Abstract
Negative pressure inside submerged entry nozzle (SEN) during continuous casting process will cause the external air to enter the SEN to cause the secondary oxidation of the molten steel and accelerate the SEN clogging. Based on it, this paper innovatively designed an Al2O3 clogging experimental method under near working conditions, and verified its feasibility. Compared with the existing experimental methods, this new experiment method stimulates the working conditions, ensures the stable source, content, and size of Al2O3 inclusions around specimens. The new test method is used to determine that that the calcium stabilized ZrO2 lining had the better anti-clogging effect.
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