EP0470021B1 - Verfahren zur Gestaltung eines Gusstückes aus Aluminium oder seinen Legierungen mit eingegliederten Giessläufen - Google Patents

Verfahren zur Gestaltung eines Gusstückes aus Aluminium oder seinen Legierungen mit eingegliederten Giessläufen Download PDF

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Publication number
EP0470021B1
EP0470021B1 EP91420284A EP91420284A EP0470021B1 EP 0470021 B1 EP0470021 B1 EP 0470021B1 EP 91420284 A EP91420284 A EP 91420284A EP 91420284 A EP91420284 A EP 91420284A EP 0470021 B1 EP0470021 B1 EP 0470021B1
Authority
EP
European Patent Office
Prior art keywords
tube
tubes
process according
mould
aluminium
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.)
Expired - Lifetime
Application number
EP91420284A
Other languages
English (en)
French (fr)
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EP0470021A1 (de
Inventor
Eric Darsy
Philippe Meyer
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.)
Montupet SA
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Montupet SA
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 Montupet SA filed Critical Montupet SA
Publication of EP0470021A1 publication Critical patent/EP0470021A1/de
Application granted granted Critical
Publication of EP0470021B1 publication Critical patent/EP0470021B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels
    • 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 
    • F02F1/24—Cylinder heads

Definitions

  • the invention relates to a process for producing castings of Al or its alloys according to the preamble of claim 1.
  • One (or more) main tube (s) of aluminum or one of its alloys previously shaped (s) and optionally provided with one or more several nozzles are (are) placed in the mold, in a determined position, the open ends of the tubes being able to correspond with the outside of the mold, either through the latter or through cores; closed ends can be embedded in the room.
  • the positioning of the tube (or of the tube system) in the mold ensures its centering in relation to its reference position, offers the possibility of axial expansion of the tubes and their rotation blocking.
  • the alloy of the part is then poured into the cavity of the mold after closing it; to drown the tube or tube system.
  • the penetration depth of a nozzle in the main tube is of the order of 1 mm relative to its internal surface. This positioning is fixed by the Position of the collar in case a) or by external longitudinal grooving by pushing back the end of the adjustment in case b). In the latter case, the extra thicknesses obtained on the diameter then ensure lateral tightening and the end beads of the grooves ensure the axial positioning of the fitting on the tube.
  • the positioning of the tube (or the tube system) in the mold is for example carried out by a 90 ° elbow, external to the useful part of the molded part and inserted in a core adjacent to the mold with a clearance of the order of 1 to 2 mm, for an overall length of approximately 50 cm.
  • the other end of the tube is inserted into a cylindrical housing core allowing free axial expansion of the tube but also ensuring perfect centering of the tube system in the mold.
  • the mold itself is made either of sand, or of metal, or mixed, under the usual conditions for the casting of aluminum alloys.
  • the alloys usually used are AS7G or AS5U3G in states Y20,23 or Y30, 33 according to the AFNOR standard NF-A-57702.
  • the center-to-center dimensions of the nozzles will be corrected, in relation to the desired dimensions, by a coefficient taking into account the deformations of the main tube during casting and the solidification of the part: namely elongation under the effect of the heat of the liquid metal and shrinkage when the part solidifies.
  • the casting temperature of the part is the lowest temperature allowing the good coming of the part and the non-melting of the tube.
  • the casting temperature is less than or equal to 760 ° C and preferably between 720 ° C and 740 ° C.
  • the usual internal diameters of the tubes used are generally between 3 and 15 mm.
  • the contact time between the tube system and the molten metal must be less than 10 seconds, and preferably 5 seconds.
  • the tube (or tube system) can also be cooled during the casting operation by the circulation of a cooling fluid, such as compressed air or liquid nitrogen vapor. .
  • a cooling fluid such as compressed air or liquid nitrogen vapor.
  • FIGS. 1 to 3 reproducing the conditions for casting a part of the cylinder head.
  • Figure 1 shows a sectional view of a tube and its tappings in place in a casting mold, in elevation (1A) along line II-II of fig.1B and in plan (1B) along line II of fig. 1A.
  • Figure 2 shows in section the detail of the junction of a tapping on the main tube using a shaped and glued flange (fig.2A to 2D) at different stages of shaping.
  • Figure 3 shows the detail of the junction of a nozzle on the main tube by press fitting, Figure 3A being an elevation view of a nozzle, fig.3B an end view and fig.3C, a axial section of the force fitting obtained.
  • the nozzles are provided with a collar 7, shaped and glued to the main tube 1 using a cyanoacrylic adhesive 10 (Black Max from the company "LOCTITE").
  • the main tube 1 has an end bend 8 placed in the part 9 of the mold 3, with a clearance 12 of between 1 and 2 mm, which makes it possible to precisely position the tube (1) provided with its tappings in the mold 3
  • the other flattened end 13 of the tube 1, 50 cm long, is straight and can slide in the part 10 of the mold 3 (free thermal expansion towards the outside of the mold).
  • the flanges are obtained by axial crushing of the tube 2 constituting the nozzles (fig.2A, B and C) and after shaping, these are glued to the tube 1 (fig.2D).
  • the penetration of the nozzle into the tube takes place over a length 1 of the order of mm.
  • an AS5U3G alloy is poured into the cavity 11 at a temperature of 730 ° C. and at a speed of 120 l / minute.
  • the part with its integrated channel system is removed from the mold, which is then rid of unnecessary excess lengths, 8 and 13, for example.
  • the tube is then chamfered over a length b of the order of mm, then force-fitted into the opening 23 of the tube 1 until the beads 22 serving as a stop provide the desired depth of penetration 1.
  • the method according to the invention makes it possible to obtain parts having a system of internal channels which can have a complex design, without resorting to precise and long machining on specialized machines, and without having to plug the outputs of the machined channels which are unnecessary in service and simply required by the drilling steps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Continuous Casting (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Golf Clubs (AREA)
  • Powder Metallurgy (AREA)
  • Automatic Assembly (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Valve Housings (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Body Structure For Vehicles (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Claims (16)

