CN110523976A - A kind of thin-film material and its production technology for metal 3D printing - Google Patents
A kind of thin-film material and its production technology for metal 3D printing Download PDFInfo
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- CN110523976A CN110523976A CN201910873753.6A CN201910873753A CN110523976A CN 110523976 A CN110523976 A CN 110523976A CN 201910873753 A CN201910873753 A CN 201910873753A CN 110523976 A CN110523976 A CN 110523976A
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- film
- metal
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- printing
- powder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
Abstract
The present invention discloses a kind of thin-film material and its production technology for metal 3D printing, the thin-film material for metal 3D printing includes: the release paper as carrier, the printed material film layer that is set in the release paper and the transparent release film being covered in the printed material film layer, which includes metal powder and photosensitive resin.The production technology of thin-film material for metal 3D printing are as follows: by mass ratio be 70-99%wt metal powder and mass ratio be 1-30%wt photosensitive resin be put into planet mixing kettle and uniformly mix, the slurry that viscosity is suitable for coating is made after three-roll grinder, when viscosity is excessive, solvent or diluent adjustment is added；Then use accurate coating equipment that slurry is coated a layer thickness by spin coating or blade coating or roll coating model in release paper as 10-50 μm of wet film again, and the viscous dry film in surface is obtained after the drying, and table covers layer of transparent release film on dry film, finally slice or baling form the thin-film material for being used for metal 3D printing.
Description
Technical field:
The present invention relates to metal 3D printing technique field, a kind of thin-film material for metal 3D printing and its production are refered in particular to
Technique.
Background technique:
Metal 3D printing has been deep into each application field, including automobile, electronics, medical treatment, aerospace etc., printing device
It is in printed material in continuing to develop and being promoted.
The metal powder metal 3D printing thin-film material most wide as purposes is suitable for laser sintered (SLM), binder sprays
It penetrates in apparatus and process such as (3DP)；Wire is suitable for electron beam melting (EBM)；Wire rod containing cementing metal is suitable for melting and squeezes
(FDM) technique out.In actual use, the filling of metal-powder, the removing and recycling of powder are inevitable in green part,
The application of metal-powder there are the risk that dust pollution and dust fire, although device manufacturer and user use explosion-proof electric apparatus,
The measures such as closed container and inert gas shielding, but still hidden danger cannot be completely eliminated, and lead to direct cost and management cost
Increase, the printing of wire switchs to solid-state form molding by high-temperature fusion with liquid, and formed precision is poor, is not appropriate for precision
The requirement of component, the printing of wire rod containing cementing metal is by high-temperature fusion extrusion way, and precision is also poor, is also not suitable for precision
The requirement of component.
Therefore, market needs a kind of safety and environmental protection and is able to achieve high-precision metal 3D printing thin-film material, the present inventor
It is proposed following technical scheme.
Summary of the invention:
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of thin-film material for metal 3D printing and
Its production technology.
In order to solve the above-mentioned technical problem, present invention employs the first following technical solutions: this is used for metal 3D printing
Thin-film material include: the release paper as carrier, the printed material film layer that is set in the release paper and be covered in this dozen
Print the transparent release film in film layer, wherein the printed material film layer includes metal powder and photosensitive resin.
Furthermore, in above-mentioned technical proposal, the mass ratio of the metal powder is 70-99%wt；The photosensitive tree
The mass ratio of rouge is 1-30%wt.
Furthermore, in above-mentioned technical proposal, the printed material film layer with a thickness of 10-50 μm；It is described it is transparent from
Type film with a thickness of 9-25 μm, off-type force 3-35g/cm2。
Furthermore, in above-mentioned technical proposal, the solidification wave-length coverage of the printed material film layer in 192-450nm,
By wavelength be 192-450nm light irradiate sclerosis molding, non-light part 40-120 DEG C at a temperature of become removable
Dynamic paste.
Furthermore, in above-mentioned technical proposal, the metal powder be iron-based powder, Al alloy powder, Cu-base powder,
Any one in titanium alloy powder, superalloy powder, partial size is at 5-50 μm.
Furthermore, in above-mentioned technical proposal, the photosensitive resin is free radical system, cationic system or mixture
One of system.
