EP4045213A1 - Verfahren und vorrichtung zur herstellung eines metallpulvers - Google Patents
Verfahren und vorrichtung zur herstellung eines metallpulversInfo
- Publication number
- EP4045213A1 EP4045213A1 EP20788712.6A EP20788712A EP4045213A1 EP 4045213 A1 EP4045213 A1 EP 4045213A1 EP 20788712 A EP20788712 A EP 20788712A EP 4045213 A1 EP4045213 A1 EP 4045213A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- melt
- nozzle
- tundish
- metal powder
- producing
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 83
- 239000002184 metal Substances 0.000 title claims abstract description 83
- 239000000843 powder Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims description 14
- 239000000155 melt Substances 0.000 claims abstract description 93
- 239000002245 particle Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 229910052737 gold Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052709 silver Inorganic materials 0.000 claims abstract description 4
- 229910052718 tin Inorganic materials 0.000 claims abstract description 4
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 4
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 60
- 230000001154 acute effect Effects 0.000 claims description 10
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 2
- 239000012943 hotmelt Substances 0.000 description 11
- 238000000889 atomisation Methods 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 229910001111 Fine metal Inorganic materials 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
-
- 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
- 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
-
- 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
- B22F2009/0824—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 with a specific atomising fluid
-
- 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
- B22F2009/088—Fluid nozzles, e.g. angle, distance
-
- 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
- B22F2009/0888—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 casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
-
- 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
Definitions
- the present invention relates to a method for producing a metal powder, comprising the following steps:
- the atomization of melt at high temperatures is already known in the prior art as a method of manufacturing a metal powder.
- the centrifugal technique is also used in particular in the prior art Atomization, as a means for the particularly precise production of metal powders.
- CN 105397100 A describes a device and a method for the production of fine metal powders by means of several nozzles and a rotating disk below for atomizing the impinging liquid metal, the metal jets striking the disk coaxially to the disk but laterally offset.
- CN 104550988 A describes a comparable method or a comparable device as CN 105397100 A and CN 104588673 A, the pre-atomization of the metal stream at or after the nozzle by means of a controllable differential pressure between a container in which the liquid metal is stored and a container , in which the rotating metal disc is located, is effected.
- nozzles are each arranged in a stationary manner.
- US Pat. No. 4,701,289 A discloses a device and a method for producing fine metal powders, comprising a rapidly rotating disk and a feed for liquefied metal and coolant arranged above it coaxially but eccentrically to the axis of rotation of the disk, the rotating disk being inclined with respect to the feeds can be asked.
- the object of the present invention is to provide an improved manufacturing method and a device for manufacturing a metal powder.
- the particles of the metal powder should have a size distribution that is as defined as possible or should be as uniform as possible, with the size being adjustable in a simple manner.
- the object of the invention is achieved by a method for producing a metal powder, the method for producing the metal powder comprising the following steps:
- Metal powders of a single metal as well as of alloys and of mixtures are regarded as metal powder according to the invention.
- a tundish according to the invention is any tundish known in the prior art. It goes without saying, however, that it must be a heated or heatable tundish in order to prevent the melt from cooling down and to be able to guarantee a temperature of the melt that is favorable for atomization.
- At least one nozzle for pouring out the melt is provided on the bottom of the tundish, so that the hot melt can be poured onto the rotating turntable.
- it is a nozzle with an outlet that is wide enough to prevent the nozzle from clogging by melt.
- the melt is poured out of the nozzle by gravity.
- the outlet opening of the nozzle typically has a diameter of 1 to 5 mm.
- a rotating turntable according to the invention can be any turntable which is known in the prior art and which is suitable for atomizing a melt in order to be able to produce a metal powder.
- the turntable is preferably a disk with a defined diameter like uniform thickness in order to be able to further influence the shape of the metal powder particles produced.
- the turntable is also preferably heated in order to prevent the melt from solidifying when it hits the turntable and thus preventing the melt from sticking to the turntable.
- the metal is melted in the tundish in order to obtain a hot melt, which is then poured through the nozzle to pour the melt onto the rotating turntable.
