Deslagging and dephosphorizing method of electric stove

Deslagging and dephosphorizing method of electric stove

The invention relates to a deslagging and dephosphorizing method of an electric stove, which adopts the following public technical scheme: slagging; deslagging for the first time; smelting by blowing oxygen, starting to deslag when the temperature of molten steel increases to 1500-1510 DEG C, and co...

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Hauptverfasser: ZHOU XINLONG, WANG GUOQIU, WEI ZEHONG, ZHANG XIANZHONG, LI XIANZHONG, MIAO KAI, GUI JIANGBING, XIONG YUZHANG, CHEN QINGFENG, GUO YUANKUI
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 ZHOU XINLONG
WANG GUOQIU
WEI ZEHONG
ZHANG XIANZHONG
LI XIANZHONG
MIAO KAI
GUI JIANGBING
XIONG YUZHANG
CHEN QINGFENG
GUO YUANKUI
description The invention relates to a deslagging and dephosphorizing method of an electric stove, which adopts the following public technical scheme: slagging; deslagging for the first time; smelting by blowing oxygen, starting to deslag when the temperature of molten steel increases to 1500-1510 DEG C, and controlling the weight percentage of phosphorus to decrease to be not more than 0.015 percent; slagging for the second time; deslagging for the second time, i.e. starting to deslag for the second time when the temperature of molten steel increases to 1520-1550 DEG C, and controlling the weight percentage of the phosphorus to decrease to be not more than 0.010 percent; slagging for the third time; deslagging for the third time, and controlling the weight percentage of the phosphorus to decrease to be not more than 0.005 percent; slagging for the fourth time; and preserving heat by blowing oxygen, adopting steel and slag residual operation with a tapping amount accounting for 85-90 percent of the total capacity of the
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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 Deslagging and dephosphorizing method of electric stove
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