EP1765536A2 - Verfahren zum herstellen von erzeugnissen aus metall - Google Patents
Verfahren zum herstellen von erzeugnissen aus metallInfo
- Publication number
- EP1765536A2 EP1765536A2 EP05748361A EP05748361A EP1765536A2 EP 1765536 A2 EP1765536 A2 EP 1765536A2 EP 05748361 A EP05748361 A EP 05748361A EP 05748361 A EP05748361 A EP 05748361A EP 1765536 A2 EP1765536 A2 EP 1765536A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal
- molten metal
- gas
- atomized
- gas nozzle
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 106
- 239000002184 metal Substances 0.000 title claims abstract description 106
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 76
- 239000011265 semifinished product Substances 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000000047 product Substances 0.000 claims abstract description 19
- 239000011888 foil Substances 0.000 claims abstract description 15
- 239000007921 spray Substances 0.000 claims description 28
- 238000002844 melting Methods 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 13
- 150000002739 metals Chemical class 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 239000010955 niobium Substances 0.000 claims description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052702 rhenium Inorganic materials 0.000 claims description 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims description 3
- 229910000601 superalloy Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 150000004767 nitrides Chemical class 0.000 claims 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- -1 harfnium Chemical compound 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 150000001247 metal acetylides Chemical class 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 229910052718 tin Inorganic materials 0.000 claims 1
- 239000011135 tin Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 41
- 239000010408 film Substances 0.000 description 13
- 230000008018 melting Effects 0.000 description 12
- 230000006698 induction Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009689 gas atomisation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
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
- 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
- B22F9/082—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 atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/003—Moulding by spraying metal on a surface
-
- 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
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/123—Spraying molten metal
Definitions
- the invention relates to a method for producing products from metal, in particular powders, foils, coatings and moldings, such as bolts, pipes or sheets, from metals, which are used in the form of semi-finished products.
- reactive metals such as titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, rhenium and their alloys, as well as of superalloys (alloys based on nickel or cobalt), are decisive for their purity, in particular through determines the absence of oxides and ceramic contaminants. Because of the high melting points of the metals and alloys mentioned and the mechanical properties thereof, forming processes and processes for machining are very time-consuming.
- a method for plasma coating components and for spray compacting foils made of nickel-titanium alloys is known from US Pat. No. 6,043,451.
- the metal is fed to a plasma torch as a powder or wire.
- the production of powder and wire is very complex and expensive and requires at least one production stage based on (large format) semi-finished products. With powdered metal, there is also an increased risk of oxygen uptake due to the large surface area.
- a disadvantage of the method known from US Pat. No. 6,043,451 A is the formation of a conical spray jet made of molten metal due to the radial symmetry of the plasma torch, as a result of which wider foils or coatings can only be produced by overlapping several spray cones or spraying several times with the same spray cone.
- the layers produced in this way have an undesired, inhomogeneous surface profile (cf. FIG. 2a).
- the production output is very low at only 3 kg / h (50 g / min) and is therefore not very suitable for the production of thicker films or coatings or semi-finished products such as bolts, pipes or sheets.
- the atomization of liquids by gas atomization is known.
- DE 197 58 111 A describes a method for manufacturing known from metal powders.
- the molten metal emerges in the form of a film from a nozzle with a slot-shaped outlet opening.
- the film is stabilized by a laminar gas flow in a Laval gas nozzle and then finely atomized.
- the productivity of the nozzle system can be changed as desired by lengthening the nozzle slot without adversely affecting the powder quality.
- the present invention has for its object to provide a method of the type mentioned, with the direct transfer of metal, which is available for example as a commercially available semi-finished product in powder, metal foils, surface coatings or other-sized products (semi-finished products) with high productivity inexpensively and is possible without the risk of contamination.
- metal in the form of a commercially available semi-finished product which for example has the shape of a cuboid
- This spray jet is used to produce the desired metal product.
- metal powders can be produced by the method according to the invention, it being particularly advantageous in embodiments that the method according to the invention also makes it possible to produce metal powders from reactive metals. In any case, it is ensured that contamination of the metal is excluded or at least largely prevented in the method according to the invention.
- the process according to the invention can also be used to produce other metal products, for example by coating surfaces or producing semi-finished products such as foils, sheets or bolts.
- the metal of the semi-finished product can be melted, atomized, sprayed onto a carrier and solidified on the carrier.
- the method according to the invention can also be used, for example, for coating workpieces.
- semi-finished products e.g. a bolt, of metal, which has a substantially rectangular cross-sectional shape, is inductively melted on the surface of its two long sides of its end face.
- the melting face is within the laminar gas flow of a linear nozzle.
