FR2427155A1 - Procede de preparation par metallurgie des poudres de pieces en molybdene ou en alliage de molybdene - Google Patents
Procede de preparation par metallurgie des poudres de pieces en molybdene ou en alliage de molybdeneInfo
- Publication number
- FR2427155A1 FR2427155A1 FR7816555A FR7816555A FR2427155A1 FR 2427155 A1 FR2427155 A1 FR 2427155A1 FR 7816555 A FR7816555 A FR 7816555A FR 7816555 A FR7816555 A FR 7816555A FR 2427155 A1 FR2427155 A1 FR 2427155A1
- Authority
- FR
- France
- Prior art keywords
- molybdenum
- molybdene
- sheath
- powder
- under
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
Abstract
L'invention a pour objet un procédé de préparation par métallurgie des poudres de pièces en molybdène ou en alliage de molybdène. Ce procédé consiste : a. A préparer une poudre de molybdène ou d'alliage de molybdène d'une granulométrie supérieure à 100 mu et ayant une teneur en O2 au plus égale à 100 ppm; b. A introduire sous vide ou sous atmosphère inerte ladite poudre dans une gaine en matériau présentant à une température inférieure à 1 250 degrés C, une ductilité au moins égale à celle du molybdène ou de l'alliage de molybdène, ledit matériau n'étant pas susceptible de réagir avec le molybdène ou l'alliage de molybdène à ladite température, à tasser sous vide ou sous atmophère inerte ladite poudre dans ladite gaine et à obturer sous vide ou sous atmosphère inerte ladite gaine; c. A soumettre l'ensemble gainé ainsi obtenu à une opération de filage ou de laminage à une température inférieure à 1 250 degrés C, et d. A éliminer ensuite ladite gaine pour obtenir une pièce en molybdène ou en alliage de molybdène. Application à la réalisation de tubes de molybdène.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7816555A FR2427155A1 (fr) | 1978-06-02 | 1978-06-02 | Procede de preparation par metallurgie des poudres de pieces en molybdene ou en alliage de molybdene |
JP6377779A JPS5511189A (en) | 1978-06-02 | 1979-05-23 | Metallurgical production of powder for use as molybdenum or molybdenum alloy parts |
EP19790400333 EP0006056B1 (fr) | 1978-06-02 | 1979-05-28 | Procédé de préparation, par métallurgie des poudres, de pièces en molybdène ou en alliage de molybdène |
DE7979400333T DE2960817D1 (en) | 1978-06-02 | 1979-05-28 | Process for producing articles of molybdenum or molybdenum alloys by powder metallurgy methods |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7816555A FR2427155A1 (fr) | 1978-06-02 | 1978-06-02 | Procede de preparation par metallurgie des poudres de pieces en molybdene ou en alliage de molybdene |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2427155A1 true FR2427155A1 (fr) | 1979-12-28 |
FR2427155B1 FR2427155B1 (fr) | 1980-10-31 |
Family
ID=9209008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7816555A Granted FR2427155A1 (fr) | 1978-06-02 | 1978-06-02 | Procede de preparation par metallurgie des poudres de pieces en molybdene ou en alliage de molybdene |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0006056B1 (fr) |
JP (1) | JPS5511189A (fr) |
DE (1) | DE2960817D1 (fr) |
FR (1) | FR2427155A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5263349A (en) * | 1992-09-22 | 1993-11-23 | E. I. Du Pont De Nemours And Company | Extrusion of seamless molybdenum rhenium alloy pipes |
AT8697U1 (de) | 2005-10-14 | 2006-11-15 | Plansee Se | Rohrtarget |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2883284A (en) * | 1956-07-30 | 1959-04-21 | Westinghouse Electric Corp | Molybdenum base alloys |
US3784656A (en) * | 1971-12-03 | 1974-01-08 | Whittaker Corp | Method of producing spherical powder by eccentric electrode rotation |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1087400A (en) * | 1964-01-03 | 1967-10-18 | Super Temp Corp | Method and apparatus for consolidation of powdered materials and articles of manufacture produced therefrom |
NL6510675A (fr) * | 1965-08-14 | 1967-02-15 | ||
US3892030A (en) * | 1974-04-29 | 1975-07-01 | Us Air Force | Method of fabricating a billet from metal preforms and metal powder |
-
1978
- 1978-06-02 FR FR7816555A patent/FR2427155A1/fr active Granted
-
1979
- 1979-05-23 JP JP6377779A patent/JPS5511189A/ja active Pending
- 1979-05-28 DE DE7979400333T patent/DE2960817D1/de not_active Expired
- 1979-05-28 EP EP19790400333 patent/EP0006056B1/fr not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2883284A (en) * | 1956-07-30 | 1959-04-21 | Westinghouse Electric Corp | Molybdenum base alloys |
US3784656A (en) * | 1971-12-03 | 1974-01-08 | Whittaker Corp | Method of producing spherical powder by eccentric electrode rotation |
Also Published As
Publication number | Publication date |
---|---|
EP0006056A1 (fr) | 1979-12-12 |
FR2427155B1 (fr) | 1980-10-31 |
EP0006056B1 (fr) | 1981-09-16 |
JPS5511189A (en) | 1980-01-25 |
DE2960817D1 (en) | 1981-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |