Method for smelting 904L superaustenitic stainless steel
The invention discloses a method for smelting 904L superaustenitic stainless steel. The method comprises the following steps: (1) smelting in an electric induction furnace; and (2) after tapping of the induction furnace, mixing with 40 tons of dephosphorized molten iron. (3) AOD smelting; (4) VOD (v...
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| creator | LIU BIN PAN JIXIANG SHANG YONGLU MO ZHIBIN YANG YANG CHEN XINGRUN XUE JIANHONG YANG LIMIN QIAN ZHANGXIN |
| description | The invention discloses a method for smelting 904L superaustenitic stainless steel. The method comprises the following steps: (1) smelting in an electric induction furnace; and (2) after tapping of the induction furnace, mixing with 40 tons of dephosphorized molten iron. (3) AOD smelting; (4) VOD (vacuum oxygen decarburization) refining; (5) LF refining; and (6) continuous casting is conducted, specifically, a crystallizer with the thickness being 160 mm is adopted in the continuous casting process, the tundish temperature is 1415-1430 DEG C, electromagnetic stirring is adopted for continuous casting, the current intensity is 1550 A, dynamic soft reduction is adopted at the solidification tail end, and the reduction amount is 4 mm. A 904L super austenitic stainless steel casting blank obtained through continuous casting is prepared from, by weight, smaller than or equal to 0.01% of C, 0.25%-0.45% of Si, 1.25%-1.45% of Mn, smaller than or equal to 0.020% of P, 19.60%-20.0% of Cr, 24.00%-24.20% of Ni, smaller t |
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The method comprises the following steps: (1) smelting in an electric induction furnace; and (2) after tapping of the induction furnace, mixing with 40 tons of dephosphorized molten iron. (3) AOD smelting; (4) VOD (vacuum oxygen decarburization) refining; (5) LF refining; and (6) continuous casting is conducted, specifically, a crystallizer with the thickness being 160 mm is adopted in the continuous casting process, the tundish temperature is 1415-1430 DEG C, electromagnetic stirring is adopted for continuous casting, the current intensity is 1550 A, dynamic soft reduction is adopted at the solidification tail end, and the reduction amount is 4 mm. A 904L super austenitic stainless steel casting blank obtained through continuous casting is prepared from, by weight, smaller than or equal to 0.01% of C, 0.25%-0.45% of Si, 1.25%-1.45% of Mn, smaller than or equal to 0.020% of P, 19.60%-20.0% of Cr, 24.00%-24.20% of Ni, smaller t</description><language>chi ; eng</language><subject>ALLOYS ; CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; METALLURGY OF IRON ; PERFORMING OPERATIONS ; POWDER METALLURGY ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; TRANSPORTING ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2024</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=20240419&DB=EPODOC&CC=CN&NR=117904521A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240419&DB=EPODOC&CC=CN&NR=117904521A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIU BIN</creatorcontrib><creatorcontrib>PAN JIXIANG</creatorcontrib><creatorcontrib>SHANG YONGLU</creatorcontrib><creatorcontrib>MO ZHIBIN</creatorcontrib><creatorcontrib>YANG YANG</creatorcontrib><creatorcontrib>CHEN XINGRUN</creatorcontrib><creatorcontrib>XUE JIANHONG</creatorcontrib><creatorcontrib>YANG LIMIN</creatorcontrib><creatorcontrib>QIAN ZHANGXIN</creatorcontrib><title>Method for smelting 904L superaustenitic stainless steel</title><description>The invention discloses a method for smelting 904L superaustenitic stainless steel. 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A 904L super austenitic stainless steel casting blank obtained through continuous casting is prepared from, by weight, smaller than or equal to 0.01% of C, 0.25%-0.45% of Si, 1.25%-1.45% of Mn, smaller than or equal to 0.020% of P, 19.60%-20.0% of Cr, 24.00%-24.20% of Ni, smaller t</description><subject>ALLOYS</subject><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>TRANSPORTING</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDwTS3JyE9RSMsvUijOTc0pycxLV7A0MPFRKC4tSC1KLC0uSc3LLMlMViguSczMy0ktLgayUlNzeBhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvLOfoaE50DxTI0NHY2LUAADwjy4q</recordid><startdate>20240419</startdate><enddate>20240419</enddate><creator>LIU BIN</creator><creator>PAN JIXIANG</creator><creator>SHANG YONGLU</creator><creator>MO ZHIBIN</creator><creator>YANG YANG</creator><creator>CHEN XINGRUN</creator><creator>XUE JIANHONG</creator><creator>YANG LIMIN</creator><creator>QIAN ZHANGXIN</creator><scope>EVB</scope></search><sort><creationdate>20240419</creationdate><title>Method for smelting 904L superaustenitic stainless steel</title><author>LIU BIN ; PAN JIXIANG ; SHANG YONGLU ; MO ZHIBIN ; YANG YANG ; CHEN XINGRUN ; XUE JIANHONG ; YANG LIMIN ; QIAN ZHANGXIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN117904521A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>ALLOYS</topic><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>TRANSPORTING</topic><topic>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>LIU BIN</creatorcontrib><creatorcontrib>PAN JIXIANG</creatorcontrib><creatorcontrib>SHANG YONGLU</creatorcontrib><creatorcontrib>MO ZHIBIN</creatorcontrib><creatorcontrib>YANG YANG</creatorcontrib><creatorcontrib>CHEN XINGRUN</creatorcontrib><creatorcontrib>XUE JIANHONG</creatorcontrib><creatorcontrib>YANG LIMIN</creatorcontrib><creatorcontrib>QIAN ZHANGXIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LIU BIN</au><au>PAN JIXIANG</au><au>SHANG YONGLU</au><au>MO ZHIBIN</au><au>YANG YANG</au><au>CHEN XINGRUN</au><au>XUE JIANHONG</au><au>YANG LIMIN</au><au>QIAN ZHANGXIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for smelting 904L superaustenitic stainless steel</title><date>2024-04-19</date><risdate>2024</risdate><abstract>The invention discloses a method for smelting 904L superaustenitic stainless steel. The method comprises the following steps: (1) smelting in an electric induction furnace; and (2) after tapping of the induction furnace, mixing with 40 tons of dephosphorized molten iron. (3) AOD smelting; (4) VOD (vacuum oxygen decarburization) refining; (5) LF refining; and (6) continuous casting is conducted, specifically, a crystallizer with the thickness being 160 mm is adopted in the continuous casting process, the tundish temperature is 1415-1430 DEG C, electromagnetic stirring is adopted for continuous casting, the current intensity is 1550 A, dynamic soft reduction is adopted at the solidification tail end, and the reduction amount is 4 mm. A 904L super austenitic stainless steel casting blank obtained through continuous casting is prepared from, by weight, smaller than or equal to 0.01% of C, 0.25%-0.45% of Si, 1.25%-1.45% of Mn, smaller than or equal to 0.020% of P, 19.60%-20.0% of Cr, 24.00%-24.20% of Ni, smaller t</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Method for smelting 904L superaustenitic stainless steel |
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