EP1214165B1 - Vorrichtung zum kontinuierlichen oder halbkontinuierlichen giessen von metallen - Google Patents

Vorrichtung zum kontinuierlichen oder halbkontinuierlichen giessen von metallen Download PDF

Info

Publication number
EP1214165B1
EP1214165B1 EP00957185A EP00957185A EP1214165B1 EP 1214165 B1 EP1214165 B1 EP 1214165B1 EP 00957185 A EP00957185 A EP 00957185A EP 00957185 A EP00957185 A EP 00957185A EP 1214165 B1 EP1214165 B1 EP 1214165B1
Authority
EP
European Patent Office
Prior art keywords
yoke
mould
coil
magnetic cores
magnetic
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
Application number
EP00957185A
Other languages
English (en)
French (fr)
Other versions
EP1214165A1 (de
Inventor
Conny Svahn
Tord Kroon
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.)
ABB AB
Original Assignee
ABB AB
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 ABB AB filed Critical ABB AB
Publication of EP1214165A1 publication Critical patent/EP1214165A1/de
Application granted granted Critical
Publication of EP1214165B1 publication Critical patent/EP1214165B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields

Definitions

  • the present invention is related to a device for continuous or semi-continuous casting of metals according to the preamble of appended claim 1.
  • Electromagnetic brakes comprise arrangements for generation of a static, magnetic field generated through direct current or a magnetic field generated through permanent magnets or an alternating, low-frequency pulsating magnetic field in the liquid metal in a mould in a device for continuous or semi-continuous casting of metals.
  • the metal flowing in passes the field, the movement of the tap jet into the rest of the liquid metai is retarded by the field and the tap jet is split such that its impulse is weakened or ceases.
  • the field of the invention includes in particular devices for casting of "slabs", where the mould has a rectangular cross section and opposite pairs of magnetic cores are arranged along the opposite long sides of the mould and connected to a yoke each.
  • each magnetic core is divided into a front part being permanently arranged at the mould and a back part being detachably connected to the front part.
  • Each back core part carries a coil and each of the coils is wound substantially parallel to the mould wall around the back magnetic core part.
  • the front part of the magnetic core can have the shape of a plate or similar comprising a magnetic material and being permanently connected to the mould.
  • the back part has a surface for abutment against the front part which has an area and a geometry which is adjusted to the area and the geometry of the front part which in its turn is depending on the size of the mould among other things.
  • a drawback with prior art devices is that they require individual adjustment of the magnetic core part around which the coils are wound for different moulds of different size and the shape and size of the magnetic cores which are used differ from case to case.
  • Prior art magnetic cores in addition take up a relatively large space in a direction perpendicularly out from the mould wall.
  • An object of the present invention is to provide a device for continuous or semi-continuous casting of metals comprising an electromagnetic brake, which is designed such that it simply can be adjusted to different mould sizes.
  • the yoke and the magnetic cores shall be arranged in a way such that a compact brake, which extends as little as possible from the mould wall, is achieved, for enabling access of devices situated under the brake, for instances lifting devices.
  • At least a part of the yoke shall furthermore be easy to mount and dismount from the magnetic cores arranged at the mould.
  • a so-called standard brake By permanently attaching the magnetic cores to the mould so that they cover substantially the entire width of the mould the same yoke with coil, accordingly a so-called standard brake, may be used for devices applied to moulds with varying width.
  • a so-called standard brake may be used for devices applied to moulds with varying width.
  • JP-A-09057401 discloses a device having a yoke extending substantially in parallel with the casting direction, so that the magnetic flux lines will be longitudinal instead of transversal, and for example an exchange of the magnetic cores by longer or shorter ones would there only mean that the magnetic brake will there extend longer in the very casting direction, and any adaption thereof to another mould size would not be obtained. It would not be enough to only turn this device by 90° for arriving to the present invention, but other features has also to be added for obtaining the possibility of using commercially available yokes with coils independently of the width of the respective mould.
  • This device with the brake acting on two levels is designed so as to facilitate maintenance thereof, which is a totally different purpose than the purpose of the present invention.
  • JP-A-09057401 discloses a "vertical brake” whereas the present invention and the prior art device shown in fig 1 in the present application and substantially corresponding to the one according to JP-A-01271035 relate to "horizontal brakes", and it would not be a normal way to proceed for a person with skill in the art to look at “vertical brakes” when trying to solve problems with “horizontal brakes” in plants for continuous casting.
  • Vertical brakes are used for casting thick slabs, where it is desired to have magnetic fields in two different vertical layers for influencing different parts of the flow, for example at the meniscus of a liquid metal and at the mouth of the outlet tube.
  • the mechanic mould consists of flat vertical back-up plates and has often several outer frames.
  • the dimensions for the bloom are often comparatively large, for example 220 x 1600 mm, which results in a large surrounding mechanical construction for supporting the mould.
  • Horizontal brakes are used for casting thin slabs where it is desired to have a magnetic field present and acting in one horizontal plane.
  • the mechanical mould consists most often of back-up plates having a curved side for providing place for the casting tube.
  • the dimensions for the bloom are also smaller, typically 60 x 1100 mm, resulting in smaller mechanical support constructions.
  • Fig 1 shows a prior art device for continuous or semi-continuous casting of metals, the device comprising an electromagnetic brake 1.
