Process for producing metal flakes
    2.
    发明授权
    Process for producing metal flakes 失效
    生产金属薄片的方法

    公开(公告)号:US4743297A

    公开(公告)日:1988-05-10

    申请号:US33708

    申请日:1987-04-03

    IPC分类号: B22F1/00 B22F9/04

    摘要: A process is disclosed for producing metal flakes. The process involves entraining the metal powder particles in a carrier gas and passing the powder particles through a high temperature zone at a temperature above the melting point of the powder particles to melt at least about 50% of the powder particles, resolidifying the resulting high temperature treated material by impacting the material against a substrate, and thereafter contacting the material with a non-oxidizing gas which can be nitrogen, argon, hydrogen, helium or combinations of these to remove the material from the substrate in the form of flakes.

    摘要翻译: 公开了一种用于生产金属薄片的方法。 该方法包括将金属粉末颗粒夹带在载气中,并使粉末颗粒在高于粉末颗粒熔点的温度下通过高温区域,以熔化至少约50%的粉末颗粒,将所得到的高温 然后将材料与非氧化性气体接触,所述非氧化性气体可以是氮气,氩气,氢气,氦气或这些材料的组合,以从薄片形式从衬底去除材料。

    Gas dispersion shroud for high temperature processing of powders
    3.
    发明授权
    Gas dispersion shroud for high temperature processing of powders 失效
    用于高温处理粉末的气体分散罩

    公开(公告)号:US4880605A

    公开(公告)日:1989-11-14

    申请号:US161923

    申请日:1988-02-29

    IPC分类号: B01J8/14 B01J10/00 B22F1/00

    摘要: Apparatus is disclosed for reacting a powder with a gas comprising a shroud consisting of a first section having a peripheral cylindrical wall with inner surface and outer surface. Inner surface defines a cavity which serves as reaction chamber in which powder and gas react. First section is detatchably mounted at top end to exit nozzle of high temperature source. First section has powder inlet opening(s) extending through peripheral wall from outer surface to inner surface, thereby connecting the outside with reaction chamber through which powder enters the chamber. Powder inlet opening(s) are positioned sufficiently close to exit nozzle to allow powder to melt and react with gas in the molten state. Second section forms cylindrical jacket skirting lower part of first section at a point below powder inlet openings. Jacket has outer peripheral wall, inner wall one and same with peripheral wall of first section, and top and bottom ring plates forming top and bottom walls respectively of second section. Walls of second section define a plenum. Second section has outer opening(s) through outer peripheral wall of jacket connecting outside with plenum through which gas enters from outside to plenum. Second section has two or more inner openings through inner wall of second section, which connect plenum with chamber through which gas enters chamber from plenum to react with powder in chamber. Inner openings are directed downward into chamber and tangential to inner surface of shroud. Resulting reaction product exits shroud through bottom end of chamber.

    摘要翻译: 公开了用于使粉末与包括由具有内表面和外表面的圆周壁的第一部分组成的护罩的气体反应的装置。 内表面限定用作反应室的空腔,其中粉末和气体反应。 第一部分可顶端安装在高温源的出口处。 第一部分具有从外表面到内表面延伸穿过周壁的粉末入口,从而将外部与反应室连接,粉末通过该反应室进入室。 粉末入口开口被定位成足够靠近出口喷嘴,以使粉末熔化并在熔融状态下与气体反应。 第二部分在粉末入口开口下方形成第一部分的圆柱形套管裙部下部。 护套具有外周壁,内壁与第一部分的周壁相同,顶壁和底环分别形成第二段的顶壁和底壁。 第二部分的墙壁定义了一个会议厅。 第二部分具有通过外部连接外部的外套的外部开口,气室通过气室从外部进入气室。 第二部分具有通过第二部分的内壁的两个或多个内部开口,其将气室与室连通,气体通过该室从气室进入室以与室中的粉末反应。 内部开口向下指向腔室并与护罩的内表面相切。 产生的反应产物通过室的底端离开护罩。

    Multilayer cooling disc for use in high temperature processing
    4.
    发明授权
    Multilayer cooling disc for use in high temperature processing 失效
    多层冷却盘用于高温处理

    公开(公告)号:US4760711A

    公开(公告)日:1988-08-02

    申请号:US81050

    申请日:1987-08-03

    IPC分类号: H01L21/00 F25D17/02

    CPC分类号: H01L21/67011

    摘要: A disc is disclosed which comprises a top layer, a middle layer, and a bottom layer. The top layer is placed proximate to a high temperature reactor and at least the outer surface of the top layer is made of a material which allows it to act as a substrate against which molten particles are impacted to microatomize the particles. The layers are positioned one above the other with a first space between the bottom surface of the top layer and the top surface of the middle layer, and a second space between the bottom surface of the middle layer and the top surface of the bottom layer. The top and bottom layers are joined together and stabilized by a peripheral wall around the circumferential edge of the top and bottom layer. The middle layer is fixedly mounted to the bottom layer. The middle layer is smaller in diameter than the diameters of the top and bottom layers so that a third space is defined between the inner surface of the peripheral wall and the circumferential edge of the middle layer. The bottom and middle layers have openings through which a cooling fluid passes to the first space to cool the top layer, and thereafter passed by centrifugal force generated by the spinning of the disc and the motion of the fluid through the third space, and exits the disc through the second space. The disc is rotatably mounted to spinning means to allow the disc to spin.

    摘要翻译: 公开了一种盘,其包括顶层,中间层和底层。 顶层被放置在靠近高温反应器的位置,并且顶层的至少外表面由允许其作为基底的材料制成,使熔融的颗粒受到冲击以微粒化微粒。 这些层通过顶层的底表面和中间层的顶表面之间的第一空间以及中间层的底表面和底层的顶表面之间的第一空间彼此重叠地定位。 顶层和底层通过围绕顶层和底层周缘的周边壁连接在一起并稳定。 中间层固定安装在底层。 中间层的直径小于顶层和底层的直径,使得在周壁的内表面和中间层的周边之间限定第三空间。 底层和中间层具有开口,冷却流体通过该开口流到第一空间以冷却顶层,然后通过由盘的旋转产生的离心力和流体通过第三空间的运动而离开 光盘通过第二个空格。 盘被可旋转地安装到旋转装置以允许盘旋转。