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公开(公告)号：JP2904344B2
公开(公告)日：1999-06-14
申请号：JP12917598
申请日：1998-05-12
发明人： RORUFU NOE , ANDOREASU NOE
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公开(公告)号：JPH112511A
公开(公告)日：1999-01-06
申请号：JP7850098
申请日：1998-03-11
发明人： MUELLER ULRICH DR , PEUKER GUSTAV , SONNENSCHEIN DETLEV , WINTER DETLEF DR , DEGNER MICHAEL , THIEMANN GERD
IPC分类号： B21B37/42 , B21B37/44 , B21B37/54 , B21B37/76 , B21B38/00 , B21B38/02 , B21B38/04 , B21B45/02 , B21C51/00 , G01B11/30
摘要： PROBLEM TO BE SOLVED: To measure the flatness simply and effectively so as to improve the quality of a strip, and to enable fine control for a rolling parameter and/or a coil parameter by detecting a linear pattern formed on the measured surface and/or a coil surface in the molding process by a camera, and comparing the measurement result with the reference measurement. SOLUTION: A hot strip 1 is subjected to flatness detection in a carry-out area of a finishing roll 6 and analyzed, and as an internal flatness control loop 9, bending and inclination of the roll of the final stand of the finishing roll 6 are controlled. This control loop 9 is complemented by an external flatness control loop 10 for measuring the flatness of the strip in front of a coil winder 7 after the strip cooling line 8 to conform the internal control loop to a desired value. Further, by using the measurement value detected after the cooling line 8, a secondary control loop 11 controls the cooling line 8 through a cooling desired value conformance system, and the secondary control loop 12 conforms the tension of the coil winder 7 to the desired value.
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公开(公告)号：JPH10328723A
公开(公告)日：1998-12-15
申请号：JP14631297
申请日：1997-06-04
发明人： ONO TAKAO , KATAYAMA YASUNORI , KITANI SUSUMU , HIDA HAJIME , HATTORI SATORU , SAITO YUTAKA , INABA HIROMI , YASUDA KENICHI
摘要： PROBLEM TO BE SOLVED: To estimate the sheet profile of each stand of a tandem rolling mill without using a profile meter, and to enable the fine profile control of each stand. SOLUTION: The profile meters are installed on the inlet side of a first stand and the outlet side of the final stand of the rolling mill 1. The mechanical profile change of a work roll, caused by an actuator operation, is calculated by a mechanical change profile model calculating mechanism 6 as the function of the change of each operation quantity by a sensor 3. A thermal crown quantity by the thermal expansion of the work roll, is found from the measured values of plate thickness, rolling load and roll gap by the sensor 3 by a thermal crown calculating mechanism 7. From the fluctuations of these mechanical profile change and the thermal crown quantity, the work roll profile of each stand, that is, the sheet profile on the outlet side of the stand is estimated. Further, an influence coefficient of the sheet profile at the outlet side of each stand on the final stand, is learned by a learning mechanism 9, and it is used as a control parameter.
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公开(公告)号：JPH10225709A
公开(公告)日：1998-08-25
申请号：JP3350897
申请日：1997-02-18
申请人： KAWASAKI STEEL CO
摘要： PROBLEM TO BE SOLVED: To roll a metal plate into uniform thickness throughout the entire in the width direction by surely reducing edge drop to a material to be rolled having various thickness profiles. SOLUTION: In a tandem mill, a shift/cross rolling mill which is provided with a shift operating device 12 for shifting the work rolls whose end parts are tapered in the axial direction and a cross operating device 14 for crossing upper and lower work rolls on a 1st stand is installed and also constituted so that the amount of shift and cross angle for correcting the edge drop of the material to be rolled are determined based on the detected value of the profile of a base plate and target values and also, a controller 20 with which the work rolls are shifted at the amount of shift and the upper and lower work rolls are crossed at the cross angle by respectively outputting these detected amounts of shift and cross angle to the shift operating device 12 and cross operating device 14 is provided.
