公开(公告)号：US4295808A

公开(公告)日：1981-10-20

申请号：US85155

申请日：1979-10-15

申请人： Herbert Stephan ,  Hans Aichert ,  Joseph Heimerl

发明人： Herbert Stephan ,  Hans Aichert ,  Joseph Heimerl

IPC分类号： B22F9/08 ,  B05B7/16 ,  B22F9/10 ,  B22F9/14 ,  B22F9/00

CPC分类号： B22F9/14 ,  B22F9/10 ,  B22F2009/084

摘要： High-purity metal powder is made by the electron beam melting of a starting material in rod form in a vacuum wherein the molten metal is momentarily caught on a spinning plate rotating at high speed and flung therefrom and thereafter solidified by cooling. The metal on the spinning plate is bombarded with an electron beam that is so focused and periodically deflected that its focal spot is many times smaller than the diameter of the spinning plate. The beam deflection between the rotational center of the spinning plate and its marginal area is performed such that the spinning plate is scanned in a zone that extends radially of the axis of rotation of the spinning plate and is small in relation to its diameter. Cooling of the metal particles to the point of solidification is accomplished by radiation loss.

摘要翻译： 通过在真空中以棒状的原料电子束熔融形成高纯度金属粉末，其中熔融金属被瞬间捕获在高速旋转并从其中溅出的纺丝板上，然后通过冷却固化。 纺丝板上的金属被电子束轰击，电子束如此聚焦并周期性地偏转，使其焦斑比纺丝板的直径小许多倍。 进行纺丝板的旋转中心与其边缘区域之间的梁偏转，使得纺丝板在纺丝板的旋转轴线的径向延伸的区域中扫描，并且相对于其直径小。 将金属颗粒冷却至凝固点是通过辐射损失来实现的。

公开(公告)号：US4218410A

公开(公告)日：1980-08-19

申请号：US902475

申请日：1978-05-03

申请人： Herbert Stephan ,  Hans Aichert ,  Joseph Heimerl

发明人： Herbert Stephan ,  Hans Aichert ,  Joseph Heimerl

IPC分类号： B22F9/10 ,  B22F9/14 ,  B22D23/08

CPC分类号： B22F9/10 ,  B22F9/14 ,  B22F2009/084

摘要： High-purity metal powder is made by the electron beam melting of a starting material in rod form in a vacuum wherein the molten metal is momentarily caught on a spinning plate rotating at high speed and flung therefrom and thereafter solidified by cooling. The metal on the spinning plate is bombarded with an electron beam that is so focused and periodically deflected that its focal spot is many times smaller than the diameter of the spinning plate. The beam deflection between the rotational center of the spinning plate and its marginal area is performed such that the spinning plate is scanned in a zone that extends radially of the axis of rotation of the spinning plate and is small in relation to its diameter. Cooling of the metal particles to the point of solidification is accomplished by radiation loss.

摘要翻译： 通过在真空中以棒状的原料电子束熔融形成高纯度金属粉末，其中熔融金属被瞬间捕获在高速旋转并从其中溅出的纺丝板上，然后通过冷却固化。 纺丝板上的金属被电子束轰击，电子束如此聚焦并周期性地偏转，使其焦斑比纺丝板的直径小许多倍。 进行纺丝板的旋转中心与其边缘区域之间的梁偏转，使得纺丝板在纺丝板的旋转轴线的径向延伸的区域中扫描，并且相对于其直径小。 将金属颗粒冷却至凝固点是通过辐射损失来实现的。