EP3024607A1 - Giessvorrichtung und giessverfahren - Google Patents
Giessvorrichtung und giessverfahrenInfo
- Publication number
- EP3024607A1 EP3024607A1 EP14738472.1A EP14738472A EP3024607A1 EP 3024607 A1 EP3024607 A1 EP 3024607A1 EP 14738472 A EP14738472 A EP 14738472A EP 3024607 A1 EP3024607 A1 EP 3024607A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder head
- component
- manufactured
- casting
- melt
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000000155 melt Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000006467 substitution reaction Methods 0.000 claims abstract description 3
- 239000004576 sand Substances 0.000 claims abstract 2
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000000289 melt material Substances 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000035744 Hura crepitans Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B22C9/101—Permanent cores
-
- 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
- B22C9/06—Permanent moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/065—Cooling or heating equipment for moulds
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
- B22D27/11—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of mechanical pressing devices
Definitions
- the invention relates to a casting apparatus and a casting method for producing or finishing a cylinder head.
- the feeder system serves to compensate for the shrinkage of the casting during cooling and to avoid voids inside the solidifying casting.
- the feeder system When producing a cylinder head of a four-cylinder engine, the feeder system has a melt volume of about 1 kg, with 6-cylinder cylinder heads a melt volume of about 20 kg. The Large amount of melt volume is therefore necessary to ensure that the melt in the feeder is still liquid when the component to be finished is finished. As a result, it is always possible to ensure compensation of the shrinkage via the feeder system.
- the feed system is conventionally surrounded by the sandpit core and is thereby also thermally insulated
- a casting device for the production of components in particular cylinder heads, provided with a liftable from the component to be manufactured and reusable steel core, which has a movable, can be pressed into the component to be manufactured displacement.
- the sandbox core with integrated feeder system used in the prior art method is completely substituted by the steel core.
- a feeder system in the context of the prior art becomes obsolete.
- the steel core is used instead of the previously Deten Sanddeckkerns placed on the component to be manufactured and forms its surface contour in the negative.
- a displacer element is pressed into the not yet solidified component to be manufactured (melt), whereby the volume of the displacer element is displaced to melt.
- This displaced melt volume serves as a substitute for the melt otherwise fed via the feeders. Dense feeding thus takes place with melting material, which is originally provided by the component to be manufactured itself. In this case it can be provided to provide a minimally increased machining allowance of melt material on the upper flange surfaces.
- the displacer element is arranged at a position of the steel core, which correlates with a position of the component to be manufactured, which forms a recess in a final state of the component to be manufactured.
- the impressions of the displacer in the component to be manufactured is thus simultaneously a production step of a recess in the component to be manufactured.
- the position of the displacer corresponds to the position of the spark plug well of the cylinder head. The number of displacement in such a case depends on the number of cylinders to the cylinder head.
- Displacer is designed as a movable steel pin which is pressed into the melt of the cylinder head and there generates a cylindrical recess.
- the displacement element is equipped with a cooling device and / or heating device.
- the Cooling device is designed to pass on the displacement element air, water or oil as a coolant, for example, over internal channels to cool it.
- a heating device a heating cartridge is integrated in the displacer element in a possible embodiment.
- the displacer can be cooled and / or heated and the action on the melt in the region of the displacer selectively and individually tuned.
- Also part of the invention is a method for producing a cylinder head in the casting process, wherein a can be lifted off and reused on the component to be manufactured steel core is used as a substitution for a Sandeckkern, the one
- Displacer has, which is pressed to feed a melt into a melt, which forms the cylinder head in the solidified state.
- the invention provides that the
- Displacement element is first pressed into the cylinder head after the melt has cooled down so far that it has formed an outer skin. This is favorable because a wall shell is present on the sand core and not the melt is pressed into the sand core of the cylinder head.
- the advantages of the device according to the invention and of the method according to the invention are, in particular, that the hitherto necessary sand core with integrated feeder system is completely replaced by a single steel core.
- the steel core according to the invention can be integrated into the casting plant, reusable and lifted off the component to be manufactured.
- the feeder volume provided by the component to be manufactured itself is equivalent to only 10-15% of the original volume previously provided in feeders. Due to the reduced melt volume, a faster solidification and shorter cycle times occur. When using the space which is displaced by the displacer element (for example as a spark plug shaft), a subsequent stressing process can be used. to be avoided.
- FIG. 1 shows a cylinder head with a feeder system according to the
- Figure 2 is a sectional view of a device according to the invention for casting a cylinder head
- Figure 3 is a perspective view of the device of Figure 2.
- Figure 4 is a perspective view of a cylinder head of FIG.
- FIG. 1 shows a perspective view of a cylinder head 21 with a feeder system 20 arranged thereon.
