Preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution
The invention discloses a preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution, and the preparation method specifically comprises the following steps: S1, reducing tungsten trioxide in a hydrogen reduction furnace to obtain low-oxygen-conten...
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| creator | ZHONG ZHICHAO HE YUNNAN WANG YUE ZHOU XICHENG LONG BENFU CHAI ZHAOYUAN LIN GAOAN CAO YOUDONG |
| description | The invention discloses a preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution, and the preparation method specifically comprises the following steps: S1, reducing tungsten trioxide in a hydrogen reduction furnace to obtain low-oxygen-content tungsten oxide WOX, x being 2-3; s2, the low-oxygen-content tungsten oxide obtained in the step S1 is sieved, and water remaining in tungsten oxide powder is removed; s3, reducing the low-oxygen-content tungsten oxide sieved in the step S2 into tungsten powder in a hydrogen reduction furnace; and S4, the tungsten powder obtained in the step S3 is sieved and blended. According to the preparation method of the low-oxygen-content submicron tungsten powder with the concentrated particle size distribution, the produced submicron tungsten powder is high in sphericity degree, uniform in morphology, perfect in crystallization, concentrated in particle size distribution and low in oxygen content.
本发明公开了一种粒度分布集中的低氧含量亚微细钨粉的 |
| format | Patent |
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本发明公开了一种粒度分布集中的低氧含量亚微细钨粉的</description><language>chi ; eng</language><subject>CASTING ; MAKING METALLIC POWDER ; MANUFACTURE OF ARTICLES FROM METALLIC POWDER ; PERFORMING OPERATIONS ; POWDER METALLURGY ; TRANSPORTING ; WORKING METALLIC POWDER</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&date=20220805&DB=EPODOC&CC=CN&NR=114850486A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220805&DB=EPODOC&CC=CN&NR=114850486A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHONG ZHICHAO</creatorcontrib><creatorcontrib>HE YUNNAN</creatorcontrib><creatorcontrib>WANG YUE</creatorcontrib><creatorcontrib>ZHOU XICHENG</creatorcontrib><creatorcontrib>LONG BENFU</creatorcontrib><creatorcontrib>CHAI ZHAOYUAN</creatorcontrib><creatorcontrib>LIN GAOAN</creatorcontrib><creatorcontrib>CAO YOUDONG</creatorcontrib><title>Preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution</title><description>The invention discloses a preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution, and the preparation method specifically comprises the following steps: S1, reducing tungsten trioxide in a hydrogen reduction furnace to obtain low-oxygen-content tungsten oxide WOX, x being 2-3; s2, the low-oxygen-content tungsten oxide obtained in the step S1 is sieved, and water remaining in tungsten oxide powder is removed; s3, reducing the low-oxygen-content tungsten oxide sieved in the step S2 into tungsten powder in a hydrogen reduction furnace; and S4, the tungsten powder obtained in the step S3 is sieved and blended. According to the preparation method of the low-oxygen-content submicron tungsten powder with the concentrated particle size distribution, the produced submicron tungsten powder is high in sphericity degree, uniform in morphology, perfect in crystallization, concentrated in particle size distribution and low in oxygen content.
本发明公开了一种粒度分布集中的低氧含量亚微细钨粉的</description><subject>CASTING</subject><subject>MAKING METALLIC POWDER</subject><subject>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>TRANSPORTING</subject><subject>WORKING METALLIC POWDER</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNzUEKwjAQheFuXIh6h_EABYtVupWiuBIX7kuaTNtAmgnJlKqndwQP4Grg8fHPMqN7xKCiYkseRuSBDFAHjuacnq8efa7JM3qGNLWj1VEYT75PskGg2WCE2fIAwrQwKaEBKbLVDiHZN4KxiaNtp--PdbbolEu4-d1Vtr2cH_U1x0ANpqAkgtzUt6Ioq8OurI6n_T_mA-TXRJw</recordid><startdate>20220805</startdate><enddate>20220805</enddate><creator>ZHONG ZHICHAO</creator><creator>HE YUNNAN</creator><creator>WANG YUE</creator><creator>ZHOU XICHENG</creator><creator>LONG BENFU</creator><creator>CHAI ZHAOYUAN</creator><creator>LIN GAOAN</creator><creator>CAO YOUDONG</creator><scope>EVB</scope></search><sort><creationdate>20220805</creationdate><title>Preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution</title><author>ZHONG ZHICHAO ; HE YUNNAN ; WANG YUE ; ZHOU XICHENG ; LONG BENFU ; CHAI ZHAOYUAN ; LIN GAOAN ; CAO YOUDONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN114850486A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>CASTING</topic><topic>MAKING METALLIC POWDER</topic><topic>MANUFACTURE OF ARTICLES FROM METALLIC POWDER</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>TRANSPORTING</topic><topic>WORKING METALLIC POWDER</topic><toplevel>online_resources</toplevel><creatorcontrib>ZHONG ZHICHAO</creatorcontrib><creatorcontrib>HE YUNNAN</creatorcontrib><creatorcontrib>WANG YUE</creatorcontrib><creatorcontrib>ZHOU XICHENG</creatorcontrib><creatorcontrib>LONG BENFU</creatorcontrib><creatorcontrib>CHAI ZHAOYUAN</creatorcontrib><creatorcontrib>LIN GAOAN</creatorcontrib><creatorcontrib>CAO YOUDONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZHONG ZHICHAO</au><au>HE YUNNAN</au><au>WANG YUE</au><au>ZHOU XICHENG</au><au>LONG BENFU</au><au>CHAI ZHAOYUAN</au><au>LIN GAOAN</au><au>CAO YOUDONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution</title><date>2022-08-05</date><risdate>2022</risdate><abstract>The invention discloses a preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution, and the preparation method specifically comprises the following steps: S1, reducing tungsten trioxide in a hydrogen reduction furnace to obtain low-oxygen-content tungsten oxide WOX, x being 2-3; s2, the low-oxygen-content tungsten oxide obtained in the step S1 is sieved, and water remaining in tungsten oxide powder is removed; s3, reducing the low-oxygen-content tungsten oxide sieved in the step S2 into tungsten powder in a hydrogen reduction furnace; and S4, the tungsten powder obtained in the step S3 is sieved and blended. According to the preparation method of the low-oxygen-content submicron tungsten powder with the concentrated particle size distribution, the produced submicron tungsten powder is high in sphericity degree, uniform in morphology, perfect in crystallization, concentrated in particle size distribution and low in oxygen content.
本发明公开了一种粒度分布集中的低氧含量亚微细钨粉的</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING WORKING METALLIC POWDER |
| title | Preparation method of low-oxygen-content submicron tungsten powder with concentrated particle size distribution |
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