公开(公告)号：JP2004017088A

公开(公告)日：2004-01-22

申请号：JP2002175174

申请日：2002-06-17

Applicant: Hitachi Kyowa Engineering Co Ltd ,  Hitachi Ltd ,  日立協和エンジニアリング株式会社 ,  株式会社日立製作所

Inventor： IMANAGA AKIYOSHI ,  HANEDA MITSUAKI ,  SHIBATA NOBUO ,  SATO TOSHIMI ,  TOYODA SEIICHI

IPC: B23K9/095 ,  B23K9/12 ,  B23K9/127

Abstract: PROBLEM TO BE SOLVED: To provide a multi-layer welding method and a multi-layer automatic welding apparatus suitable for obtaining excellent welding of full penetration having no defect for a work to be welded for a bevel coupling having a decrease in dimensional accuracy such as a gap change and meandering of a welding line. SOLUTION: A plurality of mean currents by a pulse welding waveform to transfer one droplet in one pulse of a high current and by a gap width range to be outputted in a root run and other mean currents in a filled layer and a finish layer are set. In the root run, the mean current and the mean voltage corresponding to the gap width are increased/decreased in a stepped manner and outputted based on detection information on the gap width of a groove part and the positional deviation of the groove center in the right-to-left and vertical directions, and condition parameters such as the welding area, the welding speed, and the weaving width related to the gap width are calculated and increased/decreased to correct the positional deviation of a torch in the right and left direction and the vertical direction of the weld line. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2001259742A

公开(公告)日：2001-09-25

申请号：JP2000079263

申请日：2000-03-16

Applicant: HITACHI LTD

Inventor： IWAKURA AKITA ,  SATO TOSHIMI

IPC: B21D22/10 ,  B21D5/01 ,  B21D37/01

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a hollow member excellent in a forming precision in manufacturing the hollow member from a plate material by press working with using a core die. SOLUTION: Using a stock 1 preformed by primary working, a core die 2 is mounted to the stock 1 on a stage 6, the stock 1 is wound on the core die 2 being pressed by a rubber die or a rubber die/metal die from left/right. At this time, in order not to generate a positional deviation to the core die, the stock is worked while applying a load to the protrusions 2a arranged both ends of the core die 2.

公开(公告)号：JP2001121217A

公开(公告)日：2001-05-08

申请号：JP29918199

申请日：1999-10-21

Applicant: HITACHI LTD

Inventor： IWAKURA AKITA ,  SATO TOSHIMI ,  KUROKAWA TAKEO

IPC: B21D37/02 ,  B21D9/03

Abstract: PROBLEM TO BE SOLVED: To provide a flexible core rod capable of keeping a predetermined shape during the pressing and being easily pulled out after the pressing when a hollow member of a three-dimensional curved surface is pressed from a plate. SOLUTION: The flexible core rod 1 is obtained by alternately arranging split metallic rods 2a and split elastic bodies 2b such as rubber, and connecting them to each other by using a wire 3a or the like so as not to be separate from each other.

公开(公告)号：JP2000117336A

公开(公告)日：2000-04-25

申请号：JP29330498

申请日：1998-10-15

Applicant: HITACHI LTD

Inventor： IWAKURA AKITA ,  SATO TOSHIMI ,  KUMADA FUMIKATSU

IPC: B21D22/10 ,  B21D37/02

Abstract: PROBLEM TO BE SOLVED: To efficiently form a complicated shape by forming a part of a wall around a retainer of a drive punch, appropriately arranging the drive punch, and controlling the distribution of the reaction force of a female die to reduce the working force. SOLUTION: In order to efficiently form a dimple 2a of a male die 2, a rubber die 3 is pressed from a part close to a working part using a drive punch 6 and a stock 1 is formed in the shape of the dimple 2a. That is, the drive punch 6 close to the dimple 2a is elevated to locally increase the forming force of a rubber in the vicinity of a non-formed part of the stock 1. The forming force in the vicinity of the non-formed part of the stock 1 is locally increased by the effect of the drive punch 6, and the rubber can be formed. The rubber die 3 is stored in a retainer 4, the stock is set on the rubber die 3, the stock 1 is pressed by a male die 2, and wrinkles generated in the stock is suppressed by a wrinkle suppressor 5. A part of the wall around the retainer is formed by the drive punch 6.

