CN106378551A - Graphene composite powder thermal spraying composite welding wire and preparation method thereof - Google Patents
Graphene composite powder thermal spraying composite welding wire and preparation method thereof Download PDFInfo
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- CN106378551A CN106378551A CN201610826722.1A CN201610826722A CN106378551A CN 106378551 A CN106378551 A CN 106378551A CN 201610826722 A CN201610826722 A CN 201610826722A CN 106378551 A CN106378551 A CN 106378551A
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- powder
- graphene
- thermal spraying
- graphene composite
- horizontal fixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a graphene composite powder thermal spraying composite welding wire and a preparation method thereof. The composite welding wire is composed of a tubular wrapping material and filler powder. The tubular wrapping material is low-carbon steel or low alloy steel. The filler powder is a mixture of Fe-based graphene powder, ceramic particles, B, Cr, Ni, refractory metals and nanoscale Al2O3 powder. The weight ratio of the Fe-based graphene powder to ceramic particles to B to Cr to Ni to refractory metals to nanoscale Al2O3 powder is equal to (40-85): (1-10): (2.6-5): (2-20): (1-4): (1-5): (5-20), and the mass ratio of Fe to C in the Fe-based graphene powder is (40-80): (1.6-2.5). The graphene composite powder thermal spraying composite welding wire and the preparation method thereof have the advantages that the welding wire raw material and the preparation method are provided, a layer of graphene refined grains of a small quantity is generated on the surface of a base material in a thermal spraying processing mode, and therefore, the surface hardness and abrasion resistance of the base material are improved.
Description
Technical field
The present invention relates to graphene composite material technical field, a kind of specific design Graphene composite powder thermal spraying is combined
Welding wire and preparation method thereof.
Background technology
Graphene is a kind of new material with unique physico-chemical characteristic.This material is the thinnest the hardest in the world at present
One of material.Have excellent electric property (energy gap approximates 0, and carrier mobility reaches 2 × 105cm2 simultaneously
V-1 s-1), remarkable mechanical property (Young's moduluss are 1100GPa, and fracture strength is 125GPa) and good calorifics
Performance (thermal conductivity is about 5000W m-1 K-1, and thermal coefficient of expansion is extremely low).Since self-discovery, Graphene is extensive
It is used for preparing various new materials, particularly functional composite material.
In the research starting evening of Graphene enhancing structure composite, it is concentrated mainly at present and prepares Graphene REINFORCED Al base,
Ni base, Cu based composites.Strengthen in metal-base composites in blocky graphite alkene, Graphene is distributed on crystal boundary, refinement is brilliant
Grain, improves the yield strength of material and the effect of hardness.The preparation process very complicated of these materials, manufacturing cost occupies height not
Down it is difficult to realize scale volume production, they are also all confined to the application of particular/special requirement.
Content of the invention
It is an object of the invention to provide a kind of Graphene composite powder thermal spraying combined wire and preparation method thereof, this is multiple
Close welding wire to prepare by thermal spray process mode and there is the composite that Graphene strengthens compound layer as raw material, from
And improve case hardness and the anti-wear performance of material.
The present invention adopts following scheme to solve one of above-mentioned technical problem：A kind of Graphene composite powder thermal spraying Combined Welding
Silk, is made up of tubular wrapper material and filling filler powder therein；Described tubular wrapper material is mild steel or low-alloy steel,
Described filler powder is Fe base graphene powder, ceramic particle, B, Cr, Ni, refractory metal, nanoscale Al2O3The mixing of powder
Thing, the weight of its each composition is than for Fe base graphene powder：Ceramic particle：B：Cr：Ni：Refractory metal：Nanoscale Al2O3Powder
=40-85：1-10：2.6-5：2-20：1-4：1-5：5-20, wherein, in described Fe base graphene powder, the mass ratio of Fe and C is
40-80：1.6-2.5.
Optimize, described ceramic particle comprises SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
Optimize, described refractory metal is at least one in V, Nb, Ta, Mo, W.
