EP2454037B1 - Formeinlage für einen giesskern und/oder eine giessform sowie giesskern und/oder giessform mit einer formeinlage - Google Patents
Formeinlage für einen giesskern und/oder eine giessform sowie giesskern und/oder giessform mit einer formeinlage Download PDFInfo
- Publication number
- EP2454037B1 EP2454037B1 EP10742718.9A EP10742718A EP2454037B1 EP 2454037 B1 EP2454037 B1 EP 2454037B1 EP 10742718 A EP10742718 A EP 10742718A EP 2454037 B1 EP2454037 B1 EP 2454037B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- mould
- mold
- core
- base body
- 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.)
- Not-in-force
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Classifications
-
- 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 mold insert for a casting core and / or a casting mold according to the preamble of claim 1.
- the invention further relates to a casting core for the production of cast metal components with a mold insert according to claim 13 and a casting mold according to claim 18.
- lost molds For the production of components made of cast metals with internal or external contours are usually used permanent molds or lost molds, possibly with internal or external casting cores. Lost cores are made of sand in core boxes. These are provided with corresponding mold cavities, into which fill openings open, over which the sand mixed with a binder is filled.
- the curing follows. Subsequently, the core, which is now inherently dimensionally stable, is removed from the core box and - possibly together with other casting cores - positioned in a permanent mold or lost mold, which is filled in the subsequent casting process with a flowable metal, namely an iron or non-ferrous alloy.
- the component After solidification of the cast metal, the component is removed from the mold and possibly freed from the sand. Subsequent cleaning removes any mold residue.
- the finished end product now has the desired shape.
- Such a shaping can, for example, have a cavity structure.
- An example of this is the cooling water jacket of a reciprocating internal combustion engine. Its cylinder block (cylinder crankcase) has one or more cylinder bores bounded by cylinder walls. In order to achieve a compact motor design, one chooses small cylinder spacings, so that the cylinder walls of adjacent cylinders touch. However, these areas called webs are no longer traversed by coolant, which can lead to thermal problems. For this reason, cooling between the contacting cylinders is usually necessary, in particular in the upper region of the combustion chamber of the cylinders, i. at the top dead center of the piston sliding in the cylinders.
- EP-A1-0 197 365 forms the cooling water channels in the cylinder webs with separate core webs, which connect the two opposite longitudinal sides of the water jacket core in height of the cylinder combustion chamber.
- the core bars will - regardless of the sheath core - formed from high-density zircon sand to obtain the necessary strength, and then fitted in the casting core.
- the disadvantage here is that the core webs break easily in the formation of very narrow channels, which can lead to damage to the casting.
- the use of zircon sand entails high costs, because the material is relatively expensive and a separate tool is necessary for the production of the core webs.
- DE-A1-198 32 718 envisages the use of separate core carbon parts for the formation of smaller voids in castings, which are burned out after the casting process with the introduction of oxygen.
- the core parts are designed as graphite plates. They are arranged as bridges in the mold cavity of the cylinder bore intermediate wall and formed with their thickened ends when shooting the sand mixture into the casting core.
- the disadvantage here is that the production of graphite plates is complicated and expensive.
- the graphite plates must be burned out by an additional step. This requires additional equipment, which has an unfavorable effect on the production costs. Regardless of all, graphite plates are very problematic to handle because they can easily break, especially when the thickness of the plate is 0.5 to 2 mm.
- DE 10 334 855 B3 discloses a method for positioning metallic parts in or on substantially sand-cast foundry cores or core packages in a casting mold, wherein the metallic part is placed around the core or around a portion of the core with at least slight play, and centered and fixed by force-locking a clamping body between the core and the metallic part takes place.
- the clamping body may comprise a metallic material or a fibrous material.
- the aim of the invention is to avoid these and other disadvantages of the prior art and to provide a mold insert for a mold and / or a casting core, which is suitable for the formation of small to very small cavities or recesses in castings.
- the mold insert should be simple and inexpensive to construct and easy to handle, in particular, the risk of breakage in thicknesses smaller than 2 mm is significantly reduced.
- the mold insert should also be removed as a lost molding quickly and easily from the finished component.
- Another important aim of the invention is to provide a casting core and / or a casting mold for the production of cast metal components which, in addition to larger cavities, is also suitable for the formation of small to very small cavities or recesses in castings.
- the casting core or the mold should be simple and inexpensive and easy to handle, as well as to be completely and easily removed after the casting process.
