EP0062606B1 - Vorrichtung zum Kühlen eines Giessstranges während des Stranggiessens - Google Patents

Vorrichtung zum Kühlen eines Giessstranges während des Stranggiessens Download PDF

Info

Publication number
EP0062606B1
EP0062606B1 EP82810127A EP82810127A EP0062606B1 EP 0062606 B1 EP0062606 B1 EP 0062606B1 EP 82810127 A EP82810127 A EP 82810127A EP 82810127 A EP82810127 A EP 82810127A EP 0062606 B1 EP0062606 B1 EP 0062606B1
Authority
EP
European Patent Office
Prior art keywords
cooling
length
apertures
continuous casting
cooling medium
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
EP82810127A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0062606A1 (de
Inventor
Walter Haller
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.)
Alcan Holdings Switzerland AG
Original Assignee
Schweizerische Aluminium AG
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 Schweizerische Aluminium AG filed Critical Schweizerische Aluminium AG
Publication of EP0062606A1 publication Critical patent/EP0062606A1/de
Application granted granted Critical
Publication of EP0062606B1 publication Critical patent/EP0062606B1/de
Expired 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • 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
    • 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
    • B22D11/049—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for direct chill casting, e.g. electromagnetic casting

Definitions

  • the invention relates to a device for cooling a casting strand emerging from an electromagnetic continuous casting mold during continuous casting by applying coolant directly to the circumference of the strand (DE-A-1 908 763).
  • heat is removed from the casting strand emerging from the mold by applying coolant to the surface of the strand directly below the mold.
  • the coolant initially only touches the start-up floor.
  • the indirect heat removal that occurs leads to a mild solidification of the liquid metal and to an even formation of the strand base.
  • the coolant strikes the surface of the strand, which is associated with a sudden increase in heat dissipation from the casting strand.
  • the thermal stresses that occur as a result of this temperature shock are greater than the tensile strength of the cast strand and lead to permanent deformation in the form of a convex curvature of the strand base and, if the tensile strength is exceeded, to cracks in the strand.
  • the strand In order to obtain a casting strand with a flat foot, the strand must not be cooled too much during the start-up process.
  • a method is also known in which the coolant is applied in a pulsating manner to reduce the cooling intensity, at least during the start-up process.
  • the deflecting surface is provided with tongues arranged tongues, separated by recesses.
  • the ratio between the width of the recesses and the distance between adjacent recesses is between 1:10 and 1: 1.5, in particular between 1: 6 and 1: 2, the distance between adjacent recesses being 5 to 50 mm.
  • the tongues can additionally have recesses lying parallel to the recesses, the length of which is smaller than the length of the recesses. This arrangement enables the cooling intensity to be increased after the start-up process via an intermediate stage.
  • the deflection surface can be designed to be rotatable about the casting strand axis.
  • a cooling device based on the same longitudinal zone cooling principle in which, according to the invention, tubular nozzles for a gas are arranged parallel to the casting strand axis, the nozzle opening of which ends above the path of the coolant emerging from the annular gap, also leads to the achievement of the object.
  • the coolant is deflected here by the gas stream emerging from the nozzles.
  • the distance between adjacent nozzles is preferably between 5 and 50 mm, in particular between 15 and 25 mm.
  • the nozzles can be connected to a ring line.
  • an induction coil 4 which is formed by a hollow profile in the illustrated exemplary embodiments, is placed around a casting opening for a casting strand 1 with a starting base 2. This is mounted on a multi-part support body 5 made of insulating material, which has corresponding recesses on its inside for receiving the induction coil 4.
