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1. 发明专利

JP2006007301A Welding apparatus with cooling mechanism 审中-公开
标题翻译：具有冷却机构的焊接设备
公开(公告)号：JP2006007301A
公开(公告)日：2006-01-12
申请号：JP2004190640
申请日：2004-06-29
申请人： Hitachi Eng Co Ltd , Hitachi Ltd , 日立エンジニアリング株式会社 , 株式会社日立製作所
发明人： KAWAKAMI MITSUO , YANAGIDA NOBUYOSHI , HAYASHI SHOJI , SUGANO SATOSHI , ENOMOTO KUNIO , KOIDE HIROO , TSUJIMURA HIROSHI
IPC分类号： B23K37/00 , B23K9/32
摘要： PROBLEM TO BE SOLVED: To provide a welding apparatus having a mechanism to cool a welded zone with cooling water immediately after welding, which can efficiently recover cooling water without dispersing it around and can fit to a complicated surface profile of a material to be welded.
SOLUTION: This welding apparatus comprises a welding torch 1, a spray nozzle 8 to supply water to the welded zone welded by the welding torch 1, and the cooling mechanism 7 with a suction hood 9 containing the spray nozzle 8 inside. In the outer periphery of the suction hood 9, a plurality of gap adjusting devices 20 are arranged which can move following irregularity of the surface of the material to be welded 3.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种焊接设备，其具有在焊接之后立即用冷却水冷却焊接区域的机构，其可以有效地回收冷却水而不将其分散在周围，并且可以适应材料的复杂表面轮廓焊接。该焊接装置包括焊炬1，喷射喷嘴8，用于向由焊炬1焊接的焊接区域供水，冷却机构7具有内部具有喷嘴8的吸气罩9。在吸气罩9的外周设置有多个间隙调整装置20，其能够随着待焊接材料3的表面的不规则移动。（C）2006年，JPO＆NCIPI

2. 发明专利

JP2005126771A Heat treatment method for piping system 有权
标题翻译：管道系统热处理方法
公开(公告)号：JP2005126771A
公开(公告)日：2005-05-19
申请号：JP2003363991
申请日：2003-10-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YANAGIDA NOBUYOSHI , SAITO NOBORU , HAYASHI SHOJI , ENOMOTO KUNIO
IPC分类号： G21D1/00 , C21D9/08 , C21D9/50
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To make maximum relaxing amount to tension residual stress in the inner surface of a piping in the existing piping system constituted of an austenitic stainless steel having ≤0.03% carbon content.
SOLUTION: After assembling the piping system, a cooling material is put in the inner part of the piping constituted of the piping system and the outer surface of the piping is heated by using a high frequency induction heating apparatus, and the heat treatment generating the temperature difference between the inner surface and the outer surface is applied to give the plastic deformation at the tension side in the inner surface of the piping during heating. The relaxation of the tension residual stress is applied by giving the optimum temperature distribution for giving a compression residual stress in the inner surface of the piping, from a stress-strain relation having a temperature dependency of the austenitic stainless steel having low carbon content as the basic material of the piping.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：在由具有≤0.03％碳含量的奥氏体不锈钢构成的现有管道系统中，使管道内表面的最大松弛量达到拉伸残余应力。
解决方案：在组装管道系统之后，将一种冷却材料放入由管道系统构成的管道的内部，并且通过使用高频感应加热装置来加热管道的外表面，并且热处理施加内表面和外表面之间的温差产生加热时管道内表面的张力侧的塑性变形。通过从具有低碳含量的奥氏体不锈钢的温度依赖性的应力 - 应变关系给出最佳的温度分布来给出管道内表面中的压缩残余应力的最佳温度分布，作为管道的基本材料。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2014035174A Heat treatment method of membrane panel for boiler and boiler device performing the heat treatment 有权
标题翻译：用于锅炉和锅炉设备执行热处理的膜板的热处理方法
公开(公告)号：JP2014035174A
公开(公告)日：2014-02-24
申请号：JP2012177974
申请日：2012-08-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YANAGIDA NOBUYOSHI
