Apparatus for making environmentally stable reactive alloy powders
    1.
    发明授权
    Apparatus for making environmentally stable reactive alloy powders 失效
    用于制造环境稳定的反应性合金粉末的装置

    公开(公告)号:US5589199A

    公开(公告)日:1996-12-31

    申请号:US328115

    申请日:1994-10-24

    摘要: Apparatus and method for making powder from a metallic melt by atomizing the melt to form droplets and reacting the droplets downstream of the atomizing location with a reactive gas. The droplets are reacted with the gas at a temperature where a solidified exterior surface is formed thereon and where a protective refractory barrier layer (reaction layer) is formed whose penetration into the droplets is limited by the presence of the solidified surface so as to avoid selective reduction of key reactive alloyants needed to achieve desired powder end use properties. The barrier layer protects the reactive powder particles from environmental constituents such as air and water in the liquid or vapor form during subsequent fabrication of the powder to end-use shapes and during use in the intended service environment.

    摘要翻译: 通过使熔体雾化以形成液滴并使雾化位置下游的液滴与反应性气体反应从金属熔体制造粉末的装置和方法。 在其上形成凝固的外表面的温度下,液滴与气体反应,并且形成保护性耐火阻挡层(反应层),其中渗入液滴的渗透被固化表面的存在所限制,以避免选择性 减少需要达到所需粉末末端使用性能的关键反应性合金。 阻挡层在随后将粉末制成粉末至最终使用形状和使用期间在预期的使用环境中保护反应性粉末颗粒免受诸如空气和水的液体或蒸汽形式的环境成分的影响。

    Dispersoid reinforced alloy powder and method of making
    2.
    发明授权
    Dispersoid reinforced alloy powder and method of making 有权
    分散增强合金粉末及其制造方法

    公开(公告)号:US08864870B1

    公开(公告)日:2014-10-21

    申请号:US13506683

    申请日:2012-05-09

    IPC分类号: C22C19/03 C22C1/10

    摘要: A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. Bodies made from the dispersion strengthened solidified particles exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures.

    摘要翻译: 制造分散强化合金颗粒的方法包括熔化具有腐蚀和/或抗氧化性赋予合金元素,分散质形成元素和基质金属的合金,其中分散质形成元素表现出更大的与 从雾化气体获得的反应物质比合金元素。 熔化的合金与包括反应性物质的雾化气体雾化以形成雾化颗粒,使得反应性物质(a)溶解在固溶体中至雾化颗粒表面下方的深度和/或(b)与分散质 - 形成元素以在雾化颗粒中形成分散质,使其在所述雾化颗粒的表面下方的深度。 由分散体增强的固化颗粒制成的体表现出增强的疲劳和抗蠕变性和降低的磨损以及在高温下增强的耐腐蚀和/或抗氧化性能。

    Thermal sprayed composite melt containment tubular component and method of making same
    3.
    发明授权
    Thermal sprayed composite melt containment tubular component and method of making same 有权
    热喷涂复合熔体容器管状部件及其制造方法

    公开(公告)号:US06358466B1

    公开(公告)日:2002-03-19

    申请号:US09343019

    申请日:2000-04-17

    IPC分类号: C21C700

    摘要: A tubular thermal sprayed melt containment component for transient containment of molten metal or alloy wherein the tubular member includes a thermal sprayed inner melt-contacting layer for contacting molten metal or alloy to be processed, a thermal sprayed heat-generating layer deposited on the inner layer, and an optional thermal sprayed outer thermal insulating layer. The thermal sprayed heat-generating layer is inductively heated as a susceptor of an induction field or electrical resistively heated by passing electrical current therethrough. The tubular thermal sprayed melt containment component can comprise an elongated melt pour tube of a gas atomization apparatus where the melt pour tube supplies molten material from a crucible to an underlying melt atomization nozzle.

