EP2636467A2 - Dispositif de fabrication d'un bloc moteur agencé en V - Google Patents

Dispositif de fabrication d'un bloc moteur agencé en V Download PDF

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Publication number
EP2636467A2
EP2636467A2 EP13152688.1A EP13152688A EP2636467A2 EP 2636467 A2 EP2636467 A2 EP 2636467A2 EP 13152688 A EP13152688 A EP 13152688A EP 2636467 A2 EP2636467 A2 EP 2636467A2
Authority
EP
European Patent Office
Prior art keywords
mold
cylinder crankcase
core
feeder
producing
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
Application number
EP13152688.1A
Other languages
German (de)
English (en)
Other versions
EP2636467A3 (fr
EP2636467B1 (fr
Inventor
Stephan Dr. Beer
Steffen Ziegler
Christian Dr. Klimesch
Ludger Urhahn
Reiner Deuser
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.)
KS Huayu Alutech GmbH
Original Assignee
KS Aluminium Technologie GmbH
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 KS Aluminium Technologie GmbH filed Critical KS Aluminium Technologie GmbH
Priority to PL13152688T priority Critical patent/PL2636467T3/pl
Publication of EP2636467A2 publication Critical patent/EP2636467A2/fr
Publication of EP2636467A3 publication Critical patent/EP2636467A3/fr
Application granted granted Critical
Publication of EP2636467B1 publication Critical patent/EP2636467B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24—Accessories for locating and holding cores or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/088—Feeder heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/108—Installation of cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/02—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects

Definitions

  • the invention relates to an apparatus for producing a cylinder crankcase in V-shape with an outer mold with moldings for forming the Zylinderkurbeigephases, sleeves, which are retractable to form cylinders in the mold, at least one core which is used to form a part of a crank chamber in the Mold is arranged, and which is removable after casting and at least one feeder core, which is arranged in the interior of the mold.
  • the DE 10 2009 058 730 A1 discloses a method of casting an engine block in which a feeder core is placed inside the mold.
  • the feeder core is arranged in the interior of the cylinder and has a connection to the inner wall of the cylinder.
  • the at least one feeder core is arranged between the sleeves on the side facing the sleeves, a maximum of one feeder core is required per cylinder pair, which can additionally be placed in a fixed position in the casting mold and held by a molded part of the casting mold can.
  • a plurality of feeder cores are arranged in the casting mold, so that over the entire length of the cylinder crankcase a make-up to prevent blowholes is made possible.
  • the feeder cores are arranged in the longitudinal direction between the cavities of the mold, which form the walls in which the main bearing points of the cylinder crankcase are formed.
  • refilling can take place centrally in the cylinder crankcase in a region in which no special demands are placed on the strength and the microstructure. Cylinder head webs and Hauptiagerstellen the main bearings can be cooled accordingly fast, so that high strengths are achieved in these areas.
  • each feed core has at least two inlet openings, which open on both sides of the feed core into the cavity of the casting mold, which forms the walls in which the main bearing points of the cylinder crankcase are formed.
  • inlet openings which open on both sides of the feed core into the cavity of the casting mold, which forms the walls in which the main bearing points of the cylinder crankcase are formed.
  • the feeder cores viewed in the transverse direction are to be arranged on an axis of symmetry between the sleeves. This symmetry ensures uniform solidification with symmetrical solidification isotherms. Overall, reduced by the reduced solidification time, the cycle times in the production.
  • a cavity for generating a Kurbeiraum the occlusive wall is formed in the mold, so that the feeder core bounds this wall.
  • the upper surface of the feeder core thus serves simultaneously as a molded part of the cylinder crankcase.
  • the feeder core is a sand core, so that subsequent removal of the core can be easily performed.
  • the device shown has an outer mold 10, which consists of a lower part 12, two displaceable side parts 14, 16 and a lowerable upper part 18 are mounted in the sleeves 20, which after the attachment of the upper part 18 to form cylinders 22 in the mold 10 retracted.
  • the resulting casting is formed in a cavity 23 of the mold 10 and is a cylinder crankcase 24 with V-shaped cylinder banks 26 which are arranged in the embodiment of each three longitudinally arranged cylinders 22.
  • the supply of the casting mold with the light metal melt takes place via gates 28, which are formed at the base of the casting mold 10.
  • a crank chamber 30 is partially formed by the base 12 of the mold 10 and partially by internal cores 32, which are mostly made of sand. These are particularly required in order to be able to form corresponding cavities of the crank chamber 30 on the side facing the upper part 18 of walls 34 in which main bearing points 36 are formed for a crankshaft, not shown.
  • the walls 34 in which the main bearings 36 are formed are also formed by the filling of cavities 42 defined by the base 18 and the cores 32.
  • a cavity 38 is formed in the mold to form a wall 40, via which the crank chamber 30 of the cylinder crankcase 24 between the cylinder banks 26 is closed.
  • the filling over the gates 28 has the disadvantage that the solidification of the melt extends from the cylinder head side to the crank chamber 30. Normally, sufficient strength does not arise in the area of the main bearing points 36.
  • a feeder core 44 which is made of sand.
  • this feeder core 44 is between the wall 40 and the Hauptiagerstellen 36 viewed longitudinally between the cavities 42 to form the walls 34.
  • the feeder core 44 has two inlet openings 46 and an inner feed space 48.
  • the inlet openings 46 open into a region 50 of the walls 34, which extends from the main bearing points 36 in the direction of the cylinder 22 and in the direction of the wall 40.
  • a foot region of the feed core 44 lies on the lower part 12 of the casting mold 10, while a head portion defines the cavity 38 to form part of the wall 40.
  • the feeder core 44 of the present embodiment extends between the two internal walls 34 so that it can melt both internal walls 34. Accordingly, for example, for 8-cylinder cylinder crankcase two successive feed cores 44 should be used to provide all the internal walls 34 in the casting process with melt can.
  • feed cores 44 can be used to supply the outer walls in the area of the main bearing points 36.
  • the melt in the remaining cavities 23, 38, 42 begins to solidify from outside to inside.
  • solidification times are desired, especially in the highly loaded areas of the main bearings 36 and the cylinder lands between the cylinders 22, which are still shortened by 12 cooling water channels 54 are formed in both the sleeves 20 and in the lower mold part, so that heat from the Melt can be dissipated via the cooling water.
  • melt can be filled from the volume of the product Feed space 48 flow back through the inlet openings 46 in the casting. Accordingly, a Lunker Guess is reliably avoided. Solidification isotherms form, on the one hand, starting from the rapidly freezing, ie cooled, regions and to the feed core 44. Overall, this results in a faster cooling than in the known processes, so that the cycle times can be reduced. The feed path is not cut off accordingly.
  • the cylinder crankcase 24 is removed from the mold 10 and the cores 32, 44 removed from the cylinder crankcase 24 in a known manner.
  • the scope of protection is not limited to the embodiment described.
  • the number of feeder cores used depends on the number of cylinders of the crankcase produced.
  • the feeder cores are suitable for various casting methods and casting molds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP13152688.1A 2012-03-06 2013-01-25 Dispositif de fabrication d'un bloc moteur agencé en V Active EP2636467B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13152688T PL2636467T3 (pl) 2012-03-06 2013-01-25 Urządzenie do wytwarzania bloków silnika w układzie V

