EP0854939A2 - Bewehrungsteil, dessen grundwerkstoff austenitisches gusseisen ist - Google Patents
Bewehrungsteil, dessen grundwerkstoff austenitisches gusseisen istInfo
- Publication number
- EP0854939A2 EP0854939A2 EP96945137A EP96945137A EP0854939A2 EP 0854939 A2 EP0854939 A2 EP 0854939A2 EP 96945137 A EP96945137 A EP 96945137A EP 96945137 A EP96945137 A EP 96945137A EP 0854939 A2 EP0854939 A2 EP 0854939A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- austenitic
- reinforcement part
- ledeburitic
- remelting
- base material
- 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.)
- Granted
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
-
- 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
- F05C2251/00—Material properties
- F05C2251/04—Thermal properties
- F05C2251/042—Expansivity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
- Y10S148/903—Directly treated with high energy electromagnetic waves or particles, e.g. laser, electron beam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49249—Piston making
- Y10T29/49256—Piston making with assembly or composite article making
- Y10T29/49261—Piston making with assembly or composite article making by composite casting or molding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
- Y10T428/1275—Next to Group VIII or IB metal-base component
- Y10T428/12757—Fe
Definitions
- the invention relates to a reinforcement part, the base material of which is austenitic cast iron and which is intermetally connected to a motor part made of an aluminum-based alloy, in particular a piston.
- Reinforcement parts of the generic type are used in particular as ring girders, occasionally also as trough edge protection in aluminum pistons for diesel engines.
- connection of the reinforcement part which usually consists of austenitic GGL, to the piston material is produced using the Alfin method known in the prior art since approx. 1950, by immersing the reinforcement part in an AlSi melt before the piston material is cast around it an intermetallic layer is formed on the surface of the reinforcement part.
- the invention is therefore concerned with the problem of increasing the strength and the reproducibility of the intermetallic bond in the generic reinforcement parts regardless of whether the base material used has GGG or GGL graphite formation.
- An austenitic-ledeburitic structure is to be understood here as a structure, preferably formed by remelting austenitic cast iron, in which austenite and ledeburite are present side by side.
- the surface of the reinforcement part lying in the area of the intermetallic bond can either be entirely or only in Partial areas - in the case of ring bearers, preferably in the area of the ring bearer back - are formed by remelting austenitic-ledeburitic.
- Laser, induction or TIG remelting methods come into consideration as methods for remelting the reinforcement material.
- a further possibility for producing reinforcement parts from austenitic cast iron with an austenitic-ledeburitic surface is chilled die casting.
- ring carriers With ring carriers, however, the problem arises that they can no longer be produced by centrifugal casting and that, owing to the poor machinability of the leather bit, they cannot be machined from cast bushings as usual, but must also be machined by cut-off and shape grinding or a ⁇ need to be poured.
- FIG. 1 shows a ring carrier with austenitic-ledeburitically remelted ring carrier back in cross section
- a ring carrier 1 with two ring grooves 2a and 2b for receiving a piston ring each has an austenitic-ledeburitic remelting zone 4 formed on the ring carrier back 3 by TIG remelting.
- the ring carrier material consists of GGL-NiCuCr 15 6 2 with approx.2.6% C, 2.1% Si, 1.2% Mn, 15% Ni, 1.5% Cr and 6% Cu, the rest Fe.
- This ring carrier is refined in an AlSi melt, placed in a casting mold and cast with the piston base material AlSil2CuNiMg if the Alfin layer has not yet solidified.