  1. Verfahren zur Herstellung eines Gußstücks aus Al oder seinen Legierungen, das integrierte Kanäle enthält, bei dem:
    - ein Rohr (1) (oder System von Rohren) aus Aluminium oder einer seiner Legierungen einer Dicke über oder gleich 1 mm, das vorab geformt wurde, in einer Form (3) in einer vorbestimmten Lage angeordnet wird, wobei die Enden des Rohres (oder des Systems von Rohren) außerhalb der Form oder der hier eingefügten Kerne sind,
    - man die Legierung des Stücks in den Hohlraum der Form gießt und
    - man nach dem Entformen die vorragenden Teile des Rohres (oder des Systems von Rohren) entfernt,
    dadurch gekennzeichnet,
    daß das Rohr (oder das System von Rohren) (1) vor dem Gießen in der Form (3) in vollkommen zentrierter Weise mit der Möglichkeit einer Axialausdehnung der Rohre und einer Blockierung gegen Rotation derselben positioniert wird.
  2. Gießverfahren nach dem Anspruch 1,
    dadurch gekennzeichnet,
    daß das Gußstück aus Aluminium oder seinen Legierungen ein Zylinderkopf ist.
  3. Verfahren nach irgendeinem der Ansprüche 1 oder 2,
    dadurch gekennzeichnet,
    daß das System von Rohren aus einem Rohr (1) gebildet wird, das mit einer oder mehreren Abzweigungen (2) versehen sein kann.
  4. Verfahren nach dem Anspruch 3,
    dadurch gekennzeichnet,
    daß die Abzweigungen (2) am Rohr (1) durch angepaßte (7) und geklebte (10) Kragen befestigt werden.
  5. Verfahren nach dem Anspruch 3,
    dadurch gekennzeichnet,
    daß die Abzweigungen (2) am Rohr (1) durch Einpressen befestigt werden.
  6. Verfahren nach dem Anspruch 5,
    dadurch gekennzeichnet,
    daß das Ende der Abzweigung (2) mit durch Prägen vor dem Einpressen erhaltenen Längsnuten (20) versehen wird.
  7. Verfahren nach einem der Ansprüche 5 oder 6,
    dadurch gekennzeichnet,
    daß das Drücken für den Durchmesser positiv ist, wobei es bis zu 5/10 mm gehen kann.
  8. Verfahren nach einem der Ansprüche 4 bis 7,
    dadurch gekennzeichnet,
    daß die Abzweigung(en) (2) in das Rohr (1) eindringt(en).
  9. Verfahren nach dem Anspruch 8,
    dadurch gekennzeichnet,
    daß das Eindringen 1 in der Größenordnung des mm ist.
  10. Verfahren nach den Ansprüchen 1 bis 9,
    dadurch gekennzeichnet,
    daß die Positionierung des Rohres (oder Systems von Rohren) durch einen in einen Kern (9) außerhalb der Form mit einem Spiel (12) eingefügten 90°-Krümmer (8) außerhalb des brauchbaren Teils des Gußstücks (1) und durch das abgeflachte Ende (13) des Rohres bewirkt wird.
  11. Verfahren nach einem der Ansprüche 1 bis 10,
    dadurch gekennzeichnet,
    daß man während des Gießens des Stücks ein Kühlfluid im Rohr (oder Rohrsystem) (1) zirkulieren läßt.
  12. Verfahren nach einem der Ansprüche 1 bis 11,
    dadurch gekennzeichnet,
    daß die Schmelztemperatur des Rohres (oder Systems von Rohren) über oder gleich der der das Gußstück bildenden gegossenen Legierung ist.
  13. Verfahren nach einem der Ansprüche 1 bis 12,
    dadurch gekennzeichnet,
    daß die das Rohr (oder System von Rohren) bildende Legierung handelsüblich reines Aluminium (Typ A5) ist.
  14. Verfahren nach einem der Ansprüche 1 bis 13,
    dadurch gekennzeichnet,
    daß die Gießtemperatur unter 760 °C ist.
  15. Verfahren nach dem Anspruch 14,
    dadurch gekennzeichnet,
    daß die Gießtemperatur im Bereich von 720 °C bis 740 °C ist.
  16. Verfahren nach einem der Ansprüche 14 oder 15,
    dadurch gekennzeichnet,
    daß die Kontaktzeit zwischen dem Rohr (oder System von Rohren) und dem geschmolzenen Metall unter 10 Sekunden und vorzugsweise 5 Sekunden ist.
EP91420284A 1990-08-02 1991-07-31 Verfahren zur Gestaltung eines Gusstückes aus Aluminium oder seinen Legierungen mit eingegliederten Giessläufen Expired - Lifetime EP0470021B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9010487A FR2665384B1 (fr) 1990-08-02 1990-08-02 Procede de realisation d'une piece moulee en al ou ses alliages munie de canaux integres.
FR9010487 1990-08-02

