WO1991012104A1 - Methode de moulage a coulee verticale - Google Patents

Methode de moulage a coulee verticale Download PDF

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Publication number
WO1991012104A1
WO1991012104A1 PCT/US1991/000711 US9100711W WO9112104A1 WO 1991012104 A1 WO1991012104 A1 WO 1991012104A1 US 9100711 W US9100711 W US 9100711W WO 9112104 A1 WO9112104 A1 WO 9112104A1
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WO
WIPO (PCT)
Prior art keywords
flask
drag
cope
mold
pouring
Prior art date
Application number
PCT/US1991/000711
Other languages
English (en)
Inventor
Albert J. Tusek
Laimutis P. Klimas
Original Assignee
Combustion Engineering, Inc.
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 Combustion Engineering, Inc. filed Critical Combustion Engineering, Inc.
Publication of WO1991012104A1 publication Critical patent/WO1991012104A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D47/00—Casting plants
    • B22D47/02—Casting plants for both moulding and casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D33/00—Equipment for handling moulds
    • B22D33/02—Turning or transposing moulds

Definitions

  • the present invention relates to foundry casting, and more particularly, to a method and apparatus for the pouring of automotive crank shafts and the like.
  • Automotive crank shafts are commonly manufactured by various casting processes, including the use of a cope and drag sand mold.
  • the mold remains horizontally oriented, i.e., the drag lies flat on a pallet or conveyor and the cope is secured on the drag.
  • the cope typically has a pouring cavity formed in the flat, upwardly facing outer wall thereof, into which the molting metal is poured.
  • a given mold formed by a drag and cope pair can have a plurality of internally defined recesses within the sand, for forming a plurality of crank shafts within a given mold as result of a single pouring operation.
  • the present inventors have, through experience gained with Shell molding processes and Cosworth processes, realized that improved castings can be achieved through a vertical orientation of the mold cavity.
  • the reason for this improvement is that slag and other impurities in the casting can be directed to a riser. In the conventional, horizontal orientation of the cavity, these impurities may be trapped in a critical portion of the crank or cam shaft.
  • the inventors are also aware that high pressure green sand molding provides certain advantages for the casting of crank or cam shafts, particularly dimensional stability.
  • a further known consideration in the casting process is the desirability of retaining the casting in a strong mold for a sufficient duration to allow ample solidification and metallurgical phase transformations to occur before extracting the casting from the mold. Extending the cooling time restrains the casting during the freezing process to assure dimensional control and avoid bending and twisting tendencies of the casting.
  • Typical Shell molding processes are limited in production rates because of dipping and drying practice, which is time consuming. As a consequence the Shell molding process has often been restricted to high cost, low production aircraft castings, or premium casting where the quality demands are unusually high.
  • U.S. Patent 4,804,035 discloses a method of gravity casting crank shafts or the like, wherein the cavity defining the crank shaft is vertically oriented.
  • the general concept of vertically casting a crank shaft is known, but the full implementation of an optimized process for vertically casting crank shafts using cope and drag molds, has not been previously been developed.
  • the invention is directed to improving a conventional green sand molding system by using a flask that has modified parting line flanges on the cope and drag, opposed notches on the parting line flanges define a pouring cavity when the clamped mold is tipped up. This is in contrast to a typical mold with an integral pouring basin and a down sprue located in the cope.
  • the process according to the invention is typically implemented in a production line having two main loops.
  • the first is a flask handling loop in which the cope and drag molds are made in a conventional high production manner while oriented horizontally
  • the second is pour and cooling loop in which each pallet conveys at least one, and preferably two or three molds together as a mold set, to the molten metal pouring station and then through a cooling area.
  • a given mold can be conveyed through the pouring and cooling regions at a slower speed in the second loop than in the flask handling operations of the first loop, without diminishing overall production rates relative to standard horizontal casting processes.
