CN107217251A - Low pressure cold air power spraying and coating Aluminum Bronze based powders and preparation method - Google Patents
Low pressure cold air power spraying and coating Aluminum Bronze based powders and preparation method Download PDFInfo
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- CN107217251A CN107217251A CN201710418962.2A CN201710418962A CN107217251A CN 107217251 A CN107217251 A CN 107217251A CN 201710418962 A CN201710418962 A CN 201710418962A CN 107217251 A CN107217251 A CN 107217251A
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- aluminum bronze
- low pressure
- coating
- cold air
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- 239000000843 powder Substances 0.000 title claims abstract description 134
- 238000000576 coating method Methods 0.000 title claims abstract description 71
- 239000011248 coating agent Substances 0.000 title claims abstract description 70
- 238000005507 spraying Methods 0.000 title claims abstract description 60
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 title claims description 82
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 79
- 229910000906 Bronze Inorganic materials 0.000 title claims description 53
- 239000010974 bronze Substances 0.000 title claims description 50
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 title claims description 50
- 239000002245 particle Substances 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 30
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 24
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000000320 mechanical mixture Substances 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000005275 alloying Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims 1
- 239000010949 copper Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 15
- 239000008187 granular material Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 9
- 230000008021 deposition Effects 0.000 description 8
- 230000003628 erosive effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910000851 Alloy steel Inorganic materials 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 239000013528 metallic particle Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000010288 cold spraying Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
-
- B22F1/0003—
Abstract
Low pressure cold air power spraying and coating Cu-base powder and preparation method, by mass percentage, low pressure cold air power spraying and coating is with the component of Cu based powders：Cu powder：80 ~ 90%, Al2O3Powder：10%~20%；The percentage by weight sum of each component is 100%；Prepare Cu powder and Al that the Cu based powders are used2O3The particle size range of powder is 10 50 μm, and wherein Cu powder is electrolysis Cu powder, the Al for being shaped as aspherical2O3Powder is to be shaped as polygonal α phases Al2O3Powder；The step of method is：（1）Particle size range is chosen to be 10 50 μm, be shaped as the electrolytic copper powder of aspherical and be shaped as polygonal α phases Al2O3Powder；（2）Powder body material is dried；（3）By powder body material according to said components, powder is weighed, mechanical mixture is to uniform；It is that can obtain low pressure cold aerodynamic force spraying Cu-base powder by above-mentioned steps.
Description
Technical field
The present invention relates to coating preparation field, and in particular to spraying Aluminum Bronze based powders moral technology of preparing.
Background technology
Cold air power spraying and coating can be divided into high pressure cold dynamic spraying and low pressure cold air according to the pressure using compressed gas
Dynamic spraying.The compression pressure that high pressure cold dynamic spraying is used is more than 15 atmospheric pressure low pressure cold air power spraying and coatings
The compressed air used is below 10 atmospheric pressure.Gas pressure is big in high pressure cold dynamic spraying preparation process, powder deposition
Formed coating effect is good, ability strong, the coating of any thickness can be prepared.Because high pressure cold dynamic spraying is to the need of high pressure
Ask, cause high pressure cold dynamic spraying equipment is expensive, spraying frock investment is big, coating prepares cost high.By contrast, low pressure cold
Aerodynamic force spraying equipment is small, low cost, and it is low that coating prepares cost；Therefore low pressure cold air dynamic spraying technology has very big business
Competitiveness and development prospect.
Deposition and powder granule of the powder granule in matrix surface are there is during cold air power spraying and coating prepares coating
To two kinds of effects of erosion of matrix surface.When the sedimentary effect of powder granule is more than the erosion effect of powder granule, matrix table
Face can deposit one layer of coating；When the erosion effect of powder granule is more than the sedimentary effect of powder granule, matrix surface can be formed
Coarse erosion surface, coating is not had and is formed.When powder granule speed is more than a threshold speed, powder is in matrix
On can show sedimentary effect；When powder granule speed is less than this critical value, what powder granule was showed makes punching
Lose effect.The gas pressure that low pressure cold air power spraying and coating is used is small, the energy ratio high pressure cold that powder granule is obtained in the gas flow
Dynamic spraying it is small, powder particle hit matrix instantaneous velocity it is small；And speed of powder granule when hitting matrix small causes powder
Body is easier erosion effect occur in matrix surface, ultimately results in coating layer thickness and does not increase, or can not form effective coating.
The powder body material that low pressure cold air power spraying and coating is used at present in addition, the wherein hardness of metallic particles is not high, typically left in 100HV
It is right.Because the high metallic particles of hardness is during low pressure cold air power spraying and coating, deformation is difficult, is unfavorable for metal-powder
The deposition of particle.
