EP1695777A1 - Dispositif et procédé de coulée - Google Patents

Dispositif et procédé de coulée Download PDF

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Publication number
EP1695777A1
EP1695777A1 EP06002023A EP06002023A EP1695777A1 EP 1695777 A1 EP1695777 A1 EP 1695777A1 EP 06002023 A EP06002023 A EP 06002023A EP 06002023 A EP06002023 A EP 06002023A EP 1695777 A1 EP1695777 A1 EP 1695777A1
Authority
EP
European Patent Office
Prior art keywords
mold
casting
melt
station
molds
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.)
Withdrawn
Application number
EP06002023A
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German (de)
English (en)
Inventor
Hans-Eckart Joost
Ralf Hageleit
Uwe Sucher
Hermann Fuchs
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.)
Senator Technology GmbH
Original Assignee
Senator Technology 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 Senator Technology GmbH filed Critical Senator Technology GmbH
Publication of EP1695777A1 publication Critical patent/EP1695777A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/006—Casting by filling the mould through rotation of the mould together with a molten metal holding recipient, about a common axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/02—Top casting
    • 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
    • B22D27/13—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of gas pressure

Definitions

  • the invention relates to a casting method for casting metallic workpieces, in particular of light metal, as well as a casting plant for carrying out such a method.
  • the casting method according to the invention is used for casting metallic workpieces and is particularly suitable for casting of metallic workpieces made of light metal, in particular light metal rims for motor vehicles.
  • the casting takes place by gravity casting in a mold.
  • a casting station is provided, at which the melt from the furnace by gravity casting, d. H. poured from above into the mold. After the pouring of the melt, at least the pouring opening through which the melt has been poured into the mold is closed. If further openings are provided on the mold, for example feeders, these are preferably also closed after pouring. Subsequently, the melt is pressurized inside the mold.
  • the melt is pressurized in the sprue and / or in any feeders present, so that upon solidification of the workpiece from the sprue and / or the feeders by the pressurization still liquid melt is pressed into the actual shape of the mold, so compensate for the shrinkage of the workpiece during solidification.
  • the pressurization of the liquid melt in the sprue and feed channels after casting a similar effect as in low-pressure casting is produced, so that perfect workpieces can be cast by gravity casting.
  • the pressurization of the mold is maintained even when the mold is moved away from the casting station.
  • This allows the mold not to remain at the casting station during the entire solidification process in order to maintain the pressure in the sprues. Rather, the mold can be moved away immediately after pouring from the casting station, wherein the pressurization is maintained, so that the solidification process of the melt outside of the casting station can be done under pressure.
  • This makes it possible to release the casting station as quickly as possible in order to cast a next mold there.
  • the cycle times compared to the low-pressure casting method, which is currently used for casting of alloy wheels be significantly shortened, so that a more cost-effective production of castings, such as alloy wheels is made possible by the inventive method.
  • this method can be automated in such a way that the manpower requirement during casting is reduced.
  • the pressurization is preferably maintained until the melt solidifies. Ie. until solidification of the workpiece to be cast, the melt remains under pressure, in particular in the sprues and optionally feeder channels, so that liquid melt from these areas of the mold into the actual shape, which can follow the workpiece in a defined manner, until complete solidification Shrinkage of the workpiece to compensate for solidification. If necessary, the sprue or feeder can be heated to allow the melt to move up to solidification of the workpiece. After complete solidification, the pressurization can then be lifted and the workpiece is first cooled until it is removed from the mold even further.
  • a compressed gas for example compressed air
  • the melt can be easily pressurized by the compressed gas is introduced through appropriate openings in the mold.
  • the pressure exerted on the melt can be varied slightly by adjusting the gas pressure, so that it can be adapted to the specific casting process, in particular the material to be cast and the shape of the adherend, in order to achieve an optimum casting result.
  • At least the sprue or the sprue and / or a feeder is pressurized with pressurized gas to pressurize the melt.
  • the pressurized gas is directed to the surface of the melt in the sprue, so that a pressure is exerted on the surface of the melt, which presses the melt further into the interior of the mold, so that the shrinkage of the workpiece can be compensated and so a cavitation is prevented.
  • the gate of the mold is closed with a closure device, wherein compressed gas is passed through the closure device onto the surface of the melt.
