PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE
UN PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE CONSISTE A LAMINER A CHAUD UNE BRAME D'ACIER CONTENANT DES QUANTITES DETERMINEES DE CARBONE, DE MANGANESE, DE PHOSPHORE, D'ALUMINIUM SOLUBLE ET D'AZ...
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| creator | NAKAOKA KAZUHIDE HOSOYA YOSHIHIRO KAZUHIDE NAKAOKA, AKIHIKO NISHIOTO ET YOSHIHIRO HOSOYA NISHIOTO AKIHIKO |
| description | UN PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE CONSISTE A LAMINER A CHAUD UNE BRAME D'ACIER CONTENANT DES QUANTITES DETERMINEES DE CARBONE, DE MANGANESE, DE PHOSPHORE, D'ALUMINIUM SOLUBLE ET D'AZOTE, BOBINER LA BANDE A UNE TEMPERATURE DE 650 A 770C, LAMINER A FROID LA BANDE BOBINEE, SOUMETTRE LA BANDE LAMINEE A FROID A UN RECUIT CONTINU DE DUREE DETERMINEE ENTRE 750 ET 880C, REFROIDIR DANS DES CONDITIONS DETERMINEES LA BANDE LAMINEE A FROID POUR LUI DONNER UNE STRUCTURE A DOUBLE PHASE DE FERRITE ET DE PHASE DE TRANSFORMATION A BASSE TEMPERATURE PUIS EFFECTUER UN TRAITEMENT DE SURVIEILLISSEMENT DE DUREE DETERMINEE ENTRE 260 ET 360C POUR LUI CONFERER D'EXCELLENTES PROPRIETES PERMETTANT NOTAMMENT DE L'UTILISER POUR LA FABRICATION DES CARROSSERIES D'AUTOMOBILES.
A method for manufacturing a high-strength cold-rolled steel strip excellent in press-formability, which comprises the steps of: preparing a slab of an aluminum-killed steel consisting essentially of, in weight percentage: -Carbon from 0.02 to 0.06%, -Manganese from 0.06 to 0.25%, -Phosphorus from 0.01 to 0.06%, -Soluble aluminum from 0.020 to 0.060%, -Nitrogen up to 0.005%, and - the balance iron and incidental impurities; hot-rolling said slab to prepare a hot-rolled steel strip; coiling said steel strip at a temperature within the range of from 650 DEG to 770 DEG C.; cold-rolling said hot-rolled steel strip thus coiled to prepare a cold-rolled steel strip; subjecting said cold-rolled steel strip to a continuous annealing treatment for a prescribed period of time at a temperature within the range of from 750 DEG to 880 DEG C.; cooling said cold-rolled steel strip continuously annealed at a cooling rate of at least: exp {-5.6 (Cwt. % gamma +Mn wt. %/6+Si wt. %/24)+7.8} DEG C./sec from a temperature region of from Ar1 to Ar1+60 DEG C. to convert the structure thereof into a dual-phase structure of ferrite and a low-temperature transformation phase; and then, subjecting said cold-rolled steel strip having said dual-phase structure to an over-ageing treatment for a prescribed period of time at a temperature within the range of from 260 DEG to 360 DEG C. |
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A method for manufacturing a high-strength cold-rolled steel strip excellent in press-formability, which comprises the steps of: preparing a slab of an aluminum-killed steel consisting essentially of, in weight percentage: -Carbon from 0.02 to 0.06%, -Manganese from 0.06 to 0.25%, -Phosphorus from 0.01 to 0.06%, -Soluble aluminum from 0.020 to 0.060%, -Nitrogen up to 0.005%, and - the balance iron and incidental impurities; hot-rolling said slab to prepare a hot-rolled steel strip; coiling said steel strip at a temperature within the range of from 650 DEG to 770 DEG C.; cold-rolling said hot-rolled steel strip thus coiled to prepare a cold-rolled steel strip; subjecting said cold-rolled steel strip to a continuous annealing treatment for a prescribed period of time at a temperature within the range of from 750 DEG to 880 DEG C.; cooling said cold-rolled steel strip continuously annealed at a cooling rate of at least: exp {-5.6 (Cwt. % gamma +Mn wt. %/6+Si wt. %/24)+7.8} DEG C./sec from a temperature region of from Ar1 to Ar1+60 DEG C. to convert the structure thereof into a dual-phase structure of ferrite and a low-temperature transformation phase; and then, subjecting said cold-rolled steel strip having said dual-phase structure to an over-ageing treatment for a prescribed period of time at a temperature within the range of from 260 DEG to 360 DEG C.