The content of the invention
It is an object of the invention to provide a kind of low pressure cold air power spraying and coating Aluminum Bronze based powders and preparation method.
The present invention is low pressure cold air power spraying and coating Aluminum Bronze based powders and preparation method, and low pressure cold air power spraying and coating is used
Aluminum Bronze based powders, by mass percentage, its component is：Aluminum Bronze powder 75-90%, Al2O3Powder 10%-25%；Each component
Percentage by weight sum be 100%；Prepare Aluminum Bronze powder and Al that the Aluminum Bronze based powders are used2O3The particle size range of powder
It it is 10-50 μm, wherein Aluminum Bronze powder is Aluminum Bronze prealloy powder, the Al for being shaped as aspherical2O3Powder be shaped as it is many
The α phases Al of side shape2O3Powder；
The alloying component mass percent of above-mentioned Aluminum Bronze prealloy powder is：Cu elements 70-80%, Al element 12-16%,
Fe elements 2-4%, Mn element 0.5-2%, Ni element 0.2-0.5%, Co element 0.2-0.5%.
The preparation method of low pressure cold air power spraying and coating Aluminum Bronze based powders, its step is：
（1）Particle size range is chosen to be 10-50 μm, be shaped as the Aluminum Bronze prealloy powder of aspherical and be shaped as polygonal
α phases Al2O3Powder；
（2）Aluminum Bronze powder body material is heated to 400 °C, 2 hours are incubated, then furnace cooling is to room temperature；By α phases Al2O3
Powder body material heating, drying；
（3）By powder body material ratio as described above, powder is weighed, mechanical mixture obtains the cold air powered spray of low pressure to uniform
Aluminum Bronze based powders are used in painting.
The beneficial effects of the invention are as follows：Low pressure cold air power spraying and coating Aluminum Bronze based powders obtained by the present invention have very well
Low pressure cold air power spraying and coating performance；Using the low pressure cold air power spraying and coating Aluminum Bronze based powders obtained by the present invention,
Low pressure cold aerodynamic force spraying is carried out on the matrixes such as common iron, copper alloy and the higher steel alloy of hardness, coating layer thickness can surpass
Cross 10mm.Low pressure cold air power spraying and coating Aluminum Bronze based powders obtained by the present invention can be used for low pressure cold spraying and repair or make
Part is made, is that the reparation of part is brought convenience and can be cost-effective with manufacture.For example, pneumatic using the low pressure cold obtained by the present invention
Aluminum Bronze based powders are used in power spraying, can carry out low pressure cold air power spraying and coating reparation to section bar, the sheet material roll of steel, raising is rolled
The rub resistance and decay resistance of roller, increase its service life, reduce the maintenance cost of steel roll；Can also be to the cylinder of automobile
Body, sealing valve carry out the preparation of low pressure cold air power spraying and coating or reparation, improve motor cylinder block or the decay resistance of sealing valve, increase
Plus its service life, reduce preparation or the maintenance cost of cylinder body and sealing valve.
Brief description of the drawings
Fig. 1 is mesolow cold air power spraying and coating Aluminum Bronze based powders microscopic appearance figure of the embodiment of the present invention, and Fig. 2 is
Cr12The sectional view of low pressure cold air power spraying and coating Aluminum Bronze base coating on MoV alloy steel matrix.
Embodiment
The present invention is low pressure cold air power spraying and coating Aluminum Bronze based powders and preparation method, and low pressure cold air power spraying and coating is used
Aluminum Bronze based powders, by mass percentage, its component is：Aluminum Bronze powder 75-90%, Al2O3Powder 10%-25%；Each component
Percentage by weight sum be 100%；Prepare Aluminum Bronze powder and Al that the Aluminum Bronze based powders are used2O3The particle size range of powder
It it is 10-50 μm, wherein Aluminum Bronze powder is Aluminum Bronze prealloy powder, the Al for being shaped as aspherical2O3Powder be shaped as it is many
The α phases Al of side shape2O3Powder；
The alloying component mass percent of above-mentioned Aluminum Bronze prealloy powder is：Cu elements 70-80%, Al element 12-16%,
Fe elements 2-4%, Mn element 0.5-2%, Ni element 0.2-0.5%, Co element 0.2-0.5%.
The preparation method of low pressure cold air power spraying and coating Aluminum Bronze based powders, its step is：
（1）Particle size range is chosen to be 10-50 μm, be shaped as the Aluminum Bronze prealloy powder of aspherical and be shaped as polygonal
α phases Al2O3Powder；
（2）Aluminum Bronze powder body material is heated to 400 °C, 2 hours are incubated, then furnace cooling is to room temperature；By α phases Al2O3
Powder body material heating, drying；
（3）By powder body material ratio as described above, powder is weighed, mechanical mixture obtains the cold air powered spray of low pressure to uniform
Aluminum Bronze based powders are used in painting.
