公开(公告)号：US20200038942A1

公开(公告)日：2020-02-06

申请号：US16599646

申请日：2019-10-11

Applicant: United Technologies Corporation

Inventor： John J. Marcin, JR. ,  Alan D. Cetel ,  Mario P. Bochiechio ,  Reade R. Clemens

IPC: B22D1/00 ,  B22D23/00

Abstract: An apparatus for countergravity casting a metallic material, comprises: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; a gas source coupled a headspace of the melting vessel to allow the gas source to pressurize said headspace to establish a pressure differential to force the melted metallic material upwardly through said fill tube into said mold; and means for gettering sulfur.

公开(公告)号：US20200156147A1

公开(公告)日：2020-05-21

申请号：US16604367

申请日：2018-10-26

Applicant: United Technologies Corporation

Inventor： John J. Marcin, JR. ,  Alan D. Cetel ,  Mario P. Bochiechio ,  Reade R. Clemens

IPC: B22D18/06 ,  B22D21/02 ,  B22D1/00

Abstract: An apparatus for countergravity casting a metallic material, comprises: a crucible for holding melted metallic material; a casting chamber for containing a mold; a fill tube capable of extending into the crucible to communicate melted metallic material to the casting chamber; a gas source coupled a headspace of the melting vessel to allow the gas source to pressurize said headspace to establish a pressure differential to force the melted metallic material upwardly through said fill tube into said mold; and means for gettering sulfur.