It furthermore, is oligomer and/or monomer in the free radical system, wherein oligomeric in above-mentioned technical proposal
Object be one of urethane acrylate, epoxy acrylate, polymethacrylates, polyester acrylate or more than one
Combination, the monomer is single official's acrylate；The cationic system includes epoxy resin and reactive diluent and cation
Photoinitiator and sensitizer.
In order to solve the above-mentioned technical problem, present invention employs following second of technical solutions: this is used for metal 3D printing
Thin-film material production technology are as follows: by mass ratio be 70-99%wt metal powder and mass ratio be the photosensitive of 1-30%wt
Resin is put into planet mixing kettle and uniformly mixes, and the slurry that viscosity is suitable for coating is made after three-roll grinder, when viscosity is excessive
When, solvent or diluent adjustment is added；Then slurry is passed through by spin coating or blade coating in release paper using accurate coating equipment again
Or roll coating model coats a layer thickness and is 10-50 μm of wet film, and obtains the viscous dry film in surface after the drying, and on dry film
Table covers layer of transparent release film, finally slice or baling, forms the thin-film material for being used for metal 3D printing.
Furthermore, in above-mentioned technical proposal, the production technology are as follows: weigh 100g polyethyleneglycol diacrylate, 3g
Free radical photo-initiation TPO, 0.5g cause auxiliary agent B P, and above-mentioned raw materials are put into planet mixing kettle by 0.5g coupling agent KH-550
Moderate-speed mixer under room temperature after mixing, until uniform liquid, lasting to stir；Weighing 900g partial size again is 10um and in atomized powder shape
Iron powder, and iron powder is slowly added in liquid, it is sufficiently mixed, adds 30g butyl acetate, ground by three rollers
The slurry that viscosity is suitable for coating is made in machine；The slurry is passed through by spin coating or blade coating or roller in release paper using accurate coating equipment
Painting mode coats a layer thickness and is 10-50 μm of wet film, and obtains the viscous dry film in surface after the drying, and table covers on dry film
Layer of transparent release film, finally slice or baling, forms iron-based powder 3D printing thin-film material.
Furthermore, in above-mentioned technical proposal, the production technology are as follows: weigh 100g epoxy resin 2021P, 3g cation
Above-mentioned raw materials are put into planet mixing kettle and mix by photoinitiator CPI-210S, 0.2g photosensitizer ITX, 0.5g coupling agent KH-550
Moderate-speed mixer under room temperature after conjunction, until uniform liquid, lasting to stir；900g partial size is weighed again to be 12um and be in the aluminium of atomized powder shape
Alloyed powder, and Al alloy powder is slowly added in liquid, it is sufficiently mixed, 30g butyl acetate is added, by three
The slurry that viscosity is suitable for coating is made in roller mill；The slurry by spin coating or is scraped in release paper using accurate coating equipment
It applies or roll coating model coats a layer thickness and is 10-50 μm of wet film, and obtain the viscous dry film in surface after the drying, and on dry film
Face table covers layer of transparent release film, finally slice or baling, forms Al alloy powder 3D printing thin-film material.
After adopting the above technical scheme, compared with prior art, the present invention has the following advantages:
1, when in use, the release paper on the first sheet film materials is shelled for the thin-film material that the present invention is used for metal 3D printing
From and be fixed on the support plate of 3D printer, and formed by illumination curing, then will be transparent release on the first sheet film materials
Film removes, and leaves printed material film layer；Release paper on second sheet film materials is removed and is covered in the first sheet film materials
Printed material film layer on, and by illumination curing form, then by the second sheet film materials transparent release film remove；In this way
It is layering, finally obtains an entity, this entity is put into baking oven or solvent, remove the solid part of non-light and recycle, needed
The green compact metal solid wanted, green compact metal solid obtain the metal solid of 3D printing by sintering, improve existing metal 3D with this
The safety and the feature of environmental protection of printing, the i.e. present invention are a kind of safety and environmental protection and are able to achieve high-precision metal 3D printing film material
Material, and there is the extremely strong market competitiveness.
2, the present invention is simple for the production craft step of the thin-film material of metal 3D printing, and operates simply, and science is closed
Reason, and a kind of safety and environmental protection can be made and be able to achieve high-precision metal 3D printing thin-film material, with competing with extremely strong market
Strive power.
