EP0008692A1 - Procédé pour éviter d'endommager les galets de guidage de la coulée d'un dispositif de coulée continue pour l'acier - Google Patents

Procédé pour éviter d'endommager les galets de guidage de la coulée d'un dispositif de coulée continue pour l'acier Download PDF

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Publication number
EP0008692A1
EP0008692A1 EP79102851A EP79102851A EP0008692A1 EP 0008692 A1 EP0008692 A1 EP 0008692A1 EP 79102851 A EP79102851 A EP 79102851A EP 79102851 A EP79102851 A EP 79102851A EP 0008692 A1 EP0008692 A1 EP 0008692A1
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EP
European Patent Office
Prior art keywords
strand
strand guide
pull
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.)
Granted
Application number
EP79102851A
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German (de)
English (en)
Other versions
EP0008692B2 (fr
EP0008692B1 (fr
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(A1) "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/fr
Application granted granted Critical
Publication of EP0008692B1 publication Critical patent/EP0008692B1/fr
Publication of EP0008692B2 publication Critical patent/EP0008692B2/fr
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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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock

Definitions

  • the invention relates to a method for avoiding damage to strand guide elements of a continuous casting plant for steel.
  • 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, described above. It sets itself the task of preventing the destruction of guide elements such as rollers or deformations of elements of the support structure leading to deviations in the strand guide geometry, with the associated quality-reducing influences on the cast product, during the pull-out process.
  • this object is achieved in that during the pulling out of strands which are undesirably deformed or welded by leaked steel with strand guide parts, the pull-out forces acting there are determined at selected points of the strand guide, the measured values are compared with predetermined maximum values which prevent damage to the strand guide, and at the same Exceeding an impulse to interrupt the pull-out process is given.
  • This procedure eliminates the risk of damage to the elements of the strand guide due to excessive stress. It is possible to use strongly dimensioned drivers to pull out a strand which is stuck in the strand guide or tends to get stuck, while avoiding overloading of endangered system parts.
  • 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 are measured.
  • This drawing shows a continuous casting installation, consisting of a continuous mold 1 with a downstream strand guide subdivided into individual segments, and a subsequent drive funnel 2 with driven and non-driven rollers 3.
  • the first zone 4 of this strand guide is composed of a cooling grid 5 and one several roller pairs existing section 6 of the roller guide. It is supported by means of trunnions 7 in bearing shells 8 of a support arm 10 fastened to the support structure 9 of the strand guide.
  • the strand has deformations that hinder undisturbed conveying out and generate forces directed against the direction of extraction, or if the strand is broken up with hardened steel with strand guide parts, for example connected to the cooling grill 5 and therefore immobile, it occurs during the pulling out of ordinary drivers to cause the drive rollers to slip. This is avoided with a larger dimensioned leveling unit and the forces required to break the connection can be completely 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.
  • the arrangement of the 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 leadership roles. pairs can be secured against bulging strands in this way.
  • the setting of the rollers can be controlled with the aid of the overload safeguards described above.
  • Other geometrical deviations in the continuous casting installation which lead to damage can also be caused by exceptional thermal delay, indicated and appropriate countermeasures are taken. 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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Ropes Or Cables (AREA)
EP79102851A 1978-08-11 1979-08-08 Procédé pour éviter d'endommager les galets de guidage de la coulée d'un dispositif de coulée continue pour l'acier Expired EP0008692B2 (fr)

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

Publications (3)

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

Family

ID=4341930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102851A Expired EP0008692B2 (fr) 1978-08-11 1979-08-08 Procédé pour éviter d'endommager les galets de guidage de la coulée d'un dispositif de coulée continue pour l'acier

Country Status (10)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049238A2 (fr) * 1980-10-01 1982-04-07 Böhler Aktiengesellschaft Procédé de commande pour l'extraction de barres
EP0111000A1 (fr) * 1982-05-31 1984-06-20 Nippon Kokan Kabushiki Kaisha Procede de controle d'endommagements d'une coquille solidifiee d'une piece coulee metallique produits pendant le demoulage de la piece coulee d'une machine de moulage horizontale en continu
CN110252982A (zh) * 2019-06-28 2019-09-20 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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (fr) * 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776298A (en) * 1971-07-02 1973-12-04 Mannesmann Ag Apparatus for controlling the pressure force in multi-roll drives for equipment withdrawing an ingot from a continuous casting machine along a curved path
US3861456A (en) * 1971-08-24 1975-01-21 United States Steel Corp Mechanism for controlling forces on a strand as it solidifies
DE2340636A1 (de) * 1973-08-10 1975-02-27 Siemens Ag Einrichtung zum schrittweisen ausziehen eines stranges aus einer horizontalen stranggiesskokille einer stranggiessanlage
DE2504986B2 (de) * 1975-02-04 1977-05-18 Mannesmann AG, 4000 Düsseldorf Verfahren und vorrichtung zur kontrolle und vermeidung einer kritischen verformung der strangschale
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

Family Cites Families (4)

* 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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776298A (en) * 1971-07-02 1973-12-04 Mannesmann Ag Apparatus for controlling the pressure force in multi-roll drives for equipment withdrawing an ingot from a continuous casting machine along a curved path
US3861456A (en) * 1971-08-24 1975-01-21 United States Steel Corp Mechanism for controlling forces on a strand as it solidifies
DE2340636A1 (de) * 1973-08-10 1975-02-27 Siemens Ag Einrichtung zum schrittweisen ausziehen eines stranges aus einer horizontalen stranggiesskokille einer stranggiessanlage
DE2504986B2 (de) * 1975-02-04 1977-05-18 Mannesmann AG, 4000 Düsseldorf Verfahren und vorrichtung zur kontrolle und vermeidung einer kritischen verformung der strangschale
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049238A2 (fr) * 1980-10-01 1982-04-07 Böhler Aktiengesellschaft Procédé de commande pour l'extraction de barres
EP0049238A3 (en) * 1980-10-01 1982-05-05 Boehler Ag Method of controlling the discharge of billets
EP0111000A1 (fr) * 1982-05-31 1984-06-20 Nippon Kokan Kabushiki Kaisha Procede de controle d'endommagements d'une coquille solidifiee d'une piece coulee metallique produits pendant le demoulage de la piece coulee d'une machine de moulage horizontale en continu
EP0111000A4 (fr) * 1982-05-31 1984-09-19 Nippon Kokan Kk Procede de controle d'endommagements d'une coquille solidifiee d'une piece coulee metallique produits pendant le demoulage de la piece coulee d'une machine de moulage horizontale en continu.
CN110252982A (zh) * 2019-06-28 2019-09-20 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
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

Also Published As

Publication number Publication date
CH630821A5 (de) 1982-07-15
ATE7T1 (de) 1981-02-15
BR7905115A (pt) 1980-04-29
EP0008692B2 (fr) 1986-04-02
ES483927A1 (es) 1980-05-16
DE2960098D1 (en) 1981-03-19
ZA794099B (en) 1980-08-27
JPS5524800A (en) 1980-02-22
EP0008692B1 (fr) 1981-01-28
CA1130982A (fr) 1982-09-07
US4317482A (en) 1982-03-02

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