IPC分类号： F22B37/10 , B23K31/00
CPC分类号： F22B37/107 , F22B37/108
摘要： PROBLEM TO BE SOLVED: To provide a heat treatment method of a membrane panel for a boiler which removes a factor of a tensile remaining stress of a welded part by avoiding heat treatment of the welded part using an electric heater, a burner or the like which requires man hours, and can continuously perform a high-reliability operation of a boiler by suppressing the generation of stress corrosion cracking and the propagation of the stress corrosion cracking on the welded part.SOLUTION: In a heat treatment method of a membrane panel for a boiler in which pipe lines are welded to each other, an ignitable material is disposed on an outer circumferential side of the pipe line including a welded part of the pipe line of the membrane panel for the boiler when stopping an operation of the boiler, high-temperature heat medium is caused to flow through an inner part of the pipe line of the membrane panel for the boiler, the temperature of the pipe line is elevated to an ignition temperature of the ignitable material by circulating high-temperature heat medium to start the combustion of the ignitable material, the welded part of the pipe lines and a heat-affected zone of the welded part are heated by combusting the ignitable material, and the temperature of the pipe line is elevated by circulating the high-temperature heat medium through the inner part of the pipe line to reduce a welding remaining stress generated on the welded part of the pipe lines and the heat-affected zone of the welded part.
摘要翻译：要解决的问题：提供一种用于锅炉的热处理方法，其通过避免使用电加热器，燃烧器等对焊接部件进行热处理来消除焊接部件的拉伸剩余应力的因素，需要工时，并且可以通过抑制应力腐蚀开裂的产生和应力腐蚀开裂在焊接部件上的传播来连续地进行锅炉的高可靠性操作。解决方案：在一种用于锅炉，其中管线彼此焊接，在停止锅炉的运行时，在锅炉的膜板的管线的焊接部分的管线的外周侧上设置可点燃材料，使温度高的热介质流过锅炉的膜片的管线的内部，管线的温度升高到点火温度t 通过循环高温热介质开始可点燃材料的燃烧，可燃材料通过燃烧可点燃的材料来加热管道的焊接部分和焊接部分的热影响区域，并且管道的温度通过使管道内部的循环使高温热介质流通，从而减少在焊接部的焊接部和焊接部的热影响区产生的焊接剩余应力。

4. 发明专利

JP2007083263A Residual stress-improving welding method, and welded structure 有权
标题翻译：残余应力改进焊接方法和焊接结构
公开(公告)号：JP2007083263A
公开(公告)日：2007-04-05
申请号：JP2005273053
申请日：2005-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IMANAGA AKIYOSHI , OBANA TAKESHI , ASHIDA EIJI , LUO XIANGJUN , KOIDE HIROO , HAYASHI SHOJI , SUGANO SATOSHI , SAITO HIDEYO , NEFU AKIRA , YANAGIDA NOBUYOSHI
IPC分类号： B23K31/00 , B23K9/167 , B23K9/23
摘要： PROBLEM TO BE SOLVED: To provide a residual stress-improving welding method which is effective for preventing stress corrosion crack or the like by improving the residual stress exerted in a back bead part on a back side formed by the single side welding of a tubular member or a plate member of a bevel joint, and a part in a vicinity thereof into the compressive stress, and a welded structure by the method. SOLUTION: In the residual stress improving welding method, the residual stress in a back bead part on a back side formed by the single side welding of joint members 1, 2 of a bevel formed by butting a tubular member or a plate member, and a part in the vicinity thereof is improved into the compressive stress. After forming a back bead 15 on the back side of a bevel bottom part in a first pass weld, the lamination welding 41 is performed to the specified lamination bead height Hb within a heat input range Q1 of ≥ 4 kJ/cm and ≤ 12 kJ/cm, and then, the lamination welding 42 is performed from a remaining bevel portion to the final layer of an upper portion of the bevel within the heat input range Q2 of ≥ 2 kJ/cm and ≤ 6 kJ/cm to form a compressive residual stress in the back bead part and a heat-affected zone in the vicinity thereof. Alternatively, the compressive residual stress with slight tensile stress being mixed in a part of the back bead is exerted in the heat-affected zone. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种残留应力改善焊接方法，其通过改善由单侧焊接形成的背面侧的后胎圈部中的残余应力来防止应力腐蚀裂纹等锥形接头的管状构件或板构件，以及其附近的压缩应力的一部分，以及通过该方法的焊接结构。解决方案：在残余应力改善焊接方法中，通过对通过对接管状构件或板构件形成的斜面的接头构件1,2的单侧焊接而形成的背面侧的胎圈部中的残余应力，并且其附近的部分被提高到压缩应力。在第一焊缝中的斜面底部的背侧上形成后胎圈15之后，在≥4kJ/ cm 2的热输入范围Q1和≤12kJ的热输入范围Q1内对层压焊接41进行规定的层叠焊道高度Hb / cm，然后，在≥2kJ/ cm 2且≤6kJ/ cm 2的热输入范围Q2内，从斜面的上部的剩余斜面到最后一层进行层压焊接42，以形成压缩后胎圈部的残留应力和附近的热影响区。或者，在热影响区域中施加具有稍微拉伸应力的压缩残余应力在后部胎圈的一部分中混合。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006152410A Method and device for heat treatment of tube 有权
标题翻译：管加热处理方法及装置
公开(公告)号：JP2006152410A
公开(公告)日：2006-06-15
申请号：JP2004347967
申请日：2004-12-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAITO NOBORU , YANAGIDA NOBUYOSHI , HAYASHI SHOJI , SUGANO SATOSHI , ENOMOTO KUNIO
IPC分类号： C21D9/08 , B23K31/00 , B23K101/06 , C21D1/42 , C21D9/50
CPC分类号： C21D9/50 , C21D1/42 , C21D9/08 , Y02P10/253
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for heat treatment of a tube in which the residual stresses in a weld metal part and a weld heat-affected zone of an inner surface of an existing tube are converted into the compressive stresses, and the compressive stresses are generated in the inner surface of the existing pipe.
SOLUTION: In the method for heat treatment of the pipes to constitute a piping system, coolant is allowed to stay inside the pipe, and the outer surface of the pipe is heated at an arbitrary position. After generating the temperature distribution with less temperature difference in a tubular wall surface of the pipe at the heated portion, coolant is allowed to flow. By converting the residual stresses in the weld metal part and the weld heat-affected zone of the inner surface of the pipe into the compressive stresses, stress corrosion cracks generated from the weld metal part and the weld heat-affected zone can be suppressed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种管的热处理方法和装置，其中现有管的内表面的焊接金属部分和焊接热影响区中的残余应力被转换成在现有管的内表面产生压应力和压应力。解决方案：在用于管道的热处理以构成管道系统的方法中，允许冷却剂保持在管内，并且管的外表面被加热到任意位置。在加热部分的管道的管状壁表面中产生温度差较小的温度分布之后，允许冷却剂流动。通过将焊接金属部件的残余应力和管内表面的焊接热影响区域转化为压缩应力，可以抑制从焊接金属部件和焊接热影响区域产生的应力腐蚀裂纹。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2006136911A Tube welding method and tube welding device 有权
标题翻译：管式焊接方法和管道焊接装置
公开(公告)号：JP2006136911A
公开(公告)日：2006-06-01
申请号：JP2004327317
申请日：2004-11-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YANAGIDA NOBUYOSHI , SAITO NOBORU , HAYASHI SHOJI , SUGANO SATOSHI , ENOMOTO KUNIO , HANEDA MITSUAKI , KOIDE HIROO
IPC分类号： B23K9/028 , B23K9/00 , B23K9/23 , B23K31/00 , B23K101/06
摘要： PROBLEM TO BE SOLVED: To provide a tube welding method and a tube welding device capable of enhancing the corrosion resistance by exerting the compressive residual stress in the axial direction in a weld metal portion on an inner face of a tube in the connection by welding tubes of large tube thickness to each other.
