DE1583678A1 - Method and device for the metered discharge of molten metal - Google Patents

Method and device for the metered discharge of molten metal

Info

Publication number
DE1583678A1
DE1583678A1 DE19671583678 DE1583678A DE1583678A1 DE 1583678 A1 DE1583678 A1 DE 1583678A1 DE 19671583678 DE19671583678 DE 19671583678 DE 1583678 A DE1583678 A DE 1583678A DE 1583678 A1 DE1583678 A1 DE 1583678A1
Authority
DE
Germany
Prior art keywords
metal
discharge chamber
pressure
discharge
gas
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.)
Pending
Application number
DE19671583678
Other languages
German (de)
Inventor
Solheim Peder Ragnvald
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.)
Norsk Hydro Elektrisk Kvaelstof AS
Original Assignee
Norsk Hydro Elektrisk Kvaelstof AS
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 Norsk Hydro Elektrisk Kvaelstof AS filed Critical Norsk Hydro Elektrisk Kvaelstof AS
Publication of DE1583678A1 publication Critical patent/DE1583678A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/30Accessories for supplying molten metal, e.g. in rations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00Equipment for supplying molten metal in rations
    • B22D39/02Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00Equipment for supplying molten metal in rations
    • B22D39/06Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by controlling the pressure above the molten metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Claims (8)

