• 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:
    1. METHOD OF CONTROL AND REGULATING THE WORKING PARAMETERS OF THE MACHINE FOR CONTINUOUS CASTING OF THE TAPE BETWEEN CRYSTALL ROLLS, in which at the time of the occurrence of sticking of the tape to the rolls-crystallizers, they are determined by the number of wringing-in-the-wire, and, by the way, in the process, as well as in the process, as well as-such; by excluding the sticking of the tape to the rolls-crystallizers, the torque is measured on one of the rolls and, in the case of torque oscillations with a frequency above 1 Hz, reduces the casting speed and / or increase the flow rate of the lubricant so that the oscillation frequency of the torque becomes less than 1 Hz and remains at this level for at least 1 min, then the casting speed is increased to within the limits providing the oscillation of the torque with a frequency of less than 1 Hz. 2. The method according to 1, is also distinguished by the fact that the casting speed is reduced in steps, with the duration of each stage being less than 5 minutes, and the speed reduction at each stage is less than .15% of the speed at the previous stage. 3. The method according to claim 1, characterized by the fact that the speed of the Vtsts casting is increased stepwise, the duration of each step is less than 5 minutes, and the increase in speed at each step is 10% of the speed at the previous step. 4. The method according to Clause 1, of which is ius and with the fact that. average lubricant consumption increases by 5-15% of the original.
    公开号:SU1138008A3
    申请号:SU823375306
    申请日:1982-01-18
    公开日:1985-01-30
    发明作者:Берковиси Серж
    申请人:Скаль Сосьете Кондисьоннеман Ан Алюминьюм (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to metallurgy, in particular, to the control of continuous casting machines, more specifically to machines for casting a belt between rolls-crystallizers. The closest in technical essence and the achieved result to the invention is a method of detecting metal sticking on a rolling tool, in which the time of sticking is determined by the occurrence of repetitive torque oscillations (rolling force) l. However, the use of a known method on the machine for continuous casting of the tape does not eliminate the sticking of the tape to the crystal rolls and increase its productivity. The aim of the invention is to increase the productivity of the machine for continuous casting of the tape by eliminating the sticking of the tape to the roll of molds. The goal is achieved by the fact that, according to the method of controlling and adjusting the operating parameters of the machine for continuous casting of the tape between the crystallizing rolls, in which the moment of occurrence of sticking of the tape to the crystallizing rolls is determined by the occurrence of repetitive oscillations of torque from rolls and in case of oscillations of the torque with frequency over 1, the casting speed is reduced and / or the lubricant consumption is increased so that the oscillation frequency of the torque less than 1 Hz and stayed at this level for at least 1 min., then the casting speed was increased to the extent that the torque fluctuated with a frequency of less than 1 Hz. The casting speed is reduced to a step, and the duration of each step is less than 5 min. and the speed reduction at each step is less than 15% of the speed at the previous stage. The casting speed is increased in steps, with a step length of less than 5 minutes, and an increase in speed at each step is 10% of the speed at the previous step. Medium} | iy consumption of lubricants increase by 5-15% of the original. Sticking - between the rollers and the metal to be poured is associated simultaneously with the casting speed and the oil consumption sprayed onto the crystallizer rolls. When some speeds are exceeded, the tendency to sticking becomes more critical. To eliminate this, oil consumption can naturally increase, but too much lubrication of the roll crystallizers can disrupt the heat exchange between the cast metal and the surface of the mold rolls and lead to metal leakage into the mold connectors. Reducing the speed of the machine leads to a decrease in its productivity and the need to find the optimal oil consumption and high-speed casting modes, which allow the machine to work at maximum productivity, preventing sticking between the roll crystallizers and the metal to be cast. The casting mode depends on many variables, such as uniformity, temperature and level of the liquid metal, temperature and surface condition of the rolls-crystallizers, factors for which continuous control and regulation are difficult to implement and for some of them impossible. Therefore, in practice, continuous tape casting machines are most often used at speeds below their capabilities. According to the proposed method, in which the torque developed on one or another roll-mold is used as a controlled parameter, the frequency of changes in torque with a reference one is constantly compared. When this frequency is higher than the reference, the casting speed will decrease and / or increase the oil consumption until the frequency of the torque changes is lower than the reference frequency and does not sustain in this state for a predetermined time while the frequency of changes remains below the reference frequency. 31. It has been established that before sticking, which is medium for a tape condition, micro-sticking occurs, limited to a very small surface, then MrHOBeHHd disappears, followed by a new sticking, and so on until total sticking occurs, usually after one or several turns of the crystallizer roll. It is necessary to catch the appearance of micro-sticking in order to prevent the appearance of general sticking. It has been established that during normal operation the value of the moment measured on one of the roll-molds changes over a period of several tens of seconds, whereas in the case of micro-sticking this period decreases less than 1 s. Therefore, in order to capture micro-sticking, it is sufficient to detect a decrease in the fluctuation period, comparing it with a reference period of the order of a second, or, since the period is the reciprocal of the frequency, take the latter as a measurement element and compare it with a frequency of about 1 Hz . Having thus received a warning about the imminent emergence of micro-sticking, the casting speed is reduced and / or the oil consumption is increased. Changing c: the speed of the casting and the oil flow is not done immediately after the detection of the signal, indicating that the frequency of the moment change exceeds the reference frequency, and after about 5 seconds in order to exclude random factors that are not related to sticking. When changing the mode of operation of the maschine, sticking either remains (in 84 this case, the speed is reduced again and / or the oil consumption is increased again), or disappears, and then after a certain predetermined period of time, in the order of one to a few minutes, the speed can be increased as long as the frequency of changes remains below the reference frequency. The reduction or increase in the speed of the machine can be carried out continuously or in steps. The speed can be reduced in steps during periods of time below 5 minutes at least 15% of the speed in the preceding period of time. Consumption increased by 5-15% of the amount that he had at the time of the occurrence of micro-sticking. The drawing shows a device that implements the described method. It contains a feeding nozzle 1, roll crystallizers 2, pins 3 and 4, pillows 5 and 6, bed 7, lubricant distributors 8, valves 9, belt 10, roll 11, electric motor 12, torque meter 13, computer 14, control unit 15 electric drive. The device works as follows. The magnitude of the torque on one of the rolls-molds is measured by a torque meter 13. This value is transmitted to the computer 14, which acts on the electric drive control unit 15 of the mold-rolls and controls the oil supply valves 9 to the lubricant distributors B. The method according to the invention makes it possible to avoid sticking of the tape to the wa: cam molds and to increase the productivity of the machine.
