CN106350757A - Method for preparing modified iron-based graphene enhanced composite material by thermal spraying - Google Patents
Method for preparing modified iron-based graphene enhanced composite material by thermal spraying Download PDFInfo
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- CN106350757A CN106350757A CN201610826269.4A CN201610826269A CN106350757A CN 106350757 A CN106350757 A CN 106350757A CN 201610826269 A CN201610826269 A CN 201610826269A CN 106350757 A CN106350757 A CN 106350757A
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- powder
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- iron
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- base graphene
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
Abstract
The invention discloses a method for preparing a modified iron-based graphene enhanced composite material by thermal spraying. The method includes steps: a) performing sand blasting for clearing residuals on the surface of a substrate; b) on a thermal spraying layer, adopting a modified iron-based graphene composite welding wire for thermal spraying of the surface of the substrate. The iron-based graphene thermal spraying composite welding wire is prepared from a tubular coating material and filler powder, the tubular coating material is low-carbon steel or low-alloy steel, and the filler powder is a mixture of Fe-based graphene powder, ceramic particles, B, Cr, Ni, refractory metal and nanoscale Al2O3 powder. A 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 40-85:1-10:0.1-2.5:2-20:1-4:1-5:5-20, and a mass ratio of Fe to C in the Fe-based graphene powder is 40-80:3.6-5.
Description
Technical field
The invention belongs to thermal spray process technical field is and in particular to prepare Modified Iron base Graphene using heat spraying method
The method strengthening composite.
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 × 105cm simultaneously2·
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 enhancing al base,
Ni base, cu based composites.In blocky graphite alkene enhancing modified iron base composite material, Graphene is distributed on crystal boundary, refinement
Crystal 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.
The characteristic being had by Graphene, is suitable for needing wearing layer to realize abrasionproof purpose application various.Special
It is not the modification application of the contact surface having sliding frictional wear or rolling friction abrasion.
Content of the invention
It is an object of the invention to provide a kind of prepare Modified Iron base Graphene enhancing composite using heat spraying method
Method, the method can coat out few layer graphene in matrix surface and strengthen layer, thus substantially increasing the surface of matrix
Hardness and anti-wear performance.
The present invention adopts following scheme to solve above-mentioned technical problem: prepares Modified Iron base Graphene using heat spraying method and increases
The method of strong composite is it is characterised in that comprise the steps:
A) residual substance of matrix surface is removed in sandblasting by polishing mode, makes matrix surface coarse, improves matrix and spray
Apply the bond strength of interlayer；
B) thermal jet working lining adopts thermal spraying spray gun and Modified Iron base Graphene thermal spraying combined wire, to described matrix table
Face carries out thermal spraying, makes the few layer iron-based Graphene of described matrix Surface Creation strengthen composite coating, this coating surface includes all
Few layer graphene crystal grain thinning of even distribution；
Wherein, described Modified Iron base Graphene thermal spraying combined wire is by tubular wrapper material and filling filler therein powder
End composition；Described tubular wrapper material is mild steel or low-alloy steel, and described filler powder is fe base graphene powder, pottery
Grain, 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=40-85:1-10:0.1-2.5:2-20:1-4:1-5:5-
20, wherein, in described fe base graphene powder, the mass ratio of fe and c is 40-80:3.6-5.
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.
Optimize, operation construction is carried out using ultrasonic electric arc spray device, its running voltage is 18-40v, operating current
For 180-500a, spray coating operations distance is 200-800mm, and compressed air pressure is 0.4-1.0mpa.
Optimize, described Modified Iron base Graphene thermal spraying combined wire is prepared from by following steps:
A) choosing the graphite powder that particle diameter is 100-500nm with particle diameter is the iron powder of 53-96um, according to weight than 1:8-20's
Ratio is weighed respectively；
B) above-mentioned graphite powder and iron powder are put in drying baker and be dried, 100 150 DEG C are incubated 0.5 2.0 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 10
120rpm, mixing time is 2-12 hour；
D) after the completion of stirring, said mixture is sieved with the diagrid of 270 mesh, retained without 270 mesh sieve holes
Powder, as described iron-based graphene powder；
E) by the iron-based obtaining in step d graphene 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 Modified Iron base Graphene 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；The diameter of described container tank and aspect ratio are 1:1-3.
It is an advantage of the current invention that: the present invention adopts a kind of iron-based Graphene combined wire, by heat spraying method, in base
The few layer graphene of body Surface Creation strengthens iron-based composite coating, thus improve case hardness and the anti-wear performance of matrix；This ferrum
Base Graphene combined wire contains the composition that can improve base material-thermally sprayed coating interface bond strength and sealing of hole, accordingly, with respect to biography
The hot-spraying technique of system, the operation sequence of the present invention more simplifies, and substantially increases work efficiency and coating quality；The present invention's
Solder wire material preparation technology is easy, and with low cost, suitable large-scale production manufacture is conducive to the extensive application of grapheme material.
Brief description
Fig. 1 is the process chart of iron-based Graphene composite solder in the embodiment of the present invention；
Fig. 2 is mechanical mixture container mechanical mixture process schematic in the embodiment of the present invention.
