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1. 发明专利

JPH1094809A ROLLING METHOD FOR ROLLING MILL AND ROLLING MILL 失效
公开(公告)号：JPH1094809A
公开(公告)日：1998-04-14
申请号：JP25280796
申请日：1996-09-25
申请人： HITACHI LTD , NIPPON LIGHT METAL CO
发明人： NARITA KENJIRO , NIHEI MITSUO , HIRAMA YUKIO , SATO KOJI , TAKAKURA YOSHIO , HORII KENJI , KONDO SHIGETOSHI , SUZUKI KAZUYOSHI , FURUTA TASUKU
IPC分类号： B21B3/00 , B21B1/22 , B21B27/10 , B21B28/04 , B21C51/00
摘要： PROBLEM TO BE SOLVED: To hold the appropriate thickness of roll coating by grinding by immidicately detecting its change even when the thickness of the roll coating is suddenly changed by a cause of some kind during rolling. SOLUTION: The coefficient of friction between upper and lower work rolls 2, 2a is calculated from the sum load and preset rolling conditions with an arithmetic unit 81 of the coefficient of friction. When the calculated value μc is over the set value μd, it is judged that the thickness of roll coating is over the optimum thickness with an arithmetic unit 82 for comparing cross axes angles and, excepting during grinding the roll coating by this control, by setting the upper and lower work rolls 2, 2a to a prescribed crossed axes angle, relative slip is made to generate between the upper and lower work rolls 2, 2a and upper and lower back-up rolls 3, 3a and the roll coating is gourd. In this way, even when the thickness of the roll coating is suddenly increased by the cause of some kind during rolling, the roll coating is immediately ground by the change of the calculated value μc, so the proper thickness of the roll coating is held.

2. 发明专利

JPH1099903A ROLLING METHOD, ROLLING MILL AND ROLLING EQUIPMENT 失效
公开(公告)号：JPH1099903A
公开(公告)日：1998-04-21
申请号：JP8693797
申请日：1997-04-04
申请人： HITACHI LTD , NIPPON LIGHT METAL CO
发明人： NIHEI MITSUO , NARITA KENJIRO , HIRAMA YUKIO , TAKAKURA YOSHIO , HORII KENJI , KONDO SHIGETOSHI , SUZUKI KAZUYOSHI , FURUTA TASUKU
IPC分类号： B21B1/32 , B21B1/22 , B21B1/34 , B21B3/00 , B21B13/14 , B21B27/10 , B21B28/04 , B21B37/00 , B21B37/28
摘要： PROBLEM TO BE SOLVED: To uniformly control surface quality such as surface gloss and simultaneously to control sheet crown and shape in the longitudinal direction of a sheet at the time of rolling a rolled stock on which coating is formed by sticking part of the rolled stock to work rolls. SOLUTION: The axial centers of the work rolls 1a, 1b are crossed on a plane parallel to a plane including the rolled stock 4, the axial centers of back-up rolls 2a, 2b are arranged perpendicularly to the direction of rolling pass and the crossed axes angle of the work rolls 1a, 1b is set and adjusted so as to become an angle in accordance with rolling conditions with a work roll crossed axes angle controller. In this way, the constant thickness of coating is always kept, the coating quantity is controlled and the surface quality of the rolled stock 4, especialy, the surface gloss is controlled in an arbitrary state or in a good state. By adjusting the crossed axes angle of the work rolls 1a, 1b, the sheet crown and shape control in the longitudinal direction of the sheet are simultaneously executed.

3. 发明专利

JP2011007153A Metal seal material with high reliability for turbines 有权
标题翻译：金属密封材料具有高可靠性的涡轮机
公开(公告)号：JP2011007153A
公开(公告)日：2011-01-13
申请号：JP2009154205
申请日：2009-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOJIMA YOSHIYUKI , ARIKAWA HIDEYUKI , MEHATA TERU , DOI HIROYUKI , TORITANI HAJIME , NARITA KENJIRO
IPC分类号： F01D11/02 , F01D25/00 , F16J15/453
CPC分类号： F01D11/02 , C22C19/00 , C22C19/058 , C22C19/07 , C23C4/073 , C23C28/02 , C23C30/00 , F01D11/001 , F01D11/122 , F05D2220/31 , F05D2300/509 , Y10T428/249961 , Y10T428/249974 , Y10T428/249981 , Y10T428/249989
摘要： PROBLEM TO BE SOLVED: To provide a metal seal material used for a sealing device in which clearance between a stationary part and a rotary part of a turbine can be reduced.SOLUTION: The metal seal material used for the sealing device of the stationary part and the rotary part of the turbine includes a surface layer and a lower layer composed of a porous metal layer, and porosity of the surface layer is smaller than porosity of the lower layer. The porosity of the surface layer is equal to or greater than 60% and less than 65%, and the porosity of the lower layer is equal to or greater than 65% and equal to or less than 75%. The porous metal layer is 0.3 to 3.0 mm in thickness, has MCrAlY alloy which uses Ni or Co for M, as a main component, and may include h-BN of solid lubricating material.
摘要翻译：要解决的问题：提供用于密封装置的金属密封材料，其中可以减少涡轮机的固定部分和旋转部分之间的间隙。解决方案：用于固定部分的密封装置的金属密封材料和涡轮机的旋转部分包括表面层和由多孔金属层构成的下层，表面层的孔隙率小于下层的孔隙率。表面层的孔隙率等于或大于60％且小于65％，下层的孔隙率等于或大于65％且等于或小于75％。多孔金属层的厚度为0.3〜3.0mm，具有使用Ni或Co作为M的MCrAlY合金作为主要成分，并且可以包括固体润滑材料的h-BN。

