WO2014131150A1 - 一种电容器级钽铌合金丝材用粉料及其制备方法 - Google Patents
一种电容器级钽铌合金丝材用粉料及其制备方法 Download PDFInfo
- Publication number
- WO2014131150A1 WO2014131150A1 PCT/CN2013/071875 CN2013071875W WO2014131150A1 WO 2014131150 A1 WO2014131150 A1 WO 2014131150A1 CN 2013071875 W CN2013071875 W CN 2013071875W WO 2014131150 A1 WO2014131150 A1 WO 2014131150A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- powder
- tantalum
- tantalum powder
- mixing
- mesh
- Prior art date
Links
- 239000000843 powder Substances 0.000 title claims abstract description 86
- 239000003990 capacitor Substances 0.000 title claims abstract description 25
- 229910001257 Nb alloy Inorganic materials 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 title claims abstract description 20
- RHDUVDHGVHBHCL-UHFFFAOYSA-N niobium tantalum Chemical compound [Nb].[Ta] RHDUVDHGVHBHCL-UHFFFAOYSA-N 0.000 title abstract 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000002156 mixing Methods 0.000 claims abstract description 32
- 239000000203 mixture Substances 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 13
- 229910001152 Bi alloy Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 5
- 229910001362 Ta alloys Inorganic materials 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C45/00—Amorphous alloys
- C22C45/10—Amorphous alloys with molybdenum, tungsten, niobium, tantalum, titanium, or zirconium or Hf as the major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/12—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of wires
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/008—Terminals
- H01G9/012—Terminals specially adapted for solid capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/041—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by mechanical alloying, e.g. blending, milling
Definitions
- the present invention relates to the field of capacitors, and more particularly to a powder for capacitor grade bismuth alloy wire and a method of preparing the same. Background technique
- Capacitor grade niobium alloy wire is used in capacitors and is commonly used to make capacitor anode leads.
- the raw materials used in the manufacture of capacitor grade niobium alloy wires are tantalum powder and niobium powder.
- a certain proportion of tantalum powder and tantalum powder are finally produced into a capacitor grade tantalum alloy wire by mixing, pressing, vacuum sintering or smelting, rolling or forging, intermediate annealing, drawing, and finishing annealing.
- the powder for capacitor grade niobium alloy wire is a raw material for the manufacture of container grade niobium alloy wire, and the uniformity of the powder directly affects the quality of the final product.
- the conventional capacitor-grade crepe powder is a single powder, and because it does not contain other metals, the uniformity of the mixture is easy to achieve.
- the particle size of the tantalum powder in the powder grade of the capacitor grade niobium alloy wire is small, and the number of particles per unit volume is relatively larger than that of the niobium powder. A large amount of small particle powders are gathered together and are not easily dispersed during the mixing process, so there is unevenness in microscopic view. Therefore, in order to prepare a capacitor grade niobium alloy wire, it is necessary to provide a well mixed niobium powder mixture. Summary of the invention
- An object of the present invention is to provide a powder for a capacitor-grade niobium alloy wire and a method for stably producing the same, by which a powder for niobium alloy wire can be produced on an industrial scale, the niobium alloy wire
- the powder for the material has a very high uniformity.
- the ratio of the addition of tantalum powder to tantalum powder to a certain extent during the initial mixing process for example, the weight ratio of tantalum powder to the first part of the tantalum powder is about 2:1
- the speed guarantees that the powder and the powder are thoroughly mixed to further avoid the phenomenon of powder agglomeration caused by the excessively fast mixing speed.
- the powder is particularly suitable for the manufacture of capacitor grade niobium alloy wires.
- the present invention provides a powder for a capacitor-grade niobium alloy wire, the powder comprising a tantalum powder and a tantalum powder, wherein the weight ratio of the tantalum powder to the tantalum powder is 1:2 to 3:2, The purity of the tantalum powder and the tantalum powder are both greater than 99.9% by weight, the particle size of the tantalum powder is -80 mesh to -150 mesh, and the particle size of the tantalum powder is -150 mesh to -200 mesh, and ⁇ The bulk of the powder is 3. 0-4. 3 g / cm 3 .
- the present invention provides a method of preparing a powder for a capacitor grade niobium alloy wire, the method comprising the steps of:
- the particle size of the powder is -150 mesh to -200 mesh, and wherein the weight ratio of the tantalum powder to the tantalum powder is 1: 2 to 3: 2;
- the weight of the first portion of the tantalum powder is from 45% to 55%, and preferably 50% by weight of the tantalum powder.
- the technical features of the method of the invention are: (1) Proportion control of adding silver powder and glutinous powder for the first time: The weight ratio of the first added silver powder and coarse powder should be controlled at about 1: 2, and the remaining mash powder is added to the mixer to continue mixing after the second mixing.
