CN105562676B - It is a kind of for enhancing metallic composite of 3D printing and preparation method thereof - Google Patents
It is a kind of for enhancing metallic composite of 3D printing and preparation method thereof Download PDFInfo
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- CN105562676B CN105562676B CN201510973095.XA CN201510973095A CN105562676B CN 105562676 B CN105562676 B CN 105562676B CN 201510973095 A CN201510973095 A CN 201510973095A CN 105562676 B CN105562676 B CN 105562676B
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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
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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
Abstract
The present invention proposes a kind of enhancing metallic composite for 3D printing, is prepared from by following raw material：50 60 parts of metal dust, 20 25 parts of lithium porcelain stone, 38 parts of quartz, 23 parts of Firebrake ZB, 13 parts of sodium carbonate, 0.5 2 parts of bonding agent；The enhancing metallic composite is that, by being bonded and sintering, in metal powder surface formation ceramic plane, the ceramic plane has micropore, assigns metal powder intensity and toughness.While having, sphericity is high, particle diameter is small, narrowly distributing characteristic.During for 3D printing straight forming metallic article, the adhesion under the temperature conditionss less than melting point metal of metal porcelain facing effectively prevents the deformation of metallic article, so as to obtain the metallic article of high intensity, high tenacity.
Description
Technical field
The invention belongs to 3D printing Material Field, and in particular to a kind of enhancing metallic composite for 3D printing and its
Preparation method.
Background technology
3D printing technique is as being created that by continuous material layer come its process is such as the printing of printer by three-dimensional article
Process, by the way that powder pointwise is printed into stratification, is then successively superimposed as the preparation process of 3D solid, with high precision, speed
The characteristics of fast, the characteristics of its is maximum is settled at one go from being designed into shaping, and is capable of the production of the more accurate complexity of preparation structure
Product.The technology not only overcomes tradition and subtracts the loss that material is caused, and makes product manufacturing more intelligent, more precisely, higher
Effect.At present, the maximum bottleneck that restriction 3D printing techniques are developed rapidly is printed material, particularly metallic print material.
High-performance metal component directly use 3D printing techniques manufacture view, it is necessary to 3D printing metal material particle diameter it is thin,
Uniform particle sizes, high sphericity, low oxygen content.Chinese invention patent CN103801704A discloses a kind of 3D printing shaping copper powder
Material and preparation method thereof, this method uses argon gas protection stove melting TU0 oxygen-free coppers to 1250~1400 DEG C, in the case where stablizing minute-pressure
Copper liquid flows through aerosolization nozzle by bottom pour ladle crucible and flow-guiding mouth, the preheating velocity of sound argon airflow scouring copper liquid surface projected by nozzle
Shearing force and extruding force are produced, the deformation of copper liquid, liquid flow diameter is constantly reduced, and is ultimately formed droplet, then in spray chamber
Globular metallic powder is made in cooling, and 3D printing copper powder made from the preparation method obtains high powder rate, sphericity height, oxygen content and is less than
500ppm, particle diameter are less than 10 μm and narrowly distributing.
And the existing 3D printing techniques using metal-powder as raw material, by direct metal laser sintering (DMLS) technology,
Electron-beam melting shaping (EBM) technology, selective laser melting shaping (SLM) technology, selective thermal sintering (SHS) technology
With selective laser sintering (SLS) technology, its principle is to form new metal material to metal-powder fusing, sintering with energy
Material and shape.Because the fusing of metal-powder in atmosphere, sintering are easy to oxidation, melt flows cause product deformation, thus 3D beats
The hardness of the metallic article of print, tensile strength, toughness are all than relatively low.
The intensity defect that metallic article is prepared in 3D printing can effectively be overcome by being handled by metal powder enhancing.It has been reported that
It can strengthen surfacing of the metal as aircraft turbine engine and supersonic plane using silicon carbide fibre, crystal whisker materials
Deng.These enhancings to metal are fiber will to be added after metal melting and then be molded.And the requirement of 3D printing metal material is
Powder, so that fiber reinforcement is restricted.
The content of the invention
For the metal powder material composition currently used for 3D printing is single, intensity and the poor defect of toughness, the present invention
Propose a kind of enhancing metallic composite for 3D printing.The enhancing metallic composite is by being bonded and sintering, in gold
Belong to powder surface and form ceramic plane, the ceramic plane has micropore, assigns metal powder intensity and toughness.There is sphericity height, grain simultaneously
Footpath is small, narrowly distributing characteristic.During for 3D printing straight forming metallic article, metal porcelain facing is in the temperature strip less than melting point metal
Adhesion under part, effectively prevents the deformation of metallic article, so as to obtain the metallic article of high intensity, high tenacity.
