GB1101865A - Improvements in or relating to the manufacture of porous metal articles - Google Patents
Improvements in or relating to the manufacture of porous metal articlesInfo
- Publication number
- GB1101865A GB1101865A GB6792/65A GB679265A GB1101865A GB 1101865 A GB1101865 A GB 1101865A GB 6792/65 A GB6792/65 A GB 6792/65A GB 679265 A GB679265 A GB 679265A GB 1101865 A GB1101865 A GB 1101865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sintering
- mould
- alloy
- gas
- volume
- 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
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
- C22C1/0408—Light metal alloys
- C22C1/0416—Aluminium-based alloys
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- 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
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
A porous sintered Al alloy body containing at least 57.6% weight Al is made from particles of the alloy free from an oxide film thicker than 700 A by liquid phase sintering the particles in a mould under conditions to form 15-70% weight of a liquid phase. The Al alloy is formed by atomizing a melt in a dry non oxidizing atmosphere e.g. natural gas, argon or air containing < 0.3% volume H2O or a vacuum, or by machining the solidified alloy. The powder is preferably stored under dry conditions e.g. in N2, He or A. The sintering mould is made of a material which does not give off an oxidizing gas during sintering e.g. glass; steel coated with ceramic or porcelain enamel; ceramic; pyrolytic graphite. The sintering atmosphere contains < 0.3% volume H2O and is preferably natural gas, He, A, H2, N2, CH4, C2H5 or mixtures of these or a vacuum. Sintering may be effected in a sealed mould flushed with the required gas or a positive gas pressure is maintained in the mould. If an oxidizing gas is present during sintering the mould size is selected so that there is < 40% volume of free headspace above the charge. Alternatively a getter such as Mg may be used during the sintering. Prior to placing in the sintering mould the powder may be compacted to a density of at least 2.16g./cc. at a temperature below 260 DEG C. The Al alloys given contain any of the following: Cu, Mg, Si, Be, B, Fe, Mn, Zr, Li.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US345847A US3359095A (en) | 1964-02-19 | 1964-02-19 | Sintering of loose particulate aluminum metal |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1101865A true GB1101865A (en) | 1968-01-31 |
Family
ID=23356730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6792/65A Expired GB1101865A (en) | 1964-02-19 | 1965-02-17 | Improvements in or relating to the manufacture of porous metal articles |
Country Status (3)
Country | Link |
---|---|
US (1) | US3359095A (en) |
DE (1) | DE1483688B2 (en) |
GB (1) | GB1101865A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416520A1 (en) * | 1978-02-02 | 1979-08-31 | Nippon Dia Clevite Co | Porous sintered aluminium (alloy) body - produced by liq. phase sintering of different aluminium alloy powders |
EP0388026A1 (en) * | 1989-03-14 | 1990-09-19 | Corning Incorporated | Aluminide structures |
WO1999029281A2 (en) * | 1997-12-04 | 1999-06-17 | BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. | Method for producing dental castings |
GB2451761A (en) * | 2007-08-08 | 2009-02-11 | Iain Bridge | Porous body |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0449895A1 (en) * | 1988-12-14 | 1991-10-09 | KWW Gesellschaft für Thermotechnik mbH | Process for manufacturing mechanically stable, porous, permeable elements from aluminium powder or granules |
EP0436952B1 (en) * | 1989-12-29 | 1997-04-02 | Showa Denko Kabushiki Kaisha | Aluminium-alloy powder, sintered aluminium-alloy, and method for producing the sintered aluminum-alloy |
JPH04293705A (en) * | 1991-03-20 | 1992-10-19 | Akebono Brake Res & Dev Center Ltd | Production of disk rotor of aluminum-based composite material |
US7517492B2 (en) * | 2003-12-01 | 2009-04-14 | The Ex One Company | Processes for sintering aluminum and aluminum alloy components |
DE102009019041B4 (en) * | 2009-04-27 | 2011-07-07 | Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH, 21502 | Process for the production of magnesium or magnesium alloy components by sintering |
CN107779639A (en) * | 2016-08-31 | 2018-03-09 | 国研高能(北京)稳态传热传质技术研究院有限公司 | A kind of aluminum material of porous sponge structure and preparation method thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2287251A (en) * | 1939-07-07 | 1942-06-23 | Jones William David | Manufacture of nonporous metal articles |
GB544833A (en) * | 1940-03-07 | 1942-04-29 | Gen Motors Corp | Improved method of making porous metal articles |
US2293400A (en) * | 1941-01-21 | 1942-08-18 | Isthmian Metals Inc | Method for producing metal bodies |
US2391752A (en) * | 1942-05-30 | 1945-12-25 | Stern Max | Method for treating aluminum or aluminum alloy scrap |
GB626764A (en) * | 1946-04-16 | 1949-07-21 | American Electro Metal Corp | Improvements in method of producing shaped bodies from powdery aluminium |
US2796660A (en) * | 1946-07-17 | 1957-06-25 | Aluminium Ind Ag | Method for the production of light metal articles |
US2809891A (en) * | 1954-10-12 | 1957-10-15 | Aluminum Co Of America | Method of making articles from aluminous metal powder |
US3100933A (en) * | 1956-10-15 | 1963-08-20 | Gen Motors Corp | Method of cold welding aluminum |
US3232754A (en) * | 1961-11-07 | 1966-02-01 | Alloys Res & Mfg Corp | Porous metallic bodies and fabrication methods therefor |
-
1964
- 1964-02-19 US US345847A patent/US3359095A/en not_active Expired - Lifetime
-
1965
- 1965-02-17 GB GB6792/65A patent/GB1101865A/en not_active Expired
- 1965-02-19 DE DE19651483688 patent/DE1483688B2/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416520A1 (en) * | 1978-02-02 | 1979-08-31 | Nippon Dia Clevite Co | Porous sintered aluminium (alloy) body - produced by liq. phase sintering of different aluminium alloy powders |
EP0388026A1 (en) * | 1989-03-14 | 1990-09-19 | Corning Incorporated | Aluminide structures |
WO1999029281A2 (en) * | 1997-12-04 | 1999-06-17 | BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. | Method for producing dental castings |
WO1999029281A3 (en) * | 1997-12-04 | 1999-09-10 | Herbst Bremer Goldschlaegerei | Method for producing dental castings |
GB2451761A (en) * | 2007-08-08 | 2009-02-11 | Iain Bridge | Porous body |
Also Published As
Publication number | Publication date |
---|---|
DE1483688B2 (en) | 1970-04-30 |
US3359095A (en) | 1967-12-19 |
DE1483688A1 (en) | 1970-04-30 |
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