4. 发明专利

JP2005066614A Rolling mill and rolling method 有权
标题翻译：轧制和轧制方法
公开(公告)号：JP2005066614A
公开(公告)日：2005-03-17
申请号：JP2003297281
申请日：2003-08-21
申请人： Hitachi Ltd , Mitsubishi-Hitachi Metals Machinery Inc , 三菱日立製鉄機械株式会社 , 株式会社日立製作所
发明人： SAITO TAKEHIKO , NARITA KENJIRO , HIRAMA YUKIO , KOBAYASHI YUJIRO
IPC分类号： B21B45/02 , B21B37/00 , B21B37/32 , B21B37/38 , B21B37/76
摘要： PROBLEM TO BE SOLVED: To provide the optimum device layout by which the decreasing effect of temperature difference in the width direction by cooling a sheet is correctly measured and evaluated and to provide a rolling mill and a rolling method by which the shape of the sheet in the state of room temperature is made into a desired shape of the sheet even in the case the temperature difference remains in the width direction. SOLUTION: The rolling mill is provided with: a shape detector 15a for measuring the shape distribution of the sheet on the outlet side of work rolls 11; temperature measuring instruments 21a for measuring the temperature distribution of the sheet in the width direction between the work roll and the shape detector; devices 23a for jetting a coolant on the surfaces of a rolled stock between the work roll and the temperature measuring instrument; wiping devices 24a for removing the coolant on the surfaces of the rolled stock between the coolant jetting device and the temperature measuring instrument; a device 16 for calculating deviation from the target shape in the state of the room temperature on the basis of the measured values of the shape detector and the temperature measuring instrument; devices 17-19 for controlling the shape of the sheet by calculating the controlled variables of mechanical control means 31-33 and the work roll cooling means 20 on the basis of the deviation; and a device 22a for controlling the state of jetting of the coolant jetting device on the basis the measured value of the temperature instrument. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供最佳的装置布局，通过该装置布局正确地测量和评价通过冷却片材的宽度方向的温度差的减小效果，并且提供一种轧机和轧制方法，即使在温度差保持在宽度方向的情况下，也将室温状态的片材制成所需的片材形状。解决方案：轧机设有：用于测量工作辊11出口侧的片材的形状分布的形状检测器15a; 温度测量仪器21a，用于测量工作辊和形状检测器之间的宽度方向上的片材的温度分布; 用于在工作辊和温度测量仪器之间的轧制坯料的表面上喷射冷却剂的装置23a; 用于去除冷却剂喷射装置和温度测量仪器之间的轧制坯料表面上的冷却剂的擦拭装置24a; 基于形状检测器和温度测量装置的测量值计算在室温状态下与目标形状的偏差的装置16; 装置17-19，用于通过基于偏差计算机械控制装置31-33和工作辊冷却装置20的控制变量来控制片材的形状; 以及用于基于温度仪器的测量值来控制冷却剂喷射装置的喷射状态的装置22a。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004209531A Rolling mill and rolling method 审中-公开
公开(公告)号：JP2004209531A
公开(公告)日：2004-07-29
申请号：JP2003000931
申请日：2003-01-07
申请人： Hitachi Ltd , Mitsubishi-Hitachi Metals Machinery Inc , 三菱日立製鉄機械株式会社 , 株式会社日立製作所
发明人： SAITO TAKEHIKO , NARITA KENJIRO , HIRAMA YUKIO , KOBAYASHI YUJIRO , FUJII MOTOTSUNA
IPC分类号： B21B27/10 , B21B45/02
摘要： PROBLEM TO BE SOLVED: To provide a rolling mill and a rolling method by which a plurality of coolants having different concentrations are refined from recovered coolants with compact and low-cost constitution.
SOLUTION: In the rolling mill in which a metal plate 1 is rolled with work rolls 2a, 2b while circulating and supplying an emulsion type coolant containing an emulsifying agent, a reserve tank 10 for recovering the coolant after supply, a separator 11 for separating the recovered coolant into a high concentration coolant and a low concentration coolant with a filtration film 11a so that the percentage content of the emulsifying agent is nearly equalized with each other, high concentration coolant headers 5 for supplying the high concentration coolant to the vicinity of contact part between the work rolls 2a, 2b and the metal plate 1, and low concentration coolant headers 6 for supplying the low concentration coolant to the surfaces of the barrel parts of the work rolls 2a, 2b are provided.
COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JP2002071893A PRESS FOR RADIOACTIVE WASTE 失效
公开(公告)号：JP2002071893A
公开(公告)日：2002-03-12
申请号：JP2000259412
申请日：2000-08-29
申请人： HITACHI LTD
发明人： KONDO YOSHIKAZU , OZENI CHIKA , KANEKO SHIGEJI , NARITA KENJIRO , HIRAMA YUKIO
IPC分类号： G21F9/30 , B30B9/32
摘要： PROBLEM TO BE SOLVED: To reliably prevent ignition on a work side even when oil leakage from a hydraulic cylinder is assumed, and improve the reliability of the total press. SOLUTION: This press for the radioactive waste for pressing the work 100 generated from a spent fuel assembly comprises a fixed side case 11, a counter-compression truck 20 placed in the case 11, a ram with an upper end part 1a connected to the case 11 at least in the pressing, and the hydraulic cylinder 2 having a body 2a with the ram 1 built therein in a relatively slidable manner in the vertical direction. By prolonging the ram 1 relatively upward of the body 2a, the body 2a is lowered into the case 11, and the work 100 is held and pressed in the vertical direction between the body and the counter- compression truck 20.

7. 发明专利

JP2001343489A PROCESSING METHOD FOR RADIOACTIVE WASTE AND PROCESSING APPARATUS 失效
公开(公告)号：JP2001343489A
公开(公告)日：2001-12-14
申请号：JP2001052979
申请日：2001-02-27
申请人： HITACHI LTD
发明人： NARITA KENJIRO , KANEKO SHIGEJI , KONDO YOSHIKAZU , NAGANO SHINICHI , OZENI CHIKA , HIRAMA YUKIO , TSUTSUMI KIYOSHI
IPC分类号： G21F9/30 , B09B5/00 , G21F9/28
摘要： PROBLEM TO BE SOLVED: To provide a processing apparatus suitable for compressing and reducing volume of radioactive waste. SOLUTION: A roll press is used for compressing the residue of clad and the compression means other than the roll press is used for fuel spacer, end piece, etc., for reducing the size of the compressing apparatus.

