CN108145172A - A kind of preparation method of 4D printings special-purpose metal powder - Google Patents
A kind of preparation method of 4D printings special-purpose metal powder Download PDFInfo
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- CN108145172A CN108145172A CN201611100658.5A CN201611100658A CN108145172A CN 108145172 A CN108145172 A CN 108145172A CN 201611100658 A CN201611100658 A CN 201611100658A CN 108145172 A CN108145172 A CN 108145172A
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- memory alloy
- shape memory
- powder
- alloy powder
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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
- 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
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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
- B22F2009/0896—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 particle transport, separation: process and apparatus
Abstract
The invention discloses a kind of preparation methods of 4D printing special-purpose metal powder, include the following steps：Ti-ni shape memory alloy material enters into high-temperature heater, ti-ni shape memory alloy material is processed into the ti-ni shape memory alloy bar of φ 45mm*500mm, it is placed into again contactless, the EIGA vacuum aerosolization of no crucible type prepares 4D and prints dedicated ti-ni shape memory alloy powder, and titanium nickel metal stream is entered by bottom pour ladle in atomizer with the speed of 16 20g/s, so as to be atomized to ti-ni shape memory alloy powder, by high-pressure nozzle using the form of pressurization, then its product powder is collected, mixed ti-ni shape memory alloy powder is passed into filter device, the present invention prints the dedicated packaged type of powder using 4D, it is protected from light because such high-end powder needs to use, dry mode is packed, it is easy to use simultaneously.
Description
Technical field
The present invention relates to 4D printing technique fields more particularly to a kind of preparation methods of 4D printing special-purpose metal powder.
Background technology
4D is printed, and precisely a kind of material for being capable of auto Deformation, only needs specified conditions (such as temperature, humidity),
It does not need to connect the electromechanical equipment of any complexity, corresponding shape can be just automatically formed according to product design.4D prints most critical
It is memory alloy material, such as ti-ni shape memory alloy etc. in medical treatment and aerospace field, possesses unlimited possibility.4D is beaten
Print needs the technical of 3D printing to increase response condition factor, such as the alloy material for having Memorability is carried out 3D printing molding,
Then performance and shape change correspondingly into the requirement of required design within specified temperatures.
4D printings have been achieved for success in the lab, and Tibbits is recently developed out a kind of material, being capable of auto-folder
Into chest.But it is printed there is presently no people with 4D and creates true product.There is no data that can show that adaptive product is real
How many year are also waited for into market, also do not know that can it obtain the performance in programming.If 4D printings can succeed, it will
Revolutionary change is brought to building, military project, medical treatment and manufacturing.
It is existing including ti-ni shape memory alloy material and precious metal memory alloy material in 4D printing metal materials, still
Such material preparation relative difficulty, and cost is costly, and the R＆D cycle is long, therefore, it is proposed to which a kind of 4D prints special gold
Belong to the preparation method of powder.
Invention content
The present invention proposes a kind of preparation method of 4D printings special-purpose metal powder, to solve to propose in above-mentioned background technology
The problem of.
The present invention proposes a kind of preparation method of 4D printings special-purpose metal powder, includes the following steps：
S1, selection formula are TixNiyThe ti-ni shape memory alloy material of form is raw material；
S2, the ti-ni shape memory alloy material chosen in S1 is entered into high-temperature heater, by high-temperature heating, and heats temperature
It is 1400-1600 DEG C to spend, spare after the ti-ni shape memory alloy material melts in high-temperature heater；
S3, the solution of ti-ni shape memory alloy material prepared in S2 is poured into ti-ni shape memory alloy bar molding die
In, being cooled down by cooling device to it, the solution temperature of the ti-ni shape memory alloy material after cooling is 400-600 DEG C, and
Ti-ni shape memory alloy bar molding die is moved on pressurizing unit；
S4, by the ti-ni shape memory alloy material in S3 by pressurizing unit extrusion forming, ti-ni shape memory alloy material is added
Work is into the ti-ni shape memory alloy bar of φ 45mm*500mm, and oxygen content, in 400-500PPM, concentricity is high, in addition to oxygen content
Content of impurities ＜ 0.0001；
S5, ti-ni shape memory alloy bar is placed into EIGA vacuum aerosolization preparation 4D contactless, without crucible type again
Dedicated ti-ni shape memory alloy powder is printed, and titanium nickel metal stream is entered by bottom pour ladle in atomizer with the speed of 16-20g/s,
And purity is passed through into atomizer as 99.99% high-purity argon gas, so as to be atomized to ti-ni shape memory alloy powder；
S6, the form to the ti-ni shape memory alloy powder after being atomized in S5 by high-pressure nozzle using pressurization so that titanium nickel
Memorial alloy powder sprays atomizer, and sprays rate control in 1500-1700m3/ h, and the titanium nickel for spraying atomizer is remembered
Alloy powder is passed into heater box, and its heating temperature is 300-350 DEG C, then collects its product powder；
S7, after being prepared into ti-ni shape memory alloy powder, ti-ni shape memory alloy powder is collected with protective gas, and will
The ti-ni shape memory alloy powder of collection is mixed by stirring, and stir speed (S.S.) turns/min for 1600-2000；
S8, ti-ni shape memory alloy powder mixed in S7 is passed into filter device, so as to treated titanium nickel
Memorial alloy powder is sieved, and collects the ti-ni shape memory alloy powder of 600-250 mesh, as 4D printing special powder finished products；
S9, specialized package is printed using 4D, using be protected from light, thicken, plastics loosely capped vial is packaged.
