EP1002601B1 - Hot chamber die casting machine - Google Patents
Hot chamber die casting machine Download PDFInfo
- Publication number
- EP1002601B1 EP1002601B1 EP99120823A EP99120823A EP1002601B1 EP 1002601 B1 EP1002601 B1 EP 1002601B1 EP 99120823 A EP99120823 A EP 99120823A EP 99120823 A EP99120823 A EP 99120823A EP 1002601 B1 EP1002601 B1 EP 1002601B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hot
- chamber pressure
- flat tube
- neck
- casting vessel
- 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
Links
- 238000004512 die casting Methods 0.000 title claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 29
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 11
- 239000011777 magnesium Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000000155 melt Substances 0.000 claims abstract description 5
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 3
- 239000004744 fabric Substances 0.000 claims description 5
- 238000010292 electrical insulation Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 abstract description 3
- 230000006698 induction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2038—Heating, cooling or lubricating the injection unit
Definitions
- the invention relates to a hot chamber die casting machine Processing of magnesium melts, with a casting container with a riser hole, with a conical mouthpiece and with a nozzle attached to the mouthpiece, as well as with a induction heating device operating at medium frequency or with one at the lower limit of the radio frequency Frequency is operated, with a ring inductor in the Level the cover of the crucible for the melt around the neck of the casting container is laid.
- a hot chamber die casting machine of this type is from DE 195 43 805 A1 known. There you have to have a heater in the area to reach the neck of the pouring can provided two halves built ring inductor, which then but, since the neck of the pouring tank - at least in the built-in Condition of the pouring container - very difficult to access is assembled and disassembled in a complex manner must become. It usually becomes necessary, too loosen the pouring container to make his neck more accessible do.
- the present invention is based on the object an easy to install solution for the ring inductor in the area of the neck of the pouring container, which is also so configurable that the ring inductor can be cooled with air is.
- this task is solved of the type mentioned that the ring inductor made of a flexible tube made of elastic Material that forms a one-piece ring, which is open at one point and there with connections for energy and is provided for cooling air flowing through.
- the tube can be a flat tube be that around a parallel to its larger side faces extending axis is bent. It can be done in another Embodiment of the invention one of the larger side surfaces of the flat tube to be connected to a carrier tape, wherein Carrier tape and flat tube with an insulating fabric for thermal and electrical insulation can be surrounded.
- the insulating fabric can consist of a band around the flat tube and the carrier band is wrapped around.
- Fig. 1 is part of a hot chamber die casting machine shown that is used to process magnesium.
- the liquid magnesium is at temperatures from approx. 630 ° C to 680 ° C within the not shown Crucible 1.
- this crucible 1 protrudes through a cover 2.
- Pouring container 3 in, a riser 4 with a cone-like trained mouthpiece 5 has.
- the casting tank 3 there is also a casting piston, not shown, of the piston rod 6 in a known manner is introduced into the top of the casting cylinder 7, which consists of the crucible 1 with the amount of liquid magnesium to be poured fills before the piston closes the filler opening Movement completes and the molten metal through the riser 4 pushes up.
- a nozzle is inserted into the mouthpiece 5 of the casting container 3 8, the one with her mouthpiece 9 into the sprue area Form 10 is sufficient, which is only indicated schematically.
- a sleeve-shaped inductive heating element 12 is pushed on.
- Two further sleeve-shaped inductive radiators 13 and 14 are on the central area of the nozzle 8 or on the area of the mouthpiece 9 of the nozzle 8 pushed on. It can do that happen that the sleeve body 12 before assembly the nozzle 8 is pushed on, that then the nozzle in its cone-like Port 5 is used and then the two Sleeve bodies 13 and 14 are pushed onto the nozzle.
- a separate attachment is usually not necessary because the sleeve body 13 and 14 because of the light Inclination of the nozzle 8 are held by themselves and the Sleeve body on the also slightly sloping neck 11 also holds without separate fasteners. All radiators 12, 13 and 14 can, since there is no attachment, very easily Hand shifted to ensure the optimal temperature to get in the appropriate areas.
- the sleeve body 12 is placed on the approach 11 that he protrudes the front end of it.
- the sleeve body 12 It also towers over a nut 15, which can be removed later the nozzle 8 is screwed onto it, and a monitoring device, on the inside of the sleeve body 12 in the form of a ring provided with a contact loop 16 is arranged.
