Process of making a molded refractory article

Details Process of making a molded refractory article Process of making a molded refractory article

1998-06-12

1999-11-23

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Stereolithographic shaping from liquid precursor

264219, 264221, 264225, 264227, 264497, 264628, B29C 3338, B29C 3508, B29C 4102

Patent

active

059894768

ABSTRACT:
A method for making a molded refractory article including the steps of providing a mold including a master pattern, the mold and master pattern defining a mold cavity; filling the mold cavity with a mixture comprising refractory particles and a heat fugitive binder; placing the assembly of the mold, master pattern and mixture in a furnace; curing the mixture; separating the mold and master pattern from the cured mixture; removing the binder to form a porous structure, sintering the porous structure to provide a porous refractory article and infiltrating the porous refractory article with a filler metal.

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U.S. Provisional Application No. 60/079,847, filed Mar. 27, 1998, by Charles W. Hull, et al., and titled "Molding Method, Apparatus, And Device Including Use Of Powder Metal Technology For Forming A Molding Tool With Thermal Control Elements."

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