EP2701866B1 - Giesskolben und giesseinheit mit absperrventil - Google Patents

Giesskolben und giesseinheit mit absperrventil Download PDF

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Publication number
EP2701866B1
EP2701866B1 EP12706559.7A EP12706559A EP2701866B1 EP 2701866 B1 EP2701866 B1 EP 2701866B1 EP 12706559 A EP12706559 A EP 12706559A EP 2701866 B1 EP2701866 B1 EP 2701866B1
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EP
European Patent Office
Prior art keywords
valve
casting
plunger
riser
shut
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.)
Active
Application number
EP12706559.7A
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German (de)
English (en)
French (fr)
Other versions
EP2701866A1 (de
Inventor
Ronny Aspacher
Erich Kuhn
Norbert Erhard
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.)
Oskar Frech GmbH and Co KG
Original Assignee
Oskar Frech GmbH and Co KG
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 Oskar Frech GmbH and Co KG filed Critical Oskar Frech GmbH and Co KG
Priority to SI201231529T priority Critical patent/SI2701866T1/sl
Priority to PL12706559T priority patent/PL2701866T3/pl
Publication of EP2701866A1 publication Critical patent/EP2701866A1/de
Application granted granted Critical
Publication of EP2701866B1 publication Critical patent/EP2701866B1/de
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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
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
    • B22D17/04—Plunger machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/203—Injection pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations
    • B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations
    • B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
    • B22D39/023—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume using a displacement member