  • the device furthermore comprises a copper mould 2 of a kind known per se on opposite sides of which the electromagnetic brake 1 is arranged.
  • the electromagnetic brake 1 comprises a number of magnetic cores 3, 4, 5, 6 connected to the mould wall.
  • the magnetic cores 3-6 are arranged in pairs on opposite sides of the mould along the long sides 7, 8 thereof and cover substantially the entire width of the mould except for a centre portion of the mould.
  • the magnetic cores 3, 4 and 5, 6, respectively, of each magnetic core pair are connected by means of a yoke 9, 10.
  • the magnetic cores 3, 4 and 5, 6, respectively, are welded into windows in so called backup plates 11, 12 made from stainless steel and forming support walls for the copper sheets of the mould.
  • Each magnetic core 3-6 comprises a magnetic core part 14-17 carrying a coil 18-21.
  • the coil carrying magnetic core parts 14-17 are preferably detachably connected to front magnetic core parts, being welded into the windows in the backup plates 11, 12.
  • the yokes 9, 10 are detachably connected, for instance fastened by bolts, at the magnetic cores 3, 4 and 5, 6, respectively.
  • the coils 18, 19, 20, 21 are wound substantially parallel to the mould wall around the back magnetic core parts 14, 15 and 16, 17, respectively.
  • Figs 2-4 show an embodiment of the device according to the invention, which shows an improved further development of the device according to Fig 1.
  • the device according to the invention comprises an electromagnetic brake 24, comprising two pairs of magnetic cores 25, 26 and 27, 28, respectively, arranged along opposite long side walls 29, 30 of a copper mould 31 known per se.
  • the magnetic cores 25-28 are arranged in a way corresponding to Fig 1 and serve to contribute to a generation of a magnetic field similar to the one described for the device according to Fig 1.
  • the magnetic cores are not divided into front and back parts, where the back parts carry coils, which is the case in Fig 1.
  • each magnetic core pair are connected by means of a yoke 32, 33.
  • Each yoke 32, 33 comprises a portion 34, 35, on which a coil 36, 37 is wound, each such portion being positioned substantially right in front of a space between the two magnetic cores 25, 26 and 27, 28, respectively, interconnected by the yokes 36, 37.
  • the yokes are detachably connected to the magnetic cores.
  • the yokes 32, 33 On opposite sides of the coil carrying portion 34, 35, the yokes 32, 33 comprise two further parts 38, 39 and 40, 41, respectively, forming a cradle for the coil carrying portion 34, 35 and having surfaces 46-49 for abutment against the respective magnetic cores 25-28.
  • the coil carrying portions 34, 35 are detachably attached, here fastened by bolts from above, to the further parts 38, 39 and 40, 41, respectively.
  • the cradle defined by the further parts 38, 39 and 40, 41 is such that it allows displacement of the coil carrying portions 34, 35 substantially vertically upwards. In that way the coils 36, 37 can be easily dismounted and exchanged if required.
  • the coil carrying portions 34, 35 can have the shape of a circular or square bar of magnetic material, around which the coils 36, 37 are wound.
  • the yokes 32, 33 furthermore comprise a number of pivoted portions 42-45, here being arranged to be pivoted substantially horizontally to enable access of parts of the device being situated under the electromagnetic brake 24 and which may need to be accessed for exchange and maintenance.
  • the pivoted parts 42-45 form part of the parts 38-41 described above which are arranged on opposite sides of the coil carrying portions 34, 35 and connected thereto.
  • Typical parts included in the device and situated under the electromagnetic brake 24 and which must be made accessible are for instance lifting devices for lifting the mould with underlying segments, and parts requiring exchange and maintenance, for instance cylinders which are used for control of the metal string being continuously cast by means of the device.
  • the yokes 32, 33 could comprise further parts or portions, but the proposed solution is sufficient for enabling a fast and simple adjustment of the yoke size to different mould widths, that is magnetic core widths.
  • the coil carrying portions 34, 35 have a standard size and the length of the further parts 38-41 is adjusted with reference to the width of the mould/magnetic core.
  • the device according to the invention normally comprises a large number of further components which, however, for the sake of clarity not have been shown in the appended drawings.
  • Examples of such components are cooling loops arranged around the mould, as well as different components arranged around the electromagnetic brake and limiting the space, which the electromagnetic brake can be allowed to occupy.
  • An idea of the invention is that yokes of the kind according to the invention shall be possible to be supplied to already existing devices for continuous or semi-continuous casting of metals and be mounted thereon, without any complicated adjustment of the brake which the yoke is part of being required on each single occasion.
  • the yokes 32, 33 preferably have the shape of bars or plates.
  • the coil carrying portions 34, 35 can be supplied separately to a user of a device for continuous or semi-continuous casting of metals, who then easily cuts and shapes the further parts 38-41 himself from a suitable bar material.
  • the yokes 32, 33, the magnetic cores 25-28 and the coils 36, 37 are arranged to generate a static magnetic field generated through direct current or a magnetic field generated through permanent magnets or an alternating, low-frequency pulsating magnetic field in the liquid metal in the mould of the device.
  • the further yoke parts 38-41 situated on the side can just as well be considered as back magnetic core parts being detachably connected to the front magnetic core parts, here the cores 25-28, being permanently attached to the mould.
  • existing coils 36, 37 only are mounted on yoke parts, of which the size and shape, at least over the cross section where the coil is arranged, are substantially independent of the mould size and the area of the magnetic cores against the copper wall of the mould.
  • Yokes and magnetic cores are all made of a magnetic material, preferably iron.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Braking Arrangements (AREA)

