SUPER DUPLEX STAINLESS STEEL AND MANUFACTURING METHOD THEREOF
The present invention relates to super duplex stainless steel and a manufacturing method thereof and, more specifically, relates to a super duplex stainless steel manufacturing method which improves corrosion resistance and impact toughness. The super duplex stainless steel manufacturing method comp...
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| creator | KIM, KWANG YUK KIM, WAN YI HAN, SEUNG MIN |
| description | The present invention relates to super duplex stainless steel and a manufacturing method thereof and, more specifically, relates to a super duplex stainless steel manufacturing method which improves corrosion resistance and impact toughness. The super duplex stainless steel manufacturing method comprises: a molten steel preparation step; a decarbonizing step of removing carbon included in the molten steel; a desulfurization step of forming CaO and Al_2O_3 in a ratio (At%) of 1:0.8-1.2 by injecting Ca; a continuous casting step of producing the molten steel into a slab; and a hot rolling step of producing the slab into a thick plate.
본 발명에 의한 수퍼 듀플렉스 스테인레스강 및 그 제조 방법은, 내식성 및 충격인성을 향상시킨 수퍼 듀플렉스 스테인레스강 제조 방법에 있어서, 용강 준비 단계; 상기 용강에 포함된 탄소를 제거하는 탈탄 단계; Ca을 투입하여 CaO와 AlO를 1:0.8~1.2의 비율(At%)로 형성시키는 탈황 단계; 상기 용강을 슬라브로 제조하는 연속주조 단계; 및 상기 슬라브를 후판으로 제조하는 열간압연 단계; 를 포함하는, 수퍼 듀플렉스 스테인레스강 제조 방법. |
| format | Patent |
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본 발명에 의한 수퍼 듀플렉스 스테인레스강 및 그 제조 방법은, 내식성 및 충격인성을 향상시킨 수퍼 듀플렉스 스테인레스강 제조 방법에 있어서, 용강 준비 단계; 상기 용강에 포함된 탄소를 제거하는 탈탄 단계; Ca을 투입하여 CaO와 AlO를 1:0.8~1.2의 비율(At%)로 형성시키는 탈황 단계; 상기 용강을 슬라브로 제조하는 연속주조 단계; 및 상기 슬라브를 후판으로 제조하는 열간압연 단계; 를 포함하는, 수퍼 듀플렉스 스테인레스강 제조 방법.</description><language>eng ; kor</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; METALLURGY ; METALLURGY OF IRON ; PERFORMING OPERATIONS ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; PUNCHING METAL ; ROLLING OF METAL ; TRANSPORTING ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2016</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=20160708&DB=EPODOC&CC=KR&NR=20160082329A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160708&DB=EPODOC&CC=KR&NR=20160082329A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KIM, KWANG YUK</creatorcontrib><creatorcontrib>KIM, WAN YI</creatorcontrib><creatorcontrib>HAN, SEUNG MIN</creatorcontrib><title>SUPER DUPLEX STAINLESS STEEL AND MANUFACTURING METHOD THEREOF</title><description>The present invention relates to super duplex stainless steel and a manufacturing method thereof and, more specifically, relates to a super duplex stainless steel manufacturing method which improves corrosion resistance and impact toughness. The super duplex stainless steel manufacturing method comprises: a molten steel preparation step; a decarbonizing step of removing carbon included in the molten steel; a desulfurization step of forming CaO and Al_2O_3 in a ratio (At%) of 1:0.8-1.2 by injecting Ca; a continuous casting step of producing the molten steel into a slab; and a hot rolling step of producing the slab into a thick plate.
본 발명에 의한 수퍼 듀플렉스 스테인레스강 및 그 제조 방법은, 내식성 및 충격인성을 향상시킨 수퍼 듀플렉스 스테인레스강 제조 방법에 있어서, 용강 준비 단계; 상기 용강에 포함된 탄소를 제거하는 탈탄 단계; Ca을 투입하여 CaO와 AlO를 1:0.8~1.2의 비율(At%)로 형성시키는 탈황 단계; 상기 용강을 슬라브로 제조하는 연속주조 단계; 및 상기 슬라브를 후판으로 제조하는 열간압연 단계; 를 포함하는, 수퍼 듀플렉스 스테인레스강 제조 방법.</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>PERFORMING OPERATIONS</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>PUNCHING METAL</subject><subject>ROLLING OF METAL</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>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLANDg1wDVJwCQ3wcY1QCA5x9PTzcQ0OBrJcXX0UHP1cFHwd_ULdHJ1DQoM8_dwVfF1DPPxdFEI8XINc_d14GFjTEnOKU3mhNDeDsptriLOHbmpBfnxqcUFicmpeakm8d5CRgaGZgYGFkbGRpaMxcaoA8tMq6w</recordid><startdate>20160708</startdate><enddate>20160708</enddate><creator>KIM, KWANG YUK</creator><creator>KIM, WAN YI</creator><creator>HAN, SEUNG MIN</creator><scope>EVB</scope></search><sort><creationdate>20160708</creationdate><title>SUPER DUPLEX STAINLESS STEEL AND MANUFACTURING METHOD THEREOF</title><author>KIM, KWANG YUK ; KIM, WAN YI ; HAN, SEUNG MIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20160082329A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2016</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>PERFORMING OPERATIONS</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>PUNCHING METAL</topic><topic>ROLLING OF METAL</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>KIM, KWANG YUK</creatorcontrib><creatorcontrib>KIM, WAN YI</creatorcontrib><creatorcontrib>HAN, SEUNG MIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KIM, KWANG YUK</au><au>KIM, WAN YI</au><au>HAN, SEUNG MIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SUPER DUPLEX STAINLESS STEEL AND MANUFACTURING METHOD THEREOF</title><date>2016-07-08</date><risdate>2016</risdate><abstract>The present invention relates to super duplex stainless steel and a manufacturing method thereof and, more specifically, relates to a super duplex stainless steel manufacturing method which improves corrosion resistance and impact toughness. The super duplex stainless steel manufacturing method comprises: a molten steel preparation step; a decarbonizing step of removing carbon included in the molten steel; a desulfurization step of forming CaO and Al_2O_3 in a ratio (At%) of 1:0.8-1.2 by injecting Ca; a continuous casting step of producing the molten steel into a slab; and a hot rolling step of producing the slab into a thick plate.
본 발명에 의한 수퍼 듀플렉스 스테인레스강 및 그 제조 방법은, 내식성 및 충격인성을 향상시킨 수퍼 듀플렉스 스테인레스강 제조 방법에 있어서, 용강 준비 단계; 상기 용강에 포함된 탄소를 제거하는 탈탄 단계; Ca을 투입하여 CaO와 AlO를 1:0.8~1.2의 비율(At%)로 형성시키는 탈황 단계; 상기 용강을 슬라브로 제조하는 연속주조 단계; 및 상기 슬라브를 후판으로 제조하는 열간압연 단계; 를 포함하는, 수퍼 듀플렉스 스테인레스강 제조 방법.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | SUPER DUPLEX STAINLESS STEEL AND MANUFACTURING METHOD THEREOF |
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