Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2007-06-13
2009-08-25
Kerns, Kevin P (Department: 1793)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S134000
Reexamination Certificate
active
07578336
ABSTRACT:
A casting mold and method for its use to achieve in-mold modification of the casting metal is disclosed. One or more chambers are located within the casting mold's runner system. Each chamber can contain metallurgical modifiers for adjusting the chemical composition of the metal to improve the mechanical and physical properties of an article cast from the metal. One or more modifiers can be placed in the chamber(s) as the casting mold is assembled for use. As the melt is introduced to the casting mold, it passes through the chamber(s) and liquefies the modifier. Amounts of the liquid modifier, then, are carried away and become dispersed in the melt as it continues through the runner system and into the mold cavity. The metallurgical modifiers can be selected from any number of known additives or alloying elements, including strontium, among others.
REFERENCES:
patent: 4749549 (1988-06-01), Hornung et al.
patent: 4867227 (1989-09-01), Trager et al.
patent: 5033531 (1991-07-01), Fisher et al.
patent: 5161604 (1992-11-01), Chandley et al.
patent: 5230754 (1993-07-01), Setzer et al.
patent: 5259442 (1993-11-01), Clark
patent: 6540005 (2003-04-01), Daussan et al.
patent: 6793707 (2004-09-01), Craig et al.
patent: 7011133 (2006-03-01), Eckert
Osborne Mark A.
Singer James T.
Srinivasan Venkatramanan
Stahl, Jr. Kenneth George
Wall Edward C.
GM Global Technology Operations Inc.
Harness & Dickey & Pierce P.L.C.
Kerns Kevin P
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