- the aim is also a possible free design of the components, in particular with narrow or narrow cavities, channels, recesses or contour areas.
- the invention provides that the base body is made of a fiber and / or yarn-containing material.
- fibrous and / or yarn-containing material allows the production of mold inserts, which may have almost any shape within the casting core and / or within the mold.
- product-related shapes and contours can be realized that were not possible with previously customary production methods and materials in the foundry industry.
- the mold inserts Due to the intrinsic elasticity of the fiber-containing and / or yarn-containing material, the mold inserts can be made extremely thin, so that extremely small and / or narrow cavities or voids are formed within a cavity structure, without, however, the risk that within form the form deposits cracks or breakages. Thereby can within the component to be produced no burrs or damaged areas that lead to rejects or that must be removed later in a complex treatment.
- mold inserts according to the invention can be manufactured extremely inexpensively compared to conventional ceramic supports or core parts.
- no complicated machines or apparatuses are more necessary for the production and handling of the mold inserts according to the invention.
- the material used ensures that the mold inserts can be formed with sufficient strength and in such a stable form that they are always firmly and accurately integrated into the casting core and / or into the casting mold.
- the mold inserts according to the invention can be used, for example, in the formation of a cooling water jacket in an engine block of a reciprocating internal combustion engine, wherein by means of the mold inserts in the narrow cylinder lands between the cylinder bores extremely thin channels are formed, for example, have a width of less than 1.5 mm.
- the use of the mold inserts made of fiber and / or yarn-containing material allows the engine designer to form a web cooling with optimally remaining cylinder wall.
- the water bridge can be formed without the hitherto customary draft, which further increases the clear cross-sectional area of the channel to be formed.
- the fibrous material is cardboard, paperboard, paper, nonwoven, nonwoven or felt, while the yarn containing material is a woven, knitted or knitted fabric.
- the cardboard, paperboard, paper, nonwoven, nonwoven or felt material may be mechanically, thermally or chemically consolidated prior to final shaping and / or incorporation into a foundry core and / or casting mold such that the insert has sufficient strength and intrinsic stability exhibit.
- the fiber and / or yarn-containing material may consist of ceramic, glass or carbon fibers, whereby further applications and applications are developed.
- An important embodiment of the invention provides that the fiber and / or yarn-containing material is mixed and / or impregnated with a binder.
- the mold insert can thereby be cured in a predeterminable form, optionally in one step with the curing of the casting core and / or the casting mold.
- the shaping of the mold insert can take place within the core box, within the casting mold or separately.
- the binder may be dry, moist, liquid or gaseous.
- a significant advantage of the invention is that within the component precise contours can be produced with very small dimensions that meet even strict Toleranzaobanen. At the same time the risk of breakage compared to conventional ceramic supports or core parts are significantly reduced, which has a favorable effect on the component function, the quality and efficiency of the components to be cast.
- the materials provided for the mold inserts and the sand used for the production of the casting core and / or the possibly lost casting mold have similar thermal properties, so that the casting metal is not quenched in the contact areas with the mold inserts.
- the microstructure of the cast metal thus remains unchanged homogeneous, which has a favorable effect on the quality of the components.
- Another advantage of the invention is that the mold inserts do not hinder the shrinkage of the component occurring during the solidification process. Therefore, no additional voltages can arise in the component.
- the invention further provides that the base body is coated, for example with a conventional heat-resistant or refractory material.
- the mold insert remains dimensionally stable until the surface of the cast component solidifies.
- a development of the invention provides that the contact region of the base body to the casting core and / or the casting mold is provided with at least one opening. As a result, the sand volume of the casting core or of the casting mold is connected to each other on both sides of the mold insert. The casting core and the mold insert thus form a solid bond that is not weakened locally.
- the main body of the mold insert may be formed in one or more layers according to a further aspect of the invention, wherein the individual layers or layers of a consist of uniform material or of different fiber and / or yarn-containing materials.
- the base body may have a reinforcement, which may be e.g. is arranged between the individual layers of the base body.
- a reinforcement which may be e.g. is arranged between the individual layers of the base body.
- a perforated plate or a wire mesh that is firmly integrated into the mold insert.
- the use of cardboard, cardboard or paper or other non-heat-resistant materials made of nonwoven, nonwoven or felt for the formation of the mold insert has the further advantage that these materials is largely charred after the solidification of the casting metal in the mold together with the binder and already can be quickly removed from the finished component during cleaning.
