CN205650810U - Spherical metal powder's preparation facilities - Google Patents
Spherical metal powder's preparation facilities Download PDFInfo
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- CN205650810U CN205650810U CN201620504514.5U CN201620504514U CN205650810U CN 205650810 U CN205650810 U CN 205650810U CN 201620504514 U CN201620504514 U CN 201620504514U CN 205650810 U CN205650810 U CN 205650810U
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Abstract
The utility model relates to a spherical metal powder's preparation facilities. A spherical metal powder's preparation facilities which characterized in that is including metal rod, atomizing tower, tower neck, heating device, conveyer and plasma device. The utility model provides a spherical metal powder's preparation facilities adopts heating methods to add the heat fusing to the metal raw and other materials earlier and forms the melt water, drips when locate the melt water that plasma heat energy adds the thermometal once more to the plasma device when the melt water, and the melt water surface tension reduction of messenger's metal is broken into little liquid drop more easily, and the spherical metal powder that prepares out does not almost have a satellite granule, and the oxygen content is lighter than 1200ppm, the following powder occupation rate of 53 mu m nearly 90%.
Description
Technical field
This utility model relates to field of material preparation, particularly relates to the preparation facilities of a kind of globular metallic powder.
Background technology
In recent years, owing to 3D printing technique can be directly produced complicated shape part, Aero-Space, health doctor
The fields such as treatment, automobile, art, building obtain broad development.Selective laser sintering and electron beam melting
3D printing technique require metal dust good sphericity, narrow particle size distribution (particle size distribution is between 15～53 μm),
The features such as oxygen content is low, good fluidity.And the domestic research relative progress for this type of metal dust is slow,
The producer of domestic this type of powder body of research and development is more but is the failure to mate completely metal 3D printing technique, and many producers will
Metal injection molded metal dust used is used on precinct laser or electron beam melting equipment, but the effect of printing
The most unsatisfactory；It is mainly manifested in that flow of powder performance is poor, granule-morphology irregular, oxygen content value is high asks
Topic.High-quality and print, with 3D, the production status of metal dust matched and limit 3D to a certain extent
The further development of printing technique.
At present, the technology producing globular metallic powder mainly has aerosolization method, centrifugal atomization, rotation electrode
Method and plasma spheroidization method etc..
Aerosolization technology refers to that the aluminium alloy of fusing is become the most small molten metal by swiftly flowing gas atomization
Dripping, these drops are cooled into spherical powder during dropping to atomisation tower.Gas atomization produces
Powder has hollow powder and in satellite distribution of particles, and mobility is slightly worse, and noble gas consumption is bigger
Centrifugal atomization refers to liquid metals or alloy by centrifugal force produced by the centrifugal pan of high speed rotating
It is ground into droplet, and then the method forming spherical powder.Existing centrifugal atomization apparatus is generally with High-speed Electric
Machine drives the mode of centrifugal pan high speed rotating to pulverize molten metal bath, and the rotating speed of centrifugal pan main shaft generally to reach
To more than 30000rpm, the most existing centrifugal atomization and device cannot be used for producing dystectic metal powder
End is such as titanium valve, cochrome powder.
Rotary electrode method is with metal or alloy as consutrode, and argon/helium is protective gas, and electrode end surface is subject to
Electric arc heated and melt as liquid, by the centrifugal force of electrode high speed rotating liquid dished out and pulverize as tiny
Drop, is followed by condensed into powder.The rotary speed of the current bar of rotary electrode method typically within 20000rpm,
Higher metal drop aerosol dispersion centrifugal force cannot be provided, so the spherical powder prepared by this technology is the biggest
Partial particulate granularity all between 100～250 μm, less than 53 μm powder almost without.
Plasma spheroidization method utilizes high-temperature hot that plasma torch produces by quick for metal dust in irregular shape
It is melt into drop, subsequently chilling, " freezing " globulate metal dust.Plasma spheroidization processes the powder of preparation
Rely on Particle Sizes, because of fine powder reunion powder feeding difficulty, it is difficult to batch production.
Therefore prior art is badly in need of a kind of particle diameter of can preparing of exploitation less than 53 μm and the ball without satellite granule
The preparation facilities of shape metal dust.
Utility model content
Based on this, this utility model provides one can prepare particle diameter less than 53 μm and without satellite granule
The preparation facilities of globular metallic powder.
Concrete technical scheme is as follows:
The preparation facilities of a kind of globular metallic powder, it is characterised in that including:
Metal bar, one end of described metal bar is taper；
Atomisation tower, described atomisation tower has the atomization chamber for atomization metal bar, the two ends of described atomization chamber
It is respectively equipped with feed end and discharge end；
Tower neck, described tower neck is located at the feed end of described atomisation tower；
Heater, described heater is arranged at the neck intracavity of described tower neck, is used for heating described metal bar
Material forms fused solution；
Transporter, described transporter is located on described tower neck, for transferring metal bar, makes described gold
The tapering point belonging to bar arrives in described heater；And,
Plasma apparatus, described plasma apparatus can send plasma torch, is used for crushing described fused solution,
The top of described plasma torch is apart from the tapering point 50-80mm of described metal bar.
Wherein in an embodiment, described plasma apparatus is multiple plasmatorch, and multiple described etc. from
The described plasma torch that sub-torch sends gathers in a focus, and described plasma apparatus revolves relative to described focus
Turning and be symmetrical arranged, described focus is positioned on the extended line of described metal bar axis.
Wherein in an embodiment, the quantity of described plasmatorch is 3.
Wherein in an embodiment, the folder of the axis of the axis of described plasma torch and described metal bar
Angle is 37 °-46 °.
Wherein in an embodiment, described heater is induction coil.
Wherein in an embodiment, also include inert gas protection device, described inert gas protection device
Including inertia source of the gas gentle body defecator, described inertia source of the gas is connected to described tower neck by pipeline, described
Gas-filtering device is connected to described atomization chamber for noble gas is recovered by filtration, and the noble gas after filtration leads to
Cross airway and be connected to described tower neck to realize the recovery of noble gas.
Wherein in an embodiment, also include material-gathering device, described material-gathering device by valve with described go out
The material detachable connection of end, described material-gathering device includes collecting powder cylinder and pulley mechanism.
Wherein in an embodiment, the cross-sectional diameter of described metal bar is 145-155mm, tapering point
Cone angle be 115-125 °.
Principle of the present utility model and advantage are as follows:
The preparation facilities of the globular metallic powder of the application uses induction heating mode to heat metal bar
Fusing, decreases vessels crucible and pollutes metal material composition, improve powder degree of purity.Metal bar
One end is taper, and cone angle is 115-125 °, after metal bar adds heat fusing by induction coil, formation
Fused solution drips downwards along the conical surface of taper, when molten melt drop drops to the flame focal point of plasma apparatus
Time, plasma heat energy adds the fused solution of thermometal again, makes the fused solution surface tension of metal reduce, more
Easily being fractured into droplet, plasma spray goes out the impulsive force produced and has fully crushed the fused solution of metal bar.
The end points of the tapering point of setting metal bar and the distance of the focus of plasma torch are at 50-80mm especially, its
Purpose is to make metal bar tip avoid being melted by plasma apparatus scaling loss and cannot forming thin stock metal liquid stream,
When causing plasma apparatus to dispel liquid stream, do not reach refinement powder effect；Meanwhile, according to the material of metal bar
Matter, the viscosity of molten metal is different with mobility, draws the optimal distance of material and plasma apparatus.
Noble gas can protect the most contaminated and oxidation during whole of metal bar and globular metallic powder, and
Filter out dust Posterior circle by gas-filtering device to reuse, reduce the consumption of noble gas.
The globular metallic powder using the device of the application to prepare is less than almost without satellite granule, oxygen content
1200ppm, calculated in weight percent, 53 μm following powder occupation rate reaches 90%, and sphericity is high, granularity
Narrowly distributing, impurity content are low, the distribution of high purity, good fluidity, particle diameter meets 3D and prints requirement, and work
Skill is simple, technically reliable, product granularity are easily controllable, production efficiency is high, noble gas consumption is few, is suitable for
Produce in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the preparation facilities of the globular metallic powder of an embodiment；
Fig. 2 is the schematic diagram of the plasma apparatus of an embodiment；
Fig. 3 is the granule-morphology figure of the globular metallic powder that embodiment 1 prepares；
Fig. 4 is the granule-morphology figure of the globular metallic powder that embodiment 2 prepares；
Fig. 5 is the granule-morphology figure of the globular metallic powder that embodiment 3 prepares；
Fig. 6 is the granule-morphology figure of the globular metallic powder that embodiment 4 prepares.