The present invention adopts following scheme to solve the two of above-mentioned technical problem：A kind of Graphene composite powder heat as above
The preparation method of spraying combined wire, comprises the steps：
A) choosing the graphite powder that particle diameter is 100-500nm with particle diameter is the iron powder of 53um (270 mesh) -96um (160 mesh), presses
Compare 1 according to weight：The ratio of 8-20 is weighed respectively；
B) above-mentioned graphite powder and iron powder are put in drying baker and be dried, 100-150 DEG C of insulation 0.5-2.0 hour；
C) graphite powder being dried and iron powder in stepb are quickly proceeded in mechanical mixture container, start mechanical mixture and hold
Device pivots, and makes described graphite powder and iron powder mutually collide combination, the velocity of rotation of described mechanical mixture container is 10
120rpm, incorporation time is 2-12 hour；
D) after the completion of mixing, said mixture is sieved with the diagrid of 270 mesh, retained without 270 mesh sieve holes
Powder, as described Graphene composite powder powder；
E) by the Graphene obtaining in step d composite powder powder and described ceramic particle, B, Cr, Ni, refractory metal, receive
Meter level Al2O3Powder mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then will
Filler powder is filled to described tubular wrapper material, that is, obtain described Graphene composite powder thermal spraying combined wire；
Wherein, described mechanical mixture container includes cylindrical shape rustless steel container tank, horizontal fixing axle and driving level admittedly
The driving means of System of Rotating about Fixed Axis；Described container tank two ends are provided with the valve inserted for powder and take out, and described container tank is solid
It is scheduled in horizontal fixing axle, and shaft core becomes 15 ° of -45 ° of angles with horizontal fixing axle, described container tank is with horizontal fixing axle as axle center
Rotated.
It is an advantage of the current invention that：The invention provides a kind of welding stick original material strengthening composite for processing graphite alkene
And preparation method thereof, above-mentioned welding stick original material can generate equally distributed few layer graphite by thermal spray process mode in substrate surface
Alkene crystal grain thinning, thus improve case hardness and the anti-wear performance of base material；The welding wire preparation technology of the present invention is easy, is suitable for big
Large-scale production manufactures, and is conducive to the extensive application of grapheme material.
Brief description
Fig. 1 is the process chart of the present invention；
Fig. 2 is mechanical mixture process schematic in the present invention.
Specific embodiment
Embodiment 1
A kind of Graphene composite powder thermal spraying combined wire, by tubular wrapper material and filling filler powder therein group
Become；Described tubular wrapper material be mild steel or low-alloy steel, described filler powder be Fe base graphene powder, ceramic particle,
B, Cr, Ni, Ta, nanoscale Al2O3The mixture of powder, the weight of its each composition is than for Fe base graphene powder：Ceramic particle：
B：Cr：Ni：Ta：Nanoscale Al2O3Powder=60：7：2.6：14.4：1：2：13, wherein, in described Fe base graphene powder Fe with
The mass ratio of C is 58：2.
Wherein, described ceramic particle comprises SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
As shown in figure 1, the preparation method of above-mentioned Graphene composite powder thermal spraying combined wire, comprise the steps：
A) choosing the graphite powder that particle diameter is 100-500nm with particle diameter is the iron powder of 53um (270 mesh) -96um (160 mesh), presses
Compare 1 according to weight：16 ratio is weighed respectively；
B) above-mentioned graphite powder and iron powder are put in drying baker and be dried, 130 DEG C are incubated 1 hour；
C) graphite powder being dried and iron powder in stepb are quickly proceeded in mechanical mixture container, start mechanical mixture and hold
Device pivots, and makes described graphite powder and iron powder mutually collide combination, the velocity of rotation of described mechanical mixture container is 90rpm,
Incorporation time is 10 hours；
D) after the completion of mixing, said mixture is sieved with the diagrid of 270 mesh, retained without 270 mesh sieve holes
Powder, as described Graphene composite powder powder；
E) by the Graphene obtaining in step d composite powder powder and described ceramic particle, B, Cr, Ni, Ta, nanoscale
Al2O3Powder mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then by filler
Powder is filled to described tubular wrapper material, that is, obtain described Graphene composite powder thermal spraying combined wire；
Wherein, described mechanical mixture container includes cylindrical shape rustless steel container tank, horizontal fixing axle and driving level admittedly
The driving means of System of Rotating about Fixed Axis；Described container tank two ends are provided with the valve inserted for powder and take out, and described container tank is solid
It is scheduled in horizontal fixing axle, and shaft core becomes 35 ° of angles with horizontal fixing axle, described container tank is carried out for axle center with horizontal fixing axle
Rotation (as shown in Figure 2)；The diameter of described container tank and aspect ratio are 1:1.5.
Graphene composite powder thermal spraying combined wire former material of the present invention, can be by thermal spray process mode in base
The equally distributed few layer graphene crystal grain thinning of one layer of material Surface Creation, thus improve case hardness and the wearability of base material
Energy；The welding wire preparation technology of the present invention is easy, and suitable large-scale production manufacture is conducive to the extensive application of grapheme material.
Embodiment 2
A kind of Graphene composite powder thermal spraying combined wire, by tubular wrapper material and filling filler powder therein group
Become；Described tubular wrapper material be mild steel or low-alloy steel, described filler powder be Fe base graphene powder, ceramic particle,
B, Cr, Ni, W, nanoscale Al2O3The mixture of powder, the weight of its each composition is than for Fe base graphene powder：Ceramic particle：B：
Cr：Ni：W：Nanoscale Al2O3Powder=70：5：5：7：1：2：10, wherein, the quality of Fe and C in described Fe base graphene powder
Than for 68：2.
