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71. 发明专利

JPH0549377B2 失效
公开(公告)号：JPH0549377B2
公开(公告)日：1993-07-26
申请号：JP7595486
申请日：1986-04-02
申请人： NISSAN MOTOR , MITSUBISHI HEAVY IND LTD
发明人： TAKAHASHI RYOICHI , SATO TOMOYOSHI , TSUKAMOTO EIHIKO , MORIMOTO KAZUO , MAEDA NOBUTAKA
IPC分类号： B21H7/00 , B21H1/00 , B21H1/18 , B21H1/22

72. 发明专利

JPH05123716A ROLLING METHOD UNDER HIGH ROLLING REDUCTION 失效
公开(公告)号：JPH05123716A
公开(公告)日：1993-05-21
申请号：JP31316791
申请日：1991-11-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： MIYAMOTO OSAMU , MORIMOTO KAZUO , MIZUTA KEIJI
IPC分类号： B21B1/22 , B21B15/00 , B21B27/02 , B21B27/10 , B21B45/02
摘要： PURPOSE:To perform rolling under high rolling reduction by rolling them while filling many recessed parts formed on a material to be rolled with lubricating fluid. CONSTITUTION:Many nearly rhomboidal recessed parts with a continuous ridge lines R are formed over the whole face of both sides of the material to be rolled before rolling. Thereafter, the material to be rolled is traveled so that the Y direction of one diagonal line of the formed nearly rhomboidal recessed parts coincides with the rolling direction. The material to be rolled is rolled while the recessed parts enclose the lubricating fluid. Thereby, the remaining pattern on the plate surface after rolling is thinned drastically.

73. 发明专利

JPH04333323A HOT BENDING DEVICE FOR METAL TUBE 失效
公开(公告)号：JPH04333323A
公开(公告)日：1992-11-20
申请号：JP13162791
申请日：1991-05-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： FURUKAWA HIROFUMI , OTA TAKAHIRO , MORIMOTO KAZUO , KAMO KAZUHIKO , ITO SHINGO
IPC分类号： B21D7/16 , H05B6/10 , H05B6/42
摘要： PURPOSE:To prevent the development of wrinkle and bulge due to buckling developed at the time of bending to a metal tube and to obtain a hot ending device, which can reduce thinned thickness rate at back side of the tube. CONSTITUTION:The tube 1 passing through between guide rollers, is passed through a heating coil 4 set to the outer periphery at the bending part and an annular magnetic shield material 5 set to both sides of this coil 4, and the prescribed position in the tube is fixed with an arm. Then, by supplying high frequency current in the heating coil 4, the tube 1 is heated, and at the time of becoming the prescribed temp., load is given to one end of the tube 1 with a hydraulic cylinder 3 to execute the necessary bending work. The heating coil 4 is cooled with water in the inner part thereof and a part of the water is injected to the outer surface of tube 1 through an injection nozzle 8. At both sides of the heating coil 4, copper tubes 5 cooling the liner part with the flowing water, are set while insulating with the heating coil as the magnetic shield material. Then, by making distance between the heating coil 4 and the tube 1 at the back side of tube 1 larger than that at the front side of tube, eddy current density in the tube material at the back side is made to low, and heating temp. is made to low.

74. 发明专利

JPH04157003A JOINING METHOD OF ROLLED STOCK 失效
公开(公告)号：JPH04157003A
公开(公告)日：1992-05-29
申请号：JP27588990
申请日：1990-10-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： MORIMOTO KAZUO , FURUMOTO HIDEAKI , HAYASHI KANJI , AKITA HIDEKI
IPC分类号： B21B1/26 , B21B15/00
摘要： PURPOSE:To enable rolling without the necessity of complicated operation by cutting the tip and rear end parts so that they are mutually made into a parallel fitting shape and forming the side faces of either parallel fitting part into a tapered shape in the thickness direction at the time of joining the rear end part of a preceding rolled stock and the tip part of the following rolled stock. CONSTITUTION:The rear end part of the preceding rolled stock l after rough rolling and the tip part of the following rolled stock 1a are joined and finish rolling is continuously executed. The above tip and rear end parts are cut so that they are mutually made into the parallel fitting shape and the side faces of the parallel fitting parts 2 in arbitrary places of one or both sides of either the tip or rear end part are formed into a tapered shape. The both are fitted in the same plane and the tip and rear end parts are joined utilizing volume repletion due to ununiform width expansion of sheet when rolling. In this way, rigid joining can be expected by generating large contact pressure between joined surfaces utilizing plastic deformation pressure accompanied to rolling process.