Further provide for a kind of preparation method of the enhancing metallic composite for 3D printing.
A kind of enhancing metallic composite for 3D printing, is achieved by the following technical solution：
A kind of enhancing metallic composite for 3D printing, it is characterized in that：It is prepared from by following raw material：
50-60 parts of metal dust,
20-25 parts of lithium porcelain stone,
It is quartzy 3-8 parts,
2-3 parts of fluxing agent,
1-3 parts of sodium carbonate,
0.5-2 parts of bonding agent；
Wherein, described metal dust is in stainless steel powder, copper powder, metal nickel powder, metal iron powder, metallic titanium powder
One kind, grain diameter be less than 100 mesh；
Described lithium porcelain stone is the fine powder that particle diameter is less than 1250 mesh, wherein Li2O ＞ 3%, K2O ＞ 2.5%, Na2O ＞
2.5%；
Described quartz is the fine powder that particle diameter is less than 1250 mesh；
Described fluxing agent is one kind in Firebrake ZB, zinc oxide, barium carbonate, can make the lithium porcelain stone on metal-powder surface
Powder, silica flour are in 1000 DEG C or so porcelain.
Described bonding agent is polyacrylic acid, polyethylene glycol, methylcellulose, polyvinylpyrrolidone, aqueous polyurethane
Wherein at least one；
A kind of enhancing metallic composite for 3D printing, is to be prepared by the following method：
1）The sodium carbonate of 1-3 parts by weight, the bonding agent of 0.5-2 parts by weight and suitable quantity of water are configured to thick liquid, it is sticky
The viscosity of liquid is between 5-8cP, and then the metal powder with 50-60 parts by weight is heated to 80-90 DEG C in high speed dispersor, with
900-1500rpm Rate Dispersion 10-15min, makes metal powder have cementability and tack；
2）By step 1）Obtained dispersed metal powder and lithium porcelain stone, the quartz of 3-8 parts by weight, the 2-3 weight of 20-25 parts by weight
The fluxing agent feeding helical feed powder applying machine of part is measured, helical feed powder applying machine drives material to be axially moveable, and passes through conveyor screw
Lithium porcelain stone, quartzy fine powder are bonded in metal powder surface by continuous rotation；
3）By step 2）Dried by the metal powder of face powder at 100-120 DEG C, 50 mesh sieves are crossed by ball milling；
4）By step 3）Obtained face powder metallic particles calcines 10-15 in nitrogen atmosphere under the conditions of 900-1100 DEG C
Minute, natural cooling obtains strengthening metallic composite.
A kind of enhancing metallic composite for 3D printing of the invention, metal powder is improved using sodium carbonate and bonding agent
Interfacial characteristics, so that lithium porcelain stone powder, silica flour are completely be bonded with metal, by being bonded and sintering, is formed in metal powder surface
Ceramic plane, has a gas generation during due to sodium carbonate, bonding agent sintering, therefore ceramic plane has micropore, assign metal powder intensity and
Toughness.While having, sphericity is high, particle diameter is small, narrowly distributing characteristic.During for 3D printing straight forming metallic article, metal porcelain
Face adhesion under the temperature conditionss less than melting point metal, effectively prevents the deformation of metallic article, so as to obtain high intensity, high tenacity
Metallic article.
The present invention is a kind of for enhancing metallic composite of 3D printing and preparation method thereof, compared with prior art, its
Prominent the characteristics of and excellent effect are：
1st, a kind of enhancing metallic composite for 3D printing of the invention, ceramic plane is formed in metal powder surface, due to
There is gas generation when sodium carbonate, bonding agent sintering, therefore ceramic plane has micropore, assigns metal powder intensity and toughness.
2nd, a kind of enhancing metallic composite for 3D printing of the invention, for 3D printing straight forming metallic article
When, the adhesion under the temperature conditionss less than melting point metal of metal porcelain facing effectively prevents the deformation of metallic article, so as to obtain high-strength
Degree, the metallic article of high tenacity.