- the two halves of the linear venturi nozzle preferably consist of a material which is not coupled to the magnetic field of the induction heating.
- tubes made of metal, preferably copper, are let into the venturi half-nozzle and serve as conductors for the inductive excitation current with simultaneous cooling by a cooling fluid, for example water.
- a cooling fluid for example water.
- the tubes are connected to each other at the ends of the Venturi half nozzle via additional tubes.
- the gas streams sweep over the melting surface of the semi-finished part, for example in the form of a bolt. stuff and promote the melt in the form of two very thin films to the pin tip. Here both films combine and the resulting melt film is further stabilized, accelerated and finally atomized into fine droplets by the laminar gas flow.
- the liquid (melt) film does not have to emerge from the nozzle with a downward movement.
- the method according to the invention works independently of the position, ie not only vertically upwards, but also horizontally or vertically downwards, as well as in any other orientation.
- the guidance of the liquid film, in particular the film of molten metal, through the gas flow is stronger than the gravity acting on the melt.
- the independence of the position of the atomizing nozzle gives the designer of nozzle systems according to the invention design degrees of freedom that can be used in a reduction in the overall height of the system.
- the method according to the invention is carried out in a container, in one embodiment a practically continuous production of metal products is possible by connecting a new semi-finished product to the semi-finished product which has almost been used up by melting, e.g. is connected by at least one weld seam.
- the actual atomization process can be carried out continuously and inexpensively by repeated introduction and welding of further semi-finished products, in particular semi-finished products in the form of metal bars.
- FIG. 1 schematically shows an arrangement for carrying out the method according to the invention
- FIG. 2 shows another arrangement for carrying out the method according to the invention
- FIG. 3a shows a coating as can be obtained according to the prior art (US Pat. No. 6,043,451 A)
- FIG. 3b a coating as can be produced when using the method according to the invention.
- FIG. 1 is an example of an application of the method according to the invention for producing a metal foil.
- This arrangement consists of an elongated (linear) gas nozzle 1, in which water-cooled copper pipes 2 are arranged.
- the copper pipes 2 are used to generate an inductive magnetic field.
- the semi-finished product 3 to be processed made of metal with an essentially rectangular cross section is introduced into the elongated inlet opening of the gas nozzle 1 and melted contactlessly on its long sides under the action of the inductive magnetic field.
- a gas flow 4 which is directed towards the elongated mouth of the gas nozzle 1 by a device which is not shown in more detail and which is preferably symmetrical, that is to say is directed into the gas nozzle 1 from both sides of the semi-finished product 3, takes the molten metal with it and conveys it to form a thin film 5 through the mouth of the gas nozzle 1.
- the gas nozzle 1 used in the invention can be designed as a Laval nozzle or as a Venturi nozzle. After passing through the narrowest point of the gas nozzle 1 (elongated mouth thereof), the film 5 of molten metal is atomized into a linear, wedge-shaped, essentially tent-shaped spray jet 6. In the exemplary embodiment shown, the spray jet 6 is directed onto an endless and cooled metal strip 7 as a carrier.
- the droplets of molten metal are liquid or at least partially liquid at the time of impact with the metal strip 7 and solidify to form a metal foil 8 with a homogeneous surface (except for the two edges). After it has completely solidified, which can be assisted by forced cooling, and detached from the metal strip 7, the metal foil 8 can be wound up into a foil roll 9.
- the endless metal strip 7 or the semi-finished product - with the exception of the two edges - metal can be applied to the carrier 7 in a uniform thickness.
- 3a shows the spraying result with a conventional round nozzle (cf. US Pat. No. 6,043,451 A), in which several metal beads 1 to 4 are sprayed side by side.
- 3b shows a metal foil 8 which has been produced using the method according to the invention, in which a uniformly thick metal layer (foil 8) is produced in a single spraying process.
- the productivity of the method of the invention can be set as desired via the length of the spray jet and via the melting heating power of the induction heating.
- the metal which is preferably added as a raw material in the form of semi-finished products, is converted into the desired end product in one work step, therefore only comes into contact with the atomizing gas and, if the purity of the gas atmosphere is high enough, can be converted into the metal product without increasing impurities become.
- reactive metal or alloy is thermally compressed by spray compacting, the starting material in the form of semi-finished products being melted without contact, in particular inductively, and atomized to form a linear, wedge-shaped spray jet.
- the particles of the spray jet are, for example, solidified into metal powder, spray-compacted on a substrate to form a product or applied to a component as a surface coating.
- any metals in particular reactive metals such as titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, rhenium or an alloy based on these metals can be processed.
- the method according to the invention is suitable for processing a nickel-titanium alloy or a superalloy based on nickel or cobalt.
