DE486525C - Process for degassing light metals, especially aluminum and aluminum alloys - Google Patents

Process for degassing light metals, especially aluminum and aluminum alloys

Info

Publication number
DE486525C
DE486525C DEV24022D DEV0024022D DE486525C DE 486525 C DE486525 C DE 486525C DE V24022 D DEV24022 D DE V24022D DE V0024022 D DEV0024022 D DE V0024022D DE 486525 C DE486525 C DE 486525C
Authority
DE
Germany
Prior art keywords
aluminum
light metals
degassing
atmosphere
aluminum alloys
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
Application number
DEV24022D
Other languages
German (de)
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
Publication date
Priority to DEV24022D priority Critical patent/DE486525C/en
Application granted granted Critical
Publication of DE486525C publication Critical patent/DE486525C/en
Expired legal-status Critical Current

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
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/064—Obtaining aluminium refining using inert or reactive gases
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/0084—Obtaining aluminium melting and handling molten aluminium

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)

Description

Verfahren zum Entgasen von Leichtmetallen, insbesondere von Aluminium und Aluminiumlegierungen Leichtmetalle kännen bekanntlich im allgemeinen nicht unmittelbar- nach der Herstellung zu ,einwandfreien Produkten vergossen werden, weil sie in hohem Maße Gaseinschlüsse enthalten. Um .diese heichtm.etalle, insbesondere also Aluminium und seine Legierungen, zu entgasen, läßt man die Schmälze im Ofen, und zwar gewöhnlich Elektroöfen, abstehen. Die Zeitdauer, die zu einer einigermaßen befriedigenden Entgasung notwendig ist, beträgt etwa 8 bis i o Stunden,. je nach Grüße des Einssatzes.Process for degassing light metals, especially aluminum and aluminum alloys As is generally known, light metals cannot After manufacturing, flawless products are potted because they are in high Dimensions of gas inclusions included. To .these heichtm.etalle, especially aluminum and its alloys, to degas, are left in the furnace, and usually Electric ovens, stand out. The amount of time it takes to achieve a reasonably satisfactory degassing is necessary is about 8 to 10 hours. depending on the greetings of the mission.

Aber diese Form des En t@ga@sens führt selbst bei der aai#gen Zeit des Abstehens nicht zu einer .den. praktischen. Bedürfnis enntsprechendIen Gasbefreiung. -Diesen ' Manlg6l beseitigt die »vorliegende Erfindung tladurch, daß die über ,dem schmeizfl&sigen Metallbad liegende Atmosphäre ohne Zufuhr vom. Frischluft und ohne wesentliche Änderung von Temperatur und Druck der Schmelze !und der Atmosphäre, vorteilhaft im Kreislauf, in Bewegung gehalten wird.But this form of en t @ ga @ sens leads even with the usual time of refraining from becoming a .den. practical. Gas release according to need. The present invention eliminates this problem by the fact that the over, the molten metal bath atmosphere without supply from. Fresh air and without significant change in temperature and pressure of the melt! and the atmosphere, advantageous in the circulation, is kept in motion.

In der 'Zeichnung ist eine Ausführungsform des vorliegenden Verfahrens beispielsweise veransrhaulkht. Es bezeichnet a den Ofen, we7.cher mit einer Chargierungstür b und einer Heizspirale c versehen ist. Oberhalb .das den Einsatz aufnehmenden Herdes ist ein Umlaufkanal e vorgesehen, in, welchen ein Ventilator eingeschaltet ,ist. Unter Vermitfung des Ventilators -wird de oberhalb des Bades befindliche Atmosphäre durch den Kanal e hindurch im Kreislauf gehalten.In the drawing is an embodiment of the present method for example veransrhaulkht. It denotes the furnace, the other with a charging door b and a heating coil c is provided. Above .the cooker that is to be used a circulation channel e is provided in which a fan is switched on. With the help of the fan, the atmosphere above the bath becomes kept in circulation through channel e.

}Die Bewegung der Atmosphäre kannnatürlich auch im ,anderer Weise erfolgen, ebenso wie der Ventilator duzch irgendein anderes Lufttranslpartelenent, z. B. eine Pumpe, ersetzt werden kann..} The movement of the atmosphere can of course also in a different way just like the ventilator by any other air translator, z. B. a pump, can be replaced.

Claims (1)

PATENTANSPRUCH: Verfahren zum Entgasen von Leichtmetallen, insbesondere von Aluminium und Aluminiumlegierungen, dadurch gekennzeichnet, daß die über dem. schmelzflüssigen Metallbad liegende Atmosphäre ohne Zufuhr von Frischluft und ahne wesentliche Änderung von Temperatur und Druck der Schmelze und- Atmosphäre in Bewegung, und zwar vorteilhaft im Kreislauf, gehalten wird. PATENT CLAIM: A method for degassing light metals, in particular aluminum and aluminum alloys, characterized in that the above. molten metal bath lying atmosphere without supply of fresh air and without a significant change in temperature and pressure of the melt and atmosphere in motion, namely advantageously in the circuit, is kept.
DEV24022D Process for degassing light metals, especially aluminum and aluminum alloys Expired DE486525C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV24022D DE486525C (en) Process for degassing light metals, especially aluminum and aluminum alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV24022D DE486525C (en) Process for degassing light metals, especially aluminum and aluminum alloys

Publications (1)

Publication Number Publication Date
DE486525C true DE486525C (en) 1929-11-22

Family

ID=7580902

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV24022D Expired DE486525C (en) Process for degassing light metals, especially aluminum and aluminum alloys

Country Status (1)

Country Link
DE (1) DE486525C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161339A2 (en) * 1983-12-24 1985-11-21 Balzer & Co., oHG Furnace and temperature-keeping for molten metal baths
EP0216393A1 (en) * 1985-09-27 1987-04-01 Showa Aluminum Corporation Process for treating molten aluminum to remove hydrogen gas and non-metallic inclusions therefrom
WO2008103402A2 (en) * 2007-02-23 2008-08-28 Alotech Ltd.Llc Quiescent transfer of melts
US8303890B2 (en) 2007-02-23 2012-11-06 Alotech Ltd. Llc Integrated quiescent processing of melts

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161339A2 (en) * 1983-12-24 1985-11-21 Balzer & Co., oHG Furnace and temperature-keeping for molten metal baths
EP0161339A3 (en) * 1983-12-24 1987-02-04 Balzer & Co., oHG Furnace and temperature-keeping for molten metal baths
EP0216393A1 (en) * 1985-09-27 1987-04-01 Showa Aluminum Corporation Process for treating molten aluminum to remove hydrogen gas and non-metallic inclusions therefrom
WO2008103402A2 (en) * 2007-02-23 2008-08-28 Alotech Ltd.Llc Quiescent transfer of melts
WO2008103402A3 (en) * 2007-02-23 2008-10-16 Alotech Ltd Llc Quiescent transfer of melts
US8303890B2 (en) 2007-02-23 2012-11-06 Alotech Ltd. Llc Integrated quiescent processing of melts

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