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31. 发明专利

JPH11271032A APPARATUS AND METHOD FOR MEASURING SECTIONAL PROFILE 失效
公开(公告)号：JPH11271032A
公开(公告)日：1999-10-05
申请号：JP7807498
申请日：1998-03-25
申请人： KAWASAKI STEEL CO
发明人： MATSUMOTO MINORU , FUKUTAKA YOSHIKI , KATAYAMA JIRO
IPC分类号： G01B11/24 , G01B11/00 , G01B11/245
摘要： PROBLEM TO BE SOLVED: To make an angle detector unnecessary and enable shortening measurement time. SOLUTION: This measuring apparatus is provided with a calibration segment 2 which has a specific dimension and is arranged at a constant position in the vicinity of an object to be measured, a range finder guide 4 which has a curved section, reciprocates parallel with a specific base line 10, can contain, in an outward trip, the section of the calibration segment and the section of the object to be measured in this order in a bay via a curved bay port and can bear a plurality of optical range finders 3, and a guide mover 5 which holds the range finder guide and makes it reciprocate parallel with the base line, and has function for calibrating position and angle of each range finder. While angle and position are calibrated only in the outward trip by using calibration segment measurement results, the sectional whole profile of the object to be measured is measured.

32. 发明专利

JPH10239026A MEASURING METHOD FOR CROSS SECTIONAL SHAPE PROFILE 失效
公开(公告)号：JPH10239026A
公开(公告)日：1998-09-11
申请号：JP4533097
申请日：1997-02-28
申请人： KAWASAKI STEEL CO
发明人： MATSUMOTO MINORU , KATAYAMA JIRO , FUKUTAKA YOSHIKI
IPC分类号： G01B11/02 , G01B11/24 , G01B11/245
摘要： PROBLEM TO BE SOLVED: To provide a measuring method for a cross sectional shape profile capable of being implemented with high accuracy at a low cost without requiring an angle detector by scanning an object to be measured with a laser range finder to introduce its cross sectional shape profile. SOLUTION: A laser range finder is arranged reciprocatably to both sides of an object to be measured 60, the object 60 is scanned while the direction of the optical axis is changed in an outgoing path and a returning path, and the cross sectional shape profile of the object 60 is guided from the position of a base point S provided on the laser range finder, the distance L from the base point S to a scanning point, and the angle θ between the traveling direction and the optical axis in this measuring method for the cross sectional shape profile. A calibration piece 1 having a known shape is scanned at each measurement of the object 60, the angle is obtained from the position (x1 , x2 ) and distance (L1 , L2 ), and the profile is obtained.

33. 发明专利

JPH1019546A METHOD FOR MEASURING LENGTH OF MOVING MATERIAL TO BE MEASURED 失效
公开(公告)号：JPH1019546A
公开(公告)日：1998-01-23
申请号：JP17032796
申请日：1996-06-28
申请人： KAWASAKI STEEL CO
发明人： ARAKI KIYOMI , ORITA ASAYUKI , KOMIYAMA YOSHITAKA , KATAYAMA JIRO
IPC分类号： G01B11/04 , G01B21/06
摘要： PROBLEM TO BE SOLVED: To improve length measurement precision in shearing of steel plate. SOLUTION: A laser Doppler speed meter 17, multiple tip detectors 5a, 5b,..., and length measurement rolls 2a and 2b are provided. The value obtained by adding a distance from the tip detector 5a of 5b to a shearing machine 16 to a measurement length obtained with the laser Doppler speed meter 17 or the length measurement rolls 2a and 2d corresponding to the different between a target shearing length and the above distances is taken as a shearing length.