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公开(公告)号：JPH10216815A
公开(公告)日：1998-08-18
申请号：JP2466997
申请日：1997-02-07
申请人： KAWASAKI STEEL CO
发明人： WATANABE YUICHIRO , HIRUTA TOSHIKI , IMAE TOSHIO , SUZUKI MAKOTO
摘要： PROBLEM TO BE SOLVED: To improve the accuracy of a sheet-crown predicting model to attain the target of the sheet crown and to make a sheet shape better even in case there is a rolled stock having different width in a rolling cycle. SOLUTION: In a predicting method of the sheet crown of a metal plate which is rolled with a continuous rolling mill in which plural rolling stands are arranged in series, about two or more continued rolling stands F5-F7, the sheet crown is detected with sheet crown meters 12 at two places of the inlet side of the most upstream stand F5 and outlet side of the most downstream stand F7, also the profiles of the work rolls of each rolling stand are detected with roll profile meters 10 and, in determining the learning value of the model for predicting the sheet crown on the outlet side of each rolling stand, the ratio of the learning value is defined as the ratio of the difference between the detected value and the predicted value of the profiles of the work rolls of each rolling stand.
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公开(公告)号：JP2733008B2
公开(公告)日：1998-03-30
申请号：JP22469893
申请日：1993-09-09
申请人： KOBE SEIKOSHO KK
发明人： SHIMOMURA MASAKAZU , UESUGI KENICHI , NOSE KAZUO
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公开(公告)号：JPH1019553A
公开(公告)日：1998-01-23
申请号：JP17811196
申请日：1996-07-08
申请人： KOBE STEEL LTD
发明人： HOSOKAWA HARUYUKI
摘要： PROBLEM TO BE SOLVED: To raise the shape detection accuracy by detecting the angle of a sensor at which the detected tension is largest, detecting the effects of grip tension variation from the tension variation and surely removing it. SOLUTION: Each disk 3 of a roller 5 has a sensor 2 arranged with specifically shifted angle along the rotation direction and a few points in the specific angle are not arranged with the sensor 2. The output values from the angles with no arrangement of the sensor 2 are plotted and detected. Using these output values for linear interpolation, drift is removed. Then, phase, amplitude and offset of fluctuation are calculated from the output value to correct the detected value of the sensors 2 and to remove them. After correcting the drift and fluctuation, the total of the tensions at every phase angle is calculated, the angle of maximum detected tension is detected and compared with the previous value. If it exceeds a specified threshold, it is judged to be grip tension variation. By removing the tension variation and correcting the sensor detection value, shape detection with high accuracy can be done.
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公开(公告)号：JPH09236418A
公开(公告)日：1997-09-09
申请号：JP4232596
申请日：1996-02-29
申请人： KAWASAKI STEEL CO
发明人： SASAKI HIROAKI , ITO HIROYUKI
摘要： PROBLEM TO BE SOLVED: To discover a method for detecting a defective hole of a metallic strip in consideration with relative positional errors caused by tracking operation, by referencing data representing positions and numbers of detected holes, and relationship between regions of detected holes and specific regions of removed holes. SOLUTION: A running metallic strip is observed at a hole detection section and data of detection holes which are sequentially detected is fetched into a data processing section, then positions thereof in the width and longitudinal directions are determined. The data of the position in the longitudinal direction is compared with a data of a welding hole in relation to the longitudinal direction of the metallic strip obtained from a host computer beforehand, then the detected hole is discriminated to determine if it is defective. At that time, an existing position of the detected hole in the width direction, the number of detected holes existing in a welding hole region including a welding hole position which is regarded as a tracking error and relationship between the existing region of the plural detected holes in the welding hole region, and a predetermined removal region are used as references for the judgment. Thus, a method for detecting the defective hole of the metallic strip is discovered.
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