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公开(公告)号：US5601781A
公开(公告)日：1997-02-11
申请号：US415914
申请日：1995-06-22
CPC分类号： B22F9/082 , C23C4/123 , B22F2009/088 , B22F2998/00
摘要： Close-coupled atomization systems and methods employing axisymmetric fluid flow and non-axisymmetric melt guide tube exit orifice configuration have demonstrated superior efficiency in the production of fine superalloy powder, such as, for example, nickel base superalloys compared to conventional close-coupled atomization utilizing an axisymmetric annular gas orifice and an axisymmetric guide melt guide tube exit orifice configuration.
摘要翻译： 使用轴对称流体流动和非轴对称熔体引导管出口孔结构的近耦合雾化系统和方法已经证明了与常规的紧密耦合的雾化利用相比，在细的超级合金粉末（例如镍基超级合金）的生产中具有优异的效率 轴对称环形气体孔口和轴对称引导熔体导管出口孔构造。
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公开(公告)号：US5516354A
公开(公告)日：1996-05-14
申请号：US236828
申请日：1994-05-02
CPC分类号： B22F9/082 , G01J5/041 , B22F2999/00
摘要： An apparatus and method for atomizing liquid metal are disclosed. A liquid metal supply is coupled to a nozzle for atomizing a stream of liquid metal in an atomizing zone extending from the nozzle. A viewing instrument provides a field of view extending to the atomization zone. A sensor coupled with the viewing instrument generates an image of the atomizing zone, and a control adjusts a flow rate of the stream responsive to the image.
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公开(公告)号：US5289975A
公开(公告)日：1994-03-01
申请号：US900369
申请日：1992-06-18
CPC分类号： B22F9/082 , B22F2009/088
摘要： A nozzle for atomizing molten metal to provide a powder having improved yield of fine particles is disclosed. The nozzle is comprised of a gas plenum, a melt delivery tube, and an annular inner wall means within the gas plenum for delivering atomizing gas to the exit orifice of the melt delivery tube. The exit orifice of the melt delivery tube has a ratio of inside diameter to outside diameter that provides a reduced flow of liquid through the tube during atomization.
摘要翻译： 公开了一种用于雾化熔融金属以提供具有提高的微粒产率的粉末的喷嘴。 喷嘴由气室，熔体输送管和气室内的环形内壁装置组成，用于将雾化气体输送到熔体输送管的出口。 熔体输送管的出口具有内径与外径之比，其在雾化期间提供液体通过管的流动。
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4.发明授权Apparatus and method for viewing an industrial process such as a molten metal atomization process 失效用于观察诸如熔融金属雾化工艺的工业过程的装置和方法
公开(公告)号：US5520371A
公开(公告)日：1996-05-28
申请号：US231076
申请日：1994-04-22
CPC分类号： B22F9/082 , G01J5/041 , B22F2999/00
摘要： An apparatus, system and method for viewing an industrial process in an obscuring environment, such as molten metal atomization, is disclosed. An enclosure defining a chamber for containing a particulate form from atomized liquid metal has a nozzle for atomizing liquid metal mounted thereon in communication with the chamber whereby particles recirculate throughout the chamber. The nozzle being comprised of a cylindrical plenum means and a melt guide tube extending axially therethrough to an exit orifice. The plenum means is configured to provide a jet of atomizing gas converging in an atomizing zone extending from the exit orifice. A viewing means extends through the enclosure to a viewing orifice adjacent the atomization zone, the viewing means being configured to extend a field of view through the chamber to the atomization zone. A purging gas flow is provided in the viewing means to minimize atomized particles from contacting the window, and an image of the atomization zone is generated by viewing through the window.