- the mold insert leaves behind a clean, burr-free opening cross section, which may be formed for example as a cooling channel in the upper cylinder region of an internal combustion engine.
- the material chars during the casting process and can be easily removed from the component.
- the mold insert which consists of heat- or fire-resistant fibers and / or yarns
- the deposit loses its stability after solidification of the casting metal, but not their cohesion.
- the mold insert can now be removed with a gripping tool from the contour region of the component.
- the body is expediently provided with a tab which is easily accessible and protrudes, for example, in the free space of the mold.
- the tab can be firmly connected to the main body of the mold insert or be integral with this.
- the main body of the mold insert is rectangular, concave or convex in cross section.
- the base body can form the base body on one or both sides in cross-section at least partially contour embossed, for example, wedge-shaped, which in a Zylinderstegkühlung in terms of flow conditions can be beneficial.
- the invention further provides for the use of the mold insert according to the invention in a casting core, in particular for the production of components made of cast metal with narrow or narrow contour regions.
- the mold insert is preferably integrated force and / or positive fit in the main body of the casting core, wherein the base body of the mold insert is injected, for example, in the casting core.
- the freestanding contact areas of the mold insert to the casting core during filling of the core box are completely surrounded with core sand and enclosed by this, the binder of the sand ensures a firm bond between the mold insert and the casting core.
- the mold insert can be used after the core shooting in the casting core and secured mechanically, by means of an adhesive or by means of an additional potting compound.
- a casting core produced in this way can form the entire contour region for the water cooling of the cylinder tubes of an internal combustion engine as a water jacket core.
- the mold inserts can form part of a completely assembled core unit. The latter can form the entire inner, and possibly outer contour of a cylinder crankcase.
- Another aspect of the invention provides that the main body of the casting core and the mold inserts integrated in the casting core are coated, for example with a conventional heat-resistant or refractory material.
- the casting core and the mold insert remain dimensionally stable until the surface of the cast component solidifies.
- Through a common coating of casting core and mold insert creates a uniform self-contained surface.
- the invention further provides a mold for the production of components made of cast metal, which - in the case of a lost form - a base made of sand or - in the case of a permanent mold - has a base body made of metal.
- a mold insert and / or a casting core may be arranged and / or integrated in the base body.
- the invention further provides for the use of a mold insert for producing a casting core.
- the invention claims the use of a casting core and / or a casting mold with a mold insert for producing a component made of cast metal.
- the in Fig. 1 Generally designated 1 cylinder block is provided for a (not shown) reciprocating internal combustion engine. It is a component which is cast in an iron or non-ferrous alloy casting mold (also not shown).
- the cylinder block 1 has an outer wall 2 and a plurality, for example, in series cylinder bores 3, which are bounded by cylinder walls 2 'between the outer wall 2 and the cylinder walls 2', a cavity 4 is formed, which is flowed through during operation of the engine of cooling water, which dissipates the heat generated during combustion. Further recesses 6 can connect the cavity 4, also referred to as a water jacket, with corresponding cavities in a cylinder head (not shown), which is screwed firmly to the cylinder block 1 by means of screws (not shown). To accommodate the screws 1 threaded holes 7 are formed in the cylinder block.
- the cylinder walls 2 'form - as Fig. 2 shows closer - between two cylinder bores 3 narrow webs 8, wherein the width B of the webs 8 may be relatively narrow in favor of a compact design of the engine.
- the width b of the water bridges 5 is between 0.5 mm and 3 mm. It is thus significantly smaller than the width B of the webs 8, so that the stability of the cylinder block 1 is not impaired despite the narrow webs 8 and the compact design of the engine.
- the (not shown in detail) height of the water bridges 5 is adapted to the respective component needs, so that always sufficient water can flow through it. If required, material bridges can be incorporated within the water bridges 5, which bridges have a stabilizing and / or water-directing effect.
- a casting core 100 is used (see Fig. 9 ) which is inserted into a mold (not shown).
- the casting core 100 consists of a suitable core sand, which is provided with a binder. It is produced in a manner known per se in a core box (not shown) by means of a core shooting machine (also not shown).
- mold inserts 10 are placed within the casting core, which are positioned and aligned exactly in the middle of the webs 8 and a suitable height, so that after the casting process and after removal of the casting core 100th and the mold inserts 10 within the component 1, the desired cavity structure 4, 5 is formed.
- the mold insert 10 has - like the Fig. 6 shows in more detail - a base body 20, which has approximately centrally a contact region 22 to the casting metal.
