EP0854763A2 - Verfahren zur herstellung einer intermetallischen verbindung - Google Patents
Verfahren zur herstellung einer intermetallischen verbindungInfo
- Publication number
- EP0854763A2 EP0854763A2 EP96945136A EP96945136A EP0854763A2 EP 0854763 A2 EP0854763 A2 EP 0854763A2 EP 96945136 A EP96945136 A EP 96945136A EP 96945136 A EP96945136 A EP 96945136A EP 0854763 A2 EP0854763 A2 EP 0854763A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- reinforcement part
- intermetallic
- reinforcement
- graphite
- aluminum
- 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
- 238000000034 method Methods 0.000 title claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 14
- 239000010439 graphite Substances 0.000 claims abstract description 14
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 238000007654 immersion Methods 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000012876 carrier material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005087 graphitization Methods 0.000 description 2
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
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
-
- 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
Definitions
- the invention relates to a method for producing an intermetallic connection between a motor component made of an aluminum-based alloy and a reinforcement part made of austenitic cast iron, which are connected to one another by casting technology.
- Corresponding methods are used in particular for introducing ring girders, occasionally also for introducing trough edge reinforcements in diesel engines.
- the reinforcement part is connected to the piston material using the Alfin process, which has been 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 forms an intermetallic layer on the surface of the reinforcement part.
- the invention is therefore concerned with the problem of increasing the strength of the intermetallic bond between the casting and the reinforcement part regardless of the use of a GGG or GGL material.
- An essential area of application for the method according to the invention is in the production of pistons with reinforcement parts made of austenitic cast iron according to claim 2, the reinforcement parts according to claim 3 preferably being ring carriers.
- the reinforcement parts must be annealed in an oven atmosphere with oxidizing and reducing components in order to largely avoid the formation of concentration differences due to nickel diffusion on the surface and the formation of iron oxides on the surface a surface formed in this way has a disruptive effect in the subsequent process steps.
- Fig. 1 shows a cross section of an Alfin bond according to the invention with edge-graphitized reinforcement part
- Fig. 2 shows a cross section of an Alfin bond without edge graphitization for comparison.
- a reinforcement part made of austenitic cast material 1 with lamellar graphite formation is connected to a piston material AlSil2CuNiMg 2 by an Alfin layer 3.
- the austenitic cast material is edge-graphitized in the area of the alfin bond to a depth of approx. 100-150 ⁇ m.
- the de-graphitization is carried out by annealing the casting material in exogas at temperatures of at least o o
- the content of CO and CO and the dew point must be set so that there is a good decarburizing effect in order to achieve short annealing times. In the present case, the glow time was 25 minutes.
- exogas which has both reducing and oxidizing components, largely avoids differences in concentration and the formation of oxides on the surface.
- the further process steps correspond to the Alfin process known in the prior art.
- the compact graphite lamellae instead of the compact graphite lamellae, only loosened, non-coherent, pearl-cord-shaped oxides can be seen in the alfin layer 3, which do not have an effect on the strength of the alfin layer, or at least have a significantly lower effect than the graphite lamellae of an unannealed austenitic cast iron.
- FIG. 2 A conventional alfin layer is shown in FIG. 2 only for comparison. There, the Alfin layer 4 is clearly penetrated by graphite lamellae, which weaken the Alfin bond, since they act as defects.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19537847 | 1995-10-11 | ||
DE19537847A DE19537847A1 (de) | 1995-10-11 | 1995-10-11 | Bewehrungsteil, dessen Grundwerkstoff austenitisches Gußeisen ist |
PCT/DE1996/001808 WO1997013597A2 (de) | 1995-10-11 | 1996-09-20 | Verfahren zur herstellung einer intermetallischen verbindung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0854763A2 true EP0854763A2 (de) | 1998-07-29 |
