CN208883969U - Carbon fiber surface thermal spraying alloy coating - Google Patents
Carbon fiber surface thermal spraying alloy coating Download PDFInfo
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- CN208883969U CN208883969U CN201821465388.2U CN201821465388U CN208883969U CN 208883969 U CN208883969 U CN 208883969U CN 201821465388 U CN201821465388 U CN 201821465388U CN 208883969 U CN208883969 U CN 208883969U
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Abstract
The utility model relates to a kind of carbon fiber surface thermal spraying alloy coatings, belong to alloy coat technical field.Alloy coat from outward appearance to inner essence respectively includes alloy surface layer, transitional bonding layer and roughened layer；The hardness performance of the alloy coat are as follows: hardness >=HRC55 degree；Meanwhile bond strength >=18MPa of the alloy surface layer and the transitional bonding layer；Preparation method includes three steps: 1. substrate pretreated；2. roughing in surface；3. plasma spraying；The alloy coat is used to prepare alloy coat in carbon fiber surface, the coating hardness can achieve 60 degree of RHC, be firmly combined between transitional bonding layer, bond strength reaches 20MPa or so, the advantage for combining both materials of carbon fiber and nickel-base alloy well, is fully achieved requirement.
Description
Technical field
The utility model belongs to alloy coat technical field, and in particular to a kind of carbon fiber surface thermal spraying alloy coating.
Background technique
Carbon fiber is a kind of new material of excellent in mechanical performance, and it is 7-10 times of same cross-section steel that tensile strength is high.
Light-weight, density only has the 1/4 of common iron.Durability is good, can impedance chemical attack and adverse circumstances, climate change it is broken
It is bad.It is applied widely, the bearing capacity, anti-seismic performance and endurance quality of component can be increased substantially.
But carbon fiber rigidity is insufficient, therefore, in carbon fiber construction surface recombination alloy coat, it is hard can to increase surface
Degree and wearability, the characteristics of making both materials, complement one another, and advantages have in each mechanical equipment live-roller application aspect
Very big advantage.
But carbon fibre material forms metal using chemical plating and sol-gal process and applies with poor compatibility between metal material
Layer has the shortcomings that intensity is low, complex process, unsuitable large-scale promotion application.
Application No. is 201710066206.8 Chinese invention patents to disclose a kind of the resistant to high temperatures of carbon fibre composite
Oxidation protection layer preparation method directlys adopt High Speed Electric Arc Spraying machine on carbon fibre composite surface and sprays nickelic high chromium titanium
Alloy coat, however, carbon fiber roller surface is covered with one layer of organic resin, if directly in surface spraying coating, alloy powder melts
Resin melting layer can be made by changing the heat generated, and alloy coat is difficult to combine well therewith, causes anchoring strength of coating poor, even
Effective coating can not be formed.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of carbon fiber surface thermal spraying alloy coating, in carbon fiber
Surface prepares alloy coat, which can achieve 60 degree of RHC, is firmly combined between transitional bonding layer, bond strength
Reach 20MPa or so, combines the advantage of both materials of carbon fiber and nickel-base alloy well, requirement is fully achieved.
The technical solution that the utility model solves the above problems is as follows:
Carbon fiber surface thermal spraying alloy coating, from outward appearance to inner essence respectively includes alloy surface layer, transitional bonding layer and roughened layer；
The hardness performance of the alloy coat are as follows: hardness >=HRC55 degree；
Meanwhile bond strength >=18MPa of the alloy surface layer and the transitional bonding layer.
As a preferred embodiment of the above technical solution, the roughened layer is formed by white fused alumina sand through sandblasting.
As a preferred embodiment of the above technical solution, the mesh number of the white fused alumina sand is 60 mesh, the rough surface of the roughened layer
Degree is Ra=3 ~ 5 μm.
As a preferred embodiment of the above technical solution, the transitional bonding layer by aluminium powder through spraying, with a thickness of 0.1 ~
0.15mm。
As a preferred embodiment of the above technical solution, the alloy surface layer by Co-based alloy powder through spraying, with a thickness of
0.1~0.15mm。
As a preferred embodiment of the above technical solution, further include resin layer that the transitional bonding layer is penetrated into part.
The preparation method of carbon fiber surface thermal spraying alloy coating, includes the following steps:
1. substrate pretreated: organic solvent being used to clean to remove grease stain carbon fiber roller matrix under ultrasound condition；
2. roughing in surface: carrying out blasting treatment to the carbon fiber roller surface using white fused alumina sand, form roughened layer, pay attention to
Sandblasting is uniform, prevents excessive sandblasting from carbon fiber wire being caused to be broken, compressed air pressure 0.3MPa, makes to handle rear surface roughness
Reach Ra=3 ~ 5 μm；
3. plasma spraying: using plasma spraying equipment, using aluminium powder as transition bonding layer material, spraying forms thickness
For the transitional bonding layer with a thickness of 0.1 ~ 0.15mm, then using Co-based alloy powder as material spraying on the transitional bonding layer
Form the alloy surface layer with a thickness of 0.1 ~ 0.15mm.
