CN109047768A - A kind of low-melting-point metal wire rod for 3D printing - Google Patents
A kind of low-melting-point metal wire rod for 3D printing Download PDFInfo
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- CN109047768A CN109047768A CN201811002583.6A CN201811002583A CN109047768A CN 109047768 A CN109047768 A CN 109047768A CN 201811002583 A CN201811002583 A CN 201811002583A CN 109047768 A CN109047768 A CN 109047768A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- 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
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C12/00—Alloys based on antimony or bismuth
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/06—Alloys containing less than 50% by weight of each constituent containing zinc
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Abstract
The present invention relates to a kind of low-melting-point metal wire rods for 3D printing, and be prepared by the raw material for including following weight percentage: Bi 20~45%, Sn 25~40%, In complements to 100%.The fusing point of metal wire rod of the present invention is 75~100 DEG C, the present invention by adjusting Bi, Sn and In relative amount, the hardness and tensile strength of metal wire rod can be effectively improved, circuit printing, the printing of three-dimensional metal structure part and the demand for combining the functional structure part of plastics to print can be met, be with a wide range of applications and be worth with higher business promotion.
Description
Technical field
The present invention relates to the 3D printing technique fields for belonging to raw metal, and in particular to a kind of low melting point for 3D printing
Metal wire rod.
Background technique
3D printing is one kind based on digital model file, with adhesive materials such as powdery metal or plastics, is led to
The technology of object is constructed after the mode successively printed.It is essentially identical with common print working principle, what printer was provided with
Wire rod liquid or powder etc. " printed material " after connecting with computer, are controlled " printed material " from level to level by computer
It stacks up, the blueprint on computer is finally become in kind.At present in mold manufacture, industrial design, automotive electronics, aviation boat
The fields such as it are with more and more extensive.
The method that the 3D printing of current metal material generally uses laser fast shaping, i.e., tried with high-power laser irradiation
Metal powder is melted on part surface, forms liquid state molten pool, then moves laser beam, melts the powder in front and allows the metal at rear
Cooled and solidified.In print procedure, need to apply inert gas shielding, the measures such as spray head control.The 3D printing system of metal material
Making technology, why difficulty is big, is to be related to the solid-liquid phase change of metal, surface because the fusing point of metal is higher (up to thousands of degree)
Diffusion, a variety of physical processes such as heat transfer.Quickly heating and cooling will also cause biggish residual stress in test specimen.In addition,
Metal 3D printing mostly uses titanium alloy, nickel base superalloy, tungsten alloy, and the higher melting-point metal powder such as stainless steel does raw material,
And powder manufacture is with high costs.
Unlike high-temperature metal 3D printing route, current low cost can be in popular 3D printer, then mainly
Using fusion sediment technology (FDM, Fused Deposition Modeling), i.e. wire rod is sent into one by computer by printer
The extruded type spray head of auxiliary manufacture software control, spray head will squeeze out after the heating fusing of line style printed material, and the liquid after extrusion is former
Material cools and solidifies rapidly, to form.Most common fuse wire is mainly PLA, ABS, artificial rubber, casting wax and polyester
Thermoplastic etc., but these wire rods can not achieve conducting function because not having metallic character such as electric conductivity, high intensity etc.
Device.There is the relevant programme for carrying out 3D metallic print at room temperature in the prior art, but low-melting-point metal prints
Hardness, the tensile strength of device etc. it is smaller, comprehensive performance is poor, limits the application of low-melting-point metal printing.In recent years
Come, one of the direction that printing is always industry research is combined in charging printing with metal, and metal mixes printing with nonmetallic, so that whole
A manufacturing process can carry out printing alternate with nonmetallic materials, various electronic circuit function devices are achieved in, so that target is whole
The full-automatic of end equipment manufactures and is assembled into possibility.But metal in the prior art cannot achieve and plastic or other material
Combine printing simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of low-melting-point metal wire rods for 3D printing, by including following weight percent
The raw material of content is prepared: Bi 20~45%, Sn 25~40%, In complements to 100%；
Preferably, the percentage composition ratio In high 6~12% of the percentage composition ratio Sn high 2~8% of Bi, Sn.
It is a discovery of the invention that the solidus of Bi-Sn-In low-melting-point metal wire rod, liquidus curve are improved with the increase of Bi content,
Hardness linearly increases with the increase of Bi content ratio；But it is substantially reduced with the increase of Sn, In content.But improve low melting point
The Sn content of metal can improve the shear strength and tensile strength of low-melting-point metal wire rod, especially in the dosage of each component upper
When stating in range, the various aspects of performance of metal wire rod is more ideal.