  • the preferred production line has two loops as described above, from a functional point of view, the line has three areas, consisting of (1) the flask handling activities in the first loop, (2) the transfer stations wherein the molds from the first loop are rolled up 90 degrees, picked off the first loop, and placed on pallets in the second loop while the cooled, vertically oriented molds are rolled down 90 degrees from the vertical orientation in the second loop, picked off the pallets and placed onto the first loop, and (3) a casting and cooling area in the second loop, wherein the vertically oriented mold sets are poured and cured.
  • the relatively slower conveying speed of the second loop conserves on plant space while providing sufficient cooling for enhancing the metallurgical requirements of the product.
  • the flasks are again oriented in horizontal position and returned to the mold forming portion of the first loop in a conventional manner.
  • the present invention is particularly effective in foundries that are converting from gray iron to nodular iron, where the need for in-mold cooling is increased because of the shrinkage characteristics of nodular iron in contrast to normal grades of gray cast iron.
  • the invention can be implemented as a retrofit to existing foundries where available space is insufficient for adequate cooling time at normal pallet conveying speeds.
  • Figure 1 is a schematic elevation view of the vertical pouring of crank shafts using cope and drag molds in accordance with the invention
  • Figure 2 is a schematic perspective view of the upper end of a clamped mold in accordance with the invention showing the pouring cavity integrally formed at the parting line of the cope and drag;
  • Figure 3 is a schematic representation of a production line in accordance with the invention, showing the paths of travel of each cope, drag and mold;
  • Figure 4a is a schematic plan view representation of the flask handling area of the production line shown in Figure 3;
  • Figure 4b is a schematic plan view representation of the mold transfer areas of the production line shown in Figure 3;
  • Figure 4c is a schematic plan view representation of the mold pouring and curing area of the production line shown in Figure 3;
  • Figure 5 is an elevation view of a clamped mold adapted for use in accordance with the present invention.
  • Figure 6 is a plan view of the mold of Figure 5, depicted in a manner that shows portions of both the cope and drag;
  • Figure 7 is an elevation end view taken from the right side of Figure 5;
  • Figure 8 is an elevation end view taken from the left side of Figure 5;
  • Figure 9 is an elevation view of the mold tip up and pallet loader station as viewed along line 9-9 of Figure 4b;
  • Figure 10 is an elevation view of the mold tip up and pallet loading station, as viewed along line 10 in Figure 4b;
  • Figure 11 is a schematic perspective view of the mold handling steps at the transfer station between the cooling area of the second loop and the flask handling area of the first loop, along line 11-11 of Figure 4b;
  • Figure 12 is a section view of a preferred arrangement of multiple crank shafts in a given mold. Description of the Preferred Embodiment
  • Figure 1 shows a portion of a crank shaft casting operation 10, in which a ladle 11 containing molten metal 12 is pivotally operated to pour molten metal 12 into a mold set 13 containing one or more, preferably three, vertically oriented, side-by-side molds 14, 15 and 16.
  • a given mold 15 contains sand which defines the shape 17 of the part to be cast.
  • the mold set 13 is conveyed in the direction indicated by arrow 18 as part of an automated production line.
  • Figure 2 is a schematic, perspective view of the upper portion of a given mold (or flask) 15, the full elevation of which is indicated in Figure l.
  • the flask is formed by a cope 19 and drag 20 secured together along a parting line or plane 21, which is vertically oriented during the mold filling operation shown in Figure 1.
  • the cope has a solid, substantially flat face 22 and outer flange 23 extending from the cope face.
  • the cope has relatively longer sidewalls 24 and relatively shorter end walls 25,26 which, together with the face 22, define a substantially rectangular, box-like member having an opening facing the drag 20.
  • a parting line flange 27 surrounds the opening and is preferably of substantially identical dimension as the outer flange 23.
  • the parting flange 27 is notched as shown at 28.
  • the drag 20 is substantially identical to the cope 19 with respect to the features described immediately above.
  • the drag 20 has an outer flange 29 bordering the face 31, upper and lower end walls 32,34, opposed side walls 36, and a parting line flange 37 which abuts the parting line flange 27 of the cope along the vertically oriented parting plane 21.
  • the parting line flange 37 of the drag 20 carries a notch 38 that is complementary to the notch 28, and together therewith forms a pouring cavity 39 through which the molten metal enters the mold 15.
  • an insert basin or the like 41 may fit within the pouring cavity 39.
  • Figure 3 is a schematic representation of a complete production line 42 having two loops 43 and 44.
  • loop 43 will be referred to as the horizontal handling loop
  • loop 44 will be referred to as the vertical handling loop.
  • First loop 43 may be considered to include the handling of a plurality of flask components such as the cope and drag, which are substantially horizontal before vertical re-tilting and transfer to pallets conveyed along the second loop 44.
  • the mold is filled and cooled, before being horizontally re-oriented and transferred to the first loop 43, where the sequence repeats itself substantially continuously.
  • Figures 4a, b and c depict respectively the portions of the loops indicated in Figure 3 at 45 (the flask handling area) 46 (the transfer stations) and 47 (the pouring and cooling area) .
  • the parting line 21, i.e., the parting line flange surfaces of one or both of the cope 19 and drag 20 shown in Figure 2 is represented by a solid line 48.
  • the upper end of the mold having the pouring cavity 39 is represented by the line 49 interrupted by three dots in Figure 3.
  • the line 51 interrupted by single dots in Figure 3 represents the top of the pallet by which the flasks are conveyed in the second loop 44.
  • the combination of the parting line 48 and a lower dash 52 represents the path of conveyance of each drag 20.
  • the depiction of parting line 48 with an upper dash 53 indicates the conveyance of each cope 19.
  • Two dashes on either side of a line, such as shown in 54, indicate a clamped cope and drag, forming a flask or mold.
  • the symbols 54,54 / for a flask indicate either the horizontal or vertical orientation of the flask, respectively, depending on its location in the production line 42.
  • Identifier 55 indicates a transfer station at which a horizontally oriented flask on the first loop 43 is rolled up and transferred to a pallet conveyed along the second loop 44.
  • 56 indicates another transfer station, at which a vertically oriented mold which has completed the cooling cycle, is then rolled down and transferred from the second loop 44 to the first loop 43.
  • the pouring ladle is indicated by a circle at 11.
  • both loops 43,44 could run at the same speed and the length of the portion of the second loop 44 in the cooling area 47 would be dictated simply by multiplying the speed of the line by the duration of the desired cooling period.
  • the required floor space would be enormous.
  • a feature of the present invention is the ability to maintain the conveyance rate of the first loop 43 at normal for high production, i.e. at the working capacity of the mold making and handling equipment, while reducing the total length and average speed of the second loop 44 relative to that which would normally be required to keep up with the flask handling capacity of the first loop.
  • the average speed of the second loop can be less than one-half the average speed of the first loop. This is accomplished by arranging a plurality of molds, preferably three, on a single pallet so that the three molds can be handled as a set 13, as depicted in Figure 1.
  • the throughput of the second loop 44 matches that of the first loop 43, because a mold set 13 containing multiple molds is handled as a unit in the second loop, whereas the flask components are handled individually, as is conventional, in the first loop.
  • Figure 4a shows the flask handling area 45 and includes conventional equipment except as otherwise indicated.
  • a drag mold lift-off may be assumed to begin the cycle for a given one of a plurality, typically foUr to five hundred, flasks that would be continuously conveyed along the first and second loops in the preferred embodiment of the invention.
  • Mold punch-up and plow-off equipment is provided at 102, followed by a drag roll-over at 103 and a drag roll-on conveyor with rotary parting line brush at 104.
  • a drag molding machine such as the SPOMATIC Model 400-HSS, is provided at 105, followed by a drag roll-off conveyor 106 and a second drag roll-over at 107.
  • the drag 20 passes through a right angle transfer at 108 and is placed on drag transfer conveyor 109 which conveys each drag toward the ladle 11 at the pouring station (see Figures 3 and 4b) .
  • a separator 110 detaches the cope portion 19 of a cooled mold from the drag 20, and feeds a cope mold punch-out machine 111.
  • a cope roll-on conveyor with rotary parting line brush is provided at 112, followed by a cope molding machine 113 such as the SPOMATIC Model 400-HSS.
  • the cope travels along cope roll-off conveyor 114 to the cope 90 degree tip-up inspection station
  • the mold is further conveyed via mold right angle transfer 119 to roll-out conveyor 120.
  • Each cope, drag and mold has, throughout the previously described path, remained horizontally oriented.
  • the mold roll-up and pallet loader 121 of transfer station 55 the mold is re-oriented vertically and placed side-by-side with one and preferably two other vertically oriented molds, onto a pallet conveyor 122.
  • the pallet is loaded so that, after the right angle transfer at 123 preparatory to entering the pouring area 11 ( Figure 4c) , a cope 19 is in the leading or upstream position, and a drag 20 is in the trailing or downstream position.
  • pallet indexer 124 is actuated to assist, along with subsequent indexes, in the proper handling of a given pallet.
  • the pallet is conveyed along pallet roller conveyor 125 adjacent to ladle 11 whereby the molten metal is poured through pouring cavity 39 at the upper end of the mold. Cooling starts immediately after the mold is full.
  • the pallet with filled mold set 13 encounters a pallet stop 126, where it is indexed at 128 and angularly transferred at 127.
  • Each pallet is transported along rail conveyors 129,131 and then placed in one of a plurality of pallet rail cooling conveyors 136, 137, 138 and 139, according to indexers 132, 133, 134 and 135.
  • An additional pallet indexer 145 is located at the feed for pallet rail conveyor 146. At pallet stop 147, each pallet is indexed 149 and redirected at right angle 148 along pallet roller conveyor 150 to stop 151 ( Figure 4b) .
  • the pallet is further conveyed, possibly including handling by pallet transfer car 152, along pallet indexer 153 and roller conveyor 154 to pallet stop 155 at the second transfer station 56, where it is indexed at 158.
  • pallet stop 155 the pallet is unloaded and the mold set is rolled down and tilted 90 degrees at 157. Each mold is lifted and thus separated from the set for subsequent individual handling.
  • the pallet undergoes a right angle transfer 156 to pallet rail conveyor 122 toward transfer station 55, where the pallet will be loaded with another flask set 13.
  • Figures 5-8 show additional detail on the preferred embodiment of the cope and drag.
  • a flask 15 is shown in a horizontal orientation with the cope 19 clamped to the drag 20.
  • Structural elements of numeric identifiers in Figures 5-8 correspond to the numeric identifiers in Figures 1 and 2.
  • the cope carries in each opposed side wall 24, a pair of clamp or hook members 57 adapted to pivot around pivot point 58, substantially in parallel with the side walls.
  • a stop 59 is provided in the cope side wall 24 for retaining each clamp 57 in the open position.
  • a pair of clamp or latch bars 61 is provided in each side wall 36 of the drag 20, for lockingly engaging the curved portion of clamp 57.
  • the pivot point 58 includes a knob, boss or similar structure which can be engaged by clamping and unclamping equipment such as provided at 118 and 160 in Figure 4a.
  • a registration bar 62 is provided in the drag end wall 36 for registry with a recess 63 in the cope lower end wall 26. Similar registry means are provided in one or both side walls, such as bars 64,66 and recesses 65,67.
  • the mold or flask 15 is re-oriented from the horizontal to the vertical position for loading on the pallet.
  • the orientation of the flask 15 in Figure 5 is from the point of view of looking down the roll-out conveyor 120 from the right angle transfer 119, toward the mold roll-up and pallet loader 121.
  • the roll-up of the flask depicted in Figure 5 would thus be counter-clockwise, with the ends 25,32 moving upward and to the left along a wide arc, whereas the lower end 34 of the drag 20 would rotate counter-clockwise in a-very small arc. This tilting and subsequent lift-off will be described below with reference to Figures 9 and 10.
  • a lift bar 68 and associated jaw alignment pin 69 are provided on each side wall 36 of the drag, within the channel of the drag defined by the flanges 37 and 29.
  • jaws may grasp the drag 20 and lift the flask 15 for placement on a pallet.
