CN101983804B - 近球形钨粉的制备方法 - Google Patents
近球形钨粉的制备方法 Download PDFInfo
- Publication number
- CN101983804B CN101983804B CN2010105714917A CN201010571491A CN101983804B CN 101983804 B CN101983804 B CN 101983804B CN 2010105714917 A CN2010105714917 A CN 2010105714917A CN 201010571491 A CN201010571491 A CN 201010571491A CN 101983804 B CN101983804 B CN 101983804B
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- CN
- China
- Prior art keywords
- powder
- tungsten powder
- tungsten
- oxidation
- subsphaeroidal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 28
- 230000003647 oxidation Effects 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 239000012670 alkaline solution Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 48
- 239000000243 solution Substances 0.000 claims description 21
- 239000008367 deionised water Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 230000008021 deposition Effects 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000006228 supernatant Substances 0.000 claims description 7
- 230000004584 weight gain Effects 0.000 claims description 7
- 235000019786 weight gain Nutrition 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000012798 spherical particle Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 20
- 229910052721 tungsten Inorganic materials 0.000 description 9
- 239000010937 tungsten Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000500881 Lepisma Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 150000003657 tungsten Chemical class 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010105714917A CN101983804B (zh) | 2010-12-03 | 2010-12-03 | 近球形钨粉的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010105714917A CN101983804B (zh) | 2010-12-03 | 2010-12-03 | 近球形钨粉的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101983804A CN101983804A (zh) | 2011-03-09 |
CN101983804B true CN101983804B (zh) | 2012-07-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2010105714917A Active CN101983804B (zh) | 2010-12-03 | 2010-12-03 | 近球形钨粉的制备方法 |
Country Status (1)
Country | Link |
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CN (1) | CN101983804B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2933040A4 (en) * | 2012-12-17 | 2016-08-17 | Showa Denko Kk | PROCESS FOR PRODUCING TUNGSTEN FINE POWDER |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5222437B1 (ja) * | 2011-11-15 | 2013-06-26 | 昭和電工株式会社 | タングステン細粉の製造方法 |
CN102935515A (zh) * | 2012-11-21 | 2013-02-20 | 北京科技大学 | 一种球形钨粉的制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1608983A (zh) * | 2004-09-16 | 2005-04-27 | 北京科技大学 | 一种纳米级钨粉及碳化钨粉的制备方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4948541A (zh) * | 1972-09-14 | 1974-05-10 |
-
2010
- 2010-12-03 CN CN2010105714917A patent/CN101983804B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1608983A (zh) * | 2004-09-16 | 2005-04-27 | 北京科技大学 | 一种纳米级钨粉及碳化钨粉的制备方法 |
Non-Patent Citations (3)
Title |
---|
刘正春等.钨粉的等离子体球化.《稀有金属与硬质合金》.1999,全文. * |
谢中华等.球形钨粉的制备工艺研究.《中国钨业》.2009,全文. * |
郭双全等.低成本等离子体球化技术制备热喷涂用球形钨粉的工艺研究.《粉末冶金工业》.2010,全文. * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2933040A4 (en) * | 2012-12-17 | 2016-08-17 | Showa Denko Kk | PROCESS FOR PRODUCING TUNGSTEN FINE POWDER |
US9789538B2 (en) | 2012-12-17 | 2017-10-17 | Show A Denko K.K. | Method for producing ultrafine tungsten powder |
Also Published As
Publication number | Publication date |
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CN101983804A (zh) | 2011-03-09 |
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TR01 | Transfer of patent right |
Effective date of registration: 20161013 Address after: Tao Zhu Street West two loop 311800 Zhejiang city in Shaoxing Province, Zhuji City, No. 8 Patentee after: Zhejiang Zhixin new material Limited by Share Ltd. Address before: 410083 Department of science and technology, Central South University, Changsha, Yuelu District, Hunan Patentee before: Central South University |
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PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Preparation of near spherical tungsten powder Effective date of registration: 20220615 Granted publication date: 20120704 Pledgee: Zhuji Branch of Industrial and Commercial Bank of China Ltd. Pledgor: Zhejiang Zhixin new material Limited by Share Ltd. Registration number: Y2022980007687 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20120704 Pledgee: Zhuji Branch of Industrial and Commercial Bank of China Ltd. Pledgor: Zhejiang Zhixin new material Limited by Share Ltd. Registration number: Y2022980007687 |