초록 ▼

A dry ramming refractory cement composed principally of coarse dense alumina grains, silicon metal powder, calcined alumina and sodium hexametaphosphate, and optionally one or more materials from the group including silicon carbide, fused white alumina, chromia, periclase, kyanite, graphite and cryo

A dry ramming refractory cement composed principally of coarse dense alumina grains, silicon metal powder, calcined alumina and sodium hexametaphosphate, and optionally one or more materials from the group including silicon carbide, fused white alumina, chromia, periclase, kyanite, graphite and cryolite.

대표청구항 ▼

A refractory cement mix adapted to be placed in a dry condition for forming linings for conduits for conveying molten iron and slag from a blast furnace by sintering the mix in situ in such conduit comprising a mixture of dense alumina grains of from 6 to 10 mesh in an amount by weight of 24%, dense

A refractory cement mix adapted to be placed in a dry condition for forming linings for conduits for conveying molten iron and slag from a blast furnace by sintering the mix in situ in such conduit comprising a mixture of dense alumina grains of from 6 to 10 mesh in an amount by weight of 24%, dense alumina grains of from 12 to 16 mesh in an amount by weight of 25%, dense alumina grains 20 mesh and finer in an amount by weight of 35%, calcined alumina of from 200 mesh and finer in an amount by weight of 10%, silicon 90 mesh and finer in an amount by weight of 3%, and (NaPO3)6 200 mesh and finer in an amount by weight of 3%.