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The invention relates to a castable for a main iron trough. The castable comprises a main material and an additive, wherein the main material comprises components in parts by weight as follows: 5-8 parts of 10-5mm magnesium titanate, 15-20 parts of 5-3 mm chromium nitride, 10-15 parts of 3-1 mm sillimanite, 8-15 parts of 1-0 mm calcium chromite, 2-5 parts of clay powder, 3-7 parts of cobaltous oxide aluminum powder, 5-10 parts of cutting powder, 3-8 parts of amorphous graphite powder, 1-2 parts of composite carbon powder, 0-3 parts of molybdenum trioxide powder, 3-5 parts of alumina micropowder, 1-5 parts of magnesium oxide iron powder, 1-3 parts of rho aluminum oxide and 1-5 parts of fused calcium aluminate cement; the additive comprises, in parts by weight, 0.1-0.2 parts of calcium lignosulfonate, 0.01-0.05 parts of nano potato powder, 0.01 parts of malic acid and 0.1 parts of C12H14N4O5S2 on the basis that the parts of the main material by weight adds up to 100%. The blast furnace iron trough prepared with the castable has the characteristics of good thermal shock resistance, high corrosion resistance, large iron influx and long service life.
The invention relates to a castable for a main iron trough. The castable comprises a main material and an additive, wherein the main material comprises components in parts by weight as follows: 5-8 parts of 10-5mm magnesium titanate, 15-20 parts of 5-3 mm chromium nitride, 10-15 parts of 3-1 mm sillimanite, 8-15 parts of 1-0 mm calcium chromite, 2-5 parts of clay powder, 3-7 parts of cobaltous oxide aluminum powder, 5-10 parts of cutting powder, 3-8 parts of amorphous graphite powder, 1-2 parts of composite carbon powder, 0-3 parts of molybdenum trioxide powder, 3-5 parts of alumina micropowder, 1-5 parts of magnesium oxide iron powder, 1-3 parts of rho aluminum oxide and 1-5 parts of fused calcium aluminate cement; the additive comprises, in parts by weight, 0.1-0.2 parts of calcium lignosulfonate, 0.01-0.05 parts of nano potato powder, 0.01 parts of malic acid and 0.1 parts of C12H14N4O5S2 on the basis that the parts of the main material by weight adds up to 100%. The blast furnace iron trough prepared with the castable has the characteristics of good thermal shock resistance, high corrosion resistance, large iron influx and long service life.
Castable for main iron trough
TANG LIANFANG (Autor:in)
30.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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