34. 发明专利

JPH08220019A METHOD FOR DETECTING REMAINING MILL SCALE OF HOT ROLLED STEEL PLATE 失效
公开(公告)号：JPH08220019A
公开(公告)日：1996-08-30
申请号：JP2784995
申请日：1995-02-16
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA JIRO
IPC分类号： G01N21/89 , G01N21/47 , G01N21/892
摘要： PURPOSE: To perform the secure detection of a remaining mill scale, which becomes the defective shape part at the product inspection after the measurement and shearing of a hot rolled plate that is the material in width shearing specifications, on an inspection line. CONSTITUTION: The light is applied from a light projector 5 toward the side edge part of a hot rolled steel plate 1 afters shearing. The intensity distribution of the reflected light in the direction of the width of the steel plate is measured by a light receiving device 6. A remaining mill scale 3, which becomes the defective shape part present in the side edge part of the hot rolled steel plate 1, is detected based on the change in intensity of the reflected light in the width direction based on the difference in reflectivities. Therefore, the remaining mill scale 3 present in the hot rolled steel plate 1 after the shearing can be automatically inspected without an operator on an inspecting line. At the same time, the guarantee of the total number of the width-sheared materials is achieved.

35. 发明专利

JPH0894334A SHAPE MEASURING METHOD 失效
公开(公告)号：JPH0894334A
公开(公告)日：1996-04-12
申请号：JP23469694
申请日：1994-09-29
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA JIRO , FUKUTAKA YOSHIKI
IPC分类号： G01B11/00 , G01B11/24 , G01C3/06
摘要： PURPOSE: To accurately measure shape, dimension, and position by properly adjusting the intensity of irregular reflection light from the surface of an object to be measured and detecting irregular reflection light. CONSTITUTION: When band-shaped light Lb is applied from a light source 14 to the surface of H-type steel S to be hot-rolled and the shape of the H-type steel S is measured by detecting the irregular reflection light from the surface with a light reception camera 16, oxidation accelerating agent Ox is sprayed to the surface of the H-type steel S from spraying devices 18, 20, 22, and 24 for accelerating the oxidation of the surface, the irregular reflection light intensity from the surface is measured and set to a proper state, and then irregular reflection is detected.

36. 发明专利

JPH04273010A MEASUREMENT OF PLATE THICKNESS OF THICK PLATE 失效
公开(公告)号：JPH04273010A
公开(公告)日：1992-09-29
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
摘要： PURPOSE:To aquire a plate thickness measured value which is precise along the overall length of a thick plate in the rolled direction and good in absolute precision by correcting a detected signal of a thickness meter using a non- contact optical range finder by a gamma-ray thickness gauge. CONSTITUTION:At the time of measuring plate thickness of a thick steel plate 6 being rolled by a rolling mill 17, a measured value of a gamma-ray thickness gauge 1 which is good in absolute precision and a measured value of a thickness meter 3 using a non-contact optical range finder which is good in relative measuring precision of high speed sampling are input to a multipoint plate thickness arithmetic circuit 10. The multipoint plate thickness arithmetic circuit 10 high- speedily acquires a plate thickness measured value which is good in precision by correcting the measured value of the thickness meter 3 by the measured value of the gamma-ray thickness gauge 1. This corrected plate thickness is output as the plate thickness measured value.

37. 发明专利

JPH04270908A METHOD FOR MEASURING PLANAR SHAPE OF HOT ROLLED STEEL PLATE 失效
公开(公告)号：JPH04270908A
公开(公告)日：1992-09-28
申请号：JP5365091
申请日：1991-02-27
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA JIRO
IPC分类号： G01B11/04 , B21B37/22 , G01B11/24
摘要： PURPOSE:To obtain data about the planar shape of a hot rolled steel plate including a defective shape section in the side edge section of the steel plate by accurately measuring the defective shape section. CONSTITUTION:The side edge section of a hot rolled steel plate 1 is irradiated with light from a projector 8 and the intensity distribution in the width direction of the light reflected by the side edge section is measured by means of a photoreceptor 9. Then the length 6 of a defective shape section 2 in the side edge section of the steel plate is calculated from a change in the intensity of the reflected light in the width direction so as to measure the planar shape of the steel plate excluding the defective shape section.