  • the closure device preferably has at least one opening through which the compressed gas is passed into the cavity located above the impinging melt in the gate. This opening can be connected to a compressed gas connection and via lines to a compressed gas source.
  • the arrangement of the compressed gas supply in the closure device can ensure that the melt in the gate is pressurized directly after closing the gate. Accordingly, such closure devices can also be arranged on a plurality of gates or feeders to close them to the outside and to pressurize the upcoming melt with pressure. It is not necessary with sufficient pressure gas supply that the closure device seals the mold absolutely gas-tight.
  • a leakage of compressed gas can be compensated by increased supply of compressed gas, so that a constant sufficient gas pressure at the surface of the melt can be ensured.
  • the casting method according to the invention is preferably carried out such that a plurality of molds are provided in order to be able to pour a large number of workpieces directly one after the other.
  • melt is successively poured into the molds at a casting station in such a way that a mold filled with melt is moved away from the casting station while the pressurization is maintained and then or simultaneously the casting station is supplied with the next empty mold for pouring melt.
  • a further mold can already be filled with melt at a casting station, even if the workpiece has not yet solidified in the preceding mold. After pouring in turn, this mold is moved away under pressure from the casting station and fed to the next mold, etc.
  • the molds are moved away after pouring the melt under pressure from the casting station and at the same time a next prepared empty mold is fed to the casting station.
  • the molds filled with melt at the casting station continue to be cycled in succession as soon as a new mold is fed to the casting station.
  • the workpieces are then removed at a respective unloading or removal station from the molds and then the molds are each prepared for a new cast and fed back to the casting station.
  • the molds move in a preferably closed circuit, whereby they are moved clocked, ie all molds are always moved simultaneously in the cycle one step.
  • the molds are preferably recirculated on a rotary table or a traverse device in the form of a rectangular or annular path.
  • the plurality of molds are arranged in a circle and the rotary table is moved after each casting by an angle such that the next empty mold is supplied to the caster. Accordingly, all other molds continue to move through a corresponding angle, whereby they can be supplied to different work stations of the system, in particular a removal station, in which the cast workpieces are removed from the molds and a preparation station, where the empty molds prepared for the next casting become.
  • a plurality of dies may also be recirculated in a traversing device of annular or circular design in some other way.
  • a traversing device of annular or circular design in some other way.
  • an arrangement of four straight traversing devices is conceivable, which together form a rectangular path over which the molds are traversed clocked, wherein the traverse at the corners of the traversing varies by 90 °.
  • a mobile accumulator can be moved with the mold according to a specific embodiment.
  • compressed gas in particular compressed air is present, which is passed into the mold to pressurize the surface of the melt with pressure.
  • the pressure accumulator is in particular present to compensate for the gas volume flowing through leaks, so as to maintain a sufficient pressure at the surface of the melt.
  • a fixed pressure gas supply instead of a pressure accumulator, be provided, ie the molds are connected via pressure lines with a fixed or central source of compressed gas.
  • the filling of the melt in the mold at the casting station can be carried out in a special embodiment in Kippg screen compiler.
  • the mold is tilted during pouring or pivoted about one or more horizontal axes, so that a quiet sprue and better venting of the mold is achieved.
  • the melt is poured into a casting funnel or sprue channel arranged in the mold, which extends from the upper side of the mold to just above the bottom of the mold.
  • This pouring funnel forms a tube through which the melt is first passed into the lower region of the mold during the pouring, so that the melt rises in the mold from below.
  • the filling of the mold takes place in a similar manner as in low-pressure casting, in which the mold is filled from below.
  • the pouring funnel may be adapted in shape to the workpiece, for example be formed as a cylindrical tube, but also have a conical shape, so that it narrows towards the bottom of the mold or to the pouring opening.
  • the feeder or the sprue in particular the pouring funnel or sprue, can be designed to keep the melt liquid for as long as possible and to allow the melt to move up into the mold until the workpiece solidifies completely.
  • the invention further relates to a casting plant, which is suitable for carrying out the method described above.
  • This casting plant has a casting station and at least one mold. Further, a conveyor is provided, on which the mold of the casting station can be supplied and can be moved away from the mold. At the mold, a pressure generating device is mounted, through which the melt in the mold during the movement of the mold away from the casting station is pressurized away.