- a monitoring device on the inside of the sleeve body 12 in the form of a ring provided with a contact loop 16 is arranged.
- the monitoring device 16 serves for efflorescence of magnesium in the cavity 18 between the sleeve body 12 and the nozzle 8 to detect, for example, by a leak between the neck 11 and the nozzle 8 or also due to leaks in the area of the neck 19 of the casting container 3 and through this into the area inside the sleeve body 12 magnesium can occur.
- a ring inductor 20 put on and also in the area of the crucible cover 2, which is also opposite in a manner not shown the casting container 3 is sealed.
- Fig. 2 shows that the ring inductor 20 with a flat tube 21 is equipped with one of its larger side surfaces is soldered to a metallic carrier tape 22.
- Either the flat tube 21 and the carrier tape 22 exist made of a magnetically active material, for example made of a copper alloy or stainless steel.
- the carrier tape 22 and the flat tube 21 are of a thermal and electrically effective insulation 23 surround the in the embodiment from a ribbon-shaped insulating fabric 23a, which is around the flat tube 21 and the carrier tape 22 is wound helically.
- the flat tube 21 and that Carrier tape 22 are parallel to the larger sides of the flat tube 21 extending axis 30 bent in the attached State, see Fig. 3 and 4 - with the central axis of the neck 19 of the casting container 13 coincides.
- Fig. 3 shows that the ring inductor 20 by one Section of the neck 19 of the casting container 3 is laid around in such a way that it fits one of the larger side surfaces of the Flat tube 21 with that which is not with the carrier tape 22 is connected to the outer surface of the neck 19 of the Casting container 3 is present.
- Fig. 4 also shows that the ring inductor 20 of the flat tube 21 and the carrier tube 22 as a one-piece Ring is formed, but which is open at point 24 and there each with connections 25 and 25a for the feed and Dissipation of the electrical energy, in the embodiment one Induction voltage with medium frequency or with one the lower limit of the radio frequency is.
- the connections 25 and 25a also point in not shown in each case a connection piece for the supply of cooling air through the flat tube 21st can flow for the purpose of cooling and at an approximately diametrical the point opposite the connections 25 and 25a leave the flat tube again through an exhaust port 26 can.
- the cooling air is therefore - starting from the connecting piece 25 and 25a - each about half of the ring inductor 20 passed around and then passes through the nozzle 26th out again.
- the flat tube 21 and the carrier tape 22 are made as before was already hinted at from an elastic material that a bending of the ring inductor 20 into its position 20 ' allowed, which is indicated by dashed lines in FIG. 4.
- the Elasticity of both the flat tube 21 and the carrier tape 22 must therefore be large enough to accommodate such a bend to allow. It has been shown that in this regard no difficulties. If the ring inductor 20 in its position 20 'according to Fig. 4 is bent, then it leaves in a very simple manner laterally on the neck 19 of the casting container postpone or remove from it. Due to its elasticity it takes the solid 4 position when the spreading forces are eliminated.
- the final attachment can then be very simple, for example with a fastening screw.
- This thus designed ring inductor can then be used with the same Energy as well as the inductors 12 and 13 and 14 supplied and are connected to the same cooling air source. It has the great advantage of very simple assembly and disassembly, which is therefore easy too can be carried out in the installed state of the casting tank.
- connections 25 and 25a in the bent state i.e. in their position 25 'and 25a ', have a distance a from one another which corresponds to the diameter d of the neck 19 of the casting container 3 corresponds to the To be able to carry out assembly or disassembly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
Description
Die Erfindung betrifft eine Warmkammer-Druckgießmaschine zur Verarbeitung von Magnesium-Schmelzen, mit einem Gießbehälter mit einer Steigbohrung, mit einem konusartigen Mundstück und mit einer an das Mundstück angesetzten Düse, sowie mit einer induktiv arbeitenden Heizeinrichtung, die mit Mittelfrequenz oder mit einer an der unteren Grenze der Hochfrequenz liegenden Frequenz betrieben ist, wobei ein Ringinduktor in der Ebene der Abdeckung des Tiegels für die Schmelze um den Hals des Gießbehälters gelegt ist.The invention relates to a hot chamber die casting machine Processing of magnesium melts, with a casting container with a riser hole, with a conical mouthpiece and with a nozzle attached to the mouthpiece, as well as with a induction heating device operating at medium frequency or with one at the lower limit of the radio frequency Frequency is operated, with a ring inductor in the Level the cover of the crucible for the melt around the neck of the casting container is laid.