Detailed description of the invention
Understandable for enabling the purpose of this utility model, feature and advantage to become apparent from, the most right
Detailed description of the invention of the present utility model is described in detail.Elaborate a lot of concrete thin in the following description
Joint is so that fully understanding this utility model, but this utility model can be described here to be much different from
Other modes are implemented, and those skilled in the art can do class in the case of this utility model intension
Like improving, therefore this utility model is not limited by following public being embodied as.
As it is shown in figure 1, the preparation facilities of the globular metallic powder of an embodiment, including metal bar 110,
Atomisation tower 120, tower neck 130, heater 140, transporter 150 and plasma apparatus 160.
Metal bar 110, one end is taper；Atomisation tower 120, has the mist for atomization metal bar 110
Change chamber, atomization chamber be respectively arranged at two ends with feed end and discharge end；Tower neck 130, is located at entering of atomisation tower 120
Material end；Heater 140, is arranged at the neck intracavity of tower neck 130, is formed molten for heating metal bar 110
Melt liquid；Transporter 150, is located on tower neck 130, for transferring metal bar 110 so that it is tapering point arrives
Reach in heater 140；And plasma apparatus 160, plasma torch can be sent, be used for crushing fused solution,
The tapering point 50-80mm of the top distance metal bar 110 of plasma torch, its objective is to make metal bar
The tip of 110 avoids to be formed thin stock metal liquid stream by the fusing of plasma apparatus 160 scaling loss, cause etc. from
When sub-device 160 dispels liquid stream, do not reach refinement powder effect；Meanwhile, according to the material of metal bar 110
Matter, the viscosity of molten metal is different with mobility, draws the flame top of material and plasma apparatus 160
The optimal distance of end.
Plasma apparatus 160 is multiple plasmatorch, and the plasma torch that sends of multiple plasmatorch gather in
One focus, plasma apparatus 160 is relative to the rotationally symmetrical setting of this focus, and this focus is positioned at metal bar
On the extended line of material 110 axis, the axis of plasma torch with the included angle A of the axis of metal bar 110 is
37°-46°.Preferably, as in figure 2 it is shown, the quantity of the plasmatorch of plasma apparatus 160 is 3,
The plasma torch sent gathers in a focus, and angle each other is 120 °.
Preferably, heater 140 is made up of induction coil, and can arrange between plasma apparatus 160
One fixing demarcation strip 142, the fixing heater 140 of auxiliary.
Preferably, this preparation facilities also includes inert gas protection device 170, by inertia source of the gas 171 and gas
Defecator 172 forms, and inertia source of the gas 171 is connected to tower neck 130, gas-filtering device 172 by pipeline
Being connected to the atomization chamber of atomisation tower 120 for noble gas is recovered by filtration, the noble gas after filtration is by leading
Trachea 173 is connected to tower neck 130 to realize the recovery of noble gas.It is additionally provided with on gas-filtering device 172
Air vent 174.
Preferably, this preparation facilities also includes material-gathering device 180, by collection powder cylinder 181 and pulley mechanism 182 groups
Become, be connected by valve 183 is detachable with the discharge end of atomisation tower 120.Valve 183 is provided with handle
184, for controlling the folding of valve 183.
Said apparatus is used to prepare globular metallic powder, after the oxide skin car on metal bar surface being gone with lathe,
Metal bar is put into transporter 150, according to induction information downward transferring metal bar 110, makes metal bar
The tapering point of material 110 is positioned at heater 140, and the plasma torch top of distance plasma apparatus 160
End 50～80mm, metal bar 110 is heated by heater 140 so that it is surface is melted, at gravity
Under effect, fall to forming fused solution along metal bar 110 tapering point.Use induction heating mode that bar is entered
Row adds heat fusing, decreases vessels crucible and pollutes metal material composition, improves powder degree of purity.When molten
Melt when drop drops down onto the flame focal point of plasma apparatus 160 and be then fractured into droplet, due to plasma
Heat energy adds the fused solution of thermometal again, makes the fused solution surface tension of metal reduce, it is easier to be fractured into
Droplet, plasma spray goes out the impulsive force produced and has fully crushed the fused solution of metal bar 110.Droplet
During declining in the atomization chamber of atomisation tower 120, cooled and solidified forms globular metallic powder, by controlling
Valve 183 opened by handle 184, and globular metallic powder is fallen in collection powder cylinder 181, after closing valve 183, logical
Cross pulley mechanism 182 can be moved away by collection powder cylinder 181 easily.The globular metallic powder collected is carried out
Screening, conjunction batch, reach to improve powder size powder effect, finally carry out packing processes.Oxygen content is less than 0.01%
Nitrogen, argon, the noble gas such as helium can be full of this preparation facilities, protection gold by inertia source of the gas 171
Belong to the most contaminated and oxidation during whole of bar 110 and globular metallic powder, when device internal gas pressure is more than
During 300Pa, excessive gas can be discharged from air vent 174.And noble gas is by gas-filtering device 172 mistake
Can circulate in airway 173 returns to device after filtering dust and reuse, reduce disappearing of noble gas
Consumption.
