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1. 发明专利

JPH06174552A MEASURING APPARATUS FOR TEMPERATURE OF STEEL PLATE BETWEEN STANDS OF CONTINUOUS HOT PRESS ROLL 失效
公开(公告)号：JPH06174552A
公开(公告)日：1994-06-24
申请号：JP35128192
申请日：1992-12-07
申请人： NIPPON KOKAN KK , CHINO CORP
发明人： HAYASHI YOSHITAKA , KATO TOMOYUKI , KITAZAWA MOTOHIKO , CHINO HAJIME
IPC分类号： B21C51/00 , G01J5/00 , G01J5/02 , G01J5/08
摘要： PURPOSE:To measure the temperature of a steel plate between stands of a continuous hot press roll. CONSTITUTION:An optical fiber 14 is fitted to a lens system 13. The light radiated from a steel plate and condensed by the lens system 13 is transmitted to a temperature detector set outside a press roll in the good environment. The data of the temperature is changed to electric signals by the temperature detector. One end part of the lens system 13 and the optical fiber 14 is coated with a water-cool jacket 15 having a heat-shielding plate 16 so as to be protected from the radiation heat of the steel plate or the like.

2. 发明专利

JPH04200820A METHOD FOR DETECTING ROLL MARK OF STEEL PLATE 失效
公开(公告)号：JPH04200820A
公开(公告)日：1992-07-21
申请号：JP33037190
申请日：1990-11-30
申请人： NIPPON KOKAN KK , TAIHEI KOGYO KK
发明人： SEKINE HIROSHI , HAYASHI YOSHITAKA , NASU SHIGERU , ISHIGAKI JUNICHI
IPC分类号： G01B11/24 , B21C51/00
摘要： PURPOSE:To detect a roll mark on the line by picking up a steel plate with an infrared camera, identifying a low temperature part, finding an OR and an AND between pictures, and detecting the presence of the roll mark based on the radio of the picture numbers by which they are formed. CONSTITUTION:The infrared camera 20 picks up a picture corresponding to one revolution of a rolling roll for the steel plate 10. An arithmetic unit 23 stores a picture of an area corresponding to the N-th area of the rolling roll. This picture is defined picture A. Then, a picture of an area corresponding to the picture of the (N+1)-th area is stored. This picture is defined as picture B. Low temperature parts are searched about the picture A and B, the number of the picture elements at the low temperature parts are counted and the sum N of the number of the picture elements of both pictures is found. Then, the picture elements of the picture A is compared with the picture elements of the picture B at the corresponding coordinates and the number X of the picture elements when the picture elements on both pictures are located on the low temperature area is counted. When X/N>C (a prescribed reference value), the steel plate 10 is detected to be provided with a roll mark.

3. 发明专利

JPH0214124B2 失效
公开(公告)号：JPH0214124B2
公开(公告)日：1990-04-06
申请号：JP18549381
申请日：1981-11-20
申请人： NIPPON KOKAN KK
发明人： TANIMOTO SUNAO , SAITO MORIO , HAYASHI YOSHITAKA , YABUCHI TOSHIFUMI
IPC分类号： B21B37/48 , G01L5/04

4. 发明专利

JPS5886918A MATERIAL TENSION ESTIMATING METHOD OF CONTINUOUS ROLLING MILL 失效
公开(公告)号：JPS5886918A
公开(公告)日：1983-05-24
申请号：JP18549381
申请日：1981-11-20
申请人： NIPPON KOKAN KK
发明人： TANIMOTO SUNAO , SAITOU MORIO , HAYASHI YOSHITAKA , YABUUCHI TOSHIFUMI
IPC分类号： B21B37/48 , G01L5/04
摘要： PURPOSE:To estimate the tension of a rolling material with high accuracy, by eilminating a material tension estimating error due to rolling load, rolling torque, a measuring error of relational formulas between tensions of the rolling material between stands a model error, etc., in a rolling mill consisting of plural rolling stands. CONSTITUTION:In a continuous rolling mill having plural rolling stands, rolling torque G, the whole rolling load P, a roll radius R, stand entry plate thickness H, delivery plate thickness (h), a flat roll radius R', and a material biting angle (alpha) in each stand are measured or estimated, and in case of a state that the tip and the rear end of a material are a plate pasing state having scarcely tension, a torque arm coefficient of each stand is estimated by use of formulas (I), (II), from which tensile force between the stands is estimated by the formula (III), and tension of the material is estimated. At the point of time when the tip of the material has come out of the rollig mill, said torque arm coefficient and a model error (g) derived by the formula (IV) are fixed, the tensile force between the stands is estimated, and by its value, tension of the rolling material between the stands is estimated with high accuracy.

5. 发明专利

JPS57190721A WIDTH GAUGE FOR ROLLED PLATE 失效
公开(公告)号：JPS57190721A
公开(公告)日：1982-11-24
申请号：JP7564581
申请日：1981-05-21
申请人： NIPPON KOKAN KK
发明人： TANIMOTO SUNAO , SAITOU MORIO , HOSOE TOSHIAKI , HAYASHI YOSHITAKA
IPC分类号： B21B37/22 , B21B37/50 , B21B38/04 , B21C51/00 , G01B11/04
摘要： PURPOSE:To improve accuracy of plate width measurement in a hot strip finishing mill by grasping movement of the looper between stands and compensating the variation of height of the rolled plate and enabling visual measurement of plate width. CONSTITUTION:The movement of a looper 3 that lies between the front stand 1 and rear stand 2 and keeps the tension of a rolled plate 4 constant is detected by a looper angle detector. At the same time, visual angle of the direction of width of the rolled plate is detected by a photoelectric detector 6. The detection signals from above-mentioned detectors are inputted to a computer anf the width of the rolled plate is calculated accurately.