- the feeder system here for a four-cylinder engine, contains the melt, which compensates for the shrinkage of the solidifying component and ensures the supply of gas.
- the feeder system 20 is surrounded by a sandpit core (not shown). ben, which forms the upper end surface for the cylinder head 21 and receives the feeder system 20.
- the sandpit core and feeder system 20 have considerable volume and weight.
- the casting apparatus 10 according to the invention is shown in a side sectional view, with components not relevant to the invention are omitted.
- the casting apparatus 10 has a steel core 1 that can be lifted off and reused by the cylinder head 2, through which a plurality of displacement elements 3 designed as steel pins extend.
- the displacement elements 3 are movable and can be pressed into the cylinder head via a control device 7 at a predetermined time and with a predetermined duck.
- a predetermined time means in this case that the melt of the cylinder head may not yet solidified, so that the penetrating displacer 3 leads to a displacement of melt.
- the surplus of melt obtained by the displacement is distributed essentially over the entire cylinder head 2 and that as density feed.
- the feeder system 20 of Figure 1 is thus obsolete.
- FIG. 3 shows the casting device 10 from FIG. 2 in a perspective view.
- the steel core 1 can be seen from its lower, the cylinder head 2 side facing.
- the position of the steel core 1 can be seen from its lower, the cylinder head 2 side facing.
- Displacer 3 is chosen such that they correlate with positions of the cylinder head 2, which in the finished state each form the spark plug well.
- the steel core 1 has a plurality of projections 4 on its surface facing the cylinder head 2, which form a cavity in the finished state of the cylinder head 2.
- the surface geometry of the steel core 1 can thus be selected to form a negative of the component to be manufactured, in this case the cylinder head 2.
- Figure 4 shows a perspective view of a cylinder head 2, with the correlating to the displacement elements 3 positions 5, which form the spark plug shaft in the cylinder head 2.
- An illustration of the sand core to form the remaining cavities within the cylinder head 2 has been omitted.
- the basic shape shown is poured as usual. To guarantee the density feed, however, the feeder system 20 from FIG. 1 is no longer used but rather the one integrated in the steel core 1
- Displacer 3 is pressed into the partially solidified melt of the cylinder head 2.
- the casting apparatus 10 closes the component to be manufactured tightly with the steel core 1, so that the internal pressure increases as a result of the impressions of the displacement elements 3, whereby the material disappearing during the melt is compensated.
- the melt Once the melt has solidified sufficiently that the displacement elements 3 can be pulled back into the steel core 1, without causing deformation in the corresponding areas, the steel core can be lifted and the component, in this case the cylinder head 2 are removed.
- an additional feeder system 9 is still used on a component to be manufactured, in particular in areas which are not in direct fluid communication with the positions 5. That in areas that can not be reached by the displaced melt material, an additional feeder system 9 may well be arranged. However, this is minimal in terms of its volume and weight compared to the feeder systems according to FIG.
- the invention is not limited in its execution to the above-mentioned preferred embodiment. Rather, a number of variants conceivable, which makes use of the illustrated solution also of fundamentally different types.
- the displacer element does not have to form a spark plug shaft, but can release other recesses desired in the component to be manufactured.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013214534.9A DE102013214534B4 (de) | 2013-07-25 | 2013-07-25 | Gießvorrichtung und Gießverfahren |
PCT/EP2014/064528 WO2015010886A1 (de) | 2013-07-25 | 2014-07-08 | Giessvorrichtung und giessverfahren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3024607A1 true EP3024607A1 (de) | 2016-06-01 |
