EP0375620A1 - Procédé et dispositif pour la coulée électromagnétique de métaux - Google Patents

Procédé et dispositif pour la coulée électromagnétique de métaux Download PDF

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Publication number
EP0375620A1
EP0375620A1 EP89810960A EP89810960A EP0375620A1 EP 0375620 A1 EP0375620 A1 EP 0375620A1 EP 89810960 A EP89810960 A EP 89810960A EP 89810960 A EP89810960 A EP 89810960A EP 0375620 A1 EP0375620 A1 EP 0375620A1
Authority
EP
European Patent Office
Prior art keywords
ingot
agitator
longitudinal axis
inlet system
bar
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.)
Granted
Application number
EP89810960A
Other languages
German (de)
English (en)
Other versions
EP0375620B1 (fr
Inventor
Jean-Claude Weber
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.)
3A Composites International AG
Original Assignee
Alusuisse Lonza Services Ltd
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 Alusuisse Lonza Services Ltd filed Critical Alusuisse Lonza Services Ltd
Priority to AT89810960T priority Critical patent/ATE88120T1/de
Publication of EP0375620A1 publication Critical patent/EP0375620A1/fr
Application granted granted Critical
Publication of EP0375620B1 publication Critical patent/EP0375620B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/01—Continuous casting of metals, i.e. casting in indefinite lengths without moulds, e.g. on molten surfaces
    • B22D11/015—Continuous casting of metals, i.e. casting in indefinite lengths without moulds, e.g. on molten surfaces using magnetic field for conformation, i.e. the metal is not in contact with a mould

Definitions

  • the invention relates to a method for the vertical electromagnetic casting of round or hollow round bars, in particular of aluminum and aluminum alloys.
  • An apparatus for performing the method is also within the scope of the invention.
  • the inventor has set itself the goal of creating a method and a suitable device with which a more uniform metal supply and cooling can be achieved.
  • the object is achieved in that the ingot rotates about its longitudinal axis during the casting process. This symmetrizes the metal feed and the strand cooling.
  • the method according to the invention is therefore suitable for the electromagnetic casting of large-sized bars.
  • the geometric tolerances for these cast products are also better.
  • the cell structure is more uniform over the bar cross section.
  • the speed of the rotating start-up floor is preferably in the range between 0.1 and 200 Hz.
  • the speed is dependent on the application and the bar format. Low to medium speeds are used if shape consistency and uniform cooling of the ingot as well as a uniform cell structure are to be achieved. Medium to high speeds are also particularly suitable for stirring in additives such as SiC fibers.
  • liquid part of the ingot can be stirred using a stationary agitator that is firmly connected to the metal inlet system.
  • the object is achieved by means of an electromagnetic mold with a metal infeed system and start-up base, the start-up base being rotatably mounted about the longitudinal axis of the bar.
  • a stationary agitator immersed in the liquid part of the bar can be attached to the metal inlet system.
  • An agitator can consist, for example, of a circular plate with teeth.
  • the agitator consists of at least one plate arranged vertically and symmetrically to the longitudinal axis of the ingot.
  • a stationary agitator 8 immersed in the liquid part of the bar 7 is fixed on the float 3.
  • the stirring effect is brought about by the rotation of the rotatably mounted starting plate 6 about the bar axis x.
  • the agitator 8 in this case has any baffles which lie transversely to the flow direction of the metal which is moved by the rotation in the liquid part of the bar 7.
  • the agitator 8 is designed as a circular plate 9 with teeth 10.
  • the agitator 8 consists of two plates 11 arranged vertically and symmetrically about the longitudinal axis x of the bar 7.
  • the agitator 8 according to FIG. 4 has the shape of a propeller with two screw blades 12.
  • the screw axis lies in the longitudinal axis x of the bar 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP89810960A 1988-12-22 1989-12-14 Procédé et dispositif pour la coulée électromagnétique de métaux Expired - Lifetime EP0375620B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810960T ATE88120T1 (de) 1988-12-22 1989-12-14 Verfahren und vorrichtung zum elektromagnetischen giessen von metallen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4752/88 1988-12-22
CH475288 1988-12-22

Publications (2)

Publication Number Publication Date
EP0375620A1 true EP0375620A1 (fr) 1990-06-27
EP0375620B1 EP0375620B1 (fr) 1993-04-14

Family

ID=4281890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810960A Expired - Lifetime EP0375620B1 (fr) 1988-12-22 1989-12-14 Procédé et dispositif pour la coulée électromagnétique de métaux

Country Status (9)

Country Link
US (1) US4989666A (fr)
EP (1) EP0375620B1 (fr)
JP (1) JPH02211938A (fr)
AT (1) ATE88120T1 (fr)
AU (1) AU626615B2 (fr)
CA (1) CA2005816A1 (fr)
DE (1) DE58904078D1 (fr)
ES (1) ES2041034T3 (fr)
GR (1) GR3007662T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485331A1 (fr) * 1990-11-06 1992-05-13 Alusuisse-Lonza Services Ag Procédé et dispositif pour la coulée électromagnétique de billettes en aluminium allié présentant une surface dénuée de plis

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5275229A (en) * 1992-03-25 1994-01-04 Inductotherm Corp. Magnetic suspension melting apparatus
CN103555976A (zh) * 2013-11-04 2014-02-05 张家港市昊天金属科技有限公司 铝棒熔铸工艺
DE102017108394A1 (de) * 2017-04-20 2018-10-25 Inteco Melting And Casting Technologies Gmbh Verfahren und Vorrichtung zum Herstellen von Gussblöcken aus Metall

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702630A (en) * 1971-01-05 1972-11-14 Centrifugation Soc Civ De Apparatus for casting solid cylindrical metallic objects
US4612972A (en) * 1982-01-04 1986-09-23 Olin Corporation Method and apparatus for electro-magnetic casting of complex shapes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702630A (en) * 1971-01-05 1972-11-14 Centrifugation Soc Civ De Apparatus for casting solid cylindrical metallic objects
US4612972A (en) * 1982-01-04 1986-09-23 Olin Corporation Method and apparatus for electro-magnetic casting of complex shapes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 207 (M-242)[1352], 15. September 1983; JP-A-58 103 946 (NIPPON KOKAN K.K.) 21-06-1983 *
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 50 (M-281)[1487], 7. März 1984; & JP-A-58 202 957 (NIPPON KOKAN K.K.) 26-11-193 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0485331A1 (fr) * 1990-11-06 1992-05-13 Alusuisse-Lonza Services Ag Procédé et dispositif pour la coulée électromagnétique de billettes en aluminium allié présentant une surface dénuée de plis
US5184667A (en) * 1990-11-06 1993-02-09 Alusuisse-Lonza Services Ltd. Process and installation for the electromagnetic casting of rolled bars from an aluminum alloy having a ripplefree surface
CH682467A5 (de) * 1990-11-06 1993-09-30 Alusuisse Lonza Services Ag Verfahren und Vorrichtung zum elektromagnetischen Giessen von Walzbarren aus einer Aluminiumlegierung mit faltenfreier Oberfläche.

Also Published As

Publication number Publication date
CA2005816A1 (fr) 1990-06-22
EP0375620B1 (fr) 1993-04-14
AU4619789A (en) 1990-06-28
GR3007662T3 (fr) 1993-08-31
US4989666A (en) 1991-02-05
DE58904078D1 (de) 1993-05-19
ES2041034T3 (es) 1993-11-01
ATE88120T1 (de) 1993-04-15
JPH02211938A (ja) 1990-08-23
AU626615B2 (en) 1992-08-06

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