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    • 3. 发明授权
    • Ceramic casting cores with controlled surface texture
    • 具有受控表面纹理的陶瓷铸芯
    • US06588484B1
    • 2003-07-08
    • US09597311
    • 2000-06-20
    • Ken Ervin FosaaenRodney S. Haaland
    • Ken Ervin FosaaenRodney S. Haaland
    • B22C910
    • B22C9/10
    • 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.
    • 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。