Research of Fluoride-Free Protective Slag Used in Low C Steel

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Abstract:

In order to eliminate the hazards of fluoride, the low melting point and boosting substances of Li2O, BaO, B2O3 were added into the low C peritectic steel mold powder replaced fluoride. It makes fluorine-free protection slag successfully developed. The crystalline ore phase of Fluorine-free mould slag is melilite. By adjustment crystallization ratio of melilite in slag film, the heat flow through the mold can be controlled.

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312-316

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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