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1. 发明专利

JPH01210110A DEVICE FOR CONTROLLING FLATNESS OF STRIP IN COLD ROLLING 失效
公开(公告)号：JPH01210110A
公开(公告)日：1989-08-23
申请号：JP3240388
申请日：1988-02-15
申请人： TOSHIBA CORP , KAWASAKI STEEL CO
发明人： CHIYOUKA MINORU , SEKIGUCHI KUNIO , SEKI YOSHIRO , HIROHATA KAZUHIRO , TOUYAMA SUSUMU , KURODA SHIGERU
IPC分类号： B21B37/32 , B21B37/00
摘要： PURPOSE:To rapidly remove local defects in flatness and to obtain a product having good flatness by controlling injection from coolant nozzle headers based on flatness detection results in plural roll coolant control regions segmented in the width direction of a strip. CONSTITUTION:A 1st coolant injection deciding means 31 and a 2nd coolant injection deciding means 32 are installed in the output side of a flatness deviation computing element 24. The element 24 calculates a deviation value of an actual detected flatness value found by a shape detector 22 from a previously decided target value. The deviation value is converted into a flatness deviation value corresponding to zone segmentation of coolant nozzle headers 20. The 1st means 31 processes the flatness deviation value to output a 1st coolant flag. Also, the 2nd means 32 processes the deviation value to output a 2nd coolant flag. Both the flags are inputted to a 3rd coolant injection deciding means 33 to output a coolant open-and-close signal for each coolant injection solenoid valve 21 decided as a logical sum.

2. 发明专利

JPH01210109A CONTROLLER FOR FLATNESS OF ROLLED STOCK 失效
公开(公告)号：JPH01210109A
公开(公告)日：1989-08-23
申请号：JP3240488
申请日：1988-02-15
申请人： TOSHIBA CORP , KAWASAKI STEEL CO
发明人： SEKIGUCHI KUNIO , SEKI YOSHIRO , HIROHATA KAZUHIRO , TOUYAMA SUSUMU
IPC分类号： B21B37/28 , B21B37/00 , B21B37/38 , B21B37/42
摘要： PURPOSE:To improve the arithmetic accuracy for operating amounts at respective operating terminals and to obtain a product having good flatness by properly correcting an influence coefficient at respective operating terminals. CONSTITUTION:A flatness controller 17, as example, calculates an operating amount at respective operating terminals minimizing an evaluation function J shown in the equation; where, m: max. value of the width directional position, betaiREF: standard value of elongation percentage difference. Respective operating amounts are outputted to a work roll bender controller 8, intermediate roll bender controller 9, intermediate roll shift controller 10, and draft leveling controller, respectively. Therefore, optimum operating amounts are set because actual values of an influence coefficient reflect on such calculation of respective operating amounts. Hence, a product having good flatness is obtained.

3. 发明专利

JPH01317609A FLATNESS CONTROLLER 失效
公开(公告)号：JPH01317609A
公开(公告)日：1989-12-22
申请号：JP14941388
申请日：1988-06-17
申请人： TOSHIBA CORP , KAWASAKI STEEL CO
发明人： KASAHARA IKUO , SEKIGUCHI KUNIO , SEKI YOSHIRO , HIROHATA KAZUHIRO , TOUYAMA SUSUMU , HINO ETSUJI
IPC分类号： B21B37/38 , B21B37/00 , B21B37/42
摘要： PURPOSE:To improve the flatness of a sheet by comparing the influence coefft. patterns to the respective sheet flatnesses of work roll benders and intermediate roll benders with the influence coefft. patterns of intermediate roll shafts and operating the intermediate roll shifts. CONSTITUTION:A manipulated variable detector 13 compares the manipulated variables at respective manipulation ends with the limit values of the manipulated variables for the respective manipulation ends to asertain whether said variable exceed the limits or not. Then, the detector outputs the limot over signal to a flatness control circuit 16. An influence coefft. computing device 14 computes the model calculated values of the influence coefft. from the rolling data while the actual values of the manipulated variables are under measurement. The calculated values are outputted to an influence coefft. pattern comparing and computing device 15 and a flatness controller 16. The computing device 15 delivers the control decision signal to any of the work rolls 2A, 2B and the intermediate rolls 3A, 3B to the flatness control circuit 16 in accordance with the model calculated values of the influence coefft. calculated by the computing device 14. The control circuit 16 determines the manipulated variables of the intermediate roll shifts and outputs the same toward an intermediate roll shift controller 10.

