Preparation method of one-step molded sintered neodymium-iron-boron magnet

Preparation method of one-step molded sintered neodymium-iron-boron magnet

The invention discloses a preparation method of a one-step molded sintered neodymium-iron-boron magnet. The preparation method comprises the following steps: a, smelting to obtain an alloy sheet; b, hydrogen decrepitation and powder preparation: preparing the obtained alloy sheet into coarse powder...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: YU WENBIN, HOU SHAOTENG, HUANG WEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator YU WENBIN
HOU SHAOTENG
HUANG WEI
description The invention discloses a preparation method of a one-step molded sintered neodymium-iron-boron magnet. The preparation method comprises the following steps: a, smelting to obtain an alloy sheet; b, hydrogen decrepitation and powder preparation: preparing the obtained alloy sheet into coarse powder by adopting a hydrogen decrepitation process, preparing the coarse powder into fine powder by virtue of airflow grinding, pouring the fine powder into an active stirring device for stirring, adding an agent by virtue of an agent adding device in the stirring process, and sub-packaging the powder into a powder barrel after the stirring is completed; c, pressing: enabling the powder in the powder barrel to fall into a feeding device, homogenizing the apparent density of the powder in the feeding device by adopting a homogenizing device, progressively adding the powder in the feeding device into a die cavity by controlling the floating speed of a female die of a pressing machine, and pressing the powder into a one-ste
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN114300247A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN114300247A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN114300247A3</originalsourceid><addsrcrecordid>eNrjZPAKKEotSCxKLMnMz1PITS3JyE9RyE9TyM9L1S0uSS1QyM3PSUlNUSjOzCtJLQIy8lLzUypzM0tzdTOL8vN0k_KLQPoS0_NSS3gYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyKlBVvLOfoaGJsYGBkYm5ozExagBLLzVb</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Preparation method of one-step molded sintered neodymium-iron-boron magnet</title><source>esp@cenet</source><creator>YU WENBIN ; HOU SHAOTENG ; HUANG WEI</creator><creatorcontrib>YU WENBIN ; HOU SHAOTENG ; HUANG WEI</creatorcontrib><description>The invention discloses a preparation method of a one-step molded sintered neodymium-iron-boron magnet. The preparation method comprises the following steps: a, smelting to obtain an alloy sheet; b, hydrogen decrepitation and powder preparation: preparing the obtained alloy sheet into coarse powder by adopting a hydrogen decrepitation process, preparing the coarse powder into fine powder by virtue of airflow grinding, pouring the fine powder into an active stirring device for stirring, adding an agent by virtue of an agent adding device in the stirring process, and sub-packaging the powder into a powder barrel after the stirring is completed; c, pressing: enabling the powder in the powder barrel to fall into a feeding device, homogenizing the apparent density of the powder in the feeding device by adopting a homogenizing device, progressively adding the powder in the feeding device into a die cavity by controlling the floating speed of a female die of a pressing machine, and pressing the powder into a one-ste</description><language>chi ; eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRICITY ; INDUCTANCES ; MAGNETS ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; TRANSFORMERS</subject><creationdate>2022</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&amp;date=20220408&amp;DB=EPODOC&amp;CC=CN&amp;NR=114300247A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20220408&amp;DB=EPODOC&amp;CC=CN&amp;NR=114300247A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YU WENBIN</creatorcontrib><creatorcontrib>HOU SHAOTENG</creatorcontrib><creatorcontrib>HUANG WEI</creatorcontrib><title>Preparation method of one-step molded sintered neodymium-iron-boron magnet</title><description>The invention discloses a preparation method of a one-step molded sintered neodymium-iron-boron magnet. The preparation method comprises the following steps: a, smelting to obtain an alloy sheet; b, hydrogen decrepitation and powder preparation: preparing the obtained alloy sheet into coarse powder by adopting a hydrogen decrepitation process, preparing the coarse powder into fine powder by virtue of airflow grinding, pouring the fine powder into an active stirring device for stirring, adding an agent by virtue of an agent adding device in the stirring process, and sub-packaging the powder into a powder barrel after the stirring is completed; c, pressing: enabling the powder in the powder barrel to fall into a feeding device, homogenizing the apparent density of the powder in the feeding device by adopting a homogenizing device, progressively adding the powder in the feeding device into a die cavity by controlling the floating speed of a female die of a pressing machine, and pressing the powder into a one-ste</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRICITY</subject><subject>INDUCTANCES</subject><subject>MAGNETS</subject><subject>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</subject><subject>TRANSFORMERS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPAKKEotSCxKLMnMz1PITS3JyE9RyE9TyM9L1S0uSS1QyM3PSUlNUSjOzCtJLQIy8lLzUypzM0tzdTOL8vN0k_KLQPoS0_NSS3gYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyKlBVvLOfoaGJsYGBkYm5ozExagBLLzVb</recordid><startdate>20220408</startdate><enddate>20220408</enddate><creator>YU WENBIN</creator><creator>HOU SHAOTENG</creator><creator>HUANG WEI</creator><scope>EVB</scope></search><sort><creationdate>20220408</creationdate><title>Preparation method of one-step molded sintered neodymium-iron-boron magnet</title><author>YU WENBIN ; HOU SHAOTENG ; HUANG WEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN114300247A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRICITY</topic><topic>INDUCTANCES</topic><topic>MAGNETS</topic><topic>SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES</topic><topic>TRANSFORMERS</topic><toplevel>online_resources</toplevel><creatorcontrib>YU WENBIN</creatorcontrib><creatorcontrib>HOU SHAOTENG</creatorcontrib><creatorcontrib>HUANG WEI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YU WENBIN</au><au>HOU SHAOTENG</au><au>HUANG WEI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Preparation method of one-step molded sintered neodymium-iron-boron magnet</title><date>2022-04-08</date><risdate>2022</risdate><abstract>The invention discloses a preparation method of a one-step molded sintered neodymium-iron-boron magnet. The preparation method comprises the following steps: a, smelting to obtain an alloy sheet; b, hydrogen decrepitation and powder preparation: preparing the obtained alloy sheet into coarse powder by adopting a hydrogen decrepitation process, preparing the coarse powder into fine powder by virtue of airflow grinding, pouring the fine powder into an active stirring device for stirring, adding an agent by virtue of an agent adding device in the stirring process, and sub-packaging the powder into a powder barrel after the stirring is completed; c, pressing: enabling the powder in the powder barrel to fall into a feeding device, homogenizing the apparent density of the powder in the feeding device by adopting a homogenizing device, progressively adding the powder in the feeding device into a die cavity by controlling the floating speed of a female die of a pressing machine, and pressing the powder into a one-ste</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language chi ; eng
recordid cdi_epo_espacenet_CN114300247A
source esp@cenet
subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
title Preparation method of one-step molded sintered neodymium-iron-boron magnet
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T05%3A39%3A55IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=YU%20WENBIN&rft.date=2022-04-08&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN114300247A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true