- the semi-finished product to be processed is a composite material consisting of high-melting phases and low-melting binder matrix.
- the high melting phase can be a carbide.
- the method according to the invention can be used, inter alia, to produce products in the form of films, sheets, tubes or bolts.
- One advantage of the method according to the invention is that the purity of the product differs only slightly from the purity of the starting material (semi-finished product).
- dispersoids are introduced in a targeted manner via a further nozzle.
- Such dispersides can be, for example: silicon carbide, tungsten carbide, corundum (A1 2 0 3 ) or zirconium oxide.
- the purpose of adding such dispersoids and other additives, which can also be volatile, is to influence the properties of the process product in the desired direction.
- a release agent can be applied to the substrate before the spray compacting.
- the method according to the invention can be carried out in particular in the production of metal powder as described below using an example.
- a rod made of titanium with a rectangular cross-section (initial dimensions: width 50 mm, thickness 40 mm, length 3000 mm) is melted crucible with an induction frequency of 350 kHz and with 5 kg / min atomized.
- a new rod after having passed the pre-lock chamber with inerting and pressure equalization, is brought to the end of the first rod facing away from the atomization, and the two rods become on their two The sides facing away from the melting unit are linearly welded together using a laser beam without filler material.
- FIG. provides. This device has a linear gas nozzle 10 with internal supply of the primary atomizing gas 13. An induction coil 12 is integrated in the linear gas nozzle 10. As indicated schematically in FIG. 2, primary atomizing gas 13 emerges from the linear gas nozzle 10, namely symmetrically in the exemplary embodiment shown, so that two streams of primary atomizing gas 13 are present.
- a secondary gas flow 14 is provided in the linear gas nozzle 10, which forms a melt film 21 on the metal that melts from the metal rod 15 with a rectangular cross section.
- the melting metal rod 15 is advanced towards the gas nozzle 10 by rotatingly driven guide rollers 18.
- the primary guest streams 13 are generated by the atomizing gas supplied primarily within the gas nozzle 10.
- the primary gas streams 13 generate a local negative pressure, through which gas is sucked in, which forms the secondary gas streams 14 serving as support gas.
- the entire arrangement is housed in a housing 19 which is filled with an inert gas, in particular argon, the gas in the housing 19 being at the same pressure as the container environment.
- an inert gas in particular argon
- the metal rod 15 can be a rod made of titanium, for example. Under the action of the primary atomizing gas streams 13, a spray jet of metal droplets 22 is formed from the melt film 21. These droplets of molten metal 22 can solidify into a powder or, as described with reference to FIGS. 1 and 2b, can be spray compacted.
- a further metal rod with a rectangular cross-section can be added to the melting metal rod 15 by connecting it to the metal rod 15 by means of two weld seams 17, which are particularly parallel to 2 are aligned, is connected.
- the tracked metal rod 16 is also guided by rotationally driven guide rollers 18.
- a container 25 is also provided, in which the molten metal (metal droplets or powder particles 22), which is divided into droplets, solidify to form a metal powder.
- the metal of the semi-finished products 15 is melted, atomized and atomized by an inductive magnetic field 12 Chamber 25 is solidified to a powder or sprayed onto a support and solidified on the support.
- the molten metal is supplied in a gas nozzle 10, which is designed either as a Laval nozzle or as a Venturi nozzle, as a film 21, which is stabilized by gas streams 14, and then atomized by further gas streams 13.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Coating By Spraying Or Casting (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05748361T ATE425832T1 (de) | 2004-06-17 | 2005-06-16 | Verfahren zum herstellen von erzeugnissen aus metall |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0102804A AT413702B (de) | 2004-06-17 | 2004-06-17 | Verfahren zum herstellen von erzeugnissen aus metall |
AT13222004 | 2004-08-02 | ||
