STAINLESS STEEL FOIL
The present invention provide a ferritic stainless steel foil having a high thickness precision even with a thickness 60 µm or less ultrathin stainless steel foil and simultaneously having a plastic deformation ability and good elongation at break, that is, having a good press-formability (deep draw...
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| creator | SAWAKI, Naoya FUJIMOTO, Naoki INAGUMA, Toru FUKUDA, Masahiro UNO, Tomohiro UNNO, Hiroto |
| description | The present invention provide a ferritic stainless steel foil having a high thickness precision even with a thickness 60 µm or less ultrathin stainless steel foil and simultaneously having a plastic deformation ability and good elongation at break, that is, having a good press-formability (deep drawing ability). The present invention is a stainless steel foil having a thickness of 5 µm to 60 µm, wherein a recrystallization ratio of said stainless steel foil is 90% to 100%, a surface layer of said stainless steel foil has a nitrogen concentration of 1.0 mass% or less, three or more crystal grains are contained in the thickness direction of said stainless steel foil, an average crystal grain diameter "d" of said crystal grains is 1 µm to 10 µm, and, when said thickness is "t" (µm), an area ratio of crystal grains having a crystal grain diameter of t/3 (µm) or more is 20% or less. |
| format | Patent |
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The present invention is a stainless steel foil having a thickness of 5 µm to 60 µm, wherein a recrystallization ratio of said stainless steel foil is 90% to 100%, a surface layer of said stainless steel foil has a nitrogen concentration of 1.0 mass% or less, three or more crystal grains are contained in the thickness direction of said stainless steel foil, an average crystal grain diameter "d" of said crystal grains is 1 µm to 10 µm, and, when said thickness is "t" (µm), an area ratio of crystal grains having a crystal grain diameter of t/3 (µm) or more is 20% or less.</description><language>eng ; fre ; ger</language><subject>ALLOYS ; BASIC ELECTRIC ELEMENTS ; CHEMISTRY ; ELECTRICITY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; LAYERED PRODUCTS ; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2019</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=20190116&DB=EPODOC&CC=EP&NR=3339461A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190116&DB=EPODOC&CC=EP&NR=3339461A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAWAKI, Naoya</creatorcontrib><creatorcontrib>FUJIMOTO, Naoki</creatorcontrib><creatorcontrib>INAGUMA, Toru</creatorcontrib><creatorcontrib>FUKUDA, Masahiro</creatorcontrib><creatorcontrib>UNO, Tomohiro</creatorcontrib><creatorcontrib>UNNO, Hiroto</creatorcontrib><title>STAINLESS STEEL FOIL</title><description>The present invention provide a ferritic stainless steel foil having a high thickness precision even with a thickness 60 µm or less ultrathin stainless steel foil and simultaneously having a plastic deformation ability and good elongation at break, that is, having a good press-formability (deep drawing ability). The present invention is a stainless steel foil having a thickness of 5 µm to 60 µm, wherein a recrystallization ratio of said stainless steel foil is 90% to 100%, a surface layer of said stainless steel foil has a nitrogen concentration of 1.0 mass% or less, three or more crystal grains are contained in the thickness direction of said stainless steel foil, an average crystal grain diameter "d" of said crystal grains is 1 µm to 10 µm, and, when said thickness is "t" (µm), an area ratio of crystal grains having a crystal grain diameter of t/3 (µm) or more is 20% or less.</description><subject>ALLOYS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMISTRY</subject><subject>ELECTRICITY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>LAYERED PRODUCTS</subject><subject>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</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>PERFORMING OPERATIONS</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAJDnH09PNxDQ5WCA5xdfVRcPP39OFhYE1LzClO5YXS3AwKbq4hzh66qQX58anFBYnJqXmpJfGuAcbGxpYmZoaOJsZEKAEAQggeQA</recordid><startdate>20190116</startdate><enddate>20190116</enddate><creator>SAWAKI, Naoya</creator><creator>FUJIMOTO, Naoki</creator><creator>INAGUMA, Toru</creator><creator>FUKUDA, Masahiro</creator><creator>UNO, Tomohiro</creator><creator>UNNO, Hiroto</creator><scope>EVB</scope></search><sort><creationdate>20190116</creationdate><title>STAINLESS STEEL FOIL</title><author>SAWAKI, Naoya ; FUJIMOTO, Naoki ; INAGUMA, Toru ; FUKUDA, Masahiro ; UNO, Tomohiro ; UNNO, Hiroto</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3339461A43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2019</creationdate><topic>ALLOYS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMISTRY</topic><topic>ELECTRICITY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>LAYERED PRODUCTS</topic><topic>LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM</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>PERFORMING OPERATIONS</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>SAWAKI, Naoya</creatorcontrib><creatorcontrib>FUJIMOTO, Naoki</creatorcontrib><creatorcontrib>INAGUMA, Toru</creatorcontrib><creatorcontrib>FUKUDA, Masahiro</creatorcontrib><creatorcontrib>UNO, Tomohiro</creatorcontrib><creatorcontrib>UNNO, Hiroto</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAWAKI, Naoya</au><au>FUJIMOTO, Naoki</au><au>INAGUMA, Toru</au><au>FUKUDA, Masahiro</au><au>UNO, Tomohiro</au><au>UNNO, Hiroto</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STAINLESS STEEL FOIL</title><date>2019-01-16</date><risdate>2019</risdate><abstract>The present invention provide a ferritic stainless steel foil having a high thickness precision even with a thickness 60 µm or less ultrathin stainless steel foil and simultaneously having a plastic deformation ability and good elongation at break, that is, having a good press-formability (deep drawing ability). The present invention is a stainless steel foil having a thickness of 5 µm to 60 µm, wherein a recrystallization ratio of said stainless steel foil is 90% to 100%, a surface layer of said stainless steel foil has a nitrogen concentration of 1.0 mass% or less, three or more crystal grains are contained in the thickness direction of said stainless steel foil, an average crystal grain diameter "d" of said crystal grains is 1 µm to 10 µm, and, when said thickness is "t" (µm), an area ratio of crystal grains having a crystal grain diameter of t/3 (µm) or more is 20% or less.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| source | esp@cenet |
| subjects | ALLOYS BASIC ELECTRIC ELEMENTS CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | STAINLESS STEEL FOIL |
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