</description><language>fre</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 ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; PUNCHING METAL ; ROLLING OF METAL ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1981</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=19810626&DB=EPODOC&CC=FR&NR=2472021A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19810626&DB=EPODOC&CC=FR&NR=2472021A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKAOKA KAZUHIDE</creatorcontrib><creatorcontrib>HOSOYA YOSHIHIRO</creatorcontrib><creatorcontrib>KAZUHIDE NAKAOKA, AKIHIKO NISHIOTO ET YOSHIHIRO HOSOYA</creatorcontrib><creatorcontrib>NISHIOTO AKIHIKO</creatorcontrib><title>PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE</title><description>UN PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE CONSISTE A LAMINER A CHAUD UNE BRAME D'ACIER CONTENANT DES QUANTITES DETERMINEES DE CARBONE, DE MANGANESE, DE PHOSPHORE, D'ALUMINIUM SOLUBLE ET D'AZOTE, BOBINER LA BANDE A UNE TEMPERATURE DE 650 A 770C, LAMINER A FROID LA BANDE BOBINEE, SOUMETTRE LA BANDE LAMINEE A FROID A UN RECUIT CONTINU DE DUREE DETERMINEE ENTRE 750 ET 880C, REFROIDIR DANS DES CONDITIONS DETERMINEES LA BANDE LAMINEE A FROID POUR LUI DONNER UNE STRUCTURE A DOUBLE PHASE DE FERRITE ET DE PHASE DE TRANSFORMATION A BASSE TEMPERATURE PUIS EFFECTUER UN TRAITEMENT DE SURVIEILLISSEMENT DE DUREE DETERMINEE ENTRE 260 ET 360C POUR LUI CONFERER D'EXCELLENTES PROPRIETES PERMETTANT NOTAMMENT DE L'UTILISER POUR LA FABRICATION DES CARROSSERIES D'AUTOMOBILES.
A method for manufacturing a high-strength cold-rolled steel strip excellent in press-formability, which comprises the steps of: preparing a slab of an aluminum-killed steel consisting essentially of, in weight percentage: -Carbon from 0.02 to 0.06%, -Manganese from 0.06 to 0.25%, -Phosphorus from 0.01 to 0.06%, -Soluble aluminum from 0.020 to 0.060%, -Nitrogen up to 0.005%, and - the balance iron and incidental impurities; hot-rolling said slab to prepare a hot-rolled steel strip; coiling said steel strip at a temperature within the range of from 650 DEG to 770 DEG C.; cold-rolling said hot-rolled steel strip thus coiled to prepare a cold-rolled steel strip; subjecting said cold-rolled steel strip to a continuous annealing treatment for a prescribed period of time at a temperature within the range of from 750 DEG to 880 DEG C.; cooling said cold-rolled steel strip continuously annealed at a cooling rate of at least: exp {-5.6 (Cwt. % gamma +Mn wt. %/6+Si wt. %/24)+7.8} DEG C./sec from a temperature region of from Ar1 to Ar1+60 DEG C. to convert the structure thereof into a dual-phase structure of ferrite and a low-temperature transformation phase; and then, subjecting said cold-rolled steel strip having said dual-phase structure to an over-ageing treatment for a prescribed period of time at a temperature within the range of from 260 DEG to 360 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>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>PERFORMING OPERATIONS</subject><subject>PUNCHING METAL</subject><subject>ROLLING OF METAL</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1981</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjEEKwjAQRbtxIeodZudKsFVwPU0nNpAmcZpAXZUicSVaqAfw6EbxAK4-_Pffn2cvx1ZQReBsYJBYsjoFYgiGoESTQLVGoVKDUGPwBEytaj0aQaCxUYYoIclWVYBnNP6rUidIazJpj84rH9IRBpCWGzx-BI3g0lNLy2x2HW5TXP1ykYEkL-pNHB99nMbhEu_x2Usu9odiW-SY7_6YvAFfzTqx</recordid><startdate>19810626</startdate><enddate>19810626</enddate><creator>NAKAOKA KAZUHIDE</creator><creator>HOSOYA YOSHIHIRO</creator><creator>KAZUHIDE NAKAOKA, AKIHIKO NISHIOTO ET YOSHIHIRO