ES2663508A1 - System and procedure to control the recrystallization of a metal tubular piece (Machine-translation by Google Translate, not legally binding) - Google Patents

System and procedure to control the recrystallization of a metal tubular piece (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2663508A1
ES2663508A1 ES201730565A ES201730565A ES2663508A1 ES 2663508 A1 ES2663508 A1 ES 2663508A1 ES 201730565 A ES201730565 A ES 201730565A ES 201730565 A ES201730565 A ES 201730565A ES 2663508 A1 ES2663508 A1 ES 2663508A1
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Spain
Prior art keywords
tubular piece
furnace
recrystallization
translation
procedure
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Granted
Application number
ES201730565A
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Spanish (es)
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ES2663508B1 (en
Inventor
Manel ANTEQUERA MEDINA
Lluís Maria RIERA FONTANA
Raül OLMEDO GORDI
Núria FERRER CRUSELLAS
Xavier CLOSA ROIG
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La Farga Yourcoppersolutions SA
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La Farga Tub SL
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Priority to ES201730565A priority Critical patent/ES2663508B1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/60—Continuous furnaces for strip or wire with induction heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

System and procedure for controlling the recrystallization of a metallic tubular piece through an induction furnace that allows to obtain a metallic tubular piece in which the crystals of its metallic crystalline structure are of small dimensions, preferably less than 500 microns, to allow its easy posterior deformation, from the detection of the induced currents generated in two inductor elements located one of them in a section of the tubular piece before it enters the furnace and the other of them in a section of the tubular piece after of the exit of the furnace and of the subsequent regulation of the power of the furnace and of the speed of displacement of the platform through which the tubular piece is introduced in the furnace. (Machine-translation by Google Translate, not legally binding)

Description

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El procedimiento de control de la recristalización de una pieza tubular según la invención se aplica cuando al menos un extremo de la pieza tubular ha salido por la salida del horno y un extremo opuesto de la pieza tubular aún no ha entrado en el horno, comprendiendo dicho procedimiento las siguientes etapas: The method of controlling the recrystallization of a tubular part according to the invention is applied when at least one end of the tubular part has exited through the oven exit and an opposite end of the tubular part has not yet entered the oven, said said Procedure the following stages:

-Situar un elemento inductor en un tramo de la pieza tubular que se encuentra antes de la entrada al horno; -Situar otro elemento inductor en un tramo de la pieza tubular que se encuentra después de la salida del horno; -Generar corriente alterna suficiente, a través de por lo menos un generador de -Locate an inductor element in a section of the tubular part that is before entering the oven; -Locate another inductor element in a section of the tubular part that is located after the oven leaves; -Generate enough alternating current, through at least one generator

corriente alterna de frecuencia variable, para alimentar los dos elementos inductores; -Alimentar dichos dos elementos inductores con el generador de corriente alterna; -Detectar, a través de un equipo detector de corrientes inducidas, las corrientes alternating current of variable frequency, to feed the two inductor elements; - Feed said two inductor elements with the AC generator; -Detect, through an induced current detection equipment, the currents

inducidas generadas en los elementos inductores y calcular la diferencia entre las tensiones que generan dichas corrientes inducidas, transmitiendo dicho valor a unos medios de control configurados para regular la potencia eléctrica del horno y/o la velocidad de desplazamiento de la plataforma del horno de tal manera que si: inductors generated in the inductor elements and calculate the difference between the voltages generated by said induced currents, transmitting said value to control means configured to regulate the electric power of the furnace and / or the travel speed of the furnace platform in such a way yes:

o El valor de la diferencia de las tensiones está por encima de un 60% del valor máximo de la diferencia entre las tensiones que generan dichas corrientes inducidas, los medios de control fijan la velocidad de desplazamiento de la o The value of the voltage difference is above 60% of the maximum value of the difference between the voltages generated by these induced currents, the control means set the travel speed of the

