WO1994000614A2 - Bewehrungsmaterial für kolben von verbrennungsmotoren - Google Patents
Bewehrungsmaterial für kolben von verbrennungsmotoren Download PDFInfo
- Publication number
- WO1994000614A2 WO1994000614A2 PCT/DE1993/000569 DE9300569W WO9400614A2 WO 1994000614 A2 WO1994000614 A2 WO 1994000614A2 DE 9300569 W DE9300569 W DE 9300569W WO 9400614 A2 WO9400614 A2 WO 9400614A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- ring carrier
- reinforcement
- austenitic
- internal combustion
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0085—Materials for constructing engines or their parts
-
- 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
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
Definitions
- the invention relates to reinforcement materials for pistons made of the basic material aluminum for internal combustion engines, in which the reinforcement material is intermetallically bound in the aluminum base material.
- the intermetallic bond is achieved in that the reinforcement material, for example in the form of a so-called ring carrier, is placed in the casting mold of an aluminum piston to be cast and cast with the aluminum melt of the piston. Before being inserted into the casting mold, the reinforcement material is immersed in an aluminum melt and placed directly from the immersion bath in the casting mold, in which the aluminum base material of the piston is cast around it, while the immersion layer on the reinforcement material is still at least superficially molten.
- this type of intermetallic bond is generally referred to as an alfine bond.
- the strength of the Alfin bond between the reinforcement material and the piston base material is high for those used in the heat treatment and machining of the pistons - occurring loads in extreme cases is not always sufficient, so that there can be an increased production scrap due to cracks in the bond layer.
- the material GGL-NI-Cu-Cr 1562 mentioned above has the following alloying elements:
- the invention is concerned with the problem of creating a reinforcement material which, without deterioration of the other properties required for a reinforcement part, such as a ring carrier, additionally has an improved binding strength compared to the adjacent aluminum base material Piston.
- this object is achieved by using an austenitic cast iron with predominantly vermicular and / or globular graphite formation, this material, when used for ring carriers, for example the alloy composition of the above-mentioned GGL-Ni-Cu Can have Cr 1562.
- Claim 2 provides an advantageous embodiment of such an austenitic cast iron.
- a regular graphite formation has a positive effect on the bond strength of the reinforcement material in a cast aluminum base material due to a uniform layer formation and low notch effect of the graphite particles incorporated in the layer. This applies to an even greater extent for a globular graphite formation.
- a particularly expedient composition of a cast iron with globular graphite formation is the subject of claim 3.
- Another alternative solution is to use an austenitic or austenitic-carbide steel.
- the improved bond strength can be explained here by the construction of a single-phase layer free of defects with increased inherent strength.
- a preferred composition of such a steel is shown in claim 5.
- Reinforcement parts made from the materials according to the invention can in particular be the ring carrier or combustion chamber bowl protector of the piston.
- the invention according to claim 7 proposes to provide only the radially inner border region of the reinforcement material made of one of the materials of claims 1-5, while the rest of the material adjoining radially outward can be a conventional ring carrier material known up to now.
- the radially inner boundary layer made of different material can also consist of nickel or a nickel-based alloy.
- the rest of the material can be, for example, the aforementioned GGL-Ni-Cu-Cr 1562 (DIN 1694) with predominantly lamellar graphite formation.
- the reinforcement material that is optimal for this type of stress can be used, while the radially inner intermetallic bond area, on the other hand, can consist of a material that is optimal for the bond.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93912635A EP0648282A1 (de) | 1992-06-30 | 1993-06-30 | Bewehrungsmaterial für kolben von verbrennungsmotoren |
JP6501952A JPH08501349A (ja) | 1992-06-30 | 1993-06-30 | 内燃機関のピストン用補強材料 |
BR9306637A BR9306637A (pt) | 1992-06-30 | 1993-06-30 | Material de reforço para pistão de motores de combustão interna |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4221448.3 | 1992-06-30 | ||