- intermetallic connecting layer 7 At the boundary between remelting zone 5 and piston base material 6 is the intermetallic connecting layer 7, which has a significantly increased bond strength compared to the previously known alfin layers.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19537848 | 1995-10-11 | ||
DE19537848A DE19537848A1 (de) | 1995-10-11 | 1995-10-11 | Bewehrungsteil, dessen Grundwerkstoff austenitisches Gußeisen ist |
PCT/DE1996/001809 WO1997013396A2 (de) | 1995-10-11 | 1996-09-20 | Bewehrungsteil, dessen grundwerkstoff austenitisches gusseisen ist |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0854939A2 true EP0854939A2 (de) | 1998-07-29 |
EP0854939B1 EP0854939B1 (de) | 1999-04-21 |
Family
ID=7774579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96945137A Expired - Lifetime EP0854939B1 (de) | 1995-10-11 | 1996-09-20 | Bewehrungsteil, dessen grundwerkstoff austenitisches gusseisen ist |
Country Status (6)
Country | Link |
---|---|
US (1) | US6063509A (de) |
EP (1) | EP0854939B1 (de) |
JP (1) | JPH11515055A (de) |
BR (1) | BR9611036A (de) |
DE (2) | DE19537848A1 (de) |
WO (1) | WO1997013396A2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19956425A1 (de) * | 1999-11-24 | 2001-05-31 | Mahle Gmbh | Kolben für Verbrennungsmotoren |
DE10103896A1 (de) * | 2001-01-30 | 2002-08-08 | Mahle Gmbh | Verfahren zur Vorbehandlung eines Ringträgers vor dem Alfinieren |
DE10157478A1 (de) * | 2001-11-23 | 2003-06-05 | Fne Gmbh | Metall-Verbundwerkstoff und Verfahren zur Herstellung eines Metall-Verbundwerkstoffs |
CN101460769A (zh) * | 2006-04-08 | 2009-06-17 | Ks科尔本施密特有限公司 | 配有两个环形槽的用于内燃机的活塞,其中一个环形槽具有一个活塞环槽镶圈 |
JP5101838B2 (ja) * | 2006-05-16 | 2012-12-19 | ヤンマー株式会社 | 金属部材の表面硬化方法 |
DE102006043301A1 (de) * | 2006-09-14 | 2008-03-27 | Mahle International Gmbh | Ringträger und Verfahren zu seiner Herstellung |
DE102006043302A1 (de) * | 2006-09-14 | 2008-03-27 | Mahle International Gmbh | Ringträger und Verfahren zu seiner Herstellung |
DE102011083994A1 (de) | 2010-10-05 | 2012-04-05 | Ks Kolbenschmidt Gmbh | Verbesserungen an einem Brennraummuldenrand und an einem Brennraummuldengrund eines Kolbens einer Brennkraftmaschine |
DE102011108126A1 (de) * | 2011-07-21 | 2013-01-24 | Universität Siegen | Gussbauteil, Karosseriebauteil und Verfahren zu dessen Herstellung |
WO2013163968A1 (de) * | 2012-05-03 | 2013-11-07 | Federal-Mogul Burscheid Gmbh | Verfahren zur herstellung metallischer gleitringdichtungen |
CN104561752A (zh) * | 2014-12-25 | 2015-04-29 | 山东滨州渤海活塞股份有限公司 | 一种活塞用稀有难熔金属增强奥氏体铸铁材料及制备方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4025366A (en) * | 1973-01-17 | 1977-05-24 | Audi Nsu Auto Union Aktiengesellschaft | Method of making rotary piston engine cast iron interior seals by quench hardening |
DE2618775A1 (de) * | 1976-04-29 | 1977-11-17 | Goetzewerke | Reibend beanspruchte maschinenteile aus gusseisen mit ledeburitischer laufflaeche und ihr herstellungsverfahren |
DE2627329C2 (de) * | 1976-06-18 | 1981-11-19 | Mahle Gmbh, 7000 Stuttgart | Austenitisches Gußeisen |
