EP0997215A2 - Verfahren zur Herstellung eines metallischen Verbundwerkstoffs mit geschäumtem Kern - Google Patents
Verfahren zur Herstellung eines metallischen Verbundwerkstoffs mit geschäumtem Kern Download PDFInfo
- Publication number
- EP0997215A2 EP0997215A2 EP99121390A EP99121390A EP0997215A2 EP 0997215 A2 EP0997215 A2 EP 0997215A2 EP 99121390 A EP99121390 A EP 99121390A EP 99121390 A EP99121390 A EP 99121390A EP 0997215 A2 EP0997215 A2 EP 0997215A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixture
- cover layers
- printing device
- powder
- composite
- 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
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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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
- B22F7/004—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part
- B22F7/006—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature comprising at least one non-porous part the porous part being obtained by foaming
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- 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
Definitions
- the invention relates to a method for producing a metallic composite material comprehensive cover layers made of solid material and one between them located foamable core consisting of a mixture of at least one metal powder and at least one gas-releasing propellant powder, from the cover layers and the mixture is made into a composite, optionally after shaping is treated thermally in such a way that the core is foamed.
- a corresponding method can be found in DE 44 26 627 C2. This will start with the foamable core by compression by means of pressure and temperature Mixture of at least one metal powder and at least one gas-releasing Propellant powder produced. Then there is a surface treatment of both the core as well as the cover layers, which can be sheet metal blanks unwound from a coil. Then the foamable core, which can be called a semi-finished product, is placed between the cover layers arranged to so by cold or hot rolling or diffusion welding formed package an intimate connection between the deck layers and the core to manufacture. Then a shaping takes place by pressing, bending or deep drawing of the resulting association. Finally, the composite thus produced is thermally Process heated such that foaming of the core is triggered without it melting of the outer layers.
- DE 41 24 591 C1 relates to a method for producing foamable metal bodies by rolling, the required powder mixture being filled into a hollow metal profile and is rolled.
- different shapes are required to produce different shapes Hollow metal profiles required. If the hollow metal profiles have small cross sections, it poses problems to introduce the powder mixture in the required tightness.
- DE 196 12 781 C1 describes a method for producing a component from metallic Foam material known. First of all, a semi-finished product is produced by compression and solidifying a mixture of metal powder and blowing agent. Then can provide the semi-finished product with a solid metal sheet on at least one side in order to then uniformly form the composite and heat treat it Foaming metal powder containing foaming agents.
- a foamable body that is, one with closed porosity, which then plated.
- the present invention is based on the problem of a method as described above Kind in such a way that there is a procedural simplification in the production of foamable metal bodies, whereby it should be ensured that the Mixture containing blowing agent powder for the production of the foamable core in required Scope is compressed.
- the problem is solved in that in a common process step, the cover layers are formed together with the mixture to form the composite by the action of pressure, the cover layers being guided through the printing device at a distance from one another, the mixture being filled between the cover layers guided at a distance from one another, and these being put together be connected to the cover layers in the printing device.
- the mixture is fed to the printing device in an oxidation-protected manner.
- the mixture is introduced or filled in between the cover layers in a protective gas atmosphere such as an N 2 atmosphere.
- the mixture together with the cover layers in the Printing device can be connected to the composite by cold or hot rolling.
- the invention is a method for producing metallic composite materials proposed, in which not only the closed-pore core is first produced in order to treat it after a surface treatment with those that are also on the core side To connect surfaces of the cover layers. Rather, in a single or simultaneously running process step, the non-foamable mixture with the Cover layers pressed to provide a composite, which is then in usual way of shaping z. B. subjected to pressing, bending or deep drawing can then be heated in such a way that the composite so produced that foaming of the core takes place without, however, the melting temperature of the outer layers is achieved. There is a high degree of variability in the dimensioning of the network given, since the distance between the cover layers can be adjusted easily can, which in turn dictates the density of the composite.
- the manufacture of the closed-pore core and the provision of a covering layer accordingly takes place in a simultaneous or almost simultaneous process step.
- the sheet materials such the printing device be fed that there is a hopper for the powder.