- This contact region 22 is delimited, for example, by the lines 23, 23 ', ie, between the lines 23, 23', the mold insert 10 is in contact with the casting metal after filling the mold.
- the base body 10 On both sides of the contact region 22 to the casting metal, the base body 10 in each case has a further contact region 24, with which the mold insert 10 is integrated into the casting core 100.
- This and the mold inserts 10 thus form a composite body, which can be used as a prefabricated unit in the mold.
- the composite body 100, 10 may be provided with a coating, for example a core size.
- apertures 30 are introduced in the contact regions 24 of the base body 10. These can - as in the embodiment of Fig. 6 shown - to be trained. But you can also have a different shape. It is only important that the mold inserts 10 are precisely and reliably embedded in the casting core 100.
- each main body 20 of the mold inserts 10 is made of a fibrous material, wherein preferably cardboard or cardboard is used. But you can also use a paper, a fleece, a nonwoven fabric or felt.
- the main body 20 of the mold insert 10 consists of a yarn-containing material, in particular a woven fabric, a knitted fabric or a knitted fabric, which has been made of ceramic, glass or carbon fibers.
- a further embodiment of the invention provides that the base body 20 is made of a fibrous and a yarn-containing material, wherein e.g. Cardboard can be combined with a felt or a fabric.
- the material is mechanically, thermally or chemically solidified.
- the mold insert can also be treated or coated with a heat- or refractory material.
- the main body 20 may be single-layered. But it can also consist of several layers or layers, which - depending on the application - different Have size dimensions and the mold insert 10 gives the desired properties. For example, several layers of cardboard or paper can be used, which lie congruently one above the other or are arranged in stages and thereby follow a desired component contour. Or you can combine different fiber and / or yarn-containing materials in the composite in order to optimally realize product-related properties.
- a reinforcement 40 may be formed within the mold insert 10. This is, for example, a grid of metal or a perforated plate.
- the reinforcement 40 may cover the entire base body 20 or - as in Fig. 7 However, it can also protrude beyond the outer contours of the main body 20 in order to be integrated, for example, in the casting core. As a result, the mold insert 10 is reliably positioned and fixed in the casting core. It is also conceivable that the reinforcement is applied to the outside of the mold insert 10.
- a tab 50 is formed. This protrudes after the introduction of the mold insert 10 in the casting core 100 via the surface or via a in the 4 to 6 indicated as a dotted line cylinder head contact surface 25 addition.
- a tab 50 is formed on both sides of the contact portion 22 to the casting metal depending on a tab 50.
- the main body 20 of the mold insert may be rectangular, concave or convex in cross-section.
- the in the 8 and 9 illustrated embodiment provides a cross-section, which is wedge-shaped on both sides, so that the cavity 5 in the webs 8 largely follows the contours of the cylinder bores 3, which saves material and increases the cooling effects in the cavities 5.
- the incorporation of the mold inserts 10 in the casting core 100 is preferably carried out during core shooting in a core mold.
- the mold insert 10 is first positioned in the desired position within the core mold and fixed if necessary. Subsequently, the freestanding contact regions 24 of the mold inserts 10 are completely surrounded during the filling process of the core mold with core sand. After curing of the binder, the mold inserts 10 are connected to the casting core 100 to form a solid and stable unit. By possibly introduced into the contact areas 24 openings 24, the core sand volume on both sides of the body 20 of the mold insert 10 connected to each other. The casting core 100 is thereby not locally weakened.
- a casting core 100 produced in this way consisting of core sand and the injected mold inserts 10, is then coated with a size and dried.
- the casting core 100 which is now ready for casting, is subsequently introduced into a casting mold. It forms, together with the mold inserts 100, the desired contour region for the water cooling, that is to say the water jacket 4 surrounding the cylinder walls 2 'and the narrow water webs 5 formed in the cylinder webs 8.
- the casting blank is removed from the casting mold and sanded.
- the molded cardboard, cardboard or paper inserts 10 are automatically removed, because these materials are charred due to the high temperatures during the casting process. Additional or separate cleaning is not necessary.
- the mold inserts 10 are made of fleece, nonwoven fabric, felt, a woven fabric, a knitted fabric or knitted fabric, these can be taken after the casting process with a simple tool on the tabs 50 and removed from the cylinder head 1.
- the mold insert 10 leaves a clean, burr-free opening cross-section for optimum water flow within the cylinder block 1, or in the upper cylinder region of the internal combustion engine.
