EP0931610B1 - Einrichtung zur Metallbeschickung waage-und senkrechter Kaltkammer-Druckgiessmaschinen und Verfahren - Google Patents
Einrichtung zur Metallbeschickung waage-und senkrechter Kaltkammer-Druckgiessmaschinen und Verfahren Download PDFInfo
- Publication number
- EP0931610B1 EP0931610B1 EP99101026A EP99101026A EP0931610B1 EP 0931610 B1 EP0931610 B1 EP 0931610B1 EP 99101026 A EP99101026 A EP 99101026A EP 99101026 A EP99101026 A EP 99101026A EP 0931610 B1 EP0931610 B1 EP 0931610B1
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- EP
- European Patent Office
- Prior art keywords
- pressure
- pressure chamber
- casting
- furnace
- melt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000002184 metal Substances 0.000 title claims description 37
- 238000004512 die casting Methods 0.000 title claims description 29
- 238000000034 method Methods 0.000 title claims description 11
- 230000008569 process Effects 0.000 title description 5
- 238000005266 casting Methods 0.000 claims description 59
- 239000000155 melt Substances 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 239000011261 inert gas Substances 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 14
- 238000012546 transfer Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000003958 fumigation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 208000002352 blister Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
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- 230000008018 melting Effects 0.000 description 1
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Images
Classifications
-
- 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
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
-
- 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
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
Definitions
- the invention relates to a device for metal loading horizontal and vertical cold chamber - Die casting machines and methods of the prerequisite in the preamble of claim 1 Art.
- the well-known cold chamber is used to manufacture die castings with high ductility - Die casting process, because of the air pockets as well as the melt contamination and the Gas absorption, due to the turbulent melt feed into the pressure chamber and the pressure chamber volume can only be filled to approx. 50%, not suitable. Also are heat treatments or coatings above 400 ° C without risk of blistering. Around to eliminate these disadvantages and the ever increasing demand for ductile, heat-treatable To do justice to castings comes the so-called "Vacural - Die Casting Process" increasingly used.
- the pressure chamber is charged by a Casting mold created vacuum, whereby a immersed in the melt of a stationary holding furnace Riser pipe fills the pressure chamber.
- the casting material is made available through the holding operation as well as the liquid metal feed of the holding furnaces arranged stationary on the die casting machines represents avoidable waste of resources.
- DE 196 13 668 C1 Metal supply and supply system in which a furnace functions by changing the cover fulfilled by casting and holding furnace as well as a transport container.
- the object of the invention is to demonstrate a device and its method in which the entire Casting process takes place in the absence of air. This is achieved: by a vertical or lateral arrangement of the casting furnaces to the pressure chamber, with one on the furnace cover over a housing attached pressure or suction line, the riser pipe in the casting furnace filled with melt - Immerses pressure vessel, with a movable connecting line and its actuating device the hermetic and intermittent connection to the pressure chamber is guaranteed. There is also a gassing piston between the pressure piston and its drive linkage, which forms a hermetic gassing ring channel with its guide bush. By appropriate gas pressure build-up above the melt surface in the casting furnace - pressure vessel or by building up a vacuum over the casting mold, the pressure chamber is filled with casting material.
- the melt delivery and the return delivery of the non-pourable residual melt takes place directly to and from the smelter.
- the casting furnace is retrofitted by changing the furnace lid into a liquid metal transport container, which can also be used for liquid metal buffering by heating is used.
- a free-floating plate into the melt surface.
- the connecting line is designed with an inclined separation surface so that at the start of the casting process a seal located in the interface and the continuous contact pressure by the Actuator on the connecting line, the linear expansion of the pressure chamber is compensated.
- Shrinkage of the pressure chamber on the movable connecting line are caused by a adjustable reset pulse from the die casting machine to the actuating device equalized the movable connecting line.
- the casting metal feed of the pressure chamber can do this by means of an inert gas pressure build-up above the melt surface in the pressure vessel or by creating a vacuum over the mold.
- the plunger presses the liquid metal into the mold, after the Pressure chamber - metal transfer opening through the retracting pressure piston, for gas pressure metal loading, the pressure above the melt surface in the pressure vessel is reduced and the am Pressurized piston jacket applied liquid metal column under suction of inert gas or by means of a corresponding inert gas pressure from the opening of the gassing flask is lowered into the pressure vessel.
