CN106312368A - Fe-based graphene thermal spraying composite welding wire and preparation method thereof - Google Patents
Fe-based graphene thermal spraying composite welding wire and preparation method thereof Download PDFInfo
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- CN106312368A CN106312368A CN201610826724.0A CN201610826724A CN106312368A CN 106312368 A CN106312368 A CN 106312368A CN 201610826724 A CN201610826724 A CN 201610826724A CN 106312368 A CN106312368 A CN 106312368A
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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
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
-
- 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
- B23K35/406—Filled tubular wire or rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a Fe-based graphene thermal spraying composite welding wire and a preparation method of the Fe-based graphene thermal spraying composite welding wire. The composite welding wire is prepared from tubular wrapping materials and filler powder, the tubular wrapping materials are low-carbon steel or low alloy steel, and the filler powder is the mixture of Fe-based graphene powder, ceramic particles, B, Cr, Ni, refractory metal and nanoscale Al2O3 powder, wherein the weight ratio of the Fe-based graphene powder to the ceramic particles to the B to the Cr to the Ni to the refractory metal to the nanoscale Al2O3 powder is 40-85:1-10:6-6.9:2-20:1-4:1-5:5-20, and the mass ratio of Fe to C in the Fe-based graphene powder is 40-80:0.1-1.5. The Fe-based graphene thermal spraying composite welding wire and the preparation method of the Fe-based graphene thermal spraying composite welding wire have the advantages that the welding wire raw material and the preparation method are provided, a small number of layers of graphene refined grains are generated on the surface of a base material in a thermal spraying mode, and the surface hardness and wear resistance of the base material are improved.
Description
Technical field
The present invention relates to graphene composite material technical field, specific design one iron-based graphene thermal spraying combined 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
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 modulus is 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 by extensively
It is used for preparing various new material, particularly functional composite material.
The research starting that Graphene strengthens structural composite material is late, currently mainly concentrates on and prepares Graphene REINFORCED Al base,
Ni base, Cu based composites.In blocky graphite alkene strengthens metal-base composites, Graphene is distributed on crystal boundary, refinement crystalline substance
Grain, improves yield strength and the effect of hardness of material.The preparation process very complicated of these materials, manufacturing cost occupies height not
Under, it is difficult to realizing scale volume production, they are the most all confined to the application of particular/special requirement.
Summary of the invention
It is an object of the invention to provide a kind of iron-based graphene thermal spraying combined wire and preparation method thereof, this Combined Welding
Silk can be prepared the composite with the compound layer of Graphene enhancing as raw material, thus carry by thermal spray process mode
The case hardness of high material and anti-wear performance.
The present invention uses following scheme to solve one of above-mentioned technical problem: a kind of iron-based graphene thermal sprays combined wire,
It is made up of tubular wrapper material and filling filler powder therein；Described tubular wrapper material is mild steel or low-alloy steel, institute
Stating filler powder is Fe base graphene powder, ceramic particle, B, Cr, Ni, refractory metal, nanoscale Al2O3The mixture of powder,
The weight ratio of its each composition is Fe base graphene powder: ceramic particle: B:Cr:Ni: refractory metal: nanoscale Al2O3Powder=
40-85:1-10:7.6-10:2-20:1-4:1-5:5-20, wherein, in described Fe base graphene powder, the mass ratio of Fe with C is
40-80:0.1-1.5.
Optimizing, described ceramic particle comprises SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
Optimizing, described refractory metal is at least one in V, Nb, Ta, Mo, W.
The present invention uses following scheme to solve the two of above-mentioned technical problem: a kind of iron-based graphene thermal as above sprays
The preparation method of combined wire, comprises the steps:
A) choose the graphite powder that particle diameter is 100-500nm and the iron powder that particle diameter is 53um (270 mesh)-96um (160 mesh), press
Ratio according to weight ratio 1:8-20 is weighed respectively；
B) above-mentioned graphite powder and iron powder being put in drying baker and be dried, 100-150 DEG C is incubated 0.5-2.0 hour；
C) graphite powder and the iron powder that are dried 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, and the velocity of rotation of described mechanical mixture container is 10
120rpm, incorporation time is 2-12 hour；
D) after having mixed, the said mixture diagrid of 270 mesh is sieved, retain without 270 mesh sieve holes
Powder, is described iron-based graphene powder；
E) by the iron-based graphene powder obtained in step d 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, i.e. obtains described iron-based graphene thermal spraying combined wire；
Wherein, described mechanical mixture container includes that cylindrical shape rustless steel container tank, level fix axle and driving level is solid
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
The level of being scheduled on is fixed on axle, and shaft core is fixed axle and become 15 ° of-45 ° of angles with level, and described container tank fixes axle as axle center with level
Rotate.
