EP2271450B1 - Kaltstrang für eine stranggiessanlage und verfahren zu dessen verwendung - Google Patents

Kaltstrang für eine stranggiessanlage und verfahren zu dessen verwendung Download PDF

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Publication number
EP2271450B1
EP2271450B1 EP09726659.7A EP09726659A EP2271450B1 EP 2271450 B1 EP2271450 B1 EP 2271450B1 EP 09726659 A EP09726659 A EP 09726659A EP 2271450 B1 EP2271450 B1 EP 2271450B1
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EP
European Patent Office
Prior art keywords
starting bar
blocking element
links
pivotation
mould
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.)
Active
Application number
EP09726659.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2271450A1 (de
Inventor
Stefan Rombs
Peter Jonen
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 Group GmbH
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SMS Group GmbH
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Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP2271450A1 publication Critical patent/EP2271450A1/de
Application granted granted Critical
Publication of EP2271450B1 publication Critical patent/EP2271450B1/de
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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
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/081—Starter bars
    • 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
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/085—Means for storing or introducing the starter bars in the moulds

Definitions

  • the invention relates to a cold strand for a continuous casting plant for casting a Metallistrangs, comprising a cold strand head, a transition piece and a link chain, wherein the transition piece between the cold strand head and the link chain is arranged, wherein the transition piece and / or the link chain of a number hingedly interconnected
  • the members are pivotable about a perpendicular to the longitudinal axis of the dummy bar extending transverse axis relative to each other.
  • the invention relates to a method for using such a cold strand.
  • a starter train of the generic type is used to start a continuous casting process in a continuous casting plant.
  • the mold of the continuous casting is closed at its output to the cold extrusion head in order to bring the melt in a first filling process in the mold can; the Katattrang head prevents the immediate exit of the melt from the mold.
  • After a first solidification of the forming strand is extended with the cold strand of the mold and promoted on the strand leadership of the continuous casting and a horizontal roller conveyor.
  • the cold strand is then fed back to the mold to stand for the next startup available.
  • top feeding the cold strand is circulated through the continuous caster, ie. H. he is pulled behind a horizontal roller conveyor up to the level of the casting platform and on a cold extruder carriage and promoted again towards Kokille
  • the cold strand head usually has a greater thickness than the following link chain, it comes with the flat resting of the dummy bar, for example on the cold extrudiate, sometimes to considerable tension in the joints; the limb-like cold strand bulges. Accordingly, there is a considerable load on the links or the joints, which causes wear, especially when the cold rod head rests with the transition elements on the cold extruder carriage. This is especially true if in a relative pivoting direction of the joints no bending of the colliding chain links is allowed. In this deployment and change position handling of the dummy bar is then problematic, especially if parts of the dummy bar are to be changed. For this purpose, it is then usually necessary to specify the cold strand by means of a crane to reduce the stresses in the joints.
  • the present invention has for its object to provide a cold strand of the type mentioned in such a way that it is possible without special measures, highpolsbetastungen in the joints of the dummy strand in the flat resting, especially on a cold extrudate to avoid. Furthermore, a method for its use should be proposed.
  • the solution of this object by the invention is characterized in that at least one joint between two articulated members of the dummy bar is formed so as to allow relative pivoting of the members about the transverse axis that is greater than any occurring during use of the dummy bar Swivel angle, wherein in or on the joint, a blocking element is arranged, which is arranged in a direction perpendicular to the longitudinal axis of the dummy bar or the member and movable perpendicular to the transverse axis, wherein the blocking element can assume a position in which the pivoting of the members through the Locking element is not affected, and can assume a position in which the pivoting the limbs in a pivoting direction is limited to a defined pivoting angle.
  • the blocking element is preferably arranged displaceably in a linear guide.
  • the blocking element preferably assumes its position solely by the action of gravity.
  • the provided with a blocking element joints can be arranged exclusively in the transition piece of the dummy bar.
  • the thickness of the cold-rod head is greater than the thickness of the link chain.