Detailed description of the invention:
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment:
The present invention is further described with attached drawing combined with specific embodiments below.
As shown in Figure 1, the present invention is a kind of thin-film material for metal 3D printing, can be sheet, is also possible to
Web-like comprising: as the release paper 1 of carrier, the printed material film layer 2 that is set in the release paper 1 and it is covered in this dozen
Print the transparent release film 3 in film layer 2, wherein the printed material film layer 2 includes metal powder and photosensitive resin.This
Invention is used for the thin-film material of metal 3D printing when in use, and the release paper on the first sheet film materials is removed and is fixed on 3D
It on the support plate of printer, and is formed, then the transparent release film 3 on the first sheet film materials is removed, is left by illumination curing
Printed material film layer；Release paper on second sheet film materials is removed to and is covered in the printed material film of the first sheet film materials
On layer, and formed by illumination curing, then the transparent release film 3 on the second sheet film materials is removed；It is layering in this way, most
After obtain an entity, this entity is put into baking oven or solvent, the solid part of non-light is removed and simultaneously recycles, the green compact metal needed
Entity, green compact metal solid are obtained the metal solid of 3D printing by sintering, are improved the safety of existing metal 3D printing with this
And the feature of environmental protection, i.e., the present invention is a kind of safety and environmental protection and is able to achieve high-precision metal 3D printing thin-film material, and is had extremely strong
The market competitiveness.
The release paper 1 functions as the carrier in production process, need to remove in advance in 3D printing；The printing material
Material film layer 2 is one layer and is filled in the film formed in photosensitive resin material by metal powder, which has good film forming,
Also there is good self-adhesion, be suitable for increasing material manufacturing；The transparent release film 3 is transparent PET weight release film, in 3D printing
For oxygen inhibition protective layer, once exposure is completed to remove, to print new one layer.
The mass ratio of the metal powder is 70-99%wt；The mass ratio of the photosensitive resin is 1-30%wt.
The printed material film layer 2 with a thickness of 10-50 μm；The transparent release film with a thickness of 9-25 μm, off-type force
3-35g/cm2。
The solidification wave-length coverage of the printed material film layer 2 is in 192-450nm, by the light that wavelength is 192-450nm (such as purple
Outer light) irradiation sclerosis molding, non-light part 40-120 DEG C at a temperature of become removable paste, so as to the later period
Recycling, reaches environmentally friendly effect.
The metal powder is iron-based powder, in Al alloy powder, Cu-base powder, titanium alloy powder, superalloy powder
Any one, partial size at 5-50 μm, can be atomized powder or carbonyl dust or reduction powder, which can
Activation or cladding processing are done, powder particle shape is uniform, is preferred with subsphaeroidal, and homogeneous texture facilitates the controllable shape of thermal sintering
Become.
The photosensitive resin is one of free radical system, cationic system or mixed system.The free radical system
In be oligomer and/or monomer, wherein oligomer be urethane acrylate, epoxy acrylate, polymethacrylates,
One of polyester acrylate or more than one combination, the monomer are single official's acrylate；The cationic system packet
Include epoxy resin and reactive diluent and cation light initiator and sensitizer.Two or more suitable more official's acrylic acid
Ester, such as polyethyleneglycol diacrylate, tri methylol triacrylate, five acrylate of pentaerythrite.Photoinitiator according to
The different initiators for selecting light abstraction widths in 192-450nm of light source, one of model 184,819, TPO；Additive
Including at least one of levelling agent, defoaming agent, antioxidant, dyestuff.
In conclusion the present invention is used for the thin-film material of metal 3D printing when in use, it will be on the first sheet film materials
Release paper is removed and is fixed on the support plate of 3D printer, and is formed by illumination curing, then will be on the first sheet film materials
Transparent release film 3 removes, and leaves printed material film layer；Release paper on second sheet film materials is removed and is covered in first
In the printed material film layer of thin-film material, and formed by illumination curing, then by the transparent release film 3 on the second sheet film materials
It removes；It is layering in this way, finally obtains an entity, this entity is put into baking oven or solvent, remove the solid part of non-light and return
It receives, the green compact metal solid needed, green compact metal solid obtains the metal solid of 3D printing by sintering, is improved with this existing
There are the safety and the feature of environmental protection of metal 3D printing, i.e. the present invention is a kind of safety and environmental protection and is able to achieve high-precision metal 3D printing
Thin-film material, and there is the extremely strong market competitiveness.
