GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING SAME
Provided is a grain-oriented electrical steel sheet which has been subjected to heat-resistant magnetic domain refining treatment and can effectively suppress carburizing and nitriding during stress relief annealing. The grain-oriented electrical steel sheet has a plurality of grooves on one side th...
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| creator | INOUE, HIROTAKA TAKAJO, SHIGEHIRO OMURA, TAKESHI ICHIHARA, YOSHIHISA SENDA, KUNIHIRO |
| description | Provided is a grain-oriented electrical steel sheet which has been subjected to heat-resistant magnetic domain refining treatment and can effectively suppress carburizing and nitriding during stress relief annealing. The grain-oriented electrical steel sheet has a plurality of grooves on one side that extend linearly across the rolling direction and are lined up at intervals in the rolling direction, and has at least a forsterite film on a surface of the steel sheet, where an average thickness of the forsterite film formed on the floor of the grooves is 0.45 µm or more, and a standard deviation ? of the thickness is 0.34 µm or less.
L'invention concerne une tôle d'acier électromagnétique à grains orientés qui a subi un traitement d'affinage de domaine magnétique résistant à la chaleur qui permet d'empêcher efficacement la survenue d'une carburation ou d'une nitruration pendant un recuit de relaxation des contraintes. La tôle d'acier électromagnétique à grains orientés présente, sur une de ses surfaces, une pluralité de rainures qui s'étendent linéairement dans une direction perpendiculaire à une direction de laminage et sont agencées suivant des intervalles dans le sens de laminage, et elle comporte également au moins un film de revêtement forstérite sur une de ses surfaces, la moyenne des épaisseurs du film de revêtement forstérite formé sur les parties de fond des rainures étant supérieure ou égale à 0,45 ?m et l'écart-type ? des épaisseurs étant inférieur ou égal à 0,34 µm. |
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L'invention concerne une tôle d'acier électromagnétique à grains orientés qui a subi un traitement d'affinage de domaine magnétique résistant à la chaleur qui permet d'empêcher efficacement la survenue d'une carburation ou d'une nitruration pendant un recuit de relaxation des contraintes. La tôle d'acier électromagnétique à grains orientés présente, sur une de ses surfaces, une pluralité de rainures qui s'étendent linéairement dans une direction perpendiculaire à une direction de laminage et sont agencées suivant des intervalles dans le sens de laminage, et elle comporte également au moins un film de revêtement forstérite sur une de ses surfaces, la moyenne des épaisseurs du film de revêtement forstérite formé sur les parties de fond des rainures étant supérieure ou égale à 0,45 ?m et l'écart-type ? des épaisseurs étant inférieur ou égal à 0,34 µm.</description><language>eng ; fre</language><subject>ALLOYS ; BASIC ELECTRIC ELEMENTS ; CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; ELECTRICITY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; INDUCTANCES ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; MAGNETS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION ; TRANSFORMERS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2023</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=20231212&DB=EPODOC&CC=CA&NR=3167818C$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231212&DB=EPODOC&CC=CA&NR=3167818C$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>INOUE, HIROTAKA</creatorcontrib><creatorcontrib>TAKAJO, SHIGEHIRO</creatorcontrib><creatorcontrib>OMURA, TAKESHI</creatorcontrib><creatorcontrib>ICHIHARA, YOSHIHISA</creatorcontrib><creatorcontrib>SENDA, KUNIHIRO</creatorcontrib><title>GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING SAME</title><description>Provided is a grain-oriented electrical steel sheet which has been subjected to heat-resistant magnetic domain refining treatment and can effectively suppress carburizing and nitriding during stress relief annealing. The grain-oriented electrical steel sheet has a plurality of grooves on one side that extend linearly across the rolling direction and are lined up at intervals in the rolling direction, and has at least a forsterite film on a surface of the steel sheet, where an average thickness of the forsterite film formed on the floor of the grooves is 0.45 µm or more, and a standard deviation ? of the thickness is 0.34 µm or less.