- the printing device can a roll stand with a large number of successive layers on the powder / core / cover layer acting rollers include.
- the powder during feeding into the printing device or compressed immediately before.
- the powder can be continuous or discontinuous are fed to the printing device, with pre-compression using screws, Stamping or equivalent mechanical devices can be done.
- the cover layer material which is preferably drawn off from a coil, can are treated on the surface during feeding into the printing device, e.g. B. by brushing, etching or other suitable chemical or mechanical processes, provided that it should not be ensured that the coil material itself is not oxidized on the mixture side or has no impurities or defects that cover the entire area material combination would have a negative impact.
- blowing agents such as metal hydrides are suitable as blowing agent powder in the mixture such as B. titanium hydride or carbonates such.
- B. calcium carbonate, potassium carbonate, Sodium carbonate, sodium bicarbonate or hydrates such as B. aluminum sulfate hydrate, alum, Aluminum hydroxide or easily evaporating substances such as B. mercury compounds or powdered organic substances.
- Aluminum powder mixtures of copper and Aluminum powder or AlMg1 powder, AlMg2 powder or bronze powder in question. Is too Pure aluminum powder, element powder or alloy powder to mention. As typical Alloy elements are to be mentioned: Si, Mg, Cu, Mn, Li, etc. However, this results in one No limitation of the invention.
- cover layer metals which also form part of the mixture can be used as the cover layer are, but also significantly higher melting materials, such as steel sheets, which may be treated galvanically (e.g. aluminized) to improve them produce metallic composite.
- steel sheets preferably aluminized cover plates (aluminized on one side, in order to improve plating behavior and to achieve an ideal cohesive bond).
- a powder mixture of aluminum powder and 12% by weight silicon powder and 0.8% by weight Titanium hydride powder is made between two metal strips that run along pressure rollers Filled with aluminum, the pressure rollers exerting pressure on the metal strips Apply powder mixture.
- the temperature during rolling is about 300 ° C to 400 ° C.
- the thus manufactured composite with a total thickness of 4 mm was in an ideal foam temperature preheated oven foamed.
- Aluminum-based sandwich sheets were about 10 mm after the foaming process.
- a powder mixture of pure aluminum powder and 0.8 wt.% Titanium hydride was between introduced through a rolling device aluminized steel strips and by means of The effect of pressure between the steel sheets is compressed, due to increased process temperatures a metallic bond between the layers could be made.
- the way Composite with a total thickness of 4.8 mm was produced in an ideal foaming temperature preheated oven foamed. The thickness of the manufactured in this way Aluminum-based sandwich sheets were around 12.5 mm after the foaming process.
- a powder mixture of aluminum powder and 12% by weight silicon powder and 0.8% by weight Titanium hydride powder is made between two metal strips that run along pressure rollers Aluminum filled, the pressure rollers exerting pressure on the metal strips Apply powder mixture.
- the temperature during rolling is 300 ° C to 400 ° C.
- the flat composite was turned into a spatially curved one Formed structure and then exposed to an ideal foaming temperature, to foam up the core. The result is a foamed end product with a thickness of approx. 14 mm based on a semi-finished product thickness that was 4.0 mm.
- a device to be used to carry out the method according to the invention is pure principally the single figure, the further details, advantages and features conveyed the invention.
- a plate or strip-shaped composite 10 having a sandwich structure consisting of a core 12 and covering these on opposite sides
- a printing device 18 with rollers 20, 22 is used, between which, on the one hand, the cover layers 14, 16 are drawn off from coils (not shown) forming sheet metal strips 24, 26 and, on the other hand, a powder mixture 28, in order to to produce the composite 10.
- the strip material used is preferably that of aluminum, high-melting aluminum alloys or other metals, preferably sheet steel, optionally aluminized.
- the powder 28 itself consists of a mixture of a metal powder, preferably in the form of aluminum, and a gas-releasing propellant powder, such as. B. titanium hydride or calcium carbonate.
- the proportion by weight of the blowing agent powder is preferably 0.2 to 1% by weight of the powder 28 itself.
- the powder 28 can be supplied to the space between the metal strips 24, 26 in a protective gas atmosphere such as N 2 .
