Effect of additives on the oxidation resistance of aluminum-carbon submerged nozzles
1. SiC can not play the role of anti-oxidation on aluminum carbon refractory materials,
Si, Al, B4C and composite additives can play a certain degree of
anti-oxidation effect on aluminum carbon submerged entry nozzle, among
which B4C anti-oxidation effect is the best.Tundish Nozzle Well Block
2. The anti-oxidation mechanism of Si, B4C and Al powders is mainly
based on their affinity for oxygen being greater than C, which is
preferentially oxidized. In addition, they generate new phases during
the oxidation process, change the microstructure of the material, reduce
the porosity of the material, and improve the oxidation resistance of
the material. Tundish Nozzle
3. Both Al and Si powder form a ceramic bond with other components in the refractory
material during heat treatment, so they can increase the strength of
the material to a certain extent, and Si powder increases the strength
of the material to a greater extent.
Article source:
http://www.ruizhirefractory.com/en/new/effect-of-additives-on-the-oxidation-resistance-of-aluminum-carbon-submerged-nozzles.html
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Effect of additives on the oxidation resistance of aluminum-carbon submerged nozzles
回复删除1. SiC can not play the role of anti-oxidation on aluminum carbon refractory materials, Si, Al, B4C and composite additives can play a certain degree of anti-oxidation effect on aluminum carbon submerged entry nozzle, among which B4C anti-oxidation effect is the best.
Source:
http://www.ruizhirefractory.com/en/new/effect-of-additives-on-the-oxidation-resistance-of-aluminum-carbon-submerged-nozzles.html