It preferably, include mechanical property improver in the wire rod.Mechanical property improver can further promote metal
Binding performance and fatigue resistance.
Preferably, metal oxidation resistance agent is added in the wire rod.The addition of metal oxidation resistance agent can be promoted further
The antioxygenic property of metal improves printing reliability.
Preferably, the mechanical property improver is one or more of Ag, Cu or Zn.Wire rod surrender pole can be improved in Ag
Limit and tensile strength, while the wettability of material can be improved；The wetability of material equally can be improved in Zn, Cu, also can material
Improve mechanical property, improves the reliability of wire rod.
Preferably, the metal antioxidant is one or more of Ga, P or Al.Addition microelement Ga, P can have
The inoxidizability of the raising of the effect wire rod can generate enrichment oxidation film on oxidation film surface layer, so that oxygen element concentration reduces, inhibit
The oxidation of wire rod also functions to the effect for improving metal surface wetability；Same that trace element Al is added, aluminium element can be in wire rod table
Face forms dense oxidation film, becomes " barrier layer ", it is suppressed that the oxidation of wire rod can equally play the antioxygenic property for improving wire rod
Effect.
Preferably, the additive amount of the mechanical property improver is 0.1~1%.
Preferably, the additive amount of the metal oxidation resistance agent is 0.1~0.5%.
Preferably, metal wire rod of the invention is prepared by the raw material including following parts by weight: Bi 38~40%,
Sn34~36%, In complement to 100%；The dosage of each raw material within this range, can guarantee the intensity and toughness of metal wire rod,
Obtain preferable printing effect.
Or Bi 38~40%, Sn34~36%, mechanical property improver 0.1~0.7%, metal oxidation resistance agent 0.1~
0.35%, In complement to 100%.
The dosage of each raw material within this range, can guarantee intensity, toughness, the inoxidizability of metal wire rod, wetability etc.,
Obtain preferable printing effect.
As specific preferred embodiment, the metal wire rod of the invention is by the raw material system including following weight percent
It is standby to form:
Bi 40%, Sn 35%, In supply 100%；
Or, Bi 40%, Sn 35%, Zn 0.2%, Al 0.15%, Cu 0.1%, P 0.15%, In supplies 100%；
Or, Bi 40%, Sn 34%, Ag 0.1%, Zn 0.5%, Al 0.1%, Cu 0.1%, In supplies 100%；
Or, Bi 39.5%, Sn 34.5%, Ag 0.1%, Al 0.1%, Ga 0.05%, In supplies 100%；
Or, Bi 38.5%, Sn 36%, Zn 0.5%, Al 0.2%, P 0.1%, Ga 0.05%, In supplies 100%；
Or, Bi 38%, Sn 35%, Ag 0.1%, Cu 0.1%, P 0.1%, In supplies 100%.
It is another object of the present invention to protect the preparation method of metal wire rod of the present invention, include the following steps:
1) each raw material of above-mentioned parts by weight is added in smelting furnace, melting coverture ZnCl is then added2, it is heated to 600
~680 DEG C, each raw material is melted, keeps the temperature 20~40min；
2) melting coverture is removed after stirring 25~35min to the raw material after melting, is cast in mold and low temperature gold is made
Belong to ingot blank, squeeze into strips or it is Filamentous to get.
Preferably, 650 DEG C are heated to, each raw material is melted, keeps the temperature 30min；
Preferably, the ZnCl2The additive amount of melting coverture is the 0.1% of the gross mass of each raw material.
Final object of the present invention is that protection wire rod of the present invention is beaten in circuit printing, three-dimensional metal structure part
Application in the three-dimensional function structural member printing of print and combination plastics.
Preferably, in conjunction in the three-dimensional function structural member printing of plastics, the plastics are polylactic acid or acrylonitrile-benzene second
Alkene-butadiene copolymer.
Preferably, the functional structure part printing that jet printing technology is combined plastics is melted by FDM.
Preferably, the surface accuracy of plastic basis material is 0.1mm~0.2mm in print procedure.