- the powder 28 can be removed from a silo in which the powder 28 is protected against oxidation.
- the sheet metal strips 24, 26 at least in front of the rollers 20, 22 and in the area of which are guided between boundaries running along the longitudinal edge, to prevent the powder 28 from escaping sideways.
- the side Limits can be formed as a stamp in order to easily adapt to strip materials different widths.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Laminated Bodies (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
Description
Claims (8)
- Verfahren zur Herstellung von einem metallischen Verbundwerkstoff umfassend Decksehichten aus massivem Material sowie einem zwischen diesen vorhandenen aufschäumbaren Kern bestehend aus einer Mischung aus mindestens einem Metallpulver und mindestens einem gasabspaltenden Treibmittelpulver, wobei aus den Deckschichten und der Mischung ein Verbund hergestellt wird, der nach gegebenenfalls einer Formgebung thermisch derart behandelt wird, dass der Kern aufschäumt,
dadurch gekennzeichnet,
dass in einem gemeinsamen Verfahrensschritt durch Druckeinwirkung die Deckschichten zusammen mit der Mischung zu dem Verbund ausgebildet werden, wobei die Deckschichten zueinander beabstandet durch die Druckeinrichtung geführt werden, zwischen die zueinander beabstandet geführten Deckschichten die Mischung eingefüllt wird und diese zusammen mit den Deckschichten in der Druckeinrichtung verbunden werden. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Mischung zusammen mit den Deckschichten in der Druckeinrichtung durch Kalt- oder Warmwalzen zu dem Verbund verbunden werden. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Mischung während des Zuführens in die Druckeinrichtung oder unmittelbar zuvor verdichtet wird. - Verfahren nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Mischung oxidationsgeschützt der Druckeinrichtung zugeführt wird. - Verfahren nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Mischung in Schutzgasatmosphäre zwischen die Deckschichten eingeführt bzw. eingefüllt wird. - Verfahren nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Mischung vor dem Zuführen zu der Druckeinrichtung unter N2-Atmosphäre gelagert wird. - Verfahren nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Mischung kontinuierlich oder diskontinuierlich der Druckeinrichtung zugeführt wird. - Verfahren nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Deckschicht vor dem Zuführen der Mischung mischungsseitig vorbehandelt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19849600 | 1998-10-28 | ||
DE19849600A DE19849600C1 (de) | 1998-10-28 | 1998-10-28 | Verfahren zur Herstellung von einem metallischen Verbundwerkstoff |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0997215A2 true EP0997215A2 (de) | 2000-05-03 |
EP0997215A3 EP0997215A3 (de) | 2000-11-22 |
EP0997215B1 EP0997215B1 (de) | 2003-09-03 |
Family
ID=7885859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99121390A Expired - Lifetime EP0997215B1 (de) | 1998-10-28 | 1999-10-27 | Verfahren zur Herstellung eines metallischen Verbundwerkstoffs mit geschäumtem Kern |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0997215B1 (de) |
AT (1) | ATE248676T1 (de) |
DE (2) | DE19849600C1 (de) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1014116C2 (nl) * | 2000-01-19 | 2001-07-20 | Corus Aluminium Walzprod Gmbh | Werkwijze en inrichting voor het vormen van een laminaat van gecomprimeerd metaalpoeder met een schuimmiddel tussen twee metaallagen, en daarmee gevormd produkt. |
WO2002016064A1 (de) * | 2000-08-25 | 2002-02-28 | Christian Steglich | Verfahren und einrichtung zur herstellung von verbundwerkstoffen mit einem kern aus metallschaum |
DE10136370B4 (de) * | 2001-07-26 | 2005-03-31 | Schwingel, Dirk, Dr. | Verbundwerkstoff und daraus hergestelltes Bauteil bestehend aus einem aufgeschäumten Metallkern und massiven Deckblechen, sowie Verfahren zur Herstellung |