Preferably, ti-ni shape memory alloy bar is put into Efco-Northrup furnace in S2 or uses small tonne of ultra high power
The mode of electric furnace specially pours or prepared by the mode of continuous casting.
Preferably, the high-temperature heater of the S2 is specially Efco-Northrup furnace or uses small tonne of uhp electric arc furnace.
Preferably, the TixNiy in S1 is specially TiNi, Ti2Ni3, Ti3Ni2, Ti4Ni3 one or more mixture.
Preferably, the agitating device in S1 to S9, filter device, extruder and ti-ni shape memory alloy bar molding die
By cleaning no less than three times.
The present invention is used using the relevant ti-ni shape memory alloy powder of TiNi, Ti2Ni3, Ti3Ni2, Ti3Ni4, the present invention
Contactless, belt coil formula, high-purity argon gas pressurization prepares ti-ni shape memory alloy powder, is not have in the past, and previous titanium nickel closes
Gold, which can't process, carrys out powder, and the present invention provides a kind of peptide-nickel alloy powder of advantage of lower cost, and product grading is completely suitable
For 3-4D printing shapings, oxygen content is low, and biocompatibility is high, is completely suitable in aerospace and medical industry；Meanwhile it adopts
The dedicated packaged type of powder is printed with 4D, because such high-end powder needs are packed by the way of being protected from light, drying, together
When it is easy to use.
Specific embodiment
With reference to specific embodiment, the present invention will be further described.
Embodiment 1
The present invention proposes a kind of preparation method of 4D printings special-purpose metal powder, includes the following steps：
S1, selection ti-ni shape memory alloy material TiNi, Ti2Ni3, Ti3Ni2, it is raw material；
S2, the ti-ni shape memory alloy material chosen in S1 is entered into high-temperature heater, by high-temperature heating, and heats temperature
It is 1400 DEG C to spend, spare after the ti-ni shape memory alloy material melts in high-temperature heater；
S3, the solution of ti-ni shape memory alloy material prepared in S2 is poured into ti-ni shape memory alloy bar molding die
In, cooled down by cooling device to it, the solution temperature of the ti-ni shape memory alloy material after cooling is 400 DEG C, and by titanium
Nickel memory alloy bar forming mold is moved on pressurizing unit；
S4, by the ti-ni shape memory alloy material in S3 by pressurizing unit extrusion forming, ti-ni shape memory alloy material is added
Work is into the ti-ni shape memory alloy bar of φ 45mm*500mm, and oxygen content, in 400PPM, concentricity is high, in addition to the impurity of oxygen content
Total content ＜ 0.0001；
S5, ti-ni shape memory alloy bar is placed into EIGA vacuum aerosolization preparation 4D contactless, without crucible type again
Dedicated ti-ni shape memory alloy powder is printed, and titanium nickel metal stream is entered by bottom pour ladle in atomizer with the speed of 16g/s, and to
Purity is passed through in atomizer as 99.99% high-purity argon gas, so as to be atomized to ti-ni shape memory alloy powder；
S6, the form to the ti-ni shape memory alloy powder after being atomized in S5 by high-pressure nozzle using pressurization so that titanium nickel
Memorial alloy powder sprays atomizer, and sprays rate control in 1500m3/ h, and the ti-ni shape memory alloy that atomizer will be sprayed
Powder is passed into heater box, and its heating temperature is 300 DEG C, then collects its product powder；
S7, after being prepared into ti-ni shape memory alloy powder, ti-ni shape memory alloy powder is collected with protective gas, and will
The ti-ni shape memory alloy powder of collection is mixed by stirring, and stir speed (S.S.) is 1600 turns/min；
S8, ti-ni shape memory alloy powder mixed in S7 is passed into filter device, so as to treated titanium nickel
Memorial alloy powder is sieved, and collects the ti-ni shape memory alloy powder of 600 mesh, as 4D printing special powder finished products；
S9, specialized package is printed using 4D, using be protected from light, thicken, plastics loosely capped vial is packaged.