PCT/AT2005/000214 WO2005123305A2 (de) | 2004-06-17 | 2005-06-16 | Verfahren zum herstellen von erzeugnissen aus metall |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1765536A2 true EP1765536A2 (de) | 2007-03-28 |
EP1765536B1 EP1765536B1 (de) | 2009-03-18 |
Family
ID=35276348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05748361A Not-in-force EP1765536B1 (de) | 2004-06-17 | 2005-06-16 | Verfahren zum herstellen von erzeugnissen aus metall |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080093045A1 (de) |
EP (1) | EP1765536B1 (de) |
AT (1) | ATE425832T1 (de) |
CA (1) | CA2570924A1 (de) |
DE (1) | DE502005006882D1 (de) |
WO (1) | WO2005123305A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108247075A (zh) * | 2018-04-23 | 2018-07-06 | 安徽哈特三维科技有限公司 | 一种用于气雾化法制备超高温金属球形粉体的雾化器装置 |
DE202014011339U1 (de) | 2013-12-20 | 2019-07-15 | Nanoval Gmbh & Co. Kg | Vorrichtung zum tiegelfreien Schmelzen eines Materials und zum Zerstäuben des geschmolzenen Materials zum Herstellen von Pulver |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102006051936B4 (de) | 2006-11-01 | 2014-03-20 | Zollern Bhw Gleitlager Gmbh & Co. Kg | Verfahren zur Herstellung zweier miteinander verbundener Schichten und nach dem Verfahren herstellbares Funktionsbauteil |
DE102013008396B4 (de) | 2013-05-17 | 2015-04-02 | G. Rau Gmbh & Co. Kg | Verfahren und Vorrichtung zum Umschmelzen und/oder Umschmelzlegieren metallischer Werkstoffe, insbesondere von Nitinol |
FR3054462B1 (fr) * | 2016-07-29 | 2020-06-19 | Safran Aircraft Engines | Procede d'atomisation de gouttes metalliques en vue de l'obtention d'une poudre metallique |
DE102019122000A1 (de) | 2019-08-15 | 2021-02-18 | Ald Vacuum Technologies Gmbh | Verfahren und Vorrichtung zum Zerteilen einer elektrisch leitfähigen Flüssigkeit |
Family Cites Families (10)
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US2864137A (en) * | 1952-10-25 | 1958-12-16 | Helen E Brennan | Apparatus and method for producing metal strip |
GB1359486A (en) * | 1970-06-20 | 1974-07-10 | Vandervell Products Ltd | Methods and apparatus for producing composite metal material |
GB1517283A (en) * | 1974-06-28 | 1978-07-12 | Singer Alec | Production of metal articles |
JPS6217103A (ja) * | 1985-07-16 | 1987-01-26 | Tanaka Kikinzoku Kogyo Kk | 金属粉末の製造方法 |
DE3533964C1 (de) * | 1985-09-24 | 1987-01-15 | Alfred Prof Dipl-Ing Dr-I Walz | Verfahren und Vorrichtung zum Herstellen von Feinstpulver in Kugelform |
US5022455A (en) * | 1989-07-31 | 1991-06-11 | Sumitomo Electric Industries, Ltd. | Method of producing aluminum base alloy containing silicon |
DE4102101C2 (de) * | 1991-01-25 | 2003-12-18 | Ald Vacuum Techn Ag | Einrichtung zum Herstellen von Pulvern aus Metallen |
US5609922A (en) * | 1994-12-05 | 1997-03-11 | Mcdonald; Robert R. | Method of manufacturing molds, dies or forming tools having a cavity formed by thermal spraying |
WO1999011407A1 (fr) * | 1997-08-29 | 1999-03-11 | Pacific Metals Co., Ltd. | Procede de production de poudre metallique par atomisation et son appareil |
ATE212681T1 (de) * | 1998-04-17 | 2002-02-15 | Gkn Sinter Metals Gmbh | Verfahren zur herstellung einer gesinterten metallschicht mit offener porosität |
-
2005
- 2005-06-16 WO PCT/AT2005/000214 patent/WO2005123305A2/de not_active Application Discontinuation
- 2005-06-16 US US11/629,658 patent/US20080093045A1/en not_active Abandoned
- 2005-06-16 DE DE502005006882T patent/DE502005006882D1/de not_active Expired - Fee Related
- 2005-06-16 EP EP05748361A patent/EP1765536B1/de not_active Not-in-force
- 2005-06-16 AT AT05748361T patent/ATE425832T1/de not_active IP Right Cessation
- 2005-06-16 CA CA002570924A patent/CA2570924A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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See references of WO2005123305A3 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202014011339U1 (de) | 2013-12-20 | 2019-07-15 | Nanoval Gmbh & Co. Kg | Vorrichtung zum tiegelfreien Schmelzen eines Materials und zum Zerstäuben des geschmolzenen Materials zum Herstellen von Pulver |
CN108247075A (zh) * | 2018-04-23 | 2018-07-06 | 安徽哈特三维科技有限公司 | 一种用于气雾化法制备超高温金属球形粉体的雾化器装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2005123305A3 (de) | 2006-06-01 |
EP1765536B1 (de) | 2009-03-18 |
WO2005123305A2 (de) | 2005-12-29 |
CA2570924A1 (en) | 2005-12-29 |
DE502005006882D1 (de) | 2009-04-30 |
ATE425832T1 (de) | 2009-04-15 |
US20080093045A1 (en) | 2008-04-24 |
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