Material used to combat thermal expansion related defects in...

Details Material used to combat thermal expansion related defects in... Material used to combat thermal expansion related defects in...

2011-08-30

2011-08-30

Brunsman, David M (Department: 1732)

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

C106S038200, C523S139000, C164S138000, C164S523000

Reexamination Certificate

active

08007580

ABSTRACT:
An additive to foundry sand molding and core aggregates is used to produce sand cores and molds comprising kyanite, spodumene, titanium dioxide, ilmenite and black iron oxide. The additive produces a sand-based foundry molding and core aggregate which resists the formation of some of the defects commonly associated with the production of castings produced by silica sand-based molding and core aggregates. In particular, the additive improves the quality of castings poured at temperatures higher than those of the pouring temperatures of molten iron, such as in steel castings, and in iron castings with “hot spots.”

REFERENCES:
patent: 2818620 (1958-01-01), Moore
patent: 4093467 (1978-06-01), Lyass et al.
patent: 4152167 (1979-05-01), Horvitz et al.
patent: 4264052 (1981-04-01), Radtke et al.
patent: 4345003 (1982-08-01), Matsushima et al.
patent: 4347890 (1982-09-01), Ailin-Pyzik et al.
patent: 4432798 (1984-02-01), Helferich et al.
patent: 4514227 (1985-04-01), Szabo
patent: 4594105 (1986-06-01), Grimm et al.
patent: 4624898 (1986-11-01), Moore et al.
patent: 4636262 (1987-01-01), Reed
patent: 5057155 (1991-10-01), Nakayama et al.
patent: 5911269 (1999-06-01), Brander et al.
patent: 6391942 (2002-05-01), Chang et al.
patent: 6972302 (2005-12-01), Baker et al.
patent: 2005/0258405 (2005-11-01), Sayala et al.
PCT International Search Report and Written Opinion mailed Jan. 12, 2009, for Application No. PCT/US08/82849 filed Nov. 7, 2008.

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