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1. 发明专利

JPH05172560A MEASURING METHOD OF DISTORTION SHAPE OF PLATE MATERIAL 失效
公开(公告)号：JPH05172560A
公开(公告)日：1993-07-09
申请号：JP35617391
申请日：1991-12-24
申请人： KAWASAKI STEEL CO , SERUTETSUKU SYST KK
发明人： KATAYAMA JIRO , OGASAWARA AKINOBU
IPC分类号： B21C51/00 , G01B11/24 , G01B11/245 , G01B21/20
摘要： PURPOSE:To enable highly accurate measurement and fast computation of a distortion shape by removing errors due to playing of a plate material and errors attributed to a long-term error of a displacement meter in the measurement of the distortion shape. CONSTITUTION:Displacements y1i and y2i are detected with displacement meters 1 and 2. An arithmetic device 12 determines a displacement difference dyi from the displacements y1i and y2i detected to obtain an integration waveform y3 of an integration computation (first) over the overall length in the longitudinal direction of a steel plate 3 from the displacement difference dyi. The first integration waveform y3 is converted to a second integration waveform y3' with a mean thereof zero. A sum of products function S is determined between a linear function which becomes zero at the center of a integration computation range and represents +1 and -1 at both ends thereof and a second integration waveform y3' converted. An inclination function G which is determined by the sum of products S is subtracted from the first integration waveform y3 to obtain a distortion shaped of the steel plate from a subtracted value.

2. 发明专利

JP2001317920A METHOD AND APPARATUS FOR MEASURING LENGTH OF CONVEYING MATERIAL 失效
公开(公告)号：JP2001317920A
公开(公告)日：2001-11-16
申请号：JP2000136899
申请日：2000-05-10
申请人： KAWASAKI STEEL CO
发明人： TAKEHISA OSAMU , KATAYAMA JIRO
IPC分类号： G01B11/04 , B21C51/00 , C21D1/00
摘要： PROBLEM TO BE SOLVED: To enable measurement of length with higher accuracy, regardless of difference in response speed between a photoelectric sensor and a CCD camera, even when the scanning cycle of the CCD camera is delayed. SOLUTION: A CCD camera 22 is made to scan a plurality number of times, before and after the detection timing of a photoelectric sensor 20, and the conveying speed of a conveying material 12 is computed from the image obtained and the period of the scanning. The time delay, until the detection of the position of the other end thereof with a CCD camera after the generation of a photoelectric sensor detection signal, is corrected using the resultant conveying speed.

3. 发明专利

JP2001255136A ON-LINE MEASURING ACCURACY INSPECTING METHOD FOR WIDTH AND LENGTH MEASURING INSTRUMENTS 失效
公开(公告)号：JP2001255136A
公开(公告)日：2001-09-21
申请号：JP2000068898
申请日：2000-03-13
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA JIRO
IPC分类号： G01B11/02 , B21B39/20 , B21C51/00 , G01B11/04 , G01B21/02 , G01B21/06
摘要： PROBLEM TO BE SOLVED: To enable measurement accuracy reliability and on-line self-diagnostics of a width and length measuring instrument that measure the width and the length dimensional shape of a hot steel sheet with a thick plate, for there is no measurement method with high performance available. SOLUTION: This method compares the width dimensions, immediately before a 90 deg. turn with the length dimension, to that immediately after the 90 deg. turn, and the length dimension, immediately before the 90 deg. turn with a width the dimension immediately after the 90 deg. turn.

