DE1057291B - Process and device for arc melting of metals in a continuous casting mold in twin design - Google Patents
Process and device for arc melting of metals in a continuous casting mold in twin designInfo
- Publication number
- DE1057291B DE1057291B DED20436A DED0020436A DE1057291B DE 1057291 B DE1057291 B DE 1057291B DE D20436 A DED20436 A DE D20436A DE D0020436 A DED0020436 A DE D0020436A DE 1057291 B DE1057291 B DE 1057291B
- Authority
- DE
- Germany
- Prior art keywords
- mold
- strand
- molds
- melt
- metal
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1295—Refining, melting, remelting, working up of titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0401—Moulds provided with a feed head
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
DEUTSCHESGERMAN
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Schmelzen und Umschmelzen von metallischen Werkstoffen mit Hilfe eines Lichtbogens in Schutzgas- und insbesondere in Vakuumöfeni. Das neue Verfahren ist besonders geeignet für hochschmelzende Metalle, wie Titan, Zirkon und deren Legierungen.The invention relates to a method and a device for melting and remelting metallic materials Materials with the help of an electric arc in inert gas and especially in vacuum furnaces. The new The process is particularly suitable for refractory metals such as titanium, zircon and their alloys.
Beim Lichtbogenschmelzen von Metallen ist man mehr und mehr zu einer kontinuierlichen Schmelzweise übergegangen, bei der das Metall am zweckmäßigsten über die Lichtbogenelektrode, d. h. als sogenannte selbstverzehrende Elektrode, der Schmelzstelle zugeführt wird. Voraussetzung für die Anwen^ dung dieser sehr zweckmäßigen Arbeitsweise ist jedoch, daß das zu schmelzende Metall sich in entsprechende Formen, sei es durch Verschmelzen oder Pressen, überführen läßt, was z. B. bei als Blechstücke, Barrenabhiebe oder Schwammetall anfallendem Material schwierig oder sogar unmöglich sein kann. Aus diesem Rohmaterial lassen, sich daher häufig keinerlei Formen gewinnen, die als selbstverzehrende Elektrode eingesetzt werden könnten. Aber auch bei Reinmetallen oder Legierungen, die Uimgeschmolzem werden müssen, benötigt man zur Herstellung der selbstverzehrenden Elektroden stets entsprechende Kokillen in· mehreren Größen, um für die erste und die zweite Schmelzung die Elektroden in entsprechenden Größen gießen zu können.When it comes to arc melting metals, one is more and more into a continuous mode of melting passed in which the metal is most conveniently via the arc electrode, i. H. as so-called consumable electrode that is fed to the melting point. Requirement for the application This very convenient method of working is, however, that the metal to be melted is in appropriate Forms, be it by fusing or pressing, can be transferred what z. B. with as sheet metal pieces, Cutting off ingots or sponge metal can be difficult or even impossible. the end This raw material can therefore often not be used as a self-consuming electrode could be used. But also with pure metals or alloys that are unmelted must, you always need corresponding molds in several sizes in order to have the electrodes in corresponding sizes for the first and the second melting to be able to pour.
Es ist ein Verfahren zum kontinuierlichen Schmelzen von Metallen mit Hilfe des elektrischen, Lichtbogens bekannt, nach dem der zu schmelzende Einsatz laufend von unten in Strangform dem Lichtbogen entgegen zugeführt wird. Dadurch sollen die bei der Einführung des festen Gutes von oben in das Sdhmelzgefäß auftretenden Schwankungen des Lichtbogenwiderstandes vermieden werden. Das Metall wird nach dem Niederschmelzen aus dem Sumpf durch ein seitliches Abflußrohr laufend abgezogen. Das Rohr, in dem der Strang von unten nach oben geführt wird, und das Abflußrohr sind dicht nebeneinander und im wesentlichen senkrecht angeordnet; sie können als oben, und unten offene Kokillen bezeichnet werden. Bei diesem Verfahren fällt das Scttmelzgut, das flüssig abgeführt werden muß, um die Kokille verfassen zu können, ungeformt an, d. h., es bedarf zu seiner Weiterverarbeitung noch der zusätzlichen Formgebung.It is a process for the continuous melting of metals with the help of the electric arc known, after which the insert to be melted continuously from below in the form of a strand towards the arc is fed. As a result, when the solid material is introduced from above into the collecting vessel occurring fluctuations in the arc resistance can be avoided. The metal is after the melting down continuously withdrawn from the sump through a side drain pipe. The pipe, in which the strand is led from bottom to top, and the drainpipe are close together and in arranged essentially vertically; they can be referred to as molds that are open at the top and bottom. at This process falls to the Sctmelzgut, which must be removed in liquid form in order to create the mold can, unshaped, d. i.e., it needs to be further processed nor the additional shape.