- the hot melt hits the rotating turntable, the melt is thrown away from the rotating turntable again due to the centrifugal force and the melt jet is torn apart, as a result of which the melt is torn into metal droplets, which subsequently solidify into metal powder particles.
- the metal powder can be produced in a separate atomization chamber or in a region of that chamber in which the tundish is also located. This chamber is called the furnace chamber. In any case, there is a furnace chamber comprising a tundish in which the metal is melted.
- the furnace chamber and, if appropriate, the atomization chamber can preferably be heated in order to prevent the melt from cooling down too early. Furthermore, it can be provided that the atomization chamber and the furnace chamber are gas-tight in order to prevent the penetration of undesired atmospheric oxygen, which could lead to disadvantageous oxidations in the melt.
- a device for example a gas supply, can also be provided for cooling the metal droplets in order to enable them to solidify more rapidly to form metal powder particles after atomization.
- a device for example a gas supply
- the movement of the tundish or the at least one nozzle for pouring out the melt in the radial direction makes it possible to allow hot melt to impinge on in principle every area of the rotating turntable. It is particularly advantageous that the area in which the melt strikes the turntable is selected in a controlled manner, so that a specific size and / or shape of the metal powder particles can be produced in a targeted manner.
- the turntable according to the invention rotates, as a result of which the centrifugal force required for atomizing the melt is generated.
- the person skilled in the art is aware that when the turntable rotates at a constant number of revolutions per unit of time, for example rpm, the speed of the turntable at the outermost edge of the disk is higher than radially inside. This means that, depending on the impact of the melt, melt droplets of different shapes or sizes and thus subsequently differently shaped or differently sized metal powder particles arise in one area.
- This specific area of the turntable is set by moving the tundish and / or by pivoting the nozzle.
- the at least one nozzle for pouring out the melt is arranged on the bottom of the tundish, wherein the at least one nozzle for pouring out the melt comprises a nozzle section which is pivoted about a zero point position relative to the tundish around the specific Adjust the area of the rotating turntable in order to be able to set the specific area of the turntable in which the melt hits the turntable in a particularly efficient manner.
- the zero point position can e.g. be the vertical, where the nozzle section runs parallel to the direction of the poured melt.
- the nozzle section relative to the tundish is in an angular range between 0 ° and 80 °, preferably 0 ° and 70 °, preferably 0 ° and 60 °, preferably 0 ° and 50 °, preferably 0 ° and 40 ° °, preferably 0 ° and 30 °, preferably 0 ° and 20 °, preferably 0 ° and 10 ° is pivoted around a zero point position in order to set the specific area of the rotating turntable in order to allow the melt to hit the turntable in any desired or predetermined area.
- the nozzle for pouring out the melt is additionally heated in order to prevent the melt in the nozzle from cooling down, becoming more viscous and consequently clogging the nozzle.
- a gas nozzle is also provided, from which a gas flow is emitted, the gas flow being directed at an acute angle onto the melt emerging from the nozzle, around the specific area in which the melt occurs hits the rotating turntable. This enables an even more precise setting of the area in which the melt is to hit the turntable.
- the gas flow has a component in the direction of gravity.
- gas nozzle Any gas nozzle known in the prior art which is suitable for emitting gas in the form of a gas stream can be used as the gas nozzle.
- At an acute angle means that the angle is less than 90 °.
- the melt whose direction of flow follows the force of gravity, can be influenced by the gas flow, which is directed at the melt at an acute angle. Due to the gas flow, the flow direction of the melt changes, whereby a still more precise setting of the area in which the melt hits the turntable is made possible. On the one hand, both the strength of the gas flow and the angle at which the gas flow impinges on the melt can be varied for this purpose. Due to the set angle or the strength of the gas flow, the melt is now deflected as desired from the direction of flow along the force of gravity.
- a further embodiment of the invention provides that the gas nozzle is arranged on the bottom of the tundish at a distance from the nozzle for pouring out the melt, the gas nozzle comprising a gas nozzle section which is pivoted about a zero point position relative to the tundish so that the gas flow hits the melt at an acute angle.
- the zero position can, for example, be the vertical.
- Pivotable means that in principle any area of the turntable can be controlled by moving the pivotable nozzle in order to generate droplets and metal powder particles.