Use the spherical gold that the method and apparatus of the atomized producing ball-shaped metal dust of this programme plasma is prepared
Belonging to powder almost without satellite granule, oxygen content is less than 1200ppm, calculated in weight percent, 53 μm with
Lower powder occupation rate reaches 90%, sphericity height, narrow particle size distribution, impurity content are low, high purity, flowing
Property the distribution of good, particle diameter meet 3D and print requirement, and technique is simple, technically reliable, product granularity are easily controllable,
Production efficiency is high, noble gas consumption is few, is suitable for producing in enormous quantities.
Embodiment 1
The present embodiment is the preparation process of a kind of globular metallic powder 3D printing technical pure titanium valve, concrete operations
For: after special pure titanium rod lathe is carried out the removal of surface impurity and oxide, put into transporter 150
In, open inertia source of the gas 171, be filled with noble gas.Opening heater 140 heating makes pure titanium rod melt shape
Become fused solution, the axis of the plasma torch that regulation plasma apparatus 160 sends and the axle of metal bar 110
The angle of line is 44 °, and the plasma torch top of plasma apparatus 160 with bar tapering point distance is
54mm, fused solution falls to be fractured into droplet at the plasma torch of plasma apparatus 160.Keep mist
In change tower 120, argon gas pressure is 300Pa, and the droplet after plasma is broken is in the environment of argon
Cooled and solidified, collects after being cooled to room temperature and takes out.Sieve with ultrasonic activation again, be passed through high-purity
Argon shield, vibration frequency controls at 50～90 times/s, and time of vibration is 1～2h, according to grading, obtains
Must be less than the titanium valve of 53 μm, the granule-morphology of the titanium valve product produced is spherical in shape or class is spherical, wherein quality
The powder size of mark 90% is less than 53 μm, and the main chemical elements content of detection gained titanium valve is as follows:
| Composition | Ti | O | H | N | C | Fe |
| Content | Bal. | 1200ppm | 100ppm | 100ppm | 100ppm | 450ppm |
The granule-morphology of the globular metallic powder that the present embodiment prepares is as shown in Figure 3.
Embodiment 2
The present embodiment is the preparation process of a kind of globular metallic powder 3D printing TC4 Titanium Powder, specifically
Operation is: after special Ti6Al4V rod lathe carries out the removal of surface impurity and oxide, put into transmission
In device 150, open inertia source of the gas 171, be filled with noble gas.Open heater 140 heating and make Ti6Al4V
Rod fusing forms fused solution, the axis of the plasma torch that regulation plasma apparatus 160 sends and metal bar
The angle of the axis of 110 is 46 °, the plasma torch top of plasma apparatus 160 and bar tapering point away from
From for 50mm, fused solution falls to be fractured into droplet at the plasma torch of plasma apparatus 160.Protect
Holding argon gas pressure in atomisation tower 120 is 300Pa, and the droplet after plasma is broken is at the ring of argon
Cooled and solidified in border, collects after being cooled to room temperature and takes out.Sieve with ultrasonic activation again, be passed through
High-purity argon gas is protected, and vibration frequency controls at 50～90 times/s, and time of vibration is 1～2h, according to grading,
Obtaining less than the Titanium Powder of 53 μm, the granule-morphology of the Titanium Powder product produced is spherical in shape or class ball
Shape, wherein the powder size of mass fraction 90% is less than 53 μm, the primary chemical unit of detection gained Titanium Powder
Cellulose content is as follows:
| Composition | Ti | Al | V | O | H | N | C | Fe |
| Content | Bal. | 6.05% | 4.02% | 1100ppm | 50ppm | 100ppm | 100ppm | 450ppm |
The granule-morphology of the globular metallic powder that the present embodiment prepares is as shown in Figure 4.
