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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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2.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：US5480470A
公开(公告)日：1996-01-02
申请号：US259103
申请日：1994-06-13
IPC分类号： B22F9/08
CPC分类号： B22F9/082 , B22F2009/088 , B22F2998/00
摘要： A method for atomizing high temperature melts to achieve greater efficiency and smaller particle size is described. The method involves the employment of lower pressure gas coupled with an atomization nozzle larger than prior art structures. The atomization nozzle is part of a close coupled atomization structure having shallow depth dimension. The method allows atomization at melts with reduced likelihood of freeze off. The method reduces heat extraction from the melt while the melt is still contained in the atomization nozzle.
摘要翻译： 描述了一种雾化高温熔体以实现更高效率和更小粒径的方法。 该方法涉及使用与现有技术结构相比较的雾化喷嘴耦合的较低压气体。 雾化喷嘴是具有浅深度尺寸的紧耦合雾化结构的一部分。 该方法允许在熔融物下进行雾化，同时降低冻结的可能性。 该方法在熔体仍然包含在雾化喷嘴中的同时减少了熔体的热量提取。
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4.发明授权Apparatus and method for converting axisymmetric gas flow plenums into non-axisymmetric gas flow plenums 失效将轴对称气流增压室转换成非轴对称气流增压室的装置和方法
公开(公告)号：US5595765A
公开(公告)日：1997-01-21
申请号：US364642
申请日：1994-12-27
CPC分类号： B22F9/082 , B22F2009/088 , B22F2998/00
摘要： Close-coupled atomization systems and methods employing non-axisymmetric gas flow have demonstrated superior efficiency in the production of fine superalloy powder, compared to conventional close-coupled atomization utilizing an axisymmetric annular gas orifice and an axisymmetric melt nozzle. A means has been devised for convening otherwise axisymmetric plenums into non-axisymmetric plenums that produce non-axisymmetric gas flow.
摘要翻译： 与使用轴对称环形气体孔和轴对称熔体喷嘴的常规紧耦合雾化相比，使用非轴对称气流的近耦合雾化系统和方法已经证明在细超细合金粉末的生产中具有优异的效率。 已经设计了一种方法，用于将另外的轴对称气室召集到产生非轴对称气流的非轴对称气室中。
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公开(公告)号：US5198017A
公开(公告)日：1993-03-30
申请号：US833866
申请日：1992-02-11
IPC分类号： B22F9/08
CPC分类号： B22F9/08
摘要： An apparatus that controls the flow of a stream of metal, such as produced from the bottom of a hearth, includes a cylindrical metallic nozzle body having a hollow wall which includes a slit extending substantially parallel to the axis of the cylinder so that there is no electrical continuity around the nozzle wall across the slit. The walls of the cylinder are preferably formed of hollow tubes through which cooling water is passed. A sensor senses a performance characteristic of the apparatus, such as the temperature of the nozzle body. An induction heating coil surrounds the nozzle body, and a controllable induction heating power supply is connected to the induction heating coil to provide power. A controller controls the power provided to the induction heating coil by the induction heating power supply responsive to an output signal of the sensor, so that a selected performance characteristic of the apparatus may be maintained.
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6.发明授权
公开(公告)号：US5268018A
公开(公告)日：1993-12-07
申请号：US939345
申请日：1992-09-02
CPC分类号： B05B7/1606 , B05B12/12 , C23C4/123
摘要： A process and apparatus for producing a spray of atomized metal droplets includes providing an apparatus that forms a spray of molten metal droplets, the apparatus including a metal source and a metal stream atomizer, producing a stream of liquid metal from the metal source, and atomizing the stream of liquid metal with the metal stream atomizer to form the spray of molten metal droplets. A controlled spray of atomized metal droplets is achieved by selectively varying the temperature of the droplets in the spray of molten metal droplets, the step of selectively varying including the step of varying the flow rate of metal produced by the metal source, responsive to a command signal, and sensing the operation of the apparatus and generating the command signal indicative of the operation of the apparatus. The step of atomizing may be accomplished by directing a flow of an atomizing gas at the stream of liquid metal, and then selectively controlling the flow rate of the atomizing gas.
摘要翻译： 用于产生雾化金属液滴的喷雾的方法和装置包括提供形成熔融金属液滴喷雾的装置，该装置包括金属源和金属流雾化器，从金属源产生液态金属流，并且雾化 液态金属流与金属流雾化器形成熔融金属液滴的喷雾。 雾化的金属液滴的受控喷雾通过选择性地改变熔融金属液滴的喷雾中液滴的温度来实现，选择性地改变的步骤包括响应于命令改变由金属源产生的金属的流速的步骤 信号和感测装置的操作并产生指示装置的操作的指令信号。 雾化步骤可以通过在液态金属流处引导雾化气体的流动，然后选择性地控制雾化气体的流速来实现。
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7.发明授权
公开(公告)号：US5176874A
公开(公告)日：1993-01-05
申请号：US788012
申请日：1991-11-05
CPC分类号： B05B7/1606 , B05B12/12 , C23C4/123
摘要： A process and apparatus for producing a spray of atomized metal droplets includes providing an apparatus that forms a spray of molten metal droplets, the apparatus including a metal source and a metal stream atomizer, producing a stream of liquid metal from the metal source, and atomizing the stream of liquid metal with the metal stream atomizer to form the spray of molten metal droplets. A controlled spray of atomized metal droplets is achieved by selectively varying the temperature of the droplets in the spray of molten metal droplets, the step of selectively varying including the step of varying the flow rate of metal produced by the metal source, responsive to a command signal, and sensing the operation of the apparatus and generating the command signal indicative of the operation of the apparatus. The step of atomizing may be accomplished by directing a flow of an atomizing gas at the stream of liquid metal, and then selectively controlling the flow rate of the atomizing gas.
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