3rd, the preparation method of a kind of enhancing metallic composite for 3D printing of the present invention, without being melted completely to metal powder
Melting realizes the enhancing modification of metal powder, and not only technique is brief, and energy consumption is low, low cost, is suitable for large-scale production.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
Various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
1）The sodium carbonate of 1 parts by weight, the bonding agent polyacrylic acid of 2 parts by weight and suitable quantity of water are configured to thick liquid, glued
The viscosity of thick liquid is between 5-8cP, and then the stainless steel powder with 50 parts by weight is heated to 80-90 in high speed dispersor
DEG C, with 900rpm Rate Dispersion 10min, make metal powder that there is cementability and tack；
2）By step 1）Obtained dispersed metal powder and the lithium porcelain stone of 20 parts by weight, the quartz of 3 parts by weight, 2 parts by weight
Fluxing agent Firebrake ZB sends into helical feed powder applying machine, and helical feed powder applying machine drives material to be axially moveable, and passes through conveyor screw
Lithium porcelain stone, quartzy fine powder are bonded in metal powder surface by continuous rotation；
3）By step 2）Dried by the metal powder of face powder at 100 DEG C, 50 mesh sieves are crossed by ball milling；
4）By step 3）Obtained face powder metallic particles calcines 10 points in nitrogen atmosphere under the conditions of 900-1100 DEG C
Clock, natural cooling obtains strengthening metallic composite.
The enhancing metallic composite that embodiment 1 is obtained sinters the gold of laying layer by layer by three-dimensional printing technology laser
Belong to powder, obtain a kind of hinge, stainless steel metal product fracture toughness is 78MPa m1/2, higher than titanium alloy fracture toughness property.
Embodiment 2
1）The sodium carbonate of 2 parts by weight, the bonding agent polyethylene glycol of 1.5 parts by weight and suitable quantity of water are configured to thick liquid,
The viscosity of thick liquid is between 5-8cP, and then the metal nickel powder with 55 parts by weight is heated to 90 DEG C in high speed dispersor, with
1000rpm Rate Dispersion 15min, makes metal powder have cementability and tack；
2）By step 1）Obtained dispersed metal powder and the lithium porcelain stone of 25 parts by weight, the quartz of 5 parts by weight, 3 parts by weight
Fluxing agent zinc oxide sends into helical feed powder applying machine, and helical feed powder applying machine drives material to be axially moveable, and passes through conveyor screw
Lithium porcelain stone, quartzy fine powder are bonded in metal powder surface by continuous rotation；
3）By step 2）Dried by the metal powder of face powder at 120 DEG C, 50 mesh sieves are crossed by ball milling；
4）By step 3）Obtained face powder metallic particles calcines 12 points in nitrogen atmosphere under the conditions of 900-1100 DEG C
Clock, natural cooling obtains strengthening metallic composite.
Embodiment 3
1）The sodium carbonate of 3 parts by weight, the bonding agent methylcellulose of 2 parts by weight and suitable quantity of water are configured to thick liquid,
The viscosity of thick liquid is between 5-8cP, and then the metal iron powder with 60 parts by weight is heated to 80-90 in high speed dispersor
DEG C, with 1500rpm Rate Dispersion 10min, make metal powder that there is cementability and tack；
2）By step 1）Obtained dispersed metal powder and the lithium porcelain stone of 25 parts by weight, the quartz of 8 parts by weight, 3 parts by weight
Fluxing agent barium carbonate sends into helical feed powder applying machine, and helical feed powder applying machine drives material to be axially moveable, and passes through conveyor screw
Lithium porcelain stone, quartzy fine powder are bonded in metal powder surface by continuous rotation；
3）By step 2）Dried by the metal powder of face powder at 100-120 DEG C, 50 mesh sieves are crossed by ball milling；
4）By step 3）Obtained face powder metallic particles calcines 15 points in nitrogen atmosphere under the conditions of 900-1100 DEG C
Clock, natural cooling obtains strengthening metallic composite.
Embodiment 4
1）The sodium carbonate of 1 parts by weight, the bonding agent polyvinylpyrrolidone of 0.5 parts by weight and suitable quantity of water are configured to sticky
Liquid, the viscosity of thick liquid is between 5-8cP, and then the copper powder with 50 parts by weight is heated in high speed dispersor
80-90 DEG C, with 900rpm Rate Dispersion 10-15min, make metal powder that there is cementability and tack；
2）By step 1）Obtained dispersed metal powder and the lithium porcelain stone of 20 parts by weight, the quartz of 3 parts by weight, 2 parts by weight
Fluxing agent Firebrake ZB sends into helical feed powder applying machine, and helical feed powder applying machine drives material to be axially moveable, and passes through conveyor screw
Lithium porcelain stone, quartzy fine powder are bonded in metal powder surface by continuous rotation；
3）By step 2）Dried by the metal powder of face powder at 100-120 DEG C, 50 mesh sieves are crossed by ball milling；
4）By step 3）Obtained face powder metallic particles calcines 15 points in nitrogen atmosphere under the conditions of 900-1100 DEG C
Clock, natural cooling obtains strengthening metallic composite.