Definitions

  • the invention relates to a casting piston with integrated shut-off valve and to a pouring container having a pouring unit for a casting machine, such as a hot-chamber die casting machine, wherein the casting unit axially movable in a casting cylinder of the casting container arranged casting piston and / or a riser shut-off valve in a riser of the casting container.
  • the casting piston check valve serves to release a flow of melt material through the casting piston during a melt suction operation in an open position and to block it during a mold filling operation in a closed position.
  • the riser gate valve serves to block melt flow during a melt suction operation in a closed position and release it during a mold filling operation in an open position.
  • the patent EP 1 201 335 B1 discloses such a casting unit, wherein a conventional check valve is proposed for both the casting piston shut-off valve and the riser shut-off valve.
  • the non-return valve integrated in the casting piston opens during the retraction movement the casting plunger during a Schmelzeansaugvorgangs and thus enables a Nachspeisung of melt material through the casting piston into a casting chamber, which is formed by the casting cylinder itself or an additional cavity in the casting, while closing the mold filling process, so that by the advancing movement of the casting piston melt material from the casting chamber can be pressed over the riser into a mold without flowing back through the casting piston.
  • the check valve in the riser opens during the mold filling operation so that melt material can pass from the casting chamber via the riser channel into the mold and closes during the melt aspiration process, allowing melt backflow from the riser channel into the casting chamber due to negative pressure and / or the melt own weight in the riser is prevented.
  • the publication DE 10 2009 012 636 A1 discloses a pouring unit including a pouring vessel for a hot chamber die casting machine which incorporates a special type of ball valve check valve disposed at the bottom of a riser channel of the pouring vessel.
  • the ball valve includes as a movable valve body cooperating with a corresponding valve seat valve ball made of a material with respect to a melt material used higher specific gravity, in particular of a hard metal material. Upwards, the movement of the valve ball is limited by a retention pin inserted into the riser.
  • the inner diameter of the riser is chosen to be significantly larger than the diameter of the valve ball, so that the melt material around the valve ball in the riser can be conveyed upwards when the ball valve is in its open position, in which the valve ball by the delivery pressure of the melt material lifts off from her valve seat.
  • piston rings in the piston ring grooves of the casting piston are introduced so as to form so that they completely seal axially only in the pressing pressure direction, while they do not completely seal during the Schmelzeansaugvorgang against the negative pressure in the Gellohunt established and thus allow escape of any melt material residues between casting and casting cylinder.
  • the patent BE 351 505 A shows a metal melt pump in which a piston can be moved axially by means of a piston rod with a screw in a cylinder.
  • the piston and the screw form a check valve with adjustable stroke in the cylinder.
  • a molten metal casting apparatus in which a pump can convey molten metal from a smelting furnace into a cylinder and from there into a molten metal conduit.
  • a valve arrangement opens or blocks the connection between the cylinder and the metal melt piping in a step-dependent manner.
  • the invention is based on the technical problem of providing a casting piston and a casting unit of the type mentioned, which are structurally and / or functionally improved compared to the above-mentioned conventional casting piston and casting units, in particular with regard to the casting piston shut-off valve and / or the riser shut-off valve.
  • the invention solves this problem by providing a casting piston having the features of claim 1 and a casting unit having the features of claim 6 or 7.
  • the casting piston of claim 1 comprises a piston sleeve bearing against an inner wall of a casting cylinder of the casting unit and including a valve seat of the casting piston check valve and a piston ram including a valve body cooperating with the valve seat, the piston sleeve and piston ram being presettable Valve lift against each other are axially movable.
  • the piston plunger has a first plunger part, which includes the valve body, and a second plunger part, which is arranged on the first plunger part and which includes a piston sleeve driver stop. Furthermore, the second plunger part includes a disc or cylinder body which is provided with a plurality of axial melt passage openings and on which the Kolbenhülsenmit mecanicanschlag can be formed.
  • This characteristic implementation of the G tellkolben-check valve allows a defined closing and opening of this valve by the predetermined valve lift using the necessary for the Schmelzeansaugvor réelle and Formglallvor réelle movement of the casting piston.
  • the piston sleeve of the movement of the piston plunger which is driven for this purpose in a conventional manner, for example by means of a piston rod to the corresponding axial forward and backward movement, be taken while leaving the defined valve clearance.
  • valve lift for the integrated shut-off valve is variably adjustable.
  • different circumstances are taken into account, for example, to ensure that depending on the used melting material and depending on the structural design and dimensioning or geometry of casting cylinder and casting piston always enough melted material can pass through the casting piston.
  • the second plunger part with variably adjustable axial distance of Kolbenhülsenmit aloneanschlags from the valve body on the first plunger part can be fastened, whereby the valve lift is variably adjustable accordingly.
