EP2399692A1 - Moule continu pour la coulée d'éléments en coulée à partir d'un métal en fusion - Google Patents

Moule continu pour la coulée d'éléments en coulée à partir d'un métal en fusion Download PDF

Info

Publication number: EP2399692A1
Authority: EP; European Patent Office
Prior art keywords: mold; permanent; casting; package; continuous casting
Prior art date: 2010-06-28
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

EP11171279A

Other languages

German (de)

English (en)

Other versions

EP2399692B1 (fr

Inventor

Rolf Dr. Gosch

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.)

Nemak Linz GmbH

Original Assignee

Nemak Linz 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.)

2010-06-28

Filing date

2011-06-24

Publication date

2011-12-28

2011-06-24 Application filed by Nemak Linz GmbH filed Critical Nemak Linz GmbH

2011-12-28 Publication of EP2399692A1 publication Critical patent/EP2399692A1/fr

2015-02-18 Application granted granted Critical

2015-02-18 Publication of EP2399692B1 publication Critical patent/EP2399692B1/fr

Status Active legal-status Critical Current

2031-06-24 Anticipated expiration legal-status Critical

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Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- 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
- B22C9/103—Multipart cores

Definitions

the invention relates to a permanent casting mold for casting a casting from a molten metal, which is composed of at least two permanent mold parts delimiting the mold cavity of the permanent casting mold from the environment, which remain intact when the casting is removed from the mold.
Continuous casting molds of this type also known as "casting molds" in technical terminology, are used, for example, in mass production to cast cylinder heads for internal combustion engines from an aluminum melt.
the object of the invention was to provide a way, a complex shaped component, as it represents a cylinder head with a molded on the type of the above cylinder head design turbocharger housing, reliable in high volumes and cost casting technology to finished.
a permanent casting mold according to the invention for casting a casting from a molten metal is composed of at least two permanent mold parts which delimit the cavity of the permanent casting mold from the environment.
the permanent moldings are characterized by the fact that they are not destroyed during removal of the casting, but preserved and can be reused accordingly for many casting runs.
casting cores or molded parts can also be positioned as usual in a permanent casting mold according to the invention within the mold cavity, which decay into many free-flowing individual parts as a result of targeted mechanical force or the thermal stresses occurring during the casting. Casting cores of this type are required, for example, in permanent casting molds if channels, cavities, etc. are to be formed within the respective casting.
this mold package consists of a material which breaks when the cast part is completely removed from the mold and surrounds a mold cavity section.
the mold cavity section surrounded by the mold package is in communication with the mold cavity of the permanent mold, so that melt filled into the mold cavity of the permanent mold passes into the mold cavity section of the mold package and vice versa.
the permanent casting mold is supplemented by a mold package which, viewed individually, is designed in the manner of a lost casting mold and is newly created for each casting process.
a mold package which, viewed individually, is designed in the manner of a lost casting mold and is newly created for each casting process.
the invention combines the advantages of a permanent mold with the advantages of a mold package designed as a lost mold. Since the volume of the functional part respectively imaged by the mold package is small compared to the volume that is imaged in the mold cavity surrounded by the permanent mold parts, the expense to be taken into account for the production of the mold package is also in relation to the advantages resulting from the design according to the invention a mold can be achieved, low.
the mold package associated parts of the permanent mold and the mold package can be designed so that in the finished composite permanent mold the mold package is applied to an outer surface of the permanent mold.
a separate seal may be provided for sealing the existing between the permanent mold and the mold package joining gap. This can for example also be arranged so that it acts between the peripheral wall of the opening, which is associated with the mold package, and a corresponding surface of the mold package.
At least one first mold element and formed on at least one of the Treasureg cashformmaschine a corresponding to the first mold element shaped second mold element may be formed on the mold package, the form-fitting with the mold element of the mold package cooperates.
the respective shaping elements acting in the manner of core marks can be designed such that they not only define the position of the mold package in relation to the permanent moldings, but also ensure a captive hold of the mold package on the associated permanent moldings.
the opening of the permanent mold associated with the mold package may contribute to the proper alignment of the mold package when the opening of the permanent mold associated with the mold package widens, at least in sections, starting from the mold cavity of the permanent mold in the direction of the outer surface of the permanent mold.
