REFRACTORY BODY FOR MANUFACTURE OF ROASTLESS FORSTERITE CARBONIC REFRACTORIES Russian patent published in 2003 - IPC

FIELD: ferrous metallurgy, in particular, production of roastless refractories for casting of steel, plates for slide gates of casting ladles, headers, pocket blocks, tueres, pipes for protection of metal jet against oxidation. SUBSTANCE: refractory body for manufacture of roastless forsterite carbonic refractories has roasted dunite or rejected dunite products of 3-10 mm fraction, 60-80 mas.%, sintered periclase-containing component that represents a fine-ground component of fused or sintered periclase or rejected periclase products in a mix with fireclay in ratio (80:20)-(90:10), 2-40 mas. %, the body contains crucible graphite within 2-7 mas.% above 100%, soluble glass with density of 1.42-1.45 g/cu.cm, 7 mas.%, in addition the body may include sintered periclase of 3.0-10 mas.%. EFFECT: enhanced thermomechanical properties, absence of expensive components. 2 cl, 2 tbl