  • the casting unit according to claim 6 is equipped with a casting piston according to the invention.
  • the pouring unit according to claim 7 has in particular a riser shut-off valve with a valve body which is axially movably inserted into the riser channel and is supported against a riser channel inner wall, wherein it includes a running between opposite axial end sides channel structure for the axial passage of melt material, one of both axial end sides of the valve body cooperates with a valve seat of the shut-off valve.
  • the valve body is cylindrical, and the valve seat facing away from the axial end side of the valve body terminates with an end stop ring, which defines an axial mouth opening of the channel structure and Ventilhubbegrenzend cooperates with a corresponding annular shoulder of the riser channel inner wall.
  • the riser shut-off valve thus realized allows the passage of melt material through the valve body itself, which avoids any disadvantages that may occur in a forced flow around a non-flow-through valve body, such as a solid valve ball.
  • a non-flow-through valve body such as a solid valve ball.
  • the riser shut-off valve can be significantly improved by this realization of the riser shut-off valve, the pressure conditions on this valve and thereby its intended functionality, especially even with a passive valve design.
  • the characteristic valve body design allows a significant improvement in valve performance due to minimized backpressure of melt material over the valve in the riser duct.
  • a conventional check valve with ball valve body in which as a result of pressure equalization of the bottom and top of the valve ball forces forces the valve ball sinks to its valve seat and the valve closes, when at the end of a Formyogllvorgangs no larger volume of melt material through the valve flows, the present valve can still be kept open in this situation by the melt pressure force to promote a small volume of melt, as for the material compaction in the mold during the solidification phase at the end of Formglallvorgangs may be desired. Only when pressure relief then closes the thus realized riser shut-off valve.
  • a diameter of the axial mouth opening is at least about as large as a riser channel diameter reduced by the annular shoulder. This measure favors the above-mentioned functionality, the riser shut-off valve by the melt pressure even then to keep open when no or only a very small volume of melt material flows.
  • the channel structure of the valve body of the riser shut-off valve has a plurality of axial, distributed on the outer circumference of the valve body arranged channel slots extending from the valve seat facing axial end side of the valve body and terminate at a distance from the end stop ring and there via a respective radial passage opening with the axial mouth opening are in communication.
  • This channel structure can be realized with relatively little construction effort and favors the flow behavior of the valve body with melt material as well as the mentioned valve behavior with respect to opening under pressure, even with at most low flow of melt material.
  • the casting piston shut-off valve and / or the riser shut-off valve is designed as a passively operating check valve or alternatively as an actively controllable valve, which may in particular be a pneumatically, hydraulically, electromechanically or electromagnetically controllable valve.
  • the in the Fig. 1 and 2 Casting unit shown is of a customary for use in a hot-chamber die casting machine structure a casting container 1, in which a casting cylinder 2 is located.
  • a casting piston 3 is axially movable back and forth.
  • the casting container 1 a riser channel 4, which extends from a bottom-side lateral opening 5 of the casting cylinder 2 up to a rising channel 6, to which in a conventional, not shown manner leading to a mold mouthpiece or a corresponding mouthpiece nozzle connects.
  • the casting piston 3 has a special casting piston shut-off valve 7 integrated in it, and a special rising-channel shut-off valve 8 is introduced into the rising channel 4.
  • the casting piston 3 for realizing the integrated shut-off valve 7 has a special construction with a piston sleeve 9 which sealingly abuts against an inner wall 10 of the casting cylinder 2 and includes a valve seat 11, and with a piston plunger 12 which includes a valve body 13.
  • valve seat 11 and valve body 13 are hereby arbitrary and intended only to distinguishable designation of these two valve elements, which form the actual shut-off valve 7 and are axially movable relative to each other between an open position and a closed position.
  • a line contact contact in the closed position typically along a circular line provided.
  • the piston plunger 12 has a first plunger part 12a, which forms the valve body 13 at the axial end face, and a second plunger part 12b fastened to the first plunger part 12a, for example by means of a screw connection, on which a piston sleeve driver stop 74 is formed.
  • the first plunger part 12a may be integrally formed with an associated piston rod 14 or, as in FIG the 3 and 4 shown to be fixed to this example by means of a screw thread.
  • the Kolbenhülsenmit nutritionanschlag 74 cooperates with a corresponding counter-stop 15 which is formed on the piston sleeve 9, so that during the retraction movement, the piston sleeve 9 is taken from the second plunger part 12b. In the reverse feed movement, the piston sleeve 9 is taken over the valve closing contact of valve seat 11 and valve body 13 from the first plunger part 12a.
  • the second plunger part 12b has a plurality of axial melt passage openings 16 through which melt material which has passed the valve gap between the valve seat 11 and the valve body 13 when the valve 7 is open is forwarded to the subsequent free space of the casting cylinder 2 acting as the casting chamber 17.
  • melt passage openings 16 in the circumferential direction distributed equidistantly provided, especially through a disk or cylinder body 18 formed by this.
  • the functionality of the G cordkolben-check valve 7 can be seen from the two Ventilendpositionen, as in the Fig. 1 to 4 are shown.
