CN108977744A - A kind of method that plasma spraying tailings in vanadium extraction prepares photothermal conversion coating - Google Patents
A kind of method that plasma spraying tailings in vanadium extraction prepares photothermal conversion coating Download PDFInfo
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- CN108977744A CN108977744A CN201811060152.5A CN201811060152A CN108977744A CN 108977744 A CN108977744 A CN 108977744A CN 201811060152 A CN201811060152 A CN 201811060152A CN 108977744 A CN108977744 A CN 108977744A
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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
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
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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
- C23C4/08—Metallic material containing only metal elements
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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
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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- Coating By Spraying Or Casting (AREA)
Abstract
The present invention is a kind of method that plasma spraying tailings in vanadium extraction prepares photothermal conversion coating.Method includes the following steps: tailings in vanadium extraction block to be atomized granulating through atomizer, be configured to the tailings in vanadium extraction reunion powder for plasma spraying after successively broken, ball milling, sieving；Blasting treatment is carried out to the Stainless Steel metal matrix material surface of required coating, then the metal matrix material surface after blasting treatment sprays bond coating；Using the method for plasma spraying, tailings in vanadium extraction reunion powder is sprayed on the bond coating surface that upper step obtains, so that preparation forms photothermal conversion coating.Present invention process is simply mature, is easy to produce in enormous quantities；Prepared coating is fine and close, with substrate combinating strength height.
Description
Technical field
It is to use plasma spraying to metal material by raw material of tailings in vanadium extraction the present invention relates to field of solar energy utilization
Plating, the specifically preparation method of tailings in vanadium extraction photothermal conversion coating.
Background technique
For solar energy as natural extensive renewable energy, it is the basic source of all regular powers on the earth, full people
Energy consumed by class is only that it is radiated tellurian energy number a ten thousandth.China's solar energy resources vast in territory are rich
Richness, therefore further the utilization and exploitation of further investigation solar energy are social sustainable for energy supply, the promotion of alleviating China
Development has great significance.
Currently, increasing for studying for solar thermal utilization both at home and abroad.Current solar thermal collector photothermal conversion
The production of material mainly use sintering technology to prepare potsherd, and sintering technology has many complex process, service life low and
Problem at high cost.Solar energy optical-thermal conversion coating is prepared using a variety of preparation processes in addition, there are also many researchers, mainly
Mode have: vapour deposition process (predominantly physical vapour deposition (PVD) PVD), electrochemical deposition (predominantly be electroplated), coating cladding process
And sol-gal process.Above-mentioned preparation method device therefor is expensive, preparation process is complicated, and related material cost height,
Ingredient design is complicated.Therefore it needs to be improved in material selection and preparation method, reduces cost, find at low cost, raw
Produce efficient, simple process material and coating production.
Summary of the invention
It is an object of the present invention to for deficiency existing for current techniques, provide a kind of plasma spraying tailings in vanadium extraction to prepare light
The method of hot-cast socket coating.This method, which passes through, is added dispersing agent, binder, is carried out by atomization reunion, and is used for tailings in vanadium extraction etc.
The method of plasma spray is prepared into solar energy optical-thermal conversion coating.Present invention process is simply mature, and it is raw to be easy to high-volume
It produces；Prepared coating is fine and close, with substrate combinating strength height.
The technical scheme adopted by the invention is that:
A kind of method that plasma spraying tailings in vanadium extraction prepares photothermal conversion coating, comprising the following steps:
Step 1: being formulated for the tailings in vanadium extraction reunion powder of plasma spraying；
By tailings in vanadium extraction block after successively broken, ball milling, sieving, tailings in vanadium extraction powder is obtained；Add binder, dispersion
Agent and deionized water are atomized granulating through atomizer, are configured to the tailings in vanadium extraction reunion powder for plasma spraying；
Wherein, mass ratio is tailings in vanadium extraction powder: binder: dispersing agent: deionized water=100:1:2~4:130~
140；The particle size range of the tailings in vanadium extraction powder is 5~15 microns；Be atomized granulating after reunion powder particle size range be 45~
55 microns；
Second step, metal matrix material pretreatment:
Blasting treatment is carried out to the metal matrix material surface of required coating, then the metallic matrix material after blasting treatment
Expect that surface sprays bond coating, bond coating is with a thickness of 90~100 microns；
Third step, the preparation of tailings in vanadium extraction photothermal conversion coating
Using the method for plasma spraying, the tailings in vanadium extraction reunion powder made in the first step is sprayed on what upper step obtained
Bond coating surface, so that preparation forms photothermal conversion coating, coating layer thickness is 180~200 microns；
Wherein, powder feeding gas N2, flow is 0.4~0.5L/min, and ionized gas flow is 35~45L/min, ionizes function
Rate is set as 30Kw~35Kw, and ionized gas uses H2Or N2。
The dispersing agent is sodium tripolyphosphate.