Specific embodiment
Embodiment 1
Using heat spraying method prepare Modified Iron base Graphene strengthen composite method it is characterised in that include as
Lower step:
A) residual substance of matrix surface is removed in sandblasting by polishing mode, makes matrix surface coarse, improves matrix and spray
Apply the bond strength of interlayer；
B) thermal jet working lining adopts thermal spraying spray gun and Modified Iron base Graphene thermal spraying combined wire, to described matrix table
Face carries out thermal spraying, makes the few layer iron-based Graphene of described matrix Surface Creation strengthen composite coating, this coating surface includes all
Few layer graphene crystal grain thinning of even distribution；
Wherein, described Modified Iron base Graphene thermal spraying combined wire is by tubular wrapper material and filling filler therein powder
End composition；Described tubular wrapper material is mild steel or low-alloy steel, and described filler powder is fe base graphene powder, pottery
Grain, b, cr, ni, ta, nanoscale al2o3The mixture of powder, the weight of its each composition ratio is for fe base graphene powder: pottery
Grain: b:cr:ni:ta: nanoscale al2o3Powder=72:4:0.2:10.8:1:2:10, wherein, in described fe base graphene powder
The mass ratio of fe and c is 68:4.
Described ceramic particle comprises sic, b4c、bn、sio2、tic、al2o3Composition.
Operation construction is carried out using ultrasonic electric arc spray device, its running voltage is 18-40v, operating current is 180-
500a, spray coating operations distance is 200-800mm, and compressed air pressure is 0.4-1.0mpa.
Described Modified Iron base Graphene thermal spraying combined wire is prepared from by following 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
Weigh respectively according to the ratio than 1:16 for the weight；
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 iron-based graphene powder；
E) by the iron-based obtaining in step d graphene powder 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 is filled out
It is charged in described tubular wrapper material, that is, obtain described Modified Iron base Graphene 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.
The present invention adopts a kind of iron-based Graphene combined wire, by heat spraying method, generates few layer stone in matrix surface
Black alkene strengthens iron-based composite coating, thus improve case hardness and the anti-wear performance of matrix；This iron-based Graphene combined wire
Containing the composition that can improve base material-thermally sprayed coating interface bond strength and sealing of hole, accordingly, with respect to traditional hot-spraying technique,
The operating process of the present invention eliminates thermal jet prime coat and application hole sealing agent two procedures, and operation more more simplifies, and significantly carries
High work efficiency and coating quality；The solder wire material preparation technology of the present invention is easy, with low cost, suitable large-scale production system
Make, be conducive to the extensive application of grapheme material.
Embodiment 2
Using heat spraying method prepare Modified Iron base Graphene strengthen composite method it is characterised in that include as
Lower step:
A) residual substance of matrix surface is removed in sandblasting by polishing mode, makes matrix surface coarse, improves matrix and spray
Apply the bond strength of interlayer；
B) thermal jet working lining adopts thermal spraying spray gun and Modified Iron base Graphene thermal spraying combined wire, to described matrix table
Face carries out thermal spraying, makes the few layer iron-based Graphene of described matrix Surface Creation strengthen composite coating, this coating surface includes all
Few layer graphene crystal grain thinning of even distribution；
Wherein, described Modified Iron base Graphene thermal spraying combined wire is by tubular wrapper material and filling filler therein powder
End composition；Described tubular wrapper material is mild steel or low-alloy steel, and described filler powder is fe base graphene powder, pottery
Grain, b, cr, ni, nb, nanoscale al2o3The mixture of powder, the weight of its each composition ratio is for fe base graphene powder: pottery
Grain: b:cr:ni:nb: nanoscale al2o3Powder=69:5:1.5:10:1:2:11.5, wherein, in described fe base graphene powder
The mass ratio of fe and c is 65.2:3.8.
Described ceramic particle comprises sic, b4c、bn、sio2、tic、al2o3Composition.
Operation construction is carried out using ultrasonic electric arc spray device, its running voltage is 18-40v, operating current is 180-
500a, spray coating operations distance is 200-800mm, and compressed air pressure is 0.4-1.0mpa.
Described Modified Iron base Graphene thermal spraying combined wire is prepared from by following 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
Weigh respectively according to the ratio than 1:18 for the weight；
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 iron-based graphene powder；
E) by the iron-based obtaining in step d graphene powder 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 is filled out
It is charged in described tubular wrapper material, that is, obtain described Modified Iron base Graphene 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
Using heat spraying method prepare Modified Iron base Graphene strengthen composite method it is characterised in that include as
Lower step:
A) residual substance of matrix surface is removed in sandblasting by polishing mode, makes matrix surface coarse, improves matrix and spray
Apply the bond strength of interlayer；
B) thermal jet working lining adopts thermal spraying spray gun and Modified Iron base Graphene thermal spraying combined wire, to described matrix table
Face carries out thermal spraying, makes the few layer iron-based Graphene of described matrix Surface Creation strengthen composite coating, this coating surface includes all
Few layer graphene crystal grain thinning of even distribution；
Wherein, described Modified Iron base Graphene thermal spraying combined wire is by tubular wrapper material and filling filler therein powder
End composition；Described tubular wrapper material is mild steel or low-alloy steel, and described filler powder is fe base graphene powder, pottery
Grain, b, cr, ni, v, nanoscale al2o3The mixture of powder, the weight of its each composition ratio is for fe base graphene powder: pottery
Grain: b:cr:ni:v: nanoscale al2o3Powder=64:5:2.5:9:1:1:8.5, wherein, in described fe base graphene powder fe with
The mass ratio of c is 60:4.