Auch das Stranggießen mit Abzug eines erstarrten Stranges als solches wird als bekannt vorausgesetzt.Continuous casting with the withdrawal of a solidified strand as such is also assumed to be known.
Demgegenüber betrifft die Erfindung ein Verfahren zum Schmelzen von metallischen Werkstoffen mit Hilfe eines Lichtbogens in Schutzgasatmosphäre oder im Vakuum, in einer unten und oben offenen, gekühlten StranggußkokiHe in Zwillingsausführung, die aus zwei einzelnen dicht nebeneinander senkrecht stehenden Kokillen besteht, wobei die laufende Zuführung Verfahren und VorrichtungIn contrast, the invention relates to a method for melting metallic materials with Using an arc in a protective gas atmosphere or in a vacuum, in a cooled one that is open at the bottom and top Continuously cast cociHe in twin design, consisting of consists of two individual molds standing close together perpendicularly, with the current supply Method and device
zum Lichtbogenschmelzen von Metallenfor arc melting of metals
in einer Stranggußkokillein a continuous casting mold
in Zwillingsausführungin twin design
Anmelder:Applicant:
Deutsche Gold- und Silber-ScheideanstaltGerman gold and silver refinery
vormals Roessler, Frankfurt/M., Weißfrauenstr. 9formerly Roessler, Frankfurt / M., Weißfrauenstr. 9
Dr. Alfred Boettcher, Frankfurt/M., ist als Erfinder genannt wordenDr. Alfred Boettcher, Frankfurt / M., Has been named as the inventor
des zu schmelzenden Metalls in Form eines Stranges durch die untere Öffnung der einen Kokille erfolgt.of the metal to be melted takes place in the form of a strand through the lower opening of a mold.
Das neue Verfahren ist. erfindttngsgemäß dadurch gekennzeichnet, daß das geschmolzene Metall als erstarrter Strang durch die untere Öffnung der anderen. Kokille parallel zum zugeführten Strang kontinuierlich nach unten abgezogen wird.The new procedure is. characterized according to the invention, that the molten metal as a solidified strand through the lower opening of the other. The mold is continuously withdrawn downwards parallel to the strand supplied.
In den zahlreichen Fällen, bei denen es sich für die Gewinnung reiner Metalle, z. B. Titan, Zirkon, oder anderer nuclearreiner Werkstoffe, darum handelt, mehrfach umzuschmelzen,- erbringt das Verfahren gemäß der Erfindung einen wesentlichen Fortschritt, denn es erlaubt, durch einfache Umkehr der Bewegungsrichtung der Stränge das Metall beliebig oft dfer Einwirkung des Lichtbogens auszusetzen und es so einer Vielzahl von Schmelzvorgängen zu unterwerfen, ehe es endgültig als Strang aus der Kokille entfernt wird.In the numerous cases where the Extraction of pure metals, e.g. B. titanium, zirconium, or other nuclear pure materials, to be remelted several times, - the procedure according to the invention a significant advance, because it allows, by simply reversing the direction of movement of the strands to expose the metal as often as desired to the action of the arc and so subject to a multitude of melting processes before it is finally removed as a strand from the mold will.