The binder is methylcellulose.
The bond coating material is: NiAl.
The composition of the tailings in vanadium extraction includes iron oxide, silica, manganese oxide, magnesia and aluminium oxide.
The metal material matrix is stainless steel.
The preparation method of above-mentioned tailings in vanadium extraction photothermal conversion coating, related raw material is obtained from steel mill, described
Sand blasting process, the technique for spraying bond coating and hot-spraying technique are technique known to this field is existing.
Substantive distinguishing features of the invention are as follows:
Using trade waste tailings in vanadium extraction as raw material, photothermal conversion coating is prepared by plasma spraying, on the one hand with not
Tailings in vanadium extraction dust cloud is agglomerated into spherical or subsphaeroidal reunion powder with proportion scale, on the other hand with different spraying parameters
Thermal spraying is carried out to reunion powder material and forms photothermal conversion coating.
Beneficial effects of the present invention are as follows:
The method of the present invention utilizes tailings in vanadium extraction reunion powder, forms one layer of light by the surface that plasma spray is coated in metal material
The coating of hot-cast socket coating.Its benefit is as follows:
(1) tailings in vanadium extraction mostly uses sintering process to be prepared into solar absorber plate in current techniques, and the present invention uses plasma
Tailings in vanadium extraction is prepared into solar energy optical-thermal conversion coating by spraying technology, and plasma spray coating process is simply mature, is easy to high-volume
Production.Plasma spraying method can carry out the repairing of damaged coating, if coating has peeling damaged, can carry out on its matrix secondary
Spraying to repair damaged coating, this be business be sintered made solar panels cannot, while cost of manufacture is lower than used in business
The solar panels of sintering process preparation.
(2) coating prepared by is fine and close, with substrate combinating strength height.There is certain porosity on surface, increases to sunlight
Capture, improve solar thermal utilization efficiency, spectral absorption (92.16%), which is higher than business and is sintered the spectrum of made solar panels, inhales
Yield, while infrared emittance (8.05%) is sintered the infrared emittance of made solar panels lower than business.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the SEM figure that embodiment 2 is the tailings in vanadium extraction powder filtered out after ball milling.
Fig. 2 is the SEM figure of tailings in vanadium extraction reunion powder obtained by embodiment 2.
Fig. 3 is the SEM figure of photothermal conversion coating surface obtained by embodiment 2.
Fig. 4 is the SEM figure of photothermal conversion coating cross sections obtained by embodiment 2.
Fig. 5 is the solar spectrum absorptivity figure of photothermal conversion coating obtained by embodiment 2.
Fig. 6 is the solar spectrum emissivity figure of photothermal conversion coating obtained by embodiment 2.
Specific embodiment
Tailings in vanadium extraction of the present invention originates from Shougang Group, and main group becomes iron oxide, silica, manganese oxide, oxidation
The mixture of magnesium and aluminium oxide, institute's accounting column are respectively 27.7%, 30%, 12.9%, 3.6% and 7.9%.
Embodiment 1
Step 1: being formulated for the tailings in vanadium extraction reunion powder of plasma spraying；
By tailings in vanadium extraction block after successively broken, ball milling, sieving, tailings in vanadium extraction powder is obtained；Binder is successively added again
(methylcellulose, following embodiment are same), dispersing agent (sodium tripolyphosphate, following embodiment are same) and deionized water, through atomizer
It is atomized granulating, is configured to the tailings in vanadium extraction reunion powder for plasma spraying；Wherein, mass ratio is tailings in vanadium extraction powder: bonding
Agent: dispersing agent: deionized water=100:1:2:135；The particle size range of the tailings in vanadium extraction powder is 5~15 microns；Atomization
Reunion powder particle size range after granulating is 45~55 microns；
Second step, metal matrix material pretreatment:
Blasting treatment is carried out to the stainless steel metal substrate material surface of required coating, then the metal after blasting treatment
Substrate material surface sprays bond coating (NiAl, following embodiment are same), and bond coating is with a thickness of 90~100 microns；
Third step, the preparation of tailings in vanadium extraction photothermal conversion coating
Using the method for plasma spraying, technological parameter power setting is 30Kw, and ionized gas uses H2.It will be in the first step
The tailings in vanadium extraction reunion powder made is sprayed in second step by pretreated metal matrix material surface, to prepare to be formed
Photothermal conversion coating, coating layer thickness are 180~200 microns.Spraying equipment model GP-80, powder feeding gas N2Flow be 0.4~
0.5L/min, ionized gas H2Flow is 35~45L/min, and the performance and embodiment 2 of obtained coating are close.
