Rare earth permanent magnet alloy scale and neodymium iron boron permanent magnet
The invention provides a rare earth permanent magnet alloy scale and a neodymium iron boron permanent magnet, and two end faces formed in the length direction and the width direction of the rare earth permanent magnet alloy scale are a quenching roller contact end face and a free face end face oppos...
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| creator | HU XINDE SU GUODONG XUE MENG YU YONGJIANG BU WEIWEI |
| description | The invention provides a rare earth permanent magnet alloy scale and a neodymium iron boron permanent magnet, and two end faces formed in the length direction and the width direction of the rare earth permanent magnet alloy scale are a quenching roller contact end face and a free face end face opposite to the quenching roller contact end face respectively. The cross section of the rare earth permanent magnet alloy scale parallel to the thickness direction of the rare earth permanent magnet alloy scale comprises a plurality of columnar crystals; according to the method, NH3, H2 and other reducing gases are adopted for cooling the non-roller-attached surfaces (free end surfaces) of the rare earth permanent magnet alloy scales in the smelting and casting process, so that the two surfaces of the rare earth permanent magnet alloy scales are cooled at the same time, the rare earth permanent magnet alloy scales are rapidly cooled and crystallized, the grain growth time is shortened, and generation of alpha-Fe and ot |
| format | Patent |
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The cross section of the rare earth permanent magnet alloy scale parallel to the thickness direction of the rare earth permanent magnet alloy scale comprises a plurality of columnar crystals; according to the method, NH3, H2 and other reducing gases are adopted for cooling the non-roller-attached surfaces (free end surfaces) of the rare earth permanent magnet alloy scales in the smelting and casting process, so that the two surfaces of the rare earth permanent magnet alloy scales are cooled at the same time, the rare earth permanent magnet alloy scales are rapidly cooled and crystallized, the grain growth time is shortened, and generation of alpha-Fe and ot</description><language>chi ; eng</language><subject>ALLOYS ; BASIC ELECTRIC ELEMENTS ; CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; CHEMISTRY ; ELECTRICITY ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; INDUCTANCES ; MAGNETS ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; MAKING METALLIC POWDER ; MANUFACTURE OF ARTICLES FROM METALLIC POWDER ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; POWDER METALLURGY ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; TRANSFORMERS ; TRANSPORTING ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WORKING METALLIC POWDER</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=20231205&DB=EPODOC&CC=CN&NR=117174420A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20231205&DB=EPODOC&CC=CN&NR=117174420A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HU XINDE</creatorcontrib><creatorcontrib>SU GUODONG</creatorcontrib><creatorcontrib>XUE MENG</creatorcontrib><creatorcontrib>YU YONGJIANG</creatorcontrib><creatorcontrib>BU WEIWEI</creatorcontrib><title>Rare earth permanent magnet alloy scale and neodymium iron boron permanent magnet</title><description>The invention provides a rare earth permanent magnet alloy scale and a neodymium iron boron permanent magnet, and two end faces formed in the length direction and the width direction of the rare earth permanent magnet alloy scale are a quenching roller contact end face and a free face end face opposite to the quenching roller contact end face respectively. The cross section of the rare earth permanent magnet alloy scale parallel to the thickness direction of the rare earth permanent magnet alloy scale comprises a plurality of columnar crystals; according to the method, NH3, H2 and other reducing gases are adopted for cooling the non-roller-attached surfaces (free end surfaces) of the rare earth permanent magnet alloy scales in the smelting and casting process, so that the two surfaces of the rare earth permanent magnet alloy scales are cooled at the same time, the rare earth permanent magnet alloy scales are rapidly cooled and crystallized, the grain growth time is shortened, and generation of alpha-Fe and ot</description><subject>ALLOYS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</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>INDUCTANCES</subject><subject>MAGNETS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>MAKING METALLIC POWDER</subject><subject>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</subject><subject>TRANSFORMERS</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>WORKING METALLIC POWDER</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZAgMSixKVUhNLCrJUChILcpNzEvNK1HITUzPSy1RSMzJya9UKE5OzElVSMxLUchLzU-pzM0szVXILMrPU0jKB5HoungYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyKlBVvLOfoaG5obmJiZGBozExagDcUjfD</recordid><startdate>20231205</startdate><enddate>20231205</enddate><creator>HU XINDE</creator><creator>SU GUODONG</creator><creator>XUE MENG</creator><creator>YU YONGJIANG</creator><creator>BU WEIWEI</creator><scope>EVB</scope></search><sort><creationdate>20231205</creationdate><title>Rare earth permanent magnet alloy scale and neodymium iron boron permanent magnet</title><author>HU XINDE ; SU GUODONG ; XUE MENG ; YU YONGJIANG ; BU WEIWEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN117174420A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2023</creationdate><topic>ALLOYS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</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>INDUCTANCES</topic><topic>MAGNETS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>MAKING METALLIC POWDER</topic><topic>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</topic><topic>TRANSFORMERS</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>WORKING METALLIC POWDER</topic><toplevel>online_resources</toplevel><creatorcontrib>HU XINDE</creatorcontrib><creatorcontrib>SU GUODONG</creatorcontrib><creatorcontrib>XUE MENG</creatorcontrib><creatorcontrib>YU YONGJIANG</creatorcontrib><creatorcontrib>BU WEIWEI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HU XINDE</au><au>SU GUODONG</au><au>XUE MENG</au><au>YU YONGJIANG</au><au>BU WEIWEI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Rare earth permanent magnet alloy scale and neodymium iron boron permanent magnet</title><date>2023-12-05</date><risdate>2023</risdate><abstract>The invention provides a rare earth permanent magnet alloy scale and a neodymium iron boron permanent magnet, and two end faces formed in the length direction and the width direction of the rare earth permanent magnet alloy scale are a quenching roller contact end face and a free face end face opposite to the quenching roller contact end face respectively. The cross section of the rare earth permanent magnet alloy scale parallel to the thickness direction of the rare earth permanent magnet alloy scale comprises a plurality of columnar crystals; according to the method, NH3, H2 and other reducing gases are adopted for cooling the non-roller-attached surfaces (free end surfaces) of the rare earth permanent magnet alloy scales in the smelting and casting process, so that the two surfaces of the rare earth permanent magnet alloy scales are cooled at the same time, the rare earth permanent magnet alloy scales are rapidly cooled and crystallized, the grain growth time is shortened, and generation of alpha-Fe and ot</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ALLOYS BASIC ELECTRIC ELEMENTS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY ELECTRICITY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INDUCTANCES MAGNETS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER |
| title | Rare earth permanent magnet alloy scale and neodymium iron boron permanent magnet |
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