公开(公告)号：US5674419A

公开(公告)日：1997-10-07

申请号：US498485

申请日：1995-07-05

申请人： Hiroo Koide ,  Yasumasa Tamai ,  Junichiro Morisawa ,  Toshimi Matsumoto ,  Keiichi Uraki

发明人： Hiroo Koide ,  Yasumasa Tamai ,  Junichiro Morisawa ,  Toshimi Matsumoto ,  Keiichi Uraki

IPC分类号： G21C19/02 ,  B23K9/00 ,  B23K9/04 ,  B23K31/02

CPC分类号： B23K31/02

摘要： Disclosed is a highly reliable weld repairing method to repair a crack defect in structures and apparatus inside pressure vessels of nuclear reactors, while preventing generation of new crack defects in the structures and apparatus during the repairing. These structures and apparatus are made of any of stainless steel and Ni-base alloys, and are irradiated with high energy corpuscular ray during operating period of the reactor. The repairing method includes the steps of eliminating a region of the structure or the apparatus including a portion having the crack defect, and executing spot welding at a surface of the region continuously or interruptedly in a manner so as to form a first welded layer in a manner that each of the spot welded spots is half-overlapped with adjacent welded spots. Additionally, welding for forming at least a second layer, on the first welded layer, so that the at least a second layer is not deeper than a weld penetration thickness of the first welded layer can be performed.

摘要翻译： 公开了一种高度可靠的焊接修复方法，用于修复核反应堆压力容器内的结构和设备中的裂纹缺陷，同时防止在修复期间在结构和设备中产生新的裂纹缺陷。 这些结构和装置由不锈钢和镍基合金中的任何一种制成，并且在反应器运行期间被照射高能量红外线。 修复方法包括以下步骤：消除结构的区域或包括具有裂纹缺陷的部分的设备，并且以连续或间断的方式在该区域的表面上进行点焊以形成第一焊接层 每个点焊点与相邻焊接点半重叠的方式。 此外，可以进行在第一焊接层上形成至少第二层的至少第二层的焊接，使得至少第二层不比第一焊接层的焊接穿透厚度更深。

公开(公告)号：US5938954A

公开(公告)日：1999-08-17

申请号：US747677

申请日：1996-11-12

申请人： Tsutomu Onuma ,  Toshimi Matsumoto ,  Akira Onuma ,  Mitsuo Nakamura ,  Choichi Asano ,  Yasumasa Tamai ,  Hiroo Koide ,  Masayuki Kurihara ,  Takao Funamoto ,  Fuminori Ishikawa

发明人： Tsutomu Onuma ,  Toshimi Matsumoto ,  Akira Onuma ,  Mitsuo Nakamura ,  Choichi Asano ,  Yasumasa Tamai ,  Hiroo Koide ,  Masayuki Kurihara ,  Takao Funamoto ,  Fuminori Ishikawa

IPC分类号： B23K26/12 ,  B23K26/00

CPC分类号： B23K26/122

摘要： A submerged laser beam irradiation equipment provides a high quality submerged laser beam processing of a submerged workpiece using only a small amount of a gas. The submerged laser beam irradiation equipment has: a focus lens for focusing a laser beam; a mirror tube which houses the lens; a first nozzle operating to cover the front end of the mirror tube in an irradiating direction of the laser beam; a skirt portion provided at the front end of the first nozzle for preventing water intrusion thereinto; and a shutter mechanism operable to open and close and provided between said skirt portion and said mirror tube for preventing water intrusion into said mirror tube.

