CN106670483A - Preparing method for TA15 alloy spherical powder - Google Patents
Preparing method for TA15 alloy spherical powder Download PDFInfo
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- CN106670483A CN106670483A CN201611174424.5A CN201611174424A CN106670483A CN 106670483 A CN106670483 A CN 106670483A CN 201611174424 A CN201611174424 A CN 201611174424A CN 106670483 A CN106670483 A CN 106670483A
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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
- B22F9/10—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying using centrifugal force
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Abstract
The invention discloses a preparing method for TA15 alloy spherical powder. The preparing method includes the following steps that firstly, a TA15 mother alloy bar is smelted; secondly, an electrode bar obtained after machining of the TA15 mother alloy bar has the diameter of 10 mm to 90 mm and the length of 100 mm to 1000 mm; thirdly, the electrode bar is put into an inert gas reaction chamber and rotates at a high speed, a plasma gun with the power of 100 KW to 300 KW is used for heating the end portion of the electrode bar, and therefore the end portion of the electrode bar is melted; fourthly, molten metal flies under the effect of centrifugal force after being atomized and forms thin and small liquid drops, the liquid drops are rapidly cooled in shield gas, then form particles and fall into a collector at the bottom of an atomization chamber, and the TA15 alloy spherical powder is obtained; and fifthly, the prepared TA15 alloy spherical powder is subjected to electrostatic separation, screening and impurity removing treatment under the inert gas shield. The prepared TA15 alloy spherical powder has the beneficial effects of being pure, good in sphericity degree, low in oxygen content and few in inclusion.
Description
Technical field
The invention belongs to alloy spherical powder preparing technical field, is related to a kind of preparation side of TA15 alloy sphericals powder
Method.
Background technology
Titanium or titanium alloy is excellent with a series of protrusions such as specific strength height, the good, high temperature resistants of corrosion resistance as structural metal
Point, can carry out pressure processing shaping, welding and the machining of various ways.With the development that titanium alloy is studied and produced,
It is widely used in the fields such as Aero-Space, such as turbogenerator and airplane frame key position.
Ti-6.5Al-2Zr -1Mo-1V titanium alloys（Abbreviation TA15 alloys）Belong to the near αtitanium alloy of high Al equivalents, not only
With the good heat conductivity of alpha titanium alloy and solderability and the process plastic close to alpha-beta Type Titanium Alloy, with specific strength
The advantages of height, good heat endurance, excellent creep-resistant property and strong solderability, it is widely used in aerospace industry crucial
The manufacture of parts.
Low TA15 Rate of Finished Product for Titanium Alloy, high cost, following process difficulty, limit are produced using traditional forging and casting method
The extensive application of material is made.Method for preparing powder metallurgy is a kind with technological process is short, stock utilization is high, fine microstructures
The near-net-shape technology of the advantages of uniformly, composition is controllable.Therefore, using PREP methods prepare high-temperature titanium alloy TA15 have it is good
Application prospect.
The content of the invention
To overcome above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of preparation of TA15 alloy sphericals powder
Method, with method is simple, pure, sphericity good, low oxygen content, low field trash the characteristics of.
For achieving the above object, the technical solution used in the present invention is：A kind of preparation method of TA15 alloy sphericals powder, by matter
Amount percentage, it is characterised in that comprise the following steps：
Step 1, the melting of TA15 foundry alloy rods；By essential element：The Mo of the Al of 5.5-7.1wt%, 0.5-2.0wt%, 0.5-
The Zr of the V of 1.0wt%, 1.5-2.5wt%, remaining is Ti matrixes, adds minor element：C<0.08wt%, H<0.015wt%, O<
0.15wt%, N<0.05wt%, Fe<0.25wt%, Si carry out alloy proportion for 0.15wt%, make TA15 alloy foundry alloy bar stocks；
Step 2, by the TA15 alloy foundry alloy bar stocks of step 1 electrode bar, a diameter of 10-90mm of electrode bar are made, and length is
100-1000mm, electrode bar linearity deviation is controlled in≤0.1mm/m；
Step 3, by electrode bar rotation is placed in inert gas confined reaction room and tells, using plasma gun heating electrode bar end
Portion so as to melt；
Step 4, flies out under the action of the centrifugal force after motlten metal atomization, forms fine drop, drop rapid cooling in protective gas
After form spheric granules, fall in spray chamber bottom collection vessel, obtain TA15 alloy spherical powder；
Step 5, electrostatic separation, screening, removal of impurities is carried out to TA15 alloy sphericals powder under inert gas shielding and obtains pure after processing
Net TA15 alloy spherical powder.
