Filament design, method, and support structure
    102.
    发明授权
    Filament design, method, and support structure 失效
    灯丝设计,方法和支撑结构

    公开(公告)号:US06464551B1

    公开(公告)日:2002-10-15

    申请号:US09583404

    申请日:2000-05-31

    IPC分类号: H01J904

    摘要: A filament comprises a generally thin metal component, such as a sheet, ribbon, or foil. The filament comprises at least one emitter, at least one current-condensing structure and a tab on each end of the at least one emitter. Each tab is connectable to a support system, comprising for example a lead and attachment post. When a current is passed through the filament, the current-condensing structure establishes current flow through the filament resulting in a desired temperature distribution across the emitter, for example a substantially uniform temperature distribution. A predictive tool for determining a geometry of a filament to provide a desired temperature distribution is set forth. The filament may be curved, and methods and systems for providing a curved filament are also provided. Attachment systems are further disclosed for attaching an emitter to a support structure.

    摘要翻译: 长丝包括通常薄的金属部件,例如片,带或箔。 灯丝包括至少一个发射器,至少一个电流冷凝结构和至少一个发射器的每个端部上的突出部。 每个标签可连接到支撑系统,包括例如引线和附接柱。 当电流通过灯丝时,电流冷凝结构建立通过灯丝的电流,导致跨过发射器的所需温度分布,例如基本均匀的温度分布。 阐述了用于确定细丝几何形状以提供所需温度分布的预测工具。 丝可以是弯曲的,并且还提供了用于提供弯曲细丝的方法和系统。 进一步公开了用于将发射器附接到支撑结构的附接系统。

    Titanium processing methods for ultrasonic noise reduction
    103.
    发明授权
    Titanium processing methods for ultrasonic noise reduction 有权
    钛超声波降噪处理方法

    公开(公告)号:US06387197B1

    公开(公告)日:2002-05-14

    申请号:US09481109

    申请日:2000-01-11

    IPC分类号: C22F118

    CPC分类号: C22F1/183

    摘要: A method is set forth for processing titanium and titanium alloys into titanium articles, in which the titanium exhibits enhanced ultrasonic inspection results for determining its acceptability in microstructurally sensitive titanium applications. The method for processing titanium comprises providing titanium at a temperature above its &bgr;-transus temperature; quenching the titanium from a temperature above the &bgr;-transus temperature, the step of quenching titanium forming an &agr;-plate microstructure in the titanium; and deforming the quenched titanium into a titanium article, the step of deforming the quenched titanium transforming the &agr;-plate microstructure into discontinuous &agr; particles without crystallization textures. The discontinuous-randomly textured &agr; particles lead to a reduction in ultrasonic noise during ultrasonic inspection.

    摘要翻译: 提出了将钛和钛合金加工成钛制品的方法,其中钛显示出增强的超声检查结果,用于确定其在显微结构敏感的钛应用中的可接受性。 处理钛的方法包括在高于其β-转变温度的温度下提供钛; 从高于β转子温度的温度淬火钛,在钛中淬火形成α板微结构的钛的步骤; 并将淬火的钛变形成钛制品,使淬火的钛变形将α板微结构转变为不连续的α颗粒而没有结晶织构的步骤。 不连续随机变形的α粒子导致超声波检测中超声波噪声的降低。

    Refining and analysis of material using horizontal cold-crucible induction levitation melting
    104.
    发明授权
    Refining and analysis of material using horizontal cold-crucible induction levitation melting 失效
    使用水平冷坩埚诱导悬浮熔化的材料的精炼和分析

    公开(公告)号:US06210478B1

    公开(公告)日:2001-04-03

    申请号:US09346133

    申请日:1999-07-09

    IPC分类号: C30B1322

    CPC分类号: C30B13/30 C30B13/00 C30B29/52

    摘要: A method and apparatus for locally and successively melting a material by induction heating using a horizontal floating-zone crucible to refine and/or analyze the material. An electromagnetic field is generated to create a localized molten zone within the material that is at least partially levitated within the crucible. The crucible has an upper peripheral opening so that an upper portion of the molten zone is generally at a higher temperature than the lower portion of the molten zone adjacent the crucible wall. As a result, insoluble inclusions within the material separate and float to the upper portion of the molten zone. The molten zone may be translated longitudinally through the material to drive the inclusions toward one end of the material. The process can be carried out to refine or characterize the material, or to determine the solidus and liquidus temperatures of the material.

    摘要翻译: 一种用于通过感应加热局部且连续地熔化材料的方法和装置,使用水平浮动区坩埚来精炼和/或分析材料。 产生电磁场以产生在坩埚内至少部分悬浮的材料内的局部熔融区。 坩埚具有上周边开口,使得熔融区的上部通常处于比邻近坩埚壁的熔融区的下部更高的温度。 结果,材料内的不溶性夹杂物分离并漂浮到熔融区的上部。 熔融区域可以纵向平移通过材料以朝向材料的一端驱动夹杂物。 该过程可以进行以细化或表征材料,或确定材料的固相和液相线温度。