8. 发明专利

JP2001228295A HULL WASTE VOLUME REDUCING PROCESSOR 失效
公开(公告)号：JP2001228295A
公开(公告)日：2001-08-24
申请号：JP2000042192
申请日：2000-02-21
申请人： HITACHI LTD
发明人： YOSHIDA TAKUMA , KONDO YOSHIKAZU , KANEKO SHIGEJI , NARITA KENJIRO
IPC分类号： G21C19/42 , G21F9/30 , G21F9/36
摘要： PROBLEM TO BE SOLVED: To provide a hull waste volume reducing processor capable of safe compression-reduction with a simple structure as much as possible, reducing of secondary waste generation accompanied by processing as much as possible, and producing a waste body after compression without remaining water and proper for long-term storage and final disposal. SOLUTION: Hull flakes 20 generated from a cutting stage in a reprocessing facility are passed in the gap between two rotary cylinders 2a and 2b placed underwater and compressed. At this moment, the flakes are compressed in the shape remaining a gap necessary and sufficient for evaporating water in the compressed flakes. Zircaloy powder generated in compression is discharged in pool water. The hull compression flakes are conveyed with a conveyer 4 below the rotary cylinder to a drying room 23, dried and stored from an outlet 5 into a vessel 19. The Zircaloy powder is recovered as accompanying water of Zircaloy powder and separated into solid and liquid and the filtered water is reused.

9. 发明专利

JPH05317920A ROLLING MILL AND ROLLING METHOD 失效
公开(公告)号：JPH05317920A
公开(公告)日：1993-12-03
申请号：JP12779592
申请日：1992-05-20
申请人： HITACHI LTD
发明人： NARITA KENJIRO , YASUDA KENICHI , SATO KOJI , HIRAMA YUKIO , YOSHIMURA YASUTSUGU , TAKAKURA YOSHIO
IPC分类号： B21B13/14 , B21B1/22 , B21B27/10 , B21B31/16
摘要： PURPOSE:To secure the quality of a metal plate, to prolong the life of a rolling roll and to respond to the need of different plate crown materials in a rolling mill wherein work rolls cross each other. CONSTITUTION:In structure, the axial lines of upper and lower work rolls 3,4 intersect the axial lines of upper and lower reinforcing rolls 1,2 and the work rolls intersect each other and a lubricant feeder 7 to feed lubricant is provided between the work roll and the reinforcing roll. Further, between each of the bearings 9, 10 of the upper work roll 3 and the bearings 11, 12 of the lower work roll 4 and rolling stands 8 are provided with a hydraulic cylinder 13 to move the bearings of the upper and lower work rolls 3, 4 at the same time in the rolling direction and a position detector 14 to detect the bearing positions, an amount of oil of the hydraulic cylinder 13 is adjusted to move the bearing of the working roll as far as a suitable position in the rolling direction and a position generating a peak load between the work roll and the reinforcing roll is changed as an influence to the plate crown is kept small.

10. 发明专利

JPH02229612A METHOD AND APPARATUS FOR CONTROLLING SHAPE IN ROLLING MILL 失效
公开(公告)号：JPH02229612A
公开(公告)日：1990-09-12
申请号：JP4928289
申请日：1989-03-01
申请人： HITACHI LTD
发明人： YASUDA KENICHI , NARITA KENJIRO , HIRAMA YUKIO , SATO KOJI
IPC分类号： B21B37/00 , B21B37/30 , B21B37/32
摘要： PURPOSE:To skilfully control the flatness of plate stock by measuring the shape distribution in the width direction of the stock, obtaining its envelope, controlling mechanical correcting means of a rolling mill by this envelope and correcting parts having a difference between the shape distribution and the envelope through roll temperature control. CONSTITUTION:This is a shape controller for a rolling mill having groups 9, 10 of coolant nozzles composed of many nozzles which are arranged in parallel in the axial direction of operation rolls and can adjust flow rate independently and a mechanical means for correcting the shape. It provides a shape detector 8 which is provided on the outlet side of the rolling mill and measures the shape distribution in the width direction of the stock. An envelope which circumscribes or inscribes the measured distribution of shape in the width direction is obtained and the mechanical means for correcting the shape (roll benders) 16, 17, 18 are controlled by using a pattern into its width direction. By obtaining difference between the shape distribution in the width direction of the stock and the envelope, and controlling the flow rate of coolant nozzle groups 9, 10 with using the width direction pattern of the difference, coolant control high in responsiveness can be performed. By this method, the time for generating the shape correction effect can be shortened and the yield of a rolled part can be improved.

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