EP0854763B1 EP0854763B1 (de) | 1999-09-01 |
Family
ID=7774578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96945136A Expired - Lifetime EP0854763B1 (de) | 1995-10-11 | 1996-09-20 | Verfahren zur herstellung einer intermetallischen verbindung |
Country Status (6)
Country | Link |
---|---|
US (1) | US6112802A (de) |
EP (1) | EP0854763B1 (de) |
JP (1) | JPH11514931A (de) |
BR (1) | BR9610925A (de) |
DE (2) | DE19537847A1 (de) |
WO (1) | WO1997013597A2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU773579B2 (en) * | 2000-08-10 | 2004-05-27 | Breville Pty Ltd | Improvements in forming metallic laminates |
DE10103596A1 (de) * | 2001-01-26 | 2002-08-01 | Bruehl Eisenwerk | Verfahren zur Herstellung eines aus wenigstens zwei unterschiedlichen Metallwerkstoffen gebildeten Gußwerkstücks |
DE10103896A1 (de) * | 2001-01-30 | 2002-08-08 | Mahle Gmbh | Verfahren zur Vorbehandlung eines Ringträgers vor dem Alfinieren |
DE10137436C2 (de) * | 2001-07-31 | 2003-07-31 | Ks Kolbenschmidt Gmbh | Voralfinieren von Eingußteilen |
DE10153306B4 (de) * | 2001-10-31 | 2010-07-15 | Daimler Ag | Verfahren zum Eingießen eines Einlegeteils |
DE10157478A1 (de) * | 2001-11-23 | 2003-06-05 | Fne Gmbh | Metall-Verbundwerkstoff und Verfahren zur Herstellung eines Metall-Verbundwerkstoffs |
DE10205798A1 (de) * | 2002-02-13 | 2003-09-04 | Federal Mogul Wiesbaden Gmbh | Einsatzteil in ein Ober-und/oder Unterteil oder eine Versteifungsrippe eines Lagerstuhls |
EP1485514A1 (de) * | 2002-03-18 | 2004-12-15 | Karl Merz | Verfahren und vorrichtung zum alfinieren von bauteilen |
DE102012011992A1 (de) * | 2012-06-16 | 2013-12-19 | Volkswagen Aktiengesellschaft | Metallisches Gussbauteil und Verfahren zur Herstellung eines metallischen Gussbauteils |
DE102012220645B3 (de) * | 2012-11-13 | 2014-04-03 | Federal-Mogul Nürnberg GmbH | Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1048677B (de) * | 1959-01-15 | Mahle-Werk Gesellschaft mit be schrankter Haftung, Fellbach (Wurtt) | Verfahren zum Aufbringen eines Aluminium- bzw Alummiumoxyduberzuges auf aus einer Eisenlegierung - z B Gußeisen - bestehende und mit Leichtmetall im Druckgießverfahren zu umgießende Em lagestucke | |
US2620530A (en) * | 1945-02-07 | 1952-12-09 | United Engine & Machine Co | Manufacture of pistons |
DE901104C (de) * | 1949-11-10 | 1954-01-07 | Fairchild Engine And Airplane | Verbundgussstueck und Verfahren zu dessen Herstellung |
US2550879A (en) * | 1949-11-10 | 1951-05-01 | Fairchild Engine & Airplane | Bimetallic piston |
US2775493A (en) * | 1953-11-27 | 1956-12-25 | Gillett & Eaton Inc | Piston with head insert and process of making it |
JPS5125214B2 (de) * | 1973-02-09 | 1976-07-29 | ||
CH645562A5 (en) * | 1980-06-19 | 1984-10-15 | Sulzer Ag | Process for welding workpieces of nodular cast iron |
JPS59185567A (ja) * | 1983-04-08 | 1984-10-22 | Usui Internatl Ind Co Ltd | 接着結合してなる鋳鉄部材の前処理方法 |
IT1183114B (it) * | 1985-01-11 | 1987-10-05 | Ass Eng Italia | Pistone d'alluminio o di lega d'alluminio per motori a combustione interna |
SU1507532A1 (ru) * | 1987-10-13 | 1989-09-15 | Научно-исследовательский институт автотракторных материалов | Способ изготовлени отливок поршн из алюминиевого сплава с чугунной вставкой |
DE4010474A1 (de) * | 1990-03-31 | 1991-10-02 | Kolbenschmidt Ag | Leichtmetallkolben |
DE4019983A1 (de) * | 1990-06-22 | 1992-01-02 | Kolbenschmidt Ag | Leichtmetallkolben |
US5333668A (en) * | 1991-12-09 | 1994-08-02 | Reynolds Metals Company | Process for creation of metallurgically bonded inserts cast-in-place in a cast aluminum article |
DE4221448A1 (de) * | 1992-06-30 | 1994-01-13 | Mahle Gmbh | Bewehrungsmaterial für Kolben von Verbrennungsmotoren |
-
1995
- 1995-10-11 DE DE19537847A patent/DE19537847A1/de not_active Withdrawn
-
1996
- 1996-09-20 EP EP96945136A patent/EP0854763B1/de not_active Expired - Lifetime
- 1996-09-20 US US09/051,050 patent/US6112802A/en not_active Expired - Fee Related
- 1996-09-20 BR BR9610925A patent/BR9610925A/pt not_active IP Right Cessation
- 1996-09-20 JP JP9514613A patent/JPH11514931A/ja active Pending
- 1996-09-20 DE DE59602965T patent/DE59602965D1/de not_active Expired - Fee Related
- 1996-09-20 WO PCT/DE1996/001808 patent/WO1997013597A2/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9713597A3 * |
Also Published As
Publication number | Publication date |
---|---|
US6112802A (en) | 2000-09-05 |
DE19537847A1 (de) | 1997-04-17 |
DE59602965D1 (de) | 1999-10-07 |
BR9610925A (pt) | 1999-06-29 |
WO1997013597A3 (de) | 1997-06-05 |
JPH11514931A (ja) | 1999-12-21 |
EP0854763B1 (de) | 1999-09-01 |
WO1997013597A2 (de) | 1997-04-17 |
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