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1.发明申请METHOD OF MANUFACTURING A WELD-FREE APPARATUS FOR CONNECTION OF DISSIMILAR METALS USING FUNCTIONALLY GRADED COMPOSITIONALLY CONTROL POWDER METALLURGY AND HOT ISOSTATIC PROCESSING METHODS 审中-公开使用功能分级的组合物控制粉末冶金和热等静压处理方法制造用于连接非金属材料的无焊接装置的方法公开(公告)号：US20130121868A1
公开(公告)日：2013-05-16
申请号：US13463428
申请日：2012-05-03
CPC分类号： B22F7/02 , B22D23/06 , B22F3/15 , B22F2999/00 , B22F5/106 , B22F2207/01 , C22C33/0285
摘要： A method of manufacturing a weld-free apparatus for use in the connection of dissimilar metals includes the steps of providing a mold designed to replicate a reverse of the apparatus, introducing a low alloy, ferritic steel composition atomized powder into a first portion of the mold, introducing a series of atomized powders incrementally into a second portion of the mold to form a transition region between the ferritic steel composition and an austenitic stainless steel composition, and introducing an austenitic stainless steel composition atomized powder into a third portion of the mold. The method further includes the step of consolidating and melting the atomized powders in a high temperature, high pressure inert gas atmosphere to form the apparatus.
摘要翻译： 一种制造用于不同金属连接的无焊接装置的方法包括以下步骤：提供设计用于复制设备相反的模具，将低合金铁素体组合物雾化粉末引入模具的第一部分 将一系列雾化粉末逐渐引入模具的第二部分，以形成铁素体钢组合物和奥氏体不锈钢组合物之间的过渡区域，并将奥氏体不锈钢组合物雾化粉末引入模具的第三部分。 该方法还包括在高温高压惰性气体气氛中固化和熔化雾化粉末以形成该装置的步骤。
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2.发明申请METHOD OF USING POWDER METALLURGY FABRICATION FOR MANUFACTURING INTEGRAL HEADER AND TUBE REPLACEMENT SECTIONS 审中-公开使用粉末冶金制造制造整体头和管更换部分的方法公开(公告)号：US20120301344A1
公开(公告)日：2012-11-29
申请号：US13463467
申请日：2012-05-03
摘要： A method of manufacturing integral head and tube replacement sections includes the steps of providing a reverse mold of a head and tube replacement section, providing an atomized steel powder, and filling the reverse mold with the atomized steel powder. The method further includes the step of inserting the mold into a hot isostatic processing (HIP) furnace to consolidate and sinter the powder into the shape of the head and tube replacement section.
摘要翻译： 一种制造整体头管更换部分的方法包括提供头管更换部分的反模具，提供雾化钢粉末，并用雾化钢粉填充反模具的步骤。 该方法还包括将模具插入热等静压处理（HIP）炉中以将粉末固结和烧结成头管更换部分的形状的步骤。
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3.发明申请FUNCTIONALLY GRADED COMPOSITIONAL CONTROL METHODS TO ELIMINATE DISSIMILAR METAL WELDS (DMWs) DURING MANUFACTURE OF INTEGRAL HEADERS 审中-公开功能分级组合控制方法在整体头部制造过程中消除异常金属丝（DMWs）公开(公告)号：US20120299288A1
公开(公告)日：2012-11-29
申请号：US13463587
申请日：2012-05-03
申请人： David W. Gandy , John Shingledecker
发明人： David W. Gandy , John Shingledecker
CPC分类号： B22F3/15 , B22F5/106 , B22F7/06 , B22F9/082 , B22F2999/00 , F22B37/22 , C22C33/0285 , B22F2207/01
摘要： A method of manufacturing a header assembly having a header section and a tube section includes the steps of providing a reverse mold of the header assembly, forming the header section by filling a header section of the reverse mold with an atomized low alloy steel powder, and forming the tube section. The tube section is formed by filling a first portion of a tube section with an atomized low alloy steel powder, forming a transition region by filling a second portion of the tube section with a series of atomized steel powders incrementally from a low alloy steel to an austenitic stainless steel, and filling a third portion of the tube section with an atomized austenitic stainless steel powder. The method further includes the step of consolidating and melting the atomized powders in a high temperature, high pressure atmosphere.
摘要翻译： 制造具有集管部分和管部分的集管组件的方法包括以下步骤：提供集管组件的反模具，通过用雾化的低合金钢粉末填充反模具的集管部分形成集管部分;以及 形成管部。 通过用雾化的低合金钢粉末填充管部分的第一部分来形成管部分，通过将一系列雾化钢粉末从低合金钢逐渐填充到管状部分的第二部分而形成过渡区域 奥氏体不锈钢，并用雾化奥氏体不锈钢粉末填充管部分的第三部分。 该方法还包括在高温高压气氛中固化和熔化雾化粉末的步骤。
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公开(公告)号：US6145194A
公开(公告)日：2000-11-14
申请号：US321703
申请日：1999-05-28
CPC分类号： B23P6/005 , C21D9/50 , F01D5/005 , Y10T29/49318 , Y10T29/49336
摘要： A method for repairing a shrink-fitted turbine disc without removing the disc from the shaft. The method is composed of two basic steps: (1) depositing one or more weld layers in a vicinity of a defective region of the disc using a temperbead welding process and (2) heat treating the disc using an induction heating process. In a first embodiment of the method, the heat treating step includes heating a heat-affected zone of the disc in a vicinity of the one or more weld layers to a temperature T.sub.h, heating a rim region of the disc to a temperature T.sub.r and heating a bore region of the disc to a temperature T.sub.b, where T.sub.h, T.sub.r >T.sub.b. In a second embodiment of the method, the heat treating step includes heating a region of the disc in a vicinity of the one or more weld layers using the induction heating process and concurrently cooling a bore region of the disc. In a third embodiment of the method, the heat treating step includes heating at least a portion of the disc using the induction heating process and concurrently heating the shaft to maintain a predetermined temperature differential between the bore region of the disc and the shaft. In a fourth embodiment of the method, the heat treating step includes heating at least a portion of the disc using the induction heating process and concurrently heating the shaft to maintain a uniform temperature between the bore region of the disc and the shaft.
摘要翻译： 一种用于修复收缩式涡轮盘而不从轴移除盘的方法。 该方法由两个基本步骤组成：（1）使用调温焊接工艺在盘的缺陷区域附近沉积一个或多个焊接层，以及（2）使用感应加热工艺对所述盘进行热处理。 在该方法的第一实施例中，热处理步骤包括将一个或多个焊接层附近的盘的热影响区域加热到温度Th，将盘的边缘区域加热到温度Tr并加热 盘的钻孔区域到达Tb，其中Th，Tr> Tb。 在该方法的第二实施例中，热处理步骤包括使用感应加热过程在一个或多个焊接层附近加热盘的区域，同时冷却盘的孔区域。 在该方法的第三实施例中，热处理步骤包括使用感应加热过程加热盘的至少一部分，同时加热轴以保持盘的孔区域和轴之间的预定温差。 在该方法的第四实施例中，热处理步骤包括使用感应加热过程加热盘的至少一部分，同时加热轴以在盘的孔区域和轴之间保持均匀的温度。
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