- the mold inserts 10 of the invention can be made not only simple and inexpensive due to the choice of materials. In particular, they permit the formation of extremely narrow or narrow recesses, channels, cavities and / or contour regions which can not be formed by conventional means.
- the mold inserts 10 made of fiber and / or yarn-containing material are sufficiently stable in order to comply exactly with required dimensions and tolerances. If necessary, however, the material can also be additionally solidified, for example with a binder. At the same time, the inherent elasticity of the materials used ensures that the mold inserts 10 do not break, even if structures of less than 1 mm are formed.
- the durability of the cores 100 is significantly increased, especially during transport or handling.
- the mold inserts 10 according to the invention thus enable the realization of design solutions that could not be realized with hitherto known foundry usual production methods and materials. Furthermore, the production of components is optimized with already achievable by conventional methods cross-sections, in particular, the nuclear-induced rejection is significantly reduced.
- the residues of the mold inserts 10 can be removed very easily.
- the entire system thus represents a cost effective and effective solution.
- the mold inserts 10 need not necessarily be injected into the casting cores 100. It is also possible to fix the base bodies 20 in a positive and / or positive fit, for example by gluing, welding or jamming. Further, the application of the mold inserts 10 is not limited to the formation of narrow water lands 5 between the cylinder bores 3 of a cylinder block 1. On the contrary, they offer the designer the possibility of creating narrow contours in components that were not possible with previous molded materials and production equipment.
- the application of the mold inserts 10 is also not limited to casting cores 100. You can also use the mold inserts 10 in molds to make filigree or narrow recesses and contour areas with these.
- the casting molds - like the casting cores 100 - can be made of sand. But you can also use permanent molds and bring the mold inserts 10 there force and form fit.
- a mold insert 10 for a casting core 100 and / or for a casting mold for the production of components 1 made of cast metal, which are to be provided with small and / or narrow cavities 5, has a rectangular, concave or convex base body 20 in cross-section which has at least one contact region 22 to the cast metal and at least one contact region 24 to the casting core 100 and / or to the casting mold.
- the base body 20 is made of a fiber and / or yarn-containing material.
- the fibrous material is preferably cardboard, paperboard, paper, non-woven, non-woven or felt, while the yarn-containing material is a woven, knitted or knitted fabric.
- the fibrous and / or yarn-containing material may also be mixed and / or impregnated with a binder.
- breakthroughs may be provided in the contact areas 24 to the casting core 100 and / or to Mold 30 breakthroughs. You can form the mold inserts 10 without any breakthrough 30. Or one brings one or more breakthroughs (not shown) into the contact area of the main body 20 to the casting metal in order to create there further material contours.
- the base body 20 may be formed in multiple layers, which may be provided with a reinforcement 40. At least one tab 50 formed on the main body 20 can serve to remove the mold insert 10 from the component 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Mold Materials And Core Materials (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009033402A DE102009033402A1 (de) | 2009-07-15 | 2009-07-15 | Formeinlage für einen Gießkern und/oder eine Gießform sowie Gießkern und/oder Gießform mit einer Formeinlage |
| PCT/EP2010/004297 WO2011006651A2 (de) | 2009-07-15 | 2010-07-14 | Formeinlage für einen giesskern und/oder eine giessform sowie giesskern und/oder giessform mit einer formeinlage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2454037A2 EP2454037A2 (de) | 2012-05-23 |
| EP2454037B1 true EP2454037B1 (de) | 2016-09-07 |
Family