1. Verfahren bei dosiertem Austragen von schmelzflüssigem Metall unter Anwendung einer Austragskammer, die während des Austragens ganz oder teilweise im flüssigen Metall herabgesenkt gehalten wird, welches Metall einer Giessrinne zugeführt werden soll und welche Austragskammer mit Einlauf und Auslauf für Metall versehen ist, sowie mit Einlauf für Gas unter Druck, welches Gas dazu dient Metall aus der Austragskammer an die Giessrinne herauszudrücken, dadurch gekennzeichnet, dass der Druck des Austragsgases erhöht wird bis ein im voraus bestimmter maximaler Druck erreicht wird, wobei die Druckerhöhung je Zeiteinheit bis zum letzten Augenblick gross genug gehalten wird um einen kontinuierlichen und zufriedenstellend reichlichen Metallstrom aufrechtzuhalten, worauf die Druck-Erhöhung plötzlich durch eine Drucksenkung abgelöst wird.1. Method with the metered discharge of molten metal using a discharge chamber which during the Discharge is kept completely or partially lowered in the liquid metal, which metal is fed to a pouring channel and which discharge chamber is provided with inlet and outlet for metal, as well as with inlet for gas under pressure, which gas is used to push metal out of the discharge chamber to the pouring channel, characterized in that the The pressure of the discharge gas is increased until a predetermined maximum pressure is reached, the pressure increase per unit of time is kept large enough to the last moment to be continuous and satisfactorily abundant To maintain metal flow, whereupon the pressure increase is suddenly replaced by a pressure decrease. 2. Verfahren gemäss Anspruch 1, dadurch gekennzeichnet2. The method according to claim 1, characterized dass der Druck des Gases in der Austragskammer wenn ein Austragen stattgefundet hat, zu einem Druck gesenkt wird der niedriger ist als der statische Druck im Metall ausserhalb der Austragskammer in Höhe mit der Einlauföffnung in der Austragskammer, so dass v/enn der Gasdruck aufs Neue erhöht wird, wird Metall aus der Austragskammer durch den Einlauf hinausströmen bis das Niveau des Metalles in der Austragskammer in Höhe mit der Einlauföffnung steht, worauf das Ausströmen von Metall durch den Auslauf beginnt.that the pressure of the gas in the discharge chamber when a discharge has taken place, is lowered to a pressure that is lower than the static pressure in the metal outside the Discharge chamber at the same height as the inlet opening in the discharge chamber, so that when the gas pressure is increased again, metal will flow out of the discharge chamber through the inlet until the level of the metal in the discharge chamber is level with the inlet opening, whereupon the outflow of metal through the run begins. 3. Vorrichtung zum Ausführen des Verfahrens gemäss3. Device for carrying out the method according to Anspruch 1, gekennzeichnet durch eine Bedingungsvorrichtung (9)Claim 1, characterized by a condition device (9) Vr-ni '-■· ■ ' ■ n l ' ' ' <■ Vr-ni '- ■ · ■' ■ nl '''<■ , .1 '■'■ , .1 '■' ■ . i-l». i-l » it.s..1 ! t . άit.s .. 1 ! t. ά 009844/0253009844/0253 BAD ORIGINALBATH ORIGINAL für ein in der Gaszufuhrleitung angeordnetes Ventil (15), welche Bedingungsvorrichtung in Verbindung mit der Austragskammer steht und auf den eingestellten, maximalen Druck reagiert, und wenn dieser Druck erreicht wird, das genannte Ventil imstellt von einer Stellung in welcher die Austragskammer mit einer Druckgasquelle verbunden ist zu einer Stellung in welcher die Austragskammer mit einem Raum (beispielsweise der Atmosphäre) verbunden ist, wo der Druck niedriger ist als der genannt maximale Austragsdruck.for a valve (15) arranged in the gas supply line, which condition device is in connection with the discharge chamber and reacts to the set maximum pressure, and when this pressure is reached, sets the valve mentioned from a position in which the discharge chamber is connected to a source of pressurized gas to a position in which the The discharge chamber is connected to a space (for example the atmosphere) where the pressure is lower than that mentioned maximum discharge pressure. 4. Vorrichtung gemäß Anspruch 8 zum Ausführen eines Verfahrens geraäss Anspruch 2, dadurch gekennzeichnet, dass der Metalleinlauf (3) in der Austragskammer in einer Höhe ausmündet, die niedriger ist als das Niveau des der Austragskammer umgebenen Metalles, aber höher als die Metallauslauföffnung, und in dem umgebenen Metall in einer Tiefe ausmündet, wo der Druck gleich oder grosser ist als der maximale Gasdruck in der Austragskammer.4. Apparatus according to claim 8 for performing a method geraäss claim 2, characterized in that the Metal inlet (3) opens into the discharge chamber at a height which is lower than the level of the one surrounding the discharge chamber Metal, but higher than the metal outlet opening, and discharges into the surrounding metal at a depth where the pressure is the same or is greater than the maximum gas pressure in the discharge chamber. 5. Vorrichtung gemäss Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Metallauslauföffnung in der Austragskammer sich am oberen Ende des einen Armes (5; 35) eines U-förmigen Rohres (23; 33) befindet, dessen anderer Arm (4; 24) mit einer Giessrinne (6) verbündet ist.5. Device according to claim 3 or 4, characterized in that that the metal outlet opening in the discharge chamber is at the upper end of one arm (5; 35) of a U-shaped Tube (23; 33) is located, the other arm (4; 24) is connected to a pouring channel (6). 6. Vorrichtung gemäss Anspruch 5, dadurch gekennzeichnet6. Apparatus according to claim 5, characterized dass der Teil (5a) des erstgenannten Armes (5) des U-Rohres (23), wo der Metallmeniskus sich befinden wird beim Abschliessen des Austragens einen reduzierten Querschnitt hat.that the part (5a) of the first-mentioned arm (5) of the U-tube (23), where the metal meniscus is located has a reduced cross-section when the discharge is completed. 7. Vorrichtung gemäss Anspruch 3 oder 4, dadurch gekennzeichnet dass der erstgenannte Arm (5; 35) des U-Rohres (23; 33)7. Device according to claim 3 or 4, characterized in that the first-mentioned arm (5; 35) of the U-tube (23; 33) Vom Deiits*rn F.·1.·- ·-nt ohne WeVom Deiits * rn F. · 1. · - · -nt without We ein Stück hinauf in der Austragskammer regt.^^ '.1.1 V.t-^2 up a little in the discharge chamber . ^^ ' .1.1 Vt- ^ 2 009844/0253 »ed«flat>e in·» t :o ...» I -w-L009844/0253 "ed" fl at> e in · "t: o ..." I -wL 8. Vorrichtung gemäss Anspruch 3, 4 oder 5, dadurch ' gekennzeichnet, dass der Teil (4a) des anderen Armes (4) des U-Rohres (23) dass in Höhe mit dem Metallniveau ausserhalb der Austragslcammer einen reduzierten Querschnitt hat.8. Device according to claim 3, 4 or 5, characterized ' characterized in that the part (4a) of the other arm (4) of the U-tube (23) that in height with the metal level outside the Discharge chamber has a reduced cross-section. Vom Dp"1 '"■··<"■' ' >n» i1 up jede Ct'-vV ι ; ! vonFrom Dp " 1 '" ■ ·· <"■''> n» i 1 up every Ct'-vV ι;! From 0098AA/02530098AA / 0253 LeerseiteBlank page
DE19671583678 1966-11-30 1967-11-20 Method and device for the metered discharge of molten metal Pending DE1583678A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO165813A NO123618B (en) 1966-11-30 1966-11-30