EP3024607B1 EP3024607B1 (de) | 2018-02-28 |
Family
ID=51176370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14738472.1A Active EP3024607B1 (de) | 2013-07-25 | 2014-07-08 | Giessvorrichtung und giessverfahren |
Country Status (5)
Country | Link |
---|---|
US (1) | US10618105B2 (de) |
EP (1) | EP3024607B1 (de) |
CN (1) | CN105246617B (de) |
DE (1) | DE102013214534B4 (de) |
WO (1) | WO2015010886A1 (de) |
Families Citing this family (3)
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 |
CN110640097B (zh) * | 2019-09-16 | 2020-11-27 | 溧阳市新明机械配件制造有限公司 | 一种方便控制下料量的砂芯制作用脱料装置 |
CN116079007B (zh) * | 2023-04-07 | 2023-06-09 | 蓬莱金创精密铸造有限公司 | 一种用于汽车排气接头的铸造模具及制造工艺 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
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CH236619A (de) * | 1940-08-03 | 1945-02-28 | Ford Motor Co | Giessform. |
CH267159A (de) * | 1945-03-24 | 1950-03-15 | Philips Nv | Verfahren zur Herstellung von Gussstücken, insbesondere Matrizen, aus dickflüssigen Metallen und Metallegierungen. |
US3664410A (en) * | 1969-06-12 | 1972-05-23 | American Standard Inc | Die casting densifier and ejector apparatus |
JPS5116347Y2 (de) * | 1971-10-27 | 1976-04-30 | ||
JPS5416250B2 (de) | 1971-11-11 | 1979-06-21 | ||
US4875518A (en) * | 1987-08-21 | 1989-10-24 | Honda Giken Kogyo Kabushiki Kaisha | Method of and apparatus for low-pressure casting of light metal alloy |
JPS6453750A (en) * | 1987-08-24 | 1989-03-01 | Honda Motor Co Ltd | Secondary pressurizing casting method |
DE69005276T2 (de) * | 1989-12-15 | 1994-07-21 | Peugeot | Verfahren zur Herstellung einer Zündkerzöffnung in einem Zylinderkopf einer Brennkraftmaschine. |
DE19803397A1 (de) * | 1998-01-29 | 1999-08-05 | Volkswagen Ag | Gießform zum Herstellen von Gußstücken |
JP3043751B1 (ja) | 1999-04-08 | 2000-05-22 | 花野商事株式会社 | 金属成形方法及び金属成形装置 |
KR20010053232A (ko) * | 1999-04-30 | 2001-06-25 | 제임스 이. 미러 | 실린더 헤드의 주조 장치 및 주조 방법 |
DE10011221A1 (de) * | 2000-03-08 | 2001-09-13 | Volkswagen Ag | Druckgießform |
AU2001280541A1 (en) * | 2000-07-17 | 2002-01-30 | Consolidated Engineering Company, Inc. | Methods and apparatus for utilization of chills for castings |
JP4110984B2 (ja) * | 2003-01-29 | 2008-07-02 | 日産自動車株式会社 | シリンダヘッド鋳造用鋳型 |
JP2007512144A (ja) * | 2003-11-26 | 2007-05-17 | マリー・トーマス・ジルズ・ラッフル | 金属物品の鋳造 |
DE102006036369B4 (de) * | 2006-08-02 | 2009-04-09 | Kahn, Friedhelm, Prof. Dr. Ing. | Verfahren und Vorrichtung zur Herstellung von Bauteilen durch integriertes Schmelzen, Gießen und Umformen |
JP2008073763A (ja) * | 2006-08-25 | 2008-04-03 | Sukea X:Kk | 車両ホイールの製造方法 |
JP2008055473A (ja) * | 2006-08-31 | 2008-03-13 | Mitsubishi Heavy Ind Ltd | アルミダイカスト製品の製造方法および装置 |
DE102006057786A1 (de) * | 2006-12-06 | 2008-06-12 | Almecon Entwicklungs-, Beratungs- Und Beschaffungsgesellschaft Mbh | Verfahren zur Herstellung von Formteilen aus Metall mittels einer Pressvorrichtung und Pressvorrichtung zur Durchführung des Verfahrens |
CN101954469B (zh) * | 2010-06-29 | 2012-04-25 | 北京交通大学 | 一种斗齿的制造方法及其所使用的模具 |
CN102029383B (zh) * | 2010-12-14 | 2012-10-17 | 何丙军 | 铝合金车轮重力铸造模具及其铸造方法 |
FR2976830B1 (fr) * | 2011-06-23 | 2013-06-28 | Peugeot Citroen Automobiles Sa | Machine et procede d'assemblage d'un modele pour moulage a modele perdu, procede de moulage correspondant |
CN102641996A (zh) * | 2012-04-16 | 2012-08-22 | 芜湖永裕汽车工业有限公司 | 一种发动机气缸盖气道砂芯结构 |
-
2013
- 2013-07-25 DE DE102013214534.9A patent/DE102013214534B4/de active Active
-
2014
- 2014-07-08 CN CN201480030963.4A patent/CN105246617B/zh active Active
- 2014-07-08 EP EP14738472.1A patent/EP3024607B1/de active Active
- 2014-07-08 WO PCT/EP2014/064528 patent/WO2015010886A1/de active Application Filing
-
2015
- 2015-10-22 US US14/920,185 patent/US10618105B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN105246617B (zh) | 2019-07-16 |
DE102013214534B4 (de) | 2021-07-01 |
WO2015010886A1 (de) | 2015-01-29 |
EP3024607B1 (de) | 2018-02-28 |
US10618105B2 (en) | 2020-04-14 |
DE102013214534A1 (de) | 2015-01-29 |
CN105246617A (zh) | 2016-01-13 |
US20160038995A1 (en) | 2016-02-11 |
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