    摘要翻译: 一种用于瞬时容纳熔融金属或合金的管状热喷涂熔体容纳部件,其中所述管状部件包括用于接触待加工的熔融金属或合金的热喷射内部熔体接触层,沉积在内层上的热喷涂发热层 ,以及可选的热喷涂外部绝热层。 热喷涂发热层作为感应场的感受器进行感应加热,或通过使电流通过电阻进行电加热。 管状热喷涂熔体容纳部件可以包括气体雾化装置的细长的熔融浇注管,其中熔融浇注管将熔融材料从坩埚提供到下面的熔体雾化喷嘴。

    Atomizing nozzle and method
    4.
    发明授权
    Atomizing nozzle and method 失效
    雾化喷嘴和方法

    公开(公告)号:US6142382A

    公开(公告)日:2000-11-07

    申请号:US87410

    申请日:1998-05-29

    IPC分类号: B22F9/08 A62C5/02 B05B1/24

    CPC分类号: B22F9/082 B22F2009/088

    摘要: A high pressure close-coupled gas atomizing nozzle includes multiple discrete gas jet discharge orifices having aerodynamically designed convergent-divergent geometry with an first converging section communicated to a gas supply manifold and to a diverging section by a constricted throat section to increase atomizing gas velocity. The gas jet orifices are oriented at gas jet apex angle selected relative to the melt supply tip apex angle to establish a melt aspiration condition at the melt supply tip.

    摘要翻译: 高压紧耦合气体雾化喷嘴包括具有空气动力学设计的会聚发散几何形状的多个分立的气体喷射排出孔,其中第一会聚部分连通到气体供应歧管,并且通过收缩的喉部延伸到发散部分以增加雾化气体速度。 气体喷射孔以相对于熔体供应顶端顶角选择的气体喷射顶角定向,以在熔体供应尖端处建立熔体抽吸条件。

    Dispersoid reinforced alloy powder and method of making
    5.
    发明授权
    Dispersoid reinforced alloy powder and method of making 有权
    分散增强合金粉末及其制造方法

    公开(公告)号:US07699905B1

    公开(公告)日:2010-04-20

    申请号:US11429918

    申请日:2006-05-08

    IPC分类号: B22F9/08

    摘要: A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.

    摘要翻译: 制造分散强化合金颗粒的方法包括熔化具有腐蚀和/或抗氧化性赋予合金元素,分散质形成元素和基质金属的合金,其中分散质形成元素表现出更大的与 从雾化气体获得的反应物质比合金元素。 熔化的合金与包括反应性物质的雾化气体雾化以形成雾化颗粒,使得反应性物质(a)溶解在固溶体中至雾化颗粒表面下方的深度和/或(b)与分散质 - 形成元素以在雾化颗粒中形成分散质,使其在所述雾化颗粒的表面下方的深度。 雾化的合金颗粒作为固化合金颗粒固化,或作为合金颗粒的固化沉积物固化。 由分散强化的合金颗粒,其沉积物,由于存在耐腐蚀和/或抗氧化性赋予的合金元素,在高温下表现出增强的疲劳和抗蠕变性和降低的磨损以及增强的耐腐蚀和/或耐氧化性。 在颗粒合金基质中的固溶体。

    Lead-free solder
    6.
    发明授权
    Lead-free solder 失效
    无铅焊料

    公开(公告)号:US06231691B1

    公开(公告)日:2001-05-15

    申请号:US08796471

    申请日:1997-02-10

    IPC分类号: C22C700

    CPC分类号: B23K35/262

    摘要: A Sn—Ag—Cu eutectic alloy is modified with one or more low level and low cost alloy additions to enhance high temperature microstructural stability and thermal-mechanical fatigue strength without decreasing solderability. Purposeful fourth or fifth element additions in the collective amount not exceeding about 1 weight % (wt. %) are added to Sn—Ag—Cu eutectic solder alloy based on the ternary eutectic Sn—4.7%Ag—1.7%Cu (wt. %) and are selected from the group consisting essentially of Ni, Fe, and like-acting elements as modifiers of the intermetallic interface between the solder and substrate to improve high temperature solder joint microstructural stability and solder joint thermal-mechanical fatigue strength.

