CN110919014A - Preparation method of titanium alloy powder for 3D printing - Google Patents
Preparation method of titanium alloy powder for 3D printing Download PDFInfo
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- CN110919014A CN110919014A CN201911191834.4A CN201911191834A CN110919014A CN 110919014 A CN110919014 A CN 110919014A CN 201911191834 A CN201911191834 A CN 201911191834A CN 110919014 A CN110919014 A CN 110919014A
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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
- B22F9/06—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
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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
- B22F9/06—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
- B22F2009/0832—Handling of atomising fluid, e.g. heating, cooling, cleaning, recirculating
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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
- B22F9/06—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
- B22F2009/0836—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 electric or magnetic field or induction
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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
- B22F9/06—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
- B22F2009/0848—Melting process before atomisation
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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
- B22F9/06—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
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a preparation method of titanium alloy powder for 3D printing, which comprises the following steps: s1, smelting and processing the titanium alloy into an electrode rod with the diameter of 50-55 mm and a conical end; s2, vacuumizing the smelting chamber and the atomizing chamber, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8-10 r/min; s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 50-60kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber; s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled to be 6-10 MPa; s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles; and S6, collecting the solidified powder particles to obtain the titanium alloy powder for 3D printing. According to the preparation method of the titanium alloy powder for 3D printing, when the solidification time of particles is less than the spheroidizing time, the solidification time is prolonged, and the balling chance is increased.
Description
Technical Field
The invention relates to the technical field of titanium alloy powder preparation, in particular to a preparation method of titanium alloy powder for 3D printing.
Background
As a main consumable material for metal 3D printing, metal powder has a crucial influence on the quality of a printed product, and 3D printing of precise and complex parts in the fields of aerospace, national defense, medical treatment and the like has high requirements on powder properties such as granularity, morphology, purity and the like.
At present, the main methods for preparing the metal 3D printing powder material include: two-stream atomization, centrifugal atomization, spheroidisation, etc. The gas atomization method includes an EIGA method. The technology melts electrode rod materials which rotate slowly through an induction coil and forms fine liquid flows (the liquid flows do not need to contact a water-cooled crucible and a flow guide pipe) through controlling melting parameters, and when alloy liquid flows through an atomizing nozzle, the liquid flows are smashed and solidified by high-speed pulse air flows generated by the atomizing nozzle to form fine powder particles. Because the material is not contacted with the water-cooled crucible and the guide pipe, the material can not be polluted, and the EIGA technology is theoretically suitable for preparing active material powder and can be used for preparing almost any alloy material. The EIGA technology has the advantages of low energy consumption and the defects of lower atomization efficiency and fine powder yield than the VIGA method.
When the EIGA is used for preparing the titanium alloy powder, if the spheroidization time of atomized particles is shorter than the solidification time, the solidification time is longer, the sphericity of the particles is reduced, and the larger the particles are, the lower the sphericity is; on the contrary, the spheroidizing time is longer than the solidifying time, the solidifying time is short, the atomized metal liquid drops are solidified before the metal liquid drops are fully spheroidized, the balling chance is reduced, and the irregular particles are increased.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a method for preparing titanium alloy powder for 3D printing, which can increase the solidification time and increase the chance of balling when the solidification time of particles is less than the balling time.
The technical scheme of the invention is realized as follows:
a preparation method of titanium alloy powder for 3D printing comprises the following steps:
s1, smelting and processing the titanium alloy into an electrode rod with the diameter of 50-55 mm and a conical end;
s2, vacuumizing the smelting chamber and the atomizing chamber, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8-10 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 50-60kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled to be 6-10 MPa;
s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles;
and S6, collecting the solidified powder particles to obtain the titanium alloy powder for 3D printing.
Preferably, the second induction coil is an intermediate frequency induction coil.
Preferably, the tightly-coupled gas atomization nozzle is a bilateral symmetrical tangential air inlet Laval type annular seam tightly-coupled nozzle.
Preferably, after the step S6, the method further comprises the following steps:
the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
Preferably, the vacuum degrees of the smelting chamber and the atomizing chamber are less than 3.5X10-3 Pa.