the opening is then designed in the manner of a funnel in such a way that the mold package inserted into the opening is automatically aligned during its mounting on the surfaces of the widening sections lying against it.
the edge region, which surrounds the opening associated with the mold package may be designed tapering at least in sections in the direction of the mold cavity of the permanent mold or in the manner of a throat.
the mold package forming the functional element to be molded will typically be composed of two or more moldings or mold cores.
the mold package can map a functional part, which is integrally connected to the cylinder head with finished cast cylinder head and has at least one channel which is connected without interruption with a channel of the cylinder head.
a functional part may be, for example, the housing or a housing part of a turbocharger.
the mold package may, for example, moldings, through which the outer shape of the housing or housing part is determined, and mold cores, which image the exhaust passage and an optionally additionally provided cooling fluid channel in the housing.
the mold package then comprises a first mold core which images a water channel of the functional part connected to the water jacket of the cylinder head to be cast, and a second mold core which images an exhaust gas duct connected to an exhaust pipe of the cylinder head.
a continuous casting mold which is supplemented according to the invention by a mold package which is made from a mold material which breaks down into many individual parts during removal from the mold, is suitable in particular for producing cast parts from a light metal melt, in particular an aluminum melt, since the use of such light metal melts is particularly advantageous
Benefit from the chill casting in combination with the benefits of Formvolsses can be used to produce, for example, complex cylinder head designs for internal combustion engines, which on the one hand optimal Function integration and on the other hand, a minimization of production costs.
At least one molding element may be provided on the casting mold for imaging a first receiving point on the casting.
a first reception point or several such initial reception points are used in particular in automated machining as a starting point for the measurement of the geometry of the respective casting.
the Clearage determine the "zero points" for the alignment of the machining tool or the respective workpiece to be machined in the x-, y- and z-direction.
the portion of the casting shown in the destructible mold package is a special one Machining must be subjected to the particular requirements, for example, in terms of geometry, in particular the correct position positioning of the respective processing sections, provided, it may be useful if an additional mold element is provided on the mold, which at the imaged in the mold package section of Cast part forms an additional Clearageyak.
This additional initial reception point can form the basis for an additional reference system which is independent of the reference system, which is based on the initial reception generally provided on the casting.
This possibility proves to be particularly advantageous if an exhaust-gas turbocharger housing is depicted in the mold package, the mounting surface of which and the machined functional geometries for the turbocharger to be assembled require machining performed with extreme precision.
the permanent mold 1 is mounted on a support plate 2.
the carrier plate 2 is arranged for example on a transport system, not shown, which transports the permanent mold 1 to a casting station, also not shown here.
the permanent casting mold 1 is composed of a molded part 3, which is usually made of molding sand, and of several permanent casting moldings, of which the permanent mold parts 4, 5, 6 are visible here.
the molded part 3 forms the cover, the permanent mold part 4 a first side wall, the permanent mold part 6 a second side wall and the permanent mold part 5 a bottom of the permanent mold 1.
the permanent mold parts of the permanent mold 1 can be made in a known manner from a suitable steel, the so high temperature and wear resistant is that the permanent moldings can be reused for a large number of casting operations.
the permanent mold parts of the permanent mold 1 define a mold cavity 7 of the permanent mold 1 with respect to the environment U and have on their the mold cavity 7 associated side mold elements 8.9, through which the outer shape of the cylinder head to be cast is displayed.
the mold core 12 which is arranged at a distance between the mold cores 10, 11, forms an exhaust gas duct integrated into the cylinder head to be cast, by means of which, in accordance with FIG EP 2 143 926 A1 described development, the exhaust gas outlets of the cylinder head to be cast are performed together to an outlet opening.
the one side wall of the permanent mold 1 forming permanent mold part 5 is formed starting from the edge, which is assigned to the lid of the permanent mold 1 forming mold part 3, an opening 13 which extends in the direction of the opposite edge.
the mandrels 10,11,12 are each designed so that they end at the opening 13 and project into the opening 13 of the permanent mold 1.
the width of the opening 13 is at the same time dimensioned so that it receives a projection 20 of a mold package 21, which is arranged on the outside of the permanent mold part 6.