  • the method for using a dummy bar of the type described provides that the dummy bar is first moved from above into a mold, that it is then guided downwards by the mold along a strand guide, that it is then conveyed behind the strand guide on a horizontal roller conveyor in that it is then subsequently pulled upwards from the roller conveyor after decoupling from a hot strand onto a cold extrusion carriage located on a casting platform, that it then continues to move horizontally in the direction of the mold and finally, for the next sprue, is again inserted from above into the mold , So it is the "top feeding" provided.
  • the method is characterized in that the locking element is when entering the mold in the position in which the pivoting of the members is not affected by the blocking element.
  • the blocking element during the movement of the dummy bar down along the strand guide from the position in which the pivoting of the links is not affected by the blocking element, in moves the position in which the pivoting of the links is limited to a defined pivoting angle.
  • the blocking element is during the movement of the dummy bar on the horizontal roller conveyor in the position in which the pivoting of the members is limited to a defined pivoting angle.
  • the locking element can, however, move during the movement of the dummy bar up on the cold runner carriage from the position in which the pivoting of the links is limited to a defined pivot angle, in the position in which the pivoting of the links is not affected by the blocking element.
  • the blocking element is located during the horizontal movement of the dummy bar on the casting platform on the mold to in the position in which the pivoting of the links is not affected by the blocking element.
  • a vertically - as a result of gravity - movable support disk is moved in a corresponding slot, depending on the use status of the dummy bar, d. H. depending on the current location and the location of the dummy bar.
  • the support disc acting as a blocking element either allows a bending of two adjacent chain links or prevents them depending on the position of the locking element in the joint.
  • the proposed solution makes it possible to enable a low-wear operation of the dummy bar and improved changing conditions regardless of the thickness ratios (ratio of the thickness of the cold strand head to the thickness of the link chain) to achieve. Consequently, even with a flat support, the cold strand does not produce a "hump", which leads to the high stresses in the joints in the previously known solutions.
  • the proposed method of operating such a dummy string relies on the "top feeding" of the dummy bar and that the cold leg is used in a circular circulation, i. H. in the circulation system.
  • Fig. 1 is a cold strand 1 to see, which is used in a continuous casting plant.
  • the dummy bar has a longitudinal axis L; he has a cold strand head 2, whose geometry is adapted to the dimensions of a mold.
  • Behind the Cold strand head 2 is a transition piece 3 in the form of some articulated links 5, 6, to which in turn a link chain 4 connects.
  • the cold strand 1 is previously known, with reference to the above-mentioned documents relating to the prior art.
  • the cold strand head 2 has a thickness D which is greater than the thickness d of the link chain. 4
  • two adjacent members 5, 6 can pivot about a transverse axis Q relative to one another at a joint 7 (pivoting angle ⁇ , s. Fig. 3a ); the transverse axis Q is perpendicular to the longitudinal axis L.
  • Fig. 2 the circulation of the dummy bar 1 is illustrated by a continuous casting, the individual stations are only indicated schematically.
  • the cold strand 1 enters a mold 10.
  • the cold strand 1 is guided along a strand guide 11.
  • the cold strand 1 in the strand guide as well as on a roller conveyor 12 is supported horizontally resting.
  • a lifting means not shown up to the level of a casting platform and pulled on a cold extruder carriage 13.
  • the cold strand located on the cold extrudate 13 is then finally moved again in the direction of the mold 10 in order to be available for the next use. If necessary, an exchange of parts of the dummy bar 1 can also take place on the cold extrudate 13 at location V in order to adapt it, for example, to a different geometry of a mold.
  • FIGS. 3a to 3h are - corresponding to the respective marked points along the circulation of the dummy bar 1 - two members 5 and 6 sketched, which include a hinge 7, which, if necessary, a relative pivoting of the members 5, 6 by a pivot angle ⁇ (s. Fig. 3a ), but under certain conditions prevents it.
  • the permissible pivot angle ⁇ of the joint 7 is greater than is required in all operating situations of the dummy bar 1, ie the pivotability of the links 5, 6 is generally not limited.
  • FIGS. 3a to 3h show the enlarged sections of the members 5, 6 together with joint 7 assigned to the locations I - V according to FIG. 2 in the course of the path, the cold strand 1 travels in its circulation.
  • a blocking element 8 is inserted in the linear guide 9, a blocking element 8 is inserted.
  • the blocking element 8 shifts solely by its own weight in the respective end region of the linear guide 9, d. H. in the blocking or in the release position A, B.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP09726659.7A 2008-04-02 2009-03-19 Kaltstrang für eine stranggiessanlage und verfahren zu dessen verwendung Active EP2271450B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008016759A DE102008016759B4 (de) 2008-04-02 2008-04-02 Kaltstrang für eine Stranggießanlage und Verfahren zu dessen Verwendung
PCT/EP2009/002035 WO2009121492A1 (de) 2008-04-02 2009-03-19 Kaltstrang für eine stranggiessanlage und verfahren zu dessen verwendung

