CN107931620A - A kind of method for sieving of metal dust - Google Patents
A kind of method for sieving of metal dust Download PDFInfo
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- CN107931620A CN107931620A CN201711183002.9A CN201711183002A CN107931620A CN 107931620 A CN107931620 A CN 107931620A CN 201711183002 A CN201711183002 A CN 201711183002A CN 107931620 A CN107931620 A CN 107931620A
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- metal dust
- powder
- sieving
- metal
- screening
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- 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
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
Abstract
The present invention relates to a kind of method for sieving of metal dust, and in particular to a kind of method for sieving of metal dust suitable for used in increasing material manufacturing, belongs to increases material manufacturing technology field.The technical problem to be solved by the present invention is to provide a kind of method for sieving of metal dust, this method sieves metal dust using ultrasonic wave high frequency shale shaker, and using two level screening mode, sieved in atmosphere of inert gases, the charging rate for controlling the metal dust on every square metre of sieve is 2.66~6kg/min, ultrasonic vibration frequency is 33~37kHz, and vibration deviation angle is 5~15 °；After screening, the metal dust on fine screen mesh meets the Particle size requirements of metal target powder.The method for sieving of the present invention, carries out in ultrasonic wave high frequency shale shaker, can sieve less than 250 μm of metal dust, and screening efficiency is high, is not easy to plug sieve in screening process, is not likely to produce dust cloud, is sieved suitable for industrial mass.
Description
Technical field
The present invention relates to a kind of method for sieving of metal dust, and in particular to a kind of metal suitable for used in increasing material manufacturing
The method for sieving of powder, belongs to increases material manufacturing technology field.
Background technology
Metal increasing material manufacturing is the emerging technology that manufacture field is developing rapidly, is known as " having industry leather
The manufacturing technology for justice of determining a topic ".The technology is growing and progressively ripe, has been widely used for aerospace, biology doctor at present
The industries such as treatment, military project, metallurgy, building, automobile, electronics, jewelry, mould.Metal dust used in increasing material manufacturing is important as its
Raw material, the development to the technology plays a crucial role.Metal dust used in increasing material manufacturing needs to meet following
It is required that：Powder diameter is tiny, particle diameter distribution is relatively narrow, satellite ball is few, sphericity is high, good fluidity, apparent density height etc..At present,
The metal dust particle diameter distribution of the powder-making technique production of mainstream is wider, it is impossible to is directly used in increasing material manufacturing, thus needs to production
The powder gone out is sieved, and therefore, powder sieving technique plays the influence of key to obtaining high performance metal dust.Pass
The screening plant and technique of system are mainly for common metal powder.Metal dust used in increasing material manufacturing, since particle diameter distribution is narrow,
Powder diameter is tiny, easily produces dust cloud when sieving excessive velocities, causes environmental hazard；Screening speed easily blocks when excessively slow
Sieve, and yield is relatively low, is not suitable for industrial mass screening.Therefore, this area scientific research personnel is to increasing material manufacturing metal powder
The method for sieving at end has done numerous studies.
Patent 201710574339.6 discloses a kind of screening plant and titanium alloy powder screening system, is being sieved
When, material is introduced into upper screen main body and completes to sieve for the first time, and undersize material is entered by the first opening of guide part to be oriented to
Passage, and fall on guiding wall, material is slided along guiding wall, and is fallen in next stage sieve unit and continued from the second opening
Screening.The method for sieving is mainly fallen into next stage sieve by guide channel concentrate material, improves screening effect, together
When be not easy to plug sieve main body, it is seen then that the method for sieving uses traditional screening plant, and screening effect is depended on to equipment
Improvement, the improved cost of its equipment is higher.
Patent 201710270532.0 discloses a kind of online metal dust screening machine suitable for 3D printing and screening
Method, this method are directly sieved after metal dust preparation, and the gold to be sieved that will be entered using disk is dissipated from feed inlet
Belonging to powder, uniformly paving is scattered on compass screen surface, to reduce the agglomeration of powder, improves metal dust screening efficiency.As it can be seen that this method
Sieved using ultrasonic wave dither screening plant, in order to obtain preferable screening effect, it is necessary to be carried out to screening plant
Improve, added in screening plant and dissipate disk, and the screening effect of this method can not be realized in normal ultrasound waves screening plant.
