Method for controlling aluminum content in slag washing direct-feeding aluminum killed steel

Method for controlling aluminum content in slag washing direct-feeding aluminum killed steel

The invention belongs to the field of ferrous metallurgy, and particularly relates to a method for controlling the content of aluminum in slag washing direct feeding aluminum killed steel, which comprises the following steps: S1, controlling materials: checking scrap steel entering a furnace; s2, th...

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Hauptverfasser: ZHANG DAN, ZHANG HONGGANG, LIN RUIMIN, LIU SONG, CHEN HUIZHEN, GUO CHAO, CHENG GENGHUI, HOU YONG
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
METALLURGY
METALLURGY OF IRON
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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creator ZHANG DAN
ZHANG HONGGANG
LIN RUIMIN
LIU SONG
CHEN HUIZHEN
GUO CHAO
CHENG GENGHUI
HOU YONG
description The invention belongs to the field of ferrous metallurgy, and particularly relates to a method for controlling the content of aluminum in slag washing direct feeding aluminum killed steel, which comprises the following steps: S1, controlling materials: checking scrap steel entering a furnace; s2, the converter carbon temperature is controlled, specifically, the tapping temperature of low-carbon steel and medium-carbon steel in the converter working procedure is controlled to be 1650-1680 DEG C; s3, steel tapping and slag tapping are controlled; s4, tapping, deoxidizing and alloying: adding an alloy, adding lime, a slag washing material and an aluminum block in batches, and ensuring that the entering oxygen content of an argon station is 15-50PPM; s5, argon station slag washing is adjusted, specifically, the temperature is adjusted to 1610 +/-5 DEG C, and aluminum wires are fed after medium blowing; aluminum calcium balls are added, aluminum powder is rapidly added after medium blowing slag is foamed, soft blo
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subjects CHEMISTRY
METALLURGY
METALLURGY OF IRON
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
title Method for controlling aluminum content in slag washing direct-feeding aluminum killed steel
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