Publications (2)

Publication Number Publication Date
EP0470021A1 EP0470021A1 (de) 1992-02-05
EP0470021B1 true EP0470021B1 (de) 1995-06-28

Family

ID=9399743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91420284A Expired - Lifetime EP0470021B1 (de) 1990-08-02 1991-07-31 Verfahren zur Gestaltung eines Gusstückes aus Aluminium oder seinen Legierungen mit eingegliederten Giessläufen

Country Status (16)

Country Link
US (1) US5305818A (de)
EP (1) EP0470021B1 (de)
JP (1) JP2986585B2 (de)
KR (1) KR100210171B1 (de)
AT (1) ATE124306T1 (de)
BR (1) BR9105018A (de)
CA (1) CA2048187C (de)
DE (1) DE69110786T2 (de)
ES (1) ES2074246T3 (de)
FI (1) FI96285C (de)
FR (1) FR2665384B1 (de)
IE (1) IE76321B1 (de)
IS (1) IS1675B (de)
MX (1) MX9100475A (de)
NO (1) NO178918C (de)
PT (1) PT98547B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1647417A1 (de) 2004-10-12 2006-04-19 Montupet S.A. Rad und Giessverfahren für dieses Rad mit versetztem und maskiertem Ventil

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274858B (en) * 1993-02-05 1996-04-24 Clifford Youngs Metal gates and fencing and methods of making the same
NL9401061A (nl) * 1994-06-27 1996-02-01 Intergas B V Werkwijze voor het vervaardigen van een warmtewisselaar en een warmtewisselaar.
JPH1076357A (ja) * 1996-09-04 1998-03-24 Toyota Motor Corp 筒体の鋳包み方法及びその装置
DE19647069A1 (de) * 1996-11-14 1998-05-20 Heidelberger Druckmasch Ag Gußkörper
DE10036481A1 (de) * 2000-07-20 2002-02-07 Metallwerke Harzgerode Gmbh Verfahren zur Herstellung von Aluminiumkolben
US20050133187A1 (en) * 2003-12-17 2005-06-23 Sean Seaver Die casting method system and die cast product
US20050133102A1 (en) * 2003-12-22 2005-06-23 Blackman Donald E. Hydraulic end head with internally cast hydraulic circuits
DE102007023192A1 (de) * 2006-09-08 2008-03-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Luftkompressor mit Kurbelgehäuse aus Aluminiumguss
DE102007030342B4 (de) * 2007-06-29 2010-10-07 Trimet Aluminium Ag Verfahren und Vorrichtung zum Druckgießen von gegliederten Metallgussstücken
DE102008005438A1 (de) * 2008-01-22 2009-07-23 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Kompressorzylinderkopf und Verfahren zur Herstellung eines Kompressorzylinderkopfs
FR2943264B1 (fr) 2009-03-17 2012-11-16 Hispano Suiza Sa Carter moule avec tuyauteries rapportees
US8863381B2 (en) * 2010-12-22 2014-10-21 GM Global Technology Operations LLC Method of making a piston oil gallery using a hollow metallic core