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012101887.1A DE102012101887B4 (de) 2012-03-06 2012-03-06 Vorrichtung zur Herstellung eines Zylinderkurbelgehäuses in V-Bauform

Publications (3)

Publication Number Publication Date
EP2636467A2 true EP2636467A2 (fr) 2013-09-11
EP2636467A3 EP2636467A3 (fr) 2017-12-20
EP2636467B1 EP2636467B1 (fr) 2019-10-02

Family

ID=47681697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13152688.1A Active EP2636467B1 (fr) 2012-03-06 2013-01-25 Dispositif de fabrication d'un bloc moteur agencé en V

Country Status (4)

Country Link
EP (1) EP2636467B1 (fr)
DE (1) DE102012101887B4 (fr)
ES (1) ES2762161T3 (fr)
PL (1) PL2636467T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106270400A (zh) * 2016-11-07 2017-01-04 江铃汽车股份有限公司 一种卧浇工艺缸体的细长油道砂芯结构
CN114147182A (zh) * 2021-12-07 2022-03-08 勤威(天津)工业有限公司 一种砂芯成型高品质高步留支架的铸造模型结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO2756167T3 (fr) 2014-01-29 2018-06-16

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4213165A1 (de) 1992-04-22 1993-10-28 Ks Aluminium Technologie Ag Niederdruck-Gießverfahren zur Herstellung von Formgußstücken
EP1498197A1 (fr) 2003-07-18 2005-01-19 Man Nutzfahrzeuge Ag Procédé de coulée de bloc moteur à combustion à pistons alternatifs
DE102009058730A1 (de) 2009-12-17 2011-06-22 Bayerische Motoren Werke Aktiengesellschaft, 80809 Verfahren zur Herstellung eines Gussteils

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008048761B4 (de) 2008-09-24 2019-03-28 Volkswagen Ag Verfahren zum Gießen eines Gusskörpers, insbesondere Zylinderkurbelgehäuses und Gießvorrichtung zur Durchführung des Verfahrens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4213165A1 (de) 1992-04-22 1993-10-28 Ks Aluminium Technologie Ag Niederdruck-Gießverfahren zur Herstellung von Formgußstücken
EP1498197A1 (fr) 2003-07-18 2005-01-19 Man Nutzfahrzeuge Ag Procédé de coulée de bloc moteur à combustion à pistons alternatifs
DE102009058730A1 (de) 2009-12-17 2011-06-22 Bayerische Motoren Werke Aktiengesellschaft, 80809 Verfahren zur Herstellung eines Gussteils

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106270400A (zh) * 2016-11-07 2017-01-04 江铃汽车股份有限公司 一种卧浇工艺缸体的细长油道砂芯结构
CN114147182A (zh) * 2021-12-07 2022-03-08 勤威(天津)工业有限公司 一种砂芯成型高品质高步留支架的铸造模型结构
CN114147182B (zh) * 2021-12-07 2024-01-23 勤威(天津)工业有限公司 一种砂芯成型高品质高步留支架的铸造模型结构

Also Published As

Publication number Publication date
EP2636467A3 (fr) 2017-12-20
ES2762161T8 (es) 2020-08-05
DE102012101887A1 (de) 2013-09-12
EP2636467B1 (fr) 2019-10-02
PL2636467T3 (pl) 2020-04-30
DE102012101887B4 (de) 2018-04-19
ES2762161T3 (es) 2020-05-22

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