  • This embodiment of the mold in the casting plant according to the invention makes it possible, after pouring the melt into the mold, to pressurize the melt and, under pressure, move the mold away from the casting station. In this way, the pouring station is released after the pouring of the melt before the solidification of the melt, so that a further empty mold of the casting station can be supplied for pouring.
  • the pressure-generating device is designed so that the pressure acting on the melt pressure can be maintained even further in the further transport of the mold in the system until the melt is completely solidified.
  • it is possible to further promote the mold by pressurizing the melt through one or more cooling stations.
  • a plurality of molds or a plurality of molds is preferably provided, so that these molds can be successively filled with melt at the casting station.
  • a mold is filled with melt, it is moved under pressure from the casting station and simultaneously fed to the next empty mold for casting the casting station, etc.
  • the already cast molds then move until the melt solidifies by pressurizing the melt in the caster further. It is not necessary to keep the molds at a certain position in the system at which the pressurization takes place.
  • the mold or each mold has at least one pouring opening and / or a feeder, on which a closing device for closing the mold is arranged.
  • the closure device makes it possible, after pouring the melt into the mold, the mold at its openings, d. H. To close feeders and / or gates, so that then the melt in the interior of the mold can be pressurized.
  • openings are preferably provided in the mold through which compressed gas can be introduced into the mold, which exerts a pressure on the surface of the melt.
  • the opening for introducing the compressed gas is preferably in the sprue or runner of the mold, so that the melt present there can be acted upon at its surface with compressed gas, for example compressed air to hold the metal during solidification under pressure, similar to the low-pressure casting.
  • the closure device on a compressed gas supply, for example, a compressed air supply.
  • a compressed gas supply for example, a compressed air supply.
  • the closure device for example a closure slide, it can be achieved that the pressure is applied directly when the mold is closed by the closure device. By maintaining the pressure gas supply pressure losses can be compensated by leakage.
  • the sealing of the closure device no particularly high demands must be made, ie the closure device does not necessarily have to be absolutely pressure-tight.
  • a pressure generating device which has a co-movable with the mold compressed gas supply.
  • This mitbewegbare compressed gas supply can be in the form of compressed gas lines, which lead to a fixed or central source of pressurized gas, the lines are formed so that they allow movement of the molds through the caster.
  • Such an arrangement is particularly suitable for the use of a rotary or rotary table in the casting plant.
  • Such a compressed gas supply can be formed by a pressure accumulator, which is attached to the mold or the closure device.
  • a station may be provided at which this mobile pressure accumulator is refilled again. This is preferably done in the preparation of the mold for the next sprue. This embodiment allows a much freer movement of the molds in the caster, which can be particularly advantageous for very large systems with a large number of molds.
  • the casting station, at least one cooling station and a removal station are provided in the casting system according to the invention, which are connected by the conveyor such that the at least one mold between the individual stations by the conveyor is movable.
  • a plurality of molds are provided, which are movable via the conveyor between the individual stations.
  • a preparation station is provided after which the mold can optionally be cleaned and prepared for the next pouring.
  • a plurality of cooling stations are provided, so that several molds can cool at the same time, via the pressure generating device, the melt in the molds is preferably applied to complete solidification with pressure.
  • cooling stations cooling of the molds can be done solely by the ambient air.
  • special cooling devices to accelerate the solidification of the melt and / or to achieve a targeted cooling of the melt inside the mold.
  • the conveyor connects the casting station, the at least one cooling station and the removal station in such a circle that several dies clocked in the circuit between these individual stations are movable.
  • This movement preferably takes place in such a way that at least a plurality of molds, preferably all molds, are moved simultaneously.
  • the molds are pushed one position further with each movement, so that the straight at the.
  • Casting station filled mold is moved to a cooling station and at the same time a new mold is fed to the casting station.
  • a previously located at the cooling station mold is simultaneously moved to the removal station, where the casting can be removed from the mold.
  • the mold is preferably moved to a preparation station at which the mold is prepared for the next casting operation. Subsequently, one or more preheating stations can be provided, at which the prepared molds are heated.
  • a plurality of cooling stations may be provided, each of the molds preferably passing through all the cooling stations in succession.
  • buffer stations may still be provided in the plant, at which dies dwell between the individual stations. This depends on the size of the casting plant.
  • a station can also be provided, on which it is possible to remove molds from the circuit or to add new molds to the circuit in order, for example, to exchange damaged molds or to supply the system successively with molds for another workpiece during operation that during continuous operation, the casting plant can be converted to other castings.