DE102008027798A1 (de) | 2008-06-11 | 2009-12-24 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Aluminiumlegierung für Metallschäume, ihre Verwendung und Verfahren zur Herstellung |
DE102009020004A1 (de) * | 2009-05-05 | 2010-11-11 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Pulvermetallurgisches Verfahren zur Herstellung von Metallschaum |
AT509976B1 (de) * | 2010-12-13 | 2012-01-15 | Wien Stadt | Tracheostomaverschluss |
DE202013103272U1 (de) | 2013-07-22 | 2014-10-23 | Wegener International Gmbh | Heizeinrichtung für die Plastifizierung von Werkstücken aus einem thermoplastischen Kunststoff |
WO2016156186A1 (de) | 2015-03-31 | 2016-10-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. | Verfahren zur herstellung von geschäumten sandwichelementen |
US20190032183A1 (en) * | 2016-03-11 | 2019-01-31 | Nippon Steel & Sumitomo Metal Corporation | Titanium product and method for producing the same |
DE102017121512A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zum Schäumen von Metall mit Wärmekontakt |
DE102017121513A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zum Schäumen von Metall im Flüssigkeitsbad |
WO2019053192A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zur herstellung eines halbzeuges für einen verbundwerkstoff |
WO2019053181A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zum schäumen von metall mit wärmekontakt |
WO2023061853A1 (de) * | 2021-10-11 | 2023-04-20 | HAVEL metal foam GmbH | Verfahren und vorrichtung zum herstellen einer aufschäumbaren, bandförmigen presspulver-metallplatine mittels kaltwalzen sowie presspulver-metallplatine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006025933A1 (de) * | 2006-05-10 | 2007-11-22 | WKW Erbslöh Automotive GmbH | Dachreling sowie Verfahren zur Herstellung einer solchen Dachreling |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1347062A (fr) * | 1962-10-19 | 1963-12-27 | Yawata Iron & Steel Co | Procédé de fabrication de tôles métalliques et de tôles métalliques composites par un procédé de frittage et laminage de poudre métallique |
DE4124591C1 (en) * | 1991-01-21 | 1993-02-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | Foamable metal body prodn. with reduced density differences - by charging hollow section with mixt. of powder contg. expanding agent and metal powder, and precompacting |
US5564064A (en) * | 1995-02-03 | 1996-10-08 | Mcdonnell Douglas Corporation | Integral porous-core metal bodies and in situ method of manufacture thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4101630A1 (de) * | 1990-06-08 | 1991-12-12 | Fraunhofer Ges Forschung | Verfahren zur herstellung aufschaeumbarer metallkoerper und verwendung derselben |
DE4426627C2 (de) * | 1993-07-29 | 1997-09-25 | Fraunhofer Ges Forschung | Verfahren zur Herstellung eines metallischen Verbundwerkstoffes |
DE19612781C1 (de) * | 1996-03-29 | 1997-08-21 | Karmann Gmbh W | Bauteil aus metallischem Schaumwerkstoff, Verfahren zum Endformen dieses Bauteils und Vorrichtung zur Ausführung des Verfahrens |
-
1998
- 1998-10-28 DE DE19849600A patent/DE19849600C1/de not_active Expired - Fee Related
-
1999
- 1999-10-27 DE DE59906842T patent/DE59906842D1/de not_active Expired - Fee Related
- 1999-10-27 EP EP99121390A patent/EP0997215B1/de not_active Expired - Lifetime
- 1999-10-27 AT AT99121390T patent/ATE248676T1/de not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1347062A (fr) * | 1962-10-19 | 1963-12-27 | Yawata Iron & Steel Co | Procédé de fabrication de tôles métalliques et de tôles métalliques composites par un procédé de frittage et laminage de poudre métallique |
DE4124591C1 (en) * | 1991-01-21 | 1993-02-11 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De | Foamable metal body prodn. with reduced density differences - by charging hollow section with mixt. of powder contg. expanding agent and metal powder, and precompacting |