This projection 20 of the mold package 21 fills the opening 13 of the permanent mold 1 completely and lies with its laterally beyond the projection 20, the permanent mold part 6 associated wall surfaces close to the outer surface of the permanent mold part 6.
the split in the vertical direction in the present embodiment mold package 21 is made of several moldings 22,23 and mold cores 24,25 composed, which are each prepared in a conventional manner from a per se known, mixed with a suitable binder molding sand.
the mold part 22 forms one half of the block-shaped mold package 21 in the assembled state, while the other half of the mold package 21 is formed by the mold part 23.
the mold parts 22, 23 enclose a mold cavity section 26 in which the mold cores 24, 25 are arranged and which is open in the area of the end face of the projection 20 seated in the opening 13 of the permanent mold 1 for the mold cavity 7 delimited by the permanent mold parts 4-6.
the mold package 21 is used for the simultaneous integral casting of a housing for an exhaust gas-driven, provided with a water-cooled turbocharger to be poured in the permanent mold 1 cylinder head.
the one mold core 24 of the mold package 21 forms a water jacket channel of the housing to be cast.
the mandrel 24 has a curved shape in the manner of a spiral or a screw. That in the representation in Fig. 2 lower end 27 of the mandrel 24 is to be positioned and shaped so that this end flush with its face fully flushed and accurately positioned at its associated end face of the mandrel 11 in sitting at the permanent mold part 6 mold package 21, the lower part of the water jacket to be cast Cylinder head maps.
the second mold core 25 of the mold package 21 forms a waste gas channel which is hot in practical use and is seated in the space delimited by the mold core 24 and likewise has a helical shape.
lower end portion 30 is positioned and shaped so that its face flush over the entire surface of its associated end face of the mold core 12, which images the integrated exhaust duct of the cylinder head to be cast.
peg-shaped projection 31 Starting from the lower end portion 30 of the mandrel 25 follows the contour of the mandrel 24 in a formed at its other end, peg-shaped projection 31 whose longitudinal axis L is usually parallel to the flat outer surface of the permanent mold part 6 extends.
the projection 31 is seated with its free end positively in a correspondingly shaped, not visible here recess of the molding 22 and forms at the housing to be cast from an outlet from which can later accommodate the impeller of the turbocharger.
Both between the mold cavity portion 26 delimiting inner surfaces 32 of the mold parts 22,23 and the outer surface 34 facing them of the mold core 24 and between the inner, the mold core 25 facing surface 35 of the mold core 24 and the mold core 24 facing peripheral surface 36 is continuous a substantially constant distance. Accordingly, in the mold cavity portion 26 of the mold package 21, a first spiral outer channel 37 and, separated therefrom, a second, likewise spiral, inner channel 38 are formed. Both channels 37, 38 are connected to the permanent mold part 6 mounted mold package 21 with their one as with their other end each uninterruptible with a free, not occupied by mandrels area of the mold cavity 7 of the permanent mold 1.
the melt flows into the channels 37, 38 of the mold package 21 without interruption when a certain fill level is reached, until these are likewise completely filled.
cylinder head formed in the outer channel 38 light metal correspondingly forms the outer wall of the integrally cast on the cylinder head housing for the turbocharger, while the material solidified in the channel 37 by the Mold core 24 demarcated water jacket of the turbocharger housing relative to the illustrated by the mold core 25 exhaust passage of the turbocharger.
the demolding of the cast on the cylinder head turbocharger housing is done in a conventional manner in that the mold parts 22,23 and the mandrels 24,25 are destroyed by the action of external forces. This can be done for example by shaking the cylinder head, as is usually carried out to destroy the sitting in the mold cavity 7 mandrels 10 - 12 and trickle out of the finished cylinder head.
the positionally correct orientation of the mold package 21 on the permanent mold part 6 or in the opening 13 can also be supported by the fact that the edge surface portions surrounding the opening 13 at least in the region of Fig. 2 Lower edge portion 14 is tapered starting from its the mold cavity 7 associated edge in the direction of the outer surface of the permanent mold part 6 so that the opening 13 extends at least in this area in the direction of the environment U in the manner of a funnel, the opening 13 in the direction of the mold cavity 7 so narrowed conically.
the surface portion of the projection 20 of the mold package 21 assigned to this bevelled portion 14 is bevelled in a corresponding manner, the mold package 21 is centered automatically in its position on the permanent mold part 6, at least in the direction of the height of the permanent mold 1.
the mold package 21 is supported by a bracket 41.
the support plate 2 may be formed in a conventional manner, a core mark on which the mold package 21 is fixed positively with respect to its position relative to the associated permanent mold part 6.