Embodiment 3
The present embodiment is the preparation process of a kind of globular metallic powder 3D printing cobalt-chromium-tungsten alloy powder, specifically grasps
As: after special cobalt-chromium-tungsten alloy rod lathe is carried out the removal of surface impurity and oxide, put into transmission
In device 150, open inertia source of the gas 171, be filled with noble gas.Open heater 140 heating and make cobalt chromium
The fusing of tungsten alloy rod forms fused solution, the axis of the plasma torch that regulation plasma apparatus 160 sends and gold
The angle of the axis belonging to bar 110 is 40 °, the plasma torch top of plasma apparatus 160 and bar cone
Shape end distance is 62mm, and fused solution falls to be fractured at the plasma torch of plasma apparatus 160 little liquid
Drip.In holding atomisation tower 120, nitrogen gas pressure is 300Pa, and the droplet after plasma is broken is at nitrogen
Cooled and solidified in the environment of gas, collects after being cooled to room temperature and takes out.Sieve with ultrasonic activation again,
Being passed through high pure nitrogen protection, vibration frequency controls at 50～90 times/s, and time of vibration is 1～2h, according to granularity
Classification, it is thus achieved that less than the cobalt chrome molybdenum tungsten powder of 53 μm, the granule-morphology of the cobalt chrome molybdenum tungsten powder product produced is ball
Shape or class are spherical, and wherein the powder size of mass fraction 90% is less than 53 μm, detection gained cobalt chrome molybdenum tungsten powder
Main chemical elements content is as follows:
| Composition | Co | Cr | Mo | W | Si | C | O |
| Content | Bal. | 25.89% | 5.68% | 5.74% | ≤ 1.0% | ≤ 0.03% | ≤500ppm |
The granule-morphology of the globular metallic powder that the present embodiment prepares is as shown in Figure 5.
Embodiment 4
The present embodiment is the preparation process of a kind of globular metallic powder 3D printing 316L stainless steel powder, specifically
Operation is: after special 316L stainless steel bar lathe carries out the removal of surface impurity and oxide, put into biography
Send in device 150, open inertia source of the gas 171, be filled with noble gas.Open heater 140 heating to make
The fusing of 316L stainless steel bar forms fused solution, the axis of the plasma torch that regulation plasma apparatus 160 sends
It is 40 ° with the angle of the axis of metal bar 110, the plasma torch top of plasma apparatus 160 and rod
Material tapering point distance is 66mm, and fused solution falls to be fractured at the plasma torch of plasma apparatus 160
Droplet.In holding atomisation tower 120, nitrogen gas pressure is 300Pa, the droplet after plasma is broken
Cooled and solidified in the environment of nitrogen, collects after being cooled to room temperature and takes out.Carry out with ultrasonic activation sieve again
Screening, is passed through high pure nitrogen protection, and vibration frequency controls at 50～90 times/s, and time of vibration is 1～2h, presses
According to grading, it is thus achieved that less than the 316L stainless steel powder of 53 μm, the 316L stainless steel powder product produced
Granule-morphology spherical in shape or class is spherical, wherein the powder size of mass fraction 90% is less than 53 μm, detects institute
The main chemical elements content obtaining 316L stainless steel powder is as follows:
The granule-morphology of the globular metallic powder that the present embodiment prepares is as shown in Figure 6.