- the metal is provided directly from Transport container delivered to the smelter, the liquid metal passing through in the transport container Heating can be buffered or immediately cast by changing the furnace lid. To minimize the metal movement, is in the delivery as well as in the residual quantity return of and a submerged free-floating plate to the smelting unit on the melt surface intended.
- the device designed according to the invention for feeding metal horizontally and vertically Die casting machines and their processes enable casting production with the exclusion of chemical ones Reactions and a gas absorption of the melt to be cast.
- the ductility significantly increased oxide bonds as well as those caused by oxides high abrasive wear excludes the service life of the pressure chamber, pressure piston as well the mold are increased, the casting scrap is reduced and minimizing production interruptions and repair expenses.
- the buffering of liquid metal in the transport containers, the delivery of liquid metal and the return of non-pourable liquid metal from and to the smelter, a holding operation as well as the metal supply of the Casting furnaces are no longer required on the die casting machines. This results in high savings regarding investment, personnel and repair costs.
- FIG.1 and Fig.2 Schematically in Fig.1 and Fig.2 shown horizontally - and vertical cold chamber - die casting machine 1,1a and 2,2a shows a mold 3,4, a 5,6 casting to be manufactured, the pressure chamber 8, the pressure chamber flange 9, the plunger 10, the gas injection piston 11 with the guide bush 12, the pressure - and suction line 16,28 to the movable connection pipe 46, the actuator 45, the G manefen 55, and immersed in the melt 62 of the pressure vessel 58 kiln riser pipe 59.
- the pressure or suction line 16 and the casting furnace 55 are arranged vertically below the pressure chamber 8 and the die casting machine 1, 1 a.
- the pressure die casting machine 2,2a is - or suction line 28 obliquely runs and installs the casting furnace 55 laterally of the pressure chamber 8 of the die casting machine 2,2a to the pressure chamber.
- the recesses in the fixed machine plates 1, 2 in the horizontal and vertical die casting machine 1, 1, 2, 2 guarantee the use of the previous pressure chamber dimensions.
- the variable executable in the spatial dimensions steel case 18,36 the pressure - g.Saug effet 16.28 is hereby all dimensional requirements of the casting machines - meet sizes and their different pressure chamber positions.
- the casting furnace 55 can be used on any cold chamber die casting machine.
- the pressure or suction line 16 is formed via a furnace riser 59 and a movable connecting line 46 .
- the centering and guiding of the movable connecting line 46 takes place here through the inner jacket of the furnace riser 59 '.
- the pressure or suction line 16 is locked and positioned via the steel housing 17 and the actuating device 45 .
- the steel housing 17 fastened vertically on the furnace cover 56 is formed by a spacer housing 18, a coupling 19, a sleeve 22, a bearing ring 23 and a bearing shell 24 .
- the position of the steel housing 17 is locked and fixed in place by a central collar 18a on the bottom surface of the spacer housing 18 and a recess 56a on the furnace cover 56.
- the sleeve 22 inserted into the cavity 18 ' of the spacer housing 18 is connected to the furnace cover opening 56 by a shoulder 22a ' positioned.
- Coupling 19 is centered and screwed to spacer housing 18 by a shoulder 20b in the bottom surface of clutch housing 20 and cover plate shoulder 21a .
- the furnace riser pipe 59 is fixed here via the openings in the furnace cover lining 57 ', the sleeve 22' and the bearing ring 23 ' .
- the shoulder 23b in the upper cover surface of the bearing ring 23 receives the furnace riser collar 59a .
- the furnace riser 59, the bearing shell 24 and the bearing ring 23 are locked via the bottom cover surface of the bearing shell 24 and the pressure acting on the collar 24a of the bearing shell 24 through the clutch cover plate 21 .
- the bearing shell 24 has on the upper end face a through opening 24 ', the offset from the collar 24a merging into a smaller aperture 24 ". In this case takes the large bearing shell opening 24' to the insulation jacket 47 of the connecting pipe 46 and, through the remaining free space the Movement of the connecting line 46 without interrupting its continuous heat insulation
- the time-controllable actuating device 45 of the connecting line 46 is connected and centered with the cover plate surface 21b of the coupling 19.
- the connecting line 46 is connected to the actuating device 45 by means of a claw 49.
- the sleeve 22 , the bearing ring 23, the bearing shell 24 and the shell 47 of the connection pipe 46 made of ceramic or fiber-ceramic materials. Thus, the heat-conducting parts are optimally protected against heat loss.
