CN109482897A - The method that rotation electrode prepares 3D printing spherical titanium and Titanium Powder - Google Patents
The method that rotation electrode prepares 3D printing spherical titanium and Titanium Powder Download PDFInfo
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- CN109482897A CN109482897A CN201910016079.XA CN201910016079A CN109482897A CN 109482897 A CN109482897 A CN 109482897A CN 201910016079 A CN201910016079 A CN 201910016079A CN 109482897 A CN109482897 A CN 109482897A
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- titanium
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Classifications
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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
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
Abstract
The invention discloses a kind of rotation electrode preparation 3D printing spherical titanium and the methods of Titanium Powder, belong to 3D printing field of material technology.The present invention is big in order to solve the ultra-fine titanium or titanium alloy powder preparation difficulty of the prior art; technical problem at high cost; provide a kind of method that rotation electrode prepares 3D printing spherical titanium and Titanium Powder; it include: that stud or titanium alloy bar are put into electric arc melting rotary atomizing device; control device vacuum degree is under 0.6Pa and inert gas shielding; direct current plasma torch is opened, melting stud or titanium alloy bar is drop；Rotation electrode revolving speed is controlled, makes the breakup of drop at subparticle to get 3D printing sized spherical titanium powder or Titanium Powder by centrifugal force.The present invention combines electric arc melting system and rotation electrode system, and the high production efficiency of spherical titanium and Titanium Powder, low energy consumption, products obtained therefrom good sphericity, and it is the very good material of 3D printing that oxygen content is low, good fluidity.
Description
Technical field
The invention belongs to 3D printing field of material technology, and in particular to a kind of rotation electrode preparation 3D printing spherical titanium and
The method of Titanium Powder.
Background technique
3D printing metal powder is also the largest value institute as a most important ring in metal parts 3D printing industrial chain
?.3D printing metal powder is in addition to need to have good plasticity, it is necessary to meet tiny powder diameter, narrower particle size distribution,
Sphericity height, good fluidity and apparent density height etc. require.
Although 3D printing technique obtains the development advanced by leaps and bounds over the years, cost is also greatly reduced, at
This is still higher, and therefore, in industry, application field is most wide at present, is to possess the metal product of high added value, such as titanium closes
Gold and titanium are mainly used for the military industry fields such as medical treatment and aerospace.But the development of 3D printing at present be limited by ultra-fine titanium and
The raw material of Titanium Powder obtains difficulty, leads to high expensive, and limit its scope of application；In addition, preparing sized spherical titanium powder at present
Main technique be atomization, atomization is due to needing to expend a large amount of inert gas, higher cost.It would therefore be highly desirable to open
The technology of preparing and equipment of a kind of completely new 3D printing titanium or titanium alloy powder are sent out, to reduce preparation cost, and it is excellent to obtain performance
Different 3D printing titanium or titanium alloy powder.
Summary of the invention
The present invention is to solve the technical problem that the ultra-fine titanium or titanium alloy powder preparation difficulty of the prior art is big, at high cost.
The technical proposal adopted by the invention to solve the above technical problems is that providing a kind of rotation electrode preparation 3D printing
With spherical titanium and the method for Titanium Powder comprising following steps: stud or titanium alloy bar are put into electric arc melting rotary-atomizing
In device, control device vacuum degree is to open direct current plasma torch under 0.6Pa and inert gas shielding, closes stud or titanium
Golden stick melting is drop；Rotation electrode revolving speed is controlled, makes the breakup of drop at subparticle to get 3D printing use by centrifugal force
Sized spherical titanium powder or Titanium Powder.
Wherein, rotation electrode described above is prepared in 3D printing spherical titanium and the method for Titanium Powder, the stud
Or the diameter of titanium alloy bar is 30mm, length 400mm.
Wherein, rotation electrode described above is prepared in 3D printing spherical titanium and the method for Titanium Powder, the inertia
Gas is the high-purity helium of purity 99.999%.
Based on the above method, the present invention also provides a kind of electric arc melting rotary atomizing devices comprising 1- electric arc melting
System, 2- rotation electrode system；In use, stud or titanium alloy sheet are put into rotation electrode system 2, pass through electric arc melting system
System 1 melts stud or titanium alloy bar is broken into drop atomization micro- for drop then under the centrifugal force effect of rotation electrode
Fine atomization powder 3.
