EP0817691B1 - Process and device for charging foundry machines - Google Patents
Process and device for charging foundry machines Download PDFInfo
- Publication number
- EP0817691B1 EP0817691B1 EP96905584A EP96905584A EP0817691B1 EP 0817691 B1 EP0817691 B1 EP 0817691B1 EP 96905584 A EP96905584 A EP 96905584A EP 96905584 A EP96905584 A EP 96905584A EP 0817691 B1 EP0817691 B1 EP 0817691B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- melt
- gas
- extraction chamber
- chamber
- aperture
- 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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Classifications
-
- 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
- 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
Definitions
- the invention relates to a method for loading of casting machines with non-ferrous metal melts, according to the Melt from a removal chamber having a gas atmosphere of a melting furnace in batches of the filling opening is fed to a casting machine, and on a device to perform this procedure.
- the invention is therefore based on the object of a method of the type described at the beginning, which is a rational Melt loading with high dosing accuracy and consistency allowed.
- a device that is comparatively inexpensive should be used be created to carry out the process.
- the invention solves this problem in that the melt within the removal chamber is pumped up and metered over outlet pipe leading through the furnace wall to the filling opening is drained, in support of the melt flow a pulsed gas application of the Removal chamber takes place.
- This is the melt flow path at least partially integrated in the furnace chamber of the extraction chamber and the melt is discharged to comparatively short distances by simply draining along the outlet pipe, so that low-cost pumping devices and heating devices are sufficient for a perfect melt discharge. Doing so due to the impulse gassing of the removal chamber the dosing accuracy improved in the desired sense, since the gas impulses that complete and clearly limited leakage of the melt through secure the outlet pipe and also when in use of protective gas in the outlet area a protective atmosphere for the Melt can result.
- the removal chamber could even be used for aluminum or the like with air or the like, but the removal chamber with oxygen-free protective gas, preferably a mixture nitrogen or argon and sulfur hexafluoride, can cause melt oxidation in the discharge area and safe with sensitive metals such as magnesium or the like be prevented. Since it is the metered melt discharge is a turbulent melt flow that is not the entire outlet pipe cross-section, and the melt surface continuously torn open and newly formed, can does not become a sealing as in conventional melt baths Form protective layer so that on an oxygen-free protective gas atmosphere special attention is to be paid to the usual protective gas compositions, that from gas mixtures with air and carbon dioxide or the like. Are unsuitable.
- oxygen-free protective gas preferably a mixture nitrogen or argon and sulfur hexafluoride
- Multi-chamber furnace used which is a gas-fillable removal chamber with a melt conveyor.
- a rational one Melt discharge is achieved in that the Melt conveyor from an outside sealed Dosing pump, preferably a screw pump, with above the spout arranged spout and from a sloping, leading through the furnace side wall to the outside
- Dosing pump preferably a screw pump
- a simple and robust metering pump can be used to feed the melt without any problems achieve, preferably as a metering pump a worm pump according to AT-B-399.205 can be used can.
- This screw pump delivers with high dosing accuracy Melt in the outlet pipe, through which this with the help the one blown into the removal chamber via the inflow nozzles Gases flows freely as a gas piston and on the shortest Way to the filling opening of the casting machine, so that Difficulties due to slag formation and temperature fluctuations in the melt with little construction and maintenance and user-friendly way prevented will.
- the outlet opening of the outlet pipe is expediently provided with provided a closure, with which a greater gas consumption avoided by escaping gas between dosing processes can be.
- outlet pipe is outside the extraction chamber with a Heating device equipped, can be easily the discharge conditions for the melt over the entire length of the discharge pipe keep the same, with which the functional safety and Dosing accuracy can be increased.
- a gas preheater can be assigned and / or upstream, with what the gas temperature is adaptable to the melt temperature.
- a melting furnace 1 consists of an insulating housing 2 with suitable heaters 3 and an oven insert 4.
- the Furnace insert 4 forms one or more melt storage or Cleaning chambers 5 and a removal chamber 6, the Melting chamber 5 with a material feed device 7 and the removal chamber 6 with a melt conveyor 8 are equipped.