38. 发明专利

JPS63151811A METHOD FOR DETECTING DOWNWARD WARPAGE OF MATERIAL TO BE ROLLED 失效
公开(公告)号：JPS63151811A
公开(公告)日：1988-06-24
申请号：JP29897586
申请日：1986-12-17
申请人： KAWASAKI STEEL CO
发明人： OMORI KAZUO , YOSHII MAKOTO , NISHIZAKI HIROSHI , KATAYAMA JIRO
IPC分类号： G01B21/20
摘要： PURPOSE:To calculate the downward warpage quantity of the leading end of a material to be rolled, by measuring the impact force of the material to be rolled acting on two table rollers in front of or in the rear of a rolling machine to estimate the angle of collision of the leading end of the material to be rolled to the table rollers. CONSTITUTION:The angle theta0 of collision of a downward warpage part 1a at the time of the collision with a table roller 3 can be shown by theta0=cos (1-S/R) when downward warpage quantity is set to S and the radius of the roller is set to R. When it is supposed that the speed of a steel plate in the horizontal direction thereof is equal to the peripheral speed of the roller, the pressing force F of the steel plate can be expressed by F=F1.R[(theta0-theta)-(sintheta0-sintheta)] (wherein K1 is a definite value showing the bending rigidity of the roller and theta is the angle from the upper end of the roll to a material contact point). The bending force W of the steel plate can be expressed by W=K2/K1).R.(costheta-costheta0) (wherein K2 is a definite value showing the rigidity of a rolled material). On the basis of these relational expressions, the angle theta of collision is calculated from the pressing force F or the bending force W and substituted into theta0=cos(1-S/R) to make it possible to calculate the downward warpage quantity S.

39. 发明专利

JPS6327708A RADIATION TRANSMISSION TYPE THICKNESS GAGE 失效
公开(公告)号：JPS6327708A
公开(公告)日：1988-02-05
申请号：JP17253286
申请日：1986-07-22
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA JIRO
IPC分类号： G01N23/06 , G01B15/02
摘要： PURPOSE:To measure the thickness of an article to be measured over the entire length thereof with good accuracy, by detecting that a transient phenomenon of high voltage becomes stable before performing thickness measuring operation. CONSTITUTION:A part of the high voltage command value Va outputted from a subtraction amplifier 7 is inputted to a high voltage stable point detection circuit 10 and, at first, a comparator 11 detects that the high voltage command value Va inputted with respect to the high voltage set value Vs inputted from an operator 9 enters a definite range value. A change rate detector 12 detects that the change rate of the high voltage command value Va inputted is a set definite value or less and a thickness converting start order S is outputted to the operator 9 by the input of both detection signals to a gate circuit 14. The operator 9 starts the counting operation for thickness conversion due to a counter 3 simultaneously with the input of the thickness converting start command S. By this method, the measuring accuracy of the leading end of an article to be measured low in measuring accuracy heretofore can be enhanced to a large extent.

40. 发明专利

JPS61223507A RADIATION TRANSMITTING THICKNESS METER FOR CONTROLLING ROLLING 失效
公开(公告)号：JPS61223507A
公开(公告)日：1986-10-04
申请号：JP6322085
申请日：1985-03-29
申请人： FUJI ELECTRIC CO LTD , KAWASAKI STEEL CO
发明人： MONNO ASAO , TEZUKA SAKAE , KATAYAMA JIRO
IPC分类号： G01B15/02 , G01N23/06
摘要： PURPOSE:To make it possible to automatically and simply perform the calibration of the graduations of a thickness meter, in the path of radiation beam reaching a detector from a radiation source, by providing a plurality of thickness sample position setting mechanisms. CONSTITUTION:A thickness sample 31a is arranged to a position for transmitting radioactive rays from a radiation source capsule 27 but, when a disc 30 is stepwise revolved around an axis S3 by a motor 33, a thickness sample 31b can come to a position for transmitting radioactive rays from the radiation source capsule 27 in place of the thickness sample 31a. Because a controller preliminarily stores the thickness dimension of each sample, the thickness dimension of each positionally set sample actually measured through a detector 2, a counter 50 and a computer 48 is successively compared with the stored dimension to make it possible to automatically perform the multi-point calibration of graduations.

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