4. 发明专利

JPH09295018A DEVICE FOR CORRECTING TRACKING OF ROLLING MILL AND METHOD THEREFOR 失效
公开(公告)号：JPH09295018A
公开(公告)日：1997-11-18
申请号：JP13414396
申请日：1996-05-02
申请人： HITACHI LTD , KAWASAKI STEEL CO , HITACHI INF & CONTROL SYST
发明人： WATABIKI TAKASHIGE , KATAYAMA YASUNORI , YOSHIOKA KENICHI , SAITO YUTAKA , HATTORI SATORU , OKADA TAKASHI , HIROHATA KAZUHIRO , KURODA SHIGERU , TSUCHIDA HISAFUMI
IPC分类号： B21B37/00 , G05B13/02
摘要： PROBLEM TO BE SOLVED: To accurately obtain the shifting quantity of a tracking and to immediately enable the correction in real time by obtaining the phase deviating time between the tracking with a tracking mechanism and the actual rolling material and correcting the deviation of the tracking from the phase deviating time. SOLUTION: The actual value detected with a sencing mechanism 2 is caught as the variations of a first and a second patterns and these variated patterns are transformed to signal lines to execute a pattern matching treatment with a wave form variating point detecting mechanism 4-2 and a comparison detecting mechanism 6. By this way, the deviation of the tracking is surely caught in the real time and the deviating quantity of the tracking can accurately by obtd. and can immediately execute the correction to the deviation through the tracking correcting mechanism 7. In this result, the deviation in data used to the control of a rolling mill 1 is eliminated and the suitable and high accurate control can be executed.

5. 发明专利

JPH0288114A BROKEN EDGE DETECTING AND REMOVING METHOD FOR STEEL BELT 失效
公开(公告)号：JPH0288114A
公开(公告)日：1990-03-28
申请号：JP23719788
申请日：1988-09-21
申请人： KAWASAKI STEEL CO
发明人： TAKEDA SUNAO , HIROHATA KAZUHIRO
IPC分类号： B23D19/06 , B23D36/00
摘要： PURPOSE:To automatically perform optimum trimming without decreasing a line speed in detection, removal, etc., of a broken edge by removing from steel belt both side end parts with a side trimmer adjusted combining the side trimmer, broken edge detector and a broken edge removing means. CONSTITUTION:A side trimmer 5 removes a broken edge 4 in an edge part 2 in the width direction of a steel belt 1 by the initially preset value of a trimming margin 3, and detecting the broken edge remaining in the steel belt 1 by a speed/broken edge detector 6, a depth of the broken edge is classified by a rank, introducing a signal 10 to a computer 8. The computer 8, in accordance with the broken edge rank 10, judges notching for whether it is necessary or not and the depth of cut of the notching, when it is necessary, tracking is performed of the operation timing from a plate speed, obtained by a speed detector 17, and from a distance X, and when the broken edge part reaches a notcher 7, a start signal 12 is given, and the broken edge is removed by the depth of cut set in a cut depth signal 11. While by the depth of cut and a frequency accumulated in the computer 8, the trimmer 5 is automatically changed in trimming quantity through a signal 16, performing trimming suited for a broken edge condition.

6. 发明专利

JPS6012213A COLD ROLLING METHOD OF STEEL SHEET 失效
公开(公告)号：JPS6012213A
公开(公告)日：1985-01-22
申请号：JP12224183
申请日：1983-07-04
申请人： KAWASAKI STEEL CO
发明人： NAKANISHI TOSHINAGA , SUGANUMA NAMIO , KOMATSU TOMIO , HIROHATA KAZUHIRO
IPC分类号： B21B37/28 , B21B1/28 , B21B37/00 , B21B37/42
摘要： PURPOSE:To improve the quality and yield of a product by comparing a measuring value of the amount of edge drop with its set value and controlling the shifting of a trapezoidal work roll in the sheet-width direction and the operating pressure of a roll bender. CONSTITUTION:At least a work roll 1 at the 1st stand is formed into a trapezoidal work roll by providing a chamfer to its roll end, and is shifted in the sheet width direction by a shifting device. The measured value of the amount of edge drop detected by a thickness gauge 4 is compared with a set value of the target amount of edge drop by a control device 6 used for controlling the amount of edge drop, then the shifting amount of roll 1 in the sheet width direction and the operating pressure of a roll bender, at the 1st stand, are controlled basing on the compared results so that the amount of edge drop of a steel sheet 5 coincides with the target value.

7. 发明专利

JPS57137828A STRESS DETECTION 失效
公开(公告)号：JPS57137828A
公开(公告)日：1982-08-25
申请号：JP2336281
申请日：1981-02-19
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： HIRASAKI SHIYUUICHI , HIROHATA KAZUHIRO , MIZUKAMI SUSUMU , ITOU SUSUMU , FUJIMOTO MINORU
IPC分类号： G01L1/00 , G01L1/12 , G01L5/04
摘要： PURPOSE:To measure stress distributions in the width direction of a belt-like magnetic material instantaneously by dividing magnetostrictive sensors to two groups, and moving the respective groups in the width direction in conformity with the respective end part positions in the direction of the belt-like magnetic material. CONSTITUTION:The 1st magnetostrictive sensor group 42 and the 2nd magnetostrictive sensor group 44 consisting of plural pieces of L-shaped magnetostrictive sensors 40 are so arranged as to be moved in the width direction by means of a positioning cylinder. The sensors 42, 44 are so disposed that the respective sensors 40 are located specularly symmetrically with respect to the centerline C of a rolled steel plate 18, whereby the stress detecting positions of the groups 42, 44 are made symmetrical on the right and left. When tension acts in the rolling direction, differences are generated in the voltage detected by the coils 66, 68 in the respective directions, and from these voltage differnces, the stress distributions of the plate 18 are determined.