- the gas nozzle can be moved independently of the tundish in the radial direction with respect to the turntable, the gas nozzle comprising a gas nozzle section which is pivoted about a zero position relative to the tundish so that the gas flow at an acute angle on the Melt hits.
- the gas nozzle comprising a gas nozzle section which is pivoted about a zero position relative to the tundish so that the gas flow at an acute angle on the Melt hits.
- Movable in the sense of the present invention means that a corresponding device is provided by means of which the gas nozzle can be moved. This is preferably done by means of a rail system.
- the gas for the gas flow is air or an inert gas, preferably N2, H2, CO, C02, H20, He, Ar, Kr,
- a device for producing a metal powder according to a method according to the invention comprising a gas-tight chamber,
- the gas-tight chamber contains a tundish for producing a melt
- the gas-tight chamber contains a rotatable turntable for atomizing and solidifying the melt
- an area of the rotatable turntable in which the melt hits the rotatable turntable, by moving the tundish and / or the at least one nozzle for pouring of the melt can be adjusted in the radial direction with respect to the turntable in order to adjust the size and / or the shape of the metal powder particles, whereby a precise setting of the area in which the melt strikes the rotatable turntable can be set.
- Gas-tight chamber within the meaning of the invention can be any furnace chamber known in the prior art that is suitable for producing a melt. Gas-tight means that unwanted atmospheric oxygen cannot get into the furnace chamber, so that there can be no unwanted oxidation.
- the device contains a further device with which cooling of the metal droplets is made possible, as a result of which a more rapid and more targeted solidification of the metal droplets into metal powder particles is achieved.
- a device is provided on which the tundish can be moved in the radial direction with respect to the turntable in order to enable a particularly good movement of the tundish in the radial direction.
- a rail system for example with an overhead crane, is particularly suitable as a device according to the invention. It goes without saying, however, that other suitable facilities are not excluded.
- one embodiment of the invention provides that the nozzle section is movably connected to the rest of the nozzle via a joint, preferably a ball joint.
- this ball joint also consists of a material which is suitable for use in connection with hot melts.
- one embodiment of the invention provides that the joint is surrounded by at least one sleeve, preferably two sleeves, in order to seal the joint, preferably the ball joint.
- the at least one sleeve is made of a sintered metal, preferably a carbide, particularly preferably tungsten carbide.
- the nozzle for pouring out the melt comprises the nozzle, optionally the joint, preferably the ball joint, and optionally the at least one sleeve are heatable.
- heating means that the nozzle for pouring out the melt, optionally the joint, preferably the ball joint, and optionally the at least one sleeve, is not only heated by the hot melt itself, but external heating sources can also be used. All heating sources known in the prior art that are suitable for heating these device components can be used as the heating source.
- the distance between the tundish and the turntable is preferably between 2 and 500 mm.
- FIG. 1 shows a schematic representation of a device according to the prior art 2 shows a schematic representation of a device according to the invention.
- a tundish 1 shows a tundish 1, also called a melting furnace, for producing a melt 9, which is part of a gas-tight chamber 11.
- the gas-tight chamber 11 contains a turntable 4 including a drive and thus forms the atomization chamber.
- a nozzle 2 is provided in the bottom of the tundish 1, the outlet opening of which has, for example, a diameter of 2 mm.
- a device 12 for setting the atmosphere in the gas-tight chamber 11 comprises at least one gas container 13 for inert gas, as well as corresponding control devices and lines.
- An oxygen measuring device 14 and a vacuum sensor 15 supply the necessary measurement data for the device 12 for setting the atmosphere.
- FIG. 2 mainly those parts of the system of a device according to the invention are shown which differ from the device in FIG. 1.
- the device according to the invention also has a turntable 4 which is arranged below a tundish 1 and where melt 9 can be poured onto the turntable through a nozzle 2 in the bottom of the tundish.
- the gas-tight chamber 11, which surrounds all of the system parts shown in FIG. 2, and the device 12 for setting the atmosphere in the gas-tight chamber 11 are not shown in FIG. 2.