  • the traveling or conveying device is formed by a rotatable rotary table which further rotates the molds between the stations.
  • a rotatable rotary table which further rotates the molds between the stations.
  • several molds are arranged distributed in a known manner over the circumference.
  • the rotary table is further rotated by an angle which corresponds to the angle between two molds, whereby the molds are successively conveyed through the individual stations of the casting, in particular successively the casting station and a removal station to be supplied.
  • so many molds are provided on the rotary table, that the molds are not moved directly from the casting station to the removal station, so that in the movement from the casting station to the removal station sufficient time remains that the melt solidify inside the mold and that casting can cool down.
  • the pressurization of the mold is preferably maintained until complete solidification.
  • the conveyor can also be formed by other, for example, linearly operating conveyors, in which case a plurality of linearly moving conveyor or traversing devices are arranged at an angle to each other, so that a closed circuit is formed, in which the molds are moved through the system ,
  • a mold 1 is shown schematically.
  • the mold 1 is formed divided in a known manner so that the finished cast workpiece can be removed by opening the mold from this. Possibly. Furthermore, additional cores may be provided.
  • a pouring funnel 2 is provided with an upwardly open sprue 4.
  • the pouring funnel 2 extends in a tubular extension 6 in the interior of the mold until in the vicinity of the bottom 8 of the mold, ie that part of the mold 1, which defines the later shape of the workpiece to be cast.
  • the pouring funnel 2 with the tubular extension 6 can be designed to be heated in order to keep the melt liquid as long as possible during casting in the pouring funnel.
  • step A the mold 1 is shown in the closed and empty state in step A.
  • step B in FIG. 1 the same mold is shown in a second process step, in which the mold 1 is filled with melt 10, that is to say in FIG. H.
  • Step B shows the casting process.
  • the tubular extension 6 of the sprue 2 causes the melt to enter the mold substantially from below and rise from below. As a result, a uniform and quiet filling of the mold is achieved.
  • Step C in Fig. 1 shows the further course of the casting process, d. H. the mold 1 is already filled with melt 10.
  • the state shown in illustration C in Fig. 1 represents the point at which the pouring of the melt 10 into the mold 1 is terminated, i. H. the required volume of melt is filled into the mold 1.
  • the pouring funnel 2 is still filled with melt, but the mold inside the mold 1 is not yet completely filled with melt in its upper portions 12.
  • a slide 14 is pushed onto the pouring funnel 2 in the direction of the arrow a, so that the pouring opening 4 is closed by the slide 14 becomes.
  • a pressure accumulator 16 is arranged, is stored in which compressed air.
  • the accumulator 16 is connected via a line 18 to the slider 14, wherein the line 18 through the pressure accumulator 16 through to the top of the slider 14th extends.
  • a pressure reducer 20 and a shut-off valve 22 are arranged.
  • the pressurization which is shown schematically in the representation D in FIG. 1, is maintained during the solidification process of the melt 10, so that during solidification from the pouring funnel 2 or its tubular extension 6 still melt 10 can flow into the actual mold in order to compensate for the shrinkage of the workpiece during cooling of the melt 10 can.
  • a similarly good casting result as in low-pressure casting can be achieved by means of the pressurization also in gravity casting.
  • the volume of the melt 10 remaining in the sprue 4 or the sprue 2 is kept very low by the pressurization, so that only a small sprue is formed, so that the circulation material is kept low in the inventive method.
  • the sprue which is defined by the pouring funnel 2 and its tubular extension 6, is centrally in the center of the mold 1, so that the sprue is formed centrally in the middle of the cast rim where it can easily be drilled or cut off.
  • the pressurization of the mold 1 is such that the pressurization is maintained even during the movement of the mold and the mold 1 is moved away under pressure from the casting station, at which the mold is filled with melt.
  • this is achieved by the pressure accumulator 16, which is connected to the slider 14 and thus to the mold 1 and can be moved together with this.
  • the compressed air in the pressure accumulator 16 has a higher pressure than is required for pressurizing the melt 10.
  • a pressure reducer 20, via which the pressure acting on the melt 10 can be adjusted is provided.
  • the shut-off valve 22 is expediently designed so that it can be automatically opened and closed in the casting machine when the mold 1 reaches or passes a certain point in the system.
