EP1356879A2 - Lingotière de coulée continue - Google Patents

Lingotière de coulée continue Download PDF

Info

Publication number
EP1356879A2
EP1356879A2 EP03004607A EP03004607A EP1356879A2 EP 1356879 A2 EP1356879 A2 EP 1356879A2 EP 03004607 A EP03004607 A EP 03004607A EP 03004607 A EP03004607 A EP 03004607A EP 1356879 A2 EP1356879 A2 EP 1356879A2
Authority
EP
European Patent Office
Prior art keywords
coolant
row
continuous casting
bores
mold according
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
EP03004607A
Other languages
German (de)
English (en)
Other versions
EP1356879B1 (fr
EP1356879A3 (fr
Inventor
Karl Rittner
Uwe Kopfstedt
Wolfgang Dr. Hennig
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.)
SMS Siemag AG
Original Assignee
SMS Demag 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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1356879A2 publication Critical patent/EP1356879A2/fr
Publication of EP1356879A3 publication Critical patent/EP1356879A3/fr
Application granted granted Critical
Publication of EP1356879B1 publication Critical patent/EP1356879B1/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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • 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
    • B22D11/055—Cooling the moulds

Definitions

  • the invention relates to a continuous casting mold for liquid metals, in particular for liquid steel with different casting speeds, e.g. between 3 m / min to 10 m / min are pourable, with different thicknesses of the casting strand are provided as a slab and also as a thin slab and the heat by means coolant guided through channels running in the casting direction can be removed.
  • the invention is based, for the production of an error-free end product the task a coordination of a minimum number of parameters with basic Propose meaning.
  • the object is achieved according to the invention in that the remaining copper plate thickness in front of a channel for coolant to the hot side, the arrangement and dimensions of the channels and the flow rate of the coolant to the entire range of casting speeds for the casting metal are coordinated.
  • the currently used version of the copper plates has a continuous row of cooling holes at a certain distance from each other.
  • This design is improved in that the coolant holes in the copper plate Coolant channels with a predetermined distance to the hot side of the Copper plate are arranged. This means that apart from the hot side distance the distance in the row across the copper plate width and the flow cross-sections of the coolant channels matched to each other.
  • the coolant holes at a predetermined distance from each other across the width of the copper plate and run a predetermined length over the height of the copper plate.
  • the cooling intensity in the area of the meniscus can also be increased by by additionally for higher casting speeds in relation to the hot side to a front, first row of the coolant holes at least one to the first Row with a larger distance from the hot side, second row of coolant holes is provided.
  • the casting speed can fundamentally be significantly increased.
  • the introduction of a second row of coolant holes may be different Improvement can be designed by having the second row of coolant holes each have a coolant hole at an increased distance from the hot side between two coolant holes in the first row.
  • Improved heat dissipation can also be supported that the second row of staggered coolant holes over an upper section or is provided over the entire height of the copper plate.
  • a cooling intensity change is before or during the Casting operation possible because the coolant holes of the first row and the second row each connected to a separate coolant circuit are.
  • Another embodiment is that the flow direction of the coolant in the first row and in the second row from top to bottom or reversed.
  • such a regulation provides that the coolant quantities the first row and the second row of coolant holes in Depending on the respective casting speed can be regulated.
  • the continuous casting mold is on its broad sides (for slabs or thin slab cross-sections) made of copper plates 1 with a copper plate thickness 1a, e.g. 25 mm thickness.
  • the continuous casting mold forms a so-called funnel mold, as indicated on the hot side 4.
  • Such funnel molds are e.g. in CSP systems used.
  • One of the broad sides delimits the liquid metal 5, in particular the liquid steel, and thus forms the hot side 4, the liquid Cast metal 5 is constantly kept at the level of the bath level 4a.
  • Coolant 3 (cooling water with or without additives) carries the heat of the liquid metal 3, so that, as shown in FIG. 3, the temperature profile 4b at the bath level 4a rises steeply and reaches a climax just below, seen from there the temperature drops to the exit of the copper plate 1.
  • the copper plate remaining thickness 1 c in front of a coolant channel 2 to the hot side 4 is voted.
  • One aspect of the coordination is that of the coolant holes 2a existing in the copper plate 1 coolant channels 2 with a predetermined Distance 6, which essentially corresponds to the remaining copper plate thickness 1c, to Hot side 4 of the copper plate 1 are arranged and a distance 7 between the next coolant bore 2a.
  • Another criterion for voting is in addition to the distance 7 across the width 1b of the copper plate 1, a predetermined one Length 8 over the height 9 of the copper plate 1.
  • the length 8 over the entire Height 9 reach or height 8 only extends to a middle area and the lower area is cooled as before via cooling slots (not shown).
  • first row 10 of the coolant holes 2a at least one to the first row 10 with an increased distance 11 to the hot side 4th a second row 12 of coolant bores 2a are arranged.
  • Row 10 will always used for normal casting operations up to approx. 6 m / min. It is a partial flow for the 12 series is also possible.
  • this is second row 12 of coolant bores 2a, each with an enlarged distance 11 to the hot side 4 arranged coolant bore 2a, which is between two coolant bores 2a of the first row 10 is located (see FIG. 3).
  • Coolant holes 2a can only over an upper portion, the length 8, can be provided in the copper plate 1.
  • the coolant holes 2a can also run over the full height 9 of the copper plate 1.
  • the coolant holes are for regulating the amount of heat to be dissipated per unit of time 2a of the first row 10 and the second row 12 each to one separate coolant circuit connected alternately or simultaneously be operated.
  • the diameter of the coolant holes 2a in the first row 10 can also larger than the diameter of the coolant bores 2a in the second row 12 to get voted. This results in different distances 11 from the hot side 4th
  • the flow direction 13 of the coolant 3 runs in the first row 10 and in the second row 12 from top to bottom.
  • the main flow of the coolant 3 is passed through the first row 10 of coolant bores 2a and a partial flow of the coolant 3 due to the reduced length 14 of the coolant bore in the height 9 of the mold plate 1 2a led.
  • the main flow of the coolant 3 is passed through row 12 executed at height 9 of mold plate 1 with shorter length 14 from coolant bores 2a and only a partial flow of coolant 3 through the first Row 10 out of coolant holes 2a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Led Devices (AREA)
EP03004607A 2002-04-23 2003-03-01 Lingotière de coulée continue Expired - Lifetime EP1356879B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10217906A DE10217906A1 (de) 2002-04-23 2002-04-23 Stranggießkokille für flüssige Metalle, insbesondere für flüssigen Stahl
DE10217906 2002-04-23

