公开(公告)号：US3747765A

公开(公告)日：1973-07-24

申请号：US3747765D

申请日：1971-06-09

申请人： KAISER ALUMINIUM CHEM CORP

发明人： NOWAK T

IPC分类号： B01D29/11 ,  B01D39/20 ,  C22B21/06 ,  B01D29/20 ,  C04B21/00

CPC分类号： C22B21/066 ,  B01D29/111 ,  B01D29/33 ,  B01D29/52 ,  B01D29/96 ,  B01D39/2075 ,  B01D2201/0453 ,  B01D2201/287 ,  B01D2201/34

摘要： Filter assembly for filtering solids from molten aluminum metal comprises at least one open-ended rigid refractory filter tube having an interior passageway, a bottom plate acting to close one end of such tube, a top plate having an aperture communicating with the interior passageway of such filter tube, and means, such as a tie bolt, with a fastener device to maintain the top and bottom plate and the interposed filter tube or tubes in sealed relationship so that the molten metal will flow through the walls of the rigid refractory filter tube without leakage at the ends or joints, to efficiently remove solid contaminants from the metal. The plates and tie rod or the like are of metal resistant to attack by molten aluminum, advantageously of cast iron. The refractory material of the tubes contains refractory particles resistant to molten aluminum and a bonding agent containing not over 10 percent silica.