US3897906A - Cooling device for strands that are to be cast continuously - Google Patents

Cooling device for strands that are to be cast continuously Download PDF

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Publication number
US3897906A
US3897906A US489358A US48935874A US3897906A US 3897906 A US3897906 A US 3897906A US 489358 A US489358 A US 489358A US 48935874 A US48935874 A US 48935874A US 3897906 A US3897906 A US 3897906A
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Prior art keywords
strand
spray nozzles
strands
cooling device
width
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Expired - Lifetime
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US489358A
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English (en)
Inventor
Ernst Bachner
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Voestalpine AG
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Voestalpine AG
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    • 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

Definitions

  • the invention relates to u cooling dcvicc for strands that are to be cast continuously. in particular for steel slabs of different widths.
  • Spray nozzles connected to Foreign Application Priority Data 1 1 r v (wk/7' pipe conduits for supplying u cool-tint are distributed over the width und the length of the strand.
  • the hithcrtu known cooling devices used in continuous casting 2 H 1 al Md .1 7- 7.. 88 l 93 3 C L n have the disadvuntagc that the cooling effect becomes irregular when thc slah size is changed. This disadvanh C r. a e
  • the invention relates to a cooling device for strands that are to be cast continuously, in particular for steel slabs of different widths, with spray nozzles distributed over the width and length of the strand. which nozzles are connected to pipe conduits for the supply with the cooling medium.
  • spray nozzles with a flat characteristic and a staggered arrangement of the nozzles, seen in transport direction of the strand, have been proposed; moreover it has been known to supply the spray nozzles groupwisely with a cooling agent, wherein the capacity of the cooling agent of the one group selectively alternates, cyclically with the altered capacity of the cooling agent of another group. Finally it has also been recommended to provide individual rows of spray nozzles to be completely separately capable of being regulated or turned off, respectively, in particular the nozzles lying in the range of the edges of the strand, so that the strand edges be not cooled too strongly, which leads to the formation of cracks.
  • the turning off of individual spray nozzles has the disadvantage that, when the nozzles remain turned off for a longer period. im purities of the cooling agent are deposited in the pipe conduits, which may lead to a choking of the nozzle bores, when the nozzles are turned on again.
  • a preferred embodiment consists in that the spray nozzles can be moved oscillating within two limit lines, which can be adjusted in a freely selectable distance from the strand edges.
  • At least two spray nozzles per strand side are arranged displaceably side by side in a plane perpendicular to the strand surface, wherein their displacement range is smaller than half the strand width.
  • spray nozzles can be moved towards each other or away from each other mirror-symmetrically in relation to the strand center.
  • a development of the invention consists in that the spray nozzles seen in transport direction of the strand are arranged staggered in a manner known per se and are combined in groups, wherein the degree of staggered arrangement advantageously corresponds to the displacement range.
  • FIG. I shows a side view of a continuous casting plant for slabs, illustrated schematically.
  • FIG. 2 is a view of the width of the slab below the mold, wherein for reasons of better clarity the supportand guiding rollers are not shown.
  • FIG. I 1 denotes a water-cooled. vertically oscillating mold, from which a strand 2 is withdrawn.
  • the rollers for supporting, guiding and bending the strand 2 from the vertical to the horizontal are denoted with 3 and the driven withdrawing rollers are denoted with 4; the withdrawal direction is indicated by the arrow 5.
  • the cooling device arranged to follow the mold I the so-called secondary cooling zone, comprises three sec tions 6, 7 and 8, formed by the cooling-water pipes 9, l 1, l2 and the spray nozzles 10.
  • the spray nozzles 10 are arranged between the rollers 3 in all three cooling sections. According to the invention the spray nozzles are, groupwise together with the pertaining coolingwater-supply pipes 9, II, 12, horizontally displaceable, transversely to the strand surface, as can be seen in detail from FIG. 2.
  • Each section 6, 7, 8 of the cooling system is provided with two spray nozzle rows per strand side, which spray nozzles are parallel in relation to the strand center 20 and are fixedly connected with the pipes 9, I], 12.
  • As drive means for the pipes various installations known to the man skilled in the art may be used, as e.g.
  • the distance b of the limit lines 18 from the strand edges 19 is fixed corresponding to the opening angle of the spray nozzles, so that a subcooling of the strand is avoided.