  • the orientation and actuation of the clamp 57 is such that the lifting of the drag 20 vertically displaces the clamp bars 61 further into the curved portion of clamps 57, with the weight of the cope 19 being transferred through the clamps 57 to the clamp bars 61.
  • the full weight is not transferred, but rather is borne primarily by the interaction of the registration bars 62, 64 and 66 , with the respective registration recesses 63, 65 and 67.
  • One or more side walls 36 of the drag 20 may also carry an alignment pin 71 which extends outside the channel and mates with a recess or other structure associated with the pallet, for assuring the proper arrangement of the flasks 15 on the pallet. This will be further discussed with respect to Figures 9 and 10.
  • the pouring cavity 39 be centered symmetrically with respect to the pouring ends 25 and 32 of the cope and drag.
  • the parting line 21 passes through the pouring cavity 39, but the cavity may be located closer to one side wall or the other, particularly where each flask is sized to define an odd number, for example three, crank shafts to be formed from a single pour as is shown in Figure 12.
  • Figures 9 and 10 show two views of the mold tip-up and pallet loader 121.
  • the clamped flask or mold 15A is conveyed by the conveyor 120 onto roller wheels 162 of the tip-up platform 163.
  • the tip-up platform is supported by an arched transfer frame 165 including four vertically oriented stanchions 166 and horizontally oriented base 167 and cross beam 168.
  • the tip-up platform 163 is horizontally oriented and rigidly connected to a vertically oriented support wing 169 which in turn is pivotally connected at 171 near the lower end of the first stanchion 166'.
  • a tip-up piston cylinder 172 is pivotally connected at one end 173 to the tip-up platform 163 and at the other end 174 to the cross beam 168, whereby the tip-up platform may be pivoted clockwise 90 degrees, from the nine o'clock position to the twelve o'clock position. This tilts the mold 15A from a horizontal to a vertical orientation, as shown at 15A and 15B.
  • the vertical tilting maintains the cope 19B in a relatively upstream position with respect to conveyance of the flask toward the pouring ladle.
  • the flask in the vertical position as shown in 15B is initially supported by the wing 169 until the lift jaws 175 grasp the lift bars 68 on the flask 15B, and carry the flask to the right, immediately over the pallet 176.
  • the flask in the position shown at 15B need change elevation by only about two inches, as implemented by the mold lift actuator 179.
  • the lift bar 68 may be augmented by the bar 69 which registered with a recess 181 in the jaw pads 182 to properly orient and retain the pad relative to the lift bar 68.
  • the pallet carries a bracket 177 having one or more recesses 178 adapted to receive the alignment pin 71 on the flask.
  • the first flask 15C to be loaded on the pallet is carried to the right until the alignment pin 71 is immediately above the recess and then the flask is lowered onto the pallet, whereby the alignment pin and recess register.
  • the cross beam 168 and transfer rail 183, as well as the mold lifting actuator 179, are conventional.
  • the lift jaws shown in Figure 10 are particularly adapted to operate on the flask of the present invention.
  • the lift bars 68 are within the envelopes of the flanges 23, 27, 29 and 37, so that the jaw pads 182 are adapted to enter the channels between flanges in order to grasp the lift bars 68.
  • the pallet is preferably loaded with three flasks or molds, forming a mold set 13 which is subsequently handled as a unitary arrangement throughout the second loop 44.
  • the pallet 176 in a conventional manner, has wheels 184 which roll on a pallet track 185, represented by pallet rail conveyor 122 in Figure 4b.
  • tip-up and pallet loading sequence shown in Figures 9 and 10 could be implemented using equipment different from that described herein, so long as the essential features of receiving the mold 15A in the horizontal position, tipping the mold 15B • vertically so that the pouring cavity 39 is vertically at the upper end of the flask, and conveying the vertically oriented mold 15C to the pouring station, preferably in sets, is accomplished.
  • Figure 11 shows one possible arrangement for the station 56, in perspective such that the cured mold sets 13 are coming toward the viewer from the cooling area along conveyor 154, while oriented vertically.
