METHOD FOR MANUFACTURING BEARING STEEL WIRE ROD HAVING EXCELLENT DURABILITY AND ABRASION RESISTANCE
PURPOSE: A method for manufacturing a bearing steel wire rod is provided to obtain a bearing steel wire rod with excellent durability and abrasion resistance by properly controlling the tapping temperature from a converter, the heating-up time of an LF(Ladle Furnace) process, and the molten steel ci...
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| creator | JUNG, SUNG HAN LEE, WHAN HEE CHOI, JIN DOO |
| description | PURPOSE: A method for manufacturing a bearing steel wire rod is provided to obtain a bearing steel wire rod with excellent durability and abrasion resistance by properly controlling the tapping temperature from a converter, the heating-up time of an LF(Ladle Furnace) process, and the molten steel circulation time of an RH(Ruhrstahl-Heraeus) process. CONSTITUTION: A method for manufacturing a bearing steel wire rod having excellent durability and abrasion resistance comprises a step of making molten steel, which comprises C of 0.9-1.4 weight%, Si of 0.15-0.25 weight%, Mn of 0.25-0.45 weight%, Cr of 1.3-1.6 weight%, P of 0.02 weight% or less, S of 0.008 weight% or less, and Fe and inevitable impurities of the remaining amount, in a converter, a step of tapping the molten steel at a temperature of 1630-1680°C, performing an LF process with a heating-up time of 10-19 minutes, performing an RH process with a molten steel circulation time of 25-35 minutes and casting the molten steel, and a step of rolling the cast billet into a wire rod. |
| format | Patent |
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CONSTITUTION: A method for manufacturing a bearing steel wire rod having excellent durability and abrasion resistance comprises a step of making molten steel, which comprises C of 0.9-1.4 weight%, Si of 0.15-0.25 weight%, Mn of 0.25-0.45 weight%, Cr of 1.3-1.6 weight%, P of 0.02 weight% or less, S of 0.008 weight% or less, and Fe and inevitable impurities of the remaining amount, in a converter, a step of tapping the molten steel at a temperature of 1630-1680°C, performing an LF process with a heating-up time of 10-19 minutes, performing an RH process with a molten steel circulation time of 25-35 minutes and casting the molten steel, and a step of rolling the cast billet into a wire rod.</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>2012</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=20120703&DB=EPODOC&CC=KR&NR=20120071587A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120703&DB=EPODOC&CC=KR&NR=20120071587A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JUNG, SUNG HAN</creatorcontrib><creatorcontrib>LEE, WHAN HEE</creatorcontrib><creatorcontrib>CHOI, JIN DOO</creatorcontrib><title>METHOD FOR MANUFACTURING BEARING STEEL WIRE ROD HAVING EXCELLENT DURABILITY AND ABRASION RESISTANCE</title><description>PURPOSE: A method for manufacturing a bearing steel wire rod is provided to obtain a bearing steel wire rod with excellent durability and abrasion resistance by properly controlling the tapping temperature from a converter, the heating-up time of an LF(Ladle Furnace) process, and the molten steel circulation time of an RH(Ruhrstahl-Heraeus) process. CONSTITUTION: A method for manufacturing a bearing steel wire rod having excellent durability and abrasion resistance comprises a step of making molten steel, which comprises C of 0.9-1.4 weight%, Si of 0.15-0.25 weight%, Mn of 0.25-0.45 weight%, Cr of 1.3-1.6 weight%, P of 0.02 weight% or less, S of 0.008 weight% or less, and Fe and inevitable impurities of the remaining amount, in a converter, a step of tapping the molten steel at a temperature of 1630-1680°C, performing an LF process with a heating-up time of 10-19 minutes, performing an RH process with a molten steel circulation time of 25-35 minutes and casting the molten steel, and a step of rolling the cast billet into a wire rod.</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>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyssKgkAUgGE3LaJ6hwOtAzVCt8fx2AyNI5w5dlmJyLSKEuz96UIP0OqDn38eDTWJbkqoGoYaXVuhkpaN20NB-NULkYWTYQJ-jxqPn0pnRdaSEyhbxsJYIxdAVwIWjN40Dpi88YJO0TKaXfvbFFY_F9G6IlF6E8ZHF6axH8I9PLsDp3GSxnGW7PIMt_9dL-pUNSI</recordid><startdate>20120703</startdate><enddate>20120703</enddate><creator>JUNG, SUNG HAN</creator><creator>LEE, WHAN HEE</creator><creator>CHOI, JIN DOO</creator><scope>EVB</scope></search><sort><creationdate>20120703</creationdate><title>METHOD FOR MANUFACTURING BEARING STEEL WIRE ROD HAVING EXCELLENT DURABILITY AND ABRASION RESISTANCE</title><author>JUNG, SUNG HAN ; LEE, WHAN HEE ; CHOI, JIN DOO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20120071587A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2012</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>JUNG, SUNG HAN</creatorcontrib><creatorcontrib>LEE, WHAN HEE</creatorcontrib><creatorcontrib>CHOI, JIN DOO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JUNG, SUNG HAN</au><au>LEE, WHAN HEE</au><au>CHOI, JIN DOO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR MANUFACTURING BEARING STEEL WIRE ROD HAVING EXCELLENT DURABILITY AND ABRASION RESISTANCE</title><date>2012-07-03</date><risdate>2012</risdate><abstract>PURPOSE: A method for manufacturing a bearing steel wire rod is provided to obtain a bearing steel wire rod with excellent durability and abrasion resistance by properly controlling the tapping temperature from a converter, the heating-up time of an LF(Ladle Furnace) process, and the molten steel circulation time of an RH(Ruhrstahl-Heraeus) process. CONSTITUTION: A method for manufacturing a bearing steel wire rod having excellent durability and abrasion resistance comprises a step of making molten steel, which comprises C of 0.9-1.4 weight%, Si of 0.15-0.25 weight%, Mn of 0.25-0.45 weight%, Cr of 1.3-1.6 weight%, P of 0.02 weight% or less, S of 0.008 weight% or less, and Fe and inevitable impurities of the remaining amount, in a converter, a step of tapping the molten steel at a temperature of 1630-1680°C, performing an LF process with a heating-up time of 10-19 minutes, performing an RH process with a molten steel circulation time of 25-35 minutes and casting the molten steel, and a step of rolling the cast billet into a wire rod.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; kor |
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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 | METHOD FOR MANUFACTURING BEARING STEEL WIRE ROD HAVING EXCELLENT DURABILITY AND ABRASION RESISTANCE |
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