  • the upper support body 6 is connected to a metallic cover 7 and delimits cavities for a flowing coolant.
  • An electromagnetic shield 8 which is connected to the cover 7 by a screw thread, is used to adapt the magnetic field to the increasing metallostatic pressure in the casting strand 1, with a selected position of the shield 8 can be fixed by locking screws 9.
  • this screen 8 is preceded by a jacket 10 made of refractory, insulating material towards the pouring opening.
  • an insulating body 11 is attached, which together with the outer surface of the electromagnetic screen 8 forms an annular gap 12 through which coolant 13 is sprayed onto the casting strand 1.
  • the coolant is introduced into the cavity formed by the upper support body 6 and its cover 7, then flows through various fluid dynamic calming elements - for example a screen plate 14 with holes 15 - as well as a collar-like weir 16 and then exits through the annular gap 12 at a predetermined angle, which is given by the function of the screen 8 to adapt the magnetic field to the metallostatic pressure in the casting strand.
  • a baffle 17 - for example a 0.5 mm thick baffle made of stainless steel - protrudes parallel to the casting strand axis and acts as a baffle for the coolant Deflector and whose inner contour is adapted to the cross-sectional contour of the casting strand 1.
  • racks 18 are fastened to this, which are each in engagement with these associated gear wheels 19 of a drive device (not shown in the drawing).
  • the baffle 17 shown in FIG. 2 has, at a distance b of, for example, 20 mm, recesses 21 of a length 1 of, for example, 25 mm and a width of, for example, 5 mm, which are separated from one another by tongues arranged in tongues 20.
  • X denotes a section line of the coolant 13 emerging from the annular gap 12 with the plane of the baffle plate 17.
  • each tongue 20 is additionally provided with a recess 22 according to FIG. 3.
  • the length 1 1 of the recesses 21 is, for example, 25 mm and the length 1 2 of the recesses 22 is 15 mm.
  • the recesses 21 or recesses 22 have a width a or d of 5 mm, for example.
  • the cutouts 22 lie in the middle between two cutouts 21, ie the distance c between one cutout and an adjacent cutout is 10 mm.
  • X and X 2 denote two different cutting lines of the coolant 13 emerging from the annular gap 12 with the plane of the baffle 17. The cutting line X only cuts the recesses, the cutting line X 2 also the recesses.
  • tubular nozzles 23 are arranged parallel to the axis of the casting strand, the nozzle opening of which is at a distance of 5 mm, for example, from the nozzle axis to the flow path of the coolant 13 emerging from the annular gap 12; the distance between the individual nozzles 23 is, for example, 20 mm.
  • the nozzles 23 are connected to a ring line 24 formed by a hollow profile, which is connected to a compressed air tank via a line (not shown in FIG. 4).
  • the ring line 24 is attached to angled brackets 25 which rest on the upper edge of the continuous casting mold.
  • the partial deflection of the coolant 13 emerging from the annular gap 12 results in an interruption of the line of impact Y of the coolant on the surface of the casting strand 1, as shown in FIG. 5.
  • the cooling surfaces 26 which hit the surface of the casting strand and flow down there have one Width a of for example 5 mm and are at a distance b of for example 25 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Basic Packing Technique (AREA)
EP82810127A 1981-04-02 1982-03-19 Vorrichtung zum Kühlen eines Giessstranges während des Stranggiessens Expired EP0062606B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH224581 1981-04-02
CH2245/81 1981-04-02

Publications (2)

Publication Number Publication Date
EP0062606A1 EP0062606A1 (de) 1982-10-13
EP0062606B1 true EP0062606B1 (de) 1985-02-06

Family

ID=4229250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82810127A Expired EP0062606B1 (de) 1981-04-02 1982-03-19 Vorrichtung zum Kühlen eines Giessstranges während des Stranggiessens

Country Status (7)