- the chambers 5, 6 are covered 9 sealed gastight and via gas lines 10 and inlet nozzles 11 can be charged with gas.
- the melt conveyor 8 comprises an externally sealed Dosing pump 12 with above the melt level SP spout 13 arranged inside the removal chamber 6 and an inclined, through the furnace side wall 14 after outside leading outlet pipe 15, which is in the removal chamber 6 in the pouring area of the metering pump 12 inlet opening 16 and a drain opening 17 in the filling area of a filling opening 18 for a casting machine not shown having.
- the outlet pipe 15 has its own heating device 19 temperature controlled and can be at its drain opening 17 have an automatic shutter 20.
- Melt is used for charging the filling opening 18 in batches S dosed from the removal chamber 6 by the metering pump 12 pumped up and through the inflow opening 16 into the drain pipe 15 poured through which it freely outwards into the filling opening 18 flows off.
- the removal chamber 6 impulsed with gas, for gas preheating a gas preheating device 21 to the inflow nozzles 11 can be assigned.
- This gas acts like a gas piston the melt in the drain pipe 15, which accelerates the melt flow and clearly limited without dripping, being an oxygen-free Shielding gas also prevents melt oxidation.
- the protective gas flowing out of the discharge opening 17 also exercises its protective effect also in the area of the filling opening 18 from what improves the melt loading.
- the closure 20 is closed after each melt discharge to avoid unnecessary Avoid using protective gas.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Furnace Charging Or Discharging (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Multi-Process Working Machines And Systems (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Beschicken von Gießmaschinen mit Nichteisenmetallschmelzen, nach dem Schmelze aus einer eine Gasatmosphäre aufweisenden Entnahmekammer eines Schmelzenofens chargenweise der Befüllöffnung einer Gießmaschine zugefördert wird, sowie auf eine Vorrichtung zum Durchführen dieses Verfahrens.The invention relates to a method for loading of casting machines with non-ferrous metal melts, according to the Melt from a removal chamber having a gas atmosphere of a melting furnace in batches of the filling opening is fed to a casting machine, and on a device to perform this procedure.
Bisher wird zum chargenweisen Beschicken von Gießmaschinen Schmelze aus einem Schmelzenofen mittels Gas-Druckförderung (EP-A-0 252 318) oder mit Hilfe von Kolbenpumpen bzw. Schneckenpumpen (DE-B- 1 134 183) durch über die Abdeckung des Schmelzenofens hinausführende Pumpenteile ausgetragen, womit lange Förderwege samt den Schwierigkeiten einer unerwünschten vorzeitigen Schlackenbildung und Erstarrung in Kauf zu nehmen und aufwendige Warmhalte- und Fördereinrichtungen erforderlich sind. Die Schmelzenbeschickung vor allem bei leicht oxydierbaren Nichteisenmetallen ist damit sehr bedienungs- und wartungsintensiv, beeinträchtigt die Maschinenverfügbarkeit und es kommt auch nur zu einer geringen Dosiergenauigkeit.So far, it has been used for batch feeding of casting machines Melt from a smelting furnace by means of gas pressure delivery (EP-A-0 252 318) or with the aid of piston pumps or screw pumps (DE-B-1 134 183) by covering the cover of the Pump parts leading out of the melting furnace are discharged, with what long funding routes including the difficulties of an undesirable accept premature slag formation and solidification and complex warming and conveying devices required are. The melt feed especially for easily oxidizable Non-ferrous metals is very easy to use and maintenance-intensive, affects machine availability and there is only a low dosing accuracy.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren der eingangs geschilderten Art anzugeben, das eine rationelle Schmelzenbeschickung mit hoher Dosiergenauigkeit und -konstanz erlaubt. Außerdem soll eine vergleichsweise aufwandsarme Vorrichtung zur Durchführung des Verfahrens geschaffen werden. The invention is therefore based on the object of a method of the type described at the beginning, which is a rational Melt loading with high dosing accuracy and consistency allowed. In addition, a device that is comparatively inexpensive should be used be created to carry out the process.
