Gas-permeable refractory parts

Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

106 40R, 106104, C04B 3502, C04B 2112

Patent

active

042369312

ABSTRACT:
The invention relates to gas-permeable parts comprised, by weight, of (A) 60 to 90% of granules of a grain size from 5 mm to 0.2 mm formed from a material selected among the group consisting of a chamotte containing at least 42% of Al.sub.2 O.sub.3, mullite, fired gibbsite containing more than 90% Al.sub.2 O hd 3, sintered or fused cast corundum containing more than 95% Al.sub.2 O.sub.3, natural chromite, sintered MgO, zircon sand and stabilized zirconia, and (B) 10 to 40% of a bonding cement comprised a calcium aluminate, a material selected among SiO.sub.2, Al.sub.2 O.sub.3 and Cr.sub.2 O.sub.3 having a particle size between 100 A and 0.1 micron, and alumina having a particle size between 1 and 100 microns. These parts retain a high mechanical strength when heated between hydraulic setting and ceramization, and are useful for blowing a gas therethrough in order to stir molten steel and cast iron.

REFERENCES:
patent: 3060043 (1962-10-01), Renkey
patent: 3753746 (1973-08-01), Koerner
patent: 3802894 (1974-04-01), Prost et al.
patent: 3884709 (1975-05-01), Hay
patent: 4102695 (1978-07-01), Claverie
patent: 4111711 (1978-09-01), Kiehl et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Gas-permeable refractory parts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gas-permeable refractory parts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas-permeable refractory parts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2282421

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.