-
公开(公告)号:DE69614274T2
公开(公告)日:2002-05-02
申请号:DE69614274
申请日:1996-11-05
Applicant: ABB AB VAESTERAAS
Inventor: ERIKSSON ERIK , HALLEFAELT MAGNUS , KOLLBERG STEN
IPC: B22D11/04 , B22D11/10 , B22D11/115 , B22D27/02
Abstract: A method and a device, during casting of metal in a mould (12) which is open in both ends in the casting direction and where, in the mould, an incoming primary flow of melt is braked and split and the secondary flow is controlled by means of static or periodic low-frequency magnetic fields acting on the melt, for ensuring that the upper surface of the melt, the meniscus (17), does not solidify by the provision of at least one inductive heater (18) adapted to apply a magnetic alternating field which acts on and develops heat in and/or compressive forces acting on the melt close to the meniscus.
-
公开(公告)号:UA40608C2
公开(公告)日:2001-08-15
申请号:UA95073179
申请日:1994-01-04
Applicant: ABB AB
Inventor: ANDERSSON ERLAND , ERICSSON JAN-ERIC , HALLEFAELT MAGNUS , KOLLBERG STEN , SVENSSON ERIK , TALLBAECK GOETE
IPC: B22D11/04 , B22D11/049 , B22D11/051 , B22D11/10 , B22D11/115
Abstract: Винахідвідноситьсядопристроюдлябезперервногоотриманнязаготовки, щовідливається, безперервнимрозливаннямрідкогометалурозплаву, уякому (пристрої) потікрідкогометалув незатверділихчастинахзаготовкирегулюєтьсязадопомогоюстатичногоабоперіодичногонизькочастотногомагнітногополя. Пристрійдлябезперервногорозливанняметалуміститьщонайменшеодинвідкритийдонизукристалізатору виглядіохолоджуванихміднихплит, щоутворюютьохолоджувануливарнуформуз прямокутнимпоперечнимперерізом, вякомумідніплитиприкріпленікожнадоводоохолоджуваноїкоробчатоїбалки, щорозташованазовнівідміднихплит, атакожрамуз гідравлічнимипоршнями, щоскріплюютькристалізатор, прицьомузазначенийкристалізаторпристосованодляпостачанняйогопервиннимпотокомрозплаву, щонадходить, джерелостатичногоабонизькочастотногомагнітногополя, щоміститьрозділенийнапереднюі заднючастинимагнітопровіднийсердечник, засобипередачікристалізаторуколивальногоруху, переважноу форміхитногостолу, іосновуз засобамипідтримкизазначенихкристалізатора, магнітопровідногосердечникаі хитногостолу. Переднячастиназазначеногомагнітопровідногосердечникавиконаназаодноз зазначеноюводоохолоджуваноюкоробчатоюбалкою, азаднячастинаміститьзаднюрухливучастину, щовстановленаз можливістюпереміщенняв напрямку, який, восновному, співпадаєз напрямкоммагнітногополяв магнітопровідномусердечнику.
-
公开(公告)号:DE69701857T2
公开(公告)日:2000-12-07
申请号:DE69701857
申请日:1997-02-06
Applicant: ABB AB VAESTERAAS
Inventor: HALLEFAELT MAGNUS
IPC: B22D11/115 , B22D11/10
Abstract: A device, for continuously or semicontinuously casting of metal in a casting mould, for braking and splitting up a primary flow of hot melt supplied to a casting mould, and controlling the flow of melt in the non-solidified portions of a cast strand which is formed in the casting mould. The device comprises a plurality of water box beams which support and cool the casting mould and supply a coolant to the casting mould, and a magnetic brake. The magnetic brake is adapted to generate at least one static or periodic low-frequency magnetic field to act in the path of the inflowing melt and comprises at least one magnet to generate the magnetic field, at least one core to transmit the magnetic field to the casting mould and a cast strand, and at least one magnetic return path to close the magnetic circuit. The water box beam is completely or partially arranged in a magnetically conducting material. A magnetic brake comprises at least one magnetic circuit which comprises the casting mould and the cast strand into a magnetic circuit. The magnet is arranged in a recess in a water box beam. The magnet and the magnetic return path are integrated so that the magnet and the magnetic return path are arranged inside the rear wall of the water box beam.
-
公开(公告)号:AT203697T
公开(公告)日:2001-08-15
申请号:AT96938579
申请日:1996-11-05
Applicant: ABB AB
Inventor: ERIKSSON JAN ERIK , HALLEFAELT MAGNUS , KOLLBERG STEN
IPC: B22D11/04 , B22D11/10 , B22D11/115 , B22D27/02
Abstract: A method and a device, during casting of metal in a mould (12) which is open in both ends in the casting direction and where, in the mould, an incoming primary flow of melt is braked and split and the secondary flow is controlled by means of static or periodic low-frequency magnetic fields acting on the melt, for ensuring that the upper surface of the melt, the meniscus (17), does not solidify by the provision of at least one inductive heater (18) adapted to apply a magnetic alternating field which acts on and develops heat in and/or compressive forces acting on the melt close to the meniscus.