ID=43383869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10742718.9A Not-in-force EP2454037B1 (de) | 2009-07-15 | 2010-07-14 | Formeinlage für einen giesskern und/oder eine giessform sowie giesskern und/oder giessform mit einer formeinlage |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2454037B1 (hu) |
| BR (1) | BR112012001028A2 (hu) |
| DE (1) | DE102009033402A1 (hu) |
| ES (1) | ES2597552T3 (hu) |
| HU (1) | HUE031318T2 (hu) |
| PL (1) | PL2454037T3 (hu) |
| WO (1) | WO2011006651A2 (hu) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019112918B3 (de) | 2019-05-16 | 2020-07-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kern zur Verwendung bei einer gießtechnischen Herstellung eines Kurbelgehäuses |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012101893C5 (de) | 2012-03-06 | 2022-06-23 | Ks Huayu Alutech Gmbh | Vorrichtung zur Herstellung eines Zylinderkurbelgehäuses |
| DE102012110258A1 (de) * | 2012-10-26 | 2014-04-30 | Ks Aluminium-Technologie Gmbh | Verfahren zur Herstellung eines Zylinderkurbelgehäuses |
| US10094328B2 (en) | 2016-07-22 | 2018-10-09 | Ford Global Technologies, Llc | Forming assembly and method to provide a component with a passageway |
| AT520849B1 (de) * | 2018-01-16 | 2023-04-15 | Avl List Gmbh | Verfahren zur fertigung eines zylinderblocks einer brennkraftmaschine |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7022078U (de) * | 1972-01-20 | Baur E | Schalenformiger Trichter fur Gießformen | |
| DE3300924A1 (de) | 1983-01-13 | 1984-07-19 | Volkswagenwerk Ag, 3180 Wolfsburg | Vorrichtung zur kuehlung von zylinderstegen |
| DE3512076C1 (de) | 1985-04-02 | 1988-01-21 | Halbergerhütte GmbH, 6600 Saarbrücken | Vorrichtung zur gießtechnischen Herstellung einer Kühleinrichtung von Stegen zwischen benachbarten Zylindern eines Zylinderblocks sowie entsprechend hergestellter Zylinderblock |
| JP2546259B2 (ja) * | 1987-03-12 | 1996-10-23 | アイシン精機株式会社 | 内燃機関用ピストンの製造方法 |
| AT388319B (de) * | 1987-08-20 | 1989-06-12 | Avl Verbrennungskraft Messtech | Giesskern fuer den wassermantel eines zylinderblockes einer mehrzylinder-hubkolben-brennkraftmaschine |
| DE3831285A1 (de) * | 1987-09-17 | 1989-04-06 | Aisin Seiki | Verfahren zur herstellung eines kolbens einer brennkraftmaschine |
| DE3932562A1 (de) * | 1989-09-29 | 1991-04-11 | Kolbenschmidt Ag | Vorrichtung zur herstellung von leichtmetallkolben fuer verbrennungskraftmaschinen |
| US5217059A (en) * | 1992-01-16 | 1993-06-08 | Cmi International | Casting core and method for forming a water jacket chamber within a cast cylinder block |
| DE4224078A1 (de) * | 1992-07-21 | 1994-01-27 | Hagen Batterie Ag | Gittergießform zum Gießen von Akkumulatoren-Bleigittern und Verfahren zu deren Herstellung |
| US5702628A (en) * | 1992-07-30 | 1997-12-30 | Nemoto; Masaru | Method of fabricating article by using non-sand core and article produced thereby, and core structure |
| DE19832718A1 (de) | 1998-07-21 | 2000-01-27 | Vaw Alucast Gmbh | Verfahren zum Erzeugen eines kleinen Hohlraumes in einem Gußstück |
| DE10334855B3 (de) * | 2003-07-29 | 2004-12-09 | Hottinger Maschinenbau Gmbh | Verfahren und Vorrichtung zur Positionierung metallischer Teile in oder an Gießereikernen und Gießformen |
| DE102008023336A1 (de) * | 2008-05-13 | 2008-11-06 | Daimler Ag | Gießkern zum Herstellen eines Gussbauteils |
-
2009
- 2009-07-15 DE DE102009033402A patent/DE102009033402A1/de not_active Ceased
-
2010
- 2010-07-14 PL PL10742718T patent/PL2454037T3/pl unknown
- 2010-07-14 HU HUE10742718A patent/HUE031318T2/hu unknown
- 2010-07-14 WO PCT/EP2010/004297 patent/WO2011006651A2/de active Application Filing
- 2010-07-14 EP EP10742718.9A patent/EP2454037B1/de not_active Not-in-force
- 2010-07-14 BR BR112012001028A patent/BR112012001028A2/pt not_active IP Right Cessation
- 2010-07-14 ES ES10742718.9T patent/ES2597552T3/es active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019112918B3 (de) | 2019-05-16 | 2020-07-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Kern zur Verwendung bei einer gießtechnischen Herstellung eines Kurbelgehäuses |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2454037A2 (de) | 2012-05-23 |
| HUE031318T2 (hu) | 2017-07-28 |
| DE102009033402A1 (de) | 2011-01-27 |
| WO2011006651A3 (de) | 2011-04-21 |
| ES2597552T3 (es) | 2017-01-19 |
| PL2454037T3 (pl) | 2017-01-31 |
| WO2011006651A2 (de) | 2011-01-20 |
| BR112012001028A2 (pt) | 2016-03-15 |
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