Wherein, described ceramic particle comprises SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
As shown in figure 1, the preparation method of above-mentioned Graphene composite powder thermal spraying combined wire, comprise the steps：
A) choosing the graphite powder that particle diameter is 100-500nm with particle diameter is the iron powder of 53um (270 mesh) -96um (160 mesh), presses
Compare 1 according to weight：18 ratio is weighed respectively；
B) above-mentioned graphite powder and iron powder are put in drying baker and be dried, 110 DEG C are incubated 1.2 hours；
C) graphite powder being dried and iron powder in stepb are quickly proceeded in mechanical mixture container, start mechanical mixture and hold
Device pivots, and makes described graphite powder and iron powder mutually collide combination, the velocity of rotation of described mechanical mixture container is 100rpm,
Incorporation time is 6 hours；
D) after the completion of mixing, said mixture is sieved with the diagrid of 270 mesh, retained without 270 mesh sieve holes
Powder, as described Graphene composite powder powder；
E) by the Graphene obtaining in step d composite powder powder and described ceramic particle, B, Cr, Ni, W, nanoscale
Al2O3Powder mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then by filler
Powder is filled to described tubular wrapper material, that is, obtain described Graphene composite powder thermal spraying combined wire；
Wherein, described mechanical mixture container includes cylindrical shape rustless steel container tank, horizontal fixing axle and driving level admittedly
The driving means of System of Rotating about Fixed Axis；Described container tank two ends are provided with the valve inserted for powder and take out, and described container tank is solid
It is scheduled in horizontal fixing axle, and shaft core becomes 40 ° of angles with horizontal fixing axle, described container tank is carried out for axle center with horizontal fixing axle
Rotation (as shown in Figure 2)；The diameter of described container tank and aspect ratio are 1:2.
Embodiment 3
A kind of Graphene composite powder thermal spraying combined wire, by tubular wrapper material and filling filler powder therein group
Become；Described tubular wrapper material be mild steel or low-alloy steel, described filler powder be Fe base graphene powder, ceramic particle,
B, Cr, Ni, Nb, nanoscale Al2O3The mixture of powder, the weight of its each composition is than for Fe base graphene powder：Ceramic particle：
B：Cr：Ni：Nb：Nanoscale Al2O3Powder=75：5：4.5：5：1：1：8.5, wherein, Fe and C in described Fe base graphene powder
Mass ratio be 72.5：2.5.
Wherein, described ceramic particle comprises SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
As shown in figure 1, the preparation method of above-mentioned Graphene composite powder thermal spraying combined wire, comprise the steps：
A) choosing the graphite powder that particle diameter is 100-500nm with particle diameter is the iron powder of 53um (270 mesh) -96um (160 mesh), presses
Compare 1 according to weight：18 ratio is weighed respectively；
B) above-mentioned graphite powder and iron powder are put in drying baker and be dried, 120 DEG C are incubated 0.5 hour；
C) graphite powder being dried and iron powder in stepb are quickly proceeded in mechanical mixture container, start mechanical mixture and hold
Device pivots, and makes described graphite powder and iron powder mutually collide combination, the velocity of rotation of described mechanical mixture container is 120rpm,
Incorporation time is 3 hours；
D) after the completion of mixing, said mixture is sieved with the diagrid of 270 mesh, retained without 270 mesh sieve holes
Powder, as described Graphene composite powder powder；
E) by the Graphene obtaining in step d composite powder powder and described ceramic particle, B, Cr, Ni, Nb, nanoscale
Al2O3Powder mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then by filler
Powder is filled to described tubular wrapper material, that is, obtain described Graphene composite powder thermal spraying combined wire；
Wherein, described mechanical mixture container includes cylindrical shape rustless steel container tank, horizontal fixing axle and driving level admittedly
The driving means of System of Rotating about Fixed Axis；Described container tank two ends are provided with the valve inserted for powder and take out, and described container tank is solid
It is scheduled in horizontal fixing axle, and shaft core becomes 20 ° of angles with horizontal fixing axle, described container tank is carried out for axle center with horizontal fixing axle
Rotation (as shown in Figure 2)；The diameter of described container tank and aspect ratio are 1:2.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (4)
1. a kind of Graphene composite powder thermal spraying combined wire is it is characterised in that therein by tubular wrapper material and filling
Filler powder forms；Described tubular wrapper material be mild steel or low-alloy steel, described filler powder be Fe base graphene powder,
Ceramic particle, B, Cr, Ni, refractory metal, nanoscale Al2O3The mixture of powder, the weight of its each composition is than for Fe base Graphene
Powder：Ceramic particle：B：Cr：Ni：Refractory metal：Nanoscale Al2O3Powder=40-85：1-10：2.6-5：2-20：1-4：1-5：
5-20, wherein, in described Fe base graphene powder, the mass ratio of Fe and C is 40-80：1.6-2.5.