  • the distance between the limit lines 17 also depends on the spray characteristic of the nozzles used, i.e. it is to be chosen in such a way that also the middle zone is completely actuated by the coolant, when the spray nozzles are in one final position 9, ll, 12.
  • the number of spray nozzles forming a group 6, 7, 8 may fluctuate between i and n, preferably between 2 and n; with narrow slabs one can do with one single spray nozzle oscillating forward and backward between the lines 18 in a plane between the rollers 3 and with wide slabs two spray nozzles 10 in a plane are sufficient, which are then arranged, as illustrated in FIG. 2, and are moved in opposite direction relative to each other. Also the number of spray nozzles 10 of a group arranged one following the other in the direction of the movement 5 of the strand 2 may vary between 1 and n.
  • Each group can therefore comprise a different number of nozzles; it is however important that the spray nozzles be arranged mirror-symmetrically in relation to the strand center and that the horizontal movement of the pipes l3, l4, l5 correspond in one and the same plane on both halves of the strand.
  • lf as shown in this embodiment only two nozzles 10 each are used between the rollers 3, the nozzles can have a correspondingly big exit cross section which can hardly be choked by impurities contained in the coolant; the operational reliability of the device is thus decreased and much less maintenance of the secondary cooling zone is necessary, because in the coolant system there is no need for complicated control and regulating devices.
  • a cooling device for strands that are to be cast continuously, in particular for flat steel slabs of different widths, said strands having edges and a pair of parallel flat surfaces, said cooling device comprising a plurality of spray nozzles distributed over the width and along a given length of the strand, the spray nozzles being connected to pipe conduits for supplying them with a coolant, the improvement in which the spray nozzles are movable along horizontal straight line paths within a displacement range less than the width of said strand, said paths being transverse to the strand surface.
  • a cooling device for strands that are to be cast continuously, in particular for steel slabs of different widths, said strands having edges and a surface.
  • said cooling device including a plurality of spray nozzles distributed over the width and along a given length of the strand, the spray nozzles being connected to pipe conduits for supplying them with a coolant, the improvement in which, said spray nozzles are movable horizontally and transverse to the strand surface in an oscillatory manner between two limit lines, the limit lines being adjustable within a freely selectable distance from the edges of the strand.
  • a cooling device for strands that are to be cast continuously, in particular for steel slabs of different widths, said strands having edges and a surface
  • said cooling device including a plurality of spray nozzles distributed over the width and along a given length of the strand, the spray nozzles being connected to pipe conduits for supplying them with a coolant
  • the improvement in which, there are at least two spray nozzles on each side of the strand arranged side by side and in a plane perpendicular to the surface of the strand, and said nozzles are movable horizontally and transverse to the strand within a displacement range smaller than half the width of the strand.
  • a cooling device for strands that are to be cast continuously, in particular for steel slabs of different widths, said strands having edges and a surface
  • said cooling device including a plurality of spray nozzles distributed over the width and along a given length of the strand, the spray nozzles being connected to pipe conduits for supplying them with a coolant, the improvement in which, said spray nozzles are movable towards and away from each other, horizontally and transverse to the strand, in mirror-symmetry with respect to the center of the strand.
  • a cooling device for strands that are to be cast continuously, in particular for steel slabs of different widths, said strands having edges and a surface
  • said cooling device including a plurality of spray nozzles distributed over the width and along a given length of the strand, the spray nozzles being connected to pipe conduits for supplying them with a coolant
  • said spray nozzles are movable horizontally and transverse to the strand within a certain displacement range and are arranged in groups along the direction of movement of the strand, the nozzles of one group being staggered in position relative to the center of the strand with respect to the nozzles of adjacent groups by a distance substantially equal to said displacement range.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Spray Control Apparatus (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
US489358A 1973-07-27 1974-07-17 Cooling device for strands that are to be cast continuously Expired - Lifetime US3897906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT661273A AT323921B (de) 1973-07-27 1973-07-27 Kuhleinrichtung für kontinuierlich zu giessende stränge