公开(公告)号：JP2585309B2

公开(公告)日：1997-02-26

申请号：JP26817087

申请日：1987-10-26

Applicant: HITACHI LTD

Inventor： SATO TOSHIMI ,  SAKURAI TAKASHI ,  SEKI TATSURO ,  WATANABE SHINOBU

IPC: B21D3/10 ,  B21D3/14

公开(公告)号：JPH0890097A

公开(公告)日：1996-04-09

申请号：JP22476394

申请日：1994-09-20

Applicant: HITACHI LTD

Inventor： YOSHITOMI YUJI ,  TANAKA SHINJI ,  IWAKURA AKITA ,  ARAYA TAKESHI ,  NAKASAKI TAKAMITSU ,  YOKOBA NORIO ,  SATO TOSHIMI

IPC: F02C7/00 ,  B21C37/15 ,  B21D9/15 ,  B21D26/033 ,  B21D26/039 ,  B21D26/041 ,  B21D26/045 ,  B21D26/047 ,  B21D53/84 ,  B21D26/02

Abstract: PURPOSE: To precisely form a special cross-section tube by bending with loading an internal pressure in a tube-like blank in which the circumferential length of each cross-section orthogonal to the axial direction is made almost the same as the circumferential length of corresponding each cross-section tube after forming. CONSTITUTION: A blank circular tube 1 is set on a lower dies 3a, 3b and a lower holder 4b, and the blank circular tube 1 is fixed by lowering an upper holder 4a. The end part of the blank circular tube 1 is flared by advancing seal cylinders 5a, 5b, and the inside of circular tube is sealed by pressing seal members 5a, 5b at the same time. A liquid as a pressure medium is supplied inside the circular tube, filled and an air vent valve 11 is closed, further the liquid is supplied and a prescribed internal pressure is loaded inside the circular tube 1. Next, an upper die 2 is lowered and the load is applied, while the blank circular tube 1 is bent, each cross-section is formed into a special shape, and further the internal pressure is raised. In this time, the circumferential length of each cross-section orthogonal to the axial direction of the blank circular tube 1 is made essentially the same as the circumferential length of corresponding each cross-section of the special cross-section tube after forming.

公开(公告)号：JPH06257402A

公开(公告)日：1994-09-13

申请号：JP4900293

申请日：1993-03-10

Applicant: HITACHI LTD

Inventor： HARIMA AKIHIKO ,  SATO TOSHIMI ,  MURAKAMI SOTA

IPC: F01D5/06 ,  F01D25/28

Abstract: PURPOSE:To perform pin drawing-out work simply and highly efficiently by fixing a centering jig of a pneumatic pin drawing-out device on the rotor side, and drawing out a lock pin by impact force of a head pin of an air cylinder. CONSTITUTION:A pin drawing-out device consists of a large pin drawing-out device 11a, a positioning jig 13a, a reaction force absorber 12a, a compressor 15, and a control device 14. When a locking pin 2c for fixing a final stage moving blade 3a to a final stage disc 2a is drawn out, the positioning jig 13a positions the center of the locking pin 2c to be aligned with the center of a head pin of the large pin drawing-out device 11a. The medium for operating the large pin drawing-out device 11a is air, which is delivered from the compressor 15. The control device 14 regulate the pressure of compressed air according to the hardness of the locking pin to adjust striking force. Thus, since no striking flaws occur on the rotor material around a pin hole, the pin drawing-out work can be performed safely and easily, and the work safety can also be ensured.

公开(公告)号：JPS61127854A

公开(公告)日：1986-06-16

申请号：JP24957784

申请日：1984-11-28

Applicant: Hitachi Ltd

Inventor： SATO TOSHIMI ,  WATANABE SHINOBU

IPC: C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/30

CPC classification number: C23C2/02 ,  C23C2/06 ,  C23C2/30

Abstract: PURPOSE:To develop composite material having high damping capacity and superior corrosion resistance, workability and adhesive property, by plating molten Zn-Al eutectoid alloy to surface of iron member, then cooling said member under a specified condition. CONSTITUTION:Surface of steel sheet is blasting treated, then degreased by aqueous NaOH soln., further neutralized by HCl and washed. Next, flux composed of ZnCl2 and NH4Cl is coated thereon by uniform thickness, said sheet is preheated to 450-550 deg.C, then passed through molten bath of Zn-Al eutectoicd alloy and molten plated. The plated layer is air cooled to temp. of boundary line between mixed phase of alpha phase + liquid phase and alpha phase in equilibrium diagram, then water cooled. Grain diameter of Zn-Al eutectoid alloy in plated layer is refined and iron member such as steel sheet covered with Zn-Al eutectoid alloy layer superior in adhesive property, workability, corrosion resistance is manufactured.