Embodiment 2
Step 1: being formulated for the tailings in vanadium extraction reunion powder of plasma spraying；
By tailings in vanadium extraction block after successively broken, ball milling, sieving, tailings in vanadium extraction powder is obtained；Again successively be added binder,
Dispersing agent and deionized water are atomized granulating through atomizer, are configured to the tailings in vanadium extraction reunion powder for plasma spraying；Wherein,
Mass ratio is tailings in vanadium extraction powder: binder: dispersing agent: deionized water=100:1:3:135；The tailings in vanadium extraction powder
Particle size range is 5~15 microns；Reunion powder particle size range after being atomized granulating is 45~55 microns；
Second step, metal matrix material pretreatment:
Blasting treatment is carried out to the stainless steel metal substrate material surface of required coating, then the metal after blasting treatment
Substrate material surface sprays bond coating, and bond coating is with a thickness of 90~100 microns；
Third step, the preparation of tailings in vanadium extraction photothermal conversion coating
Using the method for plasma spraying, technological parameter power setting is 30Kw, and ionized gas uses H2.It will be in the first step
The tailings in vanadium extraction reunion powder made is sprayed in second step by pretreated metal matrix material surface, to prepare to be formed
Photothermal conversion coating, coating layer thickness are 180~200 microns.Spraying equipment model GP-80, powder feeding gas N2Flow be 0.4~
0.5L/min, ionized gas H2Flow is 35~45L/min；
Fig. 1 is the powder SEM figure that tailings in vanadium extraction needed for the present embodiment is filtered out through broken ball milling.It can be seen that powder
Grain is in irregular shape, not of uniform size, and with certain viscosity, poor fluidity is not suitable for spraying.
Fig. 2 is the SEM figure of tailings in vanadium extraction reunion powder prepared by the present embodiment.It can clearly be seen that its shape be it is spherical or
Subsphaeroidal, particle consistency is very high, and mobility is excellent, is a kind of ideal spraying powder.
Fig. 3 is the SEM figure of photothermal conversion coating surface prepared by the present embodiment.It can be seen that coating surface is uniformly distributed one
Fixed gap, large specific surface area are very beneficial for capturing sunlight, improve photothermal conversion efficiency.
Fig. 4 is the SEM figure of photothermal conversion coating cross sections prepared by the present embodiment.Its coating and matrix are well combined, and are applied
Layer is internal to be also distributed some gaps, is conducive to sunlight and is absorbed inside it, reduce the reflection of light, improves spectral absorption.
Fig. 5 is monochromatic reflectance figure of the photothermal conversion coating in 0.3~2.5 micron of solar spectrum prepared by the present embodiment
Spectrum, it is 92.16% that absorptivity, which is calculated, through formula, has very high photo-thermal absorbent properties.
Fig. 6 is reflectivity map of the photothermal conversion coating in 2.5~16 microns of solar spectrum prepared by the present embodiment, warp
It is 8.05% that infrared emittance, which is calculated, in formula, and emissivity is lower, and energy loss is less.
Embodiment 3
Step 1: being formulated for the tailings in vanadium extraction reunion powder of plasma spraying；
By tailings in vanadium extraction block after successively broken, ball milling, sieving, tailings in vanadium extraction powder is obtained；Again successively be added binder,
Dispersing agent and deionized water are atomized granulating through atomizer, are configured to the tailings in vanadium extraction reunion powder for plasma spraying；Wherein,
Mass ratio is tailings in vanadium extraction powder: binder: dispersing agent: deionized water=100:1:4:135；The tailings in vanadium extraction powder
Particle size range is 5~15 microns；Reunion powder particle size range after being atomized granulating is 45~55 microns；
Second step, metal matrix material pretreatment:
Blasting treatment is carried out to the Stainless Steel metal matrix material surface of required coating, then the metal after blasting treatment
Substrate material surface sprays bond coating, and bond coating is with a thickness of 90~100 microns；
Third step, the preparation of tailings in vanadium extraction photothermal conversion coating
Using the method for plasma spraying, technological parameter power setting is 30Kw, and ionized gas uses H2.It will be in the first step
The tailings in vanadium extraction reunion powder made is sprayed in second step by pretreated metal matrix material surface, to prepare to be formed
Photothermal conversion coating, coating layer thickness are 180~200 microns.Spraying equipment model GP-80, powder feeding gas N2Flow be 0.4~
0.5L/min, ionized gas H2Flow is 35~45L/min；
Obtained coated optical effect is close with embodiment 2, and solar spectrum absorptivity is slightly below embodiment 2, is
91.02%；Infrared emittance is slightly above embodiment 2, is 8.57%.
