CN115815619A - Binder for binder injection additive manufacturing nickel-based alloy and preparation method and application thereof - Google Patents
Binder for binder injection additive manufacturing nickel-based alloy and preparation method and application thereof Download PDFInfo
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- CN115815619A CN115815619A CN202211617078.9A CN202211617078A CN115815619A CN 115815619 A CN115815619 A CN 115815619A CN 202211617078 A CN202211617078 A CN 202211617078A CN 115815619 A CN115815619 A CN 115815619A
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- binder
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- graphene
- additive manufacturing
- based alloy
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000011230 binding agent Substances 0.000 title claims abstract description 51
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 38
- 239000000956 alloy Substances 0.000 title claims abstract description 38
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000000654 additive Substances 0.000 title claims abstract description 22
- 230000000996 additive effect Effects 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 title claims abstract description 7
- 239000007924 injection Substances 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 46
- 239000002245 particle Substances 0.000 claims abstract description 36
- 239000002904 solvent Substances 0.000 claims abstract description 25
- 239000004094 surface-active agent Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000006185 dispersion Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims description 23
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 19
- 238000005238 degreasing Methods 0.000 claims description 17
- 238000005245 sintering Methods 0.000 claims description 17
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 12
- 238000007639 printing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 4
- HGPXWXLYXNVULB-UHFFFAOYSA-M lithium stearate Chemical compound [Li+].CCCCCCCCCCCCCCCCCC([O-])=O HGPXWXLYXNVULB-UHFFFAOYSA-M 0.000 claims description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 4
- 239000008117 stearic acid Substances 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Powder Metallurgy (AREA)
Abstract
The invention discloses a binder for binder injection additive manufacturing of a nickel-based alloy, which comprises the following components in percentage by mass: 10 to 20 percent of hydrophilic solvent, 3 to 10 percent of surfactant, 0.5 to 2 percent of graphene particles and 70 to 85 percent of water; the preparation method comprises the following steps: firstly, uniformly mixing graphene particles with water to obtain a graphene dispersion liquid; then uniformly mixing the hydrophilic solvent and the graphene dispersion liquid to obtain a mixed solution; finally, uniformly mixing the surfactant and the mixed solution to obtain the binder; the graphene particles are introduced into the binder and used for the binder injection additive manufacturing of the nickel-based alloy, so that the gaps of the nickel-based alloy are filled, the compactness of the nickel-based alloy is improved, the graphene particles can refine grains, and the mechanical property of the nickel-based alloy is further improved.
Description
Technical Field
The invention relates to a binder, in particular to a binder for binder injection additive manufacturing of a nickel-based alloy, and a preparation method and application thereof.
Background
The additive manufacturing is different from the traditional manufacturing process, is based on the principle of 'discrete-accumulation', adopts the technology of forming parts by adopting a material gradual accumulation method under the guidance of a computer according to the three-dimensional model data of part design, and has the advantages of forming complex parts, short manufacturing period, no need of additionally designing a die and a clamp and the like.
The Binder Jet Additive Manufacturing (BJAM) technology is that according to each layer of data sliced by a three-dimensional model of a part, a binder is jetted on a powder bed layer by layer through an ink jet printing head, the powder is bonded together to form a part primary blank after solidification, and then the part is degreased and sintered to form a densified part. Compared with powder bed melting (PBF) and Direct Energy Deposition (DED) technologies, the method has the advantages of low cost, high efficiency, wide material range, excellent surface, no need of a support structure and the like, but also has the disadvantages of insufficient compactness of formed parts and lower mechanical performance.
The nickel-based alloy has good stability of the structure at high temperature, excellent high-temperature mechanical property and corrosion resistance, and can be widely applied to the special fields of aerospace, chemical engineering and the like.
At present, researchers have studied different layer thicknesses and sintering temperatures in the aspect of forming processes for forming nickel-based alloys by using a Binder Jet Additive Manufacturing (BJAM) technology, but the prepared parts still have difficulty in obtaining sufficient compactness and higher mechanical properties.
Disclosure of Invention
The purpose of the invention is as follows: the first purpose of the invention is to provide a binder for binder injection additive manufacturing of nickel-base alloy, which improves the compactness and mechanical property of the nickel-base alloy; the second purpose of the invention is to provide a preparation method of the adhesive; a third object of the invention is to provide the use of said binder.
The technical scheme is as follows: the invention discloses a binder for binder-jet additive manufacturing of a nickel-based alloy, which comprises the following components in percentage by mass: 10 to 20 percent of hydrophilic solvent, 3 to 10 percent of surfactant, 0.5 to 2 percent of graphene particles and 70 to 85 percent of water.