Eine Warmkammer-Druckgießmaschine dieser Art ist aus der DE 195 43 805 A1 bekannt. Dort hat man, um eine Beheizung im Bereich des Halses des Gießbehälters zu erreichen, einen aus zwei Hälften aufgebauten Ringinduktor vorgesehen, der dann aber, da der Hals des Gießbehälters - jedenfalls im eingebauten Zustand des Gießbehälters - nur sehr schwierig zugängig ist, in aufwendiger Weise montiert und gegebenenfalls demontiert werden muß. In der Regel wird es dabei notwendig, auch den Gießbehälter zu lösen, um seinen Hals besser zugängig zu machen.A hot chamber die casting machine of this type is from DE 195 43 805 A1 known. There you have to have a heater in the area to reach the neck of the pouring can provided two halves built ring inductor, which then but, since the neck of the pouring tank - at least in the built-in Condition of the pouring container - very difficult to access is assembled and disassembled in a complex manner must become. It usually becomes necessary, too loosen the pouring container to make his neck more accessible do.
Aus der DE 195 31 161 A1 ist es bekannt, dem Mundstücksbereich des Gießbehälters und der Düse Induktoren zuzuordnen, die als außen isolierte Rohre ausgebildet und als hülsenförmige Wendel jeweils axial auf den Mundstücksbereich und die Düse aufgeschoben sind. Diese Rohre werden mit Mittelfrequenz oder mit einer an der unteren Grenze der Hochfrequenz liegenden Frequenz beaufschlagt und von Luft durchströmt, um eine Überhitzung zu vermeiden. Bei der Verwendung für Warmkammer-Druckgießmaschinen, mit denen Magnesiumschmelzen verarbeitet werden sollen, bringt eine solche Ausgestaltung den Vorteil mit sich, daß eine Berührung von Wasser, das üblicherweise zur Kühlung verwendet wird, mit Magnesium nicht auftreten kann.From DE 195 31 161 A1 it is known the mouthpiece area to assign the casting container and the nozzle to inductors, which are designed as insulated tubes and as sleeve-shaped Spiral axially on the mouthpiece area and the nozzle is pushed on. These tubes are made with medium frequency or with one at the lower limit of the radio frequency lying frequency and air flows through it to avoid overheating. When used for hot chamber die casting machines, with which magnesium melts are processed Such a configuration brings the Advantage of being in contact with water, which is usually is used for cooling, with magnesium not can occur.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, nach einer einfach montierbaren Lösung für den Ringinduktor im Bereich des Halses des Gießbehälters zu suchen, der auch so ausgestaltbar, daß auch der Ringinduktor mit Luft kühlbar ist.The present invention is based on the object an easy to install solution for the ring inductor in the area of the neck of the pouring container, which is also so configurable that the ring inductor can be cooled with air is.
Zur Lösung dieser Aufgabe wird bei einer WarmkammerDruckgießmaschine der eingangs genannten Art vorgesehen, daß der Ringinduktor aus einem biegbaren Rohr aus elastischem Material besteht, das einen einteiligen Ring bildet, der an einer Stelle offen und dort mit Anschlüssen für Energie und für durchströmende Kühlluft versehen ist.In a hot chamber die casting machine, this task is solved of the type mentioned that the ring inductor made of a flexible tube made of elastic Material that forms a one-piece ring, which is open at one point and there with connections for energy and is provided for cooling air flowing through.
Durch diese Ausgestaltung wird, wenn die Elastizität des Rohrringes so groß ist, daß der Rohrring an seiner offenen Stelle um das Maß des Durchmessers des Gießbehälters im Bereich der Tiegelabdeckung aufbiegbar ist und seitlich auf den Hals des Gießbehälters aufschiebbar ist, der große Vorteil erreicht, daß eine relativ einfache Montage möglich wird, die durchgeführt werden kann, ohne daß es notwendig ist, den Gießbehälter aus seiner Befestigung am Tiegel zu lösen.With this configuration, when the elasticity of the Pipe ring is so large that the pipe ring at its open Place around the measure of the diameter of the casting container in the area the crucible cover is bendable and laterally on the Neck of the pouring container can be pushed open, the great advantage achieved that a relatively simple assembly is possible, the can be carried out without the need for the Loosen the pouring container from its attachment to the crucible.