Abstract translation: 目的：通过将熔融的Zn-Al共析合金镀到铁构件的表面，开发具有高阻尼能力和优异的耐腐蚀性，可加工性和粘合性的复合材料，然后在规定的条件下冷却所述构件。 构成：对钢板表面进行喷砂处理，然后用NaOH水溶液脱脂，进一步用HCl中和洗涤。 接下来，通过均匀的厚度在其上涂布由ZnCl 2和NH 4 Cl组成的焊剂，将所述片材预热至450-550℃，然后通过熔融的Zn-Al共晶合金浴并熔融。 将电镀层空气冷却至温度。 在α相+液相的混合相和α相的平衡图之间的边界线，然后水冷却。 精炼镀层中的Zn-Al共析合金的晶粒直径，并且制造了具有优异的粘合性，可加工性，耐腐蚀性的Zn-Al共析合金层的钢板等铁构件。

公开(公告)号：JP2012045565A

公开(公告)日：2012-03-08

申请号：JP2010189202

申请日：2010-08-26

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： SATO TOSHIMI ,  SAKUMA TORAKI

IPC: B21J5/08 ,  B21J1/06

Abstract: PROBLEM TO BE SOLVED: To provide a device for thickening formation that can reduce man-hours while controlling an occurrence of buckling, and to provide a method for thickening formation.SOLUTION: The device for thickening formation allows a compressing force imparting mechanism 10 to impart a compressing force in a pipe stock axial direction to a pipe stock 2 in which a part subjected to formation is heated and causes the part subjected to formation to plastically flow while controlling the part by an inner mold 7 and outer molds 9a-9d to perform thickening formation of the part. The device for thickening formation includes: temperature sensors 39a, 40a-39h, 40h for detecting an actual temperature distribution in the pipe stock axial direction in the part subjected to formation of the pipe stock 2; and a temperature control unit 41 storing a target temperature distribution that is a target temperature distribution in the pipe stock axial direction in the part subjected to formation of the pipe stock 2 and is preset so that a target temperature of a central region in the pipe stock axial direction in the part subjected to formation of the pipe stock 2 is controlled lower than target temperatures on both ends in the pipe stock axial direction in the part subjected to formation of the pipe stock 2, and controlling the temperature so that the actual temperature distribution closes to the target temperature distribution before and during the thickening formation of the part subjected to formation of the pipe stock 2.

Abstract translation: 要解决的问题：提供一种能够减少工时以增加形成的装置，同时控制弯曲的发生，并提供增厚形成的方法。 解决方案：用于增厚成形的装置允许压缩力施加机构10将管材轴向方向上的压缩力施加到管坯2，其中加热成形的部件被加热并使得形成的部件 通过内模7和外模9a-9d控制该零件进行塑性流动，从而进行部件的增厚形成。 用于增厚结构的装置包括：温度传感器39a，40a-39h，40h，用于检测在管坯2形成的部分中管坯轴向的实际温度分布; 以及温度控制单元41，其在形成管材2的部分中存储作为管坯轴向的目标温度分布的目标温度分布，并且被预设为使得管材中的中心区域的目标温度 在形成管材2的部分中的轴向方向被控制为低于管坯2形成部分中的管坯轴向两端的目标温度，并且控制温度使得实际温度分布 在形成管材2的部分的增厚形成之前和期间接近目标温度分布。（C）2012年，JPO＆INPIT

公开(公告)号：JP2005334904A

公开(公告)日：2005-12-08

申请号：JP2004154259

申请日：2004-05-25

Applicant: Hitachi Ltd ,  株式会社日立製作所

Inventor： SHIBATA NOBUO ,  SEKI TATSURO ,  GOTO NORIAKI ,  SATO TOSHIMI

IPC: B23K26/04 ,  B23K26/00 ,  B23K26/20

Abstract: PROBLEM TO BE SOLVED: To provide a control device for welding which detects the positional slippage of each bevel of intermittent weld zones before commencing welding and automatically traces a laser beam welding torch to a specific position according to the information on the detection of the positional slippage. SOLUTION: The invented control device is equipped with a light projecting means 4, a height detector 6, a two-dimensional light receiving means 5, an image processing device 15 and a torch position controlling means 19. The light projecting means 4 irradiates light to the bevel of a portion to be welded. The height detector 6 detects the height of the portion to be welded. The two-dimensional light receiving means 5 images portions subjected to trial welding by the laser beam welding torch 1, and the bevel. The image processing device 15 processes images captured from the two-dimensional light receiving means 5. The torch position controlling means 19 controls the position of the laser beam welding torch 1 which welds the portion to be welded according to the information on the positional slippage output from the image processing device 15. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于焊接的控制装置，其检测在开始焊接之前的间歇焊接区域的每个斜面的位置滑动，并且根据关于检测的信息的自动跟踪激光束焊炬到特定位置 位置滑移。 解决方案：本发明的控制装置配备有投光装置4，高度检测器6，二维光接收装置5，图像处理装置15和割炬位置控制装置19.光投射装置4 将光照射到待焊接部分的斜面上。 高度检测器6检测待焊接部分的高度。 二维光接收装置5对通过激光焊枪1进行试焊的部分和斜面进行成像。 图像处理装置15处理从二维光接收装置5拍摄的图像。焊枪位置控制装置19根据关于位置滑动输出的信息控制焊接焊接部分的激光束焊炬1的位置 来自图像处理装置15.版权所有（C）2006，JPO＆NCIPI