Metal wire rod described herein, which can be printed preferably, is adhered to plastic basis material such as polylactic acid (PLA), acrylonitrile-
In styrene-butadiene copolymer (ABS) etc., the direct production of various electronic circuit function devices is realized, simultaneously because the gold
Belong to wire rod and belongs to low-melting-point metal wire rod, it, can easily heating be melted at heating nozzle between fusing point low (75 DEG C~100 DEG C)
Change.Generally PLA, ABS, fusing point melt jet printing technology, the low melting point between 180 DEG C to 220 degrees Celsius, through FDM
Metal wire rod can be easily with plastics printed material such as PLA, and ABS cooperates print job, especially when plastic basis material type list
For face precision when 0.1mm is between 0.2mm, effect is more preferable.Other metal wire rods such as aluminium wire (660 DEG C of fusing point), copper wire
Material (1083 DEG C of fusing point), fusing point is all excessively high, its wire rod can not be melted to the mesh that printing is also just not achieved using FDM technology
, it is aoxidized seriously after melting in air in addition, is less useful for print job.And it the low-melting-point metal of the application and is not present
These problems are metal and nonmetallic one of the ideal material for mixing printing.
Metal wire rod of the present invention has the following beneficial effects:
1) 3D printing low-melting-point metal wire rod, by adjusting the relative amount of bismuth indium tin, with traditional low melting material phase
Than, such as tin (232 DEG C of fusing point) or sn-bi alloy (138 DEG C), print temperature is greatly reduced, cooling velocity also faster, is beaten
During print, energy consumption is less, reduces printing cost, while temperature is low, and operate more difficult scald, prints security performance
It increases substantially.
2) when mixing printing with plastic material using traditional low-melting-point metal wire rod, since parts of plastics material is to temperature
More sensitive, the excessively high softening that will result in plastic material of temperature, traditional low-melting-point metal wire rod fusion temperature is higher cannot be effective
Plastic material is avoided to soften problem.And 3D printing low-melting-point metal wire rod of the invention is since wire rod fusing point is low, in print procedure
Influence caused by the plastic material printed will be will be greatly reduced, can effectively avoid the softening of plastic material from asking
Topic.3D printing low-melting-point metal wire rod heat content of the invention simultaneously is larger, has one section of heat absorption buffer time, printing is mixed with plastics
After will not be melted quickly because plastics temperature is high, the stability after printing is higher.
Detailed description of the invention
Fig. 1 is several form factors figures of low-melting-point metal wire rod；
Fig. 2 is that metal wire rod combines progress 3D printing schematic diagram with plastic wire；
In Fig. 2,1 is metal wire rod, and 2 be plastic wire, and 3 be metal wire rod spray head, and 4 be plastic wire spray head, and 5 be support
Disk, 6 be plastic construction, and 7 be metal structure.
Specific embodiment
Embodiment 1
The low-melting-point metal wire rod that the present embodiment is related to a kind of 3D printing is prepared by the following raw material by mass percentage
Form: Bi40%, Sn35%, remaining is In.
The present embodiment further relates to the preparation method of this metal wire rod, includes the following steps:
1) the pure In raw material of the 40kg weighed up pure Bi, 35kg pure Sn, 25kg is added in 200kg smelting furnace, amounts to 100kg,
The ZnCl2 melting coverture of 100g is added, is heated to 350 DEG C, and keep the temperature 30min.
2) surface dopant is removed after being stirred 30min to above-mentioned gained melt, is cast in mold and low temperature gold is made
Belong to ingot blank.
3) on extruder by ingot obtained by step (2) squeeze into strips, it is Filamentous.
The metal wire rod that the present embodiment is prepared can guarantee that the mechanical properties such as wire strength and toughness are relatively preferable,
Be conducive to the print job of wire rod.
Embodiment 2
The low-melting-point metal wire rod that the present embodiment is related to a kind of 3D printing is prepared by the following raw material by mass percentage
Form: Bi 40%, Sn 35%, Zn 0.2%, Al 0.15%, Cu 0.1%, P 0.15%, remaining is In.
The present embodiment further relates to the preparation method of this metal wire rod, includes the following steps:
1) it is pure that the 40kg weighed up pure Bi, 35kg pure Sn, 200g pure Zn, 150g pure Al, 100g are added in 200kg smelting furnace
The pure In raw material of Cu, 150g pure P, 24.4kg amounts to 100kg, the ZnCl2 melting coverture of 100g is added, is heated to 650 DEG C, and
Keep the temperature 30min.
2) surface dopant is removed after being stirred 30min to above-mentioned gained melt, is cast in mold and low temperature gold is made
Belong to ingot blank.
3) on extruder by ingot obtained by step (2) squeeze into strips, it is Filamentous, structure is shown in Fig. 1.