4. 发明专利

JP2536970B2 失效
公开(公告)号：JP2536970B2
公开(公告)日：1996-09-25
申请号：JP5779391
申请日：1991-02-28
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA JIRO
IPC分类号： B21C51/00 , G01B11/06 , G01B15/02 , G01B21/08

5. 发明专利

JPH06317564A METHOD AND APPARATUS FOR DETECTION OF UNDETECTED STATE OF FLAW BY FLUX LEAKAGE DETECTION MACHINE 失效
公开(公告)号：JPH06317564A
公开(公告)日：1994-11-15
申请号：JP6170093
申请日：1993-03-22
申请人： KAWASAKI STEEL CO , KRAUTKRAEMER JAPAN
发明人： KATAYAMA JIRO , OGAWA TAKAYA , OGIWARA TAKAAKI
IPC分类号： G01N27/83
摘要： PURPOSE:To prevent a material from being judged as acceptable even when its flaw has not been sensed yet and to guarantee a quality with high reliability by a method wherein the noise level of a flaw detection signal generated during a flaw-detection inspection is compared with a reference monitoring-signal level which has been set arbitrarily. CONSTITUTION:When a magnetic flux generated by an exciting yoke installed on a rotor is passed through a round steel bar, a leakage flux is generated when a flaw exists on the surface. The leakage flux is detected by a probe unit 12 having a structure in which the round steel bar is pressed by an arm, a spring and the like, and the flaw on the surface is detected. When the probe unit 12 is separated and levitated from the round steel bar due to any problem in the arm, the spring and the like for the probe unit 12, a flaw-detection analog voltage signal 28 becomes nearly zero. Then, a flaw-undetected-state detection apparatus 32 which detects the levitation of the probe unit 12 so as to sense an undetected state of a flaw is installed, the levitation of the probe unit 12 and the cutoff state of a signal line 22 can be always monitored during a flaw detection, and a problem that even a material whose flaw has not been sensed is judged to be a good material is solved.

6. 发明专利

JPH04274805A SELECTING USE METHOD FOR SHEARING EQUIPMENT FOR THICK STEEL PLATE 失效
公开(公告)号：JPH04274805A
公开(公告)日：1992-09-30
申请号：JP3269991
申请日：1991-02-27
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA JIRO
IPC分类号： B21B15/00 , B23C3/12 , B23D19/06
摘要： PURPOSE:To compare and select the side shear and the edge miller with higher processing capacity with respect to plate thickness and the shear amount by the shear amount calculated from shape information and finish dimensions after rolling. CONSTITUTION:In a thick steel plate manufacturing line provided with two kinds of shearing equipments of a side shear and an edge miller in the same line, a shape of a steel plate at the time point of rolling end is measured between a rolling mill and the shearing equipment in the line, and by comparing it with target finish dimensions, the shear amount is calculated. Subsequently, the processing efficiency of the side shear and the edge miller to thickness of the steel plate and the shear amount is compared, and the shearing equipment of higher efficiency is selected by a shearing equipment selecting device 8. In such a way, the yield of a product and the production efficiency can be improved.

7. 发明专利

JP2000088527A DIMENSION MEASURING APPARATUS FOR SHAPE STEEL 失效
公开(公告)号：JP2000088527A
公开(公告)日：2000-03-31
申请号：JP25619998
申请日：1998-09-10
申请人： KAWASAKI STEEL CO
发明人： MATSUMOTO MINORU , KATAYAMA JIRO , FUKUTAKA YOSHIKI , ANABUKI YOSHINORI
IPC分类号： G01B11/02 , G01B11/24
摘要： PROBLEM TO BE SOLVED: To provide a dimension measuring apparatus for shape steels more excellent than before in the respect of its measuring efficiency and function. SOLUTION: This is a dimension measuring apparatus for shape steels which has a pair of, upper and lower, guide shafts 7, a pair of, upper and lower, laser range finders 3 which are travelable back and forth freely along individual guide shafts and revolvable, a motor 9 for running each laser range finder independently, and a correcting strip 5 having an already-known shape and arranged at a specified position between a substance to be measured and at least one end of the traveling back-and-forth section.