Described ceramic particle comprises sic, b4c、bn、sio2、tic、al2o3Composition.
Operation construction is carried out using ultrasonic electric arc spray device, its running voltage is 18-40v, operating current is 180-
500a, spray coating operations distance is 200-800mm, and compressed air pressure is 0.4-1.0mpa.
Described Modified Iron base Graphene thermal spraying combined wire is prepared from by following 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
Weigh respectively according to the ratio than 1:18 for the weight；
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 iron-based graphene powder；
E) by the iron-based obtaining in step d graphene powder 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 is filled out
It is charged in described tubular wrapper material, that is, obtain described Modified Iron base Graphene 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 (5)
1. prepare Modified Iron base Graphene using heat spraying method and strengthen the method for composite it is characterised in that including as follows
Step:
A) residual substance of matrix surface is removed in sandblasting by polishing mode, makes matrix surface coarse, improves matrix and sprayed coating
Between bond strength；
B) thermal jet working lining adopts thermal spraying spray gun and Modified Iron base Graphene thermal spraying combined wire, and described matrix surface is entered
Row thermal spraying, makes the few layer iron-based Graphene of described matrix Surface Creation strengthen composite coating, this coating surface includes and uniformly divides
Few layer graphene crystal grain thinning of cloth；
Wherein, described Modified Iron base Graphene thermal spraying combined wire is 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, refractory metal, nanoscale al2o3The mixture of powder, the weight of its each composition is than for fe base graphene powder: pottery
Granule: b:cr:ni: refractory metal: nanoscale al2o3Powder=40-85:1-10:0.1-2.5:2-20:1-4:1-5:5-20, its
In, in described fe base graphene powder, the mass ratio of fe and c is 40-80:3.6-5.
2. use heat spraying method as claimed in claim 1 prepares the method that Modified Iron base Graphene strengthens composite, its
It is characterised by, described ceramic particle comprises sic, b4c、bn、sio2、tic、al2o3Composition.
3. use heat spraying method as claimed in claim 1 prepares the method that Modified Iron base Graphene strengthens composite, its
It is characterised by, described refractory metal is at least one in v, nb, ta, mo, w.
4. use heat spraying method as claimed in claim 1 prepares the method that Modified Iron base Graphene strengthens composite, its
It is characterised by, carry out operation construction using ultrasonic electric arc spray device, its running voltage is 18-40v, and operating current is 180-
500a, spray coating operations distance is 200-800mm, and compressed air pressure is 0.4-1.0mpa.
5. use heat spraying method as claimed in claim 1 prepares the method that Modified Iron base Graphene strengthens composite, its
It is characterised by, described Modified Iron base Graphene thermal spraying combined wire is prepared from by following steps:
A) choosing the graphite powder that particle diameter is 100-500nm with particle diameter is the iron powder of 53-96um, according to the ratio than 1:8-20 for the weight
Weigh respectively；
B) above-mentioned graphite powder and iron powder are put in drying baker and be dried, 100 150 DEG C are incubated 0.5 2.0 hours；
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,
Mixing time is 2-12 hour；
D) after the completion of stirring, said mixture is sieved with the diagrid of 270 mesh, is retained the powder without 270 mesh sieve holes,
It is described iron-based graphene powder；
E) by the iron-based obtaining in step d graphene powder 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, that is, obtain described Modified Iron base Graphene 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.
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| CN201610826269.4A CN106350757A (en) | 2016-09-18 | 2016-09-18 | Method for preparing modified iron-based graphene enhanced composite material by thermal spraying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108866469A (en) * | 2018-07-27 | 2018-11-23 | 合肥岑遥新材料科技有限公司 | A kind of metal matrix ceramic composites for furnace roller thermal spraying on surface |
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| US20120077017A1 (en) * | 2009-06-03 | 2012-03-29 | Isabell Buresch | Process for producing a metal matrix composite material |
| CN104419889A (en) * | 2013-09-04 | 2015-03-18 | 天津大学 | Pore-sealing method for thermal spray coating by virtue of nanometer aluminum oxide and application of method |
-
2016
- 2016-09-18 CN CN201610826269.4A patent/CN106350757A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120077017A1 (en) * | 2009-06-03 | 2012-03-29 | Isabell Buresch | Process for producing a metal matrix composite material |
| CN104419889A (en) * | 2013-09-04 | 2015-03-18 | 天津大学 | Pore-sealing method for thermal spray coating by virtue of nanometer aluminum oxide and application of method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108866469A (en) * | 2018-07-27 | 2018-11-23 | 合肥岑遥新材料科技有限公司 | A kind of metal matrix ceramic composites for furnace roller thermal spraying on surface |
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