Inert gas described in step 3 and step 5 is the mixed gas of helium or argon gas or helium and argon gas.
The invention has the beneficial effects as follows：The preparation method of TA15 alloy sphericals powder of the present invention, by high speed rotating centrifugal
The method of atomization prepares TA15 alloy spherical powder, and alloying component segregation is reduced to greatest extent, eliminates and organizes thick and inequality
Even tissue.Near-net-shape and automatic batch production are capable of achieving simultaneously, effectively reduce the loss of metal.Because in its production process not
Mix with crucible and deoxidier etc., be not afraid of and be mixed into impurity, so producing into powder has high-purity, sphericity is good, miscellaneous at a low price
The performance indications such as thing content, it is ensured that the correctness and uniformity of material composition proportioning.
Description of the drawings
Fig. 1 is the TA15 alloy powder shape appearance figures that the present invention is prepared using PREP methods.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in detail.
Embodiment 1：
A kind of preparation method of TA15 alloy sphericals powder, comprises the following steps：
Step 1, the melting of TA15 foundry alloy rods；By essential element：The V of the Mo of the Al of 5.5wt%, 0.6wt%, 0.55wt%,
The Zr of 1.7wt%, remaining is Ti matrixes, adds minor element：The O of the H of the C of 0.07wt%, 0.014wt%, 0.14wt%,
The Fe of the N of 0.045wt%, 0.23wt%, and the Si of 0.15wt% carries out alloy proportion, makes TA15 alloy foundry alloy bar stocks；
Step 2, by the TA15 alloy foundry alloy bar stocks of step 1 electrode bar is made, a diameter of 85mm of electrode bar, and length is 950mm,
Electrode bar linearity deviation is controlled in≤0.1mm/m；
Step 3, electrode bar is placed in the confined reaction room filled with helium and is rotated at a high speed, and using plasma gun electrode bar is heated
End so as to melt；
Step 4, flies out under the action of the centrifugal force after motlten metal atomization, forms fine drop, drop rapid cooling in protective gas
After form spheric granules, fall in spray chamber bottom collection vessel, obtain TA15 alloy spherical powder；
Step 5, carries out obtaining pure after electrostatic separation, screening, removal of impurities process under helium protection to TA15 alloy sphericals powder
TA15 alloy spherical powder.
Embodiment 2
A kind of preparation method of TA15 alloy sphericals powder, comprises the following steps：
Step 1, the melting of TA15 foundry alloy rods；By essential element：The V of the Mo of the Al of 6.0wt%, 1.0wt%, 0.7wt%,
The Zr of 2.0wt%, remaining is Ti matrixes, adds minor element：The O of the H of the C of 0.05wt%, 0.012wt%, 0.13wt%,
The Fe of the N of 0.03wt%, 0.2wt%, and the Si of 0.15wt% carries out alloy proportion, makes TA15 alloy foundry alloy bar stocks；
Step 2, by the TA15 alloy foundry alloy bar stocks of step 1 electrode bar is made, a diameter of 75mm of electrode bar, and length is 850mm,
Electrode bar linearity deviation is controlled in≤0.1mm/m；
Step 3, electrode bar is placed in the confined reaction room filled with argon gas and is rotated at a high speed, and using plasma gun electrode bar is heated
End so as to melt；
Step 4, flies out under the action of the centrifugal force after motlten metal atomization, forms fine drop, drop rapid cooling in protective gas
After form spheric granules, fall in spray chamber bottom collection vessel, obtain TA15 alloy spherical powder；
Step 5, carries out obtaining pure after electrostatic separation, screening, removal of impurities process under argon gas protection to TA15 alloy sphericals powder
TA15 alloy spherical powder.
Embodiment 3
A kind of preparation method of TA15 alloy sphericals powder, comprises the following steps：
Step 1, the melting of TA15 foundry alloy rods；By essential element：The V of the Mo of the Al of 6.5wt%, 1.25wt%, 0.85wt%,
The Zr of 2.2wt%, remaining is Ti matrixes, adds minor element：The O of the H of the C of 0.045wt%, 0.01wt%, 0.11wt%,
The Fe of the N of 0.025wt%, 0.18wt%, and the Si of 0.15wt% carries out alloy proportion, makes TA15 alloy foundry alloy rods
Base；
Step 2, by the TA15 alloy foundry alloy bar stocks of step 1 electrode bar is made, a diameter of 70mm of electrode bar, and length is 800mm,
Electrode bar linearity deviation is controlled in≤0.1mm/m；
Step 3, electrode bar is placed in the confined reaction room filled with helium and argon gas and is rotated at a high speed, is heated using plasma gun
Electrode stick end so as to melt；
Step 4, flies out under the action of the centrifugal force after motlten metal atomization, forms fine drop, drop rapid cooling in protective gas
After form spheric granules, fall in spray chamber bottom collection vessel, obtain TA15 alloy spherical powder；
Step 5, electrostatic separation, screening, removal of impurities are carried out under the protection of helium and argon gas mixed gas to TA15 alloy sphericals powder
Pure TA15 alloy spherical powder is obtained after process.