Publications (1)

Publication Number Publication Date
US3897906A true US3897906A (en) 1975-08-05

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US489358A Expired - Lifetime US3897906A (en) 1973-07-27 1974-07-17 Cooling device for strands that are to be cast continuously

Country Status (13)

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US (1) US3897906A (it)
JP (1) JPS5328129B2 (it)
AT (1) AT323921B (it)
BE (1) BE817309A (it)
BR (1) BR7406183D0 (it)
CA (1) CA1018348A (it)
CH (1) CH573780A5 (it)
DE (1) DE2435495C2 (it)
ES (1) ES427725A1 (it)
FR (1) FR2238550B1 (it)
GB (1) GB1481220A (it)
IT (1) IT1016221B (it)
SE (1) SE409960B (it)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598760A (en) * 1981-05-08 1986-07-08 Mannesmann Ag Cleaning roller tracks of withdrawal stands in machines for continuous casting
US5329779A (en) * 1993-02-09 1994-07-19 C.V.G. Siderurgica Del Orinoco, C.A. Method and apparatus for cooling workpieces
WO1995033573A1 (en) * 1994-06-03 1995-12-14 Dorr-Oliver Incorporated Improved high-pressure screen shower
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
US6374901B1 (en) 1998-07-10 2002-04-23 Ipsco Enterprises Inc. Differential quench method and apparatus
KR100435459B1 (ko) * 1999-12-20 2004-06-10 주식회사 포스코 소둔로의 유동형 냉각장치
KR100467797B1 (ko) * 2000-11-09 2005-01-24 주식회사 포스코 연속소둔로의 스트립 급냉장치
US20080115906A1 (en) * 2006-11-22 2008-05-22 Peterson Oren V Method and Apparatus for Horizontal Continuous Metal Casting in a Sealed Table Caster
US20090095438A1 (en) * 2006-01-11 2009-04-16 Uwe Plociennik Method and Apparatus for Continuous Casting
US20090115113A1 (en) * 2005-08-01 2009-05-07 Ebner Industrieofenbau Ges.M.B.H Apparatus for cooling a metal strip
CN101432086B (zh) * 2006-04-25 2011-09-07 西门子Vai金属技术两合公司 喷嘴调节装置
CN101351285B (zh) * 2006-01-11 2011-12-28 Sms西马格股份公司 用于连铸的方法和装置
US11286539B2 (en) * 2017-11-20 2022-03-29 Primetals Technologies Japan, Ltd. Cooling apparatus for metal strip and continuous heat treatment facility for metal strip

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2636666C2 (de) * 1976-08-14 1978-06-29 Demag Ag, 4100 Duisburg Spritzdüsen-Anordnung für Metall-, insbesondere für StahlstranggieBanlagen für extrem breite Stahlbrammen
DE2939322C2 (de) * 1979-09-28 1986-09-11 Mannesmann AG, 4000 Düsseldorf Vorrichtung zur Änderung des Abstandes von Spritzbalken einer Stranggießanlage
JPS57127505A (en) * 1981-01-22 1982-08-07 Nippon Steel Corp Direct rolling manufacturing device for steel
DE10001073A1 (de) * 2000-01-13 2001-07-19 Sms Demag Ag Verfahren und Vorrichtung zum Verhindern einer unerwünschten Abkühlung der Bandkantenbereiche eines Gußstranges