Embodiment 4
Step 1: being formulated for the tailings in vanadium extraction reunion powder of plasma spraying；
By tailings in vanadium extraction block after successively broken, ball milling, sieving, tailings in vanadium extraction powder is obtained；Again successively be added binder,
Dispersing agent and deionized water are atomized granulating through atomizer, are configured to the tailings in vanadium extraction reunion powder for plasma spraying；Wherein,
Mass ratio is tailings in vanadium extraction powder: binder: dispersing agent: deionized water=100:1:2:135；The tailings in vanadium extraction powder
Particle size range is 5~15 microns；Reunion powder particle size range after being atomized granulating is 45~55 microns；
Second step, metal matrix material pretreatment:
Blasting treatment is carried out to the Stainless Steel metal matrix material surface of required coating, then the metal after blasting treatment
Substrate material surface sprays bond coating, and bond coating is with a thickness of 90~100 microns；
Third step, the preparation of tailings in vanadium extraction photothermal conversion coating
Using the method for plasma spraying, technological parameter power setting is 30Kw, and ionized gas uses N2.It will be in the first step
The tailings in vanadium extraction reunion powder made is sprayed in second step by pretreated metal matrix material surface, to prepare to be formed
Photothermal conversion coating, coating layer thickness are 180~200 microns.Spraying equipment model GP-80, powder feeding gas N2Flow be 0.4~
0.5L/min, ionized gas H2Flow is 35~45L/min, and the performance and embodiment 2 of obtained coating are close.
Embodiment 5
Step 1: being formulated for the tailings in vanadium extraction reunion powder of plasma spraying；
By tailings in vanadium extraction block after successively broken, ball milling, sieving, tailings in vanadium extraction powder is obtained；Again successively be added binder,
Dispersing agent and deionized water are atomized granulating through atomizer, are configured to the tailings in vanadium extraction reunion powder for plasma spraying；Wherein,
Mass ratio is tailings in vanadium extraction powder: binder: dispersing agent: deionized water=100:1:3:135；The tailings in vanadium extraction powder
Particle size range is 5~15 microns；Reunion powder particle size range after being atomized granulating is 45~55 microns；
Second step, metal matrix material pretreatment:
Blasting treatment is carried out to the Stainless Steel metal matrix material surface of required coating, then the metal after blasting treatment
Substrate material surface sprays bond coating, and bond coating is with a thickness of 90~100 microns；
Third step, the preparation of tailings in vanadium extraction photothermal conversion coating
Using the method for plasma spraying, technological parameter power setting is 35Kw, and ionized gas uses N2.It will be in the first step
The tailings in vanadium extraction reunion powder made is sprayed in second step by pretreated metal matrix material surface, to prepare to be formed
Photothermal conversion coating, coating layer thickness are 180~200 microns.Spraying equipment model GP-80, powder feeding gas N2Flow be 0.4~
0.5L/min, ionized gas H2Flow is 35~45L/min, and the performance and embodiment 2 of obtained coating are close.
