Method and device for atomizing molten metals
    32.
    发明申请
    Method and device for atomizing molten metals 审中-公开
    用于雾化熔融金属的方法和装置

    公开(公告)号:US20020134198A1

    公开(公告)日:2002-09-26

    申请号:US10070527

    申请日:2002-03-06

    Inventor: Alfred Edlinger

    Abstract: In a method for atomizing metal melts, in which the liquid metal bath is sprayed from a tundish via an outlet opening by the aid of a gas into a cooling chamber, or onto a surface to be coated while compacting the comminuted particles by the aid of a propellant gas, the liquid metal melt via an annular gap is introduced into the outlet opening, into which a hot gas having a temperature of between 250null C. and 1300null C. and a supercritical pressure of between 2 and 30 bars is ejected through a Laval nozzle concentrically with said opening. The hot gas is contacted with the melt bath at a speed exceeding supersonic speed, with a radial outwardly directed component or with a twist. The device for carrying out the method includes a melt tundish (1) and an immersion tube (4) immersed in the melt (2) while forming an annular gap surrounding the outlet opening for the melt (2) and a lance (7) for the ejection of a propellant gas, wherein the height-adjustable lance (7) carries a Laval nozzle (9).

    Abstract translation: 在一种用于雾化金属熔体的方法中,其中液体金属浴通过气体通过出口开口从中间包被喷射到冷却室中,或在待涂覆的表面上,同时借助于粉碎的颗粒 推进剂气体,通过环形间隙的液态金属熔体被引入出口开口中,其中温度在250℃和1300℃之间的热气体和2和30巴之间的超临界压力被喷出 通过与所述开口同心的拉瓦尔喷嘴。 热气体与熔体浴以超过超声速度的速度接触,具有径向向外的部件或扭曲。 用于执行该方法的装置包括熔体中间罐(1)和浸入熔体(2)中的浸入管(4),同时形成围绕熔体(2)的出口的环形间隙和用于 喷射推进剂气体,其中高度可调的喷枪(7)携带拉瓦尔喷嘴(9)。

    Method and apparatus for producing a discrete droplet of high
temperature liquid
    34.
    发明授权
    Method and apparatus for producing a discrete droplet of high temperature liquid 失效
    用于生产高温液体离散液滴的方法和装置

    公开(公告)号:US5598200A

    公开(公告)日:1997-01-28

    申请号:US378713

    申请日:1995-01-26

    Applicant: David W. Gore

    Inventor: David W. Gore

    Abstract: A method and an apparatus (10) eject on demand a discrete droplet (12) of liquid at a high temperature along a predetermined trajectory (18) by transferring a physical impulse from a low temperature environment to a high temperature environment. The ejector apparatus includes a vessel (26) having an interior (24) that contains a high-temperature liquid (14), such as liquid metal, Al, Zn or Sn. The interior includes an inlet end (30) that receives a thermally insulative impulse transmitting device (22) and a feed supply (34) of the droplet material, and a discharge region (56) having an orifice (16) through which the discrete droplets are ejected. An inert gas is feed through the inlet end and into the vessel to create an overpressure over the liquid so that as the overpressure is increased the droplet size is increased. A heater (70) heats the material contained within the interior. An impulse generator (20) is connected and imparts a physical impulse to the impulse transmitting device to produce an ejection pressure at the orifice to eject a discrete droplet of the high-temperature liquid. The impulse generator including a pulse generator electrically connected to a pulse amplifier that is electrically connected to an acoustic device, such as a loudspeaker.

    Abstract translation: 方法和装置(10)通过将物理冲击从低温环境转移到高温环境,沿着预定轨迹(18)按需要喷射处于高温的液体的离散液滴(12)。 喷射装置包括具有内部(24)的容器(26),所述内部(24)包含诸如液体金属,Al,Zn或Sn的高温液体(14)。 内部包括接收热绝缘脉冲传输装置(22)和液滴材料的进料供给装置(34)的入口端(30)和具有孔口(16)的排放区域(56),离子液滴 被弹出 惰性气体通过入口端进入容器以在液体上产生超压,使得随着超压增加,液滴尺寸增加。 加热器(70)加热内部所包含的材料。 脉冲发生器(20)被连接并且向脉冲发射装置施加物理冲击以在孔处产生喷射压力以喷射高温液体的离散液滴。 脉冲发生器包括电连接到脉冲放大器的脉冲发生器,脉冲放大器电连接到诸如扬声器的声学装置。

    Gas atomizer for spray casting
    35.
    发明授权
    Gas atomizer for spray casting 失效
    喷雾喷雾器

    公开(公告)号:US4901784A

    公开(公告)日:1990-02-20

    申请号:US330049

    申请日:1989-03-29

    Abstract: A gas-atomizing system for spray casting a spray of molten metal on a moving substrate in which the gas atomizing device is in the form of an annulus having a central opening therethrough through which the molten metal to be atomized flows. The annulus is provided with a plenum chamber which communicates with elongated openings on the bottom surface of the annulus. The manifold and outlets are so arranged that a divergent conical spray pattern is produced having a central axis inclined with respect to the vertical axis of the molten metal stream in a direction downstream of the moving substrate upon which the spray material is deposited.

    Abstract translation: 一种用于在移动基板上喷射熔融金属喷雾的气体雾化系统,其中气体雾化装置是具有中心开口的环形的形式,待雾化的熔融金属通过该中心开口流过。 环带设置有与环形物的底表面上的细长开口连通的增压室。 歧管和出口被布置成使得产生具有相对于熔融金属流的垂直轴线倾斜的中心轴线的发散锥形喷射图案,该中心轴线沿着移动基板的下游方向沉积喷涂材料。

    Metal powder production apparatus
    37.
    发明授权

    公开(公告)号:US11712739B2

    公开(公告)日:2023-08-01

    申请号:US16696553

    申请日:2019-11-26

    Abstract: A metal powder production apparatus capable of easily preventing an oxide in a molten metal from entering a liquid nozzle is provided. The metal powder apparatus includes a first crucible heating and melting a melting material to generate molten metal, a first heating device heating and melting the metal in the first crucible, a stopper opening and closing a first opening provided on the bottom surface of the first crucible, an introduction pipe having one end connected to the first opening of the first crucible and leading a molten metal in the first crucible to the outside of the first crucible, a second crucible receiving the molten metal flowing out of the introduction pipe, a second heating device heating the second crucible, and a liquid nozzle provided on the bottom surface of the second crucible.

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