Transition bonding layer material is mainly pure aluminium powder, and the fusing point of aluminium is low, is 660 DEG C, hardness is low, and ductility is good.When spraying
Spray power, powder feeding parameter and spray distance are controlled, aluminium powder is made to reach softening or slush state in plasma gun flame stream,
Flame stream makes powder is flat on matrix to sprawl and be unlikely to largely to splash powder acceleration, forms close layer structure.Simultaneously
Aluminium powder is relatively small to matrix heat input, and matrix surface organic resin layer is heated less, resin layer softening, bottom aluminium powder
Embedded resin layer forms good combination.Transitional bonding layer forms all standing, coating uniform to entire carbon fiber base material surface.
A laminated gold plating is sprayed again in transition layer surface
As a preferred embodiment of the above technical solution, step 1. in, using acetone to carbon fiber roller matrix under ultrasound condition into
Row cleaning, ultrasonic cleaning time are 30 minutes.
As a preferred embodiment of the above technical solution, step 2. in, select 60 mesh white fused alumina sand to the carbon fiber roller surface
Carry out blasting treatment.
As a preferred embodiment of the above technical solution, step 3. in, use power for 80KW plasma spraying equipment prepares coating,
Wherein, when preparing transitional bonding layer, spray power 20kW, when preparing alloy surface, spray power 35kW.
As a preferred embodiment of the above technical solution, step 3. in, pass through air-cooled and spraying rate and control carbon fiber roller matrix temperature
Degree, to mitigate influence of the process thermal stress to coating.
In conclusion the utility model embodiment has the advantages that
The utility model embodiment provides a kind of carbon fiber surface thermal spraying alloy coating, and alloy coat is used for carbon fiber surface
Face, the coating hardness can achieve 60 degree of RHC, be firmly combined between transitional bonding layer, and bond strength reaches 20MPa or so,
The advantage of both materials of carbon fiber and nickel-base alloy is combined well；
Carbon fiber live-roller through spray-on coating uses novel carbon fiber pipe surface thermal spraying alloy coating process, has
High intensity, high abrasion, light-weighted feature.Compared to traditional metallic roll, carbon fiber roller has very high dynamic equilibrium, realizes
Stablize rotation under ultrahigh speed state, so that transmission speed be made to greatly improve, while reducing energy consumption again.Surface alloy coating
Surface abrasion resistance is improved, service life is extended.
Detailed description of the invention
Fig. 1 is carbon fiber surface thermal spraying alloy coating structure schematic diagram；
In figure, alloy surface layer 1, transitional bonding layer 2, roughened layer 3.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the utility model a part of the embodiment, instead of all the embodiments.The embodiments of the present invention, this
It is practical new to belong to this for field those of ordinary skill all other embodiment obtained under the premise of not doing creative work
The range of type protection.
The utility model is described in detail with embodiment below.
Embodiment 1: referring to Fig. 1, and carbon fiber surface thermal spraying alloy coating from outward appearance to inner essence respectively includes alloy surface layer 1, mistake
Cross binder course 2 and roughened layer 3；
Alloy surface layer 1 is by Co-based alloy powder through spraying, and with a thickness of 0.1mm, Co-based alloy powder is herein
NiCrBSi alloy, content % are (Cr:15-17, B:2.5-3.5, Si:3.5-5.0, C:0.4-0.8, Fe:14-17, Ni: surplus)
It is a kind of alloy coat of corrosion-and high-temp-resistant high rigidity, wear-resisting property and mechanical performance are very outstanding, and thermal spraying operability is closed
It is suitable reliable；
Transitional bonding layer 2 by aluminium powder through spraying, with a thickness of 0.15mm；
Roughened layer 3 is formed by the white fused alumina sand of 60 mesh through sandblasting, and the surface roughness of roughened layer 3 is Ra=3 μm；
The hardness of the alloy coat is HRC60 degree, and the bond strength of alloy surface layer 1 and transitional bonding layer 2 is 20MPa.
Embodiment 2: refer to Fig. 1, carbon fiber surface thermal spraying alloy coating, difference from example 1 is that: alloy
Surface layer 1 with a thickness of 0.15mm, transitional bonding layer 2 with a thickness of 0.1mm, the surface roughness of roughened layer 3 is Ra=5 μm, the conjunction
The hardness of gold plating is HRC55 degree, and the bond strength of alloy surface layer 1 and transitional bonding layer 2 is 19MPa.
