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18 条记录 (耗时 0.026 秒)

    Elimination of shrinkage cavity in cast ingots
    2.
    发明授权
    Elimination of shrinkage cavity in cast ingots 有权
    消除铸锭中的收缩腔

    公开(公告)号：US08347949B2

    公开(公告)日：2013-01-08

    申请号：US13333469

    申请日：2011-12-21

    申请人： Mark Anderson ,  Todd F. Bischoff ,  James Boorman ,  Wayne J. Fenton ,  David Sinden ,  John Steven Tingey ,  Robert Bruce Wagstaff

    发明人： Mark Anderson ,  Todd F. Bischoff ,  James Boorman ,  Wayne J. Fenton ,  David Sinden ,  John Steven Tingey ,  Robert Bruce Wagstaff

    IPC分类号： B22D11/049

    CPC分类号： B22D11/049 ,  B22D11/10 ,  B22D11/18 ,  B22D11/185 ,  B22D11/186 ,  B22D19/10 ,  B22D41/18

    摘要： An exemplary embodiment provides a method of eliminating a shrinkage cavity in a metal ingot cast by direct chill casting. The method involves casting an upright ingot having an upper surface at an intended height. Upon completion of the casting, the lower tip of the spout is maintained below the molten metal near the center of the upper surface. The metal flow through the spout is terminated and a partial shrinkage cavity is allowed to form as metal of the ingot shrinks and contracts. Before the partial cavity exposes the lower tip of the spout, the cavity is preferably over-filled with molten metal, while avoiding spillage of molten metal, and then the flow of metal through the spout is terminated. These steps are repeated until no further contraction of the metal causes any part of the upper surface to contract below the intended ingot height.

    摘要翻译： 示例性实施例提供了一种通过直接冷却铸造来消除铸造金属铸锭中的收缩腔的方法。 该方法包括将具有上表面的竖直铸锭铸造在预期高度。 铸造完成时，喷嘴的下端保持在靠近上表面中心的熔融金属的下方。 通过喷口的金属流动被终止，并且允许部分收缩腔形成为金属的锭收缩并收缩。 在部分腔体暴露喷嘴的下端之前，优选地，空腔被熔融金属过度填充，同时避免熔融金属的溢出，然后终止通过喷嘴的金属流。 重复这些步骤，直到金属的进一步收缩导致上表面的任何部分收缩到低于预期的锭高度。

    Oxide restraint during co-casting of metals
    3.
    发明授权
    Oxide restraint during co-casting of metals 有权
    金属共铸期间的氧化物约束

    公开(公告)号：US08336603B2

    公开(公告)日：2012-12-25

    申请号：US12454655

    申请日：2009-05-21

    申请人： Todd F. Bischoff ,  Randy Womack ,  Wayne J. Fenton ,  Robert Bruce Wagstaff ,  Lawrence G. Hudson

    发明人： Todd F. Bischoff ,  Randy Womack ,  Wayne J. Fenton ,  Robert Bruce Wagstaff ,  Lawrence G. Hudson

    IPC分类号： B22D11/00 ,  B22D11/12 ,  B22D11/124

    CPC分类号： B22D11/007 ,  B22D7/02 ,  B22D7/08 ,  B22D43/001 ,  B22D43/007

    摘要： A method and apparatus is disclosed for casting a composite ingot made of metals that are susceptible to surface oxide formation when molten. The method involves co-casting at least two metal layers from at least two molten metal pools formed within a direct chill casting apparatus. During the casting operation, movement of metal oxide formed on the upper surface of at least one of the pools towards an edge of the pool is restrained by an oxide skimmer positioned close to an edge of the pool above an external surface or metal-metal interface of the ingot. The apparatus provides a DC caster with at least one oxide skimmer that operates in this manner.

    摘要翻译： 公开了一种用于铸造由金属制成的复合锭的方法和装置，其在熔融时易于形成表面氧化物。 该方法包括从形成在直接冷却铸造装置内的至少两个熔融金属池共铸铸造至少两个金属层。 在铸造操作期间，形成在至少一个池的上表面上的金属氧化物的移动朝向池的边缘通过在外表面或金属 - 金属界面上靠近池的边缘定位的氧化物分离器来限制 的锭。 该设备提供具有至少一个以这种方式操作的氧化物分选机的DC脚轮。

    Casting composite ingot with metal temperature compensation
    6.
    发明授权
    Casting composite ingot with metal temperature compensation 有权
    铸造复合锭与金属温度补偿

    公开(公告)号：US08418748B2

    公开(公告)日：2013-04-16

    申请号：US12931724

    申请日：2011-02-09

    申请人： Robert Bruce Wagstaff ,  Aaron David Sinden ,  Todd F. Bischoff ,  Eric Ball ,  Jeff McDermott

    发明人： Robert Bruce Wagstaff ,  Aaron David Sinden ,  Todd F. Bischoff ,  Eric Ball ,  Jeff McDermott

    IPC分类号： B22D11/00 ,  B22D11/16

    CPC分类号： B22D11/007 ,  B22D2/006 ,  B22D11/182 ,  B22D11/202 ,  B22D11/22

    摘要： An exemplary embodiment of the invention provides a method of direct chill casting a composite metal ingot. The method involves sequentially casting two or more metal layers to form a composite ingot by supplying streams of molten metal to two or more casting chambers within a casting mold of a direct chill casting apparatus. Inlet temperatures of one or more of the streams of molten metal are monitored at a position adjacent to an inlet of a casting chamber fed with the stream, and the inlet temperatures are compared with a predetermined set temperature for the stream to determine if there is any difference. A casting variable that affects molten metal temperatures entering or within the casting chambers (e.g. casting speed) is then adjusted by an amount based on the difference of the compared temperatures to eliminate adverse casting effects caused by the difference of the inlet temperature and the set temperature. Preferably an adjustment is selected that causes the monitored temperature to approach the set temperature. Another exemplary embodiment provides equipment for operation of the method.

    摘要翻译： 本发明的示例性实施例提供了一种直接冷却铸造复合金属锭的方法。 该方法包括顺序地浇铸两个或更多个金属层以通过将熔融金属流供应到直接冷却铸造设备的铸模内的两个或多个铸造室中而形成复合锭。 一个或多个熔融金属流的入口温度在与流入的流化室的入口相邻的位置处被监测，并且将入口温度与流的预定设定温度进行比较，以确定是否存在 区别。 然后调整影响进入或流入铸造室内的熔融金属温度（例如铸造速度）的铸造变量，该量基于比较温度的差值，以消除由入口温度和设定温度的差引起的不利铸造效应 。 优选地，选择使所监视的温度接近设定温度的调节。 另一示例性实施例提供了用于该方法的操作的设备。