摘要翻译： 公开了一种用于在模糊环境中观察工业过程的装置，系统和方法，例如熔融金属雾化。 限定用于从雾化液体金属容纳颗粒形式的室的外壳具有用于雾化安装在其上的与该室连通的液态金属的喷嘴，由此颗粒在整个室中再循环。 喷嘴由圆柱形增压装置和轴向穿过其延伸到出口的熔体引导管组成。 增压装置构造成提供在从出口延伸的雾化区中会聚的雾化气体射流。 观察装置通过外壳延伸到邻近雾化区的观察孔，观察装置构造成将视野通过室延伸到雾化区。 在观察装置中提供净化气体流，以将雾化的颗粒与窗口接触最小化，并且通过观察窗口产生雾化区域的图像。
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5.发明授权
公开(公告)号：US5547171A
公开(公告)日：1996-08-20
申请号：US429993
申请日：1995-04-27
CPC分类号： B22F9/082 , G01J5/041 , B22F2999/00
摘要： An apparatus and method for atomizing liquid metal are disclosed. A liquid metal supply is coupled to a nozzle for atomizing a stream of liquid metal in an atomizing zone extending from the nozzle. A viewing instrument provides a field of view extending to the atomization zone. A sensor coupled with the viewing instrument generates an image of the atomizing zone, and a control adjusts a flow rate of the stream responsive to the image.
摘要翻译： 公开了一种用于雾化液态金属的装置和方法。 液体金属供应源连接到喷嘴，用于雾化从喷嘴延伸的雾化区域中的液态金属流。 观察仪器提供延伸到雾化区域的视场。 与观察仪器耦合的传感器产生雾化区域的图像，并且控制器响应于图像调节流量的流量。
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公开(公告)号：US5244369A
公开(公告)日：1993-09-14
申请号：US997752
申请日：1992-12-30
IPC分类号： B22F9/08
CPC分类号： B22F9/08
摘要： An apparatus for viewing the atomization of liquid metal is disclosed. A nozzle for atomizing liquid metal having a cylindrical plenum, and a melt guide tube extending axially therethrough to a melt exit orifice. The plenum defines an inner chamber coupled with an atomizing gas orifice spaced from the exit orifice and configured to provide an annular jet of atomizing gas converging in an atomizing zone extending below the exit orifice The plenum having an inner sidewall and an outer sidewall defining the inner chamber therebetween. The inner sidewall extends below the exit orifice so that the inner sidewall is spaced from the atomizing zone. A cylindrical sleeve extends through the outer sidewall to a first end in the inner chamber. A camera mounted in the sleeve has a field of view extending from the first end. A transparent window is mounted to seal the first end. The sleeve is positioned so the field of view extends through the atomization zone. A porthole extends through the inner sidewall along the field of view to provide a view of the atomization zone to the camera, and for a gas flow therefrom.
摘要翻译： 公开了一种用于观察液态金属雾化的装置。 一种用于雾化具有圆柱形增压室的液体金属的喷嘴，以及沿轴向延伸到熔体出口孔的熔体引导管。 气室限定了一个与出口孔间隔开的雾化气体孔的内室，该雾化气体孔被设置成提供雾化气体的环形射流，该雾化气体会聚在出口孔下方的雾化区中。该气室具有内侧壁和外侧壁， 在它们之间。 内侧壁在出口孔的下方延伸，使得内侧壁与雾化区隔开。 圆柱形套筒通过外侧壁延伸到内腔中的第一端。 安装在套筒中的相机具有从第一端延伸的视场。 安装透明窗口以密封第一端。 定位套筒使得视场延伸穿过雾化区。 舷窗沿着视野延伸穿过内侧壁，以提供到照相机的雾化区的视图，以及用于从其的气流。
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公开(公告)号：US5402656A
公开(公告)日：1995-04-04
申请号：US293403
申请日：1994-08-22
申请人： Heinz Jaster , Russell S. Miller
发明人： Heinz Jaster , Russell S. Miller
CPC分类号： F28D7/082 , F25B39/02 , F25D17/065 , F28D7/08 , F25B2500/01 , F25D2317/0654 , F25D2317/0664 , F25D2400/04
摘要： A refrigerator evaporator is formed in a spread serpentine configuration having a plurality of straight tube segments and a plurality of bent tube segments where each one of the straight tube segments is joined at an acute angle to at least one other straight tube segment. The straight tube segments are arranged in a number of planar rows which are adjacent and parallel to one another. Approximately 25-50 percent of the cross-sectional area of the evaporator is not occupied by tubing or any attached fins. A cross flow blower disposed at one end of the evaporator draws air longitudinally over the evaporator.