- “mesh” is used to indicate the particle size of the tantalum powder or tantalum powder (according to the American ASTM standard).
- the "-" sign before the mesh means “passing” the mesh of the mesh.
- "-150 mesh” means that the particles of the powder pass through a 150 mesh screen.
- Example 1 The invention is illustrated by the following specific examples. However, it should be understood that the invention is not limited to the specific embodiments. Example 1
- the production method according to the present invention was used, and the comparative example was a conventional method.
- the method for producing a powder for a niobium alloy wire material according to the present invention can obtain a powder having excellent uniformity; the crucible alloy wire can be further produced from the powder by a subsequent processing, and the crucible of the present invention can be further fully embodied.
- the advantage of the powder for bismuth alloy wire In the processing of niobium alloy wire, the yarn breakage usually occurs during the drawing process of niobium alloy wire. It is generally believed that the frequency of such breakage is closely related to the uniformity of the powder.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2013/071875 WO2014131150A1 (zh) | 2013-02-26 | 2013-02-26 | 一种电容器级钽铌合金丝材用粉料及其制备方法 |
MX2015000570A MX2015000570A (es) | 2013-02-26 | 2013-02-26 | Material en polvo usado para material de alambre de aleacion de tantalo-niobio con grado de condesador y metodo de preparacion del mismo. |
JP2015558324A JP2016516124A (ja) | 2013-02-26 | 2013-02-26 | コンデンサ・グレードのタンタル・ニオブ合金ワイヤ用の粉末材料及びその調製方法 |
CN201380032441.3A CN104379792B (zh) | 2013-02-26 | 2013-02-26 | 一种电容器级钽铌合金丝材用粉料及其制备方法 |
IL236833A IL236833A0 (en) | 2013-02-26 | 2015-01-21 | Powder material for a tantalum-niobium alloy wire to receive a grade and a process for its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2013/071875 WO2014131150A1 (zh) | 2013-02-26 | 2013-02-26 | 一种电容器级钽铌合金丝材用粉料及其制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014131150A1 true WO2014131150A1 (zh) | 2014-09-04 |
Family
ID=51427455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/071875 WO2014131150A1 (zh) | 2013-02-26 | 2013-02-26 | 一种电容器级钽铌合金丝材用粉料及其制备方法 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2016516124A (zh) |
CN (1) | CN104379792B (zh) |
IL (1) | IL236833A0 (zh) |
MX (1) | MX2015000570A (zh) |
WO (1) | WO2014131150A1 (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4017302A (en) * | 1976-02-04 | 1977-04-12 | Fansteel Inc. | Tantalum metal powder |
CN1410209A (zh) * | 2001-09-29 | 2003-04-16 | 宁夏东方钽业股份有限公司 | 高比表面积钽粉和/或铌粉的制备方法 |
CN101184568A (zh) * | 2005-05-31 | 2008-05-21 | 卡伯特超金属株式会社 | 金属粉末及其制造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6171363B1 (en) * | 1998-05-06 | 2001-01-09 | H. C. Starck, Inc. | Method for producing tantallum/niobium metal powders by the reduction of their oxides with gaseous magnesium |
EP2055412B1 (en) * | 1998-05-06 | 2012-08-22 | H.C. Starck GmbH | Niobium or tantalum based powder produced by the reduction of the oxides with a gaseous metal |
RU2230629C2 (ru) * | 1998-05-06 | 2004-06-20 | Х.Ц. Штарк, Инк. | Металлические порошки, полученные восстановлением оксидов газообразным магнием |
CN101859649B (zh) * | 2010-04-16 | 2012-02-08 | 株洲宏达电子有限公司 | 一种固体电解质铌钽复合电容器的制备方法及复合电容器 |
-
2013
- 2013-02-26 MX MX2015000570A patent/MX2015000570A/es unknown
- 2013-02-26 JP JP2015558324A patent/JP2016516124A/ja active Pending
- 2013-02-26 WO PCT/CN2013/071875 patent/WO2014131150A1/zh active Application Filing
- 2013-02-26 CN CN201380032441.3A patent/CN104379792B/zh active Active
-
2015
- 2015-01-21 IL IL236833A patent/IL236833A0/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4017302A (en) * | 1976-02-04 | 1977-04-12 | Fansteel Inc. | Tantalum metal powder |
CN1410209A (zh) * | 2001-09-29 | 2003-04-16 | 宁夏东方钽业股份有限公司 | 高比表面积钽粉和/或铌粉的制备方法 |
CN101184568A (zh) * | 2005-05-31 | 2008-05-21 | 卡伯特超金属株式会社 | 金属粉末及其制造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN104379792A (zh) | 2015-02-25 |
JP2016516124A (ja) | 2016-06-02 |
CN104379792B (zh) | 2016-11-16 |
MX2015000570A (es) | 2015-04-10 |
IL236833A0 (en) | 2015-03-31 |
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