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1. 发明专利

JP2008076180A Expanded pipe confirmation and inspection device 有权
标题翻译：膨胀管道确认和检查装置
公开(公告)号：JP2008076180A
公开(公告)日：2008-04-03
申请号：JP2006254686
申请日：2006-09-20
申请人： Hitachi Ltd , Shin Nippon Hihakai Kensa Kk , 新日本非破壊検査株式会社 , 株式会社日立製作所
发明人： SAKAI MAKOTO , MIYAMOTO HIROYOSHI , SAITO TOSHIHIRO , CHIBA HIROAKI , NAKAYAMA YASUMASA , MATSUYAMA HISASHI , TSUJI SHINICHI , INOUE JUNJI
IPC分类号： G01N27/90 , G01N29/44 , G01S5/30
摘要： PROBLEM TO BE SOLVED: To provide an expanded pipe confirmation and inspection device having an expanded pipe inspection means for individually detecting the joining state of the heat transfer pipe expanded to be joined to a tube plate and a heat transfer pipe position measuring means for measuring the position of the inspected heat transfer pipe.
SOLUTION: The expanded pipe confirmation and inspection device has the expanded pipe inspection means 14 for inspecting the joining of the tube plate 11 and a heat transfer pipe 12 by an eddy current sensor 13 and the heat transfer pipe position measuring means 15 for measuring the position of the heat transfer pipe 12. The heat transfer pipe position measuring means 15 has the first ultrasonic transmitter 26 attached to the insertion jig 16 of the eddy current sensor 13, the first, and second ultrasonic receivers 28 and 29 arranged on the tube plate 11, the second and third ultrasonic transmitters 38 and 39 arranged in the vicinity of the tube plate 11 and an insertion jig position operation part 40 for calculating the propagation time of an ultrasonic pulse to the first and second ultrasonic receivers 28 and 29 from the first ultrasonic transmitter 26 to calculate the position of the insertion jig 16 on the tube plate 11.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有扩展管检查装置的扩管管确认和检查装置，用于分别检测膨胀到管板的传热管的接合状态和传热管位置测量装置用于测量检查的传热管的位置。解决方案：膨胀管确认和检查装置具有扩展管检查装置14，用于通过涡流传感器13和传热管位置测量装置15检查管板11和传热管12的接合，传热管位置测量装置15用于测量传热管12的位置。传热管位置测量装置15具有安装在涡流传感器13的插入夹具16上的第一超声波发射器26，布置在其上的第一和第二超声波接收器28和29 管板11，布置在管板11附近的第二和第三超声波发射器38和39以及用于从第一和第二超声波接收器28和29计算超声脉冲的传播时间的插入夹具位置操作部40 第一超声波发射器26计算插入夹具16在管板11上的位置。版权所有：（C）2008，JPO＆INPIT

2. 发明专利

JP2005111594A End face machining device 审中-公开
标题翻译：端面加工设备
公开(公告)号：JP2005111594A
公开(公告)日：2005-04-28
申请号：JP2003346855
申请日：2003-10-06
申请人： Fuji Kuki Kk , Hitachi Ltd , 不二空機株式会社 , 株式会社日立製作所
发明人： SAKAI MAKOTO , ITO ISAMU , IKEDA TSUTOMU , SHIMIZU KAZUYA
IPC分类号： B23B45/00
摘要： PROBLEM TO BE SOLVED: To improve a defect that machining workability is worsened due to instability caused by vibration in vertical and lateral directions or the like in pressing a cutting edge to the end face of a pipe to cut the end face.
SOLUTION: This end face machining device has a detachable speed reducing case 3 disposed between a driving case 1 storing an air motor 4, and a machining case 2 storing the cutting edge 17 driven by the air motor 4. A speed reducing means 25 for reducing the rotating speed of the air motor 4 and cutting edge 17 is provided in the speed reducing case 3.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了改善由于将切割刃压入管的端面而导致的垂直和横向等振动引起的不稳定性而加工加工性恶化的缺陷，从而切断端面。解决方案：该端面加工装置具有设置在存储空气马达4的驱动箱1和存储由空气马达4驱动的切削刃17的加工箱2之间的可拆卸的减速箱3.减速装置减速箱3中设置有用于降低气动马达4和切削刃17的转速的机构25。（C）2005，JPO＆NCIPI