75. 发明专利

JPH0475705A ROLLING METHOD 失效
公开(公告)号：JPH0475705A
公开(公告)日：1992-03-10
申请号：JP18529090
申请日：1990-07-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： MORIMOTO KAZUO , MIYAMOTO OSAMU , MIZUTA KEIJI , HIASA YUKIO , FURUMOTO HIDEAKI
IPC分类号： B21B1/22 , B21B15/00 , B21B45/02
摘要： PURPOSE:To reduce drawing-down force by specifying the ratio of the wall surface of recessed part to the total area of rolled stock in the case of rolling the material to be rolled that is rolled by confining a fluid for lubrication in the recessed part on the surface of material to be rolled. CONSTITUTION:In a rolling mill 11 with a machine 13 for adding recessed part with which the recessed parts 12 are formed on both surfaces of a band plate M, the fluid L for lubrication is sprayed on the contact part between work rolls 14, 15 and the band plate M when the band plate M is transported into the rolling mill 11 and the fluid L is temporarily confined in the recessed parts 12. At this time, the area ratio of the recessed part 12 to the total surface area of the bank plate M is taken as 20 - 70%. In this way, the boundary film is formed over the contact part between the work rolls 14, 15 and the band plate M and roll wear is decreased, so rolling load can be decreased.

76. 发明专利

JPH0471701A METHOD FOR IMPARTING GLOSS ON SURFACE OF METALLIC SHEET 失效
公开(公告)号：JPH0471701A
公开(公告)日：1992-03-06
申请号：JP18283590
申请日：1990-07-12
申请人： MITSUBISHI HEAVY IND LTD , SUMITOMO METAL IND
发明人： HAYASHI KANJI , MORIMOTO KAZUO
IPC分类号： B21B1/22 , B21B3/00 , B21B3/02 , B21B13/02
摘要： PURPOSE:To improve the degree of gloss by providing a metallic sheet and roll so as to generate slip in the width direction between them. CONSTITUTION:Work rolls 2a, 2b have a revolving axis which is in a horizontal plane respectively and also both axes are respectively inclined at an angle thetainversely from the direction that is orthogonally crossed to the transport direction of metallic sheet. When a metallic sheet is cold rolled with such work rolls 2a, 2b, the angle theta is made between the direction of traveling velocity vS of the metallic sheet 1 and the direction of rotational velocity vR of the work rolls 2a, 2b and, because the velocity ¦vS¦ of the metallic sheet 1 is approximately equal to the rotational velocity ¦vR¦ in the vicinity of position where the metallic sheet 1 is released from the work rolls 2a, 2b, the component force of slip in the width direction is generated between the metallic sheet 1 and the work rolls 2a, 2b and the outer layer of the metallic sheet 1 is applied by shear deformation in the width direction.

77. 发明专利

JPH0465618A THICKNESS MEASURING INSTRUMENT 失效
公开(公告)号：JPH0465618A
公开(公告)日：1992-03-02
申请号：JP17618090
申请日：1990-07-05
申请人： MITSUBISHI HEAVY IND LTD
发明人： MORIMOTO KAZUO , WAKAYAMA SEIICHI , TAKEUCHI IWAO
IPC分类号： G01B7/00 , G01B17/02
摘要： PURPOSE:To easily the thickness reduction distribution of piping by measuring the internal thickness from an internal surface reflected signal among the ultrasonic wave signals of an ultrasonic sensor, and calculating the thickness reduction state and coloring and displaying it. CONSTITUTION:The position of a contact which is short-circuited with an ultrasonic probe 1 is detected by a position detection sensor 2 and the position in movement is found through an encoder 13. At each ultrasonic probe position, the generation time of the internal surface reflected signal in the ultrasonic wave signal of the ultrasonic sensor 11 in the ultrasonic probe 1 is measured to measure the thickness at each point. Position information and thickness information at each point are led to an arithmetic circuit 7 and the thickness reduction state is calculated from those pieces of information and thickness data at the time of no thickness reduction and displayed on a display unit 8. For the display, a surface scanned by the ultrasonic probe 1 is expanded into a plane. Positions on the plane correspond to inspection positions calculated with the information on the position of the ultrasonic probe 11 and the arrangement of the ultrasonic wave sensor 11 in the ultrasonic probe 1 and on the points colors corresponding to the thickness reduction are displayed.

