EP1043096B1 - Verfahren zur Bestimmung der Reibung zwischen Strangschale und Kokille beim Stranggiessen - Google Patents

Verfahren zur Bestimmung der Reibung zwischen Strangschale und Kokille beim Stranggiessen Download PDF

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Publication number
EP1043096B1
EP1043096B1 EP00106592A EP00106592A EP1043096B1 EP 1043096 B1 EP1043096 B1 EP 1043096B1 EP 00106592 A EP00106592 A EP 00106592A EP 00106592 A EP00106592 A EP 00106592A EP 1043096 B1 EP1043096 B1 EP 1043096B1
Authority
EP
European Patent Office
Prior art keywords
friction
mould
mold
forces
continuous casting
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 - Lifetime
Application number
EP00106592A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1043096A1 (de
Inventor
Albrecht Dr. Girgensohn
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 Schloemann Siemag AG
Schloemann Siemag 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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP1043096A1 publication Critical patent/EP1043096A1/de
Application granted granted Critical
Publication of EP1043096B1 publication Critical patent/EP1043096B1/de
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
    • B22D11/16—Controlling or regulating processes or operations
    • 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
    • B22D11/166—Controlling or regulating processes or operations for mould oscillation
    • 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
    • B22D11/053—Means for oscillating the moulds

Definitions

  • the invention relates to a method for determining the friction between Strand shell and mold during continuous casting by means of an oscillating mold, whereby using regulated double-acting hydraulic cylinders the pressures each of both chambers of all oscillation cylinders.
  • the frictional force between the mold wall and the strand shell is determined by a normal force caused, which acts on the strand shell.
  • the normal force mainly arises as a result of the ferrostatic pressure that the steel melt has on the inside of the strand Strand shell exercises.
  • An additional portion of the frictional force is from the conical Employment of the mold narrow sides caused.
  • the direction of the frictional force changes periodically during the oscillation movement by 180 °.
  • conventional molds are stationary in both directions Condition about the same coefficient of friction reached.
  • the influence of the strand shell bending on the normal force is the frictional force in molds with a decreasing cross-section during the phase of the positive strip significantly higher than during the negative strip.
  • the measurement of the frictional relationships between the strand shell and Chill mold is also essential because the mold friction acts as a pulsating disturbance variable on the strand.
  • the document JP 61 052973 A describes a method for predicting breakthroughs in continuous casting with oscillating mold, the oscillation by double-acting hydraulic cylinders is produced.
  • the pressures of the pressure and traction chamber of the hydraulic cylinder are applied measured the feed lines.
  • the state of friction i.e. the frictional force between Strand shell and mold wall is from a change in the difference between these two Press known. From this, an upcoming breakthrough can be predicted, if these pressures are measured continuously.
  • the object of the invention to provide a method of the type mentioned in the preamble of claim 1, which while avoiding the aforementioned disadvantages and difficulties with comparatively little technical effort and without any noteworthy Modifications to the mold or oscillation device delivers clean measurement signals, no external sensors and / or vibration models required and continuously online for monitoring a trouble-free operating state necessary operating data, especially for determining the friction between Strand shell and mold supplies.
  • the method according to the invention for determining the friction between the strand shell and mold during continuous casting can be used with all continuous casting machines use that are equipped with a hydraulic mold oscillation.
  • This data is recorded at a specified measuring frequency. from that can be placed online and offline at any time between strand shell and calculate the mold friction force.
  • An embodiment of the method according to the invention provides that the determined Frictional forces are assigned to the current casting speed. In order to a change in the casting speed is sufficiently compensated as a disruptive factor.
  • a further embodiment of the method according to the invention provides that the Acceleration forces depending on the respective stroke position in the cold run is determined without friction forces, with corresponding acceleration forces including the frictional forces in intact casting operation compared TARGET values of the permissible frictional forces are derived.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Devices For Molds (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
EP00106592A 1999-04-03 2000-03-28 Verfahren zur Bestimmung der Reibung zwischen Strangschale und Kokille beim Stranggiessen Expired - Lifetime EP1043096B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19915269A DE19915269A1 (de) 1999-04-03 1999-04-03 Verfahren zur Bestimmung der Reibung zwischen Strangschale und Kokille beim Stranggießen
DE19915269 1999-04-03

Publications (2)