  • the Fig. 1 and 3 show the valve 7 during a Schmelzeansaugvorgangs in which the casting piston 3 is retracted by the piston rod 14 to melt from a conventional, not shown here melting pot or melt bath in the casting cylinder 2 behind the casting piston 3 and through the casting piston 3 into the casting chamber 17 to suck.
  • the retraction movement of the piston rod 14 first causes the shut-off valve 7 is opened when it was previously closed by the piston rod 14, the piston plunger 12 and thus retracts the valve body 13, while the piston sleeve 9 still remains stationary due to their pressing and sealing abutment against the casting cylinder inner wall 10.
  • the Fig. 2 and 4 show the shut-off valve 7 in its closed position, as it is present during a mold filling operation, in which 3 forward melt material from the casting chamber 17 is pressed through the riser channel 4 in a mold by forward movement of the piston rod 14 and the casting.
  • the piston sleeve 9 which is tightly supported against the casting cylinder inner wall 10, initially remains at rest until the valve body 13 formed by the axial end face of the first plunger part 12 a has advanced toward the valve seat 11 on the piston sleeve 9, thereby closing the shut-off valve 7 Closed position occupies, in which it prevents a further flow of melt through the casting piston 3 into the casting chamber 17.
  • About the abutting contact of the first plunger part 12a against the valve seat 11 of the piston sleeve 9 then takes the piston plunger 12 in its advancing movement, the piston sleeve 9 with.
  • the valve lift H is variably adjustable by the second plunger part 12 b with variably adjustable distance of Kolbenhülsenmit predominantlyanschlags 74 to the first plunger part 12 a and the valve body 13 am first plunger part is fixable, for example by the second plunger part 12b is screwed more or less far into the first plunger part 12a.
  • a corresponding spacer ring 19 which is inserted between the two plunger parts 12a, 12b, it is possible to determine how far the second plunger part 12b can be screwed into the first plunger part 12a.
  • the spacer ring 19 contributes to a secure hold of the second plunger part 12b on the first plunger part 12a.
  • the dimensioning of the valve H as well as the design and dimensioning of the valve seat 11 and the corresponding valve body 13 can be selected so that an optimal flow behavior of flowing through the melt material is achieved, in particular a largely turbulence-free melt flow.
  • the riser-shut-off valve 8 includes a valve body 20 which is axially movably inserted into the riser channel 4 and is supported against an inner wall 21 of the riser channel 4.
  • the valve body 20 has a running between opposite axial end sides channel structure for the axial passage of melt material, wherein one in the Fig. 1 and 2 lower axial end face 22 is frusto-conical and cooperates with a valve seat 23 of the riser shut-off valve 8, which is formed by a mouth opening of a lower riser passage 24, which is preferably designed to optimize the flow path arcuate.
  • This arcuate riser passage portion 24 is realized in the example shown by a provided with a corresponding arcuate bore Umlenkstopfen 25, which is fitted into an associated receiving bore 26 of the pouring container 1, so that the arcuate riser passage 24 on the inlet side with the pouring chamber outlet opening 5 is aligned.
  • the valve seat 23 remote axial end side of the valve body 20 terminates with an end stop ring 27 from the valve stroke limiting cooperating with a corresponding annular shoulder 28 of the riser channel 21, ie when acting from below melt pressure moves the valve body 20 upwards until it comes with its stop ring 27 against the annular shoulder 28 of the riser channel 4 to the plant.
  • the stop ring 27 defines, ie surrounds, a central axial mouth opening 29, which forms an upper, exit-side part of the channel structure of the valve body 20. Furthermore, this channel structure includes, as in connection with the individual representations of Fig. 6 to 8 to recognize more, a plurality of axial, distributed on the outer circumference of the valve body arranged channel slots 30, in the example shown, these are four slots 30 which extend from the valve seat side axial end side of the valve body 20 to the end-side stop ring 27. There they open via a respective radial passage opening 31 of the channel structure in the central axial mouth opening 29th
  • the diameter of the mouth opening 29 is equal to or greater than the diameter of the riser channel 4 in its at the annular shoulder 28 upwardly subsequent section.
  • Fig. 1 again the position of the riser shut-off valve 8 during a Schmelzeansaugvorgangs.
  • the riser shut-off valve 8 remains in the closed position shown, in which it also lowers gravity, as soon as the melt material in the casting chamber 17 and the riser channel 4 is relieved of pressure after completion of mold filling.
  • valve body 20 of the riser shut-off valve 8 raises in its open position due to the melt pressure in the casting chamber 17 and the subsequent riser passage portion 24 Fig. 2 from, in which the valve body 20 rests with its upper stop ring 27 against the riser channel shoulder 28.
  • melt material via the mentioned channel structure, ie the axial slots 30, the radial passage openings 31 and the central axial mouth opening 29, through the valve body 20 pass through in the riser channel 4 upwards and are pressed from there in the usual way in a mold.
  • this riser valve 8 also allows a slight flow of melt during the solidification phase toward the end of the mold filling operation, as is desired, for example, in metal die casting for densifying the metallic melt material in the mold. In this period of the mold filling process, only the smallest melt volumes are conveyed, which no longer produce any significant flow forces.