SOLUTION: After root passes of tubes are welded, the surface of the tubes is quenched by spraying cooling water in the stage of high temperature immediately after the molten metal is solidified behind a torch to perform the welding on the outer surface of the tubes while cooling the inner surface by allowing cooling water to flow on the inner surface of the tubes. The compressive stress is generated on the outer surface side of the tubes to suppress generation of shrink-deformation in the circumferential direction of the tubes, and generate the compressive residual stress as the residual stress in the axial direction of the inner surface of the tube.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种管焊接方法和管焊装置，其能够通过在连接中的管的内表面上的焊接金属部分中施加轴向的压缩残余应力来提高耐腐蚀性通过焊接较大管厚度的管彼此。
解决方案：焊管根管通过之后，在熔融金属固化在焊炬后立即在高温阶段喷洒冷却水来淬火管表面，以在焊接的外表面上进行焊接同时通过允许冷却水在管的内表面上流动而冷却内表面。在管的外表面侧产生压缩应力，以抑制管的圆周方向的收缩变形的产生，并且产生作为管的内表面的轴向的残留应力的压缩残余应力。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2004331999A Method and apparatus for heat-treating pipe 审中-公开
公开(公告)号：JP2004331999A
公开(公告)日：2004-11-25
申请号：JP2003125173
申请日：2003-04-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAITO NOBORU , YANAGIDA NOBUYOSHI , SAITO HIDEYO , HAYASHI SHOJI , ENOMOTO KUNIO
IPC分类号： C21D1/18 , C21D9/08
摘要： PROBLEM TO BE SOLVED: To provide a technology for heat-treating a pipe, which inhibits the occurrence of a stress corrosion cracking on both the inner and outer surface sides of the pipe.
SOLUTION: The method for heat-treating a pipe comprises an outer-surface-cooling means for cooling the outer surface of a part to be treated of a pipe 1 which is an object to be treated and a heating means for heating the part to be treated of the pipe 1. The outer-surface-cooling means has a cooling medium duct 5 arranged around the pipe 1 to cause a cooling medium to flow through it and a cooling-medium-supplying section 11 for supplying the cooling medium into the cooling medium duct 5. The heating means has a heating coil 3 which generates an induced current in the pipe 1 and is arranged around the pipe 1 with some distance from the outer surface of the pipe 1 and to which power supply units 7 and 9 are electrically connected. In the heat-treating method, the inside of the pipe 1 is filled with the cooling medium, and the part to be treated of the pipe 1 is heated while the inner and outer sides of the part to be treated being cooled; thus, the temperature difference in the thickness direction is made so that stress about the same as or higher than the tension-side yield stress is caused on the inner and outer sides of the part to be treated of the pipe 1.
COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JP2004323918A Heat-treatment method for improving remaining stress in surface of metal 审中-公开
公开(公告)号：JP2004323918A
公开(公告)日：2004-11-18
申请号：JP2003120862
申请日：2003-04-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUJIMURA HIROSHI , YANAGIDA NOBUYOSHI , ITO MASATO , MIURA YUICHI , NAGAYAMA KO
IPC分类号： C22F1/10 , C21D1/26 , C21D9/50 , C22F1/00
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To reasonably implement dimensional stabilization heat treatment for a metallic structure, which serves as improvement of a remaining tensile stress in the surface of the structure into a compressive stress. SOLUTION: This heat-treatment method comprises heating a welded structure made of an austenitic stainless steel or a nickel-based alloy in such a temperature gradient as not to cause deformation in the welded structure, as shown in a temperature history curve 7 in the dimensional stabilization heat treatment; holding it at 400°C which is a specific temperature necessary for stabilizing the dimension; subsequently, starting cooling of the welded structure in such a temperature gradient as not to cause deformation in the welded structure, as shown in the temperature history curve 7; and in the cooling step, forcibly cooling the surface of the welded structure at 300°C or lower, in which the strength of the base metal of the structure is enhanced, as shown in the temperature history curve 8 in the surface forced-cooling heat treatment, to impart a compressive stress to the surface of the welded structure. COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2004167575A Welding method 审中-公开
公开(公告)号：JP2004167575A
公开(公告)日：2004-06-17
申请号：JP2002337671
申请日：2002-11-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YANAGIDA NOBUYOSHI , ENOMOTO KUNIO , ANZAI HIDEYA , KAWAKAMI MITSUO
IPC分类号： B23K9/23
摘要： PROBLEM TO BE SOLVED: To provide a welding method which can decrease tensile residual stress or welding distortion caused by the welding.
SOLUTION: Among passes 110-112 which constitute an utmost superficial layer of a weld zone 5 consisting of one or more layers, the last pass 112 is formed covering the position of the center line 13 of the weld zone 5 along the welding line, and then the weld zone 5 and the peripheral area of the weld zone 5 is cooled successively after the formation of the last pass 112. Thus, temperature distribution in the weld zone and its peripheral area becomes a symmetrical state on right and left with the center line of the weld zone or its proximity as the peak temperature. Therefore, when the weld zone and its peripheral zone is cooled successively after the formation of the last pass, the difference between pre-cooling temperature and post-cooling temperature in the heat affected zones in the welded material located on both sides of the weld zone is equalized and a necessary temperature difference can be given to both the heat affected zones. Accordingly the tensile residual stress or the welding distortion caused by welding can be reduced.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2014055760A Prevention maintenance repair method for weld of membrane panel for boiler and boiler device with this prevention maintenance repair 有权
标题翻译：用于锅炉和锅炉装置的薄膜焊接预防维修维修方法与此预防性维护维修
公开(公告)号：JP2014055760A
公开(公告)日：2014-03-27
申请号：JP2013165953
申请日：2013-08-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YANAGIDA NOBUYOSHI
IPC分类号： F22B37/10 , B23K9/00 , B23K9/04 , B23K9/235 , B23K31/00
CPC分类号： F22B37/10 , B23P6/04 , F16L55/162 , F16L55/168 , F22B21/34 , F23M5/08 , F28F11/00
摘要： PROBLEM TO BE SOLVED: To provide a prevention maintenance repair method for a strength secured weld of a membrane panel for a boiler by applying compressive residual stress to an inner surface of a peripheral weld part of a pipe of the membrane panel for the boiler forming a water wall of a boiler furnace and restricting occurrence of curved deformation at the membrane panel for the boiler.SOLUTION: This prevention maintenance repair method for a weld of a membrane panel for a boiler is carried out in such a way that when a penetration crack occurs at a pipe 1 of the membrane panel 20 for the boiler, the penetration crack generated at the pipe 1 is cut away to form a repair part groove, this repair part groove is applied with build-up welding to form a repair build-up weld part 8, and then build-up welding is carried out to form an outer surface build-up weld part 10 entirely against each of both surfaces of a front surface and a rear surface of the boiler membrane panel 20 including the weld part.
摘要翻译：要解决的问题：为了提供一种用于锅炉的薄膜面板的强度固定焊接的预防维护修复方法，该方法是将压缩残余应力施加到用于形成锅炉的锅炉的薄板的管的周边焊接部分的内表面锅炉炉壁的水壁，限制锅炉的膜面板发生弯曲变形。解决方案：这种锅炉用薄膜面板的焊接的预防维修方法是在发生穿透裂纹的情况下进行的在用于锅炉的膜面板20的管道1处，在管1处产生的渗透裂缝被切除以形成修复部分凹槽，该修复部分凹槽被施加堆积焊接以形成修复堆焊部分8，然后进行堆积焊接，以形成完全抵抗锅炉膜面板20的前表面和后表面的每个表面的外表面堆积焊接部分10，包括t 他焊接部分。

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