ES2075712T3 - Un proceso de reaccion carbo-termica para producir polvos de wc-co en nano-fase. - Google Patents
Un proceso de reaccion carbo-termica para producir polvos de wc-co en nano-fase.Info
- Publication number
- ES2075712T3 ES2075712T3 ES92917865T ES92917865T ES2075712T3 ES 2075712 T3 ES2075712 T3 ES 2075712T3 ES 92917865 T ES92917865 T ES 92917865T ES 92917865 T ES92917865 T ES 92917865T ES 2075712 T3 ES2075712 T3 ES 2075712T3
- Authority
- ES
- Spain
- Prior art keywords
- reaction process
- powders
- carbon
- powder particles
- processing
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
- C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
- C22C1/056—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds using gas
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
SE DESCRIBE UN NUEVO PROCESO DE REACCION CARBOTERMICA PARA EL PROCESAMIENTO TERMOQUIMICO DE POLVOS DE WC-CO DE NANOFASE. EL PROCESO PERMITE TIEMPOS MAS CORTOS DE REACCION, TEMPERATURAS REDUCIDAS Y MICROESTRUCTURAS MAS FINAS, SI SE COMPARAN CON METODOS CONVENCIONALES DE PROCESAMIENTO. EL PROCESO CUENTA CON NUESTRA EXPERIENCIA CON PROCESAMIENTO [1] DE CONVERSION POR ASPERSION, PERO IMPLICA 1) REACCION DE INFILTRACION DE VAPOR QUIMICO DEL CARBONO INFILTRANTE EN SUSTRATO DE PARTICULAS, PARA FORMAR WC-CO; Y 2) LA EXTRACCION DE TODO EXCESO (NO REACCIONADO) DE CARBONO MEDIANTE GASIFICACION CONTROLADA. UNA CARACTERISTICA DEL PROCESO DE REACCION CARBOTERMICO CONSISTE EN SU ADAPTABILIDAD A LA TECNOLOGIA DE PROCESAMIENTO DE WC-CO CONVENCIONAL, ASI COMO A LA TECNOLOGIA DE PROCESAMIENTO DE CONVERSION POR ASPERSION. LAS PARTICULAS DE POLVO RESULTANTES ESTAN FORMADAS POR UNA RED DE GRANOS FINOS (MENOS DE 100 NM) DE WC Y CO, CON POROSIDAD FINA INTERCONECTADA. LAS PARTICULAS DE POLVO ADECUADAS PARA POSTERIOR MANIPULACION Y CONSOLIDACION SE PRODUCEN FACILMENTE CON DIAMETROS MAYORES DE 10 MICRONES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74132791A | 1991-08-07 | 1991-08-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2075712T3 true ES2075712T3 (es) | 1995-10-01 |
Family
ID=24980273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92917865T Expired - Lifetime ES2075712T3 (es) | 1991-08-07 | 1992-08-06 | Un proceso de reaccion carbo-termica para producir polvos de wc-co en nano-fase. |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0598040B1 (es) |
JP (1) | JPH07500804A (es) |
KR (1) | KR100196244B1 (es) |
AT (1) | ATE123478T1 (es) |
AU (1) | AU2430992A (es) |
CA (1) | CA2114639C (es) |
DE (1) | DE69202862T2 (es) |
ES (1) | ES2075712T3 (es) |
WO (1) | WO1993002962A1 (es) |
ZA (1) | ZA925955B (es) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE504730C2 (sv) * | 1994-11-16 | 1997-04-14 | Sandvik Ab | Metod att tillverka pulver av ett komplext ammoniumsalt av W och Co och/eller Ni |
AT403775B (de) * | 1995-10-31 | 1998-05-25 | Plansee Ag | Verfahren zur reduktion von metallverbindungen |
AT404002B (de) * | 1996-07-15 | 1998-07-27 | Thule Ind Ab | Zusammenklappbarer exzenterspannhebel |
AT404912B (de) * | 1996-11-04 | 1999-03-25 | Plansee Ag | Verfahren zur herstellung von pulver-pressansätzen für feinkörniges hartmetall |
DE19852459A1 (de) * | 1998-11-13 | 2000-05-18 | Starck H C Gmbh Co Kg | Verfahren zur Herstellung von Wolframkarbiden durch Gasphasenkarburierung |