Nach einer bevorzugten Arbeitsweise hält man die über dem zuführendem und dem abziehenden. Strang stehenden Metallschmelzen, im wesentlichen getrennt, indem man, entweder eine gemeinsame Kokille mit Zwischenwand oder zwei dicht nebeneinander liegende Kokillen anwendet, wobei die Kokillenräume der gemeinsamen Kokille oder die beiden einzelnen, dicht nebeneinanderliegenden Kokillen durch an. sich bekannte Mittel, wie Kanäle, Aussparungen oder Bohrungen in der Kokille und den· Zwischenwänden miteinander in Verbindung stehen. Auf diese Weise kann das geschmolzene Metall, das ohnehin unter der Eiil·- wirkung des Lichtbogens und gegebenenfalls eines magnetischen Feldes, in lebhafter Bewegung steht, vonAccording to a preferred mode of operation, the one holds the above the supplying and the withdrawing. strand standing molten metal, essentially separated by one, either with a common mold Partition wall or two closely spaced molds are used, with the mold spaces being common Mold or the two individual molds lying close together. confessed Means, such as channels, recesses or bores in the mold and the partition walls with one another stay in contact. In this way the molten metal, which is already under the egg - effect of the arc and possibly a magnetic field, is in lively motion, of
90S 510/22890S 510/228
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED20436A DE1057291B (en) | 1955-05-12 | 1955-05-12 | Process and device for arc melting of metals in a continuous casting mold in twin design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED20436A DE1057291B (en) | 1955-05-12 | 1955-05-12 | Process and device for arc melting of metals in a continuous casting mold in twin design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1057291B true DE1057291B (en) | 1959-05-14 |
Family
ID=7036728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DED20436A Pending DE1057291B (en) | 1955-05-12 | 1955-05-12 | Process and device for arc melting of metals in a continuous casting mold in twin design |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1057291B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3610319A (en) * | 1968-02-12 | 1971-10-05 | Boehler & Co Ag Geb | Apparatus for the production of hollow ingots of metal by electric slag refining |
| US3771586A (en) * | 1972-02-22 | 1973-11-13 | United Aircraft Corp | Apparatus for continuous casting of directionally solidified articles |
| US3782445A (en) * | 1971-09-07 | 1974-01-01 | Consarc Corp | Method of casting a plurality of ingots in a consumable electrode furnace |
| EP0095298A1 (en) * | 1982-05-24 | 1983-11-30 | Energy Conversion Devices, Inc. | Casting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE44511A (en) | 1886-11-22 | L. grabau in Hannover, Höltystr. 15a | Process and apparatus for melting or reduction by means of an electric arc, if desired, with the production of alloys | |
| AT18611B (en) * | 1903-01-19 | 1904-12-10 | Siemens Ag | Process for the production of homogeneous bodies from tantalum metal or other difficult-to-melt metals. |
| AT32291B (en) * | 1906-03-26 | 1908-03-26 | Siemens Ag | Process for the production of homogeneous bodies from tantalum metal or other difficult-to-melt metals. |
| GB312063A (en) * | 1928-05-18 | 1930-06-05 | Krupp Ag | Improvements in electric devices for heating a metal melt within a ladle |
| US2380238A (en) * | 1944-01-21 | 1945-07-10 | Kellogg M W Co | Method and apparatus for producing cast metal bodies |
| US2380109A (en) * | 1943-07-29 | 1945-07-10 | Kellogg M W Co | Method and apparatus for casting metal bodies |
-
1955
- 1955-05-12 DE DED20436A patent/DE1057291B/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE44511A (en) | 1886-11-22 | L. grabau in Hannover, Höltystr. 15a | Process and apparatus for melting or reduction by means of an electric arc, if desired, with the production of alloys | |
| AT18611B (en) * | 1903-01-19 | 1904-12-10 | Siemens Ag | Process for the production of homogeneous bodies from tantalum metal or other difficult-to-melt metals. |
| AT32291B (en) * | 1906-03-26 | 1908-03-26 | Siemens Ag | Process for the production of homogeneous bodies from tantalum metal or other difficult-to-melt metals. |
| GB312063A (en) * | 1928-05-18 | 1930-06-05 | Krupp Ag | Improvements in electric devices for heating a metal melt within a ladle |
| US2380109A (en) * | 1943-07-29 | 1945-07-10 | Kellogg M W Co | Method and apparatus for casting metal bodies |
| US2380238A (en) * | 1944-01-21 | 1945-07-10 | Kellogg M W Co | Method and apparatus for producing cast metal bodies |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3610319A (en) * | 1968-02-12 | 1971-10-05 | Boehler & Co Ag Geb | Apparatus for the production of hollow ingots of metal by electric slag refining |
| US3782445A (en) * | 1971-09-07 | 1974-01-01 | Consarc Corp | Method of casting a plurality of ingots in a consumable electrode furnace |
| US3771586A (en) * | 1972-02-22 | 1973-11-13 | United Aircraft Corp | Apparatus for continuous casting of directionally solidified articles |
| EP0095298A1 (en) * | 1982-05-24 | 1983-11-30 | Energy Conversion Devices, Inc. | Casting |
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