8. 发明专利

JPS57108603A DETECTING METHOD FOR CONFIGURATION 失效
公开(公告)号：JPS57108603A
公开(公告)日：1982-07-06
申请号：JP18475680
申请日：1980-12-25
申请人： KAWASAKI STEEL CO , HITACHI LTD
发明人： HIRASAKI SHIYUUICHI , HIROHATA KAZUHIRO , SAMEJIMA ICHIROU , ITOU SUSUMU , WAKAMATSU YUTAKA
IPC分类号： G01L5/04 , B21C51/00 , G01B7/00 , G01B7/04 , G01B7/28 , G01B21/06 , G01B21/20
摘要： PURPOSE:To reliably determine the degree of configuration defect, by a method wherein configuration is evaluated by employing a detected stress signal as it is or an absolute stress obtained by correcting the detected stress signal by an overall tension according to whether the variation of a gap signal is below or above a given value. CONSTITUTION:An excitation coil 14 and detection coils 20, 22 are disposed along the moving direction of a belt-shaped magnetic substance 18 moving at high speed in order to measure the stress applied to the belt-shaped magnetic substance 18 by utilizing magnetostriction effect. In addition, the stress distribution in the width direction of the belt-shaped magnetic substance 18 is made known by detecting the gap between the detector and the belt-shaped magnetic substance 18, and the configuration of the belt- shaped magnetic substance 18 is evaluated from the stress distribution. When the variation of the gap signal is below a given value, i.e., in a state where configuration is latent, the configuration is latent, the configuration is evaluated by employing the detected stress signal as it is. On the other hand, when the vairation of the gap signal is above the given value, i.e., in a state where the configuration is actualized, the configuration is evaluated by employing an absolute stress obtained by correcting the detected stress signal by an overall tension.

9. 发明专利

JP2000219890A COLD ROLLING OIL COMPOSITION 失效
公开(公告)号：JP2000219890A
公开(公告)日：2000-08-08
申请号：JP2492299
申请日：1999-02-02
申请人： KYODO YUSHI , KAWASAKI STEEL CO
发明人： OIKAWA ISAO , NAMIKI MINORU , MORIUCHI TSUTOMU , MATSUOKA TORU , SHIN OSAMU , HIROHATA KAZUHIRO
IPC分类号： C10M169/04 , C10N30/06 , C10N30/12 , C10N40/24
摘要： PROBLEM TO BE SOLVED: To provide a cold rolling oil composition excellent in lubricity, capable of efficiently preventing welding between metals in a metal-to metal contact part occurring between a roll and a material, hardly having metallic corrosion behavior, capable of stably rolling various kinds of materials to be rolled out in a lower concentration, easy to be managed and capable of decreasing the quantity consumed of itself. SOLUTION: This cold rolling oil composition comprising inert sulfide of fat and oil or polysulfide includes (A) a base oil comprising at least one kind selected form the group consisting of natural fat and oil and a synthetic ester, and having 10-100 mm2/s dynamic viscosity at 40 deg.C and >=150 mgKOH/g saponification degree, (B) a phospholipid, (C) a phosphite and (D) >=5 wt.% sulfur content.

10. 发明专利

JPS63242855A TRACKING METHOD FOR STRIP CONTINUOUSLY PROCESSING LINE 失效
公开(公告)号：JPS63242855A
公开(公告)日：1988-10-07
申请号：JP7717787
申请日：1987-03-30
申请人： KAWASAKI STEEL CO
发明人： HIROHATA KAZUHIRO
IPC分类号： B65H23/18 , B21C47/34 , B65H26/00 , C21D9/56 , C23G3/02 , C25D7/06
摘要： PURPOSE:To restore the tracking information, make the structure simple, process many tracking points simultaneously if any, and perform the correct tracking by adding a function to generate simulated signals to the functions used for the conventional tracking. CONSTITUTION:An event signal generator 45 generating the same tracking start signal as before during the normal tracking and generating the imaginary event signal for the processing of the strip imaginarily loaded in a rewinder 3, a coil information storage unit 60, a simulated signal generator 70, and a switching unit 80 are provided. The simulated tracking similar to the normal tracking is performed by generating simulated signals, the tracking information can be restored, the logic itself can use the conventional one, and the device structure can be simplified. In addition, even if many tracking points exist, they can be processed simultaneously, and the correct tracking can be performed.

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