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公开(公告)号：US4298783A
公开(公告)日：1981-11-03
申请号：US77208
申请日：1979-09-20
CPC分类号： B23K9/296
摘要： A method of applying a gas shielded tungsten arc welding process in a deep, narrow groove joint wherein the shield gas is directed to the weld puddle through an elongated gas nozzle 14 which surrounds a substantial length of the welding electrode and is sized to extend into the groove. The improvement including incrementally increasing the width (20) of the nozzle to correspond to increases in the width of the groove at preselected increases in the width of the groove as the nozzle is withdrawn from the groove during successive weld passes. The preselected elevations and nozzle widths are chosen so that the desired gas shield area does not substantially exceed 1.25 times the nozzle width.
摘要翻译： 一种将气体保护钨电弧焊接工艺应用于深而窄的沟槽接合中的方法，其中屏蔽气体通过细长的气体喷嘴14引导到焊接熔池，细长的气体喷嘴14包围焊接电极的大部分长度， 槽。 改进包括逐渐增加喷嘴的宽度（20）以对应于预定的槽的宽度的增加，当在连续的焊接通过期间喷嘴从槽中取出时，槽的宽度增加。 选择预选的海拔和喷嘴宽度，使得所需的气体屏蔽区域基本上不超过喷嘴宽度的1.25倍。
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公开(公告)号：US4300034A
公开(公告)日：1981-11-10
申请号：US77210
申请日：1979-09-20
CPC分类号： B23K9/296
摘要： A gas tungsten arc welding torch having an elongated gas nozzle (18) with an oblong cross section designed for deep groove, narrow gap welding. The nozzle is rotatably coupled to and communicates with a gas port within the main torch body (16) and defines a gas passage along the length of the welding electrode (10), which extends through the longitudinal axis of the nozzle. The nozzle (18) includes a detachable end section (42) which captures and supports a replaceable gas lens (30) disposed within the gas passage of the nozzle within 7/8 to 1 inch from the nozzle orifice (40), and traverse to the direction of gas flow. The electrode (10) is formed from a solid tungsten rod center (12) and a concentric outer sleeve (14) substantially lower in electrical resistivity than the tungsten rod, which is adhesively and cohesively bonded to the tungsten. The outer sleeve extends from the point of electrical connection (32) within the main torch body (16) to a point on the tungsten electrode downstream of the gas lens. The nozzle is sealably mounted (38) to the main torch body and readily detachable for easy replacement.
摘要翻译： 一种具有细长气体喷嘴（18）的气体钨弧焊枪，其具有设计用于深沟槽，窄间隙焊接的长方形横截面。 喷嘴可旋转地联接到主炬本体（16）内的气体端口并且与主炬本体（16）内的气体端口连通，并且限定沿着焊接电极（10）的长度的气体通道，其延伸穿过喷嘴的纵向轴线。 喷嘴（18）包括一个可拆卸的端部（42），该可拆卸的端部（42）捕捉和支撑设置在喷嘴的气体通道内的可更换的气体透镜（30），该喷嘴在喷嘴孔（40）的7/8至1英寸内，并且横越 气流方向。 电极（10）由固体钨棒中心（12）和同心外套（14）形成，其电阻率基本上低于与钨棒粘结和内聚到钨上的钨棒。 外套筒从主火炬主体（16）内的电连接点（32）延伸到气体透镜下游的钨电极上的点。 喷嘴可密封地安装（38）到主火炬主体，并且易于拆卸以便于更换。
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3.发明授权
公开(公告)号：US4319113A
公开(公告)日：1982-03-09
申请号：US148449
申请日：1980-05-09
CPC分类号： B23K9/0288 , F28F9/18
摘要： A welding torch is rotatably mounted in a carriage. The carriage and welding torch are driven by motors and driveshafts mounted on a base to provide a light carriage which can be rapidly accelerated as the torch moves from tube to tube when forming a continuous weld encompassing the juncture of a plurality of tubes.
摘要翻译： 焊枪可旋转地安装在托架中。 托架和焊枪由安装在基座上的电动机和驱动轴驱动，以提供一个轻型滑架，当形成包围多个管子的连接点的连续焊接时，焊枪可以快速加速。
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公开(公告)号：US4343983A
公开(公告)日：1982-08-10
申请号：US77209
申请日：1979-09-20
CPC分类号： B23K35/0205
摘要： An improved tungsten inert gas-shielded non-consumable composite welding electrode having a solid tungsten rod center (12) and a concentric outer sleeve (14) substantially lower in electrical resistivity than the tungsten rod, bonded adhesively and cohesively to the tungsten by flame spraying so that the surface irregularities of the mating surface areas of the tungsten and outer sleeve mechanically interlock. The improvement is provided by coating the outer sleeve onto the tungsten center and adhesively and cohesively bonding the interface of the surface area of contact to maintain a minimum resistance electric coupling at welding operating temperatures.
摘要翻译： 一种改进的钨惰性气体保护不可消耗复合焊接电极，其具有实质钨棒中心（12）和同心外套筒（14），其电阻率比钨棒基本上低，通过火焰喷涂粘结并粘结到钨上 使得钨和外套管的配合表面区域的表面不规则机械地互锁。 通过将外套筒涂覆到钨中心并且粘合地并且粘合地粘接接触表面区域的界面以在焊接操作温度下保持最小电阻电耦合来提供改进。
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公开(公告)号：US4336440A
公开(公告)日：1982-06-22
申请号：US54517
申请日：1979-07-03
CPC分类号： B23K9/127
摘要： Apparatus for tracking a welding electrode (22) within a weld groove (12). As the welding arc struck between the electrode (22) and the workpiece (16) is oscillated laterally (14) within the groove means (28 and 30) are provided for supplying an indication of both the voltage drop between the electrode and the side wall of the groove as the arc approaches the side wall, and the width of the excursion of the arc from the center of oscillation to the point where the voltage is measured. The center of oscillation is then adjusted as a function of the measured width and voltage.