    摘要翻译: Sn-Ag-Cu共晶合金用一种或多种低水平和低成本的合金添加剂进行改性,以提高高温微结构稳定性和热机械疲劳强度,而不降低可焊性。 基于三元共晶Sn-4.7%Ag-1.7%Cu(重量%),Sn-Ag-Cu共晶焊料合金中加入总量不超过约1重量%(重量%)的有目的的第四或第五元素添加量 ),并且选自基本上由Ni,Fe和类似作用元素组成的组,作为焊料和衬底之间的金属间界面的改性剂,以改善高温焊点微结构稳定性和焊点热 - 机械疲劳强度。

    Dispersoid reinforced alloy powder and method of making
    8.
    发明授权
    Dispersoid reinforced alloy powder and method of making 有权
    分散增强合金粉末及其制造方法

    公开(公告)号:US08197574B1

    公开(公告)日:2012-06-12

    申请号:US12660354

    申请日:2010-02-25

    IPC分类号: C22C29/12 C22C38/18

    摘要: A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.

    摘要翻译: 制造分散强化合金颗粒的方法包括熔化具有腐蚀和/或抗氧化性赋予合金元素,分散质形成元素和基质金属的合金,其中分散质形成元素表现出更大的与 从雾化气体获得的反应物质比合金元素。 熔化的合金与包括反应性物质的雾化气体雾化以形成雾化颗粒,使得反应性物质(a)溶解在固溶体中至雾化颗粒表面下方的深度和/或(b)与分散质 - 形成元素以在雾化颗粒中形成分散质,使其在所述雾化颗粒的表面下方的深度。 雾化的合金颗粒作为固化合金颗粒固化,或作为合金颗粒的固化沉积物固化。 由分散强化的合金颗粒,其沉积物,由于存在耐腐蚀和/或抗氧化性赋予的合金元素,在高温下表现出增强的疲劳和抗蠕变性和降低的磨损以及增强的耐腐蚀和/或耐氧化性。 在颗粒合金基质中的固溶体。

    Atomizer with liquid spray quenching
    10.
    发明授权
    Atomizer with liquid spray quenching 失效
    雾化器用液体喷雾淬火

    公开(公告)号:US5738705A

    公开(公告)日:1998-04-14

    申请号:US560711

    申请日:1995-11-20

    IPC分类号: B22F9/08 B22F9/10

    CPC分类号: B22F9/08

    摘要: Method and apparatus for making metallic powder particles wherein a metallic melt is atomized by a rotating disk or other atomizer at an atomizing location in a manner to form molten droplets moving in a direction away from said atomizing location. The atomized droplets pass through a series of thin liquid quenching sheets disposed in succession about the atomizing location with each successive quenching sheet being at an increasing distance from the atomizing location. The atomized droplets are incrementally cooled and optionally passivated as they pass through the series of liquid quenching sheets without distorting the atomized droplets from their generally spherical shape. The atomized, cooled droplets can be received in a chamber having a collection wall disposed outwardly of the series of liquid quenching sheets. A liquid quenchant can be flowed proximate the chamber wall to carry the cooled atomized droplets to a collection chamber where atomized powder particles and the liquid quenchant are separated such that the liquid quenchant can be recycled.

    摘要翻译: 制造金属粉末颗粒的方法和装置,其中金属熔体在雾化位置由旋转盘或其它雾化器雾化,以形成沿远离雾化位置的方向移动的熔融液滴。 雾化的液滴通过一系列薄的液体淬火片,其连续地布置在雾化位置处,每个连续的淬火片处于与雾化位置相距增加的距离。 雾化的液滴被逐渐冷却,并且当它们通过一系列液体淬火片时可选地钝化,而不会使雾化的液滴从其大致球形的形状变形。 雾化的冷却液滴可以被容纳在具有设置在一系列液体淬火片的外部的收集壁的腔室中。 液体淬灭剂可以在室壁附近流动,以将冷却的雾化液滴携带到收集室,其中雾化的粉末颗粒和液体淬火剂被分离,使得液体淬灭剂可以再循环。