EP1272300B1 - Verfahren zur herstellung von metallischen hohlkörpern und hiernach hergestellte miniaturisierte hohlkörper - Google Patents
Verfahren zur herstellung von metallischen hohlkörpern und hiernach hergestellte miniaturisierte hohlkörper Download PDFInfo
- Publication number
- EP1272300B1 EP1272300B1 EP01915064A EP01915064A EP1272300B1 EP 1272300 B1 EP1272300 B1 EP 1272300B1 EP 01915064 A EP01915064 A EP 01915064A EP 01915064 A EP01915064 A EP 01915064A EP 1272300 B1 EP1272300 B1 EP 1272300B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal
- hollow bodies
- bodies
- metallic
- process according
- 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
- 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
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
- B22F3/1112—Making porous workpieces or articles with particular physical characteristics comprising hollow spheres or hollow fibres
-
- 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
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
- B22F1/0655—Hollow particles
-
- 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
- B22F3/1143—Making porous workpieces or articles involving an oxidation, reduction or reaction step
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12181—Composite powder [e.g., coated, etc.]
Definitions
- US 3,674,461 discloses hollow spherical particles Aluminum, magnesium, boron and beryllium, which are free of holes and seams are and their diameter smaller than about 4.5 mm, with the wall thickness less is about 0.2 mm.
- the respective material is in the form of a powder coating built on a core. It will indicated that the cores in a rotating container be filled in which is a dosed amount the powdery coating material is located.
- the core consists for example of naphthalene, anthracene, Camphor or polyaldehyde. Below is the core sublimated over a longer period of time in vacuo and gaseous through the coating away.
- the remaining hollow Balls e.g. made of aluminum, at temperatures between 700 and 800 ° C oxidized. As a result arise Shells made of ceramics of the starting materials used in each case.
- the minimum size in practice as a substrate used Styroporkugeln is at about 0.8 mm limited. Smaller Styrofoam balls are not produced. For other than spherical support materials the conditions are accordingly. By the coating of styrofoam balls increases Diameter still further. Should metallic hollow spheres smaller than 0.8 mm would have to be made not foamed plastic balls are used. However, this increases the amount of pyrolyzed Plastic so strong that the expulsion of the ball core material on economic and environmentally friendly way becomes impossible.
- the finished molding composites are more Advantages.
- the surface roughness of structures or components is significantly reduced. Thereby arise surfaces that are usually considered smooth Surfaces can be designated.
- the smaller ones outer diameter of the hollow balls is the Structure of a hollow sphere composite overall essential homogeneous and mechanical properties will be improved.
- the moldings composites can be machined and easily machined without cutting. For example, can also nails or screws are introduced.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- Powder Metallurgy (AREA)
- Forging (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
Claims (13)
- Verfahren zur Herstellung von metallischen Hohlkörpern durch Aufbringen einer Suspension eines Pulvers einer bei unter 1500 °C reduzierbaren Metallverbindung auf etwa kugelförmige Trägerelemente aus Styropor, Erhitzen der so beschichteten Trägerelemente, Pyrolisieren der Trägerelemente und Reduzieren der Metallverbindung zu Metall in einer reduzierenden Atmosphäre,
dadurch gekennzeichnet, dass Trägerelemente mit einem mittleren Durchmesser kleiner als 1 mm eingesetzt und Metall-Hohlkörper mit einem mittleren Durchmesser von etwa 0,1-0,3 mm erhalten werden. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass Metallverbindungen ausgewählt werden, die bei einer Temperatur unter 1.200 °C reduzierbar sind. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass als Metallverbindung eine solche auf der Basis der Metalle Fe, Ni, Co, Sn, Mo, Cr, Cu, Ag, Pd oder W ausgewählt wird. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass mindestens zwei eine Metalllegierung bildende Metallverbindungen ausgewählt werden. - Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Metallverbindung(en) mindestens teilweise in kolloidaler oder gelöster Form eingesetzt wird (werden). - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die Metallverbindung(en) mehrschichtig auf den Trägerkörper aufgebracht wird (werden). - Verfahren nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die Wärmebehandlung der Grünlinge in einer Form für die Ausbildung von Bauteilen oder Halbzeug-Bauteilen erfolgt. - Verfahren nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass als Trägerkörper solche ausgewählt werden, die mittels Extruder hergestellt wurden, wobei die ursprünglichen Extruderstränge nachfolgend zerstückelt werden. - Metallische miniaturisierte Hohlkörper hergestellt nach einem Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet dass die aus einem Schwermetall gebildeten Metall-Hohlkörper einen äußeren Durchmesser zwischen 0,05 bis 0,5 mm und ein Durchmesser-Wanddickenverhältnis von 0,5 bis 3% aufweisen.
