公开(公告)号：US20180078888A1

公开(公告)日：2018-03-22

申请号：US15823729

申请日：2017-11-28

申请人： ASK Chemicals LLC

发明人： Robert Alan GAGE ,  David Andrew NORRIS ,  Shannon Frederick FORSYTHE ,  Joerg KROKER

IPC分类号： B01D39/20 ,  B01D29/00 ,  B29C64/124 ,  C22B9/02 ,  B28B7/34 ,  B28B1/30 ,  C04B38/06 ,  C04B38/00

CPC分类号： B01D39/2075 ,  B01D29/0093 ,  B01D39/2068 ,  B01D2239/069 ,  B01D2239/10 ,  B28B1/30 ,  B28B7/342 ,  B29C64/124 ,  B29K2009/06 ,  B29L2009/00 ,  B29L2031/14 ,  B33Y10/00 ,  B33Y80/00 ,  C04B38/0009 ,  C04B38/0615 ,  C04B2111/00793 ,  C04B2111/0087 ,  C22B9/023 ,  Y02P10/234 ,  C04B35/00

摘要： A filter element, useful for filtering molten metals and the like, is made from a precursor or template (10) having at least two layers (20). Each layer is assembled from three-dimensional geometric cages (22), joined in fixed relationship to each other: Some embodiments include a peripheral member (26) that encompasses the layer. In such cases, spacer members (28) can span the peripheral members to hold the layers in fixed spaced-apart relationship. In other embodiments, at least some of the cages in adjacent layers can be joined in fixed relationship, providing the spaced-apart relationship. The cages can be built from linear segments of a material joined in a pattern based on the edges of the geometric solid. The template may be formed by an automated technique, such as three-dimensional printing. If manufactured from a polymer, the precursor is coated with a ceramic slurry and calcined to provide the filter element.