Process for forming a coherent refractory mass on a surface

Details Process for forming a coherent refractory mass on a surface Process for forming a coherent refractory mass on a surface

1992-06-23

1997-11-11

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Furnace lining formation or repair

264 31, 264 82, F27D 116

Patent

active

056860285

ABSTRACT:
A process for forming a coherent refractory mass on a surface of a refractory, which refractory includes at least one silicon compound, the process including providing a mixture including (1) combustible particles including silicon particles, (2) refractory particles of one or a plurality of substances which constitute a major portion by weight of the mixture, and (3) particles of another substance or precursor of the another substance which particles are nonmetallic and which another substance causes incorporation of silica, formed by combustion of the silicon particles, into a crystalline lattice of a compound formed between the silica and the another substance within the coherent refractory mass to be formed; and projecting the mixture against the surface of a refractory, simultaneously with oxygen, so that the combustible particles react in an exothermic manner with the projected oxygen and release sufficient heat to form the coherent refractory mass under action of heat of combustion and so that silica is formed by combustion of the silicon particles, which silica is incorporated into the crystalline lattice of the compound formed between the silica and the another substance such that the coherent refractory mass adheres durably to the surface of the refractory and retains this adherence under repeated variations in thermal conditions.

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