Magnetic field-generating nozzle for atomizing a molten metal stream
into a particle spray
    11.
    发明授权
    Magnetic field-generating nozzle for atomizing a molten metal stream into a particle spray 失效
    用于将熔融金属流雾化成颗粒喷雾的磁场产生喷嘴

    公开(公告)号:US4925103A

    公开(公告)日:1990-05-15

    申请号:US322433

    申请日:1989-03-13

    摘要: A molten metal spray-depositing apparatus employs a magnetic field-generating nozzle for atomizing a molten metal stream into a spray of metal particles. The magnetic driving field generated by the magnetic atomizing nozzle generates eddy currents which produce an induced field in the metal stream opposing the driving field and creating a torque which causes the stream to break up upon exiting the driving field. The nozzle has one of two configurations for generating one of two generic magnetic field geometries. In one configuration the nozzle utilizes a pair of spaced magnetic poles, such as provided by Helmholtz coils, for generating a transverse magnetic field geometry across the stream. In the other configuration the nozzle employs a solenoid coil for generating a solenoidal magnetic field geometry parallel to the stream. Preferably, the magnetic field of each geometry is a high frequency AC field since better coupling between the field and stream occurs and more eddy currents are induced at higher frequency.

    摘要翻译: 熔融金属喷镀装置采用磁场产生喷嘴将熔融金属流雾化成金属颗粒喷雾。 由磁性雾化喷嘴产生的磁驱动场产生涡流,该涡电流在与驱动场相对的金属流中产生感应场,并产生使流在离开驱动场时分裂的转矩。 喷嘴具有用于产生两个通用磁场几何形状之一的两种配置之一。 在一种配置中,喷嘴利用一对间隔的磁极,例如由亥姆霍兹线圈提供的磁极,用于在整个流上产生横向磁场几何。 在另一种配置中,喷嘴采用螺线管线圈来产生平行于流的螺线管磁场几何。 优选地,每个几何形状的磁场是高频AC场,因为场和流之间的更好的耦合发生,并且在较高频率下引起更多的涡流。

    Method and apparatus for producing particles from a molten material
using a rotating disk having a serrated periphery and dam means
    12.
    发明授权
    Method and apparatus for producing particles from a molten material using a rotating disk having a serrated periphery and dam means 失效
    使用具有锯齿状周边的旋转盘和坝装置从熔融材料制造颗粒的方法和装置

    公开(公告)号:US4385013A

    公开(公告)日:1983-05-24

    申请号:US271554

    申请日:1981-06-08

    IPC分类号: B01J2/02 B22F9/08

    摘要: A method and apparatus for producing particulate directly from a supply of molten material by the use of a rotating member having discrete serrations in the periphery thereof. The leading surfaces of the serrations contact the molten material and propel a portion into a cavity formed by the surfaces of the serration while under the effect of a surface of a dam means, in proximity to which the serrations pass. The dam means is immersed in the supply of molten material adjacent to the periphery of the rotating member.

    摘要翻译: 一种用于通过使用在其周边具有离散锯齿的旋转构件直接从熔融材料供应产生颗粒的方法和装置。 锯齿的前表面接触熔融材料,并将一部分推进到由锯齿表面形成的空腔中,同时在坝装置的表面的作用下,锯齿通过。 大坝装置被浸入与旋转构件的周边相邻的熔融材料的供应。

    Method and Apparatus for Manufacturing Low Melting Point Metal Fine Particles
    13.
    发明申请
    Method and Apparatus for Manufacturing Low Melting Point Metal Fine Particles 有权
    制造低熔点金属微粒的方法和装置

    公开(公告)号:US20090151511A1

    公开(公告)日:2009-06-18

    申请号:US11885677

    申请日:2005-03-09

    IPC分类号: B22F9/08

    摘要: In a solder paste which is a mixture of a flux and low melting point metal particles, low melting point metal fine particles manufactured by a conventional method or apparatus therefor include particles having widely varying particle diameters. Accordingly, the solder paste could not completely fill the minute holes in a mask for application to minute solder portions by printing, or mask removability was poor. According to the present invention, a mixture of a heat resistant continuous phase liquid and coarse metal particles in molten state is passed through a porous membrane to form the coarse low melting point metal particles into fine particles with a predetermined diameter. An apparatus according to the present invention comprise a porous membrane between a heating and dispersing mechanism and a cooling mechanism, and a pressure vessel connected to the heating and dispersing mechanism for applying a high pressure to the heating and dispersing mechanism.

