公开(公告)号：US3566952A

公开(公告)日：1971-03-02

申请号：US3566952D

申请日：1969-05-22

申请人： WYMAN CURTIS LANE

发明人： LANE WYMAN CURTIS

IPC分类号： B22C9/08 ,  B22D7/10 ,  B22D27/14

CPC分类号： B22C9/088 ,  B22D7/10

摘要： A self-pressurizing feeder head vessel for pressure feeding molten metal into a casting mold is described. The feeder head vessel shown is a dome-shaped, fluid impervious shell with an open bottom, the shell being lined with green sand to define a feeder head cavity. A porous cylinder or an apertured tube is provided at the top of the vessel so that steam formed by heat in the green sand may flow through the cylinder or tube and downward into the feeder head cavity and thus apply pressure on the molten metal in the feeder head cavity to force additional molten metal into the casting mold during the shrinking period. Thus a method disclosed for applying pressure to the molten metal in the feeder head cavity is to vaporize the water in the green sand and apply the fluid pressure thereby generated to the molten metal, and thereby force the molten metal under pressure into the casting mold during shrinkage.

公开(公告)号：US3513904A

公开(公告)日：1970-05-26

申请号：US3513904D

申请日：1967-10-26

申请人： WYMAN CURTIS LANE

发明人： LANE WYMAN CURTIS

IPC分类号： B22C9/08 ,  B22D7/10 ,  B22C9/02 ,  B22D27/14

CPC分类号： B22C9/088 ,  B22D7/10