Die Erfindung löst diese Aufgabe dadurch, daß die Schmelze innerhalb der Entnahmekammer dosiert hochgepumpt und über ein durch die Ofenwandung hindurchführendes Auslaufrohr zur Befüllöffnung abfließen gelassen wird, wobei zur Unterstützung des Schmelzenflusses eine impulsartige Gasbeaufschlagung der Entnahmekammer erfolgt. Damit ist der Schmelzenfließweg zumindest teilweise in den Ofenraum der Entnahmekammer integriert und der Schmelzenaustrag erfolgt auf vergleichsweise kurzem Wege durch einfaches Abfließen entlang dem Auslaufrohr, so daß aufwandsarme Pumpeinrichtungen und Heizeinrichtungen für einen einwandfreien Schmelzenaustrag genügen. Dabei wird durch die Impulsbegasung der Entnahmekammer die Dosiergenauigkeit im gewünschten Sinne verbessert, da die Gasimpulse das vollständige und klar begrenzte Auslaufen der Schmelze durch das Auslaufrohr sichern und zusätzlich auch bei Verwendung von Schutzgas im Auslaufbereich eine Schutzatmosphäre für die Schmelze ergeben können. Durch die Impulsbegasung der Entnahmekammer wird die Ausströmgeschwindigkeit des Gases durch das Auslaufrohr erhöht und es entsteht für den Schmelzenfluß ein austreibender Gaskolben. Dieser verhindert, daß nach dem Pumpenstopp beim dosierten Austragen der Schmelze die wandnahen Grenzschichten der auslaufenden Schmelze innerhalb des Auslaufrohres hinter den wandferneren Schmelzenpartikeln zurückbleiben, wodurch das endgültige Leerlaufen länger dauern würde und mit einem Nachtropfen verbunden wäre. Durch die Erhöhung der Gasgeschwindigkeit innerhalb des Auslaufrohres können hingegen die wandnahen Schichten der Auslaufschmelzen beschleunigt und damit der Dosiervorgang schneller zum Abschluß gebracht werden, es kommt zu keinem Nachtropfen und die Dosiergenauigkeit wird gesteigert. Trotz der einfachen Schmelzenaustragsmaßnahmen ist daher ein störunanfälliges und exakt dosierbares Fördern der Schmelze sichergestellt. The invention solves this problem in that the melt within the removal chamber is pumped up and metered over outlet pipe leading through the furnace wall to the filling opening is drained, in support of the melt flow a pulsed gas application of the Removal chamber takes place. This is the melt flow path at least partially integrated in the furnace chamber of the extraction chamber and the melt is discharged to comparatively short distances by simply draining along the outlet pipe, so that low-cost pumping devices and heating devices are sufficient for a perfect melt discharge. Doing so due to the impulse gassing of the removal chamber the dosing accuracy improved in the desired sense, since the gas impulses that complete and clearly limited leakage of the melt through secure the outlet pipe and also when in use of protective gas in the outlet area a protective atmosphere for the Melt can result. Through the gassing of the sampling chamber is the outflow velocity of the gas the outlet pipe increases and it arises for the melt flow an expelling gas piston. This prevents that after the Pump stop when dispensing the melt near the wall Boundary layers of the emerging melt within the Outlet pipe remain behind the melt particles away from the wall, making the final idle take longer and would be associated with dripping. Through the Increase in the gas velocity within the outlet pipe on the other hand, the layers of the outlet melts close to the wall accelerated and thus the dosing process faster at the end brought, there is no dripping and the dosing accuracy is increased. Despite the simple Melt discharge measures are therefore prone to failure and precisely metered conveying of the melt ensured.
