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公开(公告)号：US5719369A
公开(公告)日：1998-02-17
申请号：US629290
申请日：1996-04-08
CPC分类号： B23K10/02 , B23K9/0061 , C21D1/00 , C21D9/50
摘要： Stress corrosion cracking damage to stainless steels and nickel base superalloys is repaired by underwater plasma transferred arc welding which under conditions which reduce residual tensile stresses in the weld and adjacent portions of the repaired structure.
摘要翻译： 在不锈钢和镍基超级合金的应力腐蚀开裂损坏下，通过水下等离子体转移电弧焊修复，在焊接和修复结构的相邻部分减少残余拉伸应力的条件下。
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2.发明授权Method for developing residual compressive stress in stainless steel and nickel base superalloys 失效在不锈钢和镍基超级合金中开发残余压应力的方法
公开(公告)号：US5710405A
公开(公告)日：1998-01-20
申请号：US629669
申请日：1996-04-09
CPC分类号： C21D1/00 , B23K10/02 , B23K9/0061 , C21D9/50
摘要： Compressive residual stresses can be developed by underwater plasma transferred arc welding. The development of these compressive stresses act to prevent hot cracking and He embrittlement that can develop during welding or stress corrosion cracking that can develop subsequent to the welding operation.
摘要翻译： 压电残余应力可以通过水下等离子体转移电弧焊开发。 这些压缩应力的发展用于防止在焊接过程中可能发生的热裂纹和He脆化，或者在焊接操作之后可以发展的应力腐蚀开裂。
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公开(公告)号：US5705786A
公开(公告)日：1998-01-06
申请号：US581386
申请日：1995-12-29
CPC分类号： B23K9/0061
摘要： Persistent compressive stresses sufficient to suppress hot cracking, reheat cracking and stress corrosion cracking are developed in welds containing alloys of plural materials by quenching of the weld after onset of solidification but while the weld remains soft or "mushy" at a temperature above the melting point of eutectic alloys which may form. Control of the time of quenching is preferably established during submerged welding by a cup-shaped exclusion fitting which is sized relative to the dimensions of a molten weld pool and the speed of travel of a welding heat source such as a plasma transfer arc torch. The cup-shaped exclusion fitting provides improved protection of the weld and heat source with inert gas supplied thereto while also permitting submerged welding at higher hydrostatic pressures than has heretofore been possible. An improved apparatus for transport of powdered welding materials provides for bleeding off of a portion of a flow of transport gas used to transport the powdered materials and can thus provide a reliable supply of such materials over increased distances and against increased gas pressures without compromising the welding heat source or the quality of the weld.
摘要翻译： 在含有多种材料的合金的焊缝中，通过在凝固开始之后淬火，但焊接在高于熔点的温度下保持柔软或“糊状”，则开发了足以抑制热裂纹，再热裂纹和应力腐蚀开裂的持续压缩应力 的共晶合金。 淬火时间的控制优选通过杯形排除配件在浸没焊接期间建立，杯形排除配件的尺寸相对于熔融焊池的尺寸和焊接热源如等离子体转移电弧焊炬的行进速度。 杯形排除配件提供了对供应的惰性气体的焊接和热源的改进的保护，同时还允许在比迄今为止可能的更高的静水压力下进行浸没式焊接。 用于输送粉末焊接材料的改进装置提供用于输送粉末材料的输送气体流的一部分的渗出，并且因此能够在不损害焊接的情况下提供这种材料在增加的距离和不增加气体压力的可靠供应 热源或焊接质量。
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公开(公告)号：US06963044B2
公开(公告)日：2005-11-08
申请号：US10682228
申请日：2003-10-08
IPC分类号： B05B15/04 , B05B7/22 , B05D1/10 , B23K9/04 , B23K10/00 , B23K10/02 , C23C4/02 , C23C4/08 , C23C4/12 , C23C6/00 , C23C26/02 , F01D5/28 , H05H1/42
CPC分类号： B23K10/00 , B23K9/04 , B23K9/044 , B23K10/027 , B23K2101/001 , C23C4/02 , C23C26/02 , F01D5/288 , Y02T50/67
摘要： A local environmental cell for a welding spray gun includes an annular ring having a top surface and a bottom surface, wherein the annular ring is adapted for attachment to an outer perimeter of the spray gun; and a plurality of fluid passageways radially disposed about the annular ring having a plurality of openings in the bottom surface of the ring in fluid communication with a vacuum source for providing a vacuum thereto. The use of the local environmental cell permits deposition of local bond coats as well as minimizes the number of steps associated with welding repair processes. For example, the use of the local environmental cell permits welding and formation of a low oxide bond coat during the welding process, thereby eliminating the need for placing the substrate subsequent to a welding process in a separate spray cell to deposit the bond coating.