KR101692932B1 (ko) * 2014-06-17 2017-01-04 육송(주) 소방호스 릴 장치용 엘보우 성형체의 절삭가공용 지그
US20160256922A1 (en) * 2015-03-03 2016-09-08 Asia Vital Components (China) Co., Ltd. Manufacturing method of cole plate structure
CN105750505A (zh) * 2016-04-13 2016-07-13 浙江锠泰机械工业有限公司 一种压缩机内孔的铸造方法
CN109648063B (zh) * 2017-10-12 2021-04-06 烟台吉森新材料科技有限公司 一种埋管铸造中水冷管的固定结构及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848666A (en) * 1970-11-19 1974-11-19 Ethyl Corp Foamed metal bodies
FR2379340A1 (fr) * 1977-02-08 1978-09-01 Roche Maurice Procede de fabrication par coulee d'une piece metallique massive prevue avec evidement interne de profil quelconque pouvant comporter des parties de faible section
JPS5597861A (en) * 1978-11-25 1980-07-25 Keiichiro Miyazaki Insert casting method of metal tubular body of pressure- resistant cylinder casting
JPS5573455A (en) * 1978-11-28 1980-06-03 Keiichiro Miyazaki Pipe body insert casting method weld-combining straight pipe and bend
DE3013745C2 (de) * 1980-04-10 1982-03-25 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Gußteil mit Kanälen, sowie Verfahren und Gießform für die Herstellung dieses Gußteils
JPS5934472A (ja) * 1982-08-20 1984-02-24 Toyota Motor Corp 吸気通路壁加熱と車室内暖房の関連制御装置
FR2585598B1 (fr) * 1985-07-31 1987-11-20 Isere Ets Roche Fonderies Affi Procede de fabrication par coulee d'une piece metallique munie interieurement d'une partie evidee entouree par un tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1647417A1 (de) 2004-10-12 2006-04-19 Montupet S.A. Rad und Giessverfahren für dieses Rad mit versetztem und maskiertem Ventil

Also Published As

Publication number Publication date
FI96285C (fi) 1996-06-10
FI96285B (fi) 1996-02-29
FI913671A (fi) 1992-02-03
ES2074246T3 (es) 1995-09-01
IE912728A1 (en) 1992-02-12
EP0470021A1 (de) 1992-02-05
DE69110786D1 (de) 1995-08-03
NO178918C (no) 1996-07-03
MX9100475A (es) 1992-04-01
KR100210171B1 (ko) 1999-07-15
FR2665384B1 (fr) 1992-10-16
BR9105018A (pt) 1993-05-25
PT98547A (pt) 1993-09-30
CA2048187C (fr) 1999-04-27
JPH04251656A (ja) 1992-09-08
US5305818A (en) 1994-04-26
IS1675B (is) 1997-12-31
NO178918B (no) 1996-03-25
DE69110786T2 (de) 1995-11-23
FR2665384A1 (fr) 1992-02-07
JP2986585B2 (ja) 1999-12-06
IS3738A7 (is) 1992-02-03
FI913671A0 (fi) 1991-08-01
ATE124306T1 (de) 1995-07-15
PT98547B (pt) 1999-01-29
NO913006D0 (no) 1991-08-01
CA2048187A1 (fr) 1992-02-03
NO913006L (no) 1992-02-03
IE76321B1 (en) 1997-10-22

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