• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    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)
    公开号:ES2663508A1
    申请号:ES201730565
    申请日:2017-03-31
    公开日:2018-04-13
    发明作者:Manel ANTEQUERA MEDINA；Lluís Maria RIERA FONTANA；Raül OLMEDO GORDI；Núria；FERRER CRUSELLAS；Xavier CLOSA ROIG
    申请人:La Farga Tub SL；
    IPC主号:
    专利说明:

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    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:
    -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
    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
    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 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 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 maximum speed of displacement of the platform and to a high power, offering a great productivity as well as an energetic saving.
    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 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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    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) 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 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 Between 1 V and 2V, the control means set the travel speed of
    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 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 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 Below 0.3 V, the control means turn off the oven and the platform to reject the tubular part.
    Preferably, the coils are included in an insulating encapsulation with an inner diameter between 5 mm and 125 mm.
    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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    权利要求:
    Claims (1)
    [1]
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    同族专利:
    公开号 | 公开日
    ES2663508B1|2019-02-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0953059B1|1996-12-16|2001-07-18|Accra Teknik AB|Method for stretching of a profile in an induction heat treatment process|
    US20040164071A1|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|2004-10-14|2010-01-28|Toshiba Mitsubishi-Electric Industrial Systems Corporation|Method for controlling materials quality in rolling, forging, or leveling process|
    US20130000375A1|2010-01-06|2013-01-03|Sumitomo Metal Industries, Ltd.|Method and apparatus for manufacturing a bent member|
    US20160010175A1|2013-03-14|2016-01-14|Neturen Co., Ltd.|Wire heating system and wire heating method|
    法律状态:
    2019-01-23| PC2A| Transfer of patent|Owner name: LA FARGA YOURCOPPERSOLUTIONS, S.A. Effective date: 20190117 |
    2019-02-25| FG2A| Definitive protection|Ref document number: 2663508 Country of ref document: ES Kind code of ref document: B1 Effective date: 20190225 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201730565A|ES2663508B1|2017-03-31|2017-03-31|System and procedure to control the recrystallization of a metal tubular piece|ES201730565A| ES2663508B1|2017-03-31|2017-03-31|System and procedure to control the recrystallization of a metal tubular piece|
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