Beneficial effects of the present invention:
The present invention combines electric arc melting system and rotation electrode system, the high production efficiency of spherical titanium and Titanium Powder,
Low energy consumption, greatly reduces preparation 3D printing spherical titanium and Titanium Powder cost；The spherical titanium or titanium alloy produced by the method
The good sphericity of powder, it is the very good material of 3D printing that oxygen content is low, good fluidity；The producing equipment of spherical titanium and Titanium Powder
More stable and reliable, production efficiency is higher than other spherical powder device for making.
Detailed description of the invention
Fig. 1 is the schematic diagram of electric arc melting rotary atomizing device of the present invention.
In the figure, it is marked as 1 is electric arc melting system, 2 be rotation electrode system, and 3 be atomized powder.
Specific embodiment
Specifically, the method for rotation electrode preparation 3D printing spherical titanium and Titanium Powder comprising following steps: by titanium
Stick or titanium alloy bar are put into electric arc melting rotary atomizing device, control device vacuum degree be 0.6Pa and inert gas shielding under,
Direct current plasma torch is opened, melting stud or titanium alloy bar is drop；Rotation electrode revolving speed is controlled, is made by centrifugal force
The breakup of drop is at subparticle to get 3D printing sized spherical titanium powder or Titanium Powder.
It is melted for the ease of stud and titanium alloy bar, the diameter of stud employed in the method for the present invention or titanium alloy bar is
30mm, length 400mm.
To avoid pollution titanium or titanium alloy powder, wherein rotation electrode preparation 3D printing spherical titanium described above and titanium
In the method for alloyed powder, the inert gas is the high-purity helium of purity 99.999%.
Based on the above method, the present invention also provides a kind of electric arc melting rotary atomizing devices comprising 1- electric arc melting
System, 2- rotation electrode system；In use, stud or titanium alloy sheet are put into rotation electrode system 2, pass through electric arc melting system
System 1 melts stud or titanium alloy bar is broken into drop atomization micro- for drop then under the centrifugal force effect of rotation electrode
Fine atomization powder 3.
Using preparation method and preparation facilities of the invention, realizes the high 3D for obtaining powder rate of 45 μm of mass preparation or less and beat
Print titanium or titanium alloy powder.
Below by embodiment, invention is further described in detail, but does not therefore limit the scope of the present invention
Among the embodiment described range.
Embodiment 1
After taking the titanium alloy bar of 30 × 400mm of Ф to remove oxide on surface and impurity, it is put into the rotation that vacuum degree is 0.6Pa
In electrode system, by controlling the power of electric arc melting, making titanium alloy bar melting is drop, and the revolving speed for controlling rotation electrode is
Drop is thrown away electrode system by 25000r/min, the cooled and solidified in the environment of vacuum of the titanium alloy drop after centrifugal breaking,
It takes out after being cooled to room temperature, then is sieved with ultrasonic activation, according to grading, obtain the ball of different micron levels
Shape titanium or titanium alloy powder becomes product with plastic foil vacuum packaging.
The granule-morphology of the 3D printing spherical titanium and Titanium Powder product produced is spherical in shape or spherical, Titanium Powder
The main chemical elements content of product is as shown in table 1；The titanium alloy powder 0~200 micron range endoparticle each batch,
Oxygen content is lower than 0.08%, and sphericity>=90%, sphere sizes (use " Hall flow velocity in 0~53 μ m internal mobility<8s
Meter " test mobility), bulk density: 0~180 μm of titanium valve is greater than 2.35~2.65g/cm3。
The main chemical compositions of 1 titanium alloy powder of table
| Chemical component | Ti-6Al-4V class 5 | Ti-6Al-4V grade 23 |
| Carbon (C) | <0.08 | <0.08 |
| Oxygen (O) | <0.15 | <0.11 |
| Nitrogen (N) | <0.03 | <0.03 |
| Hydrogen (H) | <0.015 | <0.0125 |
| Iron (Fe) | <0.40 | <0.25 |
| Aluminium (Al) | 5.5-6.75 | 5.5-6.5 |
| Vanadium (V) | 3.5-4.5 | 3.5-4.5 |
| Other elements | <0.4 | <0.4 |
| Titanium (Ti) | Surplus | Surplus |
Embodiment 2
After taking the pure titanium rod of 30 × 400mm of Ф to remove oxide on surface and impurity, it is put into the electric rotating that vacuum degree is 0.6Pa
In electrode systems, by controlling the power of electric arc melting, making titanium alloy bar melting is drop, and the revolving speed for controlling rotation electrode is
Drop is thrown away electrode system by 25000r/min, the cooled and solidified in the environment of vacuum of the titanium alloy drop after centrifugal breaking,
It takes out after being cooled to room temperature, then is sieved with ultrasonic activation, according to grading, obtain the ball of different micron levels
Shape titanium valve becomes product with plastic foil vacuum packaging.
