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。

公开(公告)号：US6086688A

公开(公告)日：2000-07-11

申请号：US901800

申请日：1997-07-28

申请人： Don Allen Doutre ,  Iljoon Jin ,  David James Lloyd

发明人： Don Allen Doutre ,  Iljoon Jin ,  David James Lloyd

IPC分类号： C22C1/10 ,  C22C32/00 ,  F16D65/12 ,  F16D69/02 ,  C22C21/00 ,  F16D65/10

CPC分类号： F16D69/027 ,  C22C1/1036 ,  C22C32/0036 ,  F16D65/125 ,  B22F2998/00 ,  F16D2250/0007 ,  Y10T428/12486 ,  Y10T428/12736

摘要： A metal-matrix composite material includes a matrix having magnesium in an amount of more than about 0.3 weight percent but no more than about 2.5 weight percent, an alloying element of about 0.8 to about 2.5 weight percent iron or from about 1.0 to about 2.5 weight percent manganese, and the balance aluminum and impurities. Dispersed throughout the matrix is a plurality of metal oxide particles present in an amount of more than about 5 volume percent but no more than about 25 volume percent of the total volume of the matrix and the particles. This material may be cast into casting molds. After casting is complete and during solidification of the matrix alloy, a high volume fraction of intermetallic particles is crystallized in the matrix alloy. The total of the volume fractions of the metal oxide particles and the intermetallic particles is from about 10 to about 40 volume percent, preferably from about 25 to about 40 volume percent.

摘要翻译： 金属基质复合材料包括具有大于约0.3重量％但不超过约2.5重量％的镁的基体，约0.8至约2.5重量％的铁或约1.0至约2.5重量％的合金元素 百分数锰，余量为铝和杂质。 在整个基质中分散的是多个金属氧化物颗粒，其量以基体和颗粒总体积的大于约5体积％但不超过约25体积％。 这种材料可以铸造成铸模。 铸造完成后，在基质合金固化过程中，基体合金中大量的金属间化合物颗粒结晶。 金属氧化物颗粒和金属间化合物颗粒的体积分数的总和为约10至约40体积％，优选约25至约40体积％。

公开(公告)号：US5834928A

公开(公告)日：1998-11-10

申请号：US725001

申请日：1996-10-01

申请人： Don Allen Doutre

发明人： Don Allen Doutre

IPC分类号： G01N15/12 ,  G01N33/20 ,  G01N27/02

CPC分类号： G01N33/206 ,  G01N15/1218

摘要： A method and apparatus for detecting and measuring suspended solid particles in a molten metal, even if the metal also contains liquid and/or gaseous inclusions. The method involves moving molten metal through an orifice of predetermined hydrodynamic diameter provided in an electrically non-conductive barrier. As the molten metal is moved through the orifice, a current path is established by passing a current through the orifice from electrodes positioned on opposite sides of the barrier. Changes in voltage of the current are measured as the metal is drawn through the orifice, and the number of particles suspended in said metal drawn through the orifice is detected from the voltage changes. The metal, immediately before being moved through the orifice, is conveyed through a passage defined by an electrically non-conductive surface positioned in the current path, the passage including a region having a hydrodynamic diameter of between 2 and 10 times the hydrodynamic diameter of the orifice, at least a part of the region being of substantially constant hydrodynamic diameter. The provision of the passage upstream of the orifice has the effect of removing substantially all liquid and gaseous inclusions from the molten metal before the metal passes through the orifice.

摘要翻译： 用于检测和测量熔融金属中的悬浮固体颗粒的方法和装置，即使金属也含有液体和/或气体夹杂物。 该方法涉及将熔融金属移动通过设置在非导电屏障中的预定流体动力直径的孔。 当熔融金属通过孔口移动时，通过使电流通过位于屏障的相对侧上的电极的电流来建立电流通路。 当金属通过孔口被吸入时测量电流的电压变化，并且从电压变化中检测悬挂在通过孔口吸取的金属中的颗粒数量。 刚刚在通过孔口移动之前的金属通过由位于电流路径中的非导电表面限定的通道传送，该通道包括具有流体动力学直径为流体动力学直径的2至10倍的区域 孔的至少一部分具有基本恒定的流体动力学直径。 在孔口上游设置通道具有在金属通过孔口之前从熔融金属中去除基本上所有液体和气体夹杂物的作用。

公开(公告)号：US07562692B2

公开(公告)日：2009-07-21

申请号：US10532188

申请日：2003-10-24

申请人： Jean-Yves Fortin ,  Jacques Sheehy ,  Camil Jean ,  Paul Brisson ,  Uta Harnisch ,  Don Allen Doutre ,  Xiao-Guang Chen

发明人： Jean-Yves Fortin ,  Jacques Sheehy ,  Camil Jean ,  Paul Brisson ,  Uta Harnisch ,  Don Allen Doutre ,  Xiao-Guang Chen

IPC分类号： B22D19/14

CPC分类号： G21C19/40 ,  B22C9/22 ,  C22C1/026 ,  C22C1/1036 ,  C22C32/0057 ,  C22C2001/1047 ,  G21F1/08 ,  G21Y2002/10 ,  G21Y2004/10

摘要： A cast composite material is prepared by furnishing an aluminum-based matrix alloy and forming a mixture of free-flowing boron carbide particles and the aluminum-based matrix alloy in molten form which is stirred to wet the matrix alloy to the boron carbide particles and to distribute the particles throughout the volume of the melt. The molten mixture is then cast. The fluidity of the molten mixture is maintained by (a) maintaining the magnesium content of the matrix metal below about 0.2% by weight, or (b) starting with a matrix metal containing less than 0.2% by weight magnesium and adding further magnesium to the mixture a short time before casting, or (c) having at least 0.2% by weight titanium present in the mixture.

摘要翻译： 通过提供铝基基质合金并形成熔融形式的自由流动的碳化硼颗粒和铝基基质合金的混合物来制备铸造复合材料，所述铝基基体合金被搅拌以将基体合金润湿至碳化硼颗粒，并且 将颗粒分散在整个体积的熔体中。 然后浇铸熔融混合物。 熔融混合物的流动性通过（a）将基质金属的镁含量维持在约0.2重量％以下来维持，或（b）从含有小于0.2重量％的镁的基质金属开始，并向镁 混合物在铸造之前很短时间，或（c）在混合物中存在至少0.2重量％的钛。