US5564064A (en) * | 1995-02-03 | 1996-10-08 | Mcdonnell Douglas Corporation | Integral porous-core metal bodies and in situ method of manufacture thereof |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1014116C2 (nl) * | 2000-01-19 | 2001-07-20 | Corus Aluminium Walzprod Gmbh | Werkwijze en inrichting voor het vormen van een laminaat van gecomprimeerd metaalpoeder met een schuimmiddel tussen twee metaallagen, en daarmee gevormd produkt. |
WO2001053023A1 (en) * | 2000-01-19 | 2001-07-26 | Corus Aluminium Walzprodukte Gmbh | Laminate of metal powder and foaming agent between two metal layers |
US7037453B2 (en) | 2000-01-19 | 2006-05-02 | Corus Aluminium Walzprodukte Gmbh | Laminate of metal powder and foaming agent between two metal layers |
WO2002016064A1 (de) * | 2000-08-25 | 2002-02-28 | Christian Steglich | Verfahren und einrichtung zur herstellung von verbundwerkstoffen mit einem kern aus metallschaum |
DE10136370B4 (de) * | 2001-07-26 | 2005-03-31 | Schwingel, Dirk, Dr. | Verbundwerkstoff und daraus hergestelltes Bauteil bestehend aus einem aufgeschäumten Metallkern und massiven Deckblechen, sowie Verfahren zur Herstellung |
DE102008027798A1 (de) | 2008-06-11 | 2009-12-24 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Aluminiumlegierung für Metallschäume, ihre Verwendung und Verfahren zur Herstellung |
EP2143809A1 (de) | 2008-06-11 | 2010-01-13 | Helmholtz-Zentrum Berlin für Materialien und Energie GmbH | Aluminiumlegierung für Metallschäume, ihre Verwendung und Verfahren zur Herstellung |
DE102009020004A1 (de) * | 2009-05-05 | 2010-11-11 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Pulvermetallurgisches Verfahren zur Herstellung von Metallschaum |
AT509976B1 (de) * | 2010-12-13 | 2012-01-15 | Wien Stadt | Tracheostomaverschluss |
EP2829382A1 (de) | 2013-07-22 | 2015-01-28 | Wegener International GmbH | Heizeinrichtung für die Plastifizierung von Werkstücken aus einem thermoplastischen Kunststoff |
DE202013103272U1 (de) | 2013-07-22 | 2014-10-23 | Wegener International Gmbh | Heizeinrichtung für die Plastifizierung von Werkstücken aus einem thermoplastischen Kunststoff |
WO2016156186A1 (de) | 2015-03-31 | 2016-10-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. | Verfahren zur herstellung von geschäumten sandwichelementen |
DE102015205829A1 (de) | 2015-03-31 | 2016-10-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung von geschäumten Sandwichelementen |
DE102015205829B4 (de) * | 2015-03-31 | 2017-01-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung von geschäumten Sandwichelementen |
US20190032183A1 (en) * | 2016-03-11 | 2019-01-31 | Nippon Steel & Sumitomo Metal Corporation | Titanium product and method for producing the same |
US11542581B2 (en) * | 2016-03-11 | 2023-01-03 | Nippon Steel Corporation | Titanium product and method for producing the same |
DE102017121513A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zum Schäumen von Metall im Flüssigkeitsbad |
WO2019053192A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zur herstellung eines halbzeuges für einen verbundwerkstoff |
DE102017121511A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zur Herstellung eines Halbzeuges für einen Verbundwerkstoff |
WO2019053184A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zum schäumen von metall im flüssigkeitsbad |
WO2019053181A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zum schäumen von metall mit wärmekontakt |
DE102017121512A1 (de) | 2017-09-15 | 2019-03-21 | Pohltec Metalfoam Gmbh | Verfahren zum Schäumen von Metall mit Wärmekontakt |
WO2023061853A1 (de) * | 2021-10-11 | 2023-04-20 | HAVEL metal foam GmbH | Verfahren und vorrichtung zum herstellen einer aufschäumbaren, bandförmigen presspulver-metallplatine mittels kaltwalzen sowie presspulver-metallplatine |
Also Published As
Publication number | Publication date |
---|---|
EP0997215B1 (de) | 2003-09-03 |
DE19849600C1 (de) | 2001-02-22 |
DE59906842D1 (de) | 2003-10-09 |
ATE248676T1 (de) | 2003-09-15 |
EP0997215A3 (de) | 2000-11-22 |
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