Die Entnahmekammer ließe sich bei Aluminium od. dgl. sogar mit Luft od. dgl. beaufschlagen, doch wird die Entnahmekammer mit sauerstofffreiem Schutzgas, vorzugsweise einem Gemisch aus Stickstoff oder Argon und Schwefelhexafluorid, beaufschlagt, können Schmelzoxydationen auch im Austragsbereich und bei heiklen Metallen, wie Magnesium od. dgl., sicher unterbunden werden. Da es sich beim dosierten Schmelzenaustrag um einen turbulenten Schmelzenstrom handelt, der nicht den gesamten Auslaufrohrquerschnitt erfaßt, und die Schmelzenoberfläche dauernd aufgerissen und neu gebildet wird, kann sich nicht wie bei üblichen Schmelzenbädern eine abdichtende Schutzschicht bilden, so daß auf eine sauerstofffreie Schutzgasatmosphäre besonders zu achten ist und übliche Schutzgaszusammensetzungen, die aus Gasgemischen mit Luft und Kohlendioxid od. dgl. bestehen, ungeeignet sind.The removal chamber could even be used for aluminum or the like with air or the like, but the removal chamber with oxygen-free protective gas, preferably a mixture nitrogen or argon and sulfur hexafluoride, can cause melt oxidation in the discharge area and safe with sensitive metals such as magnesium or the like be prevented. Since it is the metered melt discharge is a turbulent melt flow that is not the entire outlet pipe cross-section, and the melt surface continuously torn open and newly formed, can does not become a sealing as in conventional melt baths Form protective layer so that on an oxygen-free protective gas atmosphere special attention is to be paid to the usual protective gas compositions, that from gas mixtures with air and carbon dioxide or the like. Are unsuitable.
Zur Schmelzenbeschickung von Gießmaschinen werden Zwei- oder Mehrkammerofen eingesetzt, die eine gasbefüllbare Entnahmekammer mit einer Schmelzenfördereinrichtung umfassen. Ein rationeller Schmelzenaustrag wird dabei dadurch erreicht, daß die Schmelzenfördereinrichtung aus einer nach außen abgedichteten Dosierpumpe, vorzugsweise einer Schneckenpumpe, mit oberhalb des Schmelzenspiegels angeordnetem Ausguß sowie aus einem schräggeneigten, durch die Ofenseitenwandung nach außen führenden Auslaufrohr besteht, das eine im Ausgußbereich der Dosierpumpe liegende Zuflußöffnung und eine auf die Befüllöffnung der Gießmaschine ausgerichtete Abflußöffnung aufweist, und daß in die Entnahmekammer Einströmdüsen zur impulsartigen Gasbeaufschlagung münden. Mit Hilfe einer einfachen und robusten Dosierpumpe läßt sich hier eine problemlose Schmelzenbeschickung erreichen, wobei als Dosierpumpe vorzugsweise eine Schneckenpumpe nach dem AT-B-399.205 eingesetzt werden kann. Diese Schneckenpumpe fördert mit hoher Dosiergenauigkeit Schmelze in das Auslaufrohr, durch das diese unter Mithilfe des über die Einströmdüsen in die Entnahmekammer eingeblasenen Gases als Gaskolben frei ausfließt und auf kürzestem Weg zur Befüllöffnung der Gießmaschine gelangt, so daß Schwierigkeiten durch Schlackenbildung und Temperaturschwankungen in der Schmelze mit geringem Bauaufwand und auf wartungs- und bedienungsfreundliche Art und Weise unterbunden werden.Two or two are used for the melt loading of casting machines Multi-chamber furnace used, which is a gas-fillable removal chamber with a melt conveyor. A rational one Melt discharge is achieved in that the Melt conveyor from an outside sealed Dosing pump, preferably a screw pump, with above the spout arranged spout and from a sloping, leading through the furnace side wall to the outside There is a discharge pipe, one in the pouring area of the metering pump lying inflow opening and one on the filling opening the casting machine has aligned drain opening, and that in the removal chamber inflow nozzles to pulse Gas supply discharge. With the help of a simple and robust metering pump can be used to feed the melt without any problems achieve, preferably as a metering pump a worm pump according to AT-B-399.205 can be used can. This screw pump delivers with high dosing accuracy Melt in the outlet pipe, through which this with the help the one blown into the removal chamber via the inflow nozzles Gases flows freely as a gas piston and on the shortest Way to the filling opening of the casting machine, so that Difficulties due to slag formation and temperature fluctuations in the melt with little construction and maintenance and user-friendly way prevented will.