Country Link
US (1) US4572280A (enrdf_load_stackoverflow)
EP (1) EP0062606B1 (enrdf_load_stackoverflow)
JP (1) JPS57177854A (enrdf_load_stackoverflow)
CA (1) CA1207511A (enrdf_load_stackoverflow)
DE (1) DE3262189D1 (enrdf_load_stackoverflow)
NO (1) NO157770C (enrdf_load_stackoverflow)
ZA (1) ZA821828B (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375853B (de) * 1983-02-15 1984-09-25 Voest Alpine Ag Strahlduese
JPS63242443A (ja) * 1987-03-31 1988-10-07 Sumitomo Light Metal Ind Ltd 電磁場鋳造装置
NO165711C (no) * 1988-04-15 1991-03-27 Norsk Hydro As Stoepeanordning for kontinuerlig eller semi-kontinuerlig stoeping av metall.
JP2721281B2 (ja) * 1991-09-19 1998-03-04 ワイケイケイ株式会社 連続鋳造の冷却方法及び鋳型
CH688129A5 (de) * 1992-10-06 1997-05-30 Alusuisse Lonza Services Ag Giessmaschine fuer das vertikale Stranggiessen in einem Magnetfeld.
NO177219C (no) * 1993-05-03 1995-08-09 Norsk Hydro As Stöpeutstyr for stöping av metall
US6264767B1 (en) 1995-06-07 2001-07-24 Ipsco Enterprises Inc. Method of producing martensite-or bainite-rich steel using steckel mill and controlled cooling
AU4596899A (en) 1998-07-10 2000-02-01 Ipsco Inc. Method and apparatus for producing martensite- or bainite-rich steel using steckel mill and controlled cooling
US6491087B1 (en) * 2000-05-15 2002-12-10 Ravindra V. Tilak Direct chill casting mold system
US20050003387A1 (en) * 2003-02-21 2005-01-06 Irm Llc Methods and compositions for modulating apoptosis
US20050000679A1 (en) * 2003-07-01 2005-01-06 Brock James A. Horizontal direct chill casting apparatus and method
US7007739B2 (en) 2004-02-28 2006-03-07 Wagstaff, Inc. Direct chilled metal casting system
US20050189880A1 (en) * 2004-03-01 2005-09-01 Mitsubishi Chemical America. Inc. Gas-slip prepared reduced surface defect optical photoconductor aluminum alloy tube

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976189C (de) * 1944-12-13 1963-04-25 Beteiligungs & Patentverw Gmbh Verfahren zum Regeln der Abkuehlung von nach dem Stranggiessverfahren hergestellten Bloecken
FR1467702A (fr) * 1966-02-09 1967-01-27 éléments ajourés en matière plastique pour la construction de parois, principalement pour le bâtiment et la décoration
US3616844A (en) * 1970-02-24 1971-11-02 Benteler Geb Paderwerk Apparatus for continuous casting of metal ingots
CH530831A (de) * 1970-09-04 1972-11-30 Concast Ag Verfahren und Vorrichtung zum Kühlen mittels Sprühdüsen und Führen eines Stranges in der Sekundärkühlzone einer Stranggiessanlage
US3741280A (en) * 1971-11-03 1973-06-26 G Safaroy Mould for the production of metal ingots
US3757849A (en) * 1972-04-28 1973-09-11 Koppers Co Inc Strand cooling support system
FR2264598B2 (enrdf_load_stackoverflow) * 1974-03-20 1979-04-13 Fives Cail Babcock
JPS50117638A (enrdf_load_stackoverflow) * 1974-02-28 1975-09-13
AT341696B (de) * 1975-04-30 1978-02-27 Schoffmann Rudolf Dipl Ing Stranggiessanlage
US4236570A (en) * 1979-01-08 1980-12-02 Olin Corporation Ingot shape control by dynamic head in electromagnetic casting
DE2914246C2 (de) * 1979-03-07 1981-11-12 Schweizerische Aluminium AG, 3965 Chippis Elektromagnetische Stranggießkokille
US4351384A (en) * 1979-09-24 1982-09-28 Kaiser Aluminum & Chemical Corporation Coolant control in EM casting

