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12. 发明授权

US5827982A Portable liquid metal filtration device for inclusion analysis 失效
标题翻译：便携式液态金属过滤装置进行夹杂分析
公开(公告)号：US5827982A
公开(公告)日：1998-10-27
申请号：US810152
申请日：1997-02-25
申请人： Don Allen Doutre , Gary Hay , Peter Alexander Wales
发明人： Don Allen Doutre , Gary Hay , Peter Alexander Wales
IPC分类号： F27D3/14 , F27D21/00 , G01N1/28 , G01N33/20 , G01N1/00 , C21B3/04 , G01N11/00
CPC分类号： G01N1/4077 , F27D21/00 , F27D3/14 , G01N33/206
摘要： A device for measuring metal purity, comprising a receptacle for holding a sample of molten metal, the receptacle being made, at least internally, from an insulating refractory material and having a bottom wall provided with a hole containing a filter element. The bottom wall is substantially impermeable to air except at the hold. An enclosed collection vessel is positioned below the receptacle for collecting molten metal which passes through the filter element from the receptacle, the collection vessel having an opening permitting extraction of gas from within the vessel to enable a vacuum to be generated within the vessel during use of the device. A leak-tight seal is established between the receptacle for molten metal and the collection vessel to permit vacuum generated in the collection vessel to draw molten metal into the collection vessel from the receptacle through the filter. The receptacle for molten metal has a heat diffusivity value that is sufficiently low that, in use, the temperature of the molten metal in the receptacle does not fall below the liquidus temperature in a period of time required for the vacuum to draw a fixed amount of molten metal sufficient for metal purity testing purposes through the filter and into the collection vessel from the receptacle. The invention also relates to a corresponding method, and to novel parts of the device.
摘要翻译：一种用于测量金属纯度的装置，包括用于保持熔融金属样品的容器，所述容器至少在内部由绝缘耐火材料制成，并且具有设置有包含过滤元件的孔的底壁。除了保持之外，底壁基本上不可透过空气。封闭的收集容器位于容器下面，用于收集从容器通过过滤元件的熔融金属，收集容器具有允许从容器内提取气体的开口，以使得在使用期间能够在容器内产生真空装置。在用于熔融金属的容器和收集容器之间建立密封密封，以允许在收集容器中产生的真空从容器通过过滤器将熔融金属吸入收集容器中。用于熔融金属的容器具有足够低的热扩散率值，在使用中，容器中的熔融金属的温度在真空抽取固定量的时间段内不会低于液相线温度熔融金属足以通过过滤器进行金属纯度测试，并从容器进入收集容器。本发明还涉及相应的方法以及该装置的新颖部分。

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