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2. 发明公开

EP2777842A1 Cast-in cooling features especially for turbine airfoils 有权
标题翻译： UMGOSSENEKÜHLKONFIGURATIONINSBESONDEREFÜRTURBINENSCHAUFELN
公开(公告)号：EP2777842A1
公开(公告)日：2014-09-17
申请号：EP14158655.2
申请日：2014-03-10
申请人： Howmet Corporation
发明人： Mueller, Boyd A. , Pepper, Michael A. , Rogers, Darren K. , Cole, Gail R.
IPC分类号： B22C7/02 , B22C9/04 , B22C9/10 , B22C21/14
CPC分类号： F01D5/187 , B22C7/02 , B22C9/04 , B22C9/10 , B22C21/14 , F01D5/186
摘要： A method is provided for making a mold for casting advanced turbine airfoils (e.g. gas turbine blade and vane castings) which can include complex internal and external air cooling features to improve efficiency of airfoil cooling during operation in the gas turbine hot gas stream. The method steps involve incorporating at least one fugitive insert in a ceramic material in a manner to form a core and at least a portion of an integral, cooperating mold wall wherein the core defines an internal cooling feature to be imparted to the cast airfoil and the at least portion of the mold wall has an inner surface that defines an external cooling feature to be imparted to the cast airfoil, selectively removing the fugitive insert, and incorporating the core and the at least portion of the integral, cooperating mold wall in a mold for receiving molten metal or alloy cast in the mold.
摘要翻译：提供了一种用于制造用于铸造先进涡轮机翼（例如燃气轮机叶片和叶片铸件）的模具的方法，其可以包括复杂的内部和外部空气冷却特征，以在燃气轮机热气流中操作期间提高翼型件冷却效率。方法步骤包括以一种形成芯和至少一部分整体配合的模具壁的方式将陶瓷材料中的至少一个短片插入件结合在一起，其中所述芯限定要施加到铸造翼型件的内部冷却特征，模具壁的至少部分具有内表面，其限定要施加到铸造翼型件的外部冷却特征，选择性地移除短暂插入物，并且将芯部和整体配合的模具壁的至少一部分结合在模具中用于接收在模具中铸造的熔融金属或合金。

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