Publication Number Publication Date
EP1043096A1 EP1043096A1 (de) 2000-10-11
EP1043096B1 true EP1043096B1 (de) 2004-05-12

Family

ID=7903518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00106592A Expired - Lifetime EP1043096B1 (de) 1999-04-03 2000-03-28 Verfahren zur Bestimmung der Reibung zwischen Strangschale und Kokille beim Stranggiessen

Country Status (9)

Country Link
US (1) US6487504B1 (ja)
EP (1) EP1043096B1 (ja)
JP (1) JP2000317596A (ja)
KR (1) KR100704181B1 (ja)
CN (2) CN1269271A (ja)
AT (1) ATE266489T1 (ja)
CA (1) CA2303641A1 (ja)
DE (2) DE19915269A1 (ja)
MX (1) MXPA00003247A (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101204955B1 (ko) 2010-07-29 2012-11-26 현대제철 주식회사 몰드 내 마찰력 감시 장치 및 그 방법
KR101477117B1 (ko) * 2012-06-28 2014-12-29 현대제철 주식회사 연속주조시 브레이크아웃 방지 방법
CN110579300B (zh) * 2019-08-20 2022-10-25 北京数钰科技发展有限公司 结晶器与铸坯间摩擦力动态分析方法及装置、电子设备
CN110517240B (zh) * 2019-08-22 2022-06-03 联峰钢铁（张家港）有限公司 一种连铸机状态判断方法及装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152972A (ja) * 1984-08-24 1986-03-15 Nippon Kokan Kk <Nkk> 連続鋳造におけるブレ−クアウト予知方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893502A (en) * 1974-05-31 1975-07-08 United States Steel Corp Method and mechanism for indicating mold friction in a continuous-casting machine
GB1556616A (en) * 1976-06-18 1979-11-28 British Steel Corp Steelmaking
IT1117559B (it) * 1978-01-17 1986-02-17 Centre Rech Metallurgique Procedimento e dispositivo di controllo e di regolazione della colata continua dei metalli
DE3005801C2 (de) * 1980-02-13 1983-11-10 Mannesmann AG, 4000 Düsseldorf Verfahren zur Vermeidung von Durchbrüchen in Stranggießanlagen
AT366607B (de) * 1980-07-11 1982-04-26 Voest Alpine Ag Einrichtung an einer oszillierenden stranggiess- kokille
US4566526A (en) * 1982-09-27 1986-01-28 Concast, Incorporated Method and apparatus for semi-horizontal continuous casting
JPS6152974A (ja) * 1984-08-24 1986-03-15 Nippon Kokan Kk <Nkk> 連続鋳造におけるブレ−クアウト予知方法
JPH0235622B2 (ja) * 1984-08-24 1990-08-13 Nippon Kokan Kk Renzokuchuzoniokerubureekuautoyochihoho
AT381878B (de) * 1984-09-10 1986-12-10 Voest Alpine Ag Stranggiesskokille
DE3543790A1 (de) * 1985-12-09 1987-06-11 Mannesmann Ag Oszillationsvorrichtung
EP0286862B1 (de) * 1987-04-13 1992-05-13 Thyssen Stahl Aktiengesellschaft Verfahren zum Herstellen eines Stahlbandes
LU88393A1 (fr) * 1993-08-20 1995-03-01 Wurth Paul Sa Lingotière de coulée continue
DE19725433C1 (de) * 1997-06-16 1999-01-21 Schloemann Siemag Ag Verfahren und Vorrichtung zur Durchbruchfrüherkennung beim Stranggießen von Stahl mit einer oszillierenden Kokille

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152972A (ja) * 1984-08-24 1986-03-15 Nippon Kokan Kk <Nkk> 連続鋳造におけるブレ−クアウト予知方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 216 (M - 502) 29 July 1986 (1986-07-29) *

Also Published As

Publication number Publication date
KR100704181B1 (ko) 2007-04-06
KR20000071539A (ko) 2000-11-25
CA2303641A1 (en) 2000-10-03
DE19915269A1 (de) 2000-10-26
CN101391289A (zh) 2009-03-25
DE50006374D1 (de) 2004-06-17
EP1043096A1 (de) 2000-10-11
JP2000317596A (ja) 2000-11-21
CN1269271A (zh) 2000-10-11
US6487504B1 (en) 2002-11-26
MXPA00003247A (es) 2004-10-28
ATE266489T1 (de) 2004-05-15

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