2. Graphene composite powder thermal spraying combined wire as claimed in claim 1 is it is characterised in that described ceramic particle bag
Containing SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
3. Graphene composite powder thermal spraying combined wire as claimed in claim 1 is it is characterised in that described refractory metal is
At least one in V, Nb, Ta, Mo, W.
4. the preparation method of Graphene composite powder thermal spraying combined wire as claimed in claim 1 is it is characterised in that include
Following steps：
A) choosing the graphite powder that particle diameter is 100-500nm with particle diameter is the iron powder of 53um-96um, compares 1 according to weight：The ratio of 8-20
Example is weighed respectively；
B) above-mentioned graphite powder and iron powder are put in drying baker and be dried, be incubated 0.5-2.0 hour at 100-150 DEG C；
C) graphite powder being dried and iron powder in stepb are quickly proceeded in mechanical mixture container, start mechanical stainless steel around
Axle rotates, and makes described graphite powder and iron powder mutually collide combination, the velocity of rotation of described mechanical mixture container is 10 120rpm,
Incorporation time is 2-12 hour；
D) after the completion of mixing, said mixture is sieved with the diagrid of 270 mesh, is retained the powder without 270 mesh sieve holes,
It is described Graphene composite powder powder；
E) by the Graphene obtaining in step d composite powder powder and described ceramic particle, B, Cr, Ni, refractory metal, nanoscale
Al2O3Powder mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then by filler
Powder is filled to described tubular wrapper material, that is, obtain described Graphene composite powder thermal spraying combined wire；
Wherein, described mechanical mixture container includes cylindrical shape rustless steel container tank, horizontal fixing axle and the horizontal fixing axle of driving
The driving means of rotation；Described container tank two ends are provided with the valve inserted for powder and take out, and described container tank is fixed on
In horizontal fixing axle, and shaft core becomes 15 ° of -45 ° of angles with horizontal fixing axle, and described container tank is carried out with horizontal fixing axle for axle center
Rotation；The diameter of described container tank and aspect ratio are 1:1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610826722.1A CN106378551A (en) | 2016-09-18 | 2016-09-18 | Graphene composite powder thermal spraying composite welding wire and preparation method thereof |
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| CN201610826722.1A CN106378551A (en) | 2016-09-18 | 2016-09-18 | Graphene composite powder thermal spraying composite welding wire and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858293A (en) * | 2006-06-09 | 2006-11-08 | 北京工业大学 | Nano micrometer modefied wear resistant erosion resistant thermal coated tubular wire |
| US20120077017A1 (en) * | 2009-06-03 | 2012-03-29 | Isabell Buresch | Process for producing a metal matrix composite material |
| CN103212924A (en) * | 2013-04-11 | 2013-07-24 | 西安交通大学 | Graphene-coated copper welding wire for electronic packaging and preparation method for graphene-coated copper welding wire |
| CN203291781U (en) * | 2013-05-25 | 2013-11-20 | 揭东巴黎万株纱华纺织有限公司 | Mixing device |
| US20150099140A1 (en) * | 2013-10-09 | 2015-04-09 | Hobart Brothers Company | Systems and methods for corrosion-resistant welding electrodes |
| CN104607823A (en) * | 2014-12-12 | 2015-05-13 | 南京大学 | Manufacturing method of spherical self-fluxing alloy solder |
-
2016
- 2016-09-18 CN CN201610826722.1A patent/CN106378551A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858293A (en) * | 2006-06-09 | 2006-11-08 | 北京工业大学 | Nano micrometer modefied wear resistant erosion resistant thermal coated tubular wire |
| US20120077017A1 (en) * | 2009-06-03 | 2012-03-29 | Isabell Buresch | Process for producing a metal matrix composite material |
| CN103212924A (en) * | 2013-04-11 | 2013-07-24 | 西安交通大学 | Graphene-coated copper welding wire for electronic packaging and preparation method for graphene-coated copper welding wire |
| CN203291781U (en) * | 2013-05-25 | 2013-11-20 | 揭东巴黎万株纱华纺织有限公司 | Mixing device |
| US20150099140A1 (en) * | 2013-10-09 | 2015-04-09 | Hobart Brothers Company | Systems and methods for corrosion-resistant welding electrodes |
| CN104607823A (en) * | 2014-12-12 | 2015-05-13 | 南京大学 | Manufacturing method of spherical self-fluxing alloy solder |
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