In Weiterbildung der Erfindung kann das Rohr dabei ein Flachrohr sein, das um eine parallel zu seinen größeren Seitenflächen verlaufende Achse gebogen ist. Dabei kann in weiterer Ausgestaltung der Erfindung eine der größeren Seitenflächen des Flachrohres mit einem Trägerband verbunden sein, wobei Trägerband und Flachrohr mit einem Isoliergewebe zur thermischen und elektrischen Isolation umgeben sein können.In a development of the invention, the tube can be a flat tube be that around a parallel to its larger side faces extending axis is bent. It can be done in another Embodiment of the invention one of the larger side surfaces of the flat tube to be connected to a carrier tape, wherein Carrier tape and flat tube with an insulating fabric for thermal and electrical insulation can be surrounded.
In Ausgestaltung der Erfindung kann dabei das Isoliergewebe aus einem Band bestehen, das um das Flachrohr und das Trägerband herumgewickelt ist.In an embodiment of the invention, the insulating fabric can consist of a band around the flat tube and the carrier band is wrapped around.
Die Erfindung ist anhand eines Ausführungsbeispieles in der Zeichnung gezeigt und wird im folgenden beschrieben. Es zeigen:
- Fig. 1
- eine schematische Schnittdarstellung des Austrittsbereiches einer Warmkammer-Druckgießmaschine nach der Erfindung,
- Fig. 2
- eine vergrößerte Darstellung eines Teilschnittes durch den im Bereich des Gießbehälterhalses der Fig. 1 angeordneten Ringinduktor,
- Fig. 3
- eine Seitenansicht des oberen Endbereiches des Gießbehälters mit dem Ringinduktor, und
- Fig. 4
- die Ansicht des Gießbehälters der Fig. 3 von unten mit dem Ringinduktor im montierten Zustand und - gestrichelt - im aufgebogenen Zustand zum Zweck der Montage.
- Fig. 1
- 2 shows a schematic sectional illustration of the outlet area of a hot chamber die casting machine according to the invention,
- Fig. 2
- 2 shows an enlarged illustration of a partial section through the ring inductor arranged in the region of the casting container neck of FIG. 1,
- Fig. 3
- a side view of the upper end portion of the casting container with the ring inductor, and
- Fig. 4
- the view of the casting container of FIG. 3 from below with the ring inductor in the assembled state and - dashed - in the bent state for the purpose of assembly.
In der Fig. 1 ist ein Teil einer Warmkammer-Druckgießmaschine
gezeigt, die zur Verarbeitung von Magnesium eingesetzt wird.
Das flüssige Magnesium befindet sich dabei bei Temperaturen
von ca. 630°C bis 680°C innerhalb des nicht näher gezeigten
Tiegels 1. In diesem Tiegel 1 ragt durch eine Abdeckung 2.ein
Gießbehälter 3 herein, der eine Steigbohrung 4 mit einem konusartig
ausgebildeten Mundstück 5 besitzt. Im Gießbehälter 3
befindet sich außerdem auch ein nicht näher gezeigter Gießkolben,
der über die Kolbenstange 6 in bekannter Weise von
oben in den Gießzylinder 7 hereingeführt ist, der sich aus
dem Tiegel 1 mit der zu vergießenden Menge des flüssigen Magnesiums
füllt, ehe der Kolben die Einfüllöffnung bei seiner
Bewegung abschließt und das flüssige Metall durch die Steigbohrung
4 nach oben drückt.In Fig. 1 is part of a hot chamber die casting machine
shown that is used to process magnesium.
The liquid magnesium is at temperatures
from approx. 630 ° C to 680 ° C within the not shown
Crucible 1. In this
In das Mundstück 5 des Gießbehältrs 3 eingesetzt ist eine Düse
8, die mit ihrem Mundstück 9 bis in den Angußbereich einer
Form 10 reicht, die nur schematisch angedeutet ist.A nozzle is inserted into the mouthpiece 5 of the
Auf den in etwa zylindrischen Ansatz 11 des Gießbehälters 3
ist ein hülsenförmiger induktiver Heizkörper 12 aufgeschoben.
Zwei weitere hülsenförmige induktive Heizkörper 13 und 14
sind auf den mittleren Bereich der Düse 8 bzw. auf den Bereich
des Mundstückes 9 der Düse 8 aufgeschoben. Das kann dadurch
geschehen, daß der Hülsenkörper 12 noch vor der Montage
der Düse 8 aufgeschoben wird, daß dann die Düse in ihre konusartige
Anschlußöffnung 5 eingesetzt wird und dann die beiden
Hülsenkörper 13 und 14 auf die Düse aufgeschoben werden.