DE19924221448 DE4221448A1 (de) | 1992-06-30 | 1992-06-30 | Bewehrungsmaterial für Kolben von Verbrennungsmotoren |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1994000614A2 true WO1994000614A2 (de) | 1994-01-06 |
WO1994000614A3 WO1994000614A3 (de) | 1994-03-03 |
Family
ID=6462152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1993/000569 WO1994000614A2 (de) | 1992-06-30 | 1993-06-30 | Bewehrungsmaterial für kolben von verbrennungsmotoren |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0648282A1 (de) |
JP (1) | JPH08501349A (de) |
BR (1) | BR9306637A (de) |
DE (1) | DE4221448A1 (de) |
WO (1) | WO1994000614A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19537848A1 (de) * | 1995-10-11 | 1997-04-17 | Mahle Gmbh | Bewehrungsteil, dessen Grundwerkstoff austenitisches Gußeisen ist |
DE19537847A1 (de) * | 1995-10-11 | 1997-04-17 | Mahle Gmbh | Bewehrungsteil, dessen Grundwerkstoff austenitisches Gußeisen ist |
DE10049598C2 (de) * | 2000-10-06 | 2003-07-17 | Federal Mogul Burscheid Gmbh | Verfahren zur Herstellung eines Gußeisenwerkstoffes |
CN104532118B (zh) * | 2015-01-28 | 2016-08-24 | 滨州市正道机械制造有限公司 | 活塞镶圈专用高性能高镍奥氏体蠕墨铸铁及其制备方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2115930A5 (de) * | 1970-11-26 | 1972-07-07 | Sulzer Ag | |
DE2627329B1 (de) * | 1976-06-18 | 1977-10-20 | Mahle Gmbh | Austenitisches gusseisen |
DE2646276A1 (de) * | 1976-10-14 | 1978-04-20 | Goetzewerke | Austenitische gusseisenlegierung und verfahren fuer die herstellung von auf verschleiss beanspruchten maschinenteilen |
WO1979001103A1 (en) * | 1978-05-23 | 1979-12-13 | British Internal Combust Eng | Composite materials |
EP0110064A1 (de) * | 1982-10-09 | 1984-06-13 | Toyota Jidosha Kabushiki Kaisha | Gegenstand aus einer wärmebeständigen Leichtmetallegierung und Verfahren zu seiner Herstellung |
US4546048A (en) * | 1984-03-23 | 1985-10-08 | Dana Corporation | Composite thermal shield for engine components |
GB2200583A (en) * | 1987-01-29 | 1988-08-10 | Metal Leve Sa | Composite engine piston and its manufacture by casting |
EP0349031A1 (de) * | 1988-06-30 | 1990-01-03 | KOLBENSCHMIDT Aktiengesellschaft | Verbundguszstück |
FR2638988A1 (fr) * | 1988-11-15 | 1990-05-18 | Renault | Procede de coulee de pieces a renforcement localise telles qu'un piston bimetallique |
DE4010474A1 (de) * | 1990-03-31 | 1991-10-02 | Kolbenschmidt Ag | Leichtmetallkolben |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2405389A1 (de) * | 1974-02-05 | 1975-08-14 | Schmidt Gmbh Karl | Ringtraeger fuer leichtmetallkolben von verbrennungskraftmaschinen |
DE2533746A1 (de) * | 1975-07-28 | 1977-02-03 | Alcan Aluminiumwerke | Kolben fuer brennkraftmaschinen |
DE3626436A1 (de) * | 1986-08-05 | 1988-02-18 | Bayerische Motoren Werke Ag | Kolben |
-
1992
- 1992-06-30 DE DE19924221448 patent/DE4221448A1/de not_active Withdrawn
-
1993
- 1993-06-30 BR BR9306637A patent/BR9306637A/pt unknown
- 1993-06-30 JP JP6501952A patent/JPH08501349A/ja active Pending
- 1993-06-30 EP EP93912635A patent/EP0648282A1/de not_active Withdrawn
- 1993-06-30 WO PCT/DE1993/000569 patent/WO1994000614A2/de not_active Application Discontinuation
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2115930A5 (de) * | 1970-11-26 | 1972-07-07 | Sulzer Ag | |
DE2627329B1 (de) * | 1976-06-18 | 1977-10-20 | Mahle Gmbh | Austenitisches gusseisen |
DE2646276A1 (de) * | 1976-10-14 | 1978-04-20 | Goetzewerke | Austenitische gusseisenlegierung und verfahren fuer die herstellung von auf verschleiss beanspruchten maschinenteilen |
WO1979001103A1 (en) * | 1978-05-23 | 1979-12-13 | British Internal Combust Eng | Composite materials |
EP0110064A1 (de) * | 1982-10-09 | 1984-06-13 | Toyota Jidosha Kabushiki Kaisha | Gegenstand aus einer wärmebeständigen Leichtmetallegierung und Verfahren zu seiner Herstellung |
US4546048A (en) * | 1984-03-23 | 1985-10-08 | Dana Corporation | Composite thermal shield for engine components |
GB2200583A (en) * | 1987-01-29 | 1988-08-10 | Metal Leve Sa | Composite engine piston and its manufacture by casting |
EP0349031A1 (de) * | 1988-06-30 | 1990-01-03 | KOLBENSCHMIDT Aktiengesellschaft | Verbundguszstück |
FR2638988A1 (fr) * | 1988-11-15 | 1990-05-18 | Renault | Procede de coulee de pieces a renforcement localise telles qu'un piston bimetallique |
DE4010474A1 (de) * | 1990-03-31 | 1991-10-02 | Kolbenschmidt Ag | Leichtmetallkolben |
Non-Patent Citations (1)
Title |
---|
C.W.WEGST 'STAHLSCHL]SSEL' 1989 , VERLAG STAHLSCHL}SSEL WEGST GMBH , MARBACH *Seite 282, Standard No. 1.4435; Seite 374, SAE 30316 L = AISI 316 L* * |
Also Published As
Publication number | Publication date |
---|---|
DE4221448A1 (de) | 1994-01-13 |
EP0648282A1 (de) | 1995-04-19 |
WO1994000614A3 (de) | 1994-03-03 |
BR9306637A (pt) | 1998-12-08 |
JPH08501349A (ja) | 1996-02-13 |
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