Inorganic foundry binder systems and their uses

Details Inorganic foundry binder systems and their uses Inorganic foundry binder systems and their uses

1995-01-12

1996-12-10

Hail, III, Joseph J.

Metal founding

Process

Shaping a forming surface

B22C 118

Patent

active

055822320

ABSTRACT:
This invention relates to inorganic no-bake foundry binder systems and their uses. The binder systems comprise as separate components: (A) mono-aluminum phosphate in an aqueous solution containing specified phosphoric acids, and (B) magnesium oxide; and certain specified zinc compounds in either the Component A, Component B or both. The components of the binder system react when they are mixed with a foundry aggregate to prepare foundry mixes which are used to prepare foundry molds and cores. The foundry molds and cores are used to cast metals.

REFERENCES:
patent: 3930872 (1976-01-01), Toeniskoetter et al.
patent: 4111705 (1978-09-01), Junovich et al.
patent: 4383861 (1983-05-01), Seeney et al.
patent: 5279665 (1994-01-01), Yunovich et al.
patent: 5390727 (1995-02-01), Yunovich et al.

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