The present invention is a kind of production technology of thin-film material for metal 3D printing, the production technology are as follows: by mass ratio
The photosensitive resin that metal powder and mass ratio for 70-99%wt are 1-30%wt, which is put into planet mixing kettle, uniformly to be mixed, then
It crosses three-roll grinder and the slurry that viscosity is suitable for coating is made, when viscosity is excessive, solvent or diluent adjustment is added；Then it adopts again
It is 10-50 μm that slurry, which is coated a layer thickness by spin coating or blade coating or roll coating model in release paper, with accurate coating equipment
Wet film, and the viscous dry film in surface is obtained after the drying, and table covers layer of transparent release film on dry film, it is finally sliced or coiled
Packaging forms the thin-film material for being used for metal 3D printing.Production technology step of the present invention for the thin-film material of metal 3D printing
It is rapid simple, and operate it is simple, it is scientific and reasonable, and a kind of safety and environmental protection can be made and be able to achieve high-precision metal 3D printing film
Material, with the extremely strong market competitiveness.
Embodiment one:
100g polyethylene glycol 400 diacrylate is weighed, 3g free radical photo-initiation TPO, 0.5g cause auxiliary agent B P, 0.5g
Above-mentioned raw materials are put into after mixing in planet mixing kettle moderate-speed mixer under room temperature, until uniform liquid, is persistently stirred by coupling agent KH-550
It mixes；900g partial size is weighed again to be 10um and be in the iron powder of atomized powder shape, and iron powder is slowly added in liquid, is sufficiently mixed,
30g butyl acetate is added, the slurry that viscosity is suitable for coating is made by three-roll grinder；It is coated using precision
The slurry is coated the wet film that a layer thickness is 10-50 μm by spin coating or blade coating or roll coating model in release paper by equipment, and
The viscous dry film in surface is obtained after the drying, and table covers layer of transparent release film on dry film, finally slice or baling, shape
At iron-based powder 3D printing thin-film material.Wherein, it is packaged with black plastic bag spare.
Embodiment two:
Weigh 100g epoxy resin 2021P, 3g cation light initiator CPI-210S, 0.2g photosensitizer ITX, 0.5g coupling
Above-mentioned raw materials are put into after mixing in planet mixing kettle moderate-speed mixer under room temperature by agent KH-550, until uniform liquid, lasting to stir；
900g partial size is weighed again to be 12um and be in the Al alloy powder of atomized powder shape, and Al alloy powder is slowly added in liquid, sufficiently
Mixing, adds 30g butyl acetate, and the slurry that viscosity is suitable for coating is made by three-roll grinder；Using essence
It is 10-50 μm wet that the slurry is coated a layer thickness by spin coating or blade coating or roll coating model in release paper by close coating equipment
Film, and the viscous dry film in surface is obtained after the drying, and table covers layer of transparent release film on dry film, finally slice or in rolls packet
Dress forms Al alloy powder 3D printing thin-film material.Wherein, it is packaged with black plastic bag spare.
Certainly, the above is only a specific embodiment of the present invention, be not to limit the scope of the present invention, it is all according to
The equivalent change or modification that structure, feature and principle described in scope of the present invention patent is done should be included in Shen of the present invention
It please be in the scope of the patents.
Claims (10)
1. a kind of thin-film material for metal 3D printing, it is characterised in that: comprising: release paper (1), setting as carrier
In the printed material film layer (2) in the release paper (1) and the transparent release film (3) being covered in the printed material film layer (2),
Wherein, the printed material film layer (2) includes metal powder and photosensitive resin.
2. a kind of thin-film material for metal 3D printing according to claim 1, it is characterised in that: the metal powder
Mass ratio be 70-99%wt；The mass ratio of the photosensitive resin is 1-30%wt.
3. a kind of thin-film material for metal 3D printing according to claim 2, it is characterised in that: the printed material
Film layer (2) with a thickness of 10-50 μm；The transparent release film with a thickness of 9-25 μm, off-type force 3-35g/cm2。
4. a kind of thin-film material for metal 3D printing according to claim 2, it is characterised in that: the printed material
The solidification wave-length coverage of film layer (2) is formed by the sclerosis that the light that wavelength is 192-450nm irradiates in 192-450nm, not by
Light part 40-120 DEG C at a temperature of become removable paste.