    摘要翻译: 在焊剂和低熔点金属颗粒的混合物的焊膏中,通过常规方法或设备制造的低熔点金属微粒包括粒径变化很大的颗粒。 因此,焊膏不能完全填充掩模中的微孔,以通过印刷施加到微小的焊料部分,或者掩模可移除性差。 根据本发明,将耐热连续相液体和熔融状态的粗大金属粒子的混合物通过多孔膜,将粗低熔点金属粒子形成为规定直径的微粒。 根据本发明的装置包括加热和分散机构和冷却机构之间的多孔膜,以及连接到加热和分散机构的压力容器,用于向加热和分散机构施加高压。

    Method and apparatus for manufacturing minute metallic sphere
    14.
    发明授权
    Method and apparatus for manufacturing minute metallic sphere 失效
    用于制造微小金属球体的方法和装置

    公开(公告)号:US06926860B2

    公开(公告)日:2005-08-09

    申请号:US10237928

    申请日:2002-09-10

    摘要: A manufacturing method of minute metallic spheres of the present invention comprises a heating means for heating and melting a metal to form a metallic sphere, a measurement means for measuring the injected molten metal into a predetermined volume, and a cooling means for cooling the molten metal discharged from the measurement means, to a temperature less than the melting point. The measurement means has a gauger of a predetermined volume in which the molten metal is injected, and is constructed such that the molten metal is cut by rubbing by the predetermined volume by sliding this gauger in contact. The molten metal is injected in the gauger of the predetermined volume to measure, and the measured molten metal is discharged from the gauger to cool to a temperature less than the melting point, and solidified into a sphere in the cooling process.

    摘要翻译: 本发明的微小金属球的制造方法包括:加热熔融金属以形成金属球的加热装置,将注入的熔融金属测量为预定体积的测量装置和用于冷却熔融金属的冷却装置 从测量装置排出到低于熔点的温度。 测量装置具有预定体积的计量器,其中熔融金属被注入,并且被构造成使得熔融金属通过以接触的方式滑动该量规来摩擦预定体积而被切割。 将熔融金属注入预定体积的计量器中以测量,并将测量的熔融金属从量规器排出至冷却至低于熔点的温度,并在冷却过程中固化成球体。

    High density projectile
    15.
    发明授权
    High density projectile 失效
    高密度弹丸

    公开(公告)号:US5877437A

    公开(公告)日:1999-03-02

    申请号:US713090

    申请日:1996-09-16

    摘要: Numerous products can be formed by combining a low melting matrix made up of one or more metals and high melting, high density metal particles and wherein the products can be formed by adding the high density particles to a molten matrix metal and casting same, mixing powders of all the metals together, compacting and sintering at a temperature in the low end of the melting range of the matrix alloy, or by mixing the high density particles into a paste of the matrix alloy and molding. These methods and compositions are particularly adaptable for use in forming low or non-toxic high density projectiles, such as, shot, bullets and pellets having a density comparable to that of lead while avoiding problems of toxicity associated with the use of lead.

    摘要翻译: 可以通过组合由一种或多种金属和高熔点,高密度金属颗粒组成的低熔点基体形成许多产物,并且其中可以通过将高密度颗粒加入到熔融基体金属中并将其浇铸而形成产物,将粉末混合 的所有金属在一起,在基体合金的熔融范围的低端的温度下压实和烧结,或者通过将高密度颗粒混合成基质合金的糊料和模塑而成。 这些方法和组合物特别适用于形成具有与铅的密度相当的密度的低或无毒高密度弹丸,例如射精,子弹和丸粒,同时避免与使用铅相关的毒性问题。

    Gas atomizer for spray casting
    17.
    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

    摘要: 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.

    摘要翻译: 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。

    Process for the manufacture of steel balls, particularly balls for
rolling element bearings
    18.
    发明授权
    Process for the manufacture of steel balls, particularly balls for rolling element bearings 失效
    制造钢球的方法,特别是用于滚动体轴承的滚珠

    公开(公告)号:US4473514A

    公开(公告)日:1984-09-25

    申请号:US513338

    申请日:1983-07-13

    申请人: Vittorio Donn

    发明人: Vittorio Donn

    摘要: The process comprises at least a first phase for separating a plurality of particles of molten steel from a bath of molten steel, a second phase for subjecting these particles, while still in the fluid state, to a first system of forces acting on the outer surface of each of the said particles and to a second system of forces acting on each element of the body of each particle, the said two systems of forces being chosen in such a way that these forces tend to impart a substantially spherical form to each of the said particles, and a third phase for removing heat from the said particles sufficient to bring them substantially to the solid state.

    摘要翻译: 该方法至少包括用于从钢水浴中分离多个钢水颗粒的第一相,以及仍然处于流体状态的这些颗粒经受第二相作用于外表面的第一系统 的每个所述颗粒和作用在每个颗粒的主体的每个元件上的第二系统力,所述两个系统的力被选择为使得这些力倾向于将基本上呈球形的形式赋予每个颗粒 所述颗粒和用于从所述颗粒中除去足以使它们基本上达到固态的热的第三相。