Refractory raw materials, method for production thereof and...

Details Refractory raw materials, method for production thereof and... Refractory raw materials, method for production thereof and...

2006-06-13

2006-06-13

Sample, David (Department: 1755)

Compositions: ceramic

Ceramic compositions

Refractory

C501S101000

Reexamination Certificate

active

07060642

ABSTRACT:
Refractories obtained by molding a refractory raw material composition containing a refractory raw material including graphite grains having an average grain size of 500 nm or less or a refractory raw material including graphite grains obtained by graphitizing carbon black and a refractory filler. Or refractories containing carbonaceous grains (A) selected from carbon black or graphite grains obtained by graphitizing carbon black and having a DBP absorption (x) of 80 ml/100 g or more, carbonaceous grains (B) selected from carbon black and graphite grains obtained by graphitizing carbon black and having a DBP absorption (x) of less than 80 ml/100 g, and a refractory filler. Refractories excellent in corrosion resistance, oxidation resistance and thermal shock resistance, especially carbon-contained refractories having a low carbon content are thereby provided.

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