North American Refractories Company

Shyam Miglani

Ronald L Barrett

Donald Abrino

John Crooks

David J Michael

H David Prior

A magnesia-carbon brick comprised of about 50 to about 95% by weight magnesia and about 1 to about 20% by weight carbon, with or without metallic additions, such that the chemical analysis of the mixture of aggregates used in the brick will comprise, by chemical analysis, about 2 to about 15% SiO, about 3 to about 50% AlO, and about 50 to about 95% MgO.

Refractory brick for steel ladles

A lining for a bottom of a metallurgical vessel, comprising an impact pad having a plurality of close-packed, pre-formed, high-temperature, high-density refractory bricks, the pad having an upper impact surface, and a monolithic slab of a high-temperature refractory material encasing the pad, the slab encasing the pad wherein the upper surface of the impact pad is exposed.

Growing community of inventors

State College, PA, United States of America

Shyam Miglani