The 3D printing produced is spherical in shape or spherical with the granule-morphology of sized spherical titanium powder product, mainization of titanium valve product
It is as shown in table 2 to learn constituent content；In each batch of 0~200 micron range endoparticle, oxygen content is lower than the titanium powder
0.08%, sphericity>=90%, sphere sizes (use " Hall flowmeter " test flowing in 0~53 μ m internal mobility<8s
Property), bulk density: 0~180 μm of titanium valve is greater than 2.35~2.65g/cm3。
The main chemical compositions of 2 titanium alloy powder of table
The preparation method high production efficiency of spherical titanium and Titanium Powder of the invention, low energy consumption；The spherical shape produced by the method
The good sphericity of titanium or titanium alloy powder, it is the very good material of 3D printing that oxygen content is low, good fluidity；Spherical titanium and Titanium Powder
Producing equipment it is more stable and reliable, production efficiency be higher than other spherical powder device for making.
Claims (3)
1. the method that rotation electrode prepares 3D printing spherical titanium and Titanium Powder, it is characterised in that: the following steps are included: by titanium
Stick or titanium alloy bar are put into electric arc melting rotary atomizing device, control device vacuum degree be 0.6Pa and inert gas shielding under,
Direct current plasma torch is opened, melting stud or titanium alloy bar is drop；Rotation electrode revolving speed is controlled, is made by centrifugal force
The breakup of drop is at subparticle to get 3D printing sized spherical titanium powder or Titanium Powder.
2. the method for rotation electrode preparation 3D printing spherical titanium according to claim 1 and Titanium Powder, feature exist
In: the diameter of the stud or titanium alloy bar is 30mm, length 400mm.
3. the method for rotation electrode preparation 3D printing spherical titanium according to claim 1 or 2 and Titanium Powder, feature
Be: the inert gas is the high-purity helium of purity 99.999%.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531180A (en) * | 2020-05-21 | 2020-08-14 | 西藏智材新材料有限公司 | Metallic beryllium powder for 3D printing and preparation method and application thereof |
| CN111570813A (en) * | 2020-05-29 | 2020-08-25 | 西藏智材新材料有限公司 | Beryllium-aluminum alloy powder and preparation method and application thereof |
| CN111702183A (en) * | 2020-07-09 | 2020-09-25 | 四川容克斯科技有限公司 | Spherical titanium-aluminum alloy powder and preparation method and application thereof |
| CN111702181A (en) * | 2020-08-04 | 2020-09-25 | 盘星新型合金材料(常州)有限公司 | Preparation method of titanium-aluminum alloy powder, titanium-aluminum alloy powder and application |
| CN113333767A (en) * | 2021-04-30 | 2021-09-03 | 深圳航天科创实业有限公司 | TC4 spherical powder and preparation method and application thereof |
| CN114101692A (en) * | 2021-11-30 | 2022-03-01 | 山东迈得新材料有限公司 | Preparation method of 3D printing titanium alloy powder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531180A (en) * | 2020-05-21 | 2020-08-14 | 西藏智材新材料有限公司 | Metallic beryllium powder for 3D printing and preparation method and application thereof |
| CN111570813A (en) * | 2020-05-29 | 2020-08-25 | 西藏智材新材料有限公司 | Beryllium-aluminum alloy powder and preparation method and application thereof |
| CN111702183A (en) * | 2020-07-09 | 2020-09-25 | 四川容克斯科技有限公司 | Spherical titanium-aluminum alloy powder and preparation method and application thereof |
| CN111702181A (en) * | 2020-08-04 | 2020-09-25 | 盘星新型合金材料(常州)有限公司 | Preparation method of titanium-aluminum alloy powder, titanium-aluminum alloy powder and application |
| CN113333767A (en) * | 2021-04-30 | 2021-09-03 | 深圳航天科创实业有限公司 | TC4 spherical powder and preparation method and application thereof |
| CN114101692A (en) * | 2021-11-30 | 2022-03-01 | 山东迈得新材料有限公司 | Preparation method of 3D printing titanium alloy powder |
| CN114101692B (en) * | 2021-11-30 | 2023-12-29 | 山东迈得新材料有限公司 | Preparation method of 3D printing titanium alloy powder |
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