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    Methods for reducing carbon contamination when melting highly reactive alloys
    4.
    发明公开
    Methods for reducing carbon contamination when melting highly reactive alloys 审中-公开
    一种用于熔化高活性合金时降低碳污染的方法

    公开(公告)号：EP1947203A1

    公开(公告)日：2008-07-23

    申请号：EP07122372.1

    申请日：2007-12-05

    申请人： General Electric Company

    发明人： Kelly, Thomas Joseph ,  Weimer, Michael James ,  Bewlay, Bernard Patrick ,  Gigliotti, Jr., Michael Francis Xavier

    IPC分类号： C22C1/00

    CPC分类号： C22C14/00 ,  F27B14/10

    摘要： Methods for reducing carbon contamination when melting highly reactive alloys involving providing a graphite crucible (10) having an interior (12), applying at least a first protective layer (16) to the interior (12) of the graphite crucible (10), placing a highly reactive alloy into the crucible (10) having the first protective layer (16), and melting the highly reactive alloy to obtain a melted alloy having reduced carbon contamination.

    摘要翻译： 用于降低碳污染当熔化涉及提供具有内（12）的石墨坩埚（10）的高反应性的合金，施加至少第一保护层（16）的内部（12）的石墨坩埚（10）的，放置方法 反应性高的合金为具有所述第一保护层（16），并且熔融所述高反应性的合金以得到熔融的合金在坩埚（10），其具有降低的碳污染。

    Method for forming an article extension by casting using a ceramic mold
    7.
    发明授权
    Method for forming an article extension by casting using a ceramic mold 失效
    一种用于生产通过使用陶瓷铸模铸造制造的附接过程

    公开(公告)号：EP0815993B1

    公开(公告)日：2001-01-24

    申请号：EP97304567.7

    申请日：1997-06-26

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Jackson, Melvin Robert ,  Bewlay, Bernard Patrick ,  Ritter, Ann Melinda

    IPC分类号： B22D27/04 ,  B22D19/10 ,  C30B11/00 ,  C30B29/52

    CPC分类号： B22D27/045 ,  B22D19/10 ,  C30B11/00 ,  C30B29/52 ,  Y10T29/49318

    摘要： A method for forming integral extensions on the end (4) of directionally oriented, superalloy articles (2), such as airfoil blading members or other components used in gas turbine or other turbine engines. An extension is formed directly on an article by casting a compatible molten material (26) from a reservoir (80) into a ceramic mold (16) that is attached on an end of the article, followed by cooling of the end under controlled conditions sufficient to cause an integral extension to solidify on the article. A ceramic mold is utilized over the end of the article, with a mold cavity that generally defines the shape of the extension to be formed. The mold may be formed in situ on the mandrel, or preformed and attached to the subject article over the madrel. Extensions formed by the method of this invention have a microstructure that is continuous and compatible with that of the article. Such microstructures may include epitaxial growth of the extension from the microstructure of the article. The method establishes a temperature gradient within the article during solidification that may be further controlled by auxiliary heating and/or cooling of the article and/or extension during the practice of the method.

    Method for forming an article extension by melting of a mandrel in a ceramic mold
    8.
    发明公开
    Method for forming an article extension by melting of a mandrel in a ceramic mold 失效
    一种用于通过在一个陶瓷铸型熔化心轴产生附着过程

    公开(公告)号：EP0815991A1

    公开(公告)日：1998-01-07

    申请号：EP97304565.1

    申请日：1997-06-26

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Bewlay, Bernard Patrick ,  Jackson, Melvin Robert ,  Ritter, Ann Melinda