-
公开(公告)号:SE515110C2
公开(公告)日:2001-06-11
申请号:SE9701456
申请日:1997-04-18
Applicant: ABB AB
Inventor: HALLEFAELT MAGNUS , ERIKSSON JAN-ERIK , SVAHN CONNY
IPC: B22D20060101 , B22D11/10 , B22D11/115
Abstract: An electromagnetic brake (EMBR) for applying at least one static or periodic low-frequency magnetic field to a smelt inside a crucible used for (semi-)continuous casting, comprises at least one electromagnet consisting of a magnetic core (11) with sections that can be moved in an axial direction, and an electric coil (12) around the core. The brake is mounted in a framework (13) that contains position-fixing devices (15) which include components for altering and fixing the relative position between the coil and core in their vertical directions. An apparatus for (semi-)continuous casting of elongated metal goods is also claimed, comprising a cooled crucible constructed from a casting mould, support beams for the mould, and cooling devices used to cool the crucible and beams, as well as to supply coolant for cooling the smelt during casting, in addition to the above brake.
-
公开(公告)号:SE523157C2
公开(公告)日:2004-03-30
申请号:SE9703169
申请日:1997-09-03
Applicant: ABB AB
Inventor: ERIKSSON JAN-ERIK , HALLEFAELT MAGNUS , KOLLBERG STEN , PETTERSSON CARL , TALLBAECK GOETE
IPC: B22D11/04 , B22D11/115 , B22D27/02 , B22D11/10
Abstract: A method and a device for continuous or semi-continuous casting of metal. A primary flow (P) of hot metallic melt supplied into a mold is acted upon by at least one static or periodically low-frequency magnetic field to brake and split the primary flow and form a controlled secondary flow pattern in the non-solidified parts of the cast strand. The magnetic flux density of the magnetic field is controlled based on casting conditions. The secondary flow (M, U, C1, C2, c3, c4, G1, G2, g3, g4, O1, O2, o3, o4) in the mold is monitored throughout the casting and upon detection of a change in the flow, information on the detected change monitored flow is fed into a control unit (44) where the change is evaluated and the magnetic flux density is regulated based on this evaluation to maintain or adjust the controlled secondary flow.
-
公开(公告)号:DE69824749D1
公开(公告)日:2004-07-29
申请号:DE69824749
申请日:1998-08-31
Applicant: ABB AB VAESTERAAS
Inventor: ERIKSSON JAN-ERIK , HALLEFAELT MAGNUS , KOLLBERG STEN , PETERSOHN CARL , TALLBAECK GOETE
IPC: B22D11/04 , B22D11/115 , B22D27/02 , B22D11/10
Abstract: A method and a device for continuous or semi-continuous casting of metal. A primary flow (P) of hot metallic melt supplied into a mold is acted upon by at least one static or periodically low-frequency magnetic field to brake and split the primary flow and form a controlled secondary flow pattern in the non-solidified parts of the cast strand. The magnetic flux density of the magnetic field is controlled based on casting conditions. The secondary flow (M, U, C1, C2, c3, c4, G1, G2, g3, g4, O1, O2, o3, o4) in the mold is monitored throughout the casting and upon detection of a change in the flow, information on the detected change monitored flow is fed into a control unit (44) where the change is evaluated and the magnetic flux density is regulated based on this evaluation to maintain or adjust the controlled secondary flow.
-
公开(公告)号:AT269768T
公开(公告)日:2004-07-15
申请号:AT98941984
申请日:1998-08-31
Applicant: ABB AB
Inventor: ERIKSSON JAN-ERIK , HALLEFAELT MAGNUS , KOLLBERG STEN , PETERSOHN CARL , TALLBAECK GOETE
IPC: B22D11/04 , B22D11/115 , B22D27/02 , B22D11/10
Abstract: A method and a device for continuous or semi-continuous casting of metal. A primary flow (P) of hot metallic melt supplied into a mold is acted upon by at least one static or periodically low-frequency magnetic field to brake and split the primary flow and form a controlled secondary flow pattern in the non-solidified parts of the cast strand. The magnetic flux density of the magnetic field is controlled based on casting conditions. The secondary flow (M, U, C1, C2, c3, c4, G1, G2, g3, g4, O1, O2, o3, o4) in the mold is monitored throughout the casting and upon detection of a change in the flow, information on the detected change monitored flow is fed into a control unit (44) where the change is evaluated and the magnetic flux density is regulated based on this evaluation to maintain or adjust the controlled secondary flow.
-
公开(公告)号:SE0100698D0
公开(公告)日:2001-03-01
申请号:SE0100698
申请日:2001-03-01
Applicant: ABB AB
Inventor: GREFVE KENNETH , BOSSON JOERGEN , HALLEFAELT MAGNUS , JONSSON LARS
-
公开(公告)号:SE0004082D0
公开(公告)日:2000-11-08
申请号:SE0004082
申请日:2000-11-08
Applicant: ABB AB
Inventor: NORDEKVIST LARS , SVAHN CONNY , OLSSON ELENOR , LINDBLAD TORD , LARSSON PER , HALLEFAELT MAGNUS
IPC: B22D11/041 , B22D11/115 , B22D
-
-
-
-
-
-
-
-
-