Metal founding – Process – Shaping a forming surface
Reexamination Certificate
2005-02-22
2005-02-22
Elve, M. Alexandra (Department: 1725)
Metal founding
Process
Shaping a forming surface
C164S035000, C164S045000
Reexamination Certificate
active
06857461
ABSTRACT:
A method of producing reticular structures, particularly metallic reticular structures, as well as a device suitable for the production thereof. The method and device enable continuous and/or automated production of such structures, and particularly, large-scale automated production of large-dimensioned reticular structures. A reticulated foam pre-structure is placed into a first container and infiltrated with a refractory material. After solidification, the mold formed by the refractory material is removed from the first container and the foam pre-structure stripped from the mold. The mold is then pre-heated and placed into a second container and infiltrated with a molten substance that forms the reticular structure when solidified. The filled mold may be covered with a solid jacket as a means of controlling the rate and progression of solidification of the molten substance to form a fine-grained, bubble-free structure.
REFERENCES:
patent: 3616841 (1971-11-01), Walz
patent: 3946039 (1976-03-01), Walz
patent: 3996991 (1976-12-01), Ugata et al.
patent: 63-84758 (1988-04-01), None
Girlich Dieter
Schaedlich-Stubenrauch Juergen
Bohan Thomas L.
Elve M. Alexandra
Kerns Kevin P.
Mathers Patricia M.
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