As it can be seen that this method also depends on the improvement to equipment.
To sum up, existing method for sieving, will realize that industrial mass is sieved, be both needed to be improved screening plant, with
Improve screening effect.
The content of the invention
For disadvantages described above, the technical problem to be solved by the present invention is to provide a kind of method for sieving of metal dust, this method
Without being improved to equipment, only technique is adjusted in itself, you can realize that industrial mass is sieved.
The method for sieving of metal dust of the present invention, sieves metal dust using ultrasonic wave high frequency shale shaker, and adopts
Mode is sieved with two level, is specifically comprised the following steps：
A, sieve is selected：According to the particle diameter of metal target powder, corresponding wide-meshed screen and fine screen mesh are selected；
B, sieve：Sieved in atmosphere of inert gases, control the charging speed of the metal dust on every square metre of sieve
It is 33~37kHz to spend for 2.66~6kg/min, ultrasonic vibration frequency, and vibration deviation angle is 5~15 °；After screening, fine screen mesh
On metal dust meet the Particle size requirements of metal target powder.
Preferably, in b step, screen area is 0.2~0.3m2, the charging rate of metal dust is 0.8~1.2kg/
min。
Preferably, in the atmosphere of inert gases described in b step, oxygen content is no more than 0.8vol%.
It is further preferred that in b step, inert gas is argon gas, helium, neon, Krypton or xenon.
Preferably, in b step, sieving time is 30~60min.
Preferably, step c is carried out after b step, the step c is：In atmosphere of inert gases, by fine screen mesh
Metal dust, which is transferred in meal mixer, carries out mixed powder, and the rotary speed for controlling meal mixer is 80~100r/min, and it is 30 to mix the powder time
~40min.
It is further preferred that the particle diameter of metal dust to be sieved is less than 250 μm.
It is further preferred that the particle diameter of metal target powder is 15~45 μm, 15~53 μm, 20~63 μm or 45~106 μ
m。
Preferably, inert gas is filled with into screening system and obtains atmosphere of inert gases, wherein, the speed of inflation for 9~
10L/min, inflationtime are 3~5min；Purity inert gas is higher than 99.99vol%.
Metal dust of the present invention is preferably at least one of elemental metals powder or metal alloy powder, elemental metals powder
Or the metal species in metal alloy powder are titanium, cobalt, chromium, iron, vanadium, tungsten, molybdenum, tantalum, aluminium or nickel；More preferably described metal dust is
Titanium valve or Titanium Powder.
Compared with prior art, the present invention has the advantages that：
1) method for sieving of the invention, can carry out in normal ultrasound waves high frequency shale shaker, special without being carried out to equipment
Different to improve, equipment cost is low.This method only adjusts technique in itself, you can realizes that industrial mass is sieved.
2) less than 250 μm of metal dust can be sieved using the method for the present invention, screening efficiency is high, is not easy in screening process
Sieve is blocked, is not likely to produce dust cloud, is sieved suitable for industrial mass.
3) it is whole in screening process to use inert gas shielding, powder pollution is avoided, ensure that powder properties.
4) method of the invention can integrate screening blending processes of powders, it is ensured that the batch uniformity of metal dust.
Embodiment
The method for sieving of metal dust of the present invention, sieves metal dust using ultrasonic wave high frequency shale shaker, and adopts
Mode is sieved with two level, is specifically comprised the following steps：
A, sieve is selected：According to the particle diameter of metal target powder, corresponding wide-meshed screen and fine screen mesh are selected；
B, sieve：Sieved in atmosphere of inert gases, control the charging speed of the metal dust on every square metre of sieve
It is 33~37kHz to spend for 2.66~6kg/min, ultrasonic vibration frequency, and vibration deviation angle is 5~15 °；After screening, fine screen mesh
On metal dust meet the Particle size requirements of metal target powder.