78. 发明专利

JPH03207512A SPLIT TYPE REINFORCED ROLL FOR ROLLING MILL 失效
公开(公告)号：JPH03207512A
公开(公告)日：1991-09-10
申请号：JP60990
申请日：1990-01-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： MATSUOKA HIROSHI , FUKUYAMA GORO , MORIMOTO KAZUO , KAJIWARA TETSUO
IPC分类号： B21B13/02 , B21B27/03 , B21B27/05 , B21B29/00
摘要： PURPOSE:To exactly adjust the plate shape of quarter part in the plate breadth direction by making the center roll of the one side split type reinforced rolls of the rolling mill and the side rolls of the other side split reinforced rolls larger in breadth than the other rolls. CONSTITUTION:The center eccentric shaft part 1a of the upper roll shaft 1 is longer than the quarter eccentric shaft part 1b and the side eccentric shaft part 1c, and a pair of left and right side eccentric shaft parts 11c longer than the eccentric shaft parts 11a, 11b of the lower roll shaft 11 are formed. When the rolling of the strip S of wider plate breadth W is executed, the crown pattern at the rolling reduction position of the lower split type reinforced roll B is made straight, and the crown pattern is adjusted corresponding to the plate shape of the strip S while rotating the roll shaft 1. Therefore, all reinforced rolls 3a-3c of the upper split type reinforced roll A operate and the adjusting of the quarter part in plate breadth direction is exactly executed. When the plate width of the strip S is narrow, the rolls 13a-13c of the reinforced roll B operate to correct the defective plate shape of strip S.

79. 发明专利

JPH02284711A SPLIT TYPE ROLLER OF ROLLING MILL 失效
公开(公告)号：JPH02284711A
公开(公告)日：1990-11-22
申请号：JP10352189
申请日：1989-04-25
申请人： MITSUBISHI HEAVY IND LTD
发明人： FUKUYAMA GORO , HAYASHI KANJI , MORIMOTO KAZUO , KAJIWARA TETSUO
IPC分类号： B21B27/05
摘要： PURPOSE:To change the eccentric state of respective split rollers by the revolution of a roll shaft so as to generate an arbitrary roll crown by supporting the split rollers on offcentered plural roller shaft parts and housing the rollers in one cylindrical sleeve. CONSTITUTION:Five points of roller journal parts 31a, 31b, 31c which are different in eccentric directions and diameters are formed on the roll shaft 31. Roller bearings 32a, 32b, 32c are respectively fitted onto these journal parts. The outer rings of these bearings constitute the split rollers 40 which are freely rotatable with the roller journal parts. A rack bar 35 is moved upward and downward by controlling a geared motor and the roll shaft 31 is turned by a turning gear 34, by which the eccentric states of the respective split rollers (the respective rings of the roller bearing 32a, 32b, 32c) are changed and the patterns of the arbitrary roll crown are generated. The product quality is thus improved without impairing the surface characteristics of a steel sheet.

80. 发明专利

JPS6410168A DEFECT DETERMINING METHOD 失效
公开(公告)号：JPS6410168A
公开(公告)日：1989-01-13
申请号：JP16404687
申请日：1987-07-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： MORIMOTO KAZUO , DOI TAKASHI
IPC分类号： G01N29/04
摘要： PURPOSE:To increase the apparent spread of sound and to improve the measurement accuracy of defect side by using an oblique electromagnetic ultrasonic transducer and performing flaw detection while varying a diffraction angle thetavarying the frequency. CONSTITUTION:The oblique electromagnetic ultrasonic transducer (oblique EMAT) 8 is moved to a point (a), and the diffraction angle is varied within a range alpha by varying the frequency to detect a waveform at each frequency. Then the oblique EMAT 8 is moved successively up to a point (b) to gather similar data at respective points. Then values at respective calculation are added repeatedly in the order of (c), (d).... Consequently, the waveforms at the respective points are in phase and equal in peak as to a defect point (p) to obtain a large value, but they cancel one another except at the point (p) and the value becomes small. This processing is performed only within the range where an ultrasonic wave beam is present in consideration of the diffraction angle of the oblique EMAT 8 and the spread of an ultrasonic beam, and the processing range at each point is widened by varying the diffraction angle.

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