Title:
COUNTERGRAVITY CASTING APPARATUS AND DESULFURIZATION METHODS
Document Type and Number:
WIPO Patent Application WO/2019/084378
Kind Code:
A3
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.
Inventors:
MARCIN JOHN J JR (US)
CETEL ALAN D (US)
BOCHIECHIO MARIO P (US)
CLEMENS READE R (US)
CETEL ALAN D (US)
BOCHIECHIO MARIO P (US)
CLEMENS READE R (US)
Application Number:
PCT/US2018/057675
Publication Date:
June 06, 2019
Filing Date:
October 26, 2018
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORP (US)
International Classes:
B22C9/08; B01D46/00; B22D18/06; C01B13/02; C22C19/03; C22C33/08
Foreign References:
| US4982777A | 1991-01-08 | |||
| EP0473062A2 | 1992-03-04 | |||
| CN201357220Y | 2009-12-09 | |||
| US6684934B1 | 2004-02-03 | |||
| US6102983A | 2000-08-15 | |||
| US20030170489A1 | 2003-09-11 | |||
| US20160053346A1 | 2016-02-25 | |||
| US20140178244A1 | 2014-06-26 | |||
| US5346563A | 1994-09-13 |
Other References:
See also references of EP 3544716A4
Attorney, Agent or Firm:
SLATE, William B. (US)
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