- Metallische Hohlkörper nach Anspruch 9,
dadurch gekennzeichnet, dass die metallischen Hohlkörper aus Fe, Ni, Co, Sn, Mo, Cr, Cu, Ag, Pd oder W bestehen. - Metallische Hohlkörper nach Anspruch 9 oder 10,
dadurch gekennzeichnet, dass die metallischen Hohlkörper aus einer Legierung bestehen. - Metallische Hohlkörper nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, dass die Wandung der metallischen Hohlkörper mehrlagig ausgebildet ist.
- Metallische Hohlkörper nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass die metallischen Hohlkörper zu Bauteilen oder Halbzeug-Bauteilen versintert sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10018501A DE10018501C1 (de) | 2000-04-14 | 2000-04-14 | Metallische miniaturisierte hohle Formkörper und Verfahren zur Herstellung derartiger Formkörper |
DE10018501 | 2000-04-14 | ||
PCT/DE2001/000761 WO2001078923A1 (de) | 2000-04-14 | 2001-02-22 | Metallische miniaturisierte hohle formkörper und verfahren zur herstellung derartiger formkörper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1272300A1 EP1272300A1 (de) | 2003-01-08 |
EP1272300B1 true EP1272300B1 (de) | 2005-05-18 |
Family
ID=7638727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01915064A Expired - Lifetime EP1272300B1 (de) | 2000-04-14 | 2001-02-22 | Verfahren zur herstellung von metallischen hohlkörpern und hiernach hergestellte miniaturisierte hohlkörper |
Country Status (7)
Country | Link |
---|---|
US (1) | US20030077473A1 (de) |
EP (1) | EP1272300B1 (de) |
JP (1) | JP2003531287A (de) |
AT (1) | ATE295767T1 (de) |
AU (1) | AU4228601A (de) |
DE (2) | DE10018501C1 (de) |
WO (1) | WO2001078923A1 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4616220B2 (ja) * | 2006-07-18 | 2011-01-19 | Jfeテクノリサーチ株式会社 | 中空金属体の製造方法 |
JP4641010B2 (ja) * | 2006-07-25 | 2011-03-02 | Jfeテクノリサーチ株式会社 | 中空金属体 |
DE102007005211B4 (de) | 2007-01-30 | 2010-03-11 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Verfahren zur Herstellung eines Verbundwerkstoffes |
DE102008006690B4 (de) * | 2008-01-25 | 2010-01-07 | Glatt Systemtechnik Gmbh | Gesinterter Hohlkörper |
US20100021721A1 (en) * | 2008-07-22 | 2010-01-28 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Composite material and method for the production of a composite material |
JP2011219830A (ja) * | 2010-04-12 | 2011-11-04 | Jfe Mineral Co Ltd | ニッケル微粒子、ニッケル微粒子混合物、および、導電性ペースト |
US9719176B2 (en) | 2013-09-20 | 2017-08-01 | Hrl Laboratories, Llc | Thermal barrier materials and coatings with low heat capacity and low thermal conductivity |
US10647618B2 (en) | 2014-09-19 | 2020-05-12 | Hrl Laboratories, Llc | Thermal and environmental barrier coating for ceramic substrates |
US9738788B1 (en) | 2014-05-26 | 2017-08-22 | Hrl Laboratories, Llc | Nanoparticle-coated multilayer shell microstructures |
US10030292B2 (en) | 2014-05-26 | 2018-07-24 | Hrl Laboratories, Llc | Hydride-coated microparticles and methods for making the same |
US10648082B1 (en) | 2014-09-21 | 2020-05-12 | Hrl Laboratories, Llc | Metal-coated reactive powders and methods for making the same |
US10682699B2 (en) | 2015-07-15 | 2020-06-16 | Hrl Laboratories, Llc | Semi-passive control of solidification in powdered materials |
US10502130B2 (en) | 2016-02-17 | 2019-12-10 | GM Global Technology Operations LLC | Composite thermal barrier coating |
US10865464B2 (en) | 2016-11-16 | 2020-12-15 | Hrl Laboratories, Llc | Materials and methods for producing metal nanocomposites, and metal nanocomposites obtained therefrom |
US20190032175A1 (en) | 2017-02-01 | 2019-01-31 | Hrl Laboratories, Llc | Aluminum alloys with grain refiners, and methods for making and using the same |
US11286543B2 (en) | 2017-02-01 | 2022-03-29 | Hrl Laboratories, Llc | Aluminum alloy components from additive manufacturing |
US11998978B1 (en) | 2017-02-01 | 2024-06-04 | Hrl Laboratories, Llc | Thermoplastic-encapsulated functionalized metal or metal alloy powders |
US11674204B2 (en) | 2017-02-01 | 2023-06-13 | Hrl Laboratories, Llc | Aluminum alloy feedstocks for additive manufacturing |
US11052460B2 (en) | 2017-02-01 | 2021-07-06 | Hrl Laboratories, Llc | Methods for nanofunctionalization of powders, and nanofunctionalized materials produced therefrom |