2 plataforma entre un 95% -100 % de su nivel máximo y la potencia eléctrica del horno de inducción entre un 60%-80% del máximo de potencia eléctrica del horno de inducción. Se ha de señalar que en este caso la recristalización que está realizando el horno de inducción es muy buena por lo que se puede trabajar a una 2 platform between 95% -100% of its maximum level and the electrical power of the induction furnace between 60% -80% of the maximum electrical power of the induction furnace. It should be noted that in this case the recrystallization that is being carried out by the induction furnace is very good, so it is possible to work at a

2 velocidad máxima de desplazamiento de la plataforma y a una elevada potencia, ofreciéndose una gran productividad así como un ahorro energético. 2 maximum speed of displacement of the platform and to a high power, offering a great productivity as well as an energetic saving.

o El valor de la diferencia de las tensiones está entre un 50% y un 60% del valor máximo de la diferencia entre las tensiones que generan dichas corrientes inducidas, los medios de control fijan la velocidad de desplazamiento de la plataforma entre un 95% -100% de su nivel máximo y la potencia eléctrica del horno de inducción entre un 80%-100% del máximo de potencia eléctrica del horno de inducción. En este caso, para mantener una buena capacidad de producción, se aumenta la potencia eléctrica del horno. o The value of the difference in voltages is between 50% and 60% of the maximum value of the difference between the voltages generated by these induced currents, the control means set the platform's travel speed between 95% - 100% of its maximum level and the electrical power of the induction furnace between 80% -100% of the maximum electrical power of the induction furnace. In this case, to maintain a good production capacity, the electric power of the oven is increased.

o El valor de la diferencia de las tensiones está entre un 37,5% y un 50% del valor máximo de la diferencia entre las tensiones que generan dichas o The value of the difference in tensions is between 37.5% and 50% of the maximum value of the difference between the tensions generated by these

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voltaje asociado a las corrientes inducidas generadas en los elementos inductores se encuentra en el rango de 0 a 2 V en valor absoluto. Un equipo detector (4) de corrientes inducidas configurado para detectar las corrientes inducidas que se producen en las bobinas cuando una de dichas bobinas voltage associated to the induced currents generated in the inductor elements is in the range of 0 to 2 V in absolute value. An induced current detector device (4) configured to detect the induced currents that occur in the coils when one of said coils

(1) se sitúa en un tramo de la pieza tubular (6) antes de que entre en el horno y cuando la otra de las bobinas (2) se sitúa en un tramo de la pieza tubular (6) después de salir del horno (3), estando dichas bobinas (1,2) alimentadas por el elemento generador de corriente alterna (7) y configurado también dicho equipo detector (4) para calcular la diferencia entre las tensiones que generan dichas corrientes inducidas que se producen en las bobinas y transmitir dicho valor a unos medios de control (5); medios de control (5) configurados para fijar la potencia eléctrica del horno y/o velocidad de desplazamiento de la plataforma del horno a partir del valor obtenido de la diferencia de tensiones por el equipo detector (4) de tal manera que si dicho valor está: (1) is placed in a section of the tubular part (6) before it enters the oven and when the other of the coils (2) is located in a section of the tubular part (6) after exiting the oven ( 3), said coils (1,2) being fed by the alternating current generating element (7) and said detector equipment (4) also configured to calculate the difference between the voltages generated by said induced currents that occur in the coils and transmit said value to control means (5); control means (5) configured to set the electric power of the furnace and / or travel speed of the furnace platform from the value obtained from the difference in voltages by the detector equipment (4) such that if said value is :

o Por encima de 1,2 V, los medios de control fijan la velocidad de desplazamiento de la plataforma entre 38 m/min y 40 m/min y la potencia eléctrica del horno entre 300 KW y 400 KW: o Above 1.2 V, the control means set the platform travel speed between 38 m / min and 40 m / min and the electric power of the oven between 300 KW and 400 KW:

o Entre 1 V y 2V, los medios de control fijan la velocidad de desplazamiento de o Between 1 V and 2V, the control means set the travel speed of