  • a first jaws mechanism 186 lifts the front mold 15D from the pallet 176 and places it vertically in a generally L-shaped tip down mechansim 187, which is similar to the tip-up platform 163 and support wing 169 shown in Figure 9.
  • the mold 15D is tilted 90 degrees backward, whereby the mold becomes horizontally oriented as shown in phantom.
  • a second jaws mechanism 188 preferably having two pair 189,190 of opposed jaws, lifts the mold 15D and places it on the conveyor 159 of the first loop.
  • the jaws 189,190 are sized so that they enter the channel 72 defined between the parting line flange 37 and the outer flange 29 of the drag portion of each mold.
  • the pouring cavity 39 of each mold when in the horizontal position, is on the downstream side of the mold, and the drag portion of each mold is below the cope portion 19. In this manner, each mold set 13 is individually handled to avoid stacking the molds one on top of the other while horizontal. After a given pallet 176 has been unloaded, it is redirected along conveyor 122 toward station 55.
  • both the tip-up and loading equipment 121 and the tip-down and unloading equipment 157 could be constructed so that the receiving and the discharge directions differ from those shown in Figures 4b, 9, 10 and 11.
  • Figure 4b it is clear that the molds approach station 55 in a direction from top to bottom on the drawing, and that after transfer to the pallets, the flasks are conveyed from bottom to top until reaching the right angle transfer 23.
  • the pallets which pass through station 55 do not change direction along pallet rail conveyor 122.
  • the molds continue along a direction from right to left as they are removed from the pallet and tipped down, whereas the pallets move from right to left until they hit stop 155, then move from bottom to top along conveyor 122.
  • the precise path of the flasks, molds and pallets could be reversed as between the stations 55 and 56.
  • other arrangements are possible.
  • the particular equipment and the timing would perhaps be more complex than that described herein with respect to the preferred embodiment, but nevertheless the fundamental features of the invention could thus be differently implemented.
  • Figure 12 illustrates the desirability of forming a plurality of crank shafts in a given mold or flask.
  • the rectangular line 73 indicates the border of the opening defined by the side walls and end walls of the cope or drag.
  • the dashed line 74 at the upper portion of the drawing indicates the extent of the associated parting line flange, and the pouring cavity 39 formed therein.
  • the sprue 75 and associated filling channel 76 define a conduit that extends to the lower portion of the vertically oriented flask, where the molten metal is deposited in a manifold 77 or the like from which it enters each vertically oriented crank shaft mold cavity 78,79,81 from the bottom.
  • Each crank shaft mold cavity is elongated and has a longitudinal axis, which is vertically oriented within the flask. The force of gravity on the column of metal in the sprue and channel push the molten metal up through each cavity until the cavity is filled and maintains pressure thereon during cooling.
  • a significant advantage of the present invention is that, during cooling, the impurities in the molten metal rise to a removable bulb or the like 82 at the top of each cavity and, thus, migrate away from the lobes 83 and other lateral formations on the cam shafts.
  • each cope and drag would have internal dimensions, of about 32x44x10 inches, and the rectangular dimension defined by the flanges would be about 42x54 inches.
  • the method and apparatus described above simultaneously achieves the advantages of high production and low cost associated with pressure molding, with the metallurgical advantages associated with vertical pouring and long in-mold curing time.

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  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)

Abstract

La méthode décrite consiste à réunir un dessus (19) et un dessous (20) pour former un châssis de moule (15) ayant un plan de joint horizontal (21) passant par une cavité de coulée (39) dans le châssis, à incliner le châssis de façon que le plan de joint soit vertical et que la cavité de coulée se trouve au sommet du moule dans ladite position verticale. Alors que le châssis se trouve dans cette position verticale, on fait couler du métal fondu par la cavité de coulée pour remplir le moule. Une fois rempli, chaque moule est maintenu dans une position verticale jusqu'à ce que le métal fondu se soit refroidi. Après refroidissement du métal, le moule est à nouveau incliné jusqu'à ce que le plan de joint se trouve en position horizontale, après quoi le dessus est détaché du dessous et la pièce coulée est démoulée. De préférence, l'on place au moins deux moules sur une seule palette, les plans de joints étant orientés à la verticale. Le dessous utilisé de préférence comporte un rebord externe (29) et un rebord de ligne de joint (37), et le dessus comporte un rebord externe (23) et un rebord de ligne de joint (27). La ligne de joint du dessous et celle du dessus sont dotées respectivement d'encoches (38, 28) pour délimiter la cavité de coulée.
