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公开(公告)号：EP2532457A2
公开(公告)日：2012-12-12
申请号：EP12170605.5
申请日：2012-06-01
IPC分类号： B22C9/10
CPC分类号： B22C9/103
摘要： A hybrid core assembly (46) for a casting process includes a ceramic core portion (48), a refractory metal core portion (50) and a plate (62) positioned between the ceramic core portion (48) and the refractory metal core portion (50). The ceramic core portion (48) includes a trough (56). A portion of the refractory metal core portion (50) is received in the trough (56).
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公开(公告)号：EP2489451A2
公开(公告)日：2012-08-22
申请号：EP12153434.1
申请日：2012-02-01
发明人： Bochiechio, Mario P. , Kraemer, Dennis M. , Lebrun, Robert E. , Zamjohn, Paul R. , Roohr, Charles A. , Kozaczuk, Kerry , Garrison, Roy A. , Bullied, Steven J. , Marcin, John Joseph , Verner, Carl R. , Blondin, John F. , Bartholomew, Mark F. , Ristau, Raymond P. , Chittenden, Kevin W. , Tamiso, Gary M. , Renaud, Robert C.
CPC分类号： B22D25/02 , B22D17/02 , B22D17/14 , B22D17/145 , B22D17/2076 , B22D17/22 , B22D17/28 , B22D17/30 , B22D29/00 , B22D31/002 , B22D47/00
摘要： A die casting system (10) includes a die cavity (20), a shot tube (24), a melting system (32) and a vacuum system (34). The shot tube (24) is in fluid communication with the die cavity (20) and can deliver a charge of material thereto. The melting system (32) is positioned adjacent to the die cavity (20), and the vacuum system defines a first chamber (C1) and a second chamber (C2) separated from the first chamber (c1) by an isolation valve (36). The melting system (32) is disposed within the first chamber (C1), and the die cavity (20) is disposed within the second chamber (C2).
The die casting system can be part of a die casting cell, which also includes a mechanism which accesses the die cavity through an isolation valve and at least one post-cast station for performing a secondary operation. The invention also extends to a method of manufacturing a component in such a die casting system.-
公开(公告)号：EP2450131A2
公开(公告)日：2012-05-09
申请号：EP11187814.6
申请日：2011-11-04
IPC分类号： B22D17/28
摘要： A die casting system includes a die (112), a shot tube (124), a shot tube plunger (128) and a melting unit (132). The die (112) includes a plurality of die components that define a die cavity (120). The shot tube (124) is in fluid communication with the die cavity (120). The shot tube plunger (128) is moveable within the shot tube (124) to communicate a charge of material into the die cavity (120). The melting unit (46) is positioned relative to the die (112) and includes a bottom portion (42) having an opening (58) for selectively releasing a charge of material through the bottom portion (42).
摘要翻译： 压铸系统包括模具（112），喷射管（124），喷射管柱塞（128）和熔化单元（132）。 模具（112）包括限定模腔（120）的多个模具部件。 喷射管（124）与模腔（120）流体连通。 喷射管柱塞128可以在喷射管124内移动，以将物料进入模腔120。 熔化单元（46）相对于模具（112）定位并且包括具有用于选择性地释放通过底部（42）的材料的电荷的开口（58）的底部（42）。
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公开(公告)号：EP2233228A1
公开(公告)日：2010-09-29
申请号：EP10250284.6
申请日：2010-02-18
CPC分类号： B22D27/045 , B22D27/02
摘要： An induction heated furnace assembly (10) for producing a directionally solidified casting includes a susceptor (22) that tailors strength of the magnetic field within the chamber (12) to provide a desired grain structure in a completed cast part. The susceptor (22) proportionally blocks portions of the magnetic field to provide different levels of magnetic stirring within the molten material at different locations within the furnace assembly (10) so as to create the desired grain structures in the completed cast article. The susceptor (22) may have a varying wall thickness as shown. In another embodiment it may have an open area which varies. In a yet further embodiment, the strength of the magnetic field produced by the induction coil may be varied.
摘要翻译： 用于产生定向凝固铸件的感应加热炉组件（10）包括一个基座（22），该基座（22）可以调节腔室（12）内的磁场强度，以在完成的铸件中提供所需的晶粒结构。 基座（22）成比例地阻挡磁场的一部分，以在炉组件（10）内的不同位置处在熔融材料内提供不同程度的磁力搅拌，以便在完成的铸造制品中产生期望的晶粒结构。 如图所示，基座（22）可具有变化的壁厚。 在另一个实施例中，其可以具有变化的开放区域。 在又一实施例中，由感应线圈产生的磁场的强度可以变化。
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25.发明公开Process for casting columnar grain airfoil with preferential primary orientation 审中-公开铸造具有优选主对准柱状晶粒的翼的方法
公开(公告)号：EP2182098A3
公开(公告)日：2010-08-04
申请号：EP09252356.2
申请日：2009-10-02
发明人： Bullied, Steven J. , Verner, Carl R. , Bochiechio, Mario P. , Marcin, John Joseph , Chittenden, Kevin W.
摘要： A molding process utilizes a seed (28) with a columnar grain structure for defining a desired grain structure in a completed casting. The seed is received within a seed cavity of a mold (20). The molten material adopts the orientation of the columns (30) defined within the seed during solidification to form a completed molded article having a desired columnar grain structure.
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公开(公告)号：EP0251983B1
公开(公告)日：1989-11-23
申请号：EP87630113.6
申请日：1987-06-25
发明人： Henricks, Robert Jacobi , Marcin, John Joseph , Wahl, Jacqueline Burns , Pinkowish, Alexander Alfons
摘要： A coated nickel base superalloy single crystal turbine airfoil, blade (1), which is subject to gas turbine engine operation, can crack during refurbishment by a stress corrosion mechanism when exposed to certain corrosive media. The rapid thermal cycling that occurs during typical gas turbine engine operation results in high, non-uniform stresses across the airfoil, producing large localized residual strains in the article at ambient temperatures. Exposure to a corrosive environment, such as during coating removal or agressive cleaning, can produce chordwise cracks in a large number of the airfoils exposed. Such cracking is avoided by subjecting the articles to a preliminary stress relieving heat treatment which reduces the residual strains to a level below which cracking will not occur, prior to exposure to the corrosive media.
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