Zweckmäßigerweise ist die Abflußöffnung des Auslaufrohres mit einem Verschluß versehen, womit ein größerer Gasverbrauch durch ausströmendes Gas zwischen den Dosiervorgängen vermieden werden kann.The outlet opening of the outlet pipe is expediently provided with provided a closure, with which a greater gas consumption avoided by escaping gas between dosing processes can be.
Ist das Auslaufrohr außerhalb der Entnahmekammer mit einer Heizeinrichtung ausgestattet, lassen sich auf einfache Weise die Auslaufbedingungen für die Schmelze über die gesamte Auslaufrohrlänge gleichhalten, womit die Funktionssicherheit und Dosiergenauigkeit erhöht werden.If the outlet pipe is outside the extraction chamber with a Heating device equipped, can be easily the discharge conditions for the melt over the entire length of the discharge pipe keep the same, with which the functional safety and Dosing accuracy can be increased.
Um vor allem bei größeren Anlagen eine Abkühlung der Schmelze durch die Impulsbegasung zu vermeiden, kann den Einströmdüsen eine Gasvorwärmeinrichtung zu- und/oder vorgeordnet sein, womit die Gastemperatur an die Schmelzentemperatur anpaßbar ist.In order to cool the melt, especially in larger systems Avoiding the impulse gassing can reduce the inflow nozzles a gas preheater can be assigned and / or upstream, with what the gas temperature is adaptable to the melt temperature.
In der Zeichnung ist der Erfindungsgegenstand beispielsweise an Hand eines teilgeschnittenen Anlageschemas näher veranschaulicht.In the drawing, the subject matter of the invention is, for example illustrated with the help of a partially cut investment scheme.
Ein Schmelzenofen 1 besteht aus einem Isoliergehäuse 2 mit
geeigneten Heizeinrichtungen 3 und einem Ofeneinsatz 4. Der
Ofeneinsatz 4 bildet ein oder mehrere Schmelzenspeicher- bzw.
Reinigungskammern 5 und eine Entnahmekammer 6, wobei die
Schmelzenkammer 5 mit einer Materialzuführeinrichtung 7 und
die Entnahmekammer 6 mit einer Schmelzenfördereinrichtung 8
ausgestattet sind. Die Kammern 5, 6 sind mit einer Abdeckung
9 gasdicht abgeschlossen und über Gasleitungen 10 und Einströmdüsen
11 mit Gas beaufschlagbar.A
Die Schmelzenfördereinrichtung 8 umfaßt eine nach außen abgedichtete
Dosierpumpe 12 mit oberhalb des Schmelzenspiegels
SP innerhalb der Entnahmekammer 6 angeordnetem Ausguß 13 sowie
ein schräggeneigtes, durch die Ofenseitenwandung 14 nach
außen führendes Auslaufrohr 15, das eine in der Entnahmekammer
6 im Ausgußbereich der Dosierpumpe 12 liegende Zuflußöffnung
16 und eine Abflußöffnung 17 im Einfüllbereich einer Befüllöffnung
18 für eine nicht weiter dargestellte Gießmaschine
aufweist. Das Auslaufrohr 15 ist über eine eigene Heizeinrichtung
19 temperaturgeregelt und kann an seiner Abflußöffnung
17 einen automatischen Verschluß 20 aufweisen.The
Zum chargenweisen Beschicken der Befüllöffnung 18 wird Schmelze
S aus der Entnahmekammer 6 durch die Dosierpumpe 12 dosiert
hochgepumpt und durch die Zuflußöffnung 16 in das Ablaufrohr
15 eingegossen, durch das es frei nach außen in die Befüllöffnung
18 abfließt. Zur Unterstützung des Schmelzenflusses wird
nach dem Pumpenstopp über die Einströmdüsen 11 die Entnahmekammer
6 impulsartig mit Gas beaufschlagt, wobei zur Gasvorwärmung
den Einströmdüsen 11 eine Gasvorwärmeinrichtung 21
zugeordnet sein kann. Dieses Gas wirkt wie ein Gaskolben auf
die Schmelze im Ablaufrohr 15, der den Schmelzenfluß beschleunigt
und ohne Nachtropfen klar begrenzt, wobei ein sauerstofffreies
Schutzgas außerdem eine Schmelzenoxydation verhindert.