Claims (5)
1. a kind of preparation method of TA15 alloy sphericals powder, by mass percentage, it is characterised in that comprise the following steps：
Step 1, the melting of TA15 foundry alloy rods；By essential element：The Mo of the Al of 5.5-7.1wt%, 0.5-2.0wt%, 0.5-
The Zr of the V of 1.0wt%, 1.5-2.5wt%, remaining is Ti matrixes, adds minor element：C<0.08wt%, H<0.015wt%, O<
0.15wt%, N<0.05wt%, Fe<0.25wt%, Si carry out alloy proportion for 0.15wt%, make TA15 alloy foundry alloy bar stocks；
Step 2, by the TA15 alloy foundry alloy bar stocks of step 1 electrode bar, a diameter of 10-90mm of electrode bar are made, and length is
100-1000mm, electrode bar linearity deviation is controlled in≤0.1mm/m；
Step 3, electrode bar is placed in inert gas confined reaction room and is rotated at a high speed, using plasma gun heating electrode bar end
Portion so as to melt；
Step 4, flies out under the action of the centrifugal force after motlten metal atomization, forms fine drop, drop rapid cooling in protective gas
After form spheric granules, fall in spray chamber bottom collection vessel, obtain TA15 alloy spherical powder；
Step 5, electrostatic separation, screening, removal of impurities is carried out to TA15 alloy sphericals powder under inert gas shielding and obtains pure after processing
Net TA15 alloy spherical powder.
2. the preparation method of a kind of TA15 alloy sphericals powder according to claim 1, it is characterised in that step 3 and step
Inert gas described in rapid 5 is the mixed gas of helium or argon gas or helium and argon gas.
3. the preparation method of a kind of TA15 alloy sphericals powder according to claim 1, it is characterised in that including following step
Suddenly：
Step 1, the melting of TA15 foundry alloy rods；By essential element：The V of the Mo of the Al of 5.5wt%, 0.6wt%, 0.55wt%,
The Zr of 1.7wt%, remaining is Ti matrixes, adds minor element：The O of the H of the C of 0.07wt%, 0.014wt%, 0.14wt%,
The Fe of the N of 0.045wt%, 0.23wt%, and the Si of 0.15wt% carries out alloy proportion, makes TA15 alloy foundry alloy bar stocks；
Step 2, by the TA15 alloy foundry alloy bar stocks of step 1 electrode bar is made, a diameter of 85mm of electrode bar, and length is 950mm,
Electrode bar linearity deviation is controlled in≤0.1mm/m；
Step 3, electrode bar is placed in the confined reaction room filled with helium and is rotated at a high speed, and using plasma gun electrode bar is heated
End so as to melt；
Step 4, flies out under the action of the centrifugal force after motlten metal atomization, forms fine drop, drop rapid cooling in protective gas
After form spheric granules, fall in spray chamber bottom collection vessel, obtain TA15 alloy spherical powder；
Step 5, carries out obtaining pure after electrostatic separation, screening, removal of impurities process under helium protection to TA15 alloy sphericals powder
TA15 alloy spherical powder.
4. the preparation method of a kind of TA15 alloy sphericals powder according to claim 1, it is characterised in that including following step
Suddenly：
Step 1, the melting of TA15 foundry alloy rods；By essential element：The V of the Mo of the Al of 6.0wt%, 1.0wt%, 0.7wt%,
The Zr of 2.0wt%, remaining is Ti matrixes, adds minor element：The O of the H of the C of 0.05wt%, 0.012wt%, 0.13wt%,
The Fe of the N of 0.03wt%, 0.2wt%, and the Si of 0.15wt% carries out alloy proportion, makes TA15 alloy foundry alloy bar stocks；
Step 2, by the TA15 alloy foundry alloy bar stocks of step 1 electrode bar is made, a diameter of 75mm of electrode bar, and length is 850mm,
Electrode bar linearity deviation is controlled in≤0.1mm/m；
Step 3, electrode bar is placed in the confined reaction room filled with argon gas and is rotated at a high speed, and using plasma gun electrode bar is heated
End so as to melt；
Step 4, flies out under the action of the centrifugal force after motlten metal atomization, forms fine drop, drop rapid cooling in protective gas
After form spheric granules, fall in spray chamber bottom collection vessel, obtain TA15 alloy spherical powder；
Step 5, carries out obtaining pure after electrostatic separation, screening, removal of impurities process under argon gas protection to TA15 alloy sphericals powder
TA15 alloy spherical powder.