2 la plataforma entre 38 m/min y 40 m/min y la potencia eléctrica del horno entre 400 KW y 500 KW; 2 the platform between 38 m / min and 40 m / min and the electric power of the oven between 400 KW and 500 KW;

o Entre 0,75 V y 1 V, los medios de control fijan la velocidad de desplazamiento de la plataforma entre 28 m/min y 40 m/min y la potencia eléctrica del horno entre 475 KW y 500 KW; o Between 0.75 V and 1 V, the control means set the platform travel speed between 28 m / min and 40 m / min and the electric power of the oven between 475 KW and 500 KW;

2 o Entre 0,3 V y 0,75 V, los medios de control fijan la velocidad de desplazamiento de la plataforma entre 16 m/min y 28 m/min y la potencia eléctrica del horno entre 325 KW y 500 KW; 2 o Between 0.3 V and 0.75 V, the control means set the travel speed of the platform between 16 m / min and 28 m / min and the electric power of the oven between 325 KW and 500 KW;

o Por debajo de 0,3 V, los medios de control apagan el horno y la plataforma para rechazar la pieza tubular. o Below 0.3 V, the control means turn off the oven and the platform to reject the tubular part.

Preferiblemente, las bobinas se incluyen en un encapsulamiento aislante con un diámetro interior entre 5 mm y 125 mm. Preferably, the coils are included in an insulating encapsulation with an inner diameter between 5 mm and 125 mm.

En una realización preferente, el sistema de recristalización de una pieza tubular (6) comprende un dispositivo amplificador, entre cada una de las bobinas (1, 2) y el equipo In a preferred embodiment, the recrystallization system of a tubular part (6) comprises an amplifying device, between each of the coils (1, 2) and the equipment

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Claims (1)

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ES201730565A 2017-03-31 2017-03-31 System and procedure to control the recrystallization of a metal tubular piece Active ES2663508B1 (en)

Priority Applications (1)

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ES201730565A ES2663508B1 (en) 2017-03-31 2017-03-31 System and procedure to control the recrystallization of a metal tubular piece

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ES2663508A1 true ES2663508A1 (en) 2018-04-13
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0953059B1 (en) * 1996-12-16 2001-07-18 Accra Teknik AB Method for stretching of a profile in an induction heat treatment process
US20040164071A1 (en) * 2002-04-08 2004-08-26 Jfe Steel Corporation Heat treatment apparatus, heat treatment method, medium on which heat treatment program is recorded, and steel product
US20100018270A1 (en) * 2004-10-14 2010-01-28 Toshiba Mitsubishi-Electric Industrial Systems Corporation Method for controlling materials quality in rolling, forging, or leveling process
US20130000375A1 (en) * 2010-01-06 2013-01-03 Sumitomo Metal Industries, Ltd. Method and apparatus for manufacturing a bent member
US20160010175A1 (en) * 2013-03-14 2016-01-14 Neturen Co., Ltd. Wire heating system and wire heating method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0953059B1 (en) * 1996-12-16 2001-07-18 Accra Teknik AB Method for stretching of a profile in an induction heat treatment process
US20040164071A1 (en) * 2002-04-08 2004-08-26 Jfe Steel Corporation Heat treatment apparatus, heat treatment method, medium on which heat treatment program is recorded, and steel product
US20100018270A1 (en) * 2004-10-14 2010-01-28 Toshiba Mitsubishi-Electric Industrial Systems Corporation Method for controlling materials quality in rolling, forging, or leveling process
US20130000375A1 (en) * 2010-01-06 2013-01-03 Sumitomo Metal Industries, Ltd. Method and apparatus for manufacturing a bent member
US20160010175A1 (en) * 2013-03-14 2016-01-14 Neturen Co., Ltd. Wire heating system and wire heating method

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