EP0008692B2 - Verfahren zur Vermeidung von Beschädigungen an Strangführungselementen einer Stranggiessanlage für Stahl - Google Patents

Verfahren zur Vermeidung von Beschädigungen an Strangführungselementen einer Stranggiessanlage für Stahl Download PDF

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Publication number
EP0008692B2
EP0008692B2 EP79102851A EP79102851A EP0008692B2 EP 0008692 B2 EP0008692 B2 EP 0008692B2 EP 79102851 A EP79102851 A EP 79102851A EP 79102851 A EP79102851 A EP 79102851A EP 0008692 B2 EP0008692 B2 EP 0008692B2
Authority
EP
European Patent Office
Prior art keywords
strand
strand guide
elements
guide elements
guide
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
EP79102851A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0008692B1 (de
EP0008692A1 (de
Inventor
Manfred Dr. Dipl.-Ing. Wolf
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 Concast AG
Original Assignee
Concast Holding AG
Concast 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4341930&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0008692(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Concast Holding AG, Concast AG filed Critical Concast Holding AG
Priority to AT79102851T priority Critical patent/ATE7T1/de
Publication of EP0008692A1 publication Critical patent/EP0008692A1/de
Publication of EP0008692B1 publication Critical patent/EP0008692B1/de
Application granted granted Critical
Publication of EP0008692B2 publication Critical patent/EP0008692B2/de
Expired 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock

Definitions

  • the strand may become stuck between the guide rollers while the strand is being pulled out, in connection with overloading of the same or of supporting structure parts. If the pull-out force remains the same, this leads to a deformation or destruction of these guide rollers or of the supporting structure parts.
  • the present invention when using the method of conveying a broken strand without interrupting the pull-out process or when pulling out a strand bulged during a standstill, avoids the disadvantages associated with possible overloading of system parts, as described above. It has the task of preventing deformations of the support structure and the associated quality-reducing influences on the cast product during the pull-out process. This procedure eliminates the risk of damage to the elements of the strand guide due to overstressing. It is possible to use strongly dimensioned drivers to pull out a strand that is stuck in the strand guide or tends to get stuck, while avoiding overloading of system parts at risk.
  • the pull-out force of these drivers can be set immediately and risk-free to the highest possible values, matched to the maximum permissible load index of the material used. A dynamic, if necessary jerky, pulling away of a strand which is welded with system parts is facilitated.
  • the stresses occurring in the support arm of the first zone of the strand guide are measured.
  • Molten steel is poured into the mold 1, and a partially solidified strand 11 is continuously guided and supported in the strand guide and pulled out of the mold 1 by the driven rollers 3.
  • the strand has deformations which prevent it from being conveyed out undisturbed and generate forces directed against the direction of extraction, or if the strand is broken with hardened steel with strand guide parts, e.g. connected to the cooling grid 5 and thus immovable, there is a slipping of the drive rollers during pulling out with ordinary drivers. This is avoided with a more dimensioned drive straightening unit, and the forces required to break the connection can be entirely transferred to the strand.
  • strain gauges 12 attached to the upper side (tension side) of the support arm 10
  • tensile stresses occurring therein are determined, the measurement values are conducted via a line 13 to a measuring and control device 14 and there with predetermined maximum values which are below those values. which could lead to a plastic deformation of the support structure.
  • the control and regulating element 14 gives an impulse to interrupt the pull-out process. This prevents damage to strand guide parts.
  • an optical and / or acoustic alarm signal can also be given, as a result of which the operating personnel are made aware of a possible overload situation and are prompted to take action.
  • strain gauges 12 other voltage measuring devices, such as Load cells, find use.
  • strain gauge is not limited to the top of the load arm 10 of the first zone 4, but can be freely selected wherever an overload of strand guide parts and / or support guide elements leading to damage must be feared. For example, all pairs of guide rollers are secured against bulging strands in this way. Other geometrical deviations which lead to damage in the continuous casting installation, due to exceptional thermal distortion, can also be indicated and appropriate countermeasures can be taken as a result. It should be pointed out that the invention is not only applicable to the continuous slab caster shown in the figure, but can be used in any continuous caster with continuous molds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Ropes Or Cables (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP79102851A 1978-08-11 1979-08-08 Verfahren zur Vermeidung von Beschädigungen an Strangführungselementen einer Stranggiessanlage für Stahl Expired EP0008692B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79102851T ATE7T1 (de) 1978-08-11 1979-08-08 Verfahren zur vermeidung von beschaedigungen an strangfuehrungselementen einer stranggiessanlage fuer stahl

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8558/78 1978-08-11
CH855878A CH630821A5 (de) 1978-08-11 1978-08-11 Verfahren zur vermeidung von beschaedigungen an strangfuehrungselementen einer stranggiessanlage fuer stahl.