Eine gesonderte Befestigung ist dabei in der Regel nicht notwendig,
weil die Hülsenkörper 13 und 14 wegen der leichten
Schrägstellung der Düse 8 von selbst gehalten sind und der
Hülsenkörper auf dem ebenfalls leicht schrägen Ansatz 11 auch
ohne gesonderte Befestigungsmittel hält. Alle Heizkörper 12,
13 und 14 können, da eine Befestigung fehlt, sehr leicht von
Hand verschoben werden, um auf diese Weise die optimale Temperatur
in den entsprechenden Bereichen zu erhalten.On the approximately
Der Hülsenkörper 12 ist so auf den Ansatz 11 aufgesetzt, daß
er dessen Stirnende nach außen überragt. Der Hülsenkörper 12
überragt dabei auch eine Mutter 15, die zur späteren Demontage
der Düse 8 auf diese aufgeschraubt ist, sowie eine Überwachungseinrichtung,
die an der Innenseite des Hülsenkörpers 12
in der Form eines mit einer Kontaktschleife versehenen Ringes
16 angeordnet ist. Zum Mundstück 9 der Düse 8 hin liegt vor
dem Stirnende des Hülsenkörpers 12 ein Schutzblech 17, das
unerwünschtes Eindringen von eventuell nach hinten spritzender
Magnesiumschmelze verhindern soll.The
Die Überwachungseinrichtung 16 dient dazu, Magnesiumausblühungen
in dem Hohlraum 18 zwischem dem Hülsenkörper 12 und
der Düse 8 zu erfassen, die beispielsweise durch eine Undichtheit
zwischen dem Ansatz 11 und der Düse 8 oder auch
durch Undichtheiten im Bereich des Halses 19 des Gießbehälters3
und durch dadurch in den Bereich innerhalb des Hülsenkörpers
12 gelangendes Magnesium auftrten können.The
Im Bereich des Halses 19 des Gießbehälters 3 ist ein Ringinduktor
20 aufgesetzt und zwar auch etwa im Bereich der Tiegelabdeckung
2, die in nicht näher gezeigter Weise auch gegenüber
dem Gießbehälter 3 abgedichtet ist.In the area of the
Die Fig. 2 zeigt, daß der Ringinduktor 20 mit einem Flachrohr
21 ausgerüstet ist, das mit einer seiner größeren Seitenflächen
mit einem metallischen Trägerband 22 verlötet ist. Sowohl
das Flachrohr 21 als auch das Trägerband 22 bestehen dabei
aus einem magnetisch wirksamen Material, beispielsweise
aus einer Kupferlegierung oder auch aus Edelstahl. Das Trägerband
22 und das Flachrohr 21 sind dabei von einer thermisch
und elektrisch wirksamen Isolierung 23 umgeben, die
beim Ausführungsbeispiel aus einem bandförmigen Isoliergewebe
23a besteht, das um das Flachrohr 21 und das Trägerband 22
wendelförmig herumgewickelt ist. Das Flachrohr 21 und das
Trägerband 22 sind um eine parallel zu den größeren Seiten
des Flachrohres 21 verlaufenden Achse 30 gebogen, die im angebauten
Zustand, siehe Fig. 3 und 4 - mit der Mittelachse
des Halses 19 des Gießbehälters 13 zusammenfällt.Fig. 2 shows that the
Die Fig. 3 läßt erkennen, daß der Ringinduktor 20 um einen
Abschnitt des Halses 19 des Gießbehälters 3 herumgelegt ist
und zwar so, daß er mit einer der größeren Seitenflächen des
Flachrohres 21 und zwar mit jener, die nicht mit dem Trägerband
22 verbunden ist, an der Außenfläche des Halses 19 des
Gießbehälters 3 anliegt.Fig. 3 shows that the
Die Fig. 4 läßt zudem erkennen, daß der Ringinduktor 20 von
dem Flachrohr 21 und dem Trägerrohr 22 als ein einteiliger
Ring ausgebildet ist, der an der Stelle 24 jedoch offen ist
und dort jeweils mit Anschlüssen 25 und 25a für die Zu- und
Abfuhr der elektrischen Energie, beim Ausführungsbeispiel einer
Induktionsspannung mit Mittelfrequenz oder mit einer an
der unteren Grenze der Hochfrequenz liegenden Frequenz, versehen
ist. Die Anschlüsse 25 und 25a weisen aber auch in
nicht näher dargestellter Weise jeweils einen Anschlußstutzen
für die Zufuhr von Kühlluft auf, die durch das Flachrohr 21
zum Zweck der Kühlung strömen kann und an einer in etwa diametral
den Anschlüssen 25 und 25a gegenüberliegenden Stelle