Preferably, the thickness of the graphene particles is 1-10 nm, and the sheet diameter of the graphene is 1-10 μm.
Preferably, the hydrophilic solvent is one or two of ethylene glycol monomethyl ether and diethylene glycol.
Preferably, the surfactant is one or more of stearic acid, zinc stearate and lithium stearate.
The preparation method of the adhesive comprises the following steps:
(1) Firstly, uniformly mixing graphene particles with water to obtain a graphene dispersion liquid;
(2) Then uniformly mixing the hydrophilic solvent and the graphene dispersion liquid to obtain a mixed solution;
(3) And (3) finally, uniformly mixing the surfactant with the mixed solution obtained in the step (2) to obtain the binder.
Preferably, the mixing temperature in the steps (1) to (3) is 15 to 25 ℃.
The binder disclosed by the invention is applied to binder-jet additive manufacturing of the nickel-based alloy.
The application method comprises the following steps: adding the binder into binder jet additive manufacturing equipment, printing nickel alloy powder, heating the nickel alloy powder to 80-90 ℃ in an oven to solidify the nickel alloy powder after the printing is finished, and then degreasing and sintering the nickel alloy powder in vacuum to obtain the nickel-based alloy part.
Preferably, the nickel alloy powder comprises Ni718 or Ni625, the particles are spherical, and the average particle diameter is 50-80 μm; when printing, the layer thickness is set to be 0.1 mm-0.2 mm.
With the completion of the degreasing process, the hydrophilic solvent, the surfactant, the water and the like except the graphene in the binder are completely volatilized, and the finally formed nickel-based alloy is not affected. Preferably, the degreasing temperature is 380-400 ℃, and the degreasing time is 4-5 h.
Preferably, the sintering temperature is 1280-1300 ℃, and the sintering time is 3-4 h.
The invention mechanism is as follows: graphene is a carbon atom in sp 2 The hybridized and connected crystal with the monoatomic layer two-dimensional honeycomb structure has various excellent performances. Graphene has extremely high thermal stability, excellent strength and toughness. The graphene particles are added into the binder, a hydrophilic solvent, a surfactant, water and the like in the binder volatilize in the degreasing process, the graphene particles with extremely high thermal stability and excellent strength and toughness can be remained in the nickel-based alloy powder, gaps of the nickel-based alloy can be filled in the subsequent sintering process, the density of the nickel-based alloy is improved, the graphene particles can refine grains, and the mechanical property of the nickel-based alloy is further improved.
Has the beneficial effects that: compared with the prior art, the invention has the following remarkable advantages: (1) The graphene particles are introduced into the binder and used for the binder to spray additive manufacturing of the nickel-based alloy, so that the gaps of the nickel-based alloy are filled, the compactness of the nickel-based alloy is improved, and the graphene particles can refine crystal grains, so that the mechanical property of the nickel-based alloy is further improved; (2) The components of the adhesive are widely available and low in price, and the water-based adhesive is used as a main component of the adhesive, so that the adhesive is green, environment-friendly and pollution-free.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1
The binder for the binder-jet additive manufacturing of the nickel-base alloy comprises the following components in percentage by mass: 15% of a hydrophilic solvent, 4.5% of a surfactant, 0.5% of graphene particles and 80% of a pure water solvent; wherein the thickness of the graphene particles is 5nm, and the sheet diameter is 5 μm; the hydrophilic solvent is selected from ethylene glycol monomethyl ether with the density of 0.998g/ml; the surfactant is selected from stearic acid and has a density of 0.84g/ml.
The preparation method of the adhesive comprises the following steps:
(1) Firstly, uniformly mixing 0.5% of graphene particles and 80% of pure water by mass at 20 ℃ to obtain a graphene dispersion liquid;
(2) Then uniformly mixing a hydrophilic solvent accounting for 15% of the mass of the graphene dispersion liquid at 20 ℃ to obtain a mixed solution; wherein the hydrophilic solvent is ethylene glycol monomethyl ether;
(3) Finally, uniformly mixing the surfactant with the mass ratio of 4.5% and the mixed solution at 20 ℃ to obtain a water-based binder solution; wherein the surfactant is stearic acid.
The application comprises the following steps:
adding the prepared binder into binder jet additive manufacturing equipment, printing nickel alloy powder, wherein the thickness of the layer is set to be 0.15mm, heating the nickel alloy powder to 80 ℃ in an oven after printing, keeping the temperature for 3 hours for curing, then carrying out degreasing and sintering treatment under vacuum, wherein the degreasing and sintering temperatures are 380 ℃ and 1280 ℃ respectively, and the degreasing and sintering times are 4 hours and 3 hours respectively, so as to obtain the No. 1 graphene dispersion strengthened nickel-based alloy part. Wherein the nickel alloy powder is Ni718, the particles are spherical, and the average particle size is 60 mu m.