Ti-ni shape memory alloy bar is put into Efco-Northrup furnace or using small tonne of uhp electric arc furnace in S2
Mode specially pours or prepared by the mode of continuous casting.
The high-temperature heater of the S2 is specially Efco-Northrup furnace or uses small tonne of uhp electric arc furnace.
Agitating device, filter device, extruder and ti-ni shape memory alloy bar molding die in S1 to S9 pass through
Cleaning no less than three times.
Embodiment 2
The present invention proposes a kind of preparation method of 4D printings special-purpose metal powder, includes the following steps：
S1, ti-ni shape memory alloy material TiNi, Ti3Ni2, Ti4Ni3 are chosen as raw material；
S2, the ti-ni shape memory alloy material chosen in S1 is entered into high-temperature heater, by high-temperature heating, and heats temperature
It is 1450 DEG C to spend, spare after the ti-ni shape memory alloy material melts in high-temperature heater；
S3, the solution of ti-ni shape memory alloy material prepared in S2 is poured into ti-ni shape memory alloy bar molding die
In, cooled down by cooling device to it, the solution temperature of the ti-ni shape memory alloy material after cooling is 450 DEG C, and by titanium
Nickel memory alloy bar forming mold is moved on pressurizing unit；
S4, by the ti-ni shape memory alloy material in S3 by pressurizing unit extrusion forming, ti-ni shape memory alloy material is added
Work is into the ti-ni shape memory alloy bar of φ 45mm*500mm, and oxygen content, in 420PPM, concentricity is high, in addition to the impurity of oxygen content
Total content ＜ 0.0001；
S5, ti-ni shape memory alloy bar is placed into EIGA vacuum aerosolization preparation 4D contactless, without crucible type again
Dedicated ti-ni shape memory alloy powder is printed, and titanium nickel metal stream is entered by bottom pour ladle in atomizer with the speed of 17g/s, and to
Purity is passed through in atomizer as 99.99% high-purity argon gas, so as to be atomized to ti-ni shape memory alloy powder；
S6, the form to the ti-ni shape memory alloy powder after being atomized in S5 by high-pressure nozzle using pressurization so that titanium nickel
Memorial alloy powder sprays atomizer, and sprays rate control in 1550m3/ h, and the ti-ni shape memory alloy that atomizer will be sprayed
Powder is passed into heater box, and its heating temperature is 310 DEG C, then collects its product powder；
S7, after being prepared into ti-ni shape memory alloy powder, ti-ni shape memory alloy powder is collected with protective gas, and will
The ti-ni shape memory alloy powder of collection is mixed by stirring, and stir speed (S.S.) is 1700 turns/min；
S8, ti-ni shape memory alloy powder mixed in S7 is passed into filter device, so as to treated titanium nickel
Memorial alloy powder is sieved, and collects the ti-ni shape memory alloy powder of 500 mesh, as 4D printing special powder finished products；
S9, specialized package is printed using 4D, using be protected from light, thicken, plastics loosely capped vial is packaged.
Ti-ni shape memory alloy bar is put into Efco-Northrup furnace or using small tonne of uhp electric arc furnace in S2
Mode specially pours or prepared by the mode of continuous casting.
The high-temperature heater of the S2 is specially Efco-Northrup furnace or uses small tonne of uhp electric arc furnace.
Agitating device, filter device, extruder and ti-ni shape memory alloy bar molding die in S1 to S9 pass through
Cleaning no less than three times.