In a steps, for the metal target powder to need the metal dust by sieving obtained particle size range, target is golden
The particle size range for belonging to powder is determined by final demand.And the aperture of corresponding wide-meshed screen and fine screen mesh then with metal target powder
Particle size range it is related, scalping screen distance is the maximum of metal target powder diameter, and dusting cover screen distance is metal target powder
The minimum value of last particle diameter.Such as, it is desirable to screening obtains 15~45 μm of metal dust, i.e., the particle diameter of metal target powder be 15~
45 μm, corresponding dusting cover screen distance is 15 μm, and scalping screen distance is 45 μm.The particle diameter of metal target powder is 15~53 μm, right
The fine screen mesh answered is 15 μm, and wide-meshed screen is 53 μm.The particle diameter of metal target powder is 20~63 μm, and corresponding fine screen mesh is 20 μ
M, wide-meshed screen are 63 μm.The particle diameter of metal target powder is 45~106 μm, and corresponding fine screen mesh is 45 μm, and wide-meshed screen is 106 μ
m.And so on.
The two level screening mode of the present invention is to be sieved using wide-meshed screen and fine screen mesh.Metal dust first passes through wide-meshed screen
Sieved, the powder under sieving falls directly on and sieved on fine screen mesh, and the vibration frequency of wide-meshed screen and fine screen mesh and vibration are inclined
Digression degree is identical.After the completion of screening, the powder on fine screen mesh is collected into powder tank, is the powder of particle size range needed for collection, i.e.,
Metal target powder；It is the less fine powder of collection cut size and the powder under fine screen mesh collects fine powder tank；Powder on wide-meshed screen
Coarse powder tank can be collected into, is the larger coarse powder of collection cut size.
In b step, charging rate is related to screen area, and screen area is bigger, and charging rate can be faster, otherwise also
So, however, it is desirable to which it is 2.66~6kg/min to control the metal dust charging rate on every square metre of sieve.For example, screen area
For 1m2, metal dust charging rate is 2.66~6kg/min；Screen area is 0.5m2, the charging rate of metal dust is 1.33
~3kg/min.Screen area of the present invention is the area of single sieve.
Preferably, screen area is 0.2~0.3m2, the charging rate of metal dust is 0.8~1.2kg/min.
Since metal dust is easily by the dioxygen oxidation in air, screening is needed in atmosphere of inert gases, b steps
In the rapid atmosphere of inert gases, preferably oxygen content is no more than 0.8vol%, and " 0.8vol% " herein is percentage by volume
0.8%.
Preferably, the inert gas is argon gas, helium, neon, Krypton or xenon.
The present invention is sieved using ultrasonic wave high frequency shale shaker, it is necessary to strictly control charging rate and ultrasonic vibration frequency
And vibration deviation angle.Inventor, which studies, to be found, if charging rate is too fast, vibration frequency is excessive, powder separation is uneven,
Easily accumulation, and dust cloud is produced, and vibration frequency is excessive very big to screening media.Charging rate is excessively slow, vibration frequency is too low
If, screening speed is too slow, and economy is bad, is not suitable for industrialized production.Using specific charging rate, ultrasonic vibration frequency
Rate and vibration deviation angle, just can guarantee that non clogging screen hole, improve screening precision and screening efficiency, reduce the production of dust cloud
It is raw.
Preferably, in b step, sieving time is 30~60min.
Further, in order to ensure powder after screening particle diameter distribution is uniform, apparent density is consistent, preferably b step it
After carry out step c, the step c is mixed powder：In atmosphere of inert gases, the metal dust on fine screen mesh is transferred in meal mixer
Mixed powder is carried out, the rotary speed for controlling meal mixer is 80~100r/min, and it is 30~40min to mix the powder time.
Preferably, the particle diameter of metal dust to be sieved is less than 250 μm.Metal dust can use existing preparation side
Method is prepared, and can also use commercially available metal dust.
Preferably, the particle diameter of metal target powder is 15~45 μm, 15~53 μm, 20~63 μm or 45~106 μm.
Preferably, the atmosphere of inert gases obtains with the following method：Inert gas is filled with into screening system, is inflated
Speed be 9~10L/min, that is, correspond to pressure reducing valve outlet air pressure be 0.5~0.6MPa.Inflationtime is 3~5min.After inflation
Oxygen content is monitored, is then met the requirements when oxygen content is less than 0.8%.The screening system, that is, ultrasonic wave dither screen system.