3. 发明专利

JP2005028485A Tube machining device 审中-公开
标题翻译：管加工设备
公开(公告)号：JP2005028485A
公开(公告)日：2005-02-03
申请号：JP2003194884
申请日：2003-07-10
申请人： Fuji Kuki Kk , Hitachi Ltd , 不二空機株式会社 , 株式会社日立製作所
发明人： SAKAI MAKOTO , ITO ISAMU , IKEDA TSUTOMU , NARIMATSU YOSHITAKA , KOEDA SUSUMU , SHIMIZU KAZUYA
IPC分类号： B23B45/14 , B21D39/20
摘要： PROBLEM TO BE SOLVED: To provide a tube machining device for a heat exchanger improving workability and performing high accuracy machining by holding a tube working machine into a prescribed position.
SOLUTION: A holding device 19 for holding a tube machining edge 1 provided at the tube machining device, into a prescribed position is provided at the tip of the tube machining edge 1. The holding device 19 is composed of a radially expansible cylindrical body 11 insertable in a small diameter tube 16 to be machined, a wedge-shaped collet body 9 for radially expanding/contracting the cylindrical body 11, and an adjusting knob 4 for adjusting the collect body 9 to be taken in and out of the cylindrical body 11. The diameter of the cylindrical body 11 is changed by the adjusting knob 4 to hold the small diameter tube 16 by the holding device 19.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于热交换器的管加工装置，通过将管加工机器保持在规定位置来提高加工性并进行高精度加工。解决方案：在管加工边缘1的前端设置有用于将设置在管加工装置上的管加工刃1保持在规定位置的保持装置19.保持装置19由径向可膨胀的圆柱形主体11可插入待加工的小直径管16中，用于径向扩张/收缩圆柱体11的楔形夹头本体9和用于调节收集体9的调节旋钮4，该收集体9被带入和取出圆柱体圆筒体11的直径通过调节旋钮4改变，以通过保持装置19保持小直径管16。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JPH1010097A DEVICE AND METHOD FOR INSPECTING LEVITATION PERFORMANCE OF MAGNETIC DISC 失效
公开(公告)号：JPH1010097A
公开(公告)日：1998-01-16
申请号：JP16272396
申请日：1996-06-24
申请人： HITACHI LTD
发明人： YONEKAWA TAKAO , SHODA MITSUHIRO , YAMAGUCHI NOBUYA , SAKAI MAKOTO
IPC分类号： G01N29/14 , G11B5/84
摘要： PROBLEM TO BE SOLVED: To provide a disc levitation performance inspecting method for inspecting head levitation performance of a magnetic disc to determine whether or no it is defective. SOLUTION: An AE signal produced from an inspection head 1-2 is passed through an amplifier 1-3, a filter 1-4, and an envelope detector 1-5 and is waveform-generated. As one cycle of this waveform is converted from analog to digital form and sampled into a waveform processing device 1-9, a peak value histogram for an entire measuring range is calculated. Then a variety of numerical processes for extracting a parameter showing the shape of the histogram are performed to extract numerical values derived from projections, roughness, and waviness on a disk surface, so as to determine whether or not the disc is defective as to levitation performance.

5. 发明专利

JPH08304219A DEVICE AND METHOD FOR INSPECTING HEAT EXCHANGER TUBE OF HEAT EXCHANGER 失效
公开(公告)号：JPH08304219A
公开(公告)日：1996-11-22
申请号：JP11422495
申请日：1995-05-12
申请人： HITACHI LTD
发明人： TOMITA ISAMU , MIYAMOTO ISAYOSHI , SAKAI MAKOTO , OBARA TETSUO
IPC分类号： G01M3/04 , F17D5/06 , G01M3/24
摘要： PURPOSE: To detect very small through holes by acquiring ultrasonic waves generated by the differential pressure of a fluid caused by the leakage of outside air into a heat exchanger tube when the tube is evacuated with an acquisition sensor before the ultrasonic waves are absorbed into the tubesheet of the tube. CONSTITUTION: Since both ends of a heat exchanger tube 14 are plugged up with acquisition sensor-side closing plugs 17 and 18 and the inside of the tube 14 is maintained at a high vacuum by operating a vacuum pump 24, outside air blows in the tube 14 when a leaking section 40 exists. An acquisition sensor 16 provided in the tube 14 measures ultrasonic waves. Since leakage inspections are performed by acquiring the ultrasonic waves, the inspections are hardly affected by low-frequency ambient noise and the sensitivity of the inspections can be set at a high level. Then, the ultrasonic waves are acquired by means of a high-sensitivity ultrasonic-wave detector 28 which can selectively detect ultrasonic waves of a specific frequency and the position, size, etc., of a sound producing or leaking point are quantitatively measured and recorded with a receiver 30 or recorder 32 by converting the ultrasonic waves into an electric current.