8. 发明专利

JPH02102407A SAMPLE CALIBRATING DEVICE FOR ROLLING NEARBY THICKNESS GAUGE 失效
公开(公告)号：JPH02102407A
公开(公告)日：1990-04-16
申请号：JP25292588
申请日：1988-10-08
申请人： FUJI ELECTRIC CO LTD , KAWASAKI STEEL CO
发明人： UNO TOSHIAKI , KATAYAMA JIRO
IPC分类号： G01B15/02
摘要： PURPOSE:To enable easy, safe, and efficient sample calibration with high accuracy by mounting a calibration sample plate on a sample mount plate at a specific position and measuring it with good reproducibility in the same state with a thick plate to be rolled. CONSTITUTION:The thick plate to be rolled and conveyed in the gap between front and rear conveyor rollers 2A and 2B arrayed nearby a rolling machine in irradiated with radiation from a radiation source container 8 and an inspection device above it detect the thickness of the thick plate from the quantity of radiation. The calibrating device 10 for the thickness gauge consists of the sample plate 11, the sample mount substrate 12, and a positioning columns 13. Then the two columns 13 are inserted into the container 8 from above and fixed in a vertically upward direction and the substrate 12 is united thereupon by adjusting the height. This substrate 12 is suspended by the rollers 2A and 2B, the sample plate 11 of prescribed thickness is mounted at the irradiation position of the radiation, and the distance from the container 8 is equalized to the thick plate to be rolled. This device 10 is fixed with good reproducibility and easy to disassemble, carry, and handle.

9. 发明专利

JPS62288506A METHOD FOR MEASURING PLANAR SHAPE OF MATERIAL TO BE ROLLED 失效
公开(公告)号：JPS62288506A
公开(公告)日：1987-12-15
申请号：JP13310586
申请日：1986-06-09
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA JIRO
IPC分类号： G01B11/24
摘要： PURPOSE:To enhance shape measuring accuracy without being affected by the lowering in the temp. of the end part of a material to be rolled, by detecting the position of the end surface of the material to be rolled without detecting the emitted beam from the material to be rolled and detecting the emitted beam from the material to be rolled on the basis of the end surface position detection signal to measure the shape of the material to be rolled and correcting the shape measured value obtained. CONSTITUTION:In measuring the plane shape of a material 2 to be rolled subjected to hot rolling, a shape measuring process 4 for detecting the emitted beam from the material 2 to be rolled to measure the shape of said material, an end surface position detecting process 20 for detecting the end surface of the material 2 to be rolled without using the emitted beam from the material 2 to be rolled and a correction process 27 for correcting the measured value in the shape measuring process 4 on the basis of the end surface position detection signal from the end surface position detecting process 20 are provided. The end surface position detecting process 20 is performed by detecting the blocking of laser slit beam by the end part of the material to be rolled. By this constitution, the plane shape of the material 2 to be rolled during rolling can be measured accurately without receiving the effect of the lowering in the temp. of the end part of the material 2 to be rolled and can be determined accurately.

10. 发明专利

JPS6267405A METHOD FOR MEASURING THICKNESS BY RADIATION TRANSMITTING TYPE THICKNESS METER 失效
公开(公告)号：JPS6267405A
公开(公告)日：1987-03-27
申请号：JP20838085
申请日：1985-09-20
申请人： KAWASAKI STEEL CO , FUJI ELECTRIC CO LTD
发明人： KATAYAMA JIRO , MONNO ASAO
IPC分类号： G01N23/06 , G01B15/02
摘要： PURPOSE:To make it possible to measure a thickness with high accuracy, by detecting the elongation of a housing to which a radiation source and a radiation intensity detector are fixed in opposed relationship and correcting the output of a radiation intensity detection value based on the detection value. CONSTITUTION:When the thickness of a rolling material 14 is measured from the transmission quantity of radiation in such a state that a radiation source 10 and a radiation intensity detector 16 are mounted to the housing of a rolling machine 60, the elongation of the housing of the rolling machine 60 generated at the time of rolling is detected. The elongation quantity of the housing may be calculated according to a gauge meter system, for example, by measuring rolling repulsive force by load cells 54A, 54B. This elongation quantity is inputted to a second correction apparatus 56 and, according to the correction value, the detection value (t) from the radiation intensity detector 16 is corrected. By this method, the effect of the variation in distance between the radiation source 10 and the detector 16 can be removed and a rolling thickness can be accurately measured.

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