Apparatus and method for plating coatings on to fine powder materials and use of the powder therefrom
    9.
    发明授权
    Apparatus and method for plating coatings on to fine powder materials and use of the powder therefrom 失效
    将涂层镀覆在细粉末材料上并从其中使用粉末的装置和方法

    公开(公告)号:US06322685B1

    公开(公告)日:2001-11-27

    申请号:US09078043

    申请日:1998-05-13

    IPC分类号: C25D1716

    CPC分类号: C25D17/18 H05K3/321

    摘要: A method using an electrically nonconductive cathode chamber with at least part of its wall area rendered permeable to ions and electrolytic solutions; premixing a predetermined quantity of an electroconductive powder and a first electroplating solution; filling the cathode chamber with the solution/powder mixture and a plurality of electroconductive spheres; disposing an electroconductive cathode ball connection in contact with the spheres and powder particles; securing the cathode chamber to a cap which is part of a rotary assembly that allows the rotation of the cathode chamber about its axis without twisting the aforementioned cathode ball connection positioned within said chamber; placing the cathode chamber within an anode chamber containing a second electroplating solution and an anode; rotating the cathode chamber on its axis using the rotary assembly; biasing the anode with a positive voltage in reference to the cathode ball connection causing the electroplating of a metallic coating on the surface of the said powder while it is tumbled within the rotating cathode chamber; and rinsing, cleaning, and optionally ball milling the mixture of plated powder particles and the spheres to enable easy recovery of the plated powder.

    摘要翻译: 一种使用非导电阴极室的方法,其至少部分壁面对离子和电解液是可渗透的; 预混合预定量的导电粉末和第一电镀溶液; 用溶液/粉末混合物填充阴极室和多个导电球体; 设置与球体和粉末颗粒接触的导电阴极球连接; 将阴极室固定到帽子,帽子是旋转组件的一部分,其允许阴极室围绕其轴线旋转,而不会扭转位于所述腔室内的上述阴极球连接件; 将阴极室放置在包含第二电镀溶液和阳极的阳极室内; 使用旋转组件将阴极室旋转在其轴上; 相对于阴极球连接,以正电压偏压阳极,导致在旋转的阴极室内翻滚时所述粉末的表面上的金属涂层的电镀; 以及漂洗,清洁和可选地将电镀粉末颗粒和球体的混合物球磨,以便容易地回收镀覆的粉末。