According to the preparation method of the titanium alloy powder for 3D printing, the induction coil is driven by 50-60kW of power to melt the electrode bar, the initial temperature of the formed liquid drop is low, the solidification time of the atomized particles is short, the atomized particles are heated for the second time in the atomization chamber through the induction coil, the solidification time of the atomized particles can be prolonged, and the balling chance is increased.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A preparation method of titanium alloy powder for 3D printing comprises the following steps:
s1, smelting and processing the TC4 titanium alloy into an electrode rod with the diameter of 50 mm and a conical end;
s2, vacuumizing a smelting chamber and an atomizing chamber, wherein the smelting chamber and the atomizing chamber are less than 3.5X10-3Pa, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 10 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 60kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled to be 8 MPa; the tightly coupled gas atomizing nozzle is a Laval type circular seam tightly coupled nozzle with bilateral symmetry tangential air inlet;
s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles, wherein the power of the second coil is 15 kW; the second induction coil is a medium-frequency induction coil;
s6, collecting the solidified powder particles to obtain titanium alloy powder for 3D printing; the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
Example 2
A preparation method of titanium alloy powder for TC43D printing comprises the following steps:
s1, smelting and processing the titanium alloy into an electrode rod with the diameter of 55 mm and a conical end;
s2, vacuumizing a smelting chamber and an atomizing chamber, wherein the smelting chamber and the atomizing chamber are less than 3.5X10-3Pa, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 50kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled at 6 MPa; the tightly coupled gas atomizing nozzle is a Laval type circular seam tightly coupled nozzle with bilateral symmetry tangential air inlet;
s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles, wherein the power of the second coil is 10 kW; the second induction coil is a medium-frequency induction coil;
s6, collecting the solidified powder particles to obtain titanium alloy powder for 3D printing; the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
Example 3
A preparation method of titanium alloy powder for TC43D printing comprises the following steps:
s1, smelting and processing the titanium alloy into an electrode rod with the diameter of 55 mm and a conical end;
s2, vacuumizing a smelting chamber and an atomizing chamber, wherein the smelting chamber and the atomizing chamber are less than 3.5X10-3Pa, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 50kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled at 6 MPa; the tightly coupled gas atomizing nozzle is a Laval type circular seam tightly coupled nozzle with bilateral symmetry tangential air inlet;
s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles, wherein the power of the second coil is 12 kW; the second induction coil is a medium-frequency induction coil;
s6, collecting the solidified powder particles to obtain titanium alloy powder for 3D printing; the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
Example 4
A preparation method of titanium alloy powder for 3D printing comprises the following steps:
s1, smelting and processing the TA15 titanium alloy into an electrode rod with the diameter of 50 mm and a conical end;
s2, vacuumizing a smelting chamber and an atomizing chamber, wherein the smelting chamber and the atomizing chamber are less than 3.5X10-3Pa, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 10 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 60kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled to be 8 MPa; the tightly coupled gas atomizing nozzle is a Laval type circular seam tightly coupled nozzle with bilateral symmetry tangential air inlet;
s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles, wherein the power of the second coil is 10 kW; the second induction coil is a medium-frequency induction coil;
s6, collecting the solidified powder particles to obtain titanium alloy powder for 3D printing; the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
Example 5
A preparation method of titanium alloy powder for 3D printing comprises the following steps:
s1, smelting and processing the TA15 titanium alloy into an electrode rod with the diameter of 55 mm and a conical end;
s2, vacuumizing a smelting chamber and an atomizing chamber, wherein the smelting chamber and the atomizing chamber are less than 3.5X10-3Pa, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 50kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled at 6 MPa; the tightly coupled gas atomizing nozzle is a Laval type circular seam tightly coupled nozzle with bilateral symmetry tangential air inlet;
s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles, wherein the power of the second coil is 15 kW; the second induction coil is a medium-frequency induction coil;
s6, collecting the solidified powder particles to obtain titanium alloy powder for 3D printing; the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
Example 6
A preparation method of titanium alloy powder for 3D printing comprises the following steps:
s1, smelting and processing the TA15 titanium alloy into an electrode rod with the diameter of 50 mm and a conical end;
s2, vacuumizing a smelting chamber and an atomizing chamber, wherein the smelting chamber and the atomizing chamber are less than 3.5X10-3Pa, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 55kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled at 6 MPa; the tightly coupled gas atomizing nozzle is a Laval type circular seam tightly coupled nozzle with bilateral symmetry tangential air inlet;
s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles, wherein the power of the second coil is 10 kW; the second induction coil is a medium-frequency induction coil;
s6, collecting the solidified powder particles to obtain titanium alloy powder for 3D printing; the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
Comparative example 1
A preparation method of titanium alloy powder for TC43D printing comprises the following steps:
s1, smelting and processing the titanium alloy into an electrode rod with the diameter of 55 mm and a conical end;
s2, vacuumizing a smelting chamber and an atomizing chamber, wherein the smelting chamber and the atomizing chamber are less than 3.5X10-3Pa, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 60kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled at 6 MPa; the tightly coupled gas atomizing nozzle is a Laval type circular seam tightly coupled nozzle with bilateral symmetry tangential air inlet;
s5, collecting the solidified powder particles to obtain titanium alloy powder for 3D printing; the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
Comparative example 2
A preparation method of titanium alloy powder for 3D printing comprises the following steps:
s1, smelting and processing the TA15 titanium alloy into an electrode rod with the diameter of 50 mm and a conical end;
s2, vacuumizing a smelting chamber and an atomizing chamber, wherein the smelting chamber and the atomizing chamber are less than 3.5X10-3Pa, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 65kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled at 6 MPa; the tightly coupled gas atomizing nozzle is a Laval type circular seam tightly coupled nozzle with bilateral symmetry tangential air inlet;
s5, collecting the solidified powder particles to obtain titanium alloy powder for 3D printing; screening titanium alloy powder for 3D printing according to different particle size grades, and packaging with inert gas
The titanium alloy powders prepared in examples 1-6 and comparative examples 1-2 were tested, respectively, and it was found that the titanium alloy powders prepared in examples 1-6 all had better overall sphericity and fewer hollow sphere defects than those of comparative examples 1-2.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The preparation method of the titanium alloy powder for 3D printing is characterized by comprising the following steps:
s1, smelting and processing the titanium alloy into an electrode rod with the diameter of 50-55 mm and a conical end;
s2, vacuumizing the smelting chamber and the atomizing chamber, filling argon, feeding the conical tip of the electrode rod into the smelting chamber, and controlling the rotating speed of the electrode rod to be 8-10 r/min;
s3, feeding the electrode rod into the first induction coil at a constant speed, driving the induction coil with 50-60kW of power to melt the electrode rod, forming liquid drops at the conical tip and dropping the liquid drops into the atomizing chamber;
s4, atomizing the metal droplets into powder particles through a tightly coupled gas atomizing nozzle, wherein the atomizing pressure is controlled to be 6-10 MPa;
s5, arranging an induction coil in the atomizing chamber and starting a second induction coil to heat the powder particles;
and S6, collecting the solidified powder particles to obtain the titanium alloy powder for 3D printing.