  • the point for shooting the shut-off valve 22 is located at a position at which the melt in the mold 1 is solidified, so that a pressurization is not required.
  • Fig. 2 shows schematically the flow of the casting according to a special variant of the method according to the invention, in which the mold 1 is tilted during the pouring.
  • steps A, B, C in Fig. 2 it can be seen how the mold 1 is rotated or tilted during the pouring of the melt 10 and after the pouring of the melt 10 with respect to the horizontal H. This corresponds to the known method of Kippgie healths.
  • step D after the complete pouring of the melt 10, the mold 1 is again in the horizontal position, ie with the pouring funnel 2 and the pouring opening 4 directed upward. In this state, the mold 1 is completely filled with melt 10.
  • the mold 1 is completely filled with melt 10.
  • Fig. 3 shows schematically the overall structure of a casting plant for carrying out the method according to the invention.
  • the plant has four rectangular arrangement forming conveyor tracks 24a, 24b, 24c and 24d, which form a closed circuit for the molds 1.
  • the molds 1 are filled with melt. After pouring the melt, the molds 1 are closed at the casting station 26, as described with reference to FIGS. 1 D and 2D, directly through a slide and pressurized with compressed air. While maintaining this pressurization, the dies 1 are conveyed into a cooling station 28.
  • the cooling station 28 is designed such that five molds 1 find space in it, ie. H. five consecutive cooling stations are formed. While the molds 1 pass through the cooling station 28, the melt 10 solidifies inside the molds 1 while maintaining the pressurization, as described with reference to FIG. 1 D.
  • the molds 1 are conveyed via the conveyor tracks 24c to a removal or unloading station 30.
  • the removal station 30 are the Kokillen opened and removed the castings and moved over the conveyor track 32 for further processing from the caster.
  • the opened mold is conveyed from the removal station 30 via the conveyor track 24d to a preparation station 34, in which the mold is cleaned, if necessary nachgeschlichtet and prepared for the next sprue.
  • a compressed air supply 36 is further arranged with a compressed air tank 38, via which the pressure accumulator 16 (see FIG. 1 D and FIG. 2D) are refilled at the individual dies 1.
  • a quick coupling may be provided at the pressure accumulators 16, which, when the mold 1 reaches the preparation station 34, is automatically coupled to the compressed air supply 36 in order to fill the accumulator 16 again.
  • the molds 1 are further promoted to a closing station 40, which is in the example shown at the intersection of the conveyor track 24a and 24b. There, the molds 1 are closed again and then fed via the conveyor track 24a by a preheater 42 of the casting station 26 again.
  • molds 1 can be exchanged, for example, when the molds are damaged or molds for other workpieces to be supplied to the circuit.
  • the plant described with reference to FIG. 3 can be operated largely automated, whereby personnel is essentially only required for monitoring the process and for preparing the molds 1 at the preparation station 34.
  • the opening and closing of the molds, the pouring and the closing of the sprue 4 by means of the slider 14 and the subsequent described pressurization can also be automated.
  • the shut-off valves 22 can be automatically opened at the dies via corresponding stops or levers and closed again in the cooling station 28 or after leaving the cooling station 28.
  • the refilling of the pressure accumulator 16 can also take place automatically.
  • the method can also be realized, for example, by means of a rotary table 44, as shown schematically in FIG. 4.
  • a rotary table 44 On the rotary table 44, six molds 1 are uniformly distributed on the outer circumference in the example shown.
  • the molds are further clocked in the process flow.
  • the mold 1 which is just there is filled with melt 10. Subsequently, as described with reference to FIG. 1 D and 2D, the mold is closed and pressurized with compressed air. Subsequently, the rotary table is clocked by 60 °, so that the Mold passes into a cooling station or a cooling region 28, in which the melt solidifies. The cooling area 28 is formed in front of the four stations between the casting station 26 and the removal station 30. In the cooling region 28, the pressurization of the mold is maintained. Since, in the arrangement on the rotary table 44, the molds 1 maintain their respective positions on the rotary table 44, it is not necessary to provide pressure accumulators 16 on the slides 14 for closing the sprues 4 of the molds 16.
  • all molds 1 can be connected via pressure lines with a central compressed air supply to the rotary table 44, wherein valves are provided in the lines, via which the compressed air supply to the individual molds 1 can be opened and closed automatically preferably.