Preferably, the purity of inert gas is higher than 99.99vol%.
The method for sieving of metal dust of the present invention, can be adapted for various metal dusts, it is preferred that metal dust include but
It is not limited to titanium, cobalt, chromium, iron, vanadium, tungsten, molybdenum, tantalum, aluminium, nickel etc., and the alloyed powder of these metals.More preferably described metal dust
For titanium valve or Titanium Powder.
Specifically, the method for sieving of the present invention preferably uses following steps：
(1) 0~250 μm of metal dust raw material is prepared using atomization.
(2) using two level screening mode, according to the particle size range to be sieved, suitable sieve is selected.
(3) high-purity inert protective gas is filled with into screening system, purity inert gas is higher than 99.99%.The speed of inflation
Spend for 9~10L/min, that is, it is 0.5~0.6MPa to correspond to pressure reducing valve outlet air pressure.Inflationtime is 3~5min.Monitoring oxygen contains
Amount, when oxygen content is less than 0.8vol%, stops inflation.
(4) dress powder bucket is docked with screening plant feed bin butterfly valve, is pinned with sealing ring, opened feed bin entrance butterfly valve and open
Close, allow powder uniform flow to enter feed bin.The Weight control once fed is in 5~10kg.
(5) screen area is 0.2~0.3m2, it is 0.8~1.2kg/min to control charging rate, that is, it is pneumatic to correspond to batcher
Pressure is controlled in 0.2~0.4MPa.
(6) sieved using ultrasonic dither sieving technology, ultrasonic vibration frequency is 33~37kHz, and vibration deviates
Angle is 5~15 °.
(7) after sieving 30~60min, screening plant is closed.Rewinding tank butterfly valve is closed, by rewinding tank and screening plant point
From.
(8) inert protective gas, 10~20min of inflationtime are filled with to meal mixer.To receive powder tank material mouth and meal mixer into
Material mouth is docked, and is pinned with sealing ring, opens meal mixer feed inlet butterfly valve, is then opened and is received powder tank butterfly valve so that powder uniform flow
Enter in meal mixer.Meal mixer rotary speed is 80~100r/min, and it is 30~40min to mix the powder time.
(9) after mixing powder, meal mixer, the metal dust after being sieved are closed.
The embodiment of the present invention is further described with reference to embodiment, is not therefore limited the present invention
System is among the embodiment described scope.The screening plant used in embodiment is conventional equipment.
Embodiment 1 sieves 15~45 μm of Titanium Powder
(1) 0~250 μm of metal dust raw material is prepared using atomization.
(2) fine screen mesh is with 15 μm, and for wide-meshed screen with 45 μm, screen area is 0.2m2。
(3) high-purity Ar is filled with into screening system, the speed of inflation is 9L/min, that is, corresponds to pressure reducing valve outlet air pressure and be
0.5MPa.Oxygen content is monitored, when oxygen content is less than 0.8vol%, stops inflation.
(4) charging switch is opened, allows powder uniform flow to enter feed bin.The Weight control once fed is for 10kg.
(5) it is 0.8kg/min to control charging rate, that is, corresponds to the pneumatic pressure control of batcher in 0.2MPa.
(6) sieved using dither sieving technology, vibration frequency 35kHz, vibration deviation angle is 10 °.
(7) 60min is sieved, screening terminates, and closes screening plant.
(8) inert protective gas, inflationtime 15min are filled with to meal mixer.The powder for receiving powder tank is taken directly to pour into mixed powder
Device carries out powder mixing.Meal mixer rotary speed is 80r/min, and it is 35min to mix the powder time.
(9) after mixing powder, meal mixer is closed.
Using this method, powder diameter and screening conclusion after screening are shown in Table 1.
Embodiment 2~9
Using the method for embodiment 1, it have adjusted control parameter and sieved, the parameter of adjustment and the conclusion drawn are shown in Table 1
~3.
Comparative example 1~5
Using the method for embodiment 1, it have adjusted control parameter and sieved, the parameter of adjustment and the conclusion drawn are shown in Table 1
~3.