- the pressure chamber flange 9 inserted in the pressure chamber 8 via a shoulder 8a forms with de r mouth surface 46a of the connecting line 46 with the interposition of a seal 48 from an oblique, hermetic and intermittent connection.
- the pressure chamber flange 9 ' , the seal 48', the connecting line 46 ' and the spacer tube 37', the plug-in bearing 29 ' see FIG.
- the melt is between the pressure piston 10 and its drive rod 13
- a gas injection piston 11 is arranged with a guide sleeve 12 in this case, the connected to the pressure piston 10 gas injection piston 11 forms with the guide bush 12 by a shoulder 11a at the gas injection piston 11 has a hermetic Begasungsringkanal. 11 'in. in this case, the guide bush 12 is centrally connected to the end face 8b with the pressure chamber 8. via the channels 11' and 13 'is the Begasungsringkanal 11' connected to an inert gas source through the drive linkage 13.
- the pressure or suction line 28 is designed obliquely to the pressure chamber 8 due to the vertical pressure chamber 8 and the required metal lowering.
- the pressure or suction line 28 is formed by an oven riser pipe 59 , a plug-in bearing 29 , a spacer pipe 37 and a movable connecting line 46 .
- the pressure or suction line 28 is locked in its position by a coupling 30 fastened and centered on the furnace cover 60 , a coupling 39 positioned on the steel housing 36 , the actuating device 45 fastened on the coupling cover plate 41 and the steel housing 36 screwed onto the furnace cover 60 and fixed.
- the clutch 30 is formed by a housing 31, a cover plate 32, a disk 33, a bearing ring 34 and a bearing sleeve 35 .
- the coupling housing 31 is screwed and centered with the furnace cover 60 via a shoulder 60a and the collar 31a .
- the furnace cover opening 60 ' and the housing opening 31' receive the disk 33 .
- the cavity of the clutch housing 31 is formed by the bearing ring 34 and the bearing sleeve 35 .
- the furnace riser collar 59a receives the bearing ring 34 and the plug-in bearing collar 29a the bearing sleeve 35 .
- the cover plate 32 which is centered and connected to the coupling housing 31 via a shoulder 32a, locks the bearing sleeve 35, the bearing ring 34, the plug-in bearing 29 and the furnace riser pipe 59 through a shoulder 35a .
- the openings 57 ', 33', 34 ' and 35' are centered with respect to one another.
- the disc 33, the bearing ring 34 and the bearing sleeve 35 are made of ceramic or fiber-ceramic materials .
- the recessed opening 29 " in the plug-in bearing 29 which is made in the inclined position of the spacer tube 37 , receives the correspondingly spaced-apart spacer tube 37 flexible seal 38 compensates for the thermal changes in length of the spacer tube 37.
- the coupling 39 fastened on the end face to the steel housing 36 in the inclined position of the spacer tube 37 is formed by a housing 40, a cover plate 41, a bearing ring 23 and a bearing shell 24.
- the housing 40 here forms one in the steel housing 36 inwardly projecting collar 40a and a collar 40b projecting outwardly on the end face of the steel housing 36.
- Cover plate 41 and housing 40 are screwed and centered to steel housing 36 via opening 36a via a shoulder 41a Oven cover 60 fastened and fixed e steel housing 36 protects and insulates the plug-in bearing 29 and the spacer tube 37 from damage and greater heat losses.
- the cavity of the steel housing 36 is formed by the coupling 30, the plug-in bearing 29, the spacer tube 37 and the coupling 39 projecting into the housing cavity.
- the remaining cavity of the steel housing 36 is lined or filled with ceramic or fiber-ceramic materials 42 .
- the transport container 65 shown in FIG. 5 has a free-floating plate 66 immersed in the melt surface, the depth of immersion in the melt 62 being determined via the melt buoyancy and the plate weight.
- the plate 66 consisting of metallic materials is designed with a ceramic or fiber-ceramic sheath 66a .
- the dash-dotted representation shows the non-castable residual melt 62a with the plate 66 immersed in the melt. It should also be pointed out that structural details can be designed quite differently from the exemplary embodiment shown, without leaving the content of the claims.
- the device for metal loading of horizontal and vertical cold chamber die casting machines works as follows:
- the connecting line 46 is hermetically pressed with the opening surface 46a by means of an actuating device 45, under a continuous pressure, to the metal transition surface of the pressure chamber flange 9
- Control of the die casting machine is done by feeding the pressure into the pressure chamber 8 ' by building up an inert gas pressure over the melt surface 61 in the pressure vessel 58 or by creating a vacuum 7 via the casting mold 3, 4.
