초록 ▼

A refractory moldable composition which, upon drying, sets up to refractory shapes which are strongly adherent to the molding surfaces and are essentially crack-free, contains about 45 to about 65% of a liquid vehicle, such as water; about 21 to about 26% ceramic fiber; about 7 to about 30% finely d

A refractory moldable composition which, upon drying, sets up to refractory shapes which are strongly adherent to the molding surfaces and are essentially crack-free, contains about 45 to about 65% of a liquid vehicle, such as water; about 21 to about 26% ceramic fiber; about 7 to about 30% finely divided silica; and sufficient adhesion enhancing agent to impart from about 18 to about 50 grams per square centimeter adherence to steel. The molded composition adheres excellently to molding surfaces and dries to give an essentially crack-free refractory shape, useful as thermal insulation at temperatures up to 1300°C. The composition may optionally include hollow plastic or ceramic spheres.

대표청구항 ▼

A refractory moldable composition consisting essentially of: (a) from about 45 to about 65% by weight liquid vehicle; (b) from about 21 to about 26% by weight ceramic fiber; (c) from about 7 to about 30% by weight colloidal silica; and (d) sufficient adhesion enhancing agent, said adhesion enhancing

A refractory moldable composition consisting essentially of: (a) from about 45 to about 65% by weight liquid vehicle; (b) from about 21 to about 26% by weight ceramic fiber; (c) from about 7 to about 30% by weight colloidal silica; and (d) sufficient adhesion enhancing agent, said adhesion enhancing agent being a solid organic polymer substance containing polar groups which impart adhesive properties to the polymer, to impart an adherence value to steel of the steel plate from the mold of from about 18 to about 50 grams per square centimeter, the liquid vehicle being a non-solvent for the ceramic fiber and colloidal silica and a solvent for the adhesion enhancing agent.