Refining method for 400-series free-cutting stainless steel
The invention discloses a refining method for 400-series free-cutting stainless steel. The refining method comprises an AOD (Argon Oxygen Decarburization) refining process and an LF (Ladle Furnace) refining process; the technique of the method comprises the following steps: (1) controlling the final...
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| creator | WANG YING XUE ZHENGXUE ZHANG QI WANG XIAOLIANG CAO LONG LI JUN ZHANG RONGXING ZHANG MENGYUN BAI LIGUO CAO HONGBO GUO ZHIBIN FENG WENFU JIA YUHUA YE FANXIN GUO JIAN WU GUANGHAI |
| description | The invention discloses a refining method for 400-series free-cutting stainless steel. The refining method comprises an AOD (Argon Oxygen Decarburization) refining process and an LF (Ladle Furnace) refining process; the technique of the method comprises the following steps: (1) controlling the final slag alkalinity of the AOD refining to be 2.1 to 2.3 and controlling the MgO content in final slag to be 8% to 10%; (2) during the LF refining process, observing viscous slag after heating in the furnace, adding steel which contains 0 to 4kg/ton of lime or steel which contains 0 to 2kg/ton of fluorite to regulate the viscosity of the furnace slag; adding steel which contains 0 to 0.6kg/ton of aluminum particles or ferrosilicon powder to perform deoxidized scorification on the furnace slag until white slag is produced; subsequently, regulating other alloy components excluding sulfur according to needs; then adding steel which contains 0 to 4kg/ton of quartz until the alkalinity of the furnace slag is 1.4 to 1.6; fi |
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The refining method comprises an AOD (Argon Oxygen Decarburization) refining process and an LF (Ladle Furnace) refining process; the technique of the method comprises the following steps: (1) controlling the final slag alkalinity of the AOD refining to be 2.1 to 2.3 and controlling the MgO content in final slag to be 8% to 10%; (2) during the LF refining process, observing viscous slag after heating in the furnace, adding steel which contains 0 to 4kg/ton of lime or steel which contains 0 to 2kg/ton of fluorite to regulate the viscosity of the furnace slag; adding steel which contains 0 to 0.6kg/ton of aluminum particles or ferrosilicon powder to perform deoxidized scorification on the furnace slag until white slag is produced; subsequently, regulating other alloy components excluding sulfur according to needs; then adding steel which contains 0 to 4kg/ton of quartz until the alkalinity of the furnace slag is 1.4 to 1.6; fi</description><language>chi ; eng</language><subject>CHEMISTRY ; METALLURGY ; METALLURGY OF IRON ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170111&DB=EPODOC&CC=CN&NR=106319146A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170111&DB=EPODOC&CC=CN&NR=106319146A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG YING</creatorcontrib><creatorcontrib>XUE ZHENGXUE</creatorcontrib><creatorcontrib>ZHANG QI</creatorcontrib><creatorcontrib>WANG XIAOLIANG</creatorcontrib><creatorcontrib>CAO LONG</creatorcontrib><creatorcontrib>LI JUN</creatorcontrib><creatorcontrib>ZHANG RONGXING</creatorcontrib><creatorcontrib>ZHANG MENGYUN</creatorcontrib><creatorcontrib>BAI LIGUO</creatorcontrib><creatorcontrib>CAO HONGBO</creatorcontrib><creatorcontrib>GUO ZHIBIN</creatorcontrib><creatorcontrib>FENG WENFU</creatorcontrib><creatorcontrib>JIA YUHUA</creatorcontrib><creatorcontrib>YE FANXIN</creatorcontrib><creatorcontrib>GUO JIAN</creatorcontrib><creatorcontrib>WU GUANGHAI</creatorcontrib><title>Refining method for 400-series free-cutting stainless steel</title><description>The invention discloses a refining method for 400-series free-cutting stainless steel. 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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 | Refining method for 400-series free-cutting stainless steel |
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