2. The method for preparing titanium alloy powder for 3D printing according to claim 1, wherein the second induction coil is a medium frequency induction coil.
3. The method for preparing titanium alloy powder for 3D printing according to claim 1, wherein the tightly coupled gas atomization nozzle is a bilaterally symmetrical tangential air inlet Laval type ring seam tightly coupled nozzle.
4. The method for preparing titanium alloy powder for 3D printing according to claim 1, further comprising, after the step of S6, sieving:
the titanium alloy powder for 3D printing is sieved according to different particle size grades and is packaged by inert gas.
5. The method for preparing titanium alloy powder for 3D printing according to claim 1, wherein the vacuum degree of the melting chamber and the atomizing chamber is less than 3.5x10 "3 Pa.
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| CN201911191834.4A CN110919014A (en) | 2019-11-28 | 2019-11-28 | Preparation method of titanium alloy powder for 3D printing |
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| CN201911191834.4A CN110919014A (en) | 2019-11-28 | 2019-11-28 | Preparation method of titanium alloy powder for 3D printing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145852A (en) * | 2021-03-23 | 2021-07-23 | 长沙理工大学 | Preparation of novel 3D printing medical TiNbZr spherical alloy powder and 3D printing method |
| CN113231640A (en) * | 2021-06-10 | 2021-08-10 | 江苏智仁景行新材料研究院有限公司 | Device and method for atomizing metal powder by combining inert gas and plasma |
| 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 |
| CN114226738A (en) * | 2021-11-29 | 2022-03-25 | 中铁工程装备集团有限公司 | Powder preparation method for 3D printing and powder stirring mill |
| CN114990383A (en) * | 2022-06-16 | 2022-09-02 | 南通金源智能技术有限公司 | Titanium alloy for improving yield ratio of electrode induction smelting inert gas atomized powder fine powder and atomized powder preparation method thereof |
| CN115971502A (en) * | 2021-10-15 | 2023-04-18 | 安徽中体新材料科技有限公司 | Method for preparing 3D printing titanium alloy powder through rotary atomization of induction electrode and titanium alloy powder |
| US20240066593A1 (en) * | 2022-08-23 | 2024-02-29 | Wisconsin Alumni Research Foundation | Metallic powders and methods therefor |
-
2019
- 2019-11-28 CN CN201911191834.4A patent/CN110919014A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145852A (en) * | 2021-03-23 | 2021-07-23 | 长沙理工大学 | Preparation of novel 3D printing medical TiNbZr spherical alloy powder and 3D printing method |
| CN113145852B (en) * | 2021-03-23 | 2023-09-15 | 长沙理工大学 | Preparation of novel 3D printing medical TiNbZr spherical alloy powder and 3D printing method |
| CN113231640A (en) * | 2021-06-10 | 2021-08-10 | 江苏智仁景行新材料研究院有限公司 | Device and method for atomizing metal powder by combining inert gas and plasma |
| CN113231640B (en) * | 2021-06-10 | 2023-09-01 | 江苏智仁景行新材料研究院有限公司 | Device and method for jointly atomizing metal powder by inert gas and plasma |
| CN115971502A (en) * | 2021-10-15 | 2023-04-18 | 安徽中体新材料科技有限公司 | Method for preparing 3D printing titanium alloy powder through rotary atomization of induction electrode and titanium alloy powder |
| CN114226738A (en) * | 2021-11-29 | 2022-03-25 | 中铁工程装备集团有限公司 | Powder preparation method for 3D printing and powder stirring mill |
| 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 |
| CN114990383A (en) * | 2022-06-16 | 2022-09-02 | 南通金源智能技术有限公司 | Titanium alloy for improving yield ratio of electrode induction smelting inert gas atomized powder fine powder and atomized powder preparation method thereof |
| US20240066593A1 (en) * | 2022-08-23 | 2024-02-29 | Wisconsin Alumni Research Foundation | Metallic powders and methods therefor |
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