Method of making an insulating refractory

Details Method of making an insulating refractory Method of making an insulating refractory

C - Chemistry, Metallurgy

04

B

25/126

C04B 33/28 (2006.01) C04B 35/101 (2006.01) C04B 38/10 (2006.01)

Patent

CA 1098292

-1- ABSTRACT A foamed insulating refractory shape is made by: (1) preparing a slip of water, deflocculating agent, refractory aggregate, at least 7.5% by weight cement, and, optionally, clay; (2) forming a foam of water, foaming agent, and air having a density not over about 80 g/l (5 lbs per cubic foot); (3) admixing the slip and the foam to form a foamed slurry with a viscosity between 1000 and 30, 000 centipoises, the amount of water in the slip being adjusted to yield the desired viscosity in the foamed slurry, (4) pouring the foamed slurry into molds; (5) curing the pieces so formed at a temperature not over about 22°C (about 72°F) for about 16 to 24 hours; (6) drying the pieces at a temperature not over about 93°C (about 200°F); and (7) firing the pieces. The method of this invention produces insulating refractory shapes with higher strength-to-weight ratios than those produced by prior art methods.

319632

Affiliated with

Also associated with

Rating

Method of making an insulating refractory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making an insulating refractory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making an insulating refractory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-482412