    IPC分类号： B22D27/04 ,  B22D19/10 ,  C30B11/00 ,  C30B29/52

    CPC分类号： B22D23/06 ,  B22D19/10 ,  B23P6/007 ,  C30B11/00 ,  C30B29/52 ,  Y10T29/49318

    摘要： A method for forming integral extensions on the end (4) of directionally oriented, superalloy articles (2), such as airfoil blading members or other components used in gas turbine or other turbine engines. An extension is formed directly on an article by melting a portion or end of the article having an attached integral mandrel (12) within a ceramic mold (16), followed by cooling of the end under controlled conditions sufficient to cause an integral extension to solidify on the article. A ceramic mold is attached on the end of the article over the integral mandrel with a mold cavity that generally defines the shape of the extension to be formed. The mold may be formed in situ on the mandrel, or preformed and attached to the subject article over the mandrel. Extensions formed by the method of this invention have a microstructure that is continuous and compatible with that of the article. Such microstructures may include epitaxial growth of the extension from the microstructure of the article. The method establishes a temperature gradient within the article during solidification that may be further controlled by auxiliary heating and/or cooling of the article and/or extension during the practice of the method.

    摘要翻译： 一种用于在整体延伸上提供至制品的方法包括：选择第（100）包括延伸端的分机键合表面和由所述横截面形状定义的外表面。 所述延伸端部，从而具有超级合金组合物和定向取向的晶体结构。 的心轴（200）附连到延伸接合面。 所述心轴具有一个横截面形状所做的是与延伸端部的横截面形状和兼容于外表面确实连通与延伸部的外表面。 因此，该心轴具有与合金组合物所做的是与超级合金组合物相容。 陶瓷模具（300）被形成在所述芯轴的外表面和延伸端部的外表面的一部分。 模具具有空腔的形状并通过心轴定义和限定所述整体延伸的形状。 心轴通过应用外部加热手段，文章，心轴和模具在受控条件下熔融之前或在熔融过程中被定向所以没有熔融心轴接触所述扩展键合表面，足够长的时间，以允许延伸部接合 表面由被加热并与熔融心轴作为显微组织生长种子相互作用。 所述延伸端部（700）控制的热条件下冷却，以使熔融的心轴以固化上生长种子，在它们之间界面没有从延伸接合表面移动到熔融心轴，如在整体延伸那样个符合 所述模腔的形状，并具有微观结构确实是与延伸端的微观结构相兼容。 受控热条件包括维持检查的物品内的温度梯度所做的温度最高处的界面和物品从界面的距离增加的函数内减小。 所以声称是到文章提供有关整体扩展的第二种方法。

    Titanium aluminide article with improved surface finish
    9.
    发明公开
    Titanium aluminide article with improved surface finish 有权
    Titanaluminidgegenstand mit verbesserterOberflächenbearbeitung

    公开(公告)号：EP2628568A1

    公开(公告)日：2013-08-21

    申请号：EP13155416.4

    申请日：2013-02-15

    申请人： General Electric Company

    发明人： Bewlay, Bernard Patrick ,  Janssen, Jonathan Sebastian ,  Wei, Bin ,  Zhou, Youdong

    IPC分类号： B24C1/04

    CPC分类号： B24C1/04

    摘要： Titanium-containing articles having improved surface finishes and methods for changing the surface of titanium containing articles, for example by removing overstock, are provided. One example method includes passing a fluid at high pressure across a surface of an titanium aluminide alloy-containing article, for example, a turbine blade, at high linear speed and deforming the surface of the titanium aluminide alloy-containing article, and removing material from the surface of the titanium aluminide alloy-containing article. Though aspects of the invention can be used in fabricating high performance turbine blades, the methods disclosed can be applied to the treatment of any titanium-containing article for which it is difficult to obtain an improved surface finish.

    摘要翻译： 提供了具有改进的表面光洁度的含钛制品和用于改变含钛制品的表面的方法，例如通过去除过量的材料。 一个示例性方法包括使流体在高压下穿过含钛铝化物合金的制品例如涡轮叶片的表面以高线速度流动并使含钛铝合金的制品的表面变形，并且从 含钛铝合金的制品的表面。 尽管本发明的方面可以用于制造高性能涡轮叶片，但是所公开的方法可以应用于难以获得改进的表面光洁度的任何含钛制品的处理。