  • a conventional one Ball valve would close here already, which is avoided by the present riser shut-off valve. Only when pressure relief after completion of the mold filling process, the valve body 20 lowers gravity due to the valve seat 23, whereby the riser shut-off valve 8 closes and prevents backward flow of melt in the riser channel 4 down into the casting chamber 17.
  • the valve body 20 has a cylindrical shape. As a result, it can be supported against the riser channel inner wall 21 over a relatively large axial length, which reliably avoids undesired or dangling movements or canting of the valve body 20 which endanger the function.
  • the channel structure 29, 30, 31 provides a defined flow through the valve body 20, whereby the flow behavior of the melt material in the riser channel 4 can be optimized or can be kept largely unhindered by arranging the shut-off valve.
  • other configurations of the valve body for the riser shut-off valve can be used as long as the valve body fulfills the described functionalities according to the invention. This also applies to alternative designs of the channel structure for the flow through this valve body with melt material to be conveyed.
  • Fig. 9 and 10 show an embodiment in which both valves are implemented as actively controllable valves, here exemplarily as pneumatically or hydraulically or electromotive controllable valve.
  • the invention also includes embodiments in which one of the two valves as a passively operating check valve and the other is designed as an actively controllable valve.
  • Fig. 9 and 10 which regarding the valve positions the Fig. 1 and 2, the same reference numerals for identical or functionally equivalent components used, to which reference can be made to the above explanations.
  • the casting unit shown there has a hydraulic or pneumatic control of the casting piston shut-off valve 7 and an electromotive control of the riser shut-off valve 8.
  • the valve body 20 for the riser shut-off valve 8 is the valve body 20 at its widened for this purpose upper stop ring 27 via a Control rod 40 coupled to a linear actuator 41.
  • the control rod 40 is performed by a corresponding feedthrough bore of the casting container 1 adjacent to the riser passage 4 and axially movable back and forth by the servomotor 41.
  • the valve body 20 can be actively set in its position in the riser channel 4, regardless of the gravitational forces and melt pressure forces mentioned above for the case of the passive valve design.
  • the valve positions desired in each case what has been said above for passive valve design applies analogously.
  • the active controllability of the riser shut-off valve 8 can be used inter alia, to flow melt material from the riser channel 4 in the casting chamber 17 if necessary, by the valve 8 is opened, and thereby at least partially emptying the riser channel 4, for example, for maintenance - or replacement work on the subsequent mouthpiece.
  • this functionality can be realized on request, for example, that is ensured by appropriate design of this valve 8 in terms of its tightness in the closed position that melt material over a defined stuntströmpfad with predeterminable, low reflux rate from the riser passage 4 via the valve 8 in its closed position to the casting chamber 17 can flow back.
  • a hydraulic or pneumatic control is shown, which is integrated in the piston rod 14 and the casting piston 3.
  • a pressure chamber 42 is introduced, which is divided by a pressure piston 43, wherein for each pressure chamber half an associated pressure medium channel 44, 45 is led out transversely out of the piston rod 14.
  • the pressure piston 43 is coupled to a control rod 46, which extends axially through the center of the piston rod 14 and the piston plunger 12 through to a G monkolbenboden 47, terminates in this embodiment, the extent modified piston sleeve 9.
  • the control rod 46 is e.g.
  • the two halves of the pressure chamber 42 suitable in usually with negative pressure or overpressure of the associated pressure medium, such as air, another gas or a fluid acted upon.
  • the plunger shut-off valve 7 can be actively moved between its open position and its closed position, in addition to or as an alternative to the valve actuating forces, as they occur in the above-explained passive valve design.
  • the invention also includes embodiments in which the casting piston shut-off valve according to the invention and the riser shut-off valve according to the invention are not both provided, but only a inventive casting piston shut-off valve or an inventive riser shut-off valve while the other valve is completely absent or replaced by a known conventional valve for this purpose.
  • the inventive Casting piston with integrated shut-off valve can also be used in place of a conventional casting piston in a casting unit, which has no or only a conventional shut-off valve in the riser or does not require such due to another structure.
  • only the riser valve according to the invention can be provided with simultaneous use of a conventional casting piston, for example, for applications in which the melt flow into the casting chamber is not through the casting piston, but in another way.
  • casting piston according to the invention and the casting unit according to the invention can be used not only in hot-chamber die casting machines but also in other types of casting machines which are to be equipped with a casting piston or casting unit of such functionality.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Magnetically Actuated Valves (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP12706559.7A 2011-04-27 2012-02-27 Giesskolben und giesseinheit mit absperrventil Active EP2701866B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201231529T SI2701866T1 (sl) 2011-04-27 2012-02-27 Livni bat in livna enota z zapornim ventilom
PL12706559T PL2701866T3 (pl) 2011-04-27 2012-02-27 Tłok odlewniczy i jednostka odlewnicza z zaworem odcinającym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011017610A DE102011017610B3 (de) 2011-04-27 2011-04-27 Gießkolben und Gießeinheit mit Absperrventil
PCT/EP2012/053288 WO2012146408A1 (de) 2011-04-27 2012-02-27 Giesskolben und giesseinheit mit absperrventil

