公开(公告)号：US4581518A

公开(公告)日：1986-04-08

申请号：US493261

申请日：1983-05-10

申请人： Yohichi Takahashi ,  Hiroyuki Takahashi ,  Yasuaki Sugie ,  Junichiro Morisawa

发明人： Yohichi Takahashi ,  Hiroyuki Takahashi ,  Yasuaki Sugie ,  Junichiro Morisawa

IPC分类号： B23K9/16 ,  B23K9/095 ,  B23K9/10 ,  B23K9/32

CPC分类号： B23K9/325 ,  B23K9/0956 ,  B23K9/10

摘要： A welding apparatus with monitor means including a welding torch having an electrode located in the vicinity of its forward end and supported at its rearward portion by a welding head for rotational movement about its longitudinal axis and back-and-forth reciprocatory movement along the longitudinal axis. The welding torch further includes an electric conductor covered at its outer periphery with an insulator and formed with a gas sump in the vicinity of the electrode. The electric conductor has defined therein a gas supply passageway for supplying gas shield gas, a bore for allowing an image guide and a light guide to extend therethrough, and a bore for allowing a fluid to flow therethrough to cool the electric conductor. The image guide and light guide have their forward ends located in the gas sump, so that they can command a view of outside through guide openings serving concurrently as gas ejecting ports for ejecting the shield gas therethrough. A filter is located at the other end of the image guide, and an industrial television camera and a television receiver are mounted for converting optical images formed on the filter to television pictures to enable monitoring of welding operations to be effected.

摘要翻译： 一种具有监测装置的焊接装置，包括焊炬，其具有位于其前端附近的电极，并且通过焊接头在其后部被支撑，用于围绕其纵向轴线旋转运动，并沿着纵向轴线的往复往复运动 。 焊炬还包括在其外周被绝缘体覆盖的电导体，并且在电极附近形成有气体贮槽。 电导体中限定有用于供应气体保护气体的气体供应通道，用于允许图像引导件和光导通过其延伸的孔，以及用于允许流体流过其中以冷却导电体的孔。 图像引导和导光体的前端位于气体贮槽中，使得它们可以通过同时用作喷射保护气体的气体喷射口的引导开口来指示外部视图。 过滤器位于图像引导件的另一端，并且安装工业电视摄像机和电视接收机，用于将形成在滤波器上的光学图像转换成电视图像，以便能够监视要进行的焊接操作。

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：US4594497A

公开(公告)日：1986-06-10

申请号：US736691

申请日：1985-05-22

申请人： Youichi Takahashi ,  Koji Kashiwakura ,  Junichiro Morisawa ,  Masahiro Kobayashi

发明人： Youichi Takahashi ,  Koji Kashiwakura ,  Junichiro Morisawa ,  Masahiro Kobayashi

IPC分类号： B23K9/12 ,  B23K9/095 ,  B23K9/127 ,  B23K9/10

CPC分类号： B23K9/0956 ,  B23K9/127

摘要： An image processing welding control method comprises detection of isothermal pattern of a weld zone in the welding state through photographing the weld zone by an infrared camera; calculation of the area of the region defined by the isothermal line detected; comparison of the area with a standard area which is obtained in advance; control of welding heat input such that the area will be substantially the same as the standard area whereby a suitable welding heat is input the welding portion; detection of an asymmetric extent of said isothermal pattern; and controlling the torch position such that the asymmetric extent will be within a predetermined value, so that the torch will be strictly aligned with the welding groove center. This method enables two kinds of welding control methods, torch position control and welding heat input control, based on the same image information.

摘要翻译： 图像处理焊接控制方法包括通过红外摄像机拍摄焊接区域来检测处于焊接状态的焊接区域的等温图案; 计算由等温线确定的区域面积; 面积与预先获得的标准面积进行比较; 控制焊接热输入，使得该区域将与标准区域基本相同，由此焊接部分输入合适的焊接热量; 检测所述等温模式的不对称程度; 并且控制割炬位置使得不对称程度将在预定值内，使得割炬将严格地对准焊接槽中心。 该方法基于相同的图像信息，实现了两种焊接控制方式，割炬位置控制和焊接热输入控制。