6. 发明专利

JPH08249655A METHOD FOR EVALUATING MAGNETIC DISC 失效
公开(公告)号：JPH08249655A
公开(公告)日：1996-09-27
申请号：JP5274095
申请日：1995-03-13
申请人： HITACHI LTD
发明人： MATSUOKA SHINYA , MARUYAMA FUMINOBU , SAKAI MAKOTO
IPC分类号： G01B21/30 , G01N27/72 , G11B5/84
摘要： PURPOSE: To highly accurately calibrate a magnetic head having a sensor even in a low floating area, by shaping/constituting a projecting part so that a speed change and an acceleration change of the magnetic head entering the projecting part are not larger than 10 times those under the projecting part. CONSTITUTION: The texture of a non-magnetic substrate 11 of Al or the like is processed to be an average roughness of approximately 2nm at 12. A 50nm- thick Cr film 13, a 30nm-thick magnetic film 14, and a 40nm-thick carbon protecting film 15 are sequentially formed on the surface of the substrate 11 by sputtering. A plurality of projections 16 are formed on the film 15. For this purpose, the film 15 at a position of a 35nm radius of the substrate 11 is covered with a masking member, with a 1×3mm opening part secured, spherical Teflon particles of an average particle size of 10μm are applied a plurality of number of times by an electrostatic application method and the film 15 is etched, whereby projections 16 are formed. A magnetic head 43 is placed on the surface of a disk 42, and the disk 42 is rotated. The floating head 43 is moved to the projections and the floating amount is obtained. The projections are formed so that a speed change and an acceleration variation of the head entering the projections are not larger than 10 times those under the projections.

7. 发明专利

JPH10293922A MAGNETIC RECORDING MEDIUM MANUFACTURING BURNISH HEAD STRUCTURE 失效
公开(公告)号：JPH10293922A
公开(公告)日：1998-11-04
申请号：JP10134697
申请日：1997-04-18
申请人： HITACHI LTD
发明人： SAKAI MAKOTO , MATSUOKA SHINYA , KIKUCHI KOICHI
IPC分类号： G11B5/84
摘要： PROBLEM TO BE SOLVED: To improve a magnetic recording medium surface projection removal performance of a burnish head by making a shape of a lattice formed with grooves on a magnetic recording medium manufacturing varnish head slider surface a polygon so that two opposite sides become parallel against the advance direction. SOLUTION: The shape of the pad part 1 of the burnish head slider surface is a parallelogram that an angle between two opposite sides is 45 deg. and 135 deg. extent. Thus, the grooves becoming parallel to the advance direction between adjacent pads become an escape groove of lubricant, and become the escape groove also for air and foreign matter kinds flowing through the burnish head slider surface. When a radius of curvature of a burnish slider edge part 2 is 20 μm or below, impact force is large, and a damage is confirmed, and when the radius of curvature is 500 μm or above, since a positive pressure floating function acts, the radius of curvature of the slider edge part is made 20 μm or above and 500 μm or below.

8. 发明专利

JPH10241156A MAGNETIC DISC AND ITS MANUFACTURE 失效
公开(公告)号：JPH10241156A
公开(公告)日：1998-09-11
申请号：JP4526397
申请日：1997-02-28
申请人： HITACHI LTD
发明人： TANAKA TOMOHIRO , KIKUCHI KOICHI , AKAMATSU KIYOSHI , SAKAI MAKOTO
IPC分类号： G11B5/84
摘要： PROBLEM TO BE SOLVED: To provide a magnetic disc which can realize the lifting start height of less than 24nm of a magnetic head and the manufacturing method of the disc. SOLUTION: A magnetic disc substrate 1 is turned in a direction of an arrow A and a tape 6 to which machinning fluid 5 containing free grits is applied is pressed against the whole surface of the substrate by a rubber roller 7 which is a pressing member while the tape 6 is made to travel in a direction of an arrow B so as to slide relatively to the surface of the substrate 1. The tape 6 is made of plastic fibers and consists of a woven cloth of the fibers tied up into bundles. The textures of the bundles are not continuous in the longitudinal direction of the tape.

9. 发明专利

JPH08227522A METHOD FOR INSPECTING DEFECT OF MAGNETIC DISK MEDIUM 失效
公开(公告)号：JPH08227522A
公开(公告)日：1996-09-03
申请号：JP3332595
申请日：1995-02-22
申请人： HITACHI LTD
发明人： SAKAI MAKOTO , TANI KOUJI
IPC分类号： G01N27/72 , G11B5/84
摘要： PURPOSE: To efficiently execute defect inspection by providing a floating head or magnetic recording head with a strain sensor and detecting the output from the strain sensor simultaneously with ration of a magnetic disk medium. CONSTITUTION: Friction force is generated between a magnetic recording medium and the floating head when rotation is started from the state in which both are held in contact (contact start). The strain is generated in an aluminum sheet 6 by the friction force. The strain gage 7 stuck to the aluminum sheet 6 detects the strain and outputs a voltage signal. This voltage signal is amplified by an amplifier 8 and is subjected to A/D conversion by an A/D converter 9 and thereafter, the voltage is outputted to a CPU 5. The friction force is detectable from the result thereof. The inspection is executed within the time from the contact start until the rotation rises to the number of revolutions at which the warranted flying height is inspected in the load position of the magnetic recording medium and, therefore, there is no time loss.

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