US12012646B1 (en) | 2017-02-01 | 2024-06-18 | Hrl Laboratories, Llc | Additively manufacturing components containing nickel alloys, and feedstocks for producing the same |
US11396687B2 (en) | 2017-08-03 | 2022-07-26 | Hrl Laboratories, Llc | Feedstocks for additive manufacturing, and methods of using the same |
US10960497B2 (en) | 2017-02-01 | 2021-03-30 | Hrl Laboratories, Llc | Nanoparticle composite welding filler materials, and methods for producing the same |
US11578389B2 (en) | 2017-02-01 | 2023-02-14 | Hrl Laboratories, Llc | Aluminum alloy feedstocks for additive manufacturing |
US11779894B2 (en) | 2017-02-01 | 2023-10-10 | Hrl Laboratories, Llc | Systems and methods for nanofunctionalization of powders |
US11117193B2 (en) | 2017-02-01 | 2021-09-14 | Hrl Laboratories, Llc | Additive manufacturing with nanofunctionalized precursors |
US10851711B2 (en) | 2017-12-22 | 2020-12-01 | GM Global Technology Operations LLC | Thermal barrier coating with temperature-following layer |
US11865641B1 (en) | 2018-10-04 | 2024-01-09 | Hrl Laboratories, Llc | Additively manufactured single-crystal metallic components, and methods for producing the same |
CN115945684B (zh) * | 2022-12-02 | 2024-09-03 | 中国核动力研究设计院 | 一种钨合金空心球及其制备方法和应用 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3528809A (en) * | 1965-04-15 | 1970-09-15 | Canadian Patents Dev | Hollow article production |
US3420645A (en) * | 1966-06-16 | 1969-01-07 | Corning Glass Works | Method for making hollow glass particle having a metallic copper coating |
US3792139A (en) * | 1972-08-09 | 1974-02-12 | Us Army | Process for flattening alumina substrates |
DE2462128C3 (de) * | 1974-01-07 | 1978-04-06 | Toyo Kohan Co., Ltd., Tokio | Verfahren zur Herstellung dünnwandiger Metallhohlkörper |
US3975194A (en) * | 1974-03-04 | 1976-08-17 | Canadian Patents And Development Limited | Formation of hollow spherical articles |
US3997435A (en) * | 1975-10-29 | 1976-12-14 | The United States Of America As Represented By The United States Energy Research And Development Administration | Method for selecting hollow microspheres for use in laser fusion targets |
US4637990A (en) * | 1978-08-28 | 1987-01-20 | Torobin Leonard B | Hollow porous microspheres as substrates and containers for catalysts and method of making same |
US4415512A (en) * | 1979-07-20 | 1983-11-15 | Torobin Leonard B | Method and apparatus for producing hollow metal microspheres and microspheroids |
DE3640586A1 (de) * | 1986-11-27 | 1988-06-09 | Norddeutsche Affinerie | Verfahren zur herstellung von hohlkugeln oder deren verbunden mit wandungen erhoehter festigkeit |
DE3724156A1 (de) * | 1987-07-22 | 1989-02-02 | Norddeutsche Affinerie | Verfahren zum herstellen von metallischen oder keramischen hohlkugeln |
DE3902032A1 (de) * | 1989-01-25 | 1990-07-26 | Mtu Muenchen Gmbh | Gesintertes leichtbaumaterial mit herstellungsverfahren |
US4925740A (en) * | 1989-07-28 | 1990-05-15 | Rohr Industries, Inc. | Hollow metal sphere filled stabilized skin structures and method of making |
DE19603196A1 (de) * | 1996-01-30 | 1997-08-07 | Hoechst Ag | Anorganische Hohlkugeln, Verfahren zu ihrer Herstellung und ihre Verwendung |
WO1999054655A2 (de) * | 1998-04-20 | 1999-10-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Thermische isolation zum einbringen zwischen zu isolierende gebilde |
-
2000
- 2000-04-14 DE DE10018501A patent/DE10018501C1/de not_active Expired - Fee Related
-
2001
- 2001-02-22 US US10/257,032 patent/US20030077473A1/en not_active Abandoned
- 2001-02-22 JP JP2001576213A patent/JP2003531287A/ja active Pending
- 2001-02-22 DE DE50106257T patent/DE50106257D1/de not_active Expired - Fee Related
- 2001-02-22 EP EP01915064A patent/EP1272300B1/de not_active Expired - Lifetime
- 2001-02-22 AU AU42286/01A patent/AU4228601A/en not_active Abandoned
- 2001-02-22 AT AT01915064T patent/ATE295767T1/de not_active IP Right Cessation
- 2001-02-22 WO PCT/DE2001/000761 patent/WO2001078923A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE10018501C1 (de) | 2001-04-05 |
DE50106257D1 (de) | 2005-06-23 |
EP1272300A1 (de) | 2003-01-08 |
AU4228601A (en) | 2001-10-30 |
US20030077473A1 (en) | 2003-04-24 |
JP2003531287A (ja) | 2003-10-21 |
WO2001078923A1 (de) | 2001-10-25 |
ATE295767T1 (de) | 2005-06-15 |
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