摘要翻译： 浸没式激光束照射设备仅使用少量气体提供浸没式工件的高质量浸没式激光束处理。 浸没式激光束照射设备具有：聚焦激光束的聚焦透镜; 容纳镜头的镜管; 第一喷嘴，其操作以沿着激光束的照射方向覆盖镜管的前端; 裙部，设置在第一喷嘴的前端，用于防止水侵入其中; 以及可操作以打开和关闭并设置在所述裙部和所述镜管之间的挡板机构，用于防止水侵入所述镜管。

公开(公告)号：US20080206586A1

公开(公告)日：2008-08-28

申请号：US12016408

申请日：2008-01-18

申请人： Shoji Imanaga ,  Eiji Ashida ,  Takeshi Obana ,  Shoh Tarasawa ,  Hiroo Koide ,  Toshimitsu Mori

发明人： Shoji Imanaga ,  Eiji Ashida ,  Takeshi Obana ,  Shoh Tarasawa ,  Hiroo Koide ,  Toshimitsu Mori

IPC分类号： B32B15/01 ,  B23K9/167 ,  B23K9/00

CPC分类号： B23K9/0256 ,  B23K9/167 ,  B23K33/00 ,  Y10T428/12375

摘要： An upper plate is arranged on the top surface of a lower vertical plate to form a T-type joint, and a penetration promoter is applied on the surface of the upper plate of the T-type joint. Subsequently, when performing non-consumable electrode arc welding, a penetration width w of a molten pool on the side of the vertical plate after penetrating through the back side of the vertical plate is formed equal to or greater than the vertical plate thickness if a lower vertical plate thickness is the same thickness as an upper plate thickness or thinner than the upper plate thickness, and the penetration width of the molten pool is formed equal to or greater than the upper plate thickness if the lower vertical plate thickness is thicker than the upper plate thickness, thereby forming a penetration shape having a desired welding metal part.

摘要翻译： 在下垂直板的上表面上设置上板，形成T型接头，在T型接头的上板的表面上涂敷穿透促进剂。 随后，当执行非消耗性电极电弧焊时，在穿过垂直板的背面之后，垂直板侧的熔池的穿透宽度w形成为等于或大于垂直板厚度，如果较低 垂直板厚度与上板厚度相同或比上板厚度薄，如果下垂直板厚度大于上板厚度，则熔池的穿透宽度形成为等于或大于上板厚度 从而形成具有期望的焊接金属部件的穿透形状。

公开(公告)号：US20060201915A1

公开(公告)日：2006-09-14

申请号：US11354910

申请日：2006-02-16

申请人： Takeshi Obana ,  Shoji Imanaga ,  Eiji Ashida ,  Xiangjun Luo ,  Hiroo Koide ,  Mitsuaki Haneda

发明人： Takeshi Obana ,  Shoji Imanaga ,  Eiji Ashida ,  Xiangjun Luo ,  Hiroo Koide ,  Mitsuaki Haneda

IPC分类号： B23K9/04

CPC分类号： B23K9/0213 ,  B23K2101/06 ,  B23K2103/05

摘要： The present invention has an object to reduce residual stress in a tensile direction of a weld on the inner side in contact with reactor water of austenitic stainless steel piping, and to change the residual stress into compressive stress, to reduce stress corrosive cracking. The present invention provides a welding process for stainless steel piping of laminating two types of welding wire made of different materials in a groove of austenitic stainless steel piping, including at least one of a first layer penetration welding step of performing a predetermined back bead width on the back side of the groove bottom and a tack welding step, a first lamination welding step of lamination welding of austenitic stainless steel wire from the bottom to the top of the groove, and a second lamination welding step of lamination welding of nickel-base alloy wire to a final layer at the top of the groove.

摘要翻译： 本发明的目的是减少与奥氏体不锈钢管道的反应器水接触的内侧的焊缝的拉伸方向的残余应力，并且将残余应力变为压缩应力，以减少应力腐蚀开裂。 本发明提供一种用于在奥氏体不锈钢管道的槽中层叠由不同材料制成的两种类型的焊丝的不锈钢管道的焊接工艺，其包括以下步骤中的至少一个：执行预定的后焊道宽度的第一层穿透焊接步骤 凹槽底部的背面和定位焊接步骤，从底部到顶部的奥氏体不锈钢丝层压焊接的第一层压焊接步骤，以及镍基合金的层压焊接的第二层压焊接步骤 导线到槽顶部的最后层。