摘要翻译： 用于焊接喷枪的局部环境池包括具有顶表面和底表面的环形环，其中环形环适于附接到喷枪的外周边; 以及围绕所述环形环径向设置的多个流体通道，所述环形环在所述环的底表面中具有与真空源流体连通的多个开口，用于向其提供真空。 使用局部环境细胞允许沉积局部粘合涂层，并且最小化与焊接修复过程相关的步骤数量。 例如，使用局部环境细胞允许在焊接过程中焊接和形成低氧化物接合涂层，从而消除了在焊接过程之后将基底放置在单独的喷雾池中以沉积粘结涂层的需要。
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公开(公告)号：US06506995B1
公开(公告)日：2003-01-14
申请号：US09681892
申请日：2001-06-21
IPC分类号： B23K900
CPC分类号： B23K9/0061 , B23K35/383
摘要： A shroud for a welding torch includes a hydrophilic skirt supported by a frame. The skirt is soft and pliable when wet and is self protected from the heat of welding by the water absorbed therein. The frame supports the skirt around the weld site and permits a good seal with the workpiece for excluding water during the welding process.
摘要翻译： 用于焊枪的护罩包括由框架支撑的亲水裙部。 裙子在湿润时柔软柔软，并且被吸收在其中的水自身防止焊接热。 框架支撑围绕焊接部位的裙部，并允许在焊接过程中与工件的良好密封以排除水。
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公开(公告)号：US5750954A
公开(公告)日：1998-05-12
申请号：US724592
申请日：1996-09-30
CPC分类号： B23K9/0061
摘要： A water exclusion device for underwater arc welding comprises a chamber having flexible gas permeable surface contact member at the lower end. A wire mesh material is the preferred gas permeable material.
摘要翻译： 用于水下电弧焊的排水装置包括在下端具有柔性气体可透过表面接触构件的室。 金属丝网材料是优选的透气材料。
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公开(公告)号：US06286368B1
公开(公告)日：2001-09-11
申请号：US09663636
申请日：2000-09-18
IPC分类号： G01L910
CPC分类号： B23K3/0669 , B23K3/0684 , G01N13/02 , G01N2013/0225 , G01N2013/0233
摘要： A wetting balance includes a load cell for suspending a specimen above a crucible containing a molten braze pool. A lift supports the crucible for vertical lifting thereof to effect an immersion cycle of the specimen in the pool. A controller operates the lift and determines first contact with the pool by measuring force changes thereat and produces a measured force log during the immersion cycle. In operation, the lift is operated for a predetermined time following first contact for immersing the specimen to a predetermined depth in the pool.
摘要翻译： 润湿平衡包括用于将样品悬浮在含有熔融钎焊池的坩埚上方的称重传感器。 升降机支撑坩埚以垂直提升坩埚以使试样在池中浸没。 控制器操作升降机，并通过测量其中的力变化来确定与水池的第一次接触，并在浸入循环期间产生测量的力记录。 在操作中，电梯在第一次接触之后运行预定时间，以将样本浸入池中的预定深度。
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公开(公告)号：US5861559A
公开(公告)日：1999-01-19
申请号：US953457
申请日：1997-10-17
CPC分类号： G01N3/20 , G01N2203/0066 , G01N2203/024
摘要： A double cantilever beam (DCB) assembly is disclosed, comprising a fracture specimen having a notch which defines first and second spaced, substantially parallel, outwardly extending beams, terminating at a closed end where crack growth occurs and extending to an open end. The beams are connected to each other along at least a portion of a facing surface of each beam by two, substantially parallel ligaments, spaced from each other on the facing surfaces of the beams. Another disclosed embodiment is a corrosive environment measuring apparatus, comprising a double cantilever beam assembly disposed in an aqueous portion of a reactor vessel, and including the features described above. The reactor vessel is often a constituent of a nuclear reactor, and the DCB assembly is often disposed in a tube which is selectively lowered into the aqueous portion of the reactor vessel. The tube is usually a local power range monitor tube.
摘要翻译： 公开了一种双悬臂梁（DCB）组件，其包括具有凹口的断裂试样，所述切口限定第一和第二间隔开的基本上平行的向外延伸的梁，终止于发生裂纹扩展并延伸到开口端的封闭端。 梁沿着梁的面对表面的至少一部分彼此连接，两个基本平行的韧带在梁的相对表面上彼此间隔开。 另一个公开的实施例是一种腐蚀性环境测量装置，包括设置在反应堆容器的水性部分中的双悬臂梁组件，并且包括上述特征。 反应器容器通常是核反应堆的组成部分，并且DCB组件通常设置在选择性地下降到反应器容器的水性部分中的管中。 管通常是局部功率范围监视器管。
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