6. 发明专利

JP2755120B2 失效
公开(公告)号：JP2755120B2
公开(公告)日：1998-05-20
申请号：JP22591993
申请日：1993-09-10
申请人： NIPPON KOKAN KK
发明人： HAYASHI YOSHITAKA , SEKINE HIROSHI , KIMURA YUKIO , OKA MASARU
IPC分类号： B21B37/00 , B21B37/26

7. 发明专利

JPH06297017A CONTROLLER FOR MEANDER OF ROLLED STOCK IN CONTINUOUS MILL 失效
公开(公告)号：JPH06297017A
公开(公告)日：1994-10-25
申请号：JP8903693
申请日：1993-04-16
申请人： NIPPON KOKAN KK
发明人： SEKINE HIROSHI , HAYASHI YOSHITAKA
IPC分类号： B21B37/00 , B21B37/68
摘要： PURPOSE:To obtain a meander controller to adjust meander controlling response and meander controlling capacity in consideration of parameter fluctuation of a meander process under rolling. CONSTITUTION:This is a controller for meander of a rolled stock in a continuous mill provided with plural rolling stands containing rolling rolls 3, 3' and rolling-down devices 5, 7 for the rolling roll having a leveling means. It is furnished with a detecting device 21 for the meander of the rolled stock, an automatic identifying device 23 to identify on-line a process model of ever-changing meander detected by the detecting device 21 and an arithmetic unit 25 for leveling quantity to calculate the leveling quantity for controlling the meander in accordance with the process model identified by the identifying device.

8. 发明专利

JPH06154823A METHOD FOR DECIDING SHIFT AMOUNT OF WORK ROLL 失效
公开(公告)号：JPH06154823A
公开(公告)日：1994-06-03
申请号：JP31233692
申请日：1992-11-20
申请人： NIPPON KOKAN KK
发明人： KATO TOMOYUKI , HAYASHI YOSHITAKA , OKAZAKI SHINJI
IPC分类号： B21B1/22 , B21B37/00 , B21B37/42
摘要： PURPOSE:To obtain a method for preventing the uneven wear of a roll and to decide the shift amount by which stable rolling can be executed without remarkably changing an amount of shift. CONSTITUTION:The shift amount of the succeeding material is decided of the succeeding material is decided by the cyclic shift method, a tolerance for the optimum shift position calculating area is provided on a decided amount of shift, the roll profile of the succeeding material is estimated from the roll profile (wear profile) of the preceeding material and the optimum shift position of the succeeding material is enumerated in the tolerance so that an evaluation function about smoothness of the roll profile is minimized.

9. 发明专利

JPH05296728A 失效
公开(公告)号：JPH05296728A
公开(公告)日：1993-11-09
申请号：JP12108492
申请日：1992-04-16
申请人： NIPPON KOKAN KK , TAIHEI KOGYO KK
发明人： HOJO SHIGETO , HAYASHI YOSHITAKA , NASU SHIGERU , ISHIGAKI JUNICHI
IPC分类号： G01B11/04
摘要： PURPOSE:To accurately measure steel plate breadth without any need of an illuminant as an auxiliary facility by detecting infrared radiated from a steel plate and calculating the breadth thereof from the detected value. CONSTITUTION:Infrared cameras 1 and 2 detect infrared radiated from a steel plate 3 with the breadthwise direction thereof taken as one dimension, and finds both ends of the steel plate 3. The cameras 1 and 2 are used as one- dimensional position sensors with horizontal scanning in a breadthwise direction. The surface temperature T of the steel plate 3 is measured with a radiation thermometer 4, and the wavelength of infrared corresponding to the temperature T is calculated and processed, thereby selecting the cut-on filter of the cameras 1 and 2 within a range optimum for the transmittance of the wavelength. This filter selection is automatically undertaken by a control device. When the steel plate 3 passes under the cameras 1 and 2, one-dimensional data of the steel plate 3 in a breadthwise direction is detected with the cameras 1 and 2. The end positions of the steel plate 3 are geometrically calculated from values detected with the two cameras 1 and 2, thereby calculating plate breadth W.

10. 发明专利

JPH07185630A CONTROL METHOD FOR HOT ROLLING MACHINE 失效
公开(公告)号：JPH07185630A
公开(公告)日：1995-07-25
申请号：JP33285593
申请日：1993-12-27
申请人： NIPPON KOKAN KK
发明人： SEKINE HIROSHI , HAYASHI YOSHITAKA , KIMURA YUKIO , FUJITA FUMIO
IPC分类号： B21B37/00 , B21B37/18 , B21B37/26 , B21B37/58
摘要： PURPOSE:To obtain a control method for a hot rolling machine capable of changing draft setting only by target thickness and stably changing thickness by performing control by using different kinds of draft control parameters. CONSTITUTION:A controller is constituted of a thickness storage part 10, a change point tracking device 12, a thickness setting change device/gain compensator 14, a smoothing device 16, an abnormality detector 18, and an AGC device by BISRA system. The thickness storage device 10 stores the input/output side thickness target value of materials A, B found by draft schedule calculation, and calculates difference DELTAH, DELTAh. The change point tracking device 12 issues a setting switching timing when a flying thickness change point arrives at each stand. A draft setting correcting operation is started by such timing command. The thickness setting change device 14a starts the adding operation of thickness correction quantity by the input of the setting switching timing. In this way, it is possible to easily control a draft position when the thickness is changed with high accuracy by using the thickness target value calculation result of each stand.

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