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 at 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, beneficially the extensive application of grapheme material.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention；
Fig. 2 is mechanical mixture process schematic in the present invention.
Detailed description of the invention
Embodiment 1
A kind of iron-based graphene thermal spraying combined wire, 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 be Fe base graphene powder, ceramic particle, B,
Cr, Ni, Ta, nanoscale Al2O3The mixture of powder, the weight ratio of its each composition is Fe base graphene powder: ceramic particle: B:
Cr:Ni:Ta: nanoscale Al2O3Powder=60:7:8:8:2:2:13, wherein, the quality of Fe Yu C in described Fe base graphene powder
Ratio is 59.5:0.5.
Wherein, described ceramic particle comprises SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
As it is shown in figure 1, the preparation method of above-mentioned iron-based graphene thermal spraying combined wire, comprise the steps:
A) choose the graphite powder that particle diameter is 100-500nm and the iron powder that particle diameter is 53um (270 mesh)-96um (160 mesh), press
Ratio according to weight ratio 1:16 is weighed respectively；
B) above-mentioned graphite powder and iron powder being put in drying baker and be dried, 130 DEG C are incubated 1 hour；
C) graphite powder and the iron powder that are dried 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, and the velocity of rotation of described mechanical mixture container is 90rpm,
Incorporation time is 10 hours；
D) after having mixed, the said mixture diagrid of 270 mesh is sieved, retain without 270 mesh sieve holes
Powder, is described iron-based graphene powder；
E) by the iron-based graphene powder obtained in step d and described ceramic particle, B, Cr, Ni, Ta, nanoscale Al2O3Powder
End mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then filler powder filled out
It is charged in described tubular wrapper material, i.e. obtains described iron-based graphene thermal spraying combined wire；
Wherein, described mechanical mixture container includes that cylindrical shape rustless steel container tank, level fix axle and driving level is solid
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
The level of being scheduled on is fixed on axle, and shaft core is fixed axle and become 35 ° of angles with level, and described container tank is fixed axle with level and carried out for axle center
Rotate (as shown in Figure 2)；The diameter of described container tank and aspect ratio are 1: 1.5.
The iron-based graphene thermal of the present invention spraying former material of combined wire, can be by thermal spray process mode at base material table
Face generates one layer of equally distributed few layer graphene crystal grain thinning, thus improves case hardness and the anti-wear performance of base material；This
The welding wire preparation technology of invention is easy, is suitable for the extensive application of large-scale production manufacture, beneficially grapheme material.
Embodiment 2
A kind of iron-based graphene thermal spraying combined wire, 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 be Fe base graphene powder, ceramic particle, B,
Cr, Ni, V, nanoscale Al2O3The mixture of powder, the weight ratio of its each composition is Fe base graphene powder: ceramic particle: B:
Cr:Ni:V: nanoscale Al2O3Powder=70:5:6:7.6:1:2:8.4, wherein, the matter of Fe Yu C in described Fe base graphene powder
Amount ratio is 68.7:1.3.
Wherein, described ceramic particle comprises SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
As it is shown in figure 1, the preparation method of above-mentioned iron-based graphene thermal spraying combined wire, comprise the steps:
A) choose the graphite powder that particle diameter is 100-500nm and the iron powder that particle diameter is 53um (270 mesh)-96um (160 mesh), press
Ratio according to weight ratio 1:18 is weighed respectively；
B) above-mentioned graphite powder and iron powder being put in drying baker and be dried, 110 DEG C are incubated 1.2 hours；
C) graphite powder and the iron powder that are dried 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, and the velocity of rotation of described mechanical mixture container is 100rpm,
Incorporation time is 6 hours；
D) after having mixed, the said mixture diagrid of 270 mesh is sieved, retain without 270 mesh sieve holes
Powder, is described iron-based graphene powder；
E) by the iron-based graphene powder obtained in step d and described ceramic particle, B, Cr, Ni, V, nanoscale Al2O3Powder
End mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then filler powder filled out
It is charged in described tubular wrapper material, i.e. obtains described iron-based graphene thermal spraying combined wire；
Wherein, described mechanical mixture container includes that cylindrical shape rustless steel container tank, level fix axle and driving level is solid
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
The level of being scheduled on is fixed on axle, and shaft core is fixed axle and become 40 ° of angles with level, and described container tank is fixed axle with level and carried out for axle center
Rotate (as shown in Figure 2)；The diameter of described container tank and aspect ratio are 1: 2.