HOSOYA</creator><creator>NISHIOTO AKIHIKO</creator><scope>EVB</scope></search><sort><creationdate>19810626</creationdate><title>PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE</title><author>NAKAOKA KAZUHIDE ; HOSOYA YOSHIHIRO ; KAZUHIDE NAKAOKA, AKIHIKO NISHIOTO ET YOSHIHIRO HOSOYA ; NISHIOTO AKIHIKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_FR2472021A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>fre</language><creationdate>1981</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>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>PERFORMING OPERATIONS</topic><topic>PUNCHING METAL</topic><topic>ROLLING OF METAL</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>NAKAOKA KAZUHIDE</creatorcontrib><creatorcontrib>HOSOYA YOSHIHIRO</creatorcontrib><creatorcontrib>KAZUHIDE NAKAOKA, AKIHIKO NISHIOTO ET YOSHIHIRO HOSOYA</creatorcontrib><creatorcontrib>NISHIOTO AKIHIKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAKAOKA KAZUHIDE</au><au>HOSOYA YOSHIHIRO</au><au>KAZUHIDE NAKAOKA, AKIHIKO NISHIOTO ET YOSHIHIRO HOSOYA</au><au>NISHIOTO AKIHIKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE</title><date>1981-06-26</date><risdate>1981</risdate><abstract>UN PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE CONSISTE A LAMINER A CHAUD UNE BRAME D'ACIER CONTENANT DES QUANTITES DETERMINEES DE CARBONE, DE MANGANESE, DE PHOSPHORE, D'ALUMINIUM SOLUBLE ET D'AZOTE, BOBINER LA BANDE A UNE TEMPERATURE DE 650 A 770C, LAMINER A FROID LA BANDE BOBINEE, SOUMETTRE LA BANDE LAMINEE A FROID A UN RECUIT CONTINU DE DUREE DETERMINEE ENTRE 750 ET 880C, REFROIDIR DANS DES CONDITIONS DETERMINEES LA BANDE LAMINEE A FROID POUR LUI DONNER UNE STRUCTURE A DOUBLE PHASE DE FERRITE ET DE PHASE DE TRANSFORMATION A BASSE TEMPERATURE PUIS EFFECTUER UN TRAITEMENT DE SURVIEILLISSEMENT DE DUREE DETERMINEE ENTRE 260 ET 360C POUR LUI CONFERER D'EXCELLENTES PROPRIETES PERMETTANT NOTAMMENT DE L'UTILISER POUR LA FABRICATION DES CARROSSERIES D'AUTOMOBILES.
A method for manufacturing a high-strength cold-rolled steel strip excellent in press-formability, which comprises the steps of: preparing a slab of an aluminum-killed steel consisting essentially of, in weight percentage: -Carbon from 0.02 to 0.06%, -Manganese from 0.06 to 0.25%, -Phosphorus from 0.01 to 0.06%, -Soluble aluminum from 0.020 to 0.060%, -Nitrogen up to 0.005%, and - the balance iron and incidental impurities; hot-rolling said slab to prepare a hot-rolled steel strip; coiling said steel strip at a temperature within the range of from 650 DEG to 770 DEG C.; cold-rolling said hot-rolled steel strip thus coiled to prepare a cold-rolled steel strip; subjecting said cold-rolled steel strip to a continuous annealing treatment for a prescribed period of time at a temperature within the range of from 750 DEG to 880 DEG C.; cooling said cold-rolled steel strip continuously annealed at a cooling rate of at least: exp {-5.6 (Cwt. % gamma +Mn wt. %/6+Si wt. %/24)+7.8} DEG C./sec from a temperature region of from Ar1 to Ar1+60 DEG C. to convert the structure thereof into a dual-phase structure of ferrite and a low-temperature transformation phase; and then, subjecting said cold-rolled steel strip having said dual-phase structure to an over-ageing treatment for a prescribed period of time at a temperature within the range of from 260 DEG to 360 DEG C.</abstract><oa>free_for_read</oa></addata></record> |
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| recordid | cdi_epo_espacenet_FR2472021A1 |
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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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | PROCEDE POUR FABRIQUER UNE BANDE D'ACIER A HAUTE RESISTANCE LAMINEE A FROID AYANT UNE EXCELLENTE APTITUDE AU FORMAGE A LA PRESSE |
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