- the nozzle 2 is not rigid, but comprises a nozzle section 3 which can be pivoted with respect to the rest of the nozzle 2 or with respect to the tundish 1, namely in such a way that it is vertically aligned at a pivot angle of 0 ° (zero position) , i.e. parallel to the flow direction of the melt 9, and then to be pivoted against the vertical by a maximum of about 80 °, see arrows, so that the melt 9 emerging from the nozzle section 3 strikes the turntable 4 radially further outward.
- the joint 7, which connects the nozzle section 3 to the rest of the nozzle 2, is here a ball joint. It is surrounded by at least one sleeve 8 in order to prevent the melt 9 from escaping.
- the tundish 1 is arranged to be movable normal to the axis of rotation of the turntable 4, see arrows, so that the position of the nozzle 2 relative to the turntable 4 can additionally or alternatively be set in this way.
- the tundish 1 can be suspended from a trolley, for example, which can be moved on a rail system, in particular a straight rail system.
- a gas nozzle 5 is also provided, which can be moved here independently of the tundish 1 normal to the axis of rotation of the turntable 4, see arrows.
- the gas nozzle 5 has a gas nozzle section 6 which can be pivoted with respect to the rest of the gas nozzle 5 by means of a joint 7, see arrows.
- the gas nozzle section 6 is vertically aligned at a pivot angle of 0 ° (zero point position), i.e. parallel to the direction of flow of the melt 9, and can then be pivoted against the vertical by a maximum of about 80 °, so that the gas flow then has a lateral component, i.e. a radial component with respect to the turntable 4, which meets the perpendicularly flowing melt 9, whereby the area in which the melt 9 meets the turntable 4 changes accordingly.
- Metal powder particles 10 then have a correspondingly different size and / or shape than if no gas stream were to hit the melt 9.
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50882/2019A AT523012B1 (de) | 2019-10-15 | 2019-10-15 | Verfahren und vorrichtung zur herstellung eines metallpulvers |
PCT/EP2020/075801 WO2021073823A1 (de) | 2019-10-15 | 2020-09-16 | Verfahren und vorrichtung zur herstellung eines metallpulvers |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4045213A1 true EP4045213A1 (de) | 2022-08-24 |
Family
ID=72801452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20788712.6A Pending EP4045213A1 (de) | 2019-10-15 | 2020-09-16 | Verfahren und vorrichtung zur herstellung eines metallpulvers |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4045213A1 (de) |
AT (1) | AT523012B1 (de) |
WO (1) | WO2021073823A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114289738B (zh) * | 2022-03-07 | 2022-05-24 | 四川工程职业技术学院 | 一种金属零件增材成型系统及方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4701289A (en) * | 1985-11-08 | 1987-10-20 | Dow Corning Corporation | Method and apparatus for the rapid solidification of molten material in particulate form |
JP2625310B2 (ja) * | 1991-01-08 | 1997-07-02 | シマテク,インコーポレイテッド | シリコンウェハーの製造方法および装置 |
JP2984456B2 (ja) * | 1991-03-27 | 1999-11-29 | 川崎製鉄株式会社 | 鋼の連続鋳造用タンディッシュ移動装置 |
CN105397100B (zh) * | 2014-08-25 | 2018-01-12 | 中国科学院宁波材料技术与工程研究所 | 一种微细金属粉末的制备方法及实现该方法的设备 |
CN104550988A (zh) * | 2015-01-28 | 2015-04-29 | 大连理工大学 | 一种基于均匀液滴喷射法的制备超细球形金属粉末的装置及方法 |
CN104588673B (zh) * | 2015-01-28 | 2018-03-13 | 大连理工大学 | 一种高效制备金属球形超细粉体的装置及方法 |
CN106735272A (zh) * | 2017-01-22 | 2017-05-31 | 广州纳联材料科技有限公司 | 金属粉末的气雾化制备方法 |
-
2019
- 2019-10-15 AT ATA50882/2019A patent/AT523012B1/de active
-
2020
- 2020-09-16 EP EP20788712.6A patent/EP4045213A1/de active Pending
- 2020-09-16 WO PCT/EP2020/075801 patent/WO2021073823A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
AT523012B1 (de) | 2022-07-15 |
AT523012A1 (de) | 2021-04-15 |
WO2021073823A1 (de) | 2021-04-22 |
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