Claims (9)

  1. Vorrichtung zum kontinuierlichen oder halbkontinuierlichen Gießen von Metallen, mit einer elektromagnetischen Bremse, die umfasst:
    zumindest zwei Magnetkerne (25, 26; 27, 28), die auf einer Seite einer Form (31) angeordnet und daran befestigt sind, und
    ein Joch (32, 33), das abnehmbar mit den beiden Magnetkernen (25, 26; 27, 28) verbunden ist und diese verbindet, wobei das Joch (32, 33) zumindest eine Wicklung (36, 37) im Wesentlichen zwischen den beiden Magnetkernen (25, 26; 27, 28), die durch das Joch (32, 33) verbunden sind, trägt,
    dadurch gekennzeichnet, dass die Wicklung (36, 37) um das Joch (32, 33) derart gewickelt ist, dass die Zentralachse der Wicklung (36, 37) im Wesentlichen parallel zu einer Längsseite (29, 30) der Form (31) ist, dass die Zentralachse der Wicklung (36, 37) sich im Wesentlichen rechtwinklig zu der Gussrichtung in der Form (31) erstreckt, dass die Magnetkerne (25, 26; 27, 28) permanent an der Form (31) befestigt sind, und dass die Magnetkerne (25, 26; 27, 28) im Wesentlichen die gesamte Breite der Form (31) mit Ausnahme eines zentralen Abschnittes der Form (31) bedecken.
  2. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass die Form (31) transversal zu der Gussrichtung rechtwinklig ausgebildet ist und zwei gegenüberliegende lange Seiten (29, 30) aufweist, wobei sich entlang einer derselben das Joch (32, 33) im Wesentlichen parallel dazu erstreckt.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2,
    dadurch gekennzeichnet, dass die Magnetkerne (25 - 28) mit einem Raum dazwischen angeordnet sind, und dass die Wicklung (36, 37) im Wesentlichen rechts vor dem Raum positioniert ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass das Joch (32, 33) im Wesentlichen einen Stab oder eine Platte definiert, und dass die Wicklung (36, 37) um einen Zentralabschnitt (34, 35) des Stabes oder der Platte gewickelt ist.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, dass das Joch (32, 33) einen Abschnitt (34, 35) umfasst, der von dem Rest des Joches (32, 33) lösbar ist und die Wicklung (36, 37) trägt.
  6. Vorrichtung nach Anspruch 5,
    dadurch gekennzeichnet, dass das Joch (32, 33) ein Gestell definiert, das derart angeordnet ist, um den Abschnitt (34, 35), der die Wicklung (36, 37) trägt, aufzunehmen, und eine Verstellung des Abschnittes (34, 35) im Wesentlichen vertikal aus dem Gestell heraus ermöglicht.
  7. Vorrichtung nach Anspruch 6,
    dadurch gekennzeichnet, dass das Joch (32, 33) zusätzlich zu dem Abschnitt (34, 35), der die Wicklung (36, 37) trägt, zwei Jochteile (38, 39; 40, 41) umfasst, die auf gegenüberliegenden Seiten dieses Abschnittes (34, 35) angeordnet sind, das Gestell bilden und jeweils eine Fläche (46, 47; 48, 49) aufweisen, die derart ausgebildet ist, dass sie an einen jeweiligen Magnetkern (25, 26; 27, 28) angrenzt.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7,