Table 1 adjusts charging rate
Table 2 adjusts ultrasonic frequency vibratory
The adjustment vibration deviation angle of table 3
Embodiment 10 sieves 15~53 μm of Titanium Powder
(1) 0~250 μm of metal dust raw material is prepared using atomization.
(2) fine screen mesh is with 15 μm, and wide-meshed screen is with 53 μm.Screen area is 0.2m2。
(3) high-purity Ar is filled with into screening system, the speed of inflation is 9L/min, that is, corresponds to pressure reducing valve outlet air pressure and be
0.5MPa.Oxygen content is monitored, when oxygen content is less than 0.8vol%, stops inflation.
(4) charging switch is opened, allows powder uniform flow to enter feed bin.The Weight control once fed is for 10kg.
(5) it is 1.0kg/min to control charging rate, that is, corresponds to the pneumatic pressure control of batcher in 0.2MPa.
(6) sieved using dither sieving technology, vibration frequency 35kHz, vibration deviation angle is 10 °.
(7) 60min is sieved, screening terminates, and closes screening plant.
(8) inert protective gas, inflationtime 15min are filled with to meal mixer.The powder for receiving powder tank is taken directly to pour into mixed powder
Device carries out powder mixing.Meal mixer rotary speed is 80r/min, and it is 35min to mix the powder time.
(9) after mixing powder, meal mixer is closed.
Using this method, powder diameter and screening conclusion after screening are shown in Table 4.
Embodiment 11~12
Using the method for embodiment 10, it have adjusted sieve particle diameter and sieved, the parameter of adjustment and the conclusion drawn are shown in Table
4.Wherein, 20~63 μm of Titanium Powder is sieved, fine screen mesh is with 20 μm, and wide-meshed screen is with 63 μm；The titanium alloy of 45~106 μm of screening
Powder, fine screen mesh is with 45 μm, and wide-meshed screen is with 106 μm.
Table 4
The above is the preferred embodiment of the present invention, is not intended to limit the invention.Based on the embodiment of the present invention,
Those of ordinary skill in the art's all other embodiments obtained on the premise of creative work is not made, belong to this
Invent the scope of protection.In addition, it is any in the case where not departing from the method for the present invention thought, according to ordinary skill knowledge
The various replacements or change made with customary means, are all contained in the scope of the present invention.
Claims (10)
1. a kind of method for sieving of metal dust, it is characterised in that sieved using ultrasonic wave high frequency shale shaker to metal dust
Point, and using two level screening mode, specifically comprise the following steps：
A, sieve is selected：According to the particle diameter of metal target powder, corresponding wide-meshed screen and fine screen mesh are selected；
B, sieve：Sieved in atmosphere of inert gases, the charging rate for controlling the metal dust on every square metre of sieve is
2.66~6kg/min, ultrasonic vibration frequency are 33~37kHz, and vibration deviation angle is 5~15 °；After screening, on fine screen mesh
Metal dust meets the Particle size requirements of metal target powder.
2. the method for sieving of metal dust according to claim 1, it is characterised in that：In b step, screen area 0.2
~0.3m2, the charging rate of metal dust is 0.8~1.2kg/min.
3. the method for sieving of metal dust according to claim 1, it is characterised in that：Inert gas atmosphere described in b step
In enclosing, oxygen content is no more than 0.8vol%.
4. the method for sieving of metal dust according to claim 1, it is characterised in that：In b step, inert gas is argon
Gas, helium, neon, Krypton or xenon.
5. the method for sieving of metal dust according to claim 1, it is characterised in that：In b step, sieving time for 30~
60min。
6. the method for sieving of metal dust according to claim 1, it is characterised in that：Step c is carried out after b step,
The step c is：In atmosphere of inert gases, the metal dust on fine screen mesh is transferred in meal mixer and carries out mixed powder, control is mixed
The rotary speed of powder device is 80~100r/min, and it is 30~40min to mix the powder time.
7. according to the method for sieving of claim 1~6 any one of them metal dust, it is characterised in that：Metal to be sieved
The particle diameter of powder is less than 250 μm.
8. according to the method for sieving of claim 1~7 any one of them metal dust, it is characterised in that：Metal target powder
Particle diameter be 15~45 μm, 15~53 μm, 20~63 μm or 45~106 μm.
