公开(公告)号：US5273102A

公开(公告)日：1993-12-28

申请号：US988362

申请日：1992-12-09

申请人： Robert D. Lillquist ,  Charles B. Adasczik ,  Gordon B. Hunter ,  Richard G. Menzies

发明人： Robert D. Lillquist ,  Charles B. Adasczik ,  Gordon B. Hunter ,  Richard G. Menzies

IPC分类号： B22D11/11 ,  B22D23/06 ,  B22D11/16 ,  B22D27/02

CPC分类号： B22D11/11 ,  B22D23/06

摘要： A method and apparatus for casting a molten metallic material in ingot form are provided wherein the molten metallic material is transported to the ingot mold and an upper surface temperature and temperature distribution of the molten metal pool in the casting mold are measured by an imaging radiometer which is disposed external to a vacuum chamber enclosing the ingot mold, and is disposed to view the ingot pool surface through a sight port. At least one electron beam gun is employed to direct a stream of electrons at the ingot pool surface, the intensity of which is selectively modulated and the impingement of the stream of electrons is simultaneously selectively positioned in order to maintain a desired preselected mold pool surface temperature and temperature distribution thereby yielding a preselected metallurgical structure in the solidified ingot. The imaging radiometer may provide a video signal as an output, and may be connected to a video analyzer and video monitor which are used to provide an image of the surface temperature and temperature distribution, enabling an operator to control the electron beam gun in performing the ingot casting method.

摘要翻译： 提供一种用于铸造锭状熔融金属材料的方法和装置，其中熔融的金属材料被输送到锭铸模，并且通过成像辐射计测量铸模中的熔融金属池的上表面温度和温度分布， 设置在包围铸锭模具的真空室的外部，并且设置成通过视口观察铸锭池表面。 使用至少一个电子束枪来引导晶锭池表面的电子流，其强度被选择性地调制并且电子流的冲击同时被选择性地定位，以便保持期望的预选模具池表面温度 和温度分布，从而在固化锭中产生预选的冶金结构。 成像辐射计可以提供视频信号作为输出，并且可以连接到用于提供表面温度和温度分布的图像的视频分析仪和视频监视器，使得操作者能够控制电子束枪执行 锭铸造方法。