durch einen Abluftstutzen 26 das Flachrohr wieder verlassen
kann. Die Kühlluft wird daher - ausgehend von den Anschlußstutzen
25 und 25a - jeweils etwa um die Hälfte des Ringinduktors
20 herumgeführt und tritt dann durch den Stutzen 26
wieder aus.Fig. 4 also shows that the
Das Flachrohr 21 und das Trägerband 22 bestehen, wie vorher
schon angedeutet wurde, aus einem elastischen Material, das
eine Aufbiegung des Ringinduktors 20 in seine Stellung 20'
erlaubt, die in der Fig. 4 gestrichelt angedeutet ist. Die
Elastizität sowohl des Flachrohres 21 als auch.des Trägerbandes
22 muß daher groß genug sein, um eine solche Aufbiegung
zu erlauben. Es hat sich gezeigt, daß es in dieser Hinsicht
keinerlei Schwierigkeiten gibt. Wenn der Ringinduktor 20 in
seine Stellung 20' nach Fig. 4 aufgebogen ist, dann läßt er
sich in sehr einfacher Weise seitlich auf den Hals 19 des Gießbehälters
aufschieben oder auch wieder von diesem entfernen.
Er nimmt aufgrund seiner Elastizität die durchgezogene
Stellung nach Fig. 4 ein, wenn die Aufspreizkräfte wegfallen. The
Die endgültige Befestigung läßt sich dann sehr einfach, beispielsweise
durch eine Befestigungsschraube, vornehmen. Dieser
so ausgestaltete Ringinduktor kann dann mit der gleichen
Energie wie auch die Induktoren 12 und 13 bzw. 14 versorgt
werden und an die gleiche Kühlluftquelle angeschlossen werden.
Er weist den großen Vorteil einer sehr einfachen Montage
und Demontage auf, die sich daher ohne Schwierigkeiten auch
im eingebauten Zustand des Gießbehälters durchführen läßt.The final attachment can then be very simple, for example
with a fastening screw. This
thus designed ring inductor can then be used with the same
Energy as well as the
Die Fig. 4 läßt auch erkennen, daß die Anschlüsse 25 und 25a
im aufgebogenen Zustand, d.h. also in ihrer Lage 25' und
25a', einen Abstand a zueinander aufweisen, der dem Durchmesser
d des Halses 19 des Gießbehälters 3 entspricht, um die
Montage oder Demontage durchführen zu können.4 also shows that the
Claims (6)
- A hot-chamber pressure-diecasting machine for processing magnesium melts, comprising a casting vessel (3) having a rising bore (4), comprising a cone-like mouthpiece (5) and a nozzle (8) attached to the mouthpiece, and comprising an inductively operating heating device that is operated at medium frequency or at a frequency lying at the lower limit of high frequency, a ring inductor (20) being placed around the neck of the casting vessel (3) in the plane of the cover (2) of the crucible (1),
characterised in that the ring inductor (20) consists of a flexible tube (21) of elastic material forming a one-piece ring that is open at one point (24) and is provided there with connections (25, 25a) for energy and for cooling air flowing through it. - A hot-chamber pressure-diecasting machine according to claim 1, characterised in that the elasticity of the tube ring (20) is so great that it can be bent open at the open point (24) by at least the size (a) of the diameter (d) of the casting vessel (3) in the region of the crucible cover (2) and can be pushed sideways onto the neck (19) of the casting vessel (3).
- A hot-chamber pressure-diecasting machine according to claim 1, characterised in that the tube is a flat tube (21) that is bent about an axis (30) extending parallel to its larger side faces.
- A hot-chamber pressure-diecasting machine according to claim 3, characterised in that one of the larger side faces of the flat tube (21) is joined to a carrier band (22).
- A hot-chamber pressure-diecasting machine according to claim 4, characterised in that the carrier band (22) and the flat tube (21) are surrounded by an insulating fabric (23) for thermal and electrical insulation.