BR7804521A (pt) * | 1978-07-12 | 1980-01-22 | Leve Metal Ind Com Sa | Processo para produzir pistao mediante solda por fusao e o produto resultante |
JPS602381B2 (ja) * | 1978-08-12 | 1985-01-21 | マツダ株式会社 | Al合金製ピストンの製造法 |
ZA811792B (en) * | 1980-03-21 | 1982-10-27 | Dana Corp | Method of bonding piston ring insert |
US4343173A (en) * | 1980-07-24 | 1982-08-10 | Redicon Corporation | Double action cupper having improved can removal means |
DD154726A1 (de) * | 1980-08-07 | 1982-04-14 | Lutz Buechner | Verfahren zum partiellen umschmelzverdeln an kolben |
DE3147461C2 (de) * | 1981-12-01 | 1983-10-13 | Goetze Ag, 5093 Burscheid | Verschleißfeste Gußeisenlegierung hoher Festigkeit mit sphärolithischer Graphitausscheidung, ihr Herstellungsverfahren und ihre Verwendung |
BR8200106A (pt) * | 1982-01-11 | 1983-09-13 | Metal Leve Sa | Processo para fabricacao de porta-aneis por metalurgia do po,a partir de ligas ferrosas austeniticas |
DE3418405A1 (de) * | 1983-05-18 | 1984-11-29 | Mazda Motor Corp., Hiroshima | Verfahren zur herstellung von gussteilen aus aluminiumlegierung und aus einer aluminiumlegierung bestehender kolben |
BR8700527A (pt) * | 1987-01-29 | 1988-08-16 | Metal Leve Sa | Processo de fabricacao de embolo e embolo para motores de combustao interna |
DE3932328A1 (de) * | 1989-09-28 | 1991-04-11 | Opel Adam Ag | Verfahren zur bearbeitung von durch reibung hochbeanspruchten flaechen in brennkraftmaschinen und vorrichtung zur durchfuehrung des verfahrens |
DE4010474A1 (de) * | 1990-03-31 | 1991-10-02 | Kolbenschmidt Ag | Leichtmetallkolben |
JP2886266B2 (ja) * | 1990-05-31 | 1999-04-26 | 本田技研工業株式会社 | 内燃機関用動弁機構のカムシャフトの製造方法 |
DE4221448A1 (de) * | 1992-06-30 | 1994-01-13 | Mahle Gmbh | Bewehrungsmaterial für Kolben von Verbrennungsmotoren |
DE4325864A1 (de) * | 1993-08-02 | 1995-05-11 | Mahle Gmbh | Gießtechnisches Verfahren zur Herstellung eines Bauteiles, insbesondere Kolben, bestehend aus zwei unterschiedlichen Werkstoffen |
DE19525863A1 (de) * | 1995-07-15 | 1997-01-16 | Ae Goetze Gmbh | Gleitringdichtung für die Laufwerke von Gleiskettenfahrzeugen |
-
1995
- 1995-10-11 DE DE19537848A patent/DE19537848A1/de not_active Withdrawn
-
1996
- 1996-09-20 US US09/051,051 patent/US6063509A/en not_active Expired - Fee Related
- 1996-09-20 DE DE59601734T patent/DE59601734D1/de not_active Expired - Fee Related
- 1996-09-20 WO PCT/DE1996/001809 patent/WO1997013396A2/de active IP Right Grant
- 1996-09-20 JP JP9514614A patent/JPH11515055A/ja not_active Ceased
- 1996-09-20 BR BR9611036-8A patent/BR9611036A/pt not_active IP Right Cessation
- 1996-09-20 EP EP96945137A patent/EP0854939B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9713396A2 * |
Also Published As
Publication number | Publication date |
---|---|
US6063509A (en) | 2000-05-16 |
JPH11515055A (ja) | 1999-12-21 |
WO1997013396A3 (de) | 1997-06-05 |
DE19537848A1 (de) | 1997-04-17 |
DE59601734D1 (de) | 1999-05-27 |
WO1997013396A2 (de) | 1997-04-17 |
EP0854939B1 (de) | 1999-04-21 |
BR9611036A (pt) | 1999-09-28 |
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