- the liquid metal is' 46 ',' 9 ', supported 62 at the horizontal die casting machine 1,1a via the openings 59 48 8 "in the pressure chamber 8' of the pressure chamber.
- the thermal change in length of the pressure chamber 8 at the start of the casting process is hermetically compensated for by the inclined separating surface of the connecting line 46 and the pressure chamber flange 9 with the interposition of a seal 48 and the pressure continuously acting on the connecting line 46 via the actuating device 45 .
- the connecting line 46 is reset from the pressure chamber flange transition surface by an adjustable, time-controlled pulse from the die casting machine 1, 1, 2, 2 a to the actuating device 45 ,
- the casting metal is provided and buffered via heatable transport containers 65 supplied by the smelter , which can be inserted directly into the metal loading position of the horizontal and vertical cold chamber die casting machines 1.1a, 2.2a by changing the furnace lid .
- the non-pourable residual melt 62a in the casting furnace 55 is returned to the melting plant as a transport container 65 by changing the furnace lid.
- a free-floating plate 66 which is immersed in the melt surface, is provided for the delivery of the liquid metal and the return of the remaining quantities to and from the smelter, in order to minimize the movement of the melt bath during transport.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
- Fig.1
- einen senkrechten Schnitt durch eine erfindungsgemäße Einrichtung zur Metallbeschickung einer waagerechten Kaltkammer - Druckgießmaschine,
- Fig.2
- einen senkrechten Schnitt durch eine erfindungsgemäße Einrichtung zur Metallbeschickung einer senkrechten Kaltkammer - Druckgießmaschine,
- Fig.3
- ein erstes Ausführungsbeispiel zur Metallbeschickung einer waagerechten Druckkammer im Detail,
- Fig.4
- ein weiteres Ausführungsbeispiel zur Metallbeschickung einer senkrechten Druckkammer im Detail, und
- Fig.5
- ein Ausführungsbeispiel der in die Schmelzeoberfläche des Flüssigmetall - Transportbehälters eintauchenden Platte.
Claims (13)
- Einrichtung zur Metallbeschickung waage - und senkrechter Kaltkammer - Druckgießmaschien (1,1a,2,2a) bestehend aus:a) einer Druckkammer (8) mit einem Druckkolben (10) und mit einer Metallübertrittsöffnung (8"), einem unter oder seitlich der Druckkammer (8) angeordneten, austauschbaren Gießofen (55) mit einem Druckbehälter (58),b) einem Ofendeckel (56,60) mit einer darauf befestigten Druck - bzw. Saugleitung (16,28), die mit dem in die Schmelze (62) des Gießofens (55) eintauchenden Ofensteigrohr (59) sowie dem Druckkammerflansch (9) eine Verbindung bildet,c) die Druck - bzw. Saugleitung (16,28) innerhalb eines Stahlgehäuses (17,36) senkrecht oder schräg zum Druckkammerflansch (9) verläuft und mit diesem eine hermetisch dichte und bewegliche Verbindung ausbildet,
dadurch gekennzeichnet,d) daß die Metallübertrittsöffnung (8") durch den einfahrenden Druckkolben (10) verschlossen wird,e) daß zwischen Druckkolben (10) und dessen Antriebsgestänge (13) ein mit inertem Gas versorgten Begasungskolben (11) innerhalb der Führungsbuchse (12) des Druckkolbens (10) derart angeordnet ist,
daß mit Verschluß der Metallübertrittsöffnung (8"), bei der Gasdruckmetallbeschickung der Gasdruck über der Schmelzeoberfläche (61) abgebaut wird. - Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die senkrechte Druck - bzw. Saugleitung (16) über ein Stahlgehäuse (17), durch ein Ofensteigrohr (59) und einer beweglichen Verbindungsleitung (46) ausgebildet wird.
- Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die senkrechte Druck - bzw. Saugleitung (16) über ein Distanzgehäuse (18), einer Kupplung (19), einer Hülse (22), einem Lagerring (23), einer Lagerschale (24) sowie einer Betätigungseinrichtung (45), arretiert und positioniert ist.
- Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die schräge Druck - bzw. Saugleitung (28) über ein Stahlgehäuse (36), durch ein Ofensteigrohr (59), einem Stecklager (29), einer Dichtung (38), einem Distanzrohr (37) sowie einer beweglichen Verbindungsleitung (46) ausgebildet wird.
- Einrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die schräge Druck - bzw. Saugleitung (28) über ein Stahlgehäuse (36), einer Kupplung (30,39), einer Scheibe (33), einem Lagerring (34,23), einer Lagerhülse (35), einer Lagerschale (24) sowie einer Betätigungseinrichtung (45), arretiert und positioniert ist.
- Einrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die thermischen Längenänderungen des Distanzrohres (37) durch eine flexible Dichtung (38) im Stecklager (29") kompensiert werden.
- Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Druckkammerflansch (9) mit der Mündungsfläche (46a) der beweglichen Verbindungsleitung (46) eine Schräge ausbildet.
- Einrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Druckkammerflansch (9) aus keramischen Materialien besteht.
- Einrichtung nach Anspruch 3, dadurch gekennzeichnet, daß bei thermischer Längenausdehnung der Druckkammer (8), der hermetische Verschluß der Verbindungsleitung (46) zum Druckkammerflansch (9) durch eine flexible Dichtung (48) sowie dem konstanten Anpreßdruck durch die Betätigungseinrichtung (45) auf die Verbindungsleitung (46) gewährleistet ist.
- Einrichtung nach einem der Ansprüche 7 - 9, dadurch gekennzeichnet, daß dem Druckkammerflansch (9) bei Aufbau von Längenschrumpfkräften der Druckkammer (8) - bei Beendigung oder Gießprozeßunterbrechung - ein einstellbarer, zeitgesteuerter Rückstellungsimpuls von der Druckgießmaschine (1,1a,2,2a) zu der Betätigungseinrichtung (45) der beweglichen Verbindungsleitung (46) zugeordnet ist.
- Einrichtung nach einem der Ansprüche 2 - 5, dadurch gekennzeichnet, daß die Stahlgehäuse-auskleidung (42), die Hülse (22), der Lagerring (23,34), die Lagerschale (24), die Scheibe (33), die Lagerhülse (35) sowie die Verkleidung (47) der beweglichen Verbindungsleitung (46), aus keramischen oder faserkeramischen Materialien bestehen.
- Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Begasungskolben (11) im Verbund mit dem Druckkolben (10) und einer mit der Druckkammer (8) verbundenen Führungsbuchse (12) einen hermetischen Begasungsringkanal (11') ausbildet.
- Verfahren zum Betreiben einer Einrichtung gemäß einem oder mehreren der Ansprüchen 1 bis 12, wobei
nach Andrücken der Mündungsfläche (46a) der beweglichen Verbindungsleitung (46) an die Druckkammerflanschübertrittsfläche (48'), die Förderung des Gießmaterials (62) durch Aufbau eines Gasdruckes über der Schmelzeoberfläche (61) im Gießofen (55) oder durch Erzeugung eines Vakuums (7) über die Gießform (5,6) in die Druckkammer (8') erfolgt,
die Gießformfüllung durch den in die Druckkammer (8') einfahrenden Druckkolben (10) erfolgt, wobei mit Verschluß der Metallübertrittsöffnung (8") -im Fall der Gasdruckmetallbeschickung-der Gasdruck über der Schmelzeoberfläche (61) abgebaut wird, und die Absenkung der Restschmelze in den Gießofen (55) erfolgt,
wobei durch die Begasung mittels eines unter atmosphärischemoder einem erhöhten Druck stehenden, inerten Gases die an der Druckkolbenmantelfläche (10a) anstehende Schmelze mittels im Gießofen (55) abgesenkt wird,
und wobei nach erneuter Befüllung der Druckkammer (8') mittels Gasdruck, die in der Druckkammer (8') und Gießform (5,6) befindliche Luft durch das in der Druck - bzw. Saugleitung (16,28) sowie dem Steigrohr (59) stehende inerte Gas verdrängt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19802342 | 1998-01-22 | ||
| DE19802342A DE19802342C1 (de) | 1998-01-22 | 1998-01-22 | Einrichtung zur Metallbeschickung waage- und senkrechter Kaltkammer - Druckgießmaschinen und Verfahren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0931610A1 EP0931610A1 (de) | 1999-07-28 |