9. according to the method for sieving of claim 1~8 any one of them metal dust, it is characterised in that：Into screening system
It is filled with inert gas and obtains atmosphere of inert gases, wherein, the speed of inflation is 9~10L/min, and inflationtime is 3~5min；It is lazy
Property gas purity is higher than 99.99vol%.
10. according to the method for sieving of claim 1~9 any one of them metal dust, it is characterised in that：The metal dust
For at least one of elemental metals powder or metal alloy powder, metal species in elemental metals powder or metal alloy powder are titanium,
Cobalt, chromium, iron, vanadium, tungsten, molybdenum, tantalum, aluminium or nickel；It is preferred that the metal dust is titanium valve or Titanium Powder.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465822A (en) * | 2018-05-02 | 2018-08-31 | 朱秀峰 | A kind of preparation method and preparation facilities of globular metallic powder |
| CN111437993A (en) * | 2020-03-12 | 2020-07-24 | 上海航天精密机械研究所 | Screening device and method for mixed steel powder and dissimilar powder for S L M forming |
| CN112570283A (en) * | 2020-11-29 | 2021-03-30 | 连云港中再钢铁炉料有限公司 | Drum type roller screening separation method |
| CN113702253A (en) * | 2021-07-08 | 2021-11-26 | 中国科学院金属研究所 | Method for detecting particle size of ultrafine powder for selective laser melting forming |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4521599B2 (en) * | 2004-11-08 | 2010-08-11 | 本多電子株式会社 | Sieve device |
| CN102172576A (en) * | 2010-12-30 | 2011-09-07 | 安泰科技股份有限公司 | Metal powder screening device and method |
| CN104325136A (en) * | 2014-11-26 | 2015-02-04 | 康凯 | Metal powder as well as preparation method and application thereof |
| CN105642879A (en) * | 2016-01-14 | 2016-06-08 | 鞍山东大激光科技有限公司 | Spherical TC4 titanium alloy powder used for laser 3D printing and preparation method thereof |
| JP2017094272A (en) * | 2015-11-24 | 2017-06-01 | ホソカワミクロン株式会社 | Screening device |
| CN107051865A (en) * | 2017-04-24 | 2017-08-18 | 深圳微纳增材技术有限公司 | A kind of online metal dust screening machine and method for sieving suitable for 3D printing |
-
2017
- 2017-11-23 CN CN201711183002.9A patent/CN107931620B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4521599B2 (en) * | 2004-11-08 | 2010-08-11 | 本多電子株式会社 | Sieve device |
| CN102172576A (en) * | 2010-12-30 | 2011-09-07 | 安泰科技股份有限公司 | Metal powder screening device and method |
| CN104325136A (en) * | 2014-11-26 | 2015-02-04 | 康凯 | Metal powder as well as preparation method and application thereof |
| JP2017094272A (en) * | 2015-11-24 | 2017-06-01 | ホソカワミクロン株式会社 | Screening device |
| CN105642879A (en) * | 2016-01-14 | 2016-06-08 | 鞍山东大激光科技有限公司 | Spherical TC4 titanium alloy powder used for laser 3D printing and preparation method thereof |
| CN107051865A (en) * | 2017-04-24 | 2017-08-18 | 深圳微纳增材技术有限公司 | A kind of online metal dust screening machine and method for sieving suitable for 3D printing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465822A (en) * | 2018-05-02 | 2018-08-31 | 朱秀峰 | A kind of preparation method and preparation facilities of globular metallic powder |
| CN111437993A (en) * | 2020-03-12 | 2020-07-24 | 上海航天精密机械研究所 | Screening device and method for mixed steel powder and dissimilar powder for S L M forming |
| CN112570283A (en) * | 2020-11-29 | 2021-03-30 | 连云港中再钢铁炉料有限公司 | Drum type roller screening separation method |
| CN113702253A (en) * | 2021-07-08 | 2021-11-26 | 中国科学院金属研究所 | Method for detecting particle size of ultrafine powder for selective laser melting forming |
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|---|---|
| CN107931620B (en) | 2018-10-02 |
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