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499456A (en) * 1967-06-05 1970-03-10 Marotta Valve Corp Fluid flow control system
US3800855A (en) * 1972-02-16 1974-04-02 V Bashkov Device for secondary cooling of round shaped ingots during casting of metal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2053947C3 (de) * 1970-11-03 1975-01-16 Demag Ag, 4100 Duisburg Verfahren und Vorrichtung zur Erzeugung von Kühlmittelstrahlen für die Abkühlung von Metallgießsträngen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499456A (en) * 1967-06-05 1970-03-10 Marotta Valve Corp Fluid flow control system
US3800855A (en) * 1972-02-16 1974-04-02 V Bashkov Device for secondary cooling of round shaped ingots during casting of metal

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598760A (en) * 1981-05-08 1986-07-08 Mannesmann Ag Cleaning roller tracks of withdrawal stands in machines for continuous casting
US5329779A (en) * 1993-02-09 1994-07-19 C.V.G. Siderurgica Del Orinoco, C.A. Method and apparatus for cooling workpieces
DE4403759A1 (de) * 1993-02-09 1994-08-18 Orinoco Siderurgica Verfahren und Vorrichtung zum Kühlen von Werkstücken
WO1995033573A1 (en) * 1994-06-03 1995-12-14 Dorr-Oliver Incorporated Improved high-pressure screen shower
US5494227A (en) * 1994-06-03 1996-02-27 Dorr-Oliver Incorporated High pressure screen shower
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
US6374901B1 (en) 1998-07-10 2002-04-23 Ipsco Enterprises Inc. Differential quench method and apparatus
KR100435459B1 (ko) * 1999-12-20 2004-06-10 주식회사 포스코 소둔로의 유동형 냉각장치
KR100467797B1 (ko) * 2000-11-09 2005-01-24 주식회사 포스코 연속소둔로의 스트립 급냉장치
US20090115113A1 (en) * 2005-08-01 2009-05-07 Ebner Industrieofenbau Ges.M.B.H Apparatus for cooling a metal strip
US7968046B2 (en) 2005-08-01 2011-06-28 Ebner Industrieofenbau Ges.M.B.H Apparatus for cooling a metal strip
US20090095438A1 (en) * 2006-01-11 2009-04-16 Uwe Plociennik Method and Apparatus for Continuous Casting
CN101351285B (zh) * 2006-01-11 2011-12-28 Sms西马格股份公司 用于连铸的方法和装置
US8522858B2 (en) 2006-01-11 2013-09-03 Sms Siemag Aktiengesellschaft Method and apparatus for continuous casting
US8596335B2 (en) 2006-01-11 2013-12-03 Sms Siemag Aktiengesellschaft Method and apparatus for continuous casting
CN101432086B (zh) * 2006-04-25 2011-09-07 西门子Vai金属技术两合公司 喷嘴调节装置
US20080115906A1 (en) * 2006-11-22 2008-05-22 Peterson Oren V Method and Apparatus for Horizontal Continuous Metal Casting in a Sealed Table Caster
US7451804B2 (en) 2006-11-22 2008-11-18 Peterson Oren V Method and apparatus for horizontal continuous metal casting in a sealed table caster
US11286539B2 (en) * 2017-11-20 2022-03-29 Primetals Technologies Japan, Ltd. Cooling apparatus for metal strip and continuous heat treatment facility for metal strip

Also Published As

Publication number Publication date
SE7407358L (it) 1975-01-28
GB1481220A (en) 1977-07-27
JPS5328129B2 (it) 1978-08-12
BR7406183D0 (pt) 1975-04-22
JPS5039631A (it) 1975-04-11
DE2435495A1 (de) 1975-02-13
FR2238550B1 (it) 1979-08-17
DE2435495C2 (de) 1983-11-03
CA1018348A (en) 1977-10-04
AT323921B (de) 1975-08-11
FR2238550A1 (it) 1975-02-21
SE409960B (sv) 1979-09-17
CH573780A5 (it) 1976-03-31
IT1016221B (it) 1977-05-30
ES427725A1 (es) 1976-08-01
BE817309A (fr) 1974-11-04

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