Publications (3)

Publication Number Publication Date
EP1356879A2 true EP1356879A2 (fr) 2003-10-29
EP1356879A3 EP1356879A3 (fr) 2003-11-05
EP1356879B1 EP1356879B1 (fr) 2008-02-27

Family

ID=28685230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03004607A Expired - Lifetime EP1356879B1 (fr) 2002-04-23 2003-03-01 Lingotière de coulée continue

Country Status (3)

Country Link
EP (1) EP1356879B1 (fr)
AT (1) ATE387275T1 (fr)
DE (2) DE10217906A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010003695A1 (fr) 2008-07-10 2010-01-14 Sms Siemag Ag Lingotière de coulée continue
ITUD20100215A1 (it) * 2010-11-25 2012-05-26 Danieli Off Mecc Cristallizzatore per colata continua
EP3461570A1 (fr) * 2017-09-28 2019-04-03 SMS Group GmbH Lingotière de coulée continue

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5299627A (en) * 1992-03-03 1994-04-05 Kawasaki Steel Corporation Continuous casting method
DE19852473C1 (de) * 1998-11-13 2000-05-31 Schloemann Siemag Ag Kokillenplatte einer Stranggießanlage
US6367539B1 (en) * 1999-01-13 2002-04-09 Danieli & C. Officine Meccaniche Spa Crystalliser for continuous casting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5299627A (en) * 1992-03-03 1994-04-05 Kawasaki Steel Corporation Continuous casting method
DE19852473C1 (de) * 1998-11-13 2000-05-31 Schloemann Siemag Ag Kokillenplatte einer Stranggießanlage
US6367539B1 (en) * 1999-01-13 2002-04-09 Danieli & C. Officine Meccaniche Spa Crystalliser for continuous casting

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010003695A1 (fr) 2008-07-10 2010-01-14 Sms Siemag Ag Lingotière de coulée continue
DE102008032672A1 (de) 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Stranggießkokille
ITUD20100215A1 (it) * 2010-11-25 2012-05-26 Danieli Off Mecc Cristallizzatore per colata continua
WO2012069913A1 (fr) * 2010-11-25 2012-05-31 Danieli & C. Officine Meccaniche Spa Cristallisoir pour moulage en continu
CN103328131A (zh) * 2010-11-25 2013-09-25 达涅利机械设备股份公司 用于连续铸造的结晶器
US8899305B2 (en) 2010-11-25 2014-12-02 Danieli & C. Officine Meccaniche Spa Crystallizer for continuous casting
CN103328131B (zh) * 2010-11-25 2015-07-22 达涅利机械设备股份公司 用于连续铸造的结晶器
EP3461570A1 (fr) * 2017-09-28 2019-04-03 SMS Group GmbH Lingotière de coulée continue

Also Published As

Publication number Publication date
EP1356879B1 (fr) 2008-02-27
DE50309235D1 (de) 2008-04-10
EP1356879A3 (fr) 2003-11-05
DE10217906A1 (de) 2003-11-06
ATE387275T1 (de) 2008-03-15

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