Das aus der Abflußöffnung 17 ausströmende Schutzgas übt außerdem
seine Schutzwirkung auch im Bereich der Befüllöffnung 18
aus, was die Schmelzenbeschickung verbessert. Der Verschluß
20 wird nach jedem Schmelzenaustrag geschlossen, um einen unnötigen
Schutzgasverbrauch zu vermeiden.Melt is used for charging the filling opening 18 in batches
S dosed from the removal chamber 6 by the
Claims (7)
- A method of charging casting machines with non-ferrous metal melts, wherein melt (S) is fed batchwise to the filling aperture (18) of a casting machines from the extraction chamber (6) of a melting furnace, said chamber having a gas atmosphere, characterised in that the melt is pumped up in metered quantities inside the extraction chamber and discharged to the filling aperture via an outflow pipe extending through the furnace wall, the extraction chamber being subjected to pulsed gas admission to assist the melt flow.
- A method according to Claim 1, characterised in that the extraction chamber is fed with oxygen-free protective gas, preferably a mixture of nitrogen or argon and sulphur hexafluoride.
- Apparatus for performing the method according to Claim 1 or 2, comprising a melting furnace forming an extraction chamber, the latter, which is coverable and fillable with protective gas, accommodating a melt conveyor device, characterised in that the melt conveyor device (8) consists of a metering pump (12) sealed from the exterior, with an outlet (13) disposed above the melt level (SP), and of an obliquely inclined outflow pipe (15) which leads to the exterior through the furnace side wall (14) and which has an inflow aperture (16) disposed in the outlet zone of the metering pump (12) and an outflow aperture (17) aligned with the filling aperture (18) of the casting machine, and in that inflow nozzles (11) for pulsed gas admission lead into the extraction chamber (6).
- Apparatus according to Claim 3, characterised in that the outflow aperture (17) of the outlet pipe (15) is provided with a closure (20).
- Apparatus according to Claim 3 or 4, characterised in that the outflow pipe (15) is equipped with a heating device (19) outside the extraction chamber (6).
- Apparatus according to any one of Claims 3 to 5, characterised in that a gas preheating device (21) is associated with or is disposed upstream of the inflow nozzles (11).
- Apparatus according to any one of Claims 3 to 6, characterised in that the metering pump (12) is constructed as a screw pump.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0052995A AT404328B (en) | 1995-03-24 | 1995-03-24 | METHOD AND DEVICE FOR LOADING CASTING MACHINES |
| AT529/95 | 1995-03-24 | ||
| PCT/AT1996/000054 WO1996030142A1 (en) | 1995-03-24 | 1996-03-21 | Process and device for charging foundry machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0817691A1 EP0817691A1 (en) | 1998-01-14 |
| EP0817691B1 true EP0817691B1 (en) | 1998-09-23 |
Family
ID=3493039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96905584A Expired - Lifetime EP0817691B1 (en) | 1995-03-24 | 1996-03-21 | Process and device for charging foundry machines |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5908066A (en) |
| EP (1) | EP0817691B1 (en) |
| JP (1) | JP3723903B2 (en) |
| AT (2) | AT404328B (en) |
| DE (1) | DE59600604D1 (en) |
| ES (1) | ES2121638T3 (en) |
| NO (1) | NO319936B1 (en) |