    dadurch gekennzeichnet, dass das Joch (32, 33) zumindest einen Abschnitt (42 - 45) umfasst, der lösbar mit dem Rest des Joches (32, 33) verbunden ist und derart angeordnet ist, dass er für einen Zugriff auf Teile der Vorrichtung abgelöst werden kann, die vertikal unter der elektromagnetischen Bremse angeordnet sind.
  9. Vorrichtung nach Anspruch 8,
    dadurch gekennzeichnet, dass der Abschnitt (42 - 45) ein Umfangsabschnitt des Joches (32, 33) ist, der bezüglich dem Rest des Joches (32, 33) geschwenkt wird.
EP00957185A 1999-09-03 2000-08-22 Vorrichtung zum kontinuierlichen oder halbkontinuierlichen giessen von metallen Expired - Lifetime EP1214165B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9903146A SE515990C2 (sv) 1999-09-03 1999-09-03 Anordning för kontinuerlig eller halvkontinuerlig gjutning av metaller
SE9903146 1999-09-03
PCT/SE2000/001598 WO2001017713A1 (en) 1999-09-03 2000-08-22 A device for continuous or semi-continuous casting of metals

Publications (2)

Publication Number Publication Date
EP1214165A1 EP1214165A1 (de) 2002-06-19
EP1214165B1 true EP1214165B1 (de) 2004-11-24

Family

ID=20416873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00957185A Expired - Lifetime EP1214165B1 (de) 1999-09-03 2000-08-22 Vorrichtung zum kontinuierlichen oder halbkontinuierlichen giessen von metallen

Country Status (7)

Country Link
EP (1) EP1214165B1 (de)
JP (1) JP2003508229A (de)
AU (1) AU6883800A (de)
CA (1) CA2382417A1 (de)
DE (1) DE60016255T2 (de)
SE (1) SE515990C2 (de)
WO (1) WO2001017713A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007028501A1 (de) 2005-09-07 2007-03-15 Sms Demag Ag Bauteil für eine stranggiesskokille und verfahren zur herstellung des bauteils

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10237188A1 (de) * 2002-08-14 2004-02-26 Sms Demag Ag Elektromagnetische Bremsvorrichtung für in eine Stranggießkokille einströmende Stahlschmelze
JP4546748B2 (ja) * 2004-03-08 2010-09-15 新日本製鐵株式会社 連続鋳造用鋳型
DE102009029889A1 (de) 2008-07-15 2010-02-18 Sms Siemag Ag Elektromagnetische Bremseinrichtung an Stranggießkokillen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215254A (ja) * 1982-06-08 1983-12-14 Kawasaki Steel Corp 連続鋳造用鋳型の下方に配設される電磁攪拌装置
JPH01271035A (ja) * 1988-04-20 1989-10-30 Nkk Corp 鋼の連続鋳造方法
US5238051A (en) * 1990-02-23 1993-08-24 Nippon Steel Corp. Continuous casting apparatus
JPH0957401A (ja) * 1995-08-25 1997-03-04 Kawasaki Steel Corp 連続鋳造鋳型の電磁ブレーキ装置
CN1072060C (zh) * 1996-02-13 2001-10-03 瑞典通用电器勃朗勃威力公司 用于在铸型中浇注的装置及其使用方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007028501A1 (de) 2005-09-07 2007-03-15 Sms Demag Ag Bauteil für eine stranggiesskokille und verfahren zur herstellung des bauteils