Example 2
The binder for the binder-jet additive manufacturing of the nickel-base alloy comprises the following components in percentage by mass: 20% of a hydrophilic solvent, 3% of a surfactant, 1% of graphene particles and 76% of a pure water solvent; wherein the thickness of the graphene particles is 1nm, and the sheet diameter is 1 μm; the hydrophilic solvent is selected from diethylene glycol with the density of 1.12g/ml; the surfactant is selected from zinc stearate, and the density is 1.1g/ml.
The preparation method of the adhesive comprises the following steps:
(1) Firstly, uniformly mixing 1% of graphene particles and 75% of water-based adhesive at 20 ℃ to obtain graphene dispersion liquid;
(2) Then uniformly mixing the hydrophilic solvent accounting for 20% of the mass with the graphene dispersion liquid at 20 ℃ to obtain a mixed solution; wherein the hydrophilic solvent is diethylene glycol;
(3) Finally, uniformly mixing the surfactant accounting for 4% of the mass of the mixture and the mixed solution at 20 ℃ to obtain a water-based binder solution; wherein the surfactant is zinc stearate.
The application comprises the following steps:
adding the prepared binder into binder jet additive manufacturing equipment, printing nickel alloy powder, wherein the thickness of the layer is set to be 0.15mm, heating the nickel alloy powder to 80 ℃ in an oven after printing, keeping the temperature for 3 hours for curing, then carrying out degreasing and sintering treatment under vacuum, wherein the degreasing and sintering temperatures are 380 ℃ and 1280 ℃ respectively, and the degreasing and sintering times are 4 hours and 3 hours respectively, so as to obtain a 2# graphene dispersion strengthened nickel-based alloy part. Wherein the nickel alloy powder is Ni718, the particles are spherical, and the average particle size is 50 mu m.
Example 3
The binder for the binder-jet additive manufacturing of the nickel-base alloy comprises the following components in percentage by mass: 10% of a hydrophilic solvent, 10% of a surfactant, 2% of graphene particles and 78% of a pure water solvent; wherein the thickness of the graphene particles is 10nm, and the sheet diameter is 10 μm; the hydrophilic solvent is selected from ethylene glycol monomethyl ether with the density of 0.998g/ml; the surfactant is selected from lithium stearate, and the density is 1.025g/ml.
The preparation method of the adhesive comprises the following steps:
(1) Firstly, uniformly mixing 0.5 mass percent of graphene particles and 85 mass percent of water-based adhesive at 20 ℃ to obtain graphene dispersion liquid;
(2) Then uniformly mixing a hydrophilic solvent accounting for 10% of the mass of the graphene dispersion liquid at 20 ℃ to obtain a mixed solution; wherein the hydrophilic solvent is ethylene glycol monomethyl ether;
(3) Finally, uniformly mixing the surfactant with the mass ratio of 4.5% and the mixed solution at 20 ℃ to obtain a water-based binder solution; wherein the surfactant is lithium stearate.
The application comprises the following steps:
adding the prepared binder into binder jet additive manufacturing equipment, printing nickel alloy powder, wherein the thickness of the layer is set to be 0.15mm, heating the nickel alloy powder to 80 ℃ in an oven after printing, keeping the temperature for 3 hours for curing, then carrying out degreasing and sintering treatment under vacuum, wherein the degreasing and sintering temperatures are 380 ℃ and 1280 ℃ respectively, and the degreasing and sintering times are 4 hours and 3 hours respectively, so as to obtain a 3# graphene dispersion strengthened nickel-based alloy part. Wherein the nickel alloy powder is Ni625, the particles are spherical, and the average particle size is 80 μm.
Performance characterization
The compactness and the mechanical strength of the nickel-based alloy parts prepared in the examples 1 to 3 are tested by the following test methods:
the density testing method comprises the following steps: measuring mass by using a BSA124S type electronic balance, and calculating according to an Archimedes principle;
mechanical strength test method: the tensile test was carried out according to the GB/T228.1-2010 standard.
The test results are shown in Table 1.
TABLE 1
| Sample number | Density (%) | Mechanical Strength (MPa) |
| Example 1 | 99.2 | 630 |
| Example 2 | 98.8 | 618 |
| Example 3 | 99.5 | 641 |
| Blank control group | 95.3 | 580 |
As can be seen from table 1, the nickel-based alloy parts prepared in examples 1 to 3 of the present invention have improved compactness and mechanical strength compared to the blank control group (without adding binder). The graphene particles are introduced into the binder, so that gaps of the nickel-based alloy are filled, the compactness of the nickel-based alloy is improved, and the graphene particles can refine grains and further improve the mechanical property of the nickel-based alloy.