摘要翻译： 冰箱蒸发器形成为具有多个直管段和多个弯管段的扩展蛇形结构，其中每个直管段以至少一个其他直管段以锐角接合。 直管段布置成彼此相邻并平行的多个平面行。 蒸发器横截面面积的大约25-50％不被管道或任何附加的翅片所占据。 设置在蒸发器一端的横流鼓风机在蒸发器上纵向吸引空气。
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公开(公告)号：US4959841A
公开(公告)日：1990-09-25
申请号：US376095
申请日：1989-07-06
CPC分类号： F27D99/00 , H05B7/00 , F27D2099/0095 , F27D25/00
摘要： A method of reducing contamination caused by high intensity heating of metals is taught. Splatter, vapor droplets and particulate matter is collected to avoid return to the melt. An electric field is established in the heating zone to attract the vapor droplets and particles to charged plates.
摘要翻译： 教导了一种减少金属高强度加热引起的污染的方法。 收集飞溅物，蒸气滴和颗粒物质以避免返回熔体。 在加热区中建立电场以将蒸气滴和颗粒吸引到带电板上。
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公开(公告)号：US4819450A
公开(公告)日：1989-04-11
申请号：US56173
申请日：1987-06-01
申请人： Russell S. Miller
发明人： Russell S. Miller
IPC分类号： F17C13/00 , G01R33/3815 , F25B19/00
CPC分类号： G01R33/3815 , H01F6/04 , Y10S220/901
摘要： A radiation shield assembly is provided for a cryostat having a helium vessel and which inlcudes a penetration for cooling the helium vessel. The radiation shield assembly comprises a shield having means for conducting heat toward the cryostat penetration, means for providing an isothermal surface and means for reflecting radiation. The shield surrounds the helium vessel, and is spaced away from the helium vessel by spacer means comprising isolated packets of powder insulation in permeable packages.
摘要翻译： 为具有氦容器的低温恒温器提供辐射屏蔽组件，其包括用于冷却氦容器的穿透。 辐射屏蔽组件包括具有用于向低温恒温器穿透传导热量的装置的屏蔽件，用于提供等温表面的装置和用于反射辐射的装置。 屏蔽罩围绕氦容器，并且通过间隔装置与氦容器间隔开，该隔离装置包括可渗透包装中的隔离的粉末绝缘包。
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公开(公告)号：US4562703A
公开(公告)日：1986-01-07
申请号：US676368
申请日：1984-11-29
申请人： Russell S. Miller , Thomas E. Price
发明人： Russell S. Miller , Thomas E. Price
IPC分类号： F25D3/10 , A61B5/055 , A61B10/00 , F17C3/08 , F17C13/00 , F25D19/00 , G01R33/3815 , H01F7/20 , F25B19/00
CPC分类号： F25D19/006 , F17C3/085 , F17C2203/0687 , F17C2221/017 , F17C2270/0536 , G01R33/3804 , H01F6/04
摘要： A vent tube which is particularly useful for horizontal cryostat penetration comprises a plurality of conduit sections joined by mating rings which facilitate the incorporation of relatively deep circumferential grooves in the conduit sections. Thermal contact springs, preferably in the form of a single strip are disposed in these circumferential grooves so as to provide a means for transfer of thermal energy from the cryostat interior to the exterior either for general refrigeration requirements or for liquefaction of coolant vapor which may have boiled off from the cryostat interior. The cryostat which incorporates the present invention is particularly useful in housing NMR medical diagnostic imaging magnet and coil systems.
摘要翻译： 特别适用于水平低温恒温器穿透的排气管包括多个通过配合环连接的导管部分，这些导管部分有助于在导管部分中引入相对较深的周向凹槽。 优选以单条形式的热接触弹簧设置在这些周向槽中，以便提供用于将热能从低温恒温器内部传递到外部的装置，用于一般制冷要求或用于液化冷却剂蒸气 从低温恒温器内部煮沸。 结合本发明的低温恒温器在包含NMR医学诊断成像磁体和线圈系统中是特别有用的。
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