Embodiment 5
The present embodiment is the preparation process of a kind of globular metallic powder 3D printing Al10SiMg alloyed powder, tool
Gymnastics as: after special Al10SiMg alloy bar lathe is carried out the removal of surface impurity and oxide, put
Enter in transporter 150, open inertia source of the gas 171, be filled with noble gas.Open heater 140 to heat
The fusing of Al10SiMg alloy bar is made to form fused solution, the plasma torch that regulation plasma apparatus 160 sends
Axis is 37 ° with the angle of the axis of metal bar 110, the plasma torch top of plasma apparatus 160
Being 80mm with bar tapering point distance, fused solution falls to be broken at the plasma torch of plasma apparatus 160
It is broken into droplet.Keeping nitrogen gas pressure in atomisation tower 120 is 300Pa, little after plasma is broken
Drop is cooled and solidified in the environment of nitrogen, collects and take out after being cooled to room temperature.Sieve with ultrasonic activation again
Sieving, be passed through high pure nitrogen protection, vibration frequency controls at 50～90 times/s, and time of vibration is 1～2h,
According to grading, it is thus achieved that less than the Al10SiMg alloyed powder of 53 μm, the Al10SiMg alloy produced
The granule-morphology of powder product is spherical in shape or class is spherical, and wherein the powder size of mass fraction 90% is less than 53 μm,
The main chemical elements content of detection gained Al10SiMg alloyed powder is as follows:
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do
Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (8)
1. the preparation facilities of a globular metallic powder, it is characterised in that including:
Metal bar, one end of described metal bar is taper；
Atomisation tower, described atomisation tower has the atomization chamber for atomization metal bar, the two ends of described atomization chamber
It is respectively equipped with feed end and discharge end；
Tower neck, described tower neck is located at the feed end of described atomisation tower；
Heater, described heater is arranged at the neck intracavity of described tower neck, is used for heating described metal bar
Material forms fused solution；
Transporter, described tower neck is additionally provided with transporter, and described transporter is used for transferring metal bar,
The tapering point making described metal bar arrives in described heater；And,
Plasma apparatus, described plasma apparatus can send plasma torch, is used for crushing described fused solution,
The top of described plasma torch is apart from the tapering point 50-80mm of described metal bar.
Preparation facilities the most according to claim 1, it is characterised in that described plasma apparatus is multiple
Plasmatorch, and the described plasma torch that multiple described plasmatorch sends gathers in a focus, described etc.
Ion unit is positioned at prolonging of described metal bar axis relative to the rotationally symmetrical setting of described focus, described focus
On long line.
Preparation facilities the most according to claim 2, it is characterised in that the quantity of described plasmatorch is
3.
Preparation facilities the most according to claim 1, it is characterised in that the axis of described plasma torch
It it is 37 °-46 ° with the angle of the axis of described metal bar.
Preparation facilities the most according to claim 1, it is characterised in that described heater is the line of induction
Circle.
Preparation facilities the most according to claim 1, it is characterised in that also include that inert gas shielding fills
Putting, described inert gas protection device includes inertia source of the gas gentle body defecator, and described inertia source of the gas passes through
Pipeline is connected to described tower neck, and described gas-filtering device is connected to described atomization chamber for inertia is recovered by filtration
Gas, the noble gas after filtration is connected to described tower neck to realize the recovery of noble gas by airway.
Preparation facilities the most according to claim 1, it is characterised in that also include material-gathering device, described
Material-gathering device is connected by valve is detachable with described discharge end, and described material-gathering device includes collecting powder cylinder and cunning
Wheel mechanism.
8. according to the preparation facilities described in any one of claim 1-7, it is characterised in that described metal bar
Cross-sectional diameter be 145-155mm, the cone angle of tapering point is 115-125 °.
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| CN105855560A (en) * | 2016-05-27 | 2016-08-17 | 广州纳联材料科技有限公司 | Spherical metal powder and preparation method thereof |
| CN106622041A (en) * | 2017-02-23 | 2017-05-10 | 湖南久泰冶金科技有限公司 | Chemical combination tower chamber for preparing powder by metal atomization |
| CN106914626A (en) * | 2017-04-10 | 2017-07-04 | 西安铂力特激光成形技术有限公司 | The preparation facilities and preparation method of a kind of submicron metal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105855560A (en) * | 2016-05-27 | 2016-08-17 | 广州纳联材料科技有限公司 | Spherical metal powder and preparation method thereof |
| CN106622041A (en) * | 2017-02-23 | 2017-05-10 | 湖南久泰冶金科技有限公司 | Chemical combination tower chamber for preparing powder by metal atomization |
| CN106914626A (en) * | 2017-04-10 | 2017-07-04 | 西安铂力特激光成形技术有限公司 | The preparation facilities and preparation method of a kind of submicron metal |
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| CN107020386A (en) * | 2017-05-15 | 2017-08-08 | 中国航天空气动力技术研究院 | A kind of air intake assembly of nodularization powder high-frequency induction plasma heater |
| CN107225251A (en) * | 2017-07-25 | 2017-10-03 | 天津中能锂业有限公司 | A kind of passivation of lithium microsphere production device |
| CN110076347A (en) * | 2019-06-06 | 2019-08-02 | 南京工业大学 | The Combined type powder preparation method and device being atomized based on plasma melting and disc rotary |
| CN114959203A (en) * | 2022-05-20 | 2022-08-30 | 浙江晋椿精密工业股份有限公司 | Spheroidizing furnace capable of recycling heat |
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