Claims (10)
1. A binder for binder injection additive manufacturing of a nickel base alloy, comprising, in mass fractions: 10 to 20 percent of hydrophilic solvent, 3 to 10 percent of surfactant, 0.5 to 2 percent of graphene particles and 70 to 85 percent of water.
2. The binder according to claim 1, wherein the graphene particles have a thickness of 1 to 10nm and a graphene sheet diameter of 1 to 10 μm.
3. The binder of claim 1, wherein the hydrophilic solvent is one or both of ethylene glycol monomethyl ether and diethylene glycol.
4. The binder of claim 1 wherein the surfactant is one or more of stearic acid, zinc stearate, and lithium stearate.
5. A method for preparing the binder according to any one of claims 1 to 4, comprising the steps of:
(1) Firstly, uniformly mixing graphene particles with water to obtain a graphene dispersion liquid;
(2) Then uniformly mixing the hydrophilic solvent and the graphene dispersion liquid to obtain a mixed solution;
(3) And (3) finally, uniformly mixing the surfactant with the mixed solution obtained in the step (2) to obtain the binder.
6. Use of a binder according to any one of claims 1 to 4 in binder jet additive manufacturing of a nickel base alloy.
7. The application of claim 6, wherein the application method comprises: adding the binder into binder jet additive manufacturing equipment, printing nickel alloy powder, heating the nickel alloy powder to 80-90 ℃ in an oven to solidify the nickel alloy powder after the printing is finished, and then degreasing and sintering the nickel alloy powder in vacuum to obtain the nickel-based alloy part.
8. The use according to claim 7, wherein the nickel alloy powder comprises Ni718 or Ni625, the particles being spherical and having an average particle size of 50 to 80 μm.
9. The use of claim 7, wherein the degreasing temperature is 380-400 ℃ and the degreasing time is 4-5 h.
10. The use according to claim 7, wherein the sintering temperature is 1280 ℃ to 1300 ℃ and the sintering time is 3 to 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211617078.9A CN115815619A (en) | 2022-12-15 | 2022-12-15 | Binder for binder injection additive manufacturing nickel-based alloy and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211617078.9A CN115815619A (en) | 2022-12-15 | 2022-12-15 | Binder for binder injection additive manufacturing nickel-based alloy and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794603A (en) * | 2017-11-16 | 2019-05-24 | 淮海工学院 | The powder and binder and forming technology of a kind of 3DP method 3 D-printing |
| CN110997186A (en) * | 2017-08-01 | 2020-04-10 | 利物浦大学 | Additive manufacturing assembly and method |
| KR20210049430A (en) * | 2019-10-25 | 2021-05-06 | 울산대학교 산학협력단 | Composite binder material for binding electrode, electrode paste composition having the composite binder material, and electrode structure for energy storage apparatus having the composite binder material |
| US11110519B2 (en) * | 2016-02-19 | 2021-09-07 | Print-Rite ⋅ Unicorn Image Products Co., Ltd. Of Zhuhai | Metal three-dimensional printer |
| CN113666748A (en) * | 2021-08-31 | 2021-11-19 | 长沙新材料产业研究院有限公司 | Preparation method of graphite material and graphite material |
| CN113717663A (en) * | 2020-05-26 | 2021-11-30 | 通用电气公司 | Binder solutions containing fugitive metal precursors for additive manufacturing |
| CN114106756A (en) * | 2021-11-26 | 2022-03-01 | 宁波合盛新材料有限公司 | Seed crystal bonding glue and seed crystal bonding method |
-
2022
- 2022-12-15 CN CN202211617078.9A patent/CN115815619A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11110519B2 (en) * | 2016-02-19 | 2021-09-07 | Print-Rite ⋅ Unicorn Image Products Co., Ltd. Of Zhuhai | Metal three-dimensional printer |
| CN110997186A (en) * | 2017-08-01 | 2020-04-10 | 利物浦大学 | Additive manufacturing assembly and method |
| CN109794603A (en) * | 2017-11-16 | 2019-05-24 | 淮海工学院 | The powder and binder and forming technology of a kind of 3DP method 3 D-printing |
| KR20210049430A (en) * | 2019-10-25 | 2021-05-06 | 울산대학교 산학협력단 | Composite binder material for binding electrode, electrode paste composition having the composite binder material, and electrode structure for energy storage apparatus having the composite binder material |
| CN113717663A (en) * | 2020-05-26 | 2021-11-30 | 通用电气公司 | Binder solutions containing fugitive metal precursors for additive manufacturing |
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