AT3064U1 (de) | 1998-12-28 | 1999-09-27 | Plansee Tizit Gmbh | Gaskarburierungsverfahren zur herstellung von reinem wc-pulver |
CN1289392C (zh) | 2001-07-30 | 2006-12-13 | 三菱麻铁里亚尔株式会社 | 微粒碳化钨粉末的制造方法及粉末 |
KR100586852B1 (ko) * | 2002-11-12 | 2006-06-07 | 학교법인 영남학원 | 산화텡스텐의 환원-탄화공정의 효율개선방법 |
JP4651565B2 (ja) * | 2006-03-28 | 2011-03-16 | 京セラ株式会社 | 超硬合金粉末の製法 |
JP5522713B2 (ja) * | 2008-08-25 | 2014-06-18 | 公立大学法人兵庫県立大学 | 遷移金属固溶タングステン合金粉末及びその製造方法 |
JP5522712B2 (ja) * | 2008-08-25 | 2014-06-18 | 公立大学法人兵庫県立大学 | 遷移金属内包タングステン炭化物、タングステン炭化物分散超硬合金及びそれらの製造方法 |
CN102350506A (zh) * | 2011-10-31 | 2012-02-15 | 西南石油大学 | 纳米结构WC-Co复合粉末制备方法 |
GB201209453D0 (en) * | 2012-05-29 | 2012-07-11 | Element Six Gmbh | Constructions comprising polycrystalline material,tools comprising same and method for making same |
CN103056382B (zh) * | 2013-01-04 | 2015-11-11 | 湖南顶立科技有限公司 | 一种纳米结构碳化钨/钴复合粉末的制备方法 |
KR101704470B1 (ko) * | 2015-09-22 | 2017-02-10 | 한국생산기술연구원 | 탄화텅스텐-탄소 복합입자, 탄화텅스텐-탄소 복합입자와 중공형 탄화텅스텐의 제조방법 |
JP2018035020A (ja) * | 2016-08-30 | 2018-03-08 | 住友電気工業株式会社 | 水溶液組成物およびその製造方法、酸化物粉末およびその製造方法、炭化物粉末およびその製造方法、ならびに、超硬合金およびその製造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2176802A (en) * | 1937-05-05 | 1939-10-17 | Philips Nv | Method of making hard metal alloys |
FR833555A (fr) * | 1937-06-18 | 1938-10-25 | Lorraine Carbone | Nouveau procédé de fabrication des alliages durs frittés |
US3077385A (en) * | 1959-01-06 | 1963-02-12 | Gen Electric | Process for producing carbides |
US3932594A (en) * | 1973-12-28 | 1976-01-13 | Union Carbide Corporation | Process for the preparation of fine grain metal carbide powders |
US4579713A (en) * | 1985-04-25 | 1986-04-01 | Ultra-Temp Corporation | Method for carbon control of carbide preforms |
US4851041A (en) * | 1987-05-22 | 1989-07-25 | Exxon Research And Engineering Company | Multiphase composite particle |
DE3830111A1 (de) * | 1988-09-05 | 1990-03-15 | Dornier Gmbh | Legierungspulver |
CA2045125A1 (en) * | 1989-11-09 | 1991-05-10 | Larry E. Mccandlish | Spray conversion process for the production of nanophase composite powders |
-
1992
- 1992-08-06 WO PCT/US1992/006466 patent/WO1993002962A1/en active IP Right Grant
- 1992-08-06 ES ES92917865T patent/ES2075712T3/es not_active Expired - Lifetime
- 1992-08-06 AU AU24309/92A patent/AU2430992A/en not_active Abandoned
- 1992-08-06 CA CA002114639A patent/CA2114639C/en not_active Expired - Fee Related
- 1992-08-06 JP JP5503802A patent/JPH07500804A/ja active Pending
- 1992-08-06 DE DE69202862T patent/DE69202862T2/de not_active Expired - Lifetime
- 1992-08-06 KR KR1019940700390A patent/KR100196244B1/ko not_active IP Right Cessation
- 1992-08-06 AT AT92917865T patent/ATE123478T1/de not_active IP Right Cessation
- 1992-08-06 EP EP92917865A patent/EP0598040B1/en not_active Expired - Lifetime
- 1992-08-07 ZA ZA925955A patent/ZA925955B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
ZA925955B (en) | 1993-05-03 |
EP0598040B1 (en) | 1995-06-07 |
DE69202862T2 (de) | 1996-02-15 |
KR100196244B1 (ko) | 1999-06-15 |
DE69202862D1 (de) | 1995-07-13 |
CA2114639A1 (en) | 1993-02-18 |
JPH07500804A (ja) | 1995-01-26 |
EP0598040A1 (en) | 1994-05-25 |
AU2430992A (en) | 1993-03-02 |
WO1993002962A1 (en) | 1993-02-18 |
CA2114639C (en) | 2003-02-25 |
ATE123478T1 (de) | 1995-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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