Embodiment 5
1）The sodium carbonate of 3 parts by weight, the bonding agent aqueous polyurethane of 2 parts by weight and suitable quantity of water are configured to thick liquid,
The viscosity of thick liquid is between 5-8cP, and then the metallic titanium powder with 50 parts by weight is heated to 80-90 in high speed dispersor
DEG C, with 900rpm Rate Dispersion 15min, make metal powder that there is cementability and tack；
2）By step 1）Obtained dispersed metal powder and the lithium porcelain stone of 25 parts by weight, the quartz of 6 parts by weight, 3 parts by weight
Fluxing agent zinc oxide sends into helical feed powder applying machine, and helical feed powder applying machine drives material to be axially moveable, and passes through conveyor screw
Lithium porcelain stone, quartzy fine powder are bonded in metal powder surface by continuous rotation；
3）By step 2）Dried by the metal powder of face powder at 100-120 DEG C, 50 mesh sieves are crossed by ball milling；
4）By step 3）Obtained face powder metallic particles calcines 10 points in nitrogen atmosphere under the conditions of 900-1100 DEG C
Clock, natural cooling obtains strengthening metallic composite.
Claims (1)
1. a kind of enhancing metallic composite for 3D printing, it is characterized in that：Its raw material is calculated as by weight：
50-60 parts of metal dust,
20-25 parts of lithium porcelain stone,
It is quartzy 3-8 parts,
2-3 parts of fluxing agent,
1-3 parts of sodium carbonate,
0.5-2 parts of bonding agent；
Wherein, described metal dust is one in stainless steel powder, copper powder, metal nickel powder, metal iron powder, metallic titanium powder
Kind, grain diameter is less than 100 mesh；
Described lithium porcelain stone is the fine powder that particle diameter is less than 1250 mesh, wherein Li2O ＞ 3%, K2O ＞ 2 .5%, Na2O ＞ 2
.5%；
Described quartz is the fine powder that particle diameter is less than 1250 mesh；
Described fluxing agent is one kind in Firebrake ZB, zinc oxide, barium carbonate；
Described bonding agent be polyacrylic acid, polyethylene glycol, methylcellulose, polyvinylpyrrolidone, aqueous polyurethane wherein
It is at least one；
The enhancing metallic composite, is to be prepared from by the following method：
1）The sodium carbonate of 1-3 parts by weight, the bonding agent of 0 .5-2 parts by weight and suitable quantity of water are configured to thick liquid, thick liquid
Viscosity between 5-8cP, then the metal dust with 50-60 parts by weight is heated to 80-90 DEG C in high speed dispersor, with
900-1500rpm Rate Dispersion 10-15min, makes metal dust have cementability and tack；
2）By step 1）Obtained divided metallic powder and the lithium porcelain stone, the quartz of 3-8 parts by weight, 2-3 weight of 20-25 parts by weight
The fluxing agent feeding helical feed powder applying machine of part, helical feed powder applying machine drives material to be axially moveable, and is connected by conveyor screw
Lithium porcelain stone, quartzy fine powder are bonded in metal powder surface by continuous rotation；
3）By step 2）Dried by the metal dust of face powder at 100-120 DEG C, 50 mesh sieves are crossed by ball milling；
4）By step 3）Obtained face powder metallic particles is calcined 10-15 minutes in nitrogen atmosphere under the conditions of 900-1100 DEG C,
Natural cooling, obtains strengthening metallic composite.
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| DE102011105688A1 (en) * | 2011-06-22 | 2012-12-27 | Hüttenes-Albertus Chemische Werke GmbH | Method for the layered construction of models |
| CN104801704B (en) * | 2015-03-26 | 2017-01-25 | 成都新柯力化工科技有限公司 | Shape memory alloy material for three-dimensional printing and preparation method of shape memory alloy material |
| CN104801703B (en) * | 2015-03-26 | 2016-08-24 | 成都新柯力化工科技有限公司 | A kind of flexible metal powder for 3 D-printing and its preparation method and application method |
| CN105108134B (en) * | 2015-08-04 | 2017-03-08 | 成都新柯力化工科技有限公司 | A kind of paste metallic composite for 3D printing and preparation method thereof |
| CN105130482B (en) * | 2015-08-04 | 2017-03-29 | 成都新柯力化工科技有限公司 | A kind of Metal toughened ceramic matric composite for 3D printing |
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Effective date of registration: 20220916 Address after: 322000 712, 7th floor, 288 Yangcun Road, Houjiang street, Yiwu City, Jinhua City, Zhejiang Province Patentee after: Fengte (Zhejiang) new material Co.,Ltd. Address before: 610091, Sichuan, Chengdu province Qingyang dragon industrial port, East Sea 4 Patentee before: CHENDU NEW KELI CHEMICAL SCIENCE Co.,Ltd. CHINA |