L'invention concerne une tôle d'acier électromagnétique à grains orientés qui a subi un traitement d'affinage de domaine magnétique résistant à la chaleur qui permet d'empêcher efficacement la survenue d'une carburation ou d'une nitruration pendant un recuit de relaxation des contraintes. La tôle d'acier électromagnétique à grains orientés présente, sur une de ses surfaces, une pluralité de rainures qui s'étendent linéairement dans une direction perpendiculaire à une direction de laminage et sont agencées suivant des intervalles dans le sens de laminage, et elle comporte également au moins un film de revêtement forstérite sur une de ses surfaces, la moyenne des épaisseurs du film de revêtement forstérite formé sur les parties de fond des rainures étant supérieure ou égale à 0,45 ?m et l'écart-type ? des épaisseurs étant inférieur ou égal à 0,34 µm.</description><subject>ALLOYS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMICAL SURFACE TREATMENT</subject><subject>CHEMISTRY</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING MATERIAL WITH METALLIC MATERIAL</subject><subject>COATING METALLIC MATERIAL</subject><subject>DIFFUSION TREATMENT OF METALLIC MATERIAL</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>INDUCTANCES</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><subject>MAGNETS</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>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</subject><subject>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</subject><subject>TRANSFORMERS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHBzD3L09NP1D_J09QtxdVFw9XF1DgnydHb0UQgOcXUFkh6uriEKjn4uCr6uIR7-Lgr-bgq-jn6hbo7OIaFBnn7uCsGOvq48DKxpiTnFqbxQmptB3s01xNlDN7UgPz61uCAxOTUvtSTe2dHY0MzcwtDC2ZiwCgDsHitA</recordid><startdate>20231212</startdate><enddate>20231212</enddate><creator>INOUE, HIROTAKA</creator><creator>TAKAJO, SHIGEHIRO</creator><creator>OMURA, TAKESHI</creator><creator>ICHIHARA, YOSHIHISA</creator><creator>SENDA, KUNIHIRO</creator><scope>EVB</scope></search><sort><creationdate>20231212</creationdate><title>GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING SAME</title><author>INOUE, HIROTAKA ; TAKAJO, SHIGEHIRO ; OMURA, TAKESHI ; ICHIHARA, YOSHIHISA ; SENDA, KUNIHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA3167818C3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2023</creationdate><topic>ALLOYS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMICAL SURFACE TREATMENT</topic><topic>CHEMISTRY</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING MATERIAL WITH METALLIC MATERIAL</topic><topic>COATING METALLIC MATERIAL</topic><topic>DIFFUSION TREATMENT OF METALLIC MATERIAL</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>INDUCTANCES</topic><topic>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</topic><topic>MAGNETS</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>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</topic><topic>SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION</topic><topic>TRANSFORMERS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>INOUE, HIROTAKA</creatorcontrib><creatorcontrib>TAKAJO, SHIGEHIRO</creatorcontrib><creatorcontrib>OMURA, TAKESHI</creatorcontrib><creatorcontrib>ICHIHARA, YOSHIHISA</creatorcontrib><creatorcontrib>SENDA, KUNIHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>INOUE, HIROTAKA</au><au>TAKAJO, SHIGEHIRO</au><au>OMURA, TAKESHI</au><au>ICHIHARA, YOSHIHISA</au><au>SENDA, KUNIHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING SAME</title><date>2023-12-12</date><risdate>2023</risdate><abstract>Provided is a grain-oriented electrical steel sheet which has been subjected to heat-resistant magnetic domain refining treatment and can effectively suppress carburizing and nitriding during stress relief annealing. The grain-oriented electrical steel sheet has a plurality of grooves on one side that extend linearly across the rolling direction and are lined up at intervals in the rolling direction, and has at least a forsterite film on a surface of the steel sheet, where an average thickness of the forsterite film formed on the floor of the grooves is 0.45 µm or more, and a standard deviation ? of the thickness is 0.34 µm or less.
L'invention concerne une tôle d'acier électromagnétique à grains orientés qui a subi un traitement d'affinage de domaine magnétique résistant à la chaleur qui permet d'empêcher efficacement la survenue d'une carburation ou d'une nitruration pendant un recuit de relaxation des contraintes. La tôle d'acier électromagnétique à grains orientés présente, sur une de ses surfaces, une pluralité de rainures qui s'étendent linéairement dans une direction perpendiculaire à une direction de laminage et sont agencées suivant des intervalles dans le sens de laminage, et elle comporte également au moins un film de revêtement forstérite sur une de ses surfaces, la moyenne des épaisseurs du film de revêtement forstérite formé sur les parties de fond des rainures étant supérieure ou égale à 0,45 ?m et l'écart-type ? des épaisseurs étant inférieur ou égal à 0,34 µm.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INDUCTANCES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAGNETS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSFORMERS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING SAME |
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