5. a kind of thin-film material for metal 3D printing according to claim 2, it is characterised in that: the metal powder
For any one in iron-based powder, Al alloy powder, Cu-base powder, titanium alloy powder, superalloy powder, partial size is in 5-
50μm。
6. a kind of thin-film material for metal 3D printing according to claim 2, it is characterised in that: the photosensitive resin
For one of free radical system, cationic system or mixed system.
7. a kind of thin-film material for metal 3D printing according to claim 6, it is characterised in that: the free matrix
It is oligomer and/or monomer in system, wherein oligomer is urethane acrylate, epoxy acrylate, polymethylacrylic acid
One of ester, polyester acrylate or more than one combination, the monomer are single official's acrylate；The cationic system
Including epoxy resin and reactive diluent and cation light initiator and sensitizer.
8. a kind of production technology of the thin-film material for metal 3D printing, it is characterised in that: the production technology are as follows: by mass ratio
The photosensitive resin that metal powder and mass ratio for 70-99%wt are 1-30%wt, which is put into planet mixing kettle, uniformly to be mixed, then
It crosses three-roll grinder and the slurry that viscosity is suitable for coating is made, when viscosity is excessive, solvent or diluent adjustment is added；Then it adopts again
It is 10-50 μm that slurry, which is coated a layer thickness by spin coating or blade coating or roll coating model in release paper, with accurate coating equipment
Wet film, and the viscous dry film in surface is obtained after the drying, and table covers layer of transparent release film on dry film, it is finally sliced or coiled
Packaging forms the thin-film material for being used for metal 3D printing.
9. a kind of production technology of thin-film material for metal 3D printing according to claim 8, it is characterised in that: should
Production technology are as follows: weigh 100g polyethylene glycol (400) diacrylate, 3g free radical photo-initiation TPO, 0.5g cause auxiliary agent
Above-mentioned raw materials are put into after mixing in planet mixing kettle moderate-speed mixer under room temperature, until uniform liquid by BP, 0.5g coupling agent KH-550
Body, it is lasting to stir；900g partial size is weighed again to be 10um and be in the iron powder of atomized powder shape, and iron powder is slowly added in liquid,
It is sufficiently mixed, adds 30g butyl acetate, the slurry that viscosity is suitable for coating is made by three-roll grinder；It adopts
It is 10-50 μm that the slurry, which is coated a layer thickness by spin coating or blade coating or roll coating model in release paper, with accurate coating equipment
Wet film, and obtain the viscous dry film in surface after the drying, and table covers layer of transparent release film on dry film, finally slice or at
Coil packing forms iron-based powder 3D printing thin-film material.
10. a kind of production technology of thin-film material for metal 3D printing according to claim 8, it is characterised in that:
The production technology are as follows: weigh 100g epoxy resin 2021P, 3g cation light initiator CPI-210S, 0.2g photosensitizer ITX,
Above-mentioned raw materials are put into after mixing in planet mixing kettle moderate-speed mixer under room temperature, until uniform liquid, holds by 0.5g coupling agent KH-550
Continuous stirring；900g partial size is weighed again to be 12um and be in the Al alloy powder of atomized powder shape, and Al alloy powder is slowly added to liquid
In, it is sufficiently mixed, adds 30g butyl acetate, the slurry that viscosity is suitable for coating is made by three-roll grinder；
Use accurate coating equipment that the slurry is coated a layer thickness by spin coating or blade coating or roll coating model in release paper as 10-50
μm wet film, and obtain the viscous dry film in surface after the drying, and table covers layer of transparent release film on dry film, finally slice or
Baling forms Al alloy powder 3D printing thin-film material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113695590A (en) * | 2021-08-06 | 2021-11-26 | 宿迁学院 | Layer-by-layer stacking forming method for low-boiling-point two-dimensional material |
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| CN113695590A (en) * | 2021-08-06 | 2021-11-26 | 宿迁学院 | Layer-by-layer stacking forming method for low-boiling-point two-dimensional material |
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| CN110523976B (en) | 2022-01-18 |
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