Embodiment 3
A kind of iron-based graphene thermal spraying combined wire, 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 be Fe base graphene powder, ceramic particle, B,
Cr, Ni, Ta, nanoscale Al2O3The mixture of powder, the weight ratio of its each composition is Fe base graphene powder: ceramic particle: B:
Cr:Ni:Nb: nanoscale Al2O3Powder=71:5:10:5:2.1:1.9:5, wherein, Fe Yu C in described Fe base graphene powder
Mass ratio is 70:1.
Wherein, described ceramic particle comprises SiC, B4C、BN、SiO2、TiC、Al2O3Composition.
As it is shown in figure 1, the preparation method of above-mentioned iron-based graphene thermal spraying combined wire, comprise the steps:
A) choose the graphite powder that particle diameter is 100-500nm and the iron powder that particle diameter is 53um (270 mesh)-96um (160 mesh), press
Ratio according to weight ratio 1:18 is weighed respectively；
B) above-mentioned graphite powder and iron powder being put in drying baker and be dried, 120 DEG C are incubated 0.5 hour；
C) graphite powder and the iron powder that are dried 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, and the velocity of rotation of described mechanical mixture container is 120rpm,
Incorporation time is 3 hours；
D) after having mixed, the said mixture diagrid of 270 mesh is sieved, retain without 270 mesh sieve holes
Powder, is described iron-based graphene powder；
E) by the iron-based graphene powder obtained in step d and described ceramic particle, B, Cr, Ni, Nb, nanoscale Al2O3Powder
End mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then filler powder filled out
It is charged in described tubular wrapper material, i.e. obtains described iron-based graphene thermal spraying combined wire；
Wherein, described mechanical mixture container includes that cylindrical shape rustless steel container tank, level fix axle and driving level is solid
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
The level of being scheduled on is fixed on axle, and shaft core is fixed axle and become 20 ° of angles with level, and described container tank is fixed axle with level and carried out for axle center
Rotate (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 amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (4)
1. an iron-based graphene thermal spraying combined wire, it is characterised in that by tubular wrapper material and filling filler therein
Powder constituent；Described tubular wrapper material is mild steel or low-alloy steel, and described filler powder is Fe base graphene powder, pottery
Granule, B, Cr, Ni, refractory metal, nanoscale Al2O3The mixture of powder, the weight ratio of its each composition is Fe base Graphene powder
End: ceramic particle: B:Cr:Ni: refractory metal: nanoscale Al2O3Powder=40-85:1-10:7.6-10:2-20:1-4:1-5:
5-20, wherein, in described Fe base graphene powder, the mass ratio of Fe Yu C is 40-80:0.1-1.5.
2. iron-based graphene thermal spraying combined wire as claimed in claim 1, it is characterised in that described ceramic particle comprises
SiC、B4C、BN、SiO2、TiC、Al2O3Composition.
3. iron-based graphene thermal spraying combined wire as claimed in claim 1, it is characterised in that described refractory metal be V,
At least one in Nb, Ta, Mo, W.
4. the preparation method of iron-based graphene thermal spraying combined wire as claimed in claim 1, it is characterised in that include as follows
Step:
A) choosing the graphite powder that particle diameter is 100-500nm is the iron powder of 53um-96um with particle diameter, according to the ratio of weight ratio 1:8-20
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) by stepb be dried graphite powder and iron powder quickly proceed in mechanical mixture container, start mechanical mixture container around
Axle rotates, and makes described graphite powder and iron powder mutually collide combination, and the velocity of rotation of described mechanical mixture container is 10 120rpm,
Incorporation time is 2-12 hour；
D) after having mixed, the said mixture diagrid of 270 mesh is sieved, retains the powder without 270 mesh sieve holes,
It is described iron-based graphene powder；
E) by the iron-based graphene powder obtained in step d and described ceramic particle, B, Cr, Ni, refractory metal, nanoscale Al2O3
Powder mixes according to the above ratio, dries, places into mechanical mixture container mix homogeneously, obtain filler powder, then by filler powder
Fill to described tubular wrapper material, i.e. obtain described iron-based graphene thermal spraying combined wire；
Wherein, described mechanical mixture container includes that cylindrical shape rustless steel container tank, level fix axle and driving level fixes axle
The driving means rotated；Described container tank two ends are provided with the valve inserted for powder and take out, and described container tank is fixed on
Level is fixed on axle, and shaft core is fixed axle and become 15 ° of-45 ° of angles with level, and described container tank is fixed axle with level and carried out for axle center
Rotate；The diameter of described container tank and aspect ratio are 1: 1-3.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168273A (en) * | 2020-02-12 | 2020-05-19 | 郑州大学 | Flux-cored welding rod for stainless steel welding |
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Application publication date: 20170111 |