Pipe bending machine and pipe bending method
    31.
    发明专利
    Pipe bending machine and pipe bending method 有权
    管道弯曲机和管道弯曲方法

    公开(公告)号:JP2005161324A

    公开(公告)日:2005-06-23

    申请号:JP2003400290

    申请日:2003-11-28

    Abstract: PROBLEM TO BE SOLVED: To provide a pipe bending machine capable of preventing buckling and wall thickness reduction when a pipe is bent, and a pipe bending machine capable of freely changing the circumferential length of the pipe.
    SOLUTION: The pipe bending machine has a bending die 1 having a groove part of a shape corresponding to the bending shape, a clamp 2, a pressing die 3, a pressing means 8 and a control means 6. The pressing means 8 presses, in the direction of the line, the pipe at a point at which the line passing through a point where the bending die 1 abuts on a pipe p and the center of rotation o intersects with the pressing die 3. No moment unnecessary for the pipe p is applied to the pressing position of the pressing means 8. In addition, by setting the circumferential length of a combined portion of the groove part and the pressing die 3 to be smaller than that of the pipe p, the compressive stress is applied to the pipe p, and buckling on the inner bending side and wall thickness reduction on the outer bending side can be effectively prevented.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种能够防止管弯曲时的弯曲和壁厚减少的弯管机,以及能够自由地改变管的周向长度的弯管机。 解决方案:弯管机具有弯曲模具1,其具有与弯曲形状对应的形状的凹槽部分,夹具2,压模3,加压装置8和控制装置6.压制装置8 在通过弯曲模具1与管道p邻接的点和旋转中心o与挤压模具3相交的点处的线处,在管线的方向上压入管道。对于 管p被施加到按压装置8的按压位置。此外,通过将槽部和压模3的组合部分的周长设定为小于管p的周长,施加压缩应力 能够有效地防止内侧弯曲侧的弯曲,外侧弯曲侧的壁厚减少。 版权所有(C)2005,JPO&NCIPI

    Spark ignition internal combustion engine, its ignition plug, its cylinder head, and manufacturing method of cylinder head

    公开(公告)号:JP2004169671A

    公开(公告)日:2004-06-17

    申请号:JP2002339656

    申请日:2002-11-22

    Abstract: PROBLEM TO BE SOLVED: To provide an ignition plug with no housing having a few amount of electrode consumption. SOLUTION: This ignition plug comprises a plug body 1 that has a center electrode 11 supplied with high voltage and an insulator 15 for covering and insulating the outer peripheral surface thereof, and has no housing around an insulator leg section 15a positioned at least on the combustion chamber S side of the insulator. The ignition plug also comprises an annular ground electrode 3 that is annularly disposed on the combustion chamber side of a plug hole 21 for storing the plug body, lies near the outer periphery of the tip 11a of the center electrode exposed from the insulator, and is made of an electrode material different from that of a cylinder head. An spark discharge is performed across a discharge gap formed between the tip of the center electrode and the annular ground electrode, thereby igniting compressed fuel/air mixture. COPYRIGHT: (C)2004,JPO

    DEVICE, METHOD AND PROGRAM FOR RETRIEVING TROUBLE- SHOOTING DATA

    公开(公告)号:JP2003208446A

    公开(公告)日:2003-07-25

    申请号:JP2002008382

    申请日:2002-01-17

    Inventor: SATO AKIO

    Abstract: PROBLEM TO BE SOLVED: To quickly and automatically retrieve data in the past most similar to trouble shooting desired to be retrieved, at simple constitution. SOLUTION: A retrieval key group for an objective case is determined to be input (S1), a retrieval key group for each data in a trouble shooting database is read (S7), similarity between each key in the read retrieval key group for the each data and each retrieval key in the input retrieval key group is acquired in every category of the retrieval key pairs, using a similarity table (S9), and an integrated similarity between the retrieval key group for the each data in the database and the input retrieval key group is calculated based on the acquired similarity between the retrieval keys (S11). This procedure is repeated (S3, S5, S13), and a data of the highest similarity out of all the data in the database is retrieved as the data most similar to the trouble shooting desired to be retrieved (S15). COPYRIGHT: (C)2003,JPO

    GASKET BOARD OF CYLINDER HEAD GASKET

    公开(公告)号:JPH11201285A

    公开(公告)日:1999-07-27

    申请号:JP2043498

    申请日:1998-01-16

    Abstract: PROBLEM TO BE SOLVED: To prevent the excessive reduction of the surface pressure at the part separated from a fastening bolt, and to prevent the blowby of a combustion gas, by making a part close to the fastening bolt in a thin wall, while a part separated from the fastening bolt in a thick wall, even though the surface pressure at the part close to the fastening bolt is high, and that at the part far from the fastening bolt is low. SOLUTION: A gasket board 2 furnishes combustion chamber holes 2A and bolt holes 2B, and a cylinder head and a cylinder block are fastened by fastening bolts inserted to the bolt holes, so as to hold the gasket board 2 between both members. To the gasket board 2, thin wall parts 2a at the positions close to the bolt holes 2B, thick wall parts 2b at the positions separated from the bolt holes, and thickness changing parts 2c which continue the thickness of the thin wall parts and the thickness of the thickness wall parts smoothly, are formed by surrounding the combustion chamber holes 2A.