Publications (2)

Publication Number Publication Date
EP2271450A1 EP2271450A1 (de) 2011-01-12
EP2271450B1 true EP2271450B1 (de) 2017-09-20

Family

ID=40756817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09726659.7A Active EP2271450B1 (de) 2008-04-02 2009-03-19 Kaltstrang für eine stranggiessanlage und verfahren zu dessen verwendung

Country Status (9)

Country Link
US (1) US8167025B2 (zh)
EP (1) EP2271450B1 (zh)
JP (1) JP5107459B2 (zh)
KR (1) KR101246069B1 (zh)
CN (1) CN101983112B (zh)
CA (1) CA2719060C (zh)
DE (1) DE102008016759B4 (zh)
ES (1) ES2652588T3 (zh)
WO (1) WO2009121492A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010007660B4 (de) 2010-01-12 2023-06-01 Sms Group Gmbh Stranggießmaschine
EP3012042B1 (en) * 2013-06-20 2018-05-02 JP Steel Plantech Co. Continuous casting device and method for using same
DE102013213650A1 (de) * 2013-07-12 2015-01-15 Siemens Vai Metals Technologies Gmbh Automatische Kaltstrangzentrierung auf einem Kaltstrangwagen
CN105458197B (zh) * 2016-01-18 2018-04-03 中国重型机械研究院股份公司 一种引锭链
US11109895B2 (en) 2016-10-26 2021-09-07 Warsaw Orthopedic, Inc. Spinal construct
EP3663017A1 (de) 2018-12-04 2020-06-10 Primetals Technologies Austria GmbH Überwachen eines verschleisszustands einer strangführungsrolle einer stranggiessanlage

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581808A (en) * 1968-12-26 1971-06-01 Gamma Engineering Ltd Starting device for continuous casting machine
CH504256A (de) * 1970-01-27 1971-03-15 Concast Ag Anfahrkopf zum Giessen von Strangquerschnitten unterschiedlicher Breiten in einer Stranggiessanlage
AT340083B (de) * 1976-01-16 1977-11-25 Voest Ag Anfahrstrang
US4074754A (en) * 1976-09-27 1978-02-21 Exxon Production Research Company Method for producing geothermal energy and minerals
JPS5546363Y2 (zh) * 1977-02-01 1980-10-30
AT364473B (de) * 1980-06-30 1981-10-27 Voest Alpine Ag Anfahrstrang fuer stranggiessanlagen
US4383571A (en) * 1981-03-16 1983-05-17 Gladwin Corporation Dummy bar for continuous casting equipment
US4632175A (en) * 1985-05-09 1986-12-30 Continuous Casting Systems Inc. Continuous casting machine
CN2222021Y (zh) * 1995-04-05 1996-03-13 衡阳有色冶金机械总厂 连铸机刚性引锭杆存放传动装置
CN2317977Y (zh) * 1997-12-08 1999-05-12 王国忱 一种连铸机用的钢弹引锭杆
AT501860B1 (de) * 2005-06-08 2007-03-15 Voest Alpine Ind Anlagen Anfahrstrang für eine stranggiessanlage
DE102006025503A1 (de) * 2006-05-23 2007-11-29 Andreas Peiker Verbindungseinrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2271450A1 (de) 2011-01-12
CA2719060A1 (en) 2009-10-08
KR101246069B1 (ko) 2013-03-21
CN101983112A (zh) 2011-03-02
ES2652588T3 (es) 2018-02-05
JP2011515226A (ja) 2011-05-19
US20110094704A1 (en) 2011-04-28
DE102008016759A1 (de) 2009-10-15
CN101983112B (zh) 2013-06-19
KR20100114539A (ko) 2010-10-25
US8167025B2 (en) 2012-05-01
JP5107459B2 (ja) 2012-12-26
WO2009121492A1 (de) 2009-10-08
CA2719060C (en) 2012-05-22
DE102008016759B4 (de) 2010-08-05

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