High density low porosity refractory product and process for mak

Details High density low porosity refractory product and process for mak High density low porosity refractory product and process for mak

1979-02-26

1980-11-04

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

106 59, 264140, B29C 3504

Patent

active

042319781

ABSTRACT:
A refractory shape having high density, low porosity, and small median pore size is formed from very fine grain refractory material, specifically finely milled periclase and chrome ore, by tempering the fine materials with a chemical bonding solution, specifically magnesium chloride and/or magnesium sulfate, combining the tempered fine material into larger size agglomerated pieces, drying and crushing the agglomerated pieces, grade sizing the crushed agglomerated pieces into fractions of varying size gradation, compounding a mix suitable for forming a shape by mixing the fractions in proper proportions, moistening the mix, and pressing it into the desired refractory shape. The refractory shape is then dried and fired to form a ceramic bond.

REFERENCES:
patent: 2639993 (1953-05-01), Heuer
patent: 3522065 (1970-07-01), Herron
patent: 4125407 (1978-11-01), Veho
patent: 4169734 (1979-10-01), Brenzy

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