CN107199343A - A kind of 3D printing aluminium powder and preparation method thereof - Google Patents
A kind of 3D printing aluminium powder and preparation method thereof Download PDFInfo
- Publication number
- CN107199343A CN107199343A CN201710329671.6A CN201710329671A CN107199343A CN 107199343 A CN107199343 A CN 107199343A CN 201710329671 A CN201710329671 A CN 201710329671A CN 107199343 A CN107199343 A CN 107199343A
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- CN
- China
- Prior art keywords
- aluminium powder
- printing
- parts
- weight
- diameter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Abstract
The invention provides a kind of preparation method of new 3D printing material, Grenaille is first ground into a diameter of 150 200nm aluminium powder through ball mill, then by aluminium powder Surface coating polymethyl methacrylate, available for 3D printing manufacture.Using metallic aluminium powder as 3D printing material, preparation method is simple, and the fusing point of aluminium powder is high for 660 degree of fusion temperatures, and printing heat distortion temperature, tensile strength, bending strength, bending modulus and hardness are all better than common material.
Description
Technical field
The invention belongs to technical field of material, and in particular to a kind of 3D printing aluminium powder and preparation method thereof.
Background technology
In recent years, 3D printing technique obtains the development advanced by leaps and bounds, at present, and the material commonly used in 3D printing technique is modeling
Expect material, using the fusible characteristic of plastic material thermoplasticity, in the molten state, squeezed out at shower nozzle, pass through solidification
It is layering and ultimately forms product.Due to the good thermal fluidity of plastic material, quickly cooling cementability, higher machinery are strong
Degree, is quickly applied and is developed in 3D printing manufacture field.But high molecular 3D printing field still suffer from it is a series of
The problem of and challenge, be embodied in：Current macromolecule 3D printing material prevailing price is high；Due to needing and specifically beating
Print technique to coordinate, the research and development of these high polymer materials normally tend to expendable material mechanical property in itself, heat endurance, weather-proof
Property etc. property, and ensure the machinability of material as far as possible, therefore the product that is prepared with traditional manufacturing technology of performance of printed product
There is certain gap；To the exploitation of macromolecule 3D printing material and its printing technique still in the more initial and unordered stage, compared with
The relation of few research further investigation printed material structure, property and printing technique, lacks the exploitation of quality test program and method,
Also seldom set up the 3D printing material normative standard related to printing technique simultaneously.
Also there are some metal dusts as 3D printing raw material in addition, mainly using high-power energy beam such as laser, electronics
Shu Zuowei thermals source, dusty material is carried out after selective melting, crystallisation by cooling, formation accumulation horizon is continuously shaped, forms final products.
Because fusion of metal powder temperature is high, easily aoxidize, the intensity of influence product, and the material solidification after laser fusion can cause gold
Belong to volume contraction, cause huge material thermal stress, have a strong impact on the strength of materials.Further, since metal dust particle diameter and distribution
Influence, crystallisation by cooling process is complicated, and crystallization process is difficult quantitative control, once thick, dendrite of crystal etc. occur will cause
The problem of mechanical property after material shaping is reduced, final result is exactly that key member can not obtain practical application.
Therefore, research and development currently to macromolecule 3D printing material and its printing technique, should progress into standardization, system
The track of change, improves the standard of existing macromolecule 3D printing material and its printing technique, while increasing original material modification and new
The research and industrialization of material, make great efforts the quality of lifting macromolecule 3D printing material product and reduce cost.
The content of the invention
The present invention provides a kind of 3D printing aluminium powder and preparation method thereof to solve Problems Existing, using metallic aluminium powder conduct
3D printing material, preparation method is simple, and the fusing point of aluminium powder is high for 660 degree of fusion temperatures, and printing heat distortion temperature, stretching are strong
Degree, bending strength, bending modulus and hardness are all better than common material.
What the present invention was achieved through the following technical solutions：
A kind of aluminium powder of 3D printing material, including：Grenaille is first ground into a diameter of 150-200nm aluminium through ball mill
The sphere of powder, then the aluminium powder of polymethyl methacrylate is coated by adsorbing and chemically reacting, its
Specifically preparation method is：
(1) under nitrogen protection, by Grenaille in ball mill ball milling, be ground into tiny aluminium powder, a diameter of 150-
200nm, Ball-milling Time is 3-5h；The diameter grinding that aluminium powder is obtained is to 150-200nm, with very big specific surface area, surface pole
Easily adsorb coated fertilizer particle.