Embodiment 3
The present invention proposes a kind of preparation method of 4D printings special-purpose metal powder, includes the following steps：
S1, ti-ni shape memory alloy material Ti2Ni3, Ti3Ni2, Ti4Ni3 are chosen as raw material；
S2, the ti-ni shape memory alloy material chosen in S1 is entered into high-temperature heater, by high-temperature heating, and heats temperature
It is 1500 DEG C to spend, spare after the ti-ni shape memory alloy material melts in high-temperature heater；
S3, the solution of ti-ni shape memory alloy material prepared in S2 is poured into ti-ni shape memory alloy bar molding die
In, cooled down by cooling device to it, the solution temperature of the ti-ni shape memory alloy material after cooling is 500 DEG C, and by titanium
Nickel memory alloy bar forming mold is moved on pressurizing unit；
S4, by the ti-ni shape memory alloy material in S3 by pressurizing unit extrusion forming, ti-ni shape memory alloy material is added
Work is into the ti-ni shape memory alloy bar of φ 45mm*500mm, and oxygen content, in 470PPM, concentricity is high, in addition to the impurity of oxygen content
Total content ＜ 0.0001；
S5, ti-ni shape memory alloy bar is placed into EIGA vacuum aerosolization preparation 4D contactless, without crucible type again
Dedicated ti-ni shape memory alloy powder is printed, and titanium nickel metal stream is entered by bottom pour ladle in atomizer with the speed of 18g/s, and to
Purity is passed through in atomizer as 99.99% high-purity argon gas, so as to be atomized to ti-ni shape memory alloy powder；
S6, the form to the ti-ni shape memory alloy powder after being atomized in S5 by high-pressure nozzle using pressurization so that titanium nickel
Memorial alloy powder sprays atomizer, and sprays rate control in 1600m3/ h, and the ti-ni shape memory alloy that atomizer will be sprayed
Powder is passed into heater box, and its heating temperature is 340 DEG C, then collects its product powder；
S7, after being prepared into ti-ni shape memory alloy powder, ti-ni shape memory alloy powder is collected with protective gas, and will
The ti-ni shape memory alloy powder of collection is mixed by stirring, and stir speed (S.S.) is 1900 turns/min；
S8, ti-ni shape memory alloy powder mixed in S7 is passed into filter device, so as to treated titanium nickel
Memorial alloy powder is sieved, and collects the ti-ni shape memory alloy powder of 350 mesh, as 4D printing special powder finished products；
S9, specialized package is printed using 4D, using be protected from light, thicken, plastics loosely capped vial is packaged.
Ti-ni shape memory alloy bar is put into Efco-Northrup furnace or using small tonne of uhp electric arc furnace in S2
Mode specially pours or prepared by the mode of continuous casting.
The high-temperature heater of the S2 is specially Efco-Northrup furnace or uses small tonne of uhp electric arc furnace.
Agitating device, filter device, extruder and ti-ni shape memory alloy bar molding die in S1 to S9 pass through
Cleaning no less than three times.
Embodiment 4
The present invention proposes a kind of preparation method of 4D printings special-purpose metal powder, includes the following steps：
S1, ti-ni shape memory alloy material TiNi, Ti4Ni3 are chosen as raw material；
S2, the ti-ni shape memory alloy material chosen in S1 is entered into high-temperature heater, by high-temperature heating, and heats temperature
It is 1600 DEG C to spend, spare after the ti-ni shape memory alloy material melts in high-temperature heater；
S3, the solution of ti-ni shape memory alloy material prepared in S2 is poured into ti-ni shape memory alloy bar molding die
In, cooled down by cooling device to it, the solution temperature of the ti-ni shape memory alloy material after cooling is 600 DEG C, and by titanium
Nickel memory alloy bar forming mold is moved on pressurizing unit；
S4, by the ti-ni shape memory alloy material in S3 by pressurizing unit extrusion forming, ti-ni shape memory alloy material is added
Work is into the ti-ni shape memory alloy bar of φ 45mm*500mm, and oxygen content, in 500PPM, concentricity is high, in addition to the impurity of oxygen content
Total content ＜ 0.0001；
S5, ti-ni shape memory alloy bar is placed into EIGA vacuum aerosolization preparation 4D contactless, without crucible type again
Dedicated ti-ni shape memory alloy powder is printed, and titanium nickel metal stream is entered by bottom pour ladle in atomizer with the speed of 20g/s, and to
Purity is passed through in atomizer as 99.99% high-purity argon gas, so as to be atomized to ti-ni shape memory alloy powder；
S6, the form to the ti-ni shape memory alloy powder after being atomized in S5 by high-pressure nozzle using pressurization so that titanium nickel
Memorial alloy powder sprays atomizer, and sprays rate control in 1700m3/ h, and the ti-ni shape memory alloy that atomizer will be sprayed
Powder is passed into heater box, and its heating temperature is 350 DEG C, then collects its product powder；
S7, after being prepared into ti-ni shape memory alloy powder, ti-ni shape memory alloy powder is collected with protective gas, and will
The ti-ni shape memory alloy powder of collection is mixed by stirring, and stir speed (S.S.) is 2000 turns/min；
S8, ti-ni shape memory alloy powder mixed in S7 is passed into filter device, so as to treated titanium nickel
Memorial alloy powder is sieved, and collects the ti-ni shape memory alloy powder of 250 mesh, as 4D printing special powder finished products；
S9, specialized package is printed using 4D, using be protected from light, thicken, plastics loosely capped vial is packaged.