PCT/US1991/000711 1990-02-16 1991-02-01 Methode de moulage a coulee verticale WO1991012104A1 (fr)

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US480,806 1990-02-16

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878252A1 (fr) * 1997-05-14 1998-11-18 Heinrich Wagner Sinto Maschinenfabrik GmbH Moule pour installation de moulage automatic et procédé de fabrication d'un tel moule
EP0878258A1 (fr) * 1997-05-14 1998-11-18 Heinrich Wagner Sinto Maschinenfabrik GmbH Installation de moulage
EP1072341A1 (fr) * 1999-07-29 2001-01-31 Heinrich Wagner Sinto Maschinenfabrik GmbH Dispositif de coulée pour une installation de fonderie
US6540007B2 (en) 1998-03-10 2003-04-01 Montupet S.A. Molding process for the mass production of aluminum alloy castings and associated items of equipment
CN104125869A (zh) * 2011-12-22 2014-10-29 Tecnalia研究与创新基金 模制方法、用于实现所述方法的设备和通过所述方法获得的模具

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US4186793A (en) * 1978-03-17 1980-02-05 Antonov Vladimir A Automatic line for coated metal mould casting
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GB2189417A (en) * 1986-04-18 1987-10-28 Nii Tekh Avtomobil Promy Automated line for production of castings
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Publication number Priority date Publication date Assignee Title
DE2652657A1 (de) * 1975-11-21 1977-06-02 John Workman Giesserei-formvorrichtung
US4186793A (en) * 1978-03-17 1980-02-05 Antonov Vladimir A Automatic line for coated metal mould casting
SU993093A1 (ru) * 1981-10-08 1983-01-30 Государственный проектно-конструкторский институт рыбопромыслового флота Установка дл испытани объектов,работающих в услови х качки
GB2189417A (en) * 1986-04-18 1987-10-28 Nii Tekh Avtomobil Promy Automated line for production of castings
WO1989007501A1 (fr) * 1988-02-09 1989-08-24 Triplex Alloys Limited Appareil et procede de coulage

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Title
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World Patent Index, File Supplier, abstract AN 85-151349/25, Derwent Publications Ltd, (London, GB); & SU-A-993093 (VINNITSE POLY) 30 November 1984 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878252A1 (fr) * 1997-05-14 1998-11-18 Heinrich Wagner Sinto Maschinenfabrik GmbH Moule pour installation de moulage automatic et procédé de fabrication d'un tel moule
EP0878258A1 (fr) * 1997-05-14 1998-11-18 Heinrich Wagner Sinto Maschinenfabrik GmbH Installation de moulage
US6244328B1 (en) 1997-05-14 2001-06-12 Heinrich Wagner Sinto Maschinenfabrik Gmbh Mold for automatically working mold systems and a process for the manufacture of the molds
US6540007B2 (en) 1998-03-10 2003-04-01 Montupet S.A. Molding process for the mass production of aluminum alloy castings and associated items of equipment
EP1072341A1 (fr) * 1999-07-29 2001-01-31 Heinrich Wagner Sinto Maschinenfabrik GmbH Dispositif de coulée pour une installation de fonderie
TR200002194A3 (tr) * 1999-07-29 2001-03-21 Heinrich Wagner Sinto Maschinenfabrik Gmbh Dökümhane kaliplama sistemi için bir döküm cihazi
TR200002194A2 (tr) * 1999-07-29 2001-03-21 Heinrich Wagner Sinto Maschinenfabrik Gmbh Dökümhane kalıplama sistemi için bir döküm cihazı
CN104125869A (zh) * 2011-12-22 2014-10-29 Tecnalia研究与创新基金 模制方法、用于实现所述方法的设备和通过所述方法获得的模具

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