| WO (1) | WO1996030142A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1795283A1 (en) | 2005-12-06 | 2007-06-13 | Meltec Industrieofenbau GmbH | Device for charging foundry machines with metal melt |
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| DE10121209B4 (en) * | 2001-04-30 | 2004-02-05 | Müller Weingarten AG | Dosing or charging system |
| CA2449091A1 (en) * | 2002-11-13 | 2004-05-13 | Alain Renaud Boulet | Magnesium die casting system |
| US6973955B2 (en) * | 2003-12-11 | 2005-12-13 | Novelis Inc. | Heated trough for molten metal |
| JP2006035238A (en) * | 2004-07-22 | 2006-02-09 | Hoei Shokai:Kk | System, vessel, and vehicle for supplying molten metal |
| JP4602153B2 (en) * | 2005-05-13 | 2010-12-22 | 株式会社豊栄商会 | Molten metal supply container and molten metal supply method |
| GB2420733B (en) * | 2004-07-22 | 2009-09-02 | Hoei Shokai Co Ltd | System for supplying molten, container and a vehicle |
| CA2673272A1 (en) * | 2006-12-19 | 2008-06-26 | Novelis Inc. | Method of and apparatus for conveying molten metals while providing heat thereto |
| US8465277B2 (en) | 2009-06-29 | 2013-06-18 | David Deng | Heat engine with nozzle |
| US9829195B2 (en) | 2009-12-14 | 2017-11-28 | David Deng | Dual fuel heating source with nozzle |
| CN103668327B (en) * | 2013-10-31 | 2016-08-17 | 贵州顺安机电设备有限公司 | Inhale the pouring aluminium ladle of aluminum pipe band opening and closing device |
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| DE4029386C2 (en) * | 1990-09-12 | 1993-12-16 | Strikfeldt & Koch | Method and device for dosing liquids, in particular molten metal |
| US5407000A (en) * | 1992-02-13 | 1995-04-18 | The Dow Chemical Company | Method and apparatus for handling molten metals |
| CA2086879A1 (en) * | 1993-01-07 | 1994-07-08 | Henry Meyer | Process and apparatus for delivering a metered shot |
| AT401302B (en) * | 1993-01-26 | 1996-08-26 | Rauch Fertigungstech Gmbh | TWO-CHAMBER OVEN FOR MELTING OF MOLDED CASTING MACHINES |
| AT399205B (en) * | 1993-01-26 | 1995-04-25 | Rauch Fertigungstech Gmbh | SCREW PUMP FOR CONVEYING METAL MELT |
-
1995
- 1995-03-24 AT AT0052995A patent/AT404328B/en not_active IP Right Cessation
-
1996
- 1996-03-21 AT AT96905584T patent/ATE171406T1/en active
- 1996-03-21 JP JP52869596A patent/JP3723903B2/en not_active Expired - Lifetime
- 1996-03-21 DE DE59600604T patent/DE59600604D1/en not_active Expired - Lifetime
- 1996-03-21 ES ES96905584T patent/ES2121638T3/en not_active Expired - Lifetime
- 1996-03-21 EP EP96905584A patent/EP0817691B1/en not_active Expired - Lifetime
- 1996-03-21 WO PCT/AT1996/000054 patent/WO1996030142A1/en active IP Right Grant
- 1996-03-21 US US08/913,663 patent/US5908066A/en not_active Expired - Lifetime
-
1997
- 1997-09-23 NO NO19974401A patent/NO319936B1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1795283A1 (en) | 2005-12-06 | 2007-06-13 | Meltec Industrieofenbau GmbH | Device for charging foundry machines with metal melt |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0817691A1 (en) | 1998-01-14 |
| ATA52995A (en) | 1998-03-15 |
| US5908066A (en) | 1999-06-01 |
| NO974401D0 (en) | 1997-09-23 |
| WO1996030142A1 (en) | 1996-10-03 |
| ES2121638T3 (en) | 1998-12-01 |
| JP3723903B2 (en) | 2005-12-07 |
| NO974401L (en) | 1997-09-23 |
| NO319936B1 (en) | 2005-10-03 |
| ATE171406T1 (en) | 1998-10-15 |
| AT404328B (en) | 1998-10-27 |
| JPH11505475A (en) | 1999-05-21 |
| DE59600604D1 (en) | 1998-10-29 |
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