摘要翻译： 用于跟踪焊接槽（12）内的焊接电极（22）的装置。 当焊接在电极（22）和工件（16）之间的焊接电弧在槽装置（28和30）内侧向振荡（14）时，用于提供电极和侧壁之间的电压降的指示 当电弧接近侧壁时，凹槽的宽度以及从振荡中心到测量电压的点的电弧偏移的宽度。 然后根据测量的宽度和电压调整振荡中心。
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6.发明授权Welding apparatus and method for buttering an end face surrounding a circular opening in a work-piece 失效用于对围绕工件的圆形开口的端面进行毛刺的焊接装置和方法
公开(公告)号：US5399836A
公开(公告)日：1995-03-21
申请号：US171507
申请日：1993-12-22
CPC分类号： B23K9/046
摘要： An end face of a work-piece having a circular opening is welded upon by apparatus which includes a stationary post mounted by a mounting assembly to the work-piece with its longitudinal axis coincident with the axis of the opening. A rotating assembly includes a sleeve rotatably mounted on the post and supporting a slide extending laterally from the sleeve. A weld head is supported by a carriage which reciprocates along the slide and has a weld electrode extending toward the end face of the work-piece. Rotation of the sleeve and movement of the carriage are coordinated so that a spiral weld pattern with overlapping turns is laid down on the end face. Cooling water and cover gas, as well as electrical power and control signals for GTAW-HW welding are delivered to the rotating assembly through rotating connections on the post.
摘要翻译： 具有圆形开口的工件的端面通过装置焊接在一起，该装置包括通过安装组件安装到工件上的固定柱，其纵向轴线与开口的轴线重合。 旋转组件包括可旋转地安装在柱上并支撑从套筒横向延伸的滑块的套筒。 焊头由沿着滑块往复移动并具有朝向工件的端面延伸的焊接电极的滑架支撑。 协调套筒的旋转和滑架的运动，使得在端面上放置具有重叠匝的螺旋焊接图案。 冷却水和覆盖气体，以及GTAW-HW焊接的电力和控制信号通过柱上的旋转连接传送到旋转组件。
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7.发明授权
公开(公告)号：US5477023A
公开(公告)日：1995-12-19
申请号：US53119
申请日：1993-04-23
申请人： Urban A. Schneider , John P. Mortara , Alfred C. Owens , Douglas L. Mann , Micki M. Baumert , Robert D. Sigman
发明人： Urban A. Schneider , John P. Mortara , Alfred C. Owens , Douglas L. Mann , Micki M. Baumert , Robert D. Sigman
CPC分类号： G06K1/126 , B23K26/10 , B23K26/127 , B23K26/1462 , G21C17/00 , B41M5/24 , G21Y2002/40 , Y02E30/39
摘要： System and method for engraving an image on a workpiece, such as a nuclear steam generator tubesheet. The system includes a laser assembly for generating a pulsed laser beam to engrave the image adjacent a target position on the workpiece. A positioning mechanism is connected to the laser assembly for positioning the laser assembly with reference to the target position. A controller is electrically connected to the positioning mechanism for controlling the positioning mechanism in order to controllably position the laser assembly at the target position and for verifying the image engraved at the target position. A computer is electrically connected to the controller for receiving the verified image. The computer is also electrically connected to the laser assembly for operating the laser assembly so that the laser beam emitted thereby engraves the image on the tubesheet at the target position.
摘要翻译： 用于在工件上雕刻图像的系统和方法，例如核蒸汽发生器管板。 该系统包括用于产生脉冲激光束以在工件上邻近目标位置雕刻图像的激光组件。 定位机构连接到激光组件，用于相对于目标位置定位激光组件。 控制器电连接到定位机构，用于控制定位机构，以便将激光组件可控地定位在目标位置，并用于验证雕刻在目标位置的图像。 计算机电连接到控制器以接收经验证的图像。 计算机还电连接到用于操作激光组件的激光组件，使得所发射的激光束在目标位置处雕刻在管板上的图像。
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公开(公告)号：US4095077A
公开(公告)日：1978-06-13
申请号：US699769
申请日：1976-06-25
CPC分类号： B23K9/124 , B23K9/10 , B23K9/1093 , B23K9/12
摘要： A method and apparatus for preheating filler material to a temperature approaching its melting point prior to deposit within a weld zone. The weld zone and deposited filler material are then heated sufficiently to form an integral weldment. The power imparted to preheat the filler material is automatically, programmably, controlled as a predetermined function of the filler material deposition rate to obtain smooth melting of the filler material within the weld zone at any given filler material feed speed.In an application to welding an extended seam along a workpiece wherein the weld zone is moved along the seam, the power employed to heat the weld zone and the filler material feed speed are additionally controlled as a function of the speed of movement of the weld zone along the seam.In an application to welding generally cylindrical members along a designated circumferential weld seam, the method and apparatus of this invention simultaneously produce substantially identical welds at a plurality of spaced weld zones along the weld seam symmetrically situated about an axis bisecting the axis of revolution of the member by automatically controlling and establishing a substantially identical ratio of heat input to volume of deposited metal along the weld seam at each of the weld zones at any given point in time. Identical welds are achieved by automatically, programmably, controlling the power employed to preheat the filler material at each welding location as a function of the corresponding filler material feed speed and the respective feed speed and power imparted to each weld zone as a programmed function of the speed of the weld zone along the seam and the respective feed speed and welding power corresponding to each of the other weld zones along the seam.
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