公开(公告)号：US5738705A

公开(公告)日：1998-04-14

申请号：US560711

申请日：1995-11-20

申请人： Iver E. Anderson ,  Matthew G. Osborne ,  Robert L. Terpstra

发明人： Iver E. Anderson ,  Matthew G. Osborne ,  Robert L. Terpstra

IPC分类号： B22F9/08 ,  B22F9/10

CPC分类号： B22F9/08

摘要： Method and apparatus for making metallic powder particles wherein a metallic melt is atomized by a rotating disk or other atomizer at an atomizing location in a manner to form molten droplets moving in a direction away from said atomizing location. The atomized droplets pass through a series of thin liquid quenching sheets disposed in succession about the atomizing location with each successive quenching sheet being at an increasing distance from the atomizing location. The atomized droplets are incrementally cooled and optionally passivated as they pass through the series of liquid quenching sheets without distorting the atomized droplets from their generally spherical shape. The atomized, cooled droplets can be received in a chamber having a collection wall disposed outwardly of the series of liquid quenching sheets. A liquid quenchant can be flowed proximate the chamber wall to carry the cooled atomized droplets to a collection chamber where atomized powder particles and the liquid quenchant are separated such that the liquid quenchant can be recycled.

摘要翻译： 制造金属粉末颗粒的方法和装置，其中金属熔体在雾化位置由旋转盘或其它雾化器雾化，以形成沿远离雾化位置的方向移动的熔融液滴。 雾化的液滴通过一系列薄的液体淬火片，其连续地布置在雾化位置处，每个连续的淬火片处于与雾化位置相距增加的距离。 雾化的液滴被逐渐冷却，并且当它们通过一系列液体淬火片时可选地钝化，而不会使雾化的液滴从其大致球形的形状变形。 雾化的冷却液滴可以被容纳在具有设置在一系列液体淬火片的外部的收集壁的腔室中。 液体淬灭剂可以在室壁附近流动，以将冷却的雾化液滴携带到收集室，其中雾化的粉末颗粒和液体淬火剂被分离，使得液体淬灭剂可以再循环。