    权利要求:
    Claims (4)
    [1]
    1 Hz reduces the casting speed and / or increases the flow rate of the lubricant so that the frequency of the oscillation of the torque becomes less than 1 Hz and remains at this level for at least 1 min, then the speed of the casting is increased in the range that allows the fluctuation of the torque with frequency less than 1 Hz.
    1. METHOD FOR MONITORING AND REGULATING THE OPERATING PARAMETERS OF THE MACHINE FOR CONTINUOUS TAPE TAPE BETWEEN THE CRYSTAL ROLLERS, in which, at the moment of adhesion of the tape to the crystallizing rollers, it is determined by the appearance of repeated fluctuations in the torque, which differs in that when tapes to mold rolls, the torque is measured on one of the rolls and in the case of fluctuations in the torque with a frequency above
    [2]
    2. The method according to π. 1, characterized in that the casting speed is reduced stepwise, with the duration of each step being less than 5 minutes, and the reduction in speed at each step is less than .15% of the speed at the previous step.
    [3]
    3. The way pop, 1, characterized in that the casting speed is increased stepwise, and the duration of each stage is less than 5 minutes, and the increase in speed at each stage is 10% of the speed at the previous stage.
    [4]
    4. The way to pop. 1, with the fact that. the average consumption of lubricant is increased by 5-15% of the original.
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    同族专利:
    公开号 | 公开日
    AU546276B2|1985-08-22|
    NO157728C|1988-05-11|
    EP0056777B1|1984-12-05|
    KR830008770A|1983-12-14|
    BG45551A3|1989-06-15|
    NO157728B|1988-02-01|
    GB2091455B|1984-05-10|
    MX157804A|1988-12-15|
    JPS57165165A|1982-10-12|
    FR2498099A2|1982-07-23|
    US4501315A|1985-02-26|
    AU7958582A|1982-07-29|
    ES508822A0|1983-04-01|
    AT10591T|1984-12-15|
    JPS6238071B2|1987-08-15|
    MY8500859A|1985-12-31|
    DD201982A5|1983-08-24|
    HU183802B|1984-06-28|
    NO820138L|1982-07-20|
    BR8200252A|1982-11-23|
    GB2091455A|1982-07-28|
    ES8305233A2|1983-04-01|
    EP0056777A2|1982-07-28|
    FR2498099B2|1983-02-18|
    EG15213A|1991-06-30|
    KR880002370B1|1988-11-03|
    GR81337B|1984-12-11|
    EP0056777A3|1982-08-18|
    YU10282A|1986-04-30|
    IN157291B|1986-02-22|
    CA1185069A|1985-04-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2824346A|1955-01-28|1958-02-25|Ohio Crankshaft Co|Method of controlling lubrication of continuous casting|
    FR1329801A|1961-05-26|1963-06-14|Davy & United Eng Co Ltd|Rolling Mill Control Method and System|
    US3478808A|1964-10-08|1969-11-18|Bunker Ramo|Method of continuously casting steel|
    DE2743579C2|1976-10-05|1988-08-11|Centre Rech Metallurgique|
    BE869726A|1978-08-11|1978-12-01|Centre Rech Metallurgique|METHOD OF REGULATING THE ADDITION OF COVERING POWDER IN CONTINUOUS CASTING OF METALS|
    FR2490516B1|1980-09-01|1982-09-10|Scal Gp Condit Aluminium|US4727927A|1987-01-20|1988-03-01|Hunter Engineering Company, Inc.|Casting machine control|
    FR2621839B1|1987-10-14|1992-02-21|Cegedur|METHOD FOR CONTROLLING AND ADJUSTING THE LUBRICATION OF THE WORKING FACE OF ROTARY CYLINDERS OF A CONTINUOUS BELT CASTING MACHINE|
    AT131759T|1989-07-14|1996-01-15|Hunter Eng Co|DEFLECTION CONTROL IN A DEVICE FOR CASTING BETWEEN CASTING ROLLERS|
    GB9017042D0|1990-08-03|1990-09-19|Davy Mckee Poole|Twin roll casting|
    ES2090346T3|1990-08-03|1996-10-16|Davy Mckee Poole|METAL CASTING PROCEDURE AND DEVICE WITH DOUBLE CYLINDER.|
    FR2673865B1|1991-03-12|1995-05-24|Rhenalu Pechiney|
    US5638893A|1993-10-07|1997-06-17|Fata Hunter, Inc.|Parting agent spray system|
    JPH0852519A|1994-08-11|1996-02-27|Nippon Atsuen Kogyo Kk|Production of aluminum punched sheet|
    BR112019002668A2|2016-08-10|2019-05-28|Nucor Corp|thin strip casting method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8101185A|FR2498099B2|1981-01-19|1981-01-19|
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