Publications (2)

Publication Number Publication Date
EP2701866A1 EP2701866A1 (de) 2014-03-05
EP2701866B1 true EP2701866B1 (de) 2018-11-14

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ID=45774204

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EP12706559.7A Active EP2701866B1 (de) 2011-04-27 2012-02-27 Giesskolben und giesseinheit mit absperrventil

Country Status (17)

Country Link
US (1) US9505053B2 (tr)
EP (1) EP2701866B1 (tr)
JP (1) JP5878624B2 (tr)
KR (1) KR101962342B1 (tr)
CN (1) CN103596714B (tr)
BR (1) BR112013027599B1 (tr)
DE (1) DE102011017610B3 (tr)
DK (1) DK2701866T3 (tr)
ES (1) ES2708377T3 (tr)
HU (1) HUE042185T2 (tr)
MX (1) MX362093B (tr)
PL (1) PL2701866T3 (tr)
PT (1) PT2701866T (tr)
RU (1) RU2598069C2 (tr)
SI (1) SI2701866T1 (tr)
TR (1) TR201820511T4 (tr)
WO (1) WO2012146408A1 (tr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3919204A1 (de) 2020-06-04 2021-12-08 Oskar Frech GmbH + Co. KG Giesseinheit für eine druckgiessmaschine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012010923A1 (de) * 2012-06-04 2013-12-05 Gebr. Krallmann Gmbh Fördervorrichtung für eine Metallschmelze in einem Spritzdruckaggregat
DE102014018796A1 (de) * 2014-12-19 2016-06-23 Gebr. Krallmann Gmbh Fördervorrichtung für eine Metallschmelze in einem Spritzgussaggregat
DE102015224414A1 (de) * 2015-12-07 2017-06-08 Volkswagen Aktiengesellschaft Gusseinrichtung
AU2021200246A1 (en) * 2020-01-31 2021-08-19 Howmedica Osteonics Corp. Injection molding feedstock delivery system
DE102020207704A1 (de) 2020-06-22 2021-12-23 Oskar Frech Gmbh + Co. Kg Druckgießmaschine und Betriebsverfahren