(2) aluminium powder obtained takes 60-70 parts by weight, methacrylate 0.5-1.0 parts by weight, lauryl sodium sulfate
0.01-0.4 parts by weight, ammonium persulfate 3-5 parts by weight add reaction mixer, and adjust pH value to 9, are passed through to reaction mixer
Nitrogen, temperature rises to 60-70 DEG C, and scattered 25-30 minutes with 500-800rpm high-speed stirred, reaction terminates.
(3) drying product is put into apparatus,Soxhlet's and uses acetone surname extraction 24h, solution decompression is filtrated to get poly-
Methacrylate coats aluminum particle, a kind of aluminium powder for 3D printing.
The a diameter of 150-200nm of described aluminium powder, is, because diameter is too small when external environment exceedes its critical-temperature, to incite somebody to action
Generation vigorous oxidation is reacted, to ensure that the mobility of material needs high temperature during 3D printing, to avoid occurring vigorous oxidation
React aluminium powder diameter unsuitable too small, but if diameter is excessive, on the one hand influences 3D printing effect and cause the power after material shaping
Learning when on the other hand performance reduction coats methyl methacrylate to operate.
The oligomer that the methacrylate generates substantial amounts of carboxyl in the basic conditions can be adsorbed onto by aluminum particle
Surface, containing a large amount of carboxyls, it is acid stronger than carbonic acid, can be good for effect with the Al-OH of flake aluminum particle surface, form firm
Chemical bond.
Beneficial effect:
1. using aluminium powder as 3D printing material, heat distortion temperature, tensile strength, bending strength, bending modulus and hard
Degree, than the increase of common material.
2. thick aluminium powder passes through ball mill crushing, rear to turn into thin spherical aluminium powder, good dispersion, activity height, size distribution are equal
It is even, and should not aoxidize and use process safety.
3. aluminium powder has high specific surface area and high chemical reactivity, it is to local environment (temperature, humidity and product group
Grade) it is very sensitive, cladding polymethacrylates is further modified by carrying out surface to aluminium powder, further can effectively be prevented
Only it is oxidized, so that aluminium powder is used for 3D printing manufacture and has high fluidity and good heat bonding mouldability, mechanical property is excellent
It is good.
Embodiment
Embodiment 1
A kind of 3D printing aluminium powder, including：Grenaille is first ground into a diameter of 1.75mm aluminium powder ball through ball mill, then led to
Cross the aluminium powder of absorption and chemical reaction cladding polymethyl methacrylate；
Specifically preparation method is：
(1) under nitrogen protection, by Grenaille in ball mill ball milling, be ground into tiny aluminium powder, a diameter of 1.75mm, ball
Consume time as 5h.
(2) aluminium powder obtained takes 60 parts by weight, the parts by weight of methacrylate 0.5, the weight of lauryl sodium sulfate 0.01
Part, the parts by weight of ammonium persulfate 3 add reaction mixer, and adjust pH value to 9, are passed through nitrogen to reaction mixer, temperature rises to
60 DEG C, scattered 25 minutes with 500rpm high-speed stirred, reaction terminates.
(3) drying product is put into apparatus,Soxhlet's and uses acetone surname extraction 24h, solution decompression is filtrated to get poly-
Methacrylate coats aluminum particle, a kind of aluminium powder for 3D printing.
Embodiment 2
Grenaille, is first ground into a diameter of 3mm aluminium powder ball by a kind of 3D printing aluminium powder through ball mill, then by absorption and
The aluminium powder of chemical reaction cladding polymethyl methacrylate；
Specifically preparation method is：
(1) under nitrogen protection, by Grenaille in ball mill ball milling, be ground into tiny aluminium powder, a diameter of 3mm, ball milling
Time is 3h.
(2) aluminium powder obtained takes 70 parts by weight, the parts by weight of methacrylate 1.0, the weight of lauryl sodium sulfate 0.4
Part, the parts by weight of ammonium persulfate 5 add reaction mixer, and adjust pH value to 9, are passed through nitrogen to reaction mixer, temperature rises to
70 DEG C, scattered 30 minutes with 800rpm high-speed stirred, reaction terminates.
(3) drying product is put into apparatus,Soxhlet's and uses acetone surname extraction 24h, solution decompression is filtrated to get poly-
Methacrylate coats aluminum particle, a kind of aluminium powder for 3D printing.
The embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.That is made within the spirit and principles of the invention is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (2)
1. a kind of 3D printing aluminium powder, it is characterised in that：Grenaille is first ground into a diameter of 150-200nm aluminium powder through ball mill
Ball, then the aluminium powder of polymethyl methacrylate is coated by adsorbing and chemically reacting,
Its specific preparation method is：
(1) under nitrogen protection, by Grenaille in ball mill ball milling, be ground into tiny aluminium powder, a diameter of 150-200nm, ball
Consume time as 3-5h；The diameter grinding that aluminium powder is obtained is to 150-200nm.
(2) aluminium powder obtained takes 60-70 parts by weight, methacrylate 0.5-1.0 parts by weight, lauryl sodium sulfate 0.01-
0.4 parts by weight, ammonium persulfate 3-5 parts by weight add reaction mixer, and adjust pH value to 9, and nitrogen is passed through to reaction mixer,
Temperature rises to 60-70 DEG C, and scattered 25-30 minutes with 500-800rpm high-speed stirred, reaction terminates.
(3) drying product is put into apparatus,Soxhlet's and uses acetone surname extraction 24h, solution decompression is filtrated to get poly- methyl
Acrylate coats aluminum particle, a kind of aluminium powder for 3D printing.
2. a kind of preparation method of 3D printing material, it is characterised in that：Specifically preparation method is：
(1) under nitrogen protection, by Grenaille in ball mill ball milling, be ground into tiny aluminium powder, a diameter of 150-200nm, ball
Consume time as 3-5h.
(2) aluminium powder obtained takes 60-70 parts by weight, methacrylate 0.5-1.0 parts by weight, lauryl sodium sulfate 0.01-
0.4 parts by weight, ammonium persulfate 3-5 parts by weight add reaction mixer, and adjust pH value to 9, and nitrogen is passed through to reaction mixer,
Temperature rises to 60-70 DEG C, and scattered 25-30 minutes with 500-800rpm high-speed stirred, reaction terminates.
(3) drying product is put into apparatus,Soxhlet's and uses acetone surname extraction 24h, solution decompression is filtrated to get poly- methyl
Acrylate coats aluminum particle, a kind of aluminium powder for 3D printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329671.6A CN107199343A (en) | 2017-05-11 | 2017-05-11 | A kind of 3D printing aluminium powder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329671.6A CN107199343A (en) | 2017-05-11 | 2017-05-11 | A kind of 3D printing aluminium powder and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107199343A true CN107199343A (en) | 2017-09-26 |
Family
ID=59905800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710329671.6A Pending CN107199343A (en) | 2017-05-11 | 2017-05-11 | A kind of 3D printing aluminium powder and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107199343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356261A (en) * | 2018-04-12 | 2018-08-03 | 泰州润杰物流安全装备科技有限公司 | A kind of powder body material and preparation method for alusil alloy 3D printing |
| CN112045195A (en) * | 2020-08-10 | 2020-12-08 | 广州有研粉体材料科技有限公司 | Metal powder for 3D printing and metal powder surface nano-modification method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002051922A2 (en) * | 2000-12-15 | 2002-07-04 | Ucb, S.A. | Powder coating compositions containing reactive nanoparticles |
| CN104668552A (en) * | 2015-01-30 | 2015-06-03 | 成都新柯力化工科技有限公司 | Aluminum powder for 3D (three-dimensional) printing and preparation method of aluminum powder |
-
2017
- 2017-05-11 CN CN201710329671.6A patent/CN107199343A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002051922A2 (en) * | 2000-12-15 | 2002-07-04 | Ucb, S.A. | Powder coating compositions containing reactive nanoparticles |
| CN104668552A (en) * | 2015-01-30 | 2015-06-03 | 成都新柯力化工科技有限公司 | Aluminum powder for 3D (three-dimensional) printing and preparation method of aluminum powder |
Non-Patent Citations (2)
| Title |
|---|
| 刘辉等: "PMMA/Al 复合粒子的制备及其热特性研究", 《武汉理大学学报》 * |
| 吴垠等: "金色闪光铝粉颜料的制备研究", 《材料科学与工程学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356261A (en) * | 2018-04-12 | 2018-08-03 | 泰州润杰物流安全装备科技有限公司 | A kind of powder body material and preparation method for alusil alloy 3D printing |
| CN112045195A (en) * | 2020-08-10 | 2020-12-08 | 广州有研粉体材料科技有限公司 | Metal powder for 3D printing and metal powder surface nano-modification method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170926 |
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| RJ01 | Rejection of invention patent application after publication |