Publications (3)

Publication Number Publication Date
EP0008692A1 EP0008692A1 (de) 1980-03-19
EP0008692B1 EP0008692B1 (de) 1981-01-28
EP0008692B2 true EP0008692B2 (de) 1986-04-02

Family

ID=4341930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102851A Expired EP0008692B2 (de) 1978-08-11 1979-08-08 Verfahren zur Vermeidung von Beschädigungen an Strangführungselementen einer Stranggiessanlage für Stahl

Country Status (10)

Country Link
US (1) US4317482A (pt)
EP (1) EP0008692B2 (pt)
JP (1) JPS5524800A (pt)
AT (1) ATE7T1 (pt)
BR (1) BR7905115A (pt)
CA (1) CA1130982A (pt)
CH (1) CH630821A5 (pt)
DE (1) DE2960098D1 (pt)
ES (1) ES483927A1 (pt)
ZA (1) ZA794099B (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037048A1 (de) * 1980-10-01 1982-04-29 Böhler AG, 4000 Düsseldorf Verfahren zur steuerung des strangabzuges
WO1983004199A1 (en) * 1982-05-31 1983-12-08 Nippon Kokan Kabushiki Kaisha Method of monitoring for damage to solidified shell of metal casting produce during removal of casting from horizontal continuous casting machine
AT378707B (de) * 1983-01-11 1985-09-25 Voest Alpine Ag Verfahren zum ueberwachen einer bogenstranggiessanlage
JPS60257958A (ja) * 1984-06-05 1985-12-19 Sumitomo Metal Ind Ltd 連続鋳造の異常検出方法
DE4210495C1 (pt) * 1992-03-31 1993-04-15 Ibvt Ingenieurbuero Fuer Verfahrenstechnik Gmbh, 4000 Duesseldorf, De
US5648110A (en) * 1995-06-06 1997-07-15 Penwest Foods Co. French fry formulations and method of making
US6648059B2 (en) * 2001-02-22 2003-11-18 Aktiebolaget Skf Method for detecting a roller failure
CN1329146C (zh) * 2005-01-31 2007-08-01 宝山钢铁股份有限公司 薄带连铸粘辊在线预报方法
AT512214B1 (de) 2011-12-05 2015-04-15 Siemens Vai Metals Tech Gmbh Prozesstechnische massnahmen in einer stranggiessmaschine bei giessstart, bei giessende und bei der herstellung eines übergangsstücks
CN110252982B (zh) * 2019-06-28 2021-05-04 上海二十冶建设有限公司 方坯连铸机扇形段安装调整方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025579A (en) * 1958-06-17 1962-03-20 British Iron Steel Research Continuous casting of metals
US3040397A (en) * 1958-12-17 1962-06-26 Koppers Co Inc Continuous casting machine
US3047915A (en) * 1959-06-11 1962-08-07 Head Wrightson & Co Ltd Apparatus for continuous casting of steel
US3321008A (en) * 1963-10-18 1967-05-23 M E A Inc Apparatus for the continuous casting of metal
FR2144750B1 (pt) * 1971-07-02 1976-08-06 Mannesmann Ag
US3861456A (en) * 1971-08-24 1975-01-21 United States Steel Corp Mechanism for controlling forces on a strand as it solidifies
DE2340636C3 (de) * 1973-08-10 1980-04-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Einrichtung zum schrittweisen Ausziehen eines Stranges aus einer horizontalen Stranggießkokille
SU639424A3 (ru) * 1975-02-04 1978-12-25 Маннесманн Аг, (Фирма) Способ непрерывной отливки стального слитка
US4148349A (en) * 1976-05-08 1979-04-10 Yutaka Sumita Method for controlling slippage between rolls and a slab in a continuous compression casting apparatus

Also Published As

Publication number Publication date
CH630821A5 (de) 1982-07-15
EP0008692B1 (de) 1981-01-28
CA1130982A (en) 1982-09-07
DE2960098D1 (en) 1981-03-19
ATE7T1 (de) 1981-02-15
BR7905115A (pt) 1980-04-29
EP0008692A1 (de) 1980-03-19
US4317482A (en) 1982-03-02
ZA794099B (en) 1980-08-27
ES483927A1 (es) 1980-05-16
JPS5524800A (en) 1980-02-22

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