- A hot-chamber pressure-diecasting machine according to claim 5, characterised in that the insulating fabric consists of a band (23a) which is wrapped helically around the flat tube (21) and the carrier band (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853189 | 1998-11-18 | ||
| DE19853189A DE19853189C1 (en) | 1998-11-18 | 1998-11-18 | Hot chamber die casting machine has a ring inductor consisting of a bent pipe made of elastic material forming a one-part ring open at one point with connections for energy and for flowing cooling air |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1002601A2 EP1002601A2 (en) | 2000-05-24 |
| EP1002601A3 EP1002601A3 (en) | 2001-03-07 |
| EP1002601B1 true EP1002601B1 (en) | 2004-04-14 |
Family
ID=7888222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99120823A Expired - Lifetime EP1002601B1 (en) | 1998-11-18 | 1999-10-22 | Hot chamber die casting machine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6435260B1 (en) |
| EP (1) | EP1002601B1 (en) |
| JP (1) | JP2000153351A (en) |
| AT (1) | ATE264151T1 (en) |
| CZ (1) | CZ295241B6 (en) |
| DE (2) | DE19853189C1 (en) |
| ES (1) | ES2215354T3 (en) |
| PL (1) | PL191429B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8884200B2 (en) * | 2008-09-28 | 2014-11-11 | Inductotherm Corp. | Electromagnetically shielded inductor assembly |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755884A (en) * | 1971-11-19 | 1973-09-04 | Olin Corp | Process for scarfing weld beads |
| US3777097A (en) * | 1973-03-08 | 1973-12-04 | Park Ohio Industries Inc | Induction heating device for ring gears |
| JPS6151794A (en) * | 1984-08-20 | 1986-03-14 | 電気興業株式会社 | Induction heating coil |
| FR2613647B1 (en) * | 1987-04-13 | 1990-11-16 | Alsthom | ELECTROMAGNETIC MIXING OF LIQUID METAL FOR CONTINUOUS CASTING LINE |
| JP3049648B2 (en) * | 1993-12-13 | 2000-06-05 | 日立金属株式会社 | Pressure molding method and pressure molding machine |
| US5872352A (en) * | 1995-03-22 | 1999-02-16 | Honda Ginken Kogyo Kabushiki Kaisha | Swingable induction heating chamber for melting ingot for metal casting |
| DE19543805A1 (en) | 1995-08-24 | 1997-05-28 | Frech Oskar Gmbh & Co | Hot chamber die casting machine |
| DE19531161C2 (en) * | 1995-08-24 | 1999-05-20 | Frech Oskar Gmbh & Co | Hot chamber die casting machine |
| DE19631161A1 (en) | 1996-08-01 | 1998-02-12 | Bergmann Thorald | Time of flight time of flight mass spectrometer with differentially pumped collision cell |
-
1998
- 1998-11-18 DE DE19853189A patent/DE19853189C1/en not_active Expired - Fee Related
-
1999
- 1999-10-21 US US09/422,335 patent/US6435260B1/en not_active Expired - Lifetime
- 1999-10-22 DE DE59909162T patent/DE59909162D1/en not_active Expired - Lifetime
- 1999-10-22 ES ES99120823T patent/ES2215354T3/en not_active Expired - Lifetime
- 1999-10-22 AT AT99120823T patent/ATE264151T1/en active
- 1999-10-22 EP EP99120823A patent/EP1002601B1/en not_active Expired - Lifetime
- 1999-11-17 PL PL336608A patent/PL191429B1/en unknown
- 1999-11-18 CZ CZ19994098A patent/CZ295241B6/en not_active IP Right Cessation
- 1999-11-18 JP JP11328082A patent/JP2000153351A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE19853189C1 (en) | 2000-04-13 |
| JP2000153351A (en) | 2000-06-06 |
| ATE264151T1 (en) | 2004-04-15 |
| PL336608A1 (en) | 2000-05-22 |
| EP1002601A3 (en) | 2001-03-07 |
| CZ9904098A3 (en) | 2001-05-16 |
| EP1002601A2 (en) | 2000-05-24 |
| DE59909162D1 (en) | 2004-05-19 |
| US6435260B1 (en) | 2002-08-20 |
| ES2215354T3 (en) | 2004-10-01 |
| CZ295241B6 (en) | 2005-06-15 |
| PL191429B1 (en) | 2006-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0761345B1 (en) | Hot chamber die casting machine | |
| DE1533886B2 (en) | Device for injecting a fluid into a container containing a molten metal | |
| DE60118194T2 (en) | THERMALLY BALANCED HOT CHANNEL NOZZLE | |
| EP0379647A2 (en) | Refractory nozzle and induction coil therefor | |
| DE2008311A1 (en) | ||
| DE2713510B2 (en) | Exhaust valve of a reciprocating internal combustion engine | |
| EP1825939A2 (en) | Heatable dosage device for a warm chamber die casting machine | |
| DE2739483B2 (en) | Electrode for electric arc furnace | |
| DE3140159A1 (en) | METHOD AND DEVICE FOR CONVEYING MOLTEN METAL | |
| DE2744435A1 (en) | FURNISHING WITH A WATERING PAN | |
| EP0191023B1 (en) | Tubular quartz-glass element with a flange | |
| EP1002601B1 (en) | Hot chamber die casting machine | |
| DD236636A5 (en) | ELECTRICAL CONNECTING DEVICE FOR INSERTING IN THE WALL OF A METALLURGICAL CONTAINER AND FOR CONTACTING WITH MELTING METAL | |