5. the preparation method of a kind of TA15 alloy sphericals powder according to claim 1, it is characterised in that including following step
Suddenly：
Step 1, the melting of TA15 foundry alloy rods；By essential element：The V of the Mo of the Al of 6.5wt%, 1.25wt%, 0.85wt%,
The Zr of 2.2wt%, remaining is Ti matrixes, adds minor element：The O of the H of the C of 0.045wt%, 0.01wt%, 0.11wt%,
The Fe of the N of 0.025wt%, 0.18wt%, and the Si of 0.15wt% carries out alloy proportion, makes TA15 alloy foundry alloy rods
Base；
Step 2, by the TA15 alloy foundry alloy bar stocks of step 1 electrode bar is made, a diameter of 70mm of electrode bar, and length is 800mm,
Electrode bar linearity deviation is controlled in≤0.1mm/m；
Step 3, electrode bar is placed in the confined reaction room filled with helium and argon gas and is rotated at a high speed, is heated using plasma gun
Electrode stick end so as to melt；
Step 4, flies out under the action of the centrifugal force after motlten metal atomization, forms fine drop, drop rapid cooling in protective gas
After form spheric granules, fall in spray chamber bottom collection vessel, obtain TA15 alloy spherical powder；
Step 5, electrostatic separation, screening, removal of impurities are carried out under the protection of helium and argon gas mixed gas to TA15 alloy sphericals powder
Pure TA15 alloy spherical powder is obtained after process.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363262A (en) * | 2017-06-06 | 2017-11-21 | 中国航天空气动力技术研究院 | A kind of preparation method and application of high-purity compact spherical titanium zirconium alloy powder |
| CN107866564A (en) * | 2017-12-21 | 2018-04-03 | 西安欧中材料科技有限公司 | A kind of Ultra Low-oxygen TA7 titanium alloy powder preparation methods |
| CN107866563A (en) * | 2017-12-21 | 2018-04-03 | 西安欧中材料科技有限公司 | A kind of preparation method of TB6 alloy sphericals powder |
| CN108044109A (en) * | 2017-12-21 | 2018-05-18 | 西安欧中材料科技有限公司 | For the preparation method of the Nickel-titanium alloy for medical purpose powder of increasing material manufacturing |
| CN108941595A (en) * | 2018-08-07 | 2018-12-07 | 西安赛隆金属材料有限责任公司 | A kind of silver-colored and silver alloy powder preparation method |
| CN111230132A (en) * | 2020-04-26 | 2020-06-05 | 西安赛隆金属材料有限责任公司 | Preparation method of metal powder |
| 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 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363262A (en) * | 2017-06-06 | 2017-11-21 | 中国航天空气动力技术研究院 | A kind of preparation method and application of high-purity compact spherical titanium zirconium alloy powder |
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| CN107866564A (en) * | 2017-12-21 | 2018-04-03 | 西安欧中材料科技有限公司 | A kind of Ultra Low-oxygen TA7 titanium alloy powder preparation methods |
| CN107866563A (en) * | 2017-12-21 | 2018-04-03 | 西安欧中材料科技有限公司 | A kind of preparation method of TB6 alloy sphericals powder |
| CN108044109A (en) * | 2017-12-21 | 2018-05-18 | 西安欧中材料科技有限公司 | For the preparation method of the Nickel-titanium alloy for medical purpose powder of increasing material manufacturing |
| CN108941595A (en) * | 2018-08-07 | 2018-12-07 | 西安赛隆金属材料有限责任公司 | A kind of silver-colored and silver alloy powder preparation method |
| CN111230132A (en) * | 2020-04-26 | 2020-06-05 | 西安赛隆金属材料有限责任公司 | Preparation method of metal powder |
| CN111230132B (en) * | 2020-04-26 | 2020-08-25 | 西安赛隆金属材料有限责任公司 | Preparation method of metal powder |
| 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 |
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Application publication date: 20170517 |