    WEAR RESISTANT CHROMIUM-BASE ALLOY
    35.
    发明专利

    公开(公告)号:JPH08225868A

    公开(公告)日:1996-09-03

    申请号:JP5326295

    申请日:1995-02-17

    Abstract: PURPOSE: To form a build-up welded surface layer free from the generation of solidifying cracks at the time of build-up welding and excellent in wear resistance and toughness by building up a Cu-base alloy obtd. by incorporating Ni, Fe, Co, Si, Cr and the other specified small amounts of C and O into Cu on the surface of a base material metal by welding. CONSTITUTION: For the purpose of improving the wear resistance, heat resistance and toughness of the surface of Al series or the like of a soft alloy member, a Cu alloy having a compsn. contg., by weight, 10 to 30% Ni, 2 to 15% Fe, 2 to 15% Co, 0.5 to 5.0% Si, 1 to 10% Cr and 2 to 15% of one or >= two kinds among Mo, Ti, Zr, Nb, V or the like, furthermore contg. X% C and Y% O (where 0 =-0.8X+0.04), and the balance Cu with

    BUILD-UP WELDING METHOD
    36.
    发明专利

    公开(公告)号:JPH08174245A

    公开(公告)日:1996-07-09

    申请号:JP31677794

    申请日:1994-12-20

    Inventor: SATO AKIO

    Abstract: PURPOSE: To enable the adjustment of a thickness in the width direction of a build-up welding layer by slantingly oscillating a high energy heat source to the longitudinal direction at the time of executing the build-up welding in the longitudinal direction by the irradiation of the high energy heat source while supplying the build-up welding material on a base material. CONSTITUTION: A laser beam L is condenced with a convex lens 3 and irradiates a valve seat part 2 around the port 1a of a cylinder head 1 through an oscillating mirror 4. The valve seat part 2 is horizontally rotated with a rotary table and the build-up welding material M is supplied to this treating surface from a build-up welding material supplying device 6, and shield gas is supplied from a shield gas supplying device 7 to execute the build-up welding in the longitudinal direction. At this time, the laser beam L irradiates slantingly to the treating surface and oscillates with a fixed width in a prescribed direction by a galvano-motor 5. By this method, the time lag is generated at the irradiating time of the laser beam L in the width direction of the working build-up welding layer, and the thickness in the width direction of the build-up welding layer can be adjusted.

    PRODUCTION OF MEMBER HAVING AMORPHOUS LAYER

    公开(公告)号:JPH03177582A

    公开(公告)日:1991-08-01

    申请号:JP31416389

    申请日:1989-12-05

    Abstract: PURPOSE:To prevent a crack from being caused in a surface build up welding layer by forming nonmagnetic alloy as a first build up welding layer and forming alloy which is made amorphous by rapid cooling coagulation thereon as a second build up welding layer and impressing high-intensity energy on this layer to perform rapid redissolution and rapid coagulation and forming an amorphous pattern. CONSTITUTION:Nonmagnetic alloy free from martensitic transformation is formed as a first build up welding layer 5 on an iron-based alloy base body 1 which causes martensitic transformation. An alloy layer 6 is formed between both. Alloy which is made amorphous by rapid cooling coagulation is formed as a second build up layer 10 thereon. An alloy layer 11 is formed between both. High-intensity energy (laser) 13 is impressed on the second build up layer 10 to perform rapid dissolution and rapid recoagulation and an amorphous pattern 14 is formed. Thereby the strength difference of an output signal is made large in detection of the magnetic characteristics in the amorphous part or the crystalline part on the surface build up welding layers.

    Method of repairing defective portion of cast part and cast part
    40.
    发明专利
    Method of repairing defective portion of cast part and cast part 有权
    修复铸件零件和铸件缺陷部分的方法

    公开(公告)号:JP2009154176A

    公开(公告)日:2009-07-16

    申请号:JP2007334184

    申请日:2007-12-26

    Abstract: PROBLEM TO BE SOLVED: To provide a method of repairing the defective portion of cast parts for repairing the defective portion such as a recessed cavity revealed to the surface of the cast parts without making an internal defect remain. SOLUTION: Since this method of repairing the defective portion includes a first step of forming a recessed part 11 having a sound layer 10 where the internal defect is suppressed in the inside by jetting high-pressure gas while melting recessed cavities 2 revealed to the surface of the cast parts 1 and its periphery and, next, a second step of repairing the cavities 2 by melting the recessed part 11 within the range of the thickness of the sound layer 10 and by applying build-up welding to it, the recessed cavity 2 revealed to the surface of the cast parts 1 can be repaired without making the internal defect remain. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种修复铸造件的缺陷部分的方法,用于修复在铸造件表面上露出的诸如凹腔的缺陷部分,而不会留下内部缺陷。 解决方案:由于这种修复缺陷部分的方法包括形成具有声音层10的凹部11的第一步骤,其中通过喷射高压气体同时将内部缺陷抑制在内部,同时熔化凹腔2暴露于 铸造件1的表面及其周边,接下来,通过在声音层10的厚度范围内熔化凹部11并通过施加积聚焊接来修复空腔2的第二步骤, 露出到铸造件1表面的凹腔2可以被修复而不会使内部缺陷保留。 版权所有(C)2009,JPO&INPIT

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