ES2445466B1 - OPTIMIZATION PROCEDURE FOR MIXING LEVER CUTTING LENGTH IN SEQUENTIAL COLORS OF STEELS OF DIFFERENT QUALITY. - Google Patents

OPTIMIZATION PROCEDURE FOR MIXING LEVER CUTTING LENGTH IN SEQUENTIAL COLORS OF STEELS OF DIFFERENT QUALITY. Download PDF

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Publication number
ES2445466B1
ES2445466B1 ES201231352A ES201231352A ES2445466B1 ES 2445466 B1 ES2445466 B1 ES 2445466B1 ES 201231352 A ES201231352 A ES 201231352A ES 201231352 A ES201231352 A ES 201231352A ES 2445466 B1 ES2445466 B1 ES 2445466B1
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Spain
Prior art keywords
steel
trough
casting
mixing
different quality
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 - Fee Related
Application number
ES201231352A
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Spanish (es)
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ES2445466R1 (en
ES2445466A2 (en
Inventor
Diana MIER VASALLO
Javier CIRIZA CORCUERA
Juan José LARAUDOGOITIA ELORTEGUI
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Sidenor Investigacion y Desarrollo SA
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Gerdau Investigacion y Desarrollo Europa SA
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Priority to ES201231352A priority Critical patent/ES2445466B1/en
Publication of ES2445466A2 publication Critical patent/ES2445466A2/en
Publication of ES2445466R1 publication Critical patent/ES2445466R1/en
Application granted granted Critical
Publication of ES2445466B1 publication Critical patent/ES2445466B1/en
Expired - Fee Related 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
    • B22D11/163—Controlling or regulating processes or operations for cutting cast stock
    • 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
    • B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • General Factory Administration (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

Procedimiento de optimización de la longitud de corte de palanquillas de mezcla en coladas secuenciales de aceros de diferente calidad.#Procedimiento de optimización de cálculo de la longitud de una palanquilla de mezcla en colada continua en la práctica de coladas secuenciales de diferente calidad, la cual está destinada a ser cortada como material de desecho, donde en el comienzo de dicho procedimiento, definido como tiempo cero en el estudio, se encuentra diluido, en una artesa, una cantidad inicial de un primer acero, con una composición del elemento i constituyente del acero: yo (Tn) en un volumen definido como Vo (m{sup,3}); y donde el procedimiento de optimización comprende las siguientes etapas:#a) evacuar dicho primer volumen de acero con un caudal de salida definido como Qs (m{sup,3}/min), el cual viene dado por la velocidad de colada, número de líneas de colada, formato final de la palanquilla;#b) alimentar, a partir de la etapa a), dicha artesa con un segundo acero con que comprende una segunda composición química; comprende una concentración determinada del elemento i definida como Ce (Tn i/Tn) y comprende un caudal de entrada máximo definido como Qe (m{sup,3}/min), correspondiente a una situación donde una corredera de paso está completamente abierta;#c) plantear un balance global a la artesa donde el caudal de entrada es igual al caudal de salida, más un término de acumulación definido como dV/dt; donde V es el volumen en la artesa;#d) plantear un balance por componentes a través de una ecuación diferencial;#e) resolver dicha ecuación diferencial determinando la evolución de la concentración de los elementos constituyentes de cada tipo de acero, a lo largo de dicha palanquilla de mezcla, en función del peso remanente en la artesa, formato a fabricar y composiciones objetivo de las coladas; y#f) calcular la longitud teórica de corte como un compromiso entre la longitud necesaria para alcanzar la composición objetivo de la segunda colada de dicho segundo acero y unas horquillas de fabricación fijadas.Procedure for optimizing the cutting length of mixing billets in sequential castings of steels of different quality # Optimization procedure for calculating the length of a mixing billet in continuous casting in the practice of sequential casting of different quality, which It is intended to be cut as waste material, where at the beginning of said procedure, defined as zero time in the study, an initial amount of a first steel is diluted in a trough, with a composition of the constituent element i steel: I (Tn) in a volume defined as Vo (m {sup, 3}); and where the optimization procedure comprises the following steps: #a) evacuate said first volume of steel with an output flow defined as Qs (m {sup, 3} / min), which is given by the casting speed, number of casting lines, final format of the billet; #b) feed, from step a), said trough with a second steel with which it comprises a second chemical composition; it comprises a certain concentration of the element i defined as Ce (Tn i / Tn) and comprises a maximum input flow defined as Qe (m {sup, 3} / min), corresponding to a situation where a passageway is completely open; #c) propose a global balance to the trough where the input flow is equal to the output flow, plus an accumulation term defined as dV / dt; where V is the volume in the trough; #d) propose a balance by components through a differential equation; #e) solve said differential equation by determining the evolution of the concentration of the constituent elements of each type of steel, along of said mixing billet, depending on the weight remaining in the trough, format to be manufactured and objective compositions of the laundry; and # f) calculate the theoretical cutting length as a compromise between the length necessary to reach the target composition of the second casting of said second steel and fixed manufacturing forks.

Description

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Claims (1)

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ES201231352A 2012-08-31 2012-08-31 OPTIMIZATION PROCEDURE FOR MIXING LEVER CUTTING LENGTH IN SEQUENTIAL COLORS OF STEELS OF DIFFERENT QUALITY. Expired - Fee Related ES2445466B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES201231352A ES2445466B1 (en) 2012-08-31 2012-08-31 OPTIMIZATION PROCEDURE FOR MIXING LEVER CUTTING LENGTH IN SEQUENTIAL COLORS OF STEELS OF DIFFERENT QUALITY.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201231352A ES2445466B1 (en) 2012-08-31 2012-08-31 OPTIMIZATION PROCEDURE FOR MIXING LEVER CUTTING LENGTH IN SEQUENTIAL COLORS OF STEELS OF DIFFERENT QUALITY.

Publications (3)

Publication Number Publication Date
ES2445466A2 ES2445466A2 (en) 2014-03-03
ES2445466R1 ES2445466R1 (en) 2014-04-03
ES2445466B1 true ES2445466B1 (en) 2014-09-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
ES201231352A Expired - Fee Related ES2445466B1 (en) 2012-08-31 2012-08-31 OPTIMIZATION PROCEDURE FOR MIXING LEVER CUTTING LENGTH IN SEQUENTIAL COLORS OF STEELS OF DIFFERENT QUALITY.

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101485913B1 (en) 2013-12-23 2015-01-26 주식회사 포스코 Method for continuous casting of mixed grade
CN110976803A (en) * 2019-12-19 2020-04-10 攀枝花钢城集团瑞钢工业有限公司 Continuous casting billet sizing control method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01258857A (en) * 1988-04-05 1989-10-16 Nippon Steel Corp Method for deciding length of component mixture in continuous casting

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ES2445466R1 (en) 2014-04-03
ES2445466A2 (en) 2014-03-03

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