Ti-ni shape memory alloy bar is put into Efco-Northrup furnace or using small tonne of uhp electric arc furnace in S2
Mode specially pours or prepared by the mode of continuous casting.
The high-temperature heater of the S2 is specially Efco-Northrup furnace or uses small tonne of uhp electric arc furnace.
Agitating device, filter device, extruder and ti-ni shape memory alloy bar molding die in S1 to S9 pass through
Cleaning no less than three times.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of preparation method of 4D printings special-purpose metal powder, which is characterized in that include the following steps：
S1, selection formula are TixNiyThe ti-ni shape memory alloy material of form is raw material；
S2, the ti-ni shape memory alloy material chosen in S1 is entered into high-temperature heater, by high-temperature heating, and heating temperature is
It is 1400-1600 DEG C, spare after the ti-ni shape memory alloy material melts in high-temperature heater；
S3, the solution of ti-ni shape memory alloy material prepared in S2 is poured into ti-ni shape memory alloy bar molding die, led to
Apparatus for supercooling cools down to it, and the solution temperature of the ti-ni shape memory alloy material after cooling is 400-600 DEG C, and by titanium nickel
Memory alloy bar forming mold is moved on pressurizing unit；
S4, by the ti-ni shape memory alloy material in S3 by pressurizing unit extrusion forming, ti-ni shape memory alloy material is processed into
The ti-ni shape memory alloy bar of φ 45mm*500mm, and oxygen content is in 400-500PPM, concentricity height, in addition to the impurity of oxygen content
Total content ＜ 0.0001；
S5, ti-ni shape memory alloy bar is placed into EIGA vacuum aerosolization preparation 4D printings contactless, without crucible type again
Dedicated ti-ni shape memory alloy powder, and titanium nickel metal stream is entered by bottom pour ladle in atomizer with the speed of 16-20g/s, and to
Purity is passed through in atomizer as 99.99% high-purity argon gas, so as to be atomized to ti-ni shape memory alloy powder；
S6, the form to the ti-ni shape memory alloy powder after being atomized in S5 by high-pressure nozzle using pressurization so that titanium nickel is remembered
Alloy powder sprays atomizer, and sprays rate control in 1500-1700m3/ h, and the ti-ni shape memory alloy that atomizer will be sprayed
Powder is passed into heater box, and its heating temperature is 300-350 DEG C, then collects its product powder；
After S7, prepared composition ti-ni shape memory alloy powder, ti-ni shape memory alloy powder is collected with protective gas, and will be received
The ti-ni shape memory alloy powder of collection is mixed by stirring, and stir speed (S.S.) turns/min for 1600-2000；
S8, ti-ni shape memory alloy powder mixed in S7 is passed into filter device, so as to which to treated, titanium nickel is remembered
Alloy powder is sieved, and collects the ti-ni shape memory alloy powder of 600-250 mesh, as 4D printing special powder finished products；
S9, specialized package is printed using 4D, using be protected from light, thicken, plastics loosely capped vial is packaged.
2. the preparation method of 4D according to claim 1 printing special-purpose metal powder, which is characterized in that in S2 by titanium nickel
It is specially either to pour or connect by the way of small tonne of uhp electric arc furnace that memorial alloy bar, which is put into Efco-Northrup furnace,
It is prepared by the mode of casting.
3. the preparation method of 4D printings special-purpose metal powder according to claim 1, which is characterized in that the high temperature of the S2
Heating furnace is specially Efco-Northrup furnace or uses small tonne of uhp electric arc furnace.
4. the preparation method of 4D printings special-purpose metal powder according to claim 1, which is characterized in that in S1
TixNiy is specially TiNi, Ti2Ni3, Ti3Ni2, Ti4Ni3 one or more mixture.
5. the preparation method of 4D printings special-purpose metal powder according to claim 1, which is characterized in that in S1 to S9
Agitating device, filter device, extruder and ti-ni shape memory alloy bar molding die are by cleaning no less than three times.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014158A (en) * | 2019-04-22 | 2019-07-16 | 西安斯瑞先进铜合金科技有限公司 | A kind of method that aerosolization prepares spherical chromium powder |
| WO2020151476A1 (en) * | 2019-01-24 | 2020-07-30 | 华南理工大学 | 4d printing method and application of titanium-nickel shape memory alloy |
| 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 |
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