | Alcan Gmbh | Verfahren zum Verbinden zweier Werkstücke aus Metall zu einem Verbundbauteil |
EP0712340A1 (de) | 1993-08-02 | 1996-05-22 | Mahle Gmbh | Giesstechnisches verfahren zur herstellung eines bauteiles, insbesondere kolben, bestehend aus zwei unterschiedlichen werkstoffen |
EP1158062B1 (de) | 2000-05-17 | 2002-11-27 | Wieland-Werke AG | Kupfer-Zink-Aluminium-Knetwerkstoff und dessen Verwendung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3911891A (en) * | 1973-08-13 | 1975-10-14 | Robert D Dowell | Coating for metal surfaces and method for application |
JPH083135B2 (ja) * | 1991-02-07 | 1996-01-17 | 大同メタル工業株式会社 | 耐摩耗性銅合金 |
US6070323A (en) * | 1997-02-12 | 2000-06-06 | Yamaha Hatsudoki Kabushiki Kaisha | Piston for internal combustion engine and material therefore |
US6419769B1 (en) * | 1998-09-08 | 2002-07-16 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Aluminum-silicon alloy having improved properties at elevated temperatures and process for producing cast articles therefrom |
-
2004
- 2004-03-17 DE DE102004013181A patent/DE102004013181B3/de not_active Expired - Fee Related
-
2005
- 2005-03-09 WO PCT/EP2005/002497 patent/WO2005093244A1/de not_active Application Discontinuation
- 2005-03-09 JP JP2007503239A patent/JP2007529667A/ja active Pending
- 2005-03-09 US US10/592,856 patent/US20080000444A1/en not_active Abandoned
- 2005-03-09 EP EP05715883A patent/EP1725762A1/de not_active Withdrawn
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE430188C (de) | 1924-09-30 | 1926-06-12 | Hans Frohloff | Kolben fuer Explosionsmotoren |
US1700604A (en) | 1925-12-24 | 1929-01-29 | Heinrich Marzahn | Internal-combustion-engine piston and process for making the same |
DE597938C (de) | 1931-08-01 | 1934-06-01 | Metallgesellschaft Ag | Verwendung von Kupferlegierungen fuer Gegenstaende mit hoher Warmhaerte |
DE657036C (de) * | 1935-11-15 | 1938-02-22 | Jean Bonfils | Verwendung von Kupfer-Aluminium-Legierungen fuer Kolben |
DE655547C (de) * | 1936-05-21 | 1938-01-18 | Wilhelm Kroll Dr Ing | Verwendung von Kupfer-Eisen-Legierungen fuer Bauteile von Kraftmaschinen |
GB503753A (en) * | 1937-07-09 | 1939-04-11 | P R Mallory & Company Inc | Copper alloys |
US2241815A (en) | 1938-08-12 | 1941-05-13 | Mallory & Co Inc P R | Method of treating copper alloy castings |
DE1154642B (de) * | 1960-09-08 | 1963-09-19 | Ver Deutsche Metallwerke Ag | Aluminiumhaltige Mehrstoffbronzen, die sich insbesondere durch hohe Warmfestigkeit und chemische Bestaendigkeit auszeichnen |
JPS5524950A (en) * | 1978-08-11 | 1980-02-22 | Hitachi Ltd | Manufacture of graphite-dispersed cast copper alloy |
FR2500485A1 (fr) * | 1981-02-23 | 1982-08-27 | Cierpucha Marie | Section des pieces en cuivre ou en alliages de cuivre, contre la corrosion seche ou humide |
DE3144123A1 (de) | 1981-11-06 | 1983-05-19 | Karl Schmidt Gmbh, 7107 Neckarsulm | Leichtmetallkolben |
EP0712340A1 (de) | 1993-08-02 | 1996-05-22 | Mahle Gmbh | Giesstechnisches verfahren zur herstellung eines bauteiles, insbesondere kolben, bestehend aus zwei unterschiedlichen werkstoffen |
DE4414095A1 (de) | 1994-04-22 | 1995-10-26 | Alcan Gmbh | Verfahren zum Verbinden zweier Werkstücke aus Metall zu einem Verbundbauteil |
DE4415629C1 (de) | 1994-05-04 | 1995-08-17 | Wieland Werke Ag | Verwendung einer Kupfer-Nickel-Silizium-Legierung zur Herstellung von Gießkolben für Druckgießmaschinen |
EP1158062B1 (de) | 2000-05-17 | 2002-11-27 | Wieland-Werke AG | Kupfer-Zink-Aluminium-Knetwerkstoff und dessen Verwendung |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 004, no. 054 (C - 008) 23 April 1980 (1980-04-23) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090214380A1 (en) * | 2005-12-14 | 2009-08-27 | Gebr. Kemper Gmbh & Co. Kg Metallwerke | Low-migration copper alloy |
DE102007029991A1 (de) * | 2007-06-28 | 2009-01-02 | Wieland-Werke Ag | Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung |
DE102007063643B4 (de) * | 2007-06-28 | 2012-07-26 | Wieland-Werke Ag | Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung |
DE102007029991B4 (de) * | 2007-06-28 | 2013-08-01 | Wieland-Werke Ag | Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung |
EP3040431A1 (de) * | 2014-12-30 | 2016-07-06 | Avedis Zildjian Co. | Nckel-messing-becken mit niedrigem nickelgehalt |
Also Published As
Publication number | Publication date |
---|---|
US20080000444A1 (en) | 2008-01-03 |
JP2007529667A (ja) | 2007-10-25 |
EP1725762A1 (de) | 2006-11-29 |
DE102004013181B3 (de) | 2005-09-22 |
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