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1. 发明授权

US06720028B1 Impregnated ceramic core and method of making 失效
标题翻译：浸渍陶瓷芯及其制作方法
公开(公告)号：US06720028B1
公开(公告)日：2004-04-13
申请号：US09818950
申请日：2001-03-27
申请人： Rodney S. Haaland
发明人： Rodney S. Haaland
IPC分类号： B05D302
CPC分类号： B22C9/12 , B22C9/10 , C04B41/009 , C04B41/4823 , C04B41/483 , C04B41/4869 , C04B2111/00879 , Y10T428/31855 , C04B35/00 , C04B35/14
摘要： An impregnated fired, porous ceramic core for use in an investment casting shell mold in the casting of molten metals and alloys is strengthened by impregnating the core with an aqueous emulsion of water-insoluble polymer followed by drying to remove the water.
摘要翻译：通过用水不溶性聚合物的水性乳液浸渍芯体，然后干燥以除去水，增强了用于熔融金属和合金铸造中的熔模铸造壳模具中的浸渍的烧制多孔陶瓷芯。

2. 发明授权

US06578623B2 Ceramic core and method of making 有权
公开(公告)号：US06578623B2
公开(公告)日：2003-06-17
申请号：US09968654
申请日：2001-10-01
申请人： Ronald J. Keller , Rodney S. Haaland , Julie A. Faison
发明人： Ronald J. Keller , Rodney S. Haaland , Julie A. Faison
IPC分类号： B22C910
CPC分类号： B22C9/10 , B22C3/00
摘要： Method of making a ceramic core for casting an industrial gas turbine engine airfoil having a large airfoil pitch by forming a precursor core (chill) of smaller dimensions than the final desired ceramic core, firing the chill, applying a thin ceramic skin to the fired chill to form a coated core of final dimensions, and then firing the coated core. Firing of the thin ceramic skin reduces airfoil pitch shrinkage resulting from the latter firing operation to reduce overall core dimensional tolerance variations.

3. 发明授权

US06588484B1 Ceramic casting cores with controlled surface texture 失效
标题翻译：具有受控表面纹理的陶瓷铸芯
公开(公告)号：US06588484B1
公开(公告)日：2003-07-08
申请号：US09597311
申请日：2000-06-20
申请人： Ken Ervin Fosaaen , Rodney S. Haaland
发明人： Ken Ervin Fosaaen , Rodney S. Haaland
IPC分类号： B22C910
CPC分类号： B22C9/10
摘要： A method of making a ceramic core is provided wherein the ceramic core is grit blasted using abrasive grit media particulates directed at the core through a preformed apertured mask or pattern to impart a controlled pattern of surface concavities to the core surface by impingement of the abrasive grit media thereon. Another method of making a ceramic casting core is provided wherein the ceramic core is formed in a molding die having a fugitive textured mask or a permanent textured insert positioned on the die surface to impart a controlled surface texture or roughness to the core surfaces.
摘要翻译：提供了一种制造陶瓷芯的方法，其中陶瓷芯使用通过预成型的孔径掩模或图案指向芯的磨料砂粒介质颗粒进行喷砂处理，以通过冲击磨料砂砾将表面凹陷的受控图案赋予芯表面介质上。提供制造陶瓷铸造芯的另一种方法，其中陶瓷芯形成在具有短暂纹理化掩模或位于模具表面上的永久性纹理插入件的模制模中，以赋予芯表面受控的表面纹理或粗糙度。

4. 发明授权

US06494250B1 Impregnated alumina-based core and method 失效
标题翻译：浸渍氧化铝为主的核心及方法
公开(公告)号：US06494250B1
公开(公告)日：2002-12-17
申请号：US09924962
申请日：2001-08-08
申请人： Gregory R. Frank , Ronald J. Keller , Rodney S. Haaland , Charles F. Caccavale , Alfred P. Kaulius, Jr.
发明人： Gregory R. Frank , Ronald J. Keller , Rodney S. Haaland , Charles F. Caccavale , Alfred P. Kaulius, Jr.
IPC分类号： B22C100
CPC分类号： C04B35/6303 , B22C9/10 , B22C9/12 , C04B35/111 , C04B35/624 , C04B41/009 , C04B41/5045 , C04B41/87 , C04B2111/00879 , C04B2235/3206 , C04B2235/3222 , C04B2235/3225 , C04B2235/6022 , C04B2235/80 , C04B2235/96 , C04B41/4539 , C04B35/10 , C04B35/117 , C04B38/00
摘要： An impregnated fired porous alumina-based ceramic core for use in an investment shell mold in the casting of molten metals and alloys wherein the core is impregnated with yttria to improve core creep resistance at elevated casting temperatures and times.
摘要翻译：一种浸渍的多孔氧化铝基陶瓷芯，用于熔融金属和合金铸造中的投资外壳模具中，其中芯浸渍有氧化钇，以提高铸造温度和时间下的耐芯蠕变性。

5. 发明授权

US06315941B1 Ceramic core and method of making 有权
标题翻译：陶瓷芯和制作方法
公开(公告)号：US06315941B1
公开(公告)日：2001-11-13
申请号：US09339293
申请日：1999-06-24
申请人： Ronald J. Keller , Rodney S. Haaland , Julie A. Faison
发明人： Ronald J. Keller , Rodney S. Haaland , Julie A. Faison
IPC分类号： C04B3584
CPC分类号： B22C9/10 , B22C3/00
摘要： Method of making a ceramic core for casting an industrial gas turbine engine airfoil having a large airfoil pitch by forming a precursor core (chill) of smaller dimensions than the final desired ceramic core, firing the chill, applying a thin ceramic skin to the fired chill to form a coated core of final dimensions, and then firing the coated core. Firing of the thin ceramic skin reduces airfoil pitch shrinkage resulting from the latter firing operation to reduce overall core dimensional tolerance variations.
摘要翻译：制造陶瓷芯的方法，用于通过形成具有比最终期望的陶瓷芯更小的尺寸的前体核（冷却）来铸造具有大翼型节距的工业燃气涡轮发动机翼型，烧制冷却，将薄的陶瓷表面施加到烧制的冷却以形成最终尺寸的涂覆芯，然后焙烧涂覆的芯。烧结薄陶瓷表皮减少了由后一次焙烧操作引起的翼型间距收缩，以减小整体的芯尺寸公差变化。

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