The metal wire rod that the present embodiment is prepared can guarantee that the mechanical properties such as wire strength and toughness are relatively preferable,
Be conducive to the print job of wire rod.Meanwhile when adding the collocation Cu 0.1% of Zn 0.2%, the wetting of the wire rod obtained in the proportion
Property enhancing；When adding the collocation P 0.15% of Al 0.15%, the antioxygenic property of wire rod is effectively improved, it is long to be conducive to metal wire rod
Phase saves.
Embodiment 3
The low-melting-point metal wire rod that the present embodiment is related to a kind of 3D printing is prepared by the following raw material by mass percentage
Form: Bi 40%, Sn 34%, Ag 0.1%, Zn 0.5%, Al 0.1%, Cu 0.1%, remaining is In.
The present embodiment further relates to the preparation method of this metal wire rod, includes the following steps:
1) it is pure that the 40kg weighed up pure Bi, 34kg pure Sn, 100g pure Ag, 500g pure Zn, 100g are added in 200kg smelting furnace
The pure In raw material of Al, 100g fine copper, 25.2kg amounts to 100kg, the ZnCl2 melting coverture of 100g is added, is heated to 650 DEG C, and
Keep the temperature 30min.
2) surface dopant is removed after being stirred 30min to above-mentioned gained melt, is cast in mold and low temperature gold is made
Belong to ingot blank.
3) on extruder by ingot obtained by step (2) squeeze into strips, it is Filamentous.
The metal wire rod that the present embodiment is prepared can guarantee that the mechanical properties such as wire strength and toughness are relatively preferable,
Be conducive to the print job of wire rod.Meanwhile it adding Ag0.1% and wire rod yield limit and tensile strength can be improved, and adding Zn
0.5%, Cu 0.1% arranges in pairs or groups with it, can effectively enhance wire rod wetability in the proportion；Al 0.1% is added, line is effectively improved
The antioxygenic property of material is conducive to metal wire rod long-term preservation.
Embodiment 4
The low-melting-point metal wire rod that the present embodiment is related to a kind of 3D printing is prepared by the following raw material by mass percentage
Form: Bi 39.5%, Sn 34.5%, Ag 0.1%, Al 0.1%, Ga 0.05%, remaining is In.
The present embodiment further relates to the preparation method of this metal wire rod, includes the following steps:
1) be added in 200kg smelting furnace pure Sn, 100g fine silver of the 39.5kg weighed up pure Bi, 34.5kg, the pure Al of 100g,
The pure In raw material of 50g pure Ga, 25.75kg amounts to 100kg, the ZnCl2 melting coverture of 100g is added, is heated to 650 DEG C, and protect
Warm 30min.
2) surface dopant is removed after being stirred 30min to above-mentioned gained melt, is cast in mold and low temperature gold is made
Belong to ingot blank.
3) on extruder by ingot obtained by step (2) squeeze into strips, it is Filamentous.
The metal wire rod that the present embodiment is prepared can guarantee that the mechanical properties such as wire strength and toughness are relatively preferable,
Be conducive to the print job of wire rod.Meanwhile it adding Ag0.1% and wire rod yield limit and tensile strength and wire rod wetting can be improved
Property, the addition collocation Ga 0.05% of Al 0.1% can effectively improve the antioxygenic property of wire rod in the proportion, be conducive to metal wire
Material long-term preservation.
Embodiment 5
The low-melting-point metal wire rod that the present embodiment is related to a kind of 3D printing is prepared by the following raw material by mass percentage
Form: Bi 38.5%, Sn 36%, Zn 0.5%, Al 0.2%, P 0.1%, Ga 0.05%, remaining is In.
The present embodiment further relates to the preparation method of this metal wire rod, includes the following steps:
1) 38.5kg weighed up pure Bi, 36kg pure Sn, 150g pure Zn, 200g pure Al, 100g are added in 200kg smelting furnace
The pure pure In raw material of P, 50g pure Ga, 23.65kg amounts to 100kg, the ZnCl2 melting coverture of 100g is added, is heated to 650 DEG C,
And keep the temperature 30min.
2) surface dopant is removed after being stirred 30min to above-mentioned gained melt, is cast in mold and low temperature gold is made
Belong to ingot blank.
3) on extruder by ingot obtained by step (2) squeeze into strips, it is Filamentous.