| EP0931610B1 true EP0931610B1 (de) | 2003-06-25 |
Family
ID=7855366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99101026A Expired - Lifetime EP0931610B1 (de) | 1998-01-22 | 1999-01-21 | Einrichtung zur Metallbeschickung waage-und senkrechter Kaltkammer-Druckgiessmaschinen und Verfahren |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6318444B1 (de) |
| EP (1) | EP0931610B1 (de) |
| DE (2) | DE19802342C1 (de) |
| ES (1) | ES2201575T3 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10006814B4 (de) * | 2000-02-15 | 2007-09-06 | Bühler Druckguss AG | Verfahren und Vorrichtung zum Befüllen einer Giesskammer |
| DE20019843U1 (de) | 2000-11-22 | 2001-03-22 | Ritter Aluminium Giesserei GmbH, 73240 Wendlingen | Gießkammer für Vakuum-Druckgießmaschinen |
| EP1410861A1 (de) * | 2002-10-10 | 2004-04-21 | Gustav Ohnsmann | Metallschmelzengefäss |
| DE102004008157A1 (de) * | 2004-02-12 | 2005-09-01 | Klein, Friedrich, Prof. Dr. Dr. h.c. | Gießmaschine zur Herstellung von Gussteilen |
| CN102513517B (zh) * | 2011-12-23 | 2013-12-11 | 华南理工大学 | 一种分段可拆式间接挤压铸造合金熔体的输料管道 |
| AT521709A1 (de) * | 2018-10-05 | 2020-04-15 | Lkr Leichtmetallkompetenzzentrum Ranshofen Gmbh | Vorrichtung zum Zudosieren von Metallschmelze in eine Druckgusseinheit |
| DE102023100621A1 (de) * | 2023-01-12 | 2024-07-18 | Thomas Ninkel | Vorrichtung zum Schmelze-Dosieren an einer Druckgießmaschine |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3409995C1 (de) * | 1984-03-19 | 1985-03-14 | Norsk Hydro Magnesiumgesellschaft mbH, 4300 Essen | Steigrohr, insbesondere für eine Niederdruck-Gießvorrichtung |
| FR2605913A1 (fr) * | 1986-10-31 | 1988-05-06 | Pechiney Aluminium | Procede de moulage sous pression de pieces metalliques contenant eventuellement des fibres en ceramiques |
| FR2642686B1 (fr) * | 1989-01-16 | 1991-05-17 | Creusot Loire | Dispositif et procede d'alimentation en metal liquide pour la coulee sous pression de produits metalliques |
| US5076344A (en) * | 1989-03-07 | 1991-12-31 | Aluminum Company Of America | Die-casting process and equipment |
| US4989663A (en) * | 1989-04-14 | 1991-02-05 | Toshiba Kikai Kabushiki Kaisha | Casting apparatus |
| JPH02290658A (ja) * | 1989-04-27 | 1990-11-30 | Toshiba Mach Co Ltd | ダイカストマシンの射出方法 |
| DE4002263C2 (de) * | 1990-01-26 | 1995-04-06 | Audi Ag | Kolben-Zylindereinheit |
| DE4123464A1 (de) * | 1991-07-16 | 1993-01-21 | Audi Ag | Verfahren zum betreiben einer druckgiessmaschine |
| JPH06106330A (ja) * | 1992-09-28 | 1994-04-19 | Nissan Motor Co Ltd | ダイカスト鋳造装置 |
| US5429174A (en) * | 1993-07-15 | 1995-07-04 | Aluminum Company Of America | Vacuum die casting machine having improved siphon tube and associated method |
| JPH08150459A (ja) * | 1994-11-24 | 1996-06-11 | Kobe Steel Ltd | 高圧鋳造装置 |
| DE19613668C1 (de) * | 1996-04-04 | 1997-05-28 | Gustav Ohnsmann | Gießanlage und Verfahren zur Herstellung von Gußstücken |
-
1998
- 1998-01-22 DE DE19802342A patent/DE19802342C1/de not_active Expired - Fee Related
-
1999
- 1999-01-21 DE DE59906050T patent/DE59906050D1/de not_active Expired - Fee Related
- 1999-01-21 ES ES99101026T patent/ES2201575T3/es not_active Expired - Lifetime
- 1999-01-21 EP EP99101026A patent/EP0931610B1/de not_active Expired - Lifetime
- 1999-01-22 US US09/235,168 patent/US6318444B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE19802342C1 (de) | 1999-03-04 |
| EP0931610A1 (de) | 1999-07-28 |
| DE59906050D1 (de) | 2003-07-31 |
| US6318444B1 (en) | 2001-11-20 |
| ES2201575T3 (es) | 2004-03-16 |
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