公开(公告)号：US20140238632A1

公开(公告)日：2014-08-28

申请号：US13780763

申请日：2013-02-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Xi Yang ,  Martin Kin-Fei Lee ,  Sylvia Marie Decarr ,  Norbert Otto Maurer

IPC: B22C9/10

CPC classification number: B22C9/10 ,  B22C1/205

Abstract: A method is provided for repairing defects in a ceramic core adapted for use in a casting process. The ceramic core is formed from a slurry comprising at least one refractory powder material suspended in a liquid vehicle. The method includes forming a repair mixture comprising a liquid diluent and the at least one refractory powder material suspended in the liquid vehicle of the slurry. The repair mixture is applied to a region of the ceramic core that includes at least one defect and then the ceramic core is fired to burn off the liquid vehicle in the repair mixture and form a ceramic composition that closes the defect.

Abstract translation: 提供了一种用于修复适于在铸造工艺中使用的陶瓷芯中的缺陷的方法。 陶瓷芯由包含悬浮在液体载体中的至少一种耐火粉末材料的浆料形成。 该方法包括形成包含液体稀释剂和悬浮在浆液的液体载体中的至少一种耐火材料粉末的修复混合物。 将修复混合物施加到包括至少一个缺陷的陶瓷芯的区域，然后烧制陶瓷芯以在修复混合物中燃烧液体载体并形成封闭缺陷的陶瓷组合物。