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE351505A (tr) *
US5040589A (en) * 1989-02-10 1991-08-20 The Dow Chemical Company Method and apparatus for the injection molding of metal alloys
CA2008990A1 (en) * 1990-01-31 1991-07-31 George Sodderland Delivery means for conveying a fixed charge of molten metal to a mold cavity of a die-casting machine
US5401161A (en) * 1991-06-14 1995-03-28 Long; Michael C. Injection molding valve
JP2517509B2 (ja) * 1992-01-30 1996-07-24 日本軽金属株式会社 ホットチャンバ―ダイカストマシンの射出用プランジャ―
DE4419848C1 (de) 1994-06-07 1995-12-21 Frech Oskar Gmbh & Co Warmkammer-Druckgießmaschine
JP3179289B2 (ja) * 1994-07-22 2001-06-25 宇部興産株式会社 マグネシウム給湯装置
JP2000117417A (ja) * 1998-10-20 2000-04-25 Toshiba Mach Co Ltd 溶湯給湯ポンプ装置
JP3409154B2 (ja) * 1998-12-28 2003-05-26 株式会社日本製鋼所 金属射出成形機の逆流防止装置
DE19928770B8 (de) * 1999-02-19 2006-08-03 Krauss-Maffei Kunststofftechnik Gmbh Spritzgießmaschine
JP2001293553A (ja) * 2000-04-13 2001-10-23 Kubota Corp 金属溶湯の注湯装置
DE50012864D1 (de) * 2000-10-31 2006-07-06 Frech Oskar Gmbh & Co Einrichtung zur Herstellung von Metall-Druckgussteilen, insbesondere aus NE-Metallen
JP2002336947A (ja) 2001-05-14 2002-11-26 Minoru Kai 軽金属自動給湯装置
CA2463281C (en) 2004-04-05 2007-11-13 Husky Injection Molding Systems Ltd. Non-return valve for use in a molding system
US7291006B2 (en) * 2004-06-24 2007-11-06 Husky Injection Molding Systems Ltd. Check valve lip seal for an injection molding machine
DE102004051105A1 (de) * 2004-10-19 2006-04-27 Billion S.A. Plastifizier- und Einspritzvorrichtung
US7425126B2 (en) * 2006-05-17 2008-09-16 Husky Injection Molding Systems Ltd. Molding-system valve having knockdown retainer
DE102009012636A1 (de) * 2009-03-06 2010-09-09 Gerhard Schoch Gießbehälter für eine Warmkammer-Druckgießmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3919204A1 (de) 2020-06-04 2021-12-08 Oskar Frech GmbH + Co. KG Giesseinheit für eine druckgiessmaschine
DE102020207016A1 (de) 2020-06-04 2021-12-09 Oskar Frech Gmbh + Co. Kg Gießeinheit für eine Druckgießmaschine
US11376656B2 (en) 2020-06-04 2022-07-05 Oskar Frech Gmbh + Co. Kg Casting unit for a die casting machine

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US9505053B2 (en) 2016-11-29
MX2013012517A (es) 2014-02-03
US20140042193A1 (en) 2014-02-13
DK2701866T3 (en) 2019-03-04
TR201820511T4 (tr) 2019-01-21
PT2701866T (pt) 2019-02-21
JP2014512274A (ja) 2014-05-22
BR112013027599A2 (pt) 2017-02-14
DE102011017610B3 (de) 2012-06-21
PL2701866T3 (pl) 2019-06-28
KR20140021660A (ko) 2014-02-20
RU2598069C2 (ru) 2016-09-20
JP5878624B2 (ja) 2016-03-08
WO2012146408A1 (de) 2012-11-01
KR101962342B1 (ko) 2019-05-27
EP2701866A1 (de) 2014-03-05
CN103596714B (zh) 2016-09-21
BR112013027599B1 (pt) 2020-01-28
ES2708377T3 (es) 2019-04-09
HUE042185T2 (hu) 2019-06-28
RU2013151382A (ru) 2015-06-10
MX362093B (es) 2019-01-07
CN103596714A (zh) 2014-02-19
SI2701866T1 (sl) 2019-03-29

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