Also Published As

Publication number Publication date
NO157770B (no) 1988-02-08
DE3262189D1 (en) 1985-03-21
CA1207511A (en) 1986-07-15
US4572280A (en) 1986-02-25
NO821082L (no) 1982-10-04
EP0062606A1 (de) 1982-10-13
JPS57177854A (en) 1982-11-01
NO157770C (no) 1988-05-18
JPH0436772B2 (enrdf_load_stackoverflow) 1992-06-17
ZA821828B (en) 1983-02-23

Similar Documents

Publication Publication Date Title
EP0062606B1 (de) Vorrichtung zum Kühlen eines Giessstranges während des Stranggiessens
DE69318211T2 (de) Kühlverfahren und -vorrichtung für Stranggiessanlage und deren Form
EP0015870B1 (de) Elektromagnetische Stranggiesskokille
DE3201725A1 (de) Verfahren zum giessen von leichtmetallerzeugnissen
DE3526689A1 (de) Verfahren und vorrichtung zum horizontalstranggiessen von metall
DE68922285T2 (de) Stranggiesskokille mit direkter Kühlung mit verstellbarem Kühlmitteltreffpunkt.
DE1952209A1 (de) Vorrichtung zum Erzeugen von Metallhohlbloecken
EP0036611B1 (de) Verfahren und Vorrichtung zum Stützen eines im Stranggiess-Verfahren hergestellten Stahlstranges
DE2853868C2 (de) Verfahren zum Stranggießen von Stahl sowie dementsprechend hergestellter Stahlstrang
DD284175A5 (de) Verfahren zum kuehlen eines metallischen gegenstandes waehrend des stranggiessens
DE68901655T2 (de) Vorrichtung zum kuehlen eines metalls waehrend des giessens.
CH363129A (de) Verfahren zum kontinuierlichen Giessen von Metallsträngen und Kokille zum Durchführen des Verfahrens
DE830387C (de) Verfahren und Vorrichtung zum stetigen Giessen eines Metallstranges
EP1286799B1 (de) Verfahren und anlage zum herstellen eines stranggegossenen vorproduktes
EP0107069A1 (de) Verfahren zum Stranggiessen von Metallen, insbesondere von Stahl und Stranggiessanlagen dazu
EP0900609B1 (de) Tauchgiessrohr zum Einleiten von Schmelze aus einem Giess- oder Zwischenbehälter in eine Kokille
DE3000507A1 (de) Verfahren und vorrichtung zum elektromagnetischen giessen
DE4307464C2 (de) CSP-Stranggießmaschine für die kontinuierliche Herstellung von Dünnbrammen aus Stahl
DE4006842A1 (de) Bandgiessanlage mit oszillierender durchlaufkokille
EP0229589B1 (de) Vorrichtung und Verfahren zum Stranggiessen von Metallen
EP1099497A1 (de) Kokille zum Stranggiessen von Metall mit einem trichterförmig verjüngten Eingiessbereich
EP0553597A1 (de) Elektromagnetische Stranggiesskokille
DE19757093C2 (de) Verfahren und Vorrichtung zum kontinuierlichen Gießen von Drähten mittels einer rotierenden Kreisringnut
DD157541A5 (de) Vorrichtung zum vergiessen von fluessigem stahl
EP0166718B1 (de) Verfahren und Vorrichtung zum Stranggiessen von metallischen Schmelzen

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

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19820909

ITF It: translation for a ep patent filed
RBV Designated contracting states (corrected)

Designated state(s): CH DE FR GB IT LI NL SE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 3262189

Country of ref document: DE

Date of ref document: 19850321

ET Fr: translation filed
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

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19920214

Year of fee payment: 11

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

Ref country code: SE

Payment date: 19920219

Year of fee payment: 11

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

Ref country code: FR

Payment date: 19920220

Year of fee payment: 11

Ref country code: DE

Payment date: 19920220

Year of fee payment: 11

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

Ref country code: GB

Payment date: 19920311

Year of fee payment: 11

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

Ref country code: NL

Payment date: 19920331

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930331

Ref country code: CH

Effective date: 19930331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19931001

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19931130

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19931201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 82810127.9

Effective date: 19931008