In order that objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
Describe in detail.It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
Embodiment:In this embodiment, the low pressure cold air power spraying and coating Aluminum Bronze based powders that the present invention is provided,
It is prepared from by the raw material of following mass percent：
Aluminum Bronze powder 75-90%, Al2O3Powder 10%-25%；The percentage by weight sum of each component is 100%；Prepare the high alumina
Aluminum Bronze powder and Al that bronze based powders are used2O3The particle size range of powder is 10-50 μm, and wherein Aluminum Bronze powder is shape
For Aluminum Bronze prealloy powder, the Al of aspherical2O3Powder is to be shaped as polygonal α phases Al2O3Powder.
The alloying component mass percent of above-mentioned Aluminum Bronze prealloy powder is：Cu elements 70-80%, Al element 12-
16%, Fe element 2-4%, Mn element 0.5-2%, Ni element 0.2-0.5%, Co element 0.2-0.5%.
Present example additionally provides the preparation method of above-mentioned low pressure cold air power spraying and coating Aluminum Bronze based powders, including
Following steps：
（1）Particle size range is chosen to be 10-50 μm, be shaped as the Aluminum Bronze prealloy powder of aspherical and be shaped as polygonal
α phases Al2O3Powder；
（2）Aluminum Bronze powder body material is heated to 400 °C, 2 hours are incubated, then furnace cooling is to room temperature；By α phases Al2O3
Powder body material heating, drying；
（3）By powder body material according to aforementioned proportion, powder is weighed, mechanical mixture is to uniform；
It is that can obtain low pressure cold aerodynamic force spraying Aluminum Bronze based powders by above-mentioned steps.
Fig. 1 show obtained low pressure cold air power spraying and coating Aluminum Bronze based powders microscopic appearance figure.
Aluminum Bronze powder is prepared using atomization in this specific implementation formula, is shaped as the prefabricated copper alloy of aspherical
Powder, the Aluminum Bronze powder particles of aspherical can be obtained in the air-flow of low pressure cold air power spraying and coating compared to spherical Aluminum Bronze powder particles
More tractive force are obtained, this can make the flying speed of aspherical Aluminum Bronze powder particles be more than flying for spherical Aluminum Bronze powder particles
Scanning frequency degree.Larger particle flight speed, can allow Aluminum Bronze powder particles to be more prone to be plastically deformed, be easier to be deposited on base
Body surface face.
Metallic particles hardness in the cold air powered spray powders of current low pressure is not high, and relatively low hardness is conducive to metal
The plastic deformation of particle, the deposition of powder body material is conducive to form coating.The Aluminum Bronze alloy powder that atomization is prepared
The hardness of material reaches more than 400HV, is directly used in low pressure cold air power spraying and coating, it is difficult to form coating on matrix.This is specific
Implement the annealing softening processing of 400 °C of Aluminum Bronze alloy powder material progress for preparing atomization in formula, solve
Metallic particles hardness is high, be unfavorable for the problem of coating is formed.Aluminum Bronze alloy powder material after annealing softening is forming painting
In the cold air powered spraying process of low pressure of layer, by violent plastic deformation, its hardness returns to more than 400HV again.
α phases Al in this specific implementation formula2O3Powder is polygonal particle.Polygonal α phases Al2O3Powder particle by
In its shape, in spraying process, powder particle deposition interface can be made to keep larger roughness, this can allow Aluminum Bronze
Powder granule produces good mechanical bond with deposition surface, improves the thickness of coating deposition.Meanwhile, polygonal α phases Al2O3
Powder particle is more than Aluminum Bronze powder particles due to its hardness, in the cold air powered spraying process of low pressure, and high alumina can be promoted blue or green
The plastic deformation of copper powder particle, reduces the hole in coating, improves the bond strength of coat inside.