Also Published As

Publication number Publication date
SE9903146L (sv) 2001-03-04
SE9903146D0 (sv) 1999-09-03
CA2382417A1 (en) 2001-03-15
DE60016255T2 (de) 2005-11-24
AU6883800A (en) 2001-04-10
WO2001017713A1 (en) 2001-03-15
DE60016255D1 (de) 2004-12-30
SE515990C2 (sv) 2001-11-05
JP2003508229A (ja) 2003-03-04
EP1214165A1 (de) 2002-06-19

Similar Documents

Publication Publication Date Title
JP3763582B2 (ja) モールドにおいて鋳造する装置
CA2152600C (en) Device in continuous casting in a mould
JP2009119517A (ja) 電磁攪拌・電磁ブレーキ兼用電磁コイル装置
EP1214165B1 (de) Vorrichtung zum kontinuierlichen oder halbkontinuierlichen giessen von metallen
AU778670B2 (en) Method for vertical continuous casting of metals using electromagnetic fields and casting installation therefor
SE500745C2 (sv) Sätt och anordning vid gjutning i kokill
KR101207679B1 (ko) 전자 교반과 전자 브레이크를 겸용 가능한 주형내 용강용 전자 코일 장치
JPH1029044A (ja) 鋳造機への溶融金属流を遅延させる方法及び装置
US5332027A (en) Electromagnetic braking apparatus for continuous casting mold
JPH03258442A (ja) 連続鋳造鋳型の電磁ブレーキ装置
WO1998036861A1 (en) Method and apparatus for electromagnetic confinement of molten metal
JP2988874B2 (ja) ツインロール式連続鋳造機
US6332493B1 (en) Device for continuous casting of two strands in parallel
CA2543600A1 (en) Magnetic brake for continuous casting moulds
US6341642B1 (en) Controllable variable magnetic field apparatus for flow control of molten steel in a casting mold
RU2417858C2 (ru) Компонент кристаллизатора для непрерывной разливки и способ его изготовления
GB2091607A (en) Continuous casting apparatus
US5222545A (en) Method and apparatus for casting a plurality of closely-spaced ingots in a static magnetic field
CA2320561C (en) Controllable variable magnetic field apparatus for flow control of molten steel in a casting mold
JP3091699B2 (ja) 継目なし金属鋳造品を製造する金型装置
JPH1177258A (ja) 連続鋳造機の電磁ブレーキ装置
WO2002074472A1 (en) A device for continuous casting of metal
JPH0957401A (ja) 連続鋳造鋳型の電磁ブレーキ装置
KR19980068602A (ko) 연속주조용 주형의 전자기 진동 장치 및 그 제어 방법

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

17P Request for examination filed

Effective date: 20020205

AK Designated contracting states

Kind code of ref document: A1

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

17Q First examination report despatched

Effective date: 20031217

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT

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): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60016255

Country of ref document: DE

Date of ref document: 20041230

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

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

ET Fr: translation filed
26N No opposition filed

Effective date: 20050825

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130821

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140822

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: 20140822

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60016255

Country of ref document: DE

Representative=s name: MANITZ FINSTERWALD PATENT- UND RECHTSANWALTSPA, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 60016255

Country of ref document: DE

Representative=s name: MANITZ FINSTERWALD PATENTANWAELTE PARTMBB, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 60016255

Country of ref document: DE

Owner name: ABB SCHWEIZ AG, CH

Free format text: FORMER OWNER: ABB AB, VAESTERAS, SE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: ABB SCHWEIZ AG, CH

Effective date: 20181106

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20190822

Year of fee payment: 20

Ref country code: DE

Payment date: 20190822

Year of fee payment: 20

Ref country code: IT

Payment date: 20190829

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 60016255

Country of ref document: DE