Molding Process and the Resulting Mold
AssigneeSintokogio, Ltd.
InventorsNorihiro Asano, Toshihiko Zenpo, Masaya Hotta, Kazuyuki Nishikawa
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Abstract
A molding process which comprises mixing together a particulate aggregate, plural kinds of water-soluble binders, a crosslinking agent causing crosslinking reaction with the binders, a phenol resin, and water, agitating the obtained mixture to prepare a bubbled fluid aggregate mixture, filling the aggregate mixture into a molding cavity, and solidifying the aggregate mixture through the evaporation of water from the mixture to give a mold made from the mixture.
Claims19
A process for molding a mold comprising steps of
- a. mixing, stirring, and bubbling granular aggregates, plural kinds of water-soluble binders as bonds, a cross-linker that causes a bridging reaction with the water-soluble binders, and phenolic resin, to produce a fluid aggregate mixture;
- b. filling a molding space with said fluid aggregate mixture;
- and
- c. vaporizing moisture in said filled fluid aggregate mixture such that the aggregate mixture is cured to produce a mold from the cured aggregate mixture.
A mold comprising an aggregate mixture that includes granular aggregates, plural kinds of water-soluble binders, a cross-linker that causes a bridging reaction with said water-soluble binders, and 0.05 to 0.50 wt % of phenolic resin per 100 wt % of said granular aggregates.
Dependencies are inferred from the claim text.