The low pressure cold spraying Aluminum Bronze based powders provided using the present invention are in conventional roll material Cr12MoV alloys
The cold air powered spray-on coating of low pressure that thickness exceedes 10mm is prepared in steel matrix, coating cross sections are as shown in Figure 2.Fig. 2 left side is
Cr12MoV alloy steel matrix, the right is that the low pressure cold air power spraying and coating provided using the present invention is prepared into Aluminum Bronze based powders
The low pressure cold air power spraying and coating Aluminum Bronze base coating arrived.There is obvious interface between matrix and coating in fig. 2；Coating is caused
It is close, without obvious hole.Fig. 2 mesolows cold air power spraying and coating is deformed well with the electrolytic copper powder in Aluminum Bronze based powders,
Original Aluminum Bronze powder morphology is not seen completely in the coating；Low pressure cold air power spraying and coating is with Aluminum Bronze based powders
α phases Al2O3Powder particle is uniformly distributed in the coating, is well combined with coating.Because, the cold air powered spraying process of low pressure
In, polygonal α phases Al2O3The interface of powder particle energy continuous activation powder deposition, promotes low pressure cold air power spraying and coating high alumina
Bronze based powders are constantly deposited, and are formed coating, are promoted coating layer thickness to increase.Other polygonal α phases Al2O3Powder particle can be with
Promote Aluminum Bronze powder fully to deform, improve the consistency of coating, reduce the hole in coating.α phases Al in coating2O3Powder
Particle size and the α phases Al in powder body material2O3Powder particle size is compared, the α phases Al in coating2O3Powder particle size becomes
It is small；Because in spraying process, Aluminum Bronze powder granule hits the α phases Al for being deposited on coating surface2O3Powder particle,
Because Aluminum Bronze powder granule hardness is higher, α phases Al is caused2O3Powder particle is crushed, and ultimately forms α phases Al2O3Powder particle
The small Aluminum Bronze base coating of size.
In being embodied more than, the low pressure cold air power spraying and coating Aluminum Bronze based powders provided using the present invention are existed
Cr12MoV alloy steel matrix is prepared for the cold air powered spray-on coating of low pressure that thickness exceedes 10mm, it is intended to prove, the present invention is provided
Low pressure cold air power spraying and coating Aluminum Bronze based powders the cold air powered spray of low pressure can be prepared in metal engineering material matrix
Coating layer, and the thickness of coating can reach more than 10mm.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. low pressure cold air power spraying and coating Aluminum Bronze based powders, it is characterised in that by mass percentage, its component is：It is high
Aluminium bronze powder 75-90%, Al2O3Powder 10%-25%；The percentage by weight sum of each component is 100%；Prepare the Aluminum Bronze original washing powder
Aluminum Bronze powder and Al that end is used2O3The particle size range of powder is 10-50 μm, and wherein Aluminum Bronze powder is to be shaped as aspherical
Aluminum Bronze prealloy powder, Al2O3Powder is to be shaped as polygonal α phases Al2O3Powder；
The alloying component mass percent of above-mentioned Aluminum Bronze prealloy powder is：Cu elements 70-80%, Al element 12-16%,
Fe elements 2-4%, Mn element 0.5-2%, Ni element 0.2-0.5%, Co element 0.2-0.5%.
2. the low pressure cold air power spraying and coating preparation method of Aluminum Bronze based powders, it is characterised in that its step is：
（1）Particle size range is chosen to be 10-50 μm, be shaped as the Aluminum Bronze prealloy powder of aspherical and be shaped as polygonal
α phases Al2O3Powder；
（2）Aluminum Bronze powder body material is heated to 400 °C, 2 hours are incubated, then furnace cooling is to room temperature；By α phases Al2O3Powder
Body material heating, drying；
（3）By powder body material according to ratio described in claim 1, powder is weighed, mechanical mixture obtains low pressure cold pneumatic to uniform
Aluminum Bronze based powders are used in power spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418962.2A CN107217251B (en) | 2017-06-06 | 2017-06-06 | Low pressure cold air power spraying and coating Aluminum Bronze based powders and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418962.2A CN107217251B (en) | 2017-06-06 | 2017-06-06 | Low pressure cold air power spraying and coating Aluminum Bronze based powders and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107217251A true CN107217251A (en) | 2017-09-29 |
| CN107217251B CN107217251B (en) | 2019-06-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710418962.2A Active CN107217251B (en) | 2017-06-06 | 2017-06-06 | Low pressure cold air power spraying and coating Aluminum Bronze based powders and preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930146A (en) * | 2019-03-30 | 2019-06-25 | 兰州理工大学 | A method of submerged-arc welding contact tube is repaired based on low pressure cold spray technique |
| CN114231967A (en) * | 2021-12-27 | 2022-03-25 | 东莞市精研粉体科技有限公司 | Method for manufacturing aluminum bronze alloy-steel composite bimetal wear-resistant bearing material |
-
2017
- 2017-06-06 CN CN201710418962.2A patent/CN107217251B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930146A (en) * | 2019-03-30 | 2019-06-25 | 兰州理工大学 | A method of submerged-arc welding contact tube is repaired based on low pressure cold spray technique |
| CN114231967A (en) * | 2021-12-27 | 2022-03-25 | 东莞市精研粉体科技有限公司 | Method for manufacturing aluminum bronze alloy-steel composite bimetal wear-resistant bearing material |
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| Publication number | Publication date |
|---|---|
| CN107217251B (en) | 2019-06-28 |
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