Publications (1)

Publication Number Publication Date
DE1583678A1 true DE1583678A1 (en) 1970-10-29

Family

ID=19909831

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671583678 Pending DE1583678A1 (en) 1966-11-30 1967-11-20 Method and device for the metered discharge of molten metal

Country Status (11)

Country Link
US (1) US3471057A (en)
BE (1) BE707368A (en)
CH (1) CH465782A (en)
DE (1) DE1583678A1 (en)
DK (1) DK119841B (en)
FR (1) FR1548754A (en)
GB (1) GB1188663A (en)
LU (1) LU54929A1 (en)
NL (1) NL6716229A (en)
NO (1) NO123618B (en)
SE (1) SE350205B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689050A (en) * 1970-11-24 1972-09-05 O H Warwick Co Apparatus for controlling dispensing of molten metal
US3921859A (en) * 1974-01-24 1975-11-25 Piero Colombani Siphon for molten metals with suction actuator
US4216886A (en) * 1979-03-30 1980-08-12 Prokopenko Leonid I Immersible pneumatic weighing doser for molten metals
DE3023261C2 (en) * 1980-06-21 1983-01-13 Norsk Hydro Magnesiumgesellschaft mbH, 4300 Essen Mouthpiece for the end of a delivery line of a metering device for delivering liquid metal
JPS59195158U (en) * 1983-06-13 1984-12-25 三菱電機株式会社 AC elevator control device
US5207132A (en) * 1991-10-16 1993-05-04 Textron Inc. Elliptical lobed drive system
US6742568B2 (en) 2001-05-29 2004-06-01 Alcoa Inc. Casting apparatus including a gas driven molten metal injector and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674640A (en) * 1952-03-21 1954-04-06 Ajax Engineering Corp Apparatus for dispensing molten metal
US2846740A (en) * 1956-09-17 1958-08-12 Lindberg Eng Co Furnace ladling apparatus
US3286311A (en) * 1964-02-17 1966-11-22 Modern Equipment Co Control apparatus for pouring molten metal
GB1063840A (en) * 1964-10-26 1967-03-30 Davy & United Eng Co Ltd Apparatus for feeding flowable material

Also Published As

Publication number Publication date
BE707368A (en) 1968-04-01
LU54929A1 (en) 1968-02-16
GB1188663A (en) 1970-04-22
NO123618B (en) 1971-12-20
CH465782A (en) 1968-11-30
FR1548754A (en) 1968-12-06
NL6716229A (en) 1968-05-31
SE350205B (en) 1972-10-23
DK119841B (en) 1971-03-01
US3471057A (en) 1969-10-07

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