  • the removal station 30 In the direction of rotation in front of the casting station 26, the removal station 30 is located at which the molds 1 are opened and the castings can be removed automatically or manually and transported further. At the same time, the removal station 30 serves as a preparation station 34 of the dies for the next casting. Diametrically opposite the removal station 30 is the mold change device 45, at which the molds can be taken in and out of the casting process.
  • the promotion of molds which are arranged at fixed positions on the rotary table 44, in a known manner by further rotation of the rotary table 44.
  • the rotary table is due to the arrangement of six dies always by 60 ° turned.
  • more or fewer molds 1 are arranged on the rotary table 44, wherein the angle of rotation of the rotary table 44 per work cycle then changes accordingly.
  • 8-12 molds can be arranged, in particular, the number of dies 1, which are each located in the cooling area 28, increases.

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  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP06002023A 2005-02-17 2006-02-01 Dispositif et procédé de coulée Withdrawn EP1695777A1 (fr)

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DE200510007517 DE102005007517A1 (de) 2005-02-17 2005-02-17 Gießvorrichtung und Gießanlage

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EP1842607A2 (fr) * 2006-04-04 2007-10-10 O. St. Feingussgesellschaft m. b. H. Procédé de soudure fin de pièce de formage métallique et procédé approprié
FR2940158A1 (fr) * 2008-12-19 2010-06-25 Peugeot Citroen Automobiles Sa Procede et systeme de moulage d'une piece metallique de fonderie
US20140131001A1 (en) * 2012-09-25 2014-05-15 Babcock & Wilcox Technical Services Y-12, Llc Method for casting thin metal objects
AT511300B1 (de) * 2011-02-09 2019-03-15 Fill Gmbh Giessverfahren sowie giessanlage zur herstellung von werkstücken
CN114799132A (zh) * 2021-01-20 2022-07-29 通用汽车环球科技运作有限责任公司 铸造在线加压室
CN115213381A (zh) * 2022-09-19 2022-10-21 北京坤飞装备科技有限公司 一种特厚钢板连接方法

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DE102006058142B4 (de) * 2006-12-09 2016-09-01 Volkswagen Ag Verfahren und Vorrichtung zum Kippgießen von Bauteilen aus Leichtmetall
DE102014015557B3 (de) * 2014-10-21 2016-03-03 Heinrich G. Baumgartner Vertikal-Gasdruck-Gießmaschine

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JPS6343754A (ja) * 1986-08-11 1988-02-24 Sanyo Gokin Chuzosho:Kk 簡易金型鋳造方法
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JPS52150735A (en) * 1976-06-11 1977-12-14 Kawasaki Heavy Ind Ltd Tilt and press type metal pattern moulding machine
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EP1842607A2 (fr) * 2006-04-04 2007-10-10 O. St. Feingussgesellschaft m. b. H. Procédé de soudure fin de pièce de formage métallique et procédé approprié
EP1842607A3 (fr) * 2006-04-04 2007-10-17 O. St. Feingussgesellschaft m. b. H. Procédé de soudure fin de pièce de formage métallique et procédé approprié
FR2940158A1 (fr) * 2008-12-19 2010-06-25 Peugeot Citroen Automobiles Sa Procede et systeme de moulage d'une piece metallique de fonderie
AT511300B1 (de) * 2011-02-09 2019-03-15 Fill Gmbh Giessverfahren sowie giessanlage zur herstellung von werkstücken
US20140131001A1 (en) * 2012-09-25 2014-05-15 Babcock & Wilcox Technical Services Y-12, Llc Method for casting thin metal objects
US9004148B2 (en) * 2012-09-25 2015-04-14 Consolidated Nuclear Security, LLC Method for casting thin metal objects
CN114799132A (zh) * 2021-01-20 2022-07-29 通用汽车环球科技运作有限责任公司 铸造在线加压室
CN114799132B (zh) * 2021-01-20 2024-03-15 通用汽车环球科技运作有限责任公司 铸造在线加压室
CN115213381A (zh) * 2022-09-19 2022-10-21 北京坤飞装备科技有限公司 一种特厚钢板连接方法
CN115213381B (zh) * 2022-09-19 2022-12-09 北京坤飞装备科技有限公司 一种特厚钢板连接方法

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