Embodiment 3: refer to Fig. 1, carbon fiber surface thermal spraying alloy coating, difference from example 1 is that: alloy
Surface layer 1 with a thickness of 0.12mm, transitional bonding layer 2 with a thickness of 0.13mm, the surface roughness of roughened layer 3 is Ra=3.5 μm,
The hardness of the alloy coat is HRC60 degree, and the bond strength of alloy surface layer 1 and transitional bonding layer 2 is 20MPa.
Embodiment 4: the preparation method of carbon fiber surface thermal spraying alloy coating described in embodiment 1 includes the following steps:
1. substrate pretreated: using acetone to clean carbon fiber roller matrix under ultrasound condition to remove grease stain, ultrasound is clear
Washing the time is 30 minutes；
2. roughing in surface: carrying out blasting treatment to the carbon fiber roller surface using the white fused alumina sand of 60 mesh, form roughening
Layer makes processing rear surface roughness reach Ra=3 μm；
3. plasma spraying: use power for the plasma spraying equipment of 80KW, using aluminium powder as transition bonding layer material,
Spraying is formed with a thickness of the transitional bonding layer with a thickness of 0.15mm, is then with Co-based alloy powder on the transitional bonding layer
The alloy surface layer that material spraying is formed with a thickness of 0.1mm, when preparing transitional bonding layer, spray power 20kW prepares alloy table
When layer, spray power 35kW controls carbon fiber roller substrate temperature by air-cooled and spraying rate, to mitigate process thermal stress pair
The influence of coating.
Embodiment 5: the preparation method of carbon fiber surface thermal spraying alloy coating as described in example 2 includes the following steps:
1. substrate pretreated: using acetone to clean carbon fiber roller matrix under ultrasound condition to remove grease stain, ultrasound is clear
Washing the time is 30 minutes；
2. roughing in surface: carrying out blasting treatment to the carbon fiber roller surface using the white fused alumina sand of 60 mesh, form roughening
Layer makes processing rear surface roughness reach Ra=5 μm；
3. plasma spraying: use power for the plasma spraying equipment of 80KW, using aluminium powder as transition bonding layer material,
Spraying is formed with a thickness of the transitional bonding layer with a thickness of 0.1mm, is then with Co-based alloy powder on the transitional bonding layer
The alloy surface layer that material spraying is formed with a thickness of 0.15mm, when preparing transitional bonding layer, spray power 20kW prepares alloy table
When layer, spray power 35kW controls carbon fiber roller substrate temperature by air-cooled and spraying rate, to mitigate process thermal stress pair
The influence of coating.
Embodiment 6: the preparation method of carbon fiber surface thermal spraying alloy coating described in embodiment 3 includes the following steps:
1. substrate pretreated: using acetone to clean carbon fiber roller matrix under ultrasound condition to remove grease stain, ultrasound is clear
Washing the time is 30 minutes；
2. roughing in surface: carrying out blasting treatment to the carbon fiber roller surface using the white fused alumina sand of 60 mesh, form roughening
Layer makes processing rear surface roughness reach Ra=3.5 μm；
3. plasma spraying: use power for the plasma spraying equipment of 80KW, using aluminium powder as transition bonding layer material,
Spraying is formed with a thickness of the transitional bonding layer with a thickness of 0.13mm, is then with Co-based alloy powder on the transitional bonding layer
The alloy surface layer that material spraying is formed with a thickness of 0.12mm, when preparing transitional bonding layer, spray power 20kW prepares alloy table
When layer, spray power 35kW controls carbon fiber roller substrate temperature by air-cooled and spraying rate, to mitigate process thermal stress pair
The influence of coating.
Claims (2)
1. carbon fiber surface thermal spraying alloy coating, it is characterised in that: from outward appearance to inner essence respectively include alloy surface layer (1), transition knot
Close layer (2) and roughened layer (3)；
The roughened layer (3) is formed by white fused alumina sand through sandblasting；
The transitional bonding layer (2) by aluminium powder through spraying, with a thickness of 0.1 ~ 0.15mm；
The alloy surface layer (1) by Co-based alloy powder through spraying, with a thickness of 0.1 ~ 0.15mm；
It further include the resin layer that the transitional bonding layer (2) is penetrated into part.
2. carbon fiber surface thermal spraying alloy coating according to claim 1, it is characterised in that: the mesh of the white fused alumina sand
Number is 60 mesh, and the surface roughness of the roughened layer (3) is Ra=3 ~ 5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465388.2U CN208883969U (en) | 2018-09-07 | 2018-09-07 | Carbon fiber surface thermal spraying alloy coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821465388.2U CN208883969U (en) | 2018-09-07 | 2018-09-07 | Carbon fiber surface thermal spraying alloy coating |
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| Publication Number | Publication Date |
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| CN208883969U true CN208883969U (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821465388.2U Active CN208883969U (en) | 2018-09-07 | 2018-09-07 | Carbon fiber surface thermal spraying alloy coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN208883969U (en) |
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2018
- 2018-09-07 CN CN201821465388.2U patent/CN208883969U/en active Active
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