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Molds, Cores, And Manufacturing Methods Thereof (AREA)

EP20110171279 2010-06-28 2011-06-24 Moule pour la coulée d'éléments en coulée à partir d'un métal en fusion Active EP2399692B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE201010025285 DE102010025285A1 (de)	2010-06-28	2010-06-28	Dauergießform zum Gießen von Gussstücken aus einer Metallschmelze

Publications (2)

Publication Number	Publication Date
EP2399692A1 true EP2399692A1 (fr)	2011-12-28
EP2399692B1 EP2399692B1 (fr)	2015-02-18

Family

ID=44721165

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20110171279 Active EP2399692B1 (fr)	2010-06-28	2011-06-24	Moule pour la coulée d'éléments en coulée à partir d'un métal en fusion

Country Status (2)

Country	Link
EP (1)	EP2399692B1 (fr)
DE (1)	DE102010025285A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104741547A (zh) *	2015-04-01	2015-07-01	无锡蠡湖增压技术股份有限公司	一种带热碰模的压气壳用无砂芯金属模具
CN106180577A (zh) *	2016-09-28	2016-12-07	江苏华培动力科技有限公司	双涡流涡壳砂芯无缝组合工艺
CN106424582A (zh) *	2016-10-28	2017-02-22	江苏华培动力科技有限公司	涡轮增压器壳体铸造用砂芯成型工艺
CN112566739A (zh) *	2018-11-09	2021-03-26	宝马股份公司	用于制造曲轴箱的锭模和方法
CN116493545A (zh) *	2022-01-27	2023-07-28	大众汽车股份公司	用于硬模铸造的铸造模具

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102017211876B3 (de)	2017-07-12	2018-08-16	Bayerische Motoren Werke Aktiengesellschaft	Kokille sowie Verfahren zum Herstellen eines Bauteils

Citations (3)

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Publication number	Priority date	Publication date	Assignee	Title
EP0872295A1 (fr) *	1997-04-15	1998-10-21	Wärtsilä NSD Schweiz AG	Moule de coulage et procédé de fabrication de pièces coulées creuses et pièces coulées creuses
EP1536141A1 (fr) *	2003-11-28	2005-06-01	BorgWarner Inc.	Carter pour un turbocompresseur
EP2143922A1 (fr)	2008-07-11	2010-01-13	Ford Global Technologies, LLC	Culasse avec collecteur d'échappement et turbocompresseur

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DE202004020207U1 (de) *	2004-12-27	2005-04-07	Univ Magdeburg Tech	Einrichtung zum Schwerkraftgießen von Leichtmetallgussteilen im Kokillen-Gießverfahren
US7438117B2 (en) *	2006-01-19	2008-10-21	Gm Global Technology Operations, Inc.	Cylinder block casting bulkhead window formation
DE102007004050B4 (de) *	2007-01-22	2010-03-18	Ks Aluminium-Technologie Gmbh	Vorrichtung zum Herstellen eines Zylinderkurbelgehäuses
DE102007030482B4 (de) *	2007-06-30	2018-12-20	Dr. Ing. H.C. F. Porsche Aktiengesellschaft	Kühlkanäle im Zylinderkopf einer Brennkraftmaschine

2010
- 2010-06-28 DE DE201010025285 patent/DE102010025285A1/de not_active Withdrawn
2011
- 2011-06-24 EP EP20110171279 patent/EP2399692B1/fr active Active

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0872295A1 (fr) *	1997-04-15	1998-10-21	Wärtsilä NSD Schweiz AG	Moule de coulage et procédé de fabrication de pièces coulées creuses et pièces coulées creuses
EP1536141A1 (fr) *	2003-11-28	2005-06-01	BorgWarner Inc.	Carter pour un turbocompresseur
EP2143922A1 (fr)	2008-07-11	2010-01-13	Ford Global Technologies, LLC	Culasse avec collecteur d'échappement et turbocompresseur
EP2143926A1 (fr)	2008-07-11	2010-01-13	Ford Global Technologies, LLC	Combinaison d'une culasse et d'une turbine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104741547A (zh) *	2015-04-01	2015-07-01	无锡蠡湖增压技术股份有限公司	一种带热碰模的压气壳用无砂芯金属模具
CN106180577A (zh) *	2016-09-28	2016-12-07	江苏华培动力科技有限公司	双涡流涡壳砂芯无缝组合工艺
CN106180577B (zh) *	2016-09-28	2018-11-27	江苏华培动力科技有限公司	双涡流涡壳砂芯无缝组合工艺
CN106424582A (zh) *	2016-10-28	2017-02-22	江苏华培动力科技有限公司	涡轮增压器壳体铸造用砂芯成型工艺
CN112566739A (zh) *	2018-11-09	2021-03-26	宝马股份公司	用于制造曲轴箱的锭模和方法
CN116493545A (zh) *	2022-01-27	2023-07-28	大众汽车股份公司	用于硬模铸造的铸造模具

Also Published As

Publication number	Publication date
EP2399692B1 (fr)	2015-02-18
DE102010025285A1 (de)	2011-12-29

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