| DE1521195B2 (en) | Method and device for continuously casting around a metal strand with a thick layer of a metal with a lower melting point | |
| EP0959997A2 (en) | Method, device and closure member for casting on liquid casts | |
| EP0367800B1 (en) | Process and outlet sleeve for introducing gas into the outlet of a molten bath, in particular of a receptacle containing molten steel | |
| DE3903210C1 (en) | ||
| DE2744311A1 (en) | INDUCTIONALLY HEATED WATER PAN | |
| EP0285688B1 (en) | Heating for the suction tube of a vacuum die-casting machine | |
| EP0415170B1 (en) | Electromagnetic stirrer in a continuous casting installation | |
| DE4439872A1 (en) | Nozzle unit for hot chamber die-casting machine | |
| DE69011436T2 (en) | Device for preheating a pouring nozzle for molten metal and metal casting device equipped with this device. | |
| DE723659C (en) | Welding pipe connection | |
| DE3105129A1 (en) | EQUIPMENT OF TAPE HOLE OF A MELTING FURNACE FOR NON-METAL MATERIALS | |
| DE681382C (en) | Device for the distribution of gases and liquids in contact masses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| 17P | Request for examination filed |
Effective date: 20010720 |
|
| AKX | Designation fees paid |
Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| 17Q | First examination report despatched |
Effective date: 20030206 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040414 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040414 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040414 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040414 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
| REF | Corresponds to: |
Ref document number: 59909162 Country of ref document: DE Date of ref document: 20040519 Kind code of ref document: P |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: ZIMMERLI, WAGNER & PARTNER AG |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040714 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040714 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20040714 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2215354 Country of ref document: ES Kind code of ref document: T3 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041022 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041031 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041031 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed |
Effective date: 20050117 |
|
| BERE | Be: lapsed |
Owner name: OSKAR *FRECH G.M.B.H. & CO. Effective date: 20041031 |
|
| BERE | Be: lapsed |
Owner name: OSKAR *FRECH G.M.B.H. & CO. Effective date: 20041031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040914 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PFA Owner name: OSKAR FRECH GMBH & CO. Free format text: OSKAR FRECH GMBH & CO.#SCHORNDORFER STRASSE 32#73614 SCHORNDORF (DE) -TRANSFER TO- OSKAR FRECH GMBH & CO.#SCHORNDORFER STRASSE 32#73614 SCHORNDORF (DE) |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: WAGNER PATENT AG, CH |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20151026 Year of fee payment: 17 Ref country code: DE Payment date: 20151028 Year of fee payment: 17 Ref country code: CH Payment date: 20151026 Year of fee payment: 17 Ref country code: GB Payment date: 20151026 Year of fee payment: 17 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20151026 Year of fee payment: 17 Ref country code: ES Payment date: 20151023 Year of fee payment: 17 Ref country code: FR Payment date: 20151026 Year of fee payment: 17 Ref country code: AT Payment date: 20151022 Year of fee payment: 17 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59909162 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 264151 Country of ref document: AT Kind code of ref document: T Effective date: 20161022 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20161022 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161022 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170503 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161031 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161102 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161031 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161022 Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161023 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161022 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20040414 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20181119 |
|
| RIC2 | Information provided on ipc code assigned after grant |
Ipc: B22D 17/02 20060101AFI20000301BHEP |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20161023 |