The metal wire rod that the present embodiment is prepared can guarantee that the mechanical properties such as wire strength and toughness are relatively preferable,
Be conducive to the print job of wire rod.Meanwhile Zn 0.5% is added, obtained wire rod wetability enhancing；Add the collocation of Al 0.2% P
When 0.1%, Ga 0.05%, the antioxygenic property of wire rod can be effectively improved in the proportion, be conducive to metal wire rod and protected for a long time
It deposits.
Embodiment 6
The low-melting-point metal wire rod that the present embodiment is related to a kind of 3D printing is prepared by the following raw material by mass percentage
Form: Bi 38%, Sn 35%, Ag 0.1%, Cu 0.1%, P 0.1%, remaining is In.
The present embodiment further relates to the preparation method of this metal wire rod, includes the following steps:
1) it is pure that the 38kg weighed up pure Bi, 35kg pure Sn, 100g pure Ag, 100g pure Cu, 100g are added in 200kg smelting furnace
P, the pure In raw material of 26.7kg amounts to 100kg, the ZnCl2 melting coverture of 100g is added, is heated to 650 DEG C, and keep the temperature 30min.
2) surface dopant is removed after being stirred 30min to above-mentioned gained melt, is cast in mold and low temperature gold is made
Belong to ingot blank.
3) on extruder by ingot obtained by step (2) squeeze into strips, it is Filamentous.
The metal wire rod that the present embodiment is prepared can guarantee that the mechanical properties such as wire strength and toughness are relatively preferable,
Be conducive to the print job of wire rod.Meanwhile add Ag0.1% and Cu 0.1% can be improved wire rod yield limit and tensile strength with
And wire rod wetability, addition P 0.1% can effectively improve the antioxygenic property of wire rod, be conducive to metal wire rod long-term preservation.
Comparative example 1
Compared with Example 1, difference is, wherein the group of each raw material becomes Bi45%, Sn30%, Zn 0.2%, Al
0.15%, Cu 0.1%, P 0.15%, remaining is In.
The metal wire rod gone out on the basis of matching herein, with the increase of Bi content, mechanical property such as wire rod tension
While enhanced strength, the toughness of wire rod is reduced, and be easy to cause brittle failure, reliability is not high, while making according to this proportion
Metal wire rod, wire rod inoxidizability is insufficient, and storage will cause oxidation blackening in air for a long time, and as the time increases
Long, the brittle failure of metal wire rod increases, and then causes metal wire rod failure that can not be normally used for print job.
Experimental example 1
This experimental example is related to the operation detected to the performance for the wire rod of Examples 1 to 5 being prepared, mainly to it
Hardness, tensile strength, shear strength, wettability and fusing point are tested, as a result such as table 1:
Table 1
Experimental example 2
This experimental example relates to the use of metal wire rod of the invention and combines the example for carrying out 3D printing with plastic wire.
Such as Fig. 2, metal wire rod described in embodiment 3 is combined with plastic wire carries out 3D printing device, is melted and is sprayed using FDM
It penetrates printing principle and realizes whole printing process.Print procedure is as follows: metal wire rod spray head 3, plastic wire spray head 4 are in computer
Under control, along the movement of X-axis and Y-axis；Simultaneously in the process of movement, metal wire rod 1 controls metal wire rod by computer
Spray head 3 squeezes out, and plastic wire 2 is controlled from plastic wire spray head 4 by computer and squeezed out, and pallet 5 moves up and down along Z axis；With
Metal wire rod spray head 3, the movement of plastic wire spray head 4 and material squeeze out, the knot that metal is mixed with plastics is formed on pallet 5
Component is formed comprising plastic construction 6 and 7 two parts of metal structure, and final realization metal wire rod is combined with plastic wire carries out 3D
Printing.
Although above having used general explanation, specific embodiment and test, the present invention is made to retouch in detail
It states, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed
Range.
Claims (10)
1. a kind of low-melting-point metal wire rod for 3D printing, which is characterized in that by the raw material including following weight percentage
Be prepared: Bi 20~45%, Sn25~40%, In complements to 100%.
2. metal wire rod according to claim 1, which is characterized in that the percentage composition ratio Sn high 2~8% of Bi, the hundred of Sn
Divide content ratio In high 6~12%.
3. metal wire rod according to claim 1 or 2, which is characterized in that further include mechanical property improver and/or metal
Antioxidant.
4. metal wire rod according to claim 3, which is characterized in that the mechanical property improver is in Ag, Cu or Zn
One or more；And/or the metal oxidation resistance agent is one or more of Ga, P or Al.
