METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET HAVING SMALL ANISOTROPY
PROBLEM TO BE SOLVED: To provide a method for manufacturing a cold rolled steel sheet having a small anisotropy (Δr) of r-value. SOLUTION: This steel sheet is manufactured by a process including (1) in which steel having a composition containing, by mass, 0.01 to 0.05% C,
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| creator | FUNAKAWA YOSHIMASA MITSUZUKA KENICHI |
| description | PROBLEM TO BE SOLVED: To provide a method for manufacturing a cold rolled steel sheet having a small anisotropy (Δr) of r-value. SOLUTION: This steel sheet is manufactured by a process including (1) in which steel having a composition containing, by mass, 0.01 to 0.05% C, |
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SOLUTION: This steel sheet is manufactured by a process including (1) in which steel having a composition containing, by mass, 0.01 to 0.05% C, <=0.1% Si, <=0.5% Mn, <=0.03% S, <=0.025% P, <=0.1% Al, <=0.004% N and <=0.0035% B, further satisfying -0.0010<=N-14/11B<=0.0015, and the balance substantially Fe with inevitable impurities is subjected to hot rolling in which finish rolling temperature is controlled to Ar3 to 930 deg.C, (2) in which, after the hot rolling, within (t) sec satisfying t<=5.77-0.006×FT+250×B, cooling is started at >=200 deg.C/S and is performed to 800 to 700 deg.C; wherein FT: finish rolling temperature ( deg.C), (3) in which, after the cooling, the steel is air-cooled for >=1S, is then slowly cooled at <=40 deg.C/s and is thereafter coiled, (4) in which, after pickling, cold rolling is performed at a cold rolling ratio of <=(90-|N-14/11B|×10,000)%, and (5) in which annealing is performed at <=800 deg.C.]]></description><edition>7</edition><language>eng</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2002</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=20020109&DB=EPODOC&CC=JP&NR=2002003951A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20020109&DB=EPODOC&CC=JP&NR=2002003951A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FUNAKAWA YOSHIMASA</creatorcontrib><creatorcontrib>MITSUZUKA KENICHI</creatorcontrib><title>METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET HAVING SMALL ANISOTROPY</title><description><![CDATA[PROBLEM TO BE SOLVED: To provide a method for manufacturing a cold rolled steel sheet having a small anisotropy (Δr) of r-value. SOLUTION: This steel sheet is manufactured by a process including (1) in which steel having a composition containing, by mass, 0.01 to 0.05% C, <=0.1% Si, <=0.5% Mn, <=0.03% S, <=0.025% P, <=0.1% Al, <=0.004% N and <=0.0035% B, further satisfying -0.0010<=N-14/11B<=0.0015, and the balance substantially Fe with inevitable impurities is subjected to hot rolling in which finish rolling temperature is controlled to Ar3 to 930 deg.C, (2) in which, after the hot rolling, within (t) sec satisfying t<=5.77-0.006×FT+250×B, cooling is started at >=200 deg.C/S and is performed to 800 to 700 deg.C; wherein FT: finish rolling temperature ( deg.C), (3) in which, after the cooling, the steel is air-cooled for >=1S, is then slowly cooled at <=40 deg.C/s and is thereafter coiled, (4) in which, after pickling, cold rolling is performed at a cold rolling ratio of <=(90-|N-14/11B|×10,000)%, and (5) in which annealing is performed at <=800 deg.C.]]></description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPDwdQ3x8HdRcPMPUvB19At1c3QOCQ3y9HNXcPb3cVEI8vfxcXVRCA5xdfVRCPZwdQ1R8HAMA0kH-zr6-Cg4-nkG-4cE-QdE8jCwpiXmFKfyQmluBiU31xBnD93Ugvz41OKCxOTUvNSSeK8AIwMDIDK2NDV0NCZKEQBk2i1T</recordid><startdate>20020109</startdate><enddate>20020109</enddate><creator>FUNAKAWA YOSHIMASA</creator><creator>MITSUZUKA KENICHI</creator><scope>EVB</scope></search><sort><creationdate>20020109</creationdate><title>METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET HAVING SMALL ANISOTROPY</title><author>FUNAKAWA YOSHIMASA ; MITSUZUKA KENICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2002003951A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>FUNAKAWA YOSHIMASA</creatorcontrib><creatorcontrib>MITSUZUKA KENICHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FUNAKAWA YOSHIMASA</au><au>MITSUZUKA KENICHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET HAVING SMALL ANISOTROPY</title><date>2002-01-09</date><risdate>2002</risdate><abstract><![CDATA[PROBLEM TO BE SOLVED: To provide a method for manufacturing a cold rolled steel sheet having a small anisotropy (Δr) of r-value. SOLUTION: This steel sheet is manufactured by a process including (1) in which steel having a composition containing, by mass, 0.01 to 0.05% C, <=0.1% Si, <=0.5% Mn, <=0.03% S, <=0.025% P, <=0.1% Al, <=0.004% N and <=0.0035% B, further satisfying -0.0010<=N-14/11B<=0.0015, and the balance substantially Fe with inevitable impurities is subjected to hot rolling in which finish rolling temperature is controlled to Ar3 to 930 deg.C, (2) in which, after the hot rolling, within (t) sec satisfying t<=5.77-0.006×FT+250×B, cooling is started at >=200 deg.C/S and is performed to 800 to 700 deg.C; wherein FT: finish rolling temperature ( deg.C), (3) in which, after the cooling, the steel is air-cooled for >=1S, is then slowly cooled at <=40 deg.C/s and is thereafter coiled, (4) in which, after pickling, cold rolling is performed at a cold rolling ratio of <=(90-|N-14/11B|×10,000)%, and (5) in which annealing is performed at <=800 deg.C.]]></abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | METHOD FOR MANUFACTURING COLD ROLLED STEEL SHEET HAVING SMALL ANISOTROPY |
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