5. metal wire rod according to claim 3 or 4, which is characterized in that the additive amount of the mechanical property improver is
0.1~1%, and/or, the additive amount of the metal oxidation resistance agent is 0.1~0.5%.
6. described in any item metal wire rods according to claim 1~5, which is characterized in that by including following weight percentage
Raw material be prepared: Bi 38~40%, Sn34~36%, In complements to 100%；
Or Bi 38~40%, Sn34~36%, mechanical property improver 0.1~0.7%, metal oxidation resistance agent 0.1~
0.35%, In complement to 100%.
7. described in any item metal wire rods according to claim 1~6, which is characterized in that by including following weight percentage
Raw material be prepared:
Bi 40%, Sn 35%, In supply 100%；
Or, Bi 40%, Sn 35%, Zn 0.2%, Al 0.15%, Cu 0.1%, P 0.15%, In supplies 100%；
Or, Bi 40%, Sn 34%, Ag 0.1%, Zn 0.5%, Al 0.1%, Cu 0.1%, In supplies 100%；
Or, Bi 39.5%, Sn 34.5%, Ag 0.1%, Al 0.1%, Ga 0.05%, In supplies 100%；
Or, Bi 38.5%, Sn 36%, Zn 0.5%, Al 0.2%, P 0.1%, Ga 0.05%, In supplies 100%；
Or, Bi 38%, Sn 35%, Ag 0.1%, Cu 0.1%, P 0.1%, In supplies 100%.
8. the preparation method of any one of claim 1~7 metal wire rod, which comprises the steps of:
1) each raw material of above-mentioned parts by weight is added in smelting furnace, melting coverture ZnCl is then added2, it is heated to 600~680
DEG C, each raw material is melted, 20~40min is kept the temperature；
2) melting coverture is removed after stirring 25~35min to the raw material after melting, is cast in mold and low-temperature metal ingot is made
Base, squeeze into strips or it is Filamentous to get.
9. preparation method according to claim 8, which is characterized in that be heated to 650 DEG C in the step 1), make each raw material
Melting keeps the temperature 30min；And/or the melting coverture ZnCl2Additive amount be each raw material total weight 0.08~
0.12%.
10. the described in any item metal wire rods of claim 1~7 are in circuit printing, the printing of three-dimensional metal structure part and combine modeling
Application in the three-dimensional function structural member printing of material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002583.6A CN109047768B (en) | 2018-08-30 | 2018-08-30 | Low-melting-point metal wire for 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002583.6A CN109047768B (en) | 2018-08-30 | 2018-08-30 | Low-melting-point metal wire for 3D printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109047768A true CN109047768A (en) | 2018-12-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109894494A (en) * | 2019-02-28 | 2019-06-18 | 中国科学院理化技术研究所 | A kind of colored low-melting-point metal wire rod and preparation method thereof for 3D printing |
| CN112522537A (en) * | 2020-11-19 | 2021-03-19 | 有研工程技术研究院有限公司 | Low-melting-point high-latent-heat phase change energy storage material and preparation method thereof |
| CN113430440A (en) * | 2020-03-20 | 2021-09-24 | 北京梦之墨科技有限公司 | Low-melting-point alloy and preparation method and application thereof |
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| CN106041078A (en) * | 2016-07-13 | 2016-10-26 | 北京梦之墨科技有限公司 | Colored metal 3D printing wire and preparing method thereof |
| CN107274965A (en) * | 2017-07-03 | 2017-10-20 | 云南科威液态金属谷研发有限公司 | Electric slurry and its manufacture method based on low-melting-point metal micro-nano powder |
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| CN106041078A (en) * | 2016-07-13 | 2016-10-26 | 北京梦之墨科技有限公司 | Colored metal 3D printing wire and preparing method thereof |
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| CN109894494A (en) * | 2019-02-28 | 2019-06-18 | 中国科学院理化技术研究所 | A kind of colored low-melting-point metal wire rod and preparation method thereof for 3D printing |
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| CN113430440A (en) * | 2020-03-20 | 2021-09-24 | 北京梦之墨科技有限公司 | Low-melting-point alloy and preparation method and application thereof |
| CN113430440B (en) * | 2020-03-20 | 2022-03-01 | 北京梦之墨科技有限公司 | Low-melting-point alloy and preparation method and application thereof |
| CN112522537A (en) * | 2020-11-19 | 2021-03-19 | 有研工程技术研究院有限公司 | Low-melting-point high-latent-heat phase change energy storage material and preparation method thereof |
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