Embodiment 6
Step 1: being formulated for the tailings in vanadium extraction reunion powder of plasma spraying；
By tailings in vanadium extraction block after successively broken, ball milling, sieving, tailings in vanadium extraction powder is obtained；Again successively be added binder,
Dispersing agent and deionized water are atomized granulating through atomizer, are configured to the tailings in vanadium extraction reunion powder for plasma spraying；Wherein,
Mass ratio is tailings in vanadium extraction powder: binder: dispersing agent: deionized water=100:1:4:135；The tailings in vanadium extraction powder
Particle size range is 5~15 microns；Reunion powder particle size range after being atomized granulating is 45~55 microns；Second step, metallic matrix material
Material pretreatment:
Blasting treatment is carried out to the Stainless Steel metal matrix material surface of required coating, then the metal after blasting treatment
Substrate material surface sprays bond coating, and bond coating is with a thickness of 90~100 microns；
Third step, the preparation of tailings in vanadium extraction photothermal conversion coating
Using the method for plasma spraying, technological parameter power setting is 35Kw, and ionized gas uses H2.It will be in the first step
The tailings in vanadium extraction reunion powder made is sprayed in second step by pretreated metal matrix material surface, to prepare to be formed
Photothermal conversion coating, coating layer thickness are 180~200 microns.Spraying equipment model GP-80, powder feeding gas N2Flow be 0.4~
0.5L/min, ionized gas H2Flow is 35~45L/min, and the performance and embodiment 2 of obtained coating are close.
Embodiment 7
In addition to spraying process power is 35Kw, with embodiment 2, performance and the embodiment 2 of obtained coating connect other techniques
Closely.
Embodiment 8
Except spraying ionized gas is N2Outside, for other techniques with embodiment 2, the performance and embodiment 2 of obtained coating are close.
Embodiment 9
Except weight ratio is powder: dispersing agent=100:2 dispersing agent, other techniques are with embodiment 5, the property of obtained coating
It can be close with embodiment 2.
Embodiment 10
Except weight ratio is powder: dispersing agent=100:4 dispersing agent, other techniques are with embodiment 4, the property of obtained coating
It can be close with embodiment 2.
Embodiment 11
Except weight ratio is powder: dispersing agent=100:4 dispersing agent, other techniques are with embodiment 5, the property of obtained coating
It can be close with embodiment 2.
Embodiment 12
Except weight ratio is powder: dispersing agent=100:2 dispersing agent, other techniques are with embodiment 6, the property of obtained coating
It can be close with embodiment 2.
Raw material described in above-described embodiment is obtained from steel mill, and the sand blasting process, atomizer are atomized reunion work
Skill and plasma spray coating process are technique known to this field is existing.
Unaccomplished matter of the present invention is well-known technique.
Claims (6)
1. a kind of method that plasma spraying tailings in vanadium extraction prepares photothermal conversion coating, it is characterized in that this method includes following step
It is rapid:
Step 1: being formulated for the tailings in vanadium extraction reunion powder of plasma spraying；
By tailings in vanadium extraction block after successively broken, ball milling, sieving, tailings in vanadium extraction powder is obtained；Add binder, dispersing agent and
Deionized water is atomized granulating through atomizer, is configured to the tailings in vanadium extraction reunion powder for plasma spraying；
Wherein, mass ratio is tailings in vanadium extraction powder: binder: dispersing agent: deionized water=100: 1: 2 ~ 4: 130 ~
140；The particle size range of the tailings in vanadium extraction powder is 5~15 microns；Be atomized granulating after reunion powder particle size range be 45~
55 microns；
Second step, metal matrix material pretreatment:
Blasting treatment is carried out to the metal matrix material surface of required coating, then the metal matrix material table after blasting treatment
Face sprays bond coating, and bond coating is with a thickness of 90 ~ 100 microns；
Third step, the preparation of tailings in vanadium extraction photothermal conversion coating
Using the method for plasma spraying, the tailings in vanadium extraction reunion powder made in the first step is sprayed on the bonding that upper step obtains
Bottom surface, so that preparation forms photothermal conversion coating, coating layer thickness is 180 ~ 200 microns；
Wherein, powder feeding gas N2, flow is 0.4 ~ 0.5L/min, and ionized gas flow is 35 ~ 45L/min, ionizes power setting
For 30Kw ~ 35Kw, ionized gas uses H2Or N2。
2. the method that plasma spraying tailings in vanadium extraction as described in claim 1 prepares photothermal conversion coating, it is characterized in that described
Dispersing agent is sodium tripolyphosphate.
3. the method that plasma spraying tailings in vanadium extraction as described in claim 1 prepares photothermal conversion coating, it is characterized in that described
Binder is methylcellulose.
4. the method that plasma spraying tailings in vanadium extraction as described in claim 1 prepares photothermal conversion coating, it is characterized in that described
Bond coating material is: NiAl.
5. the method that plasma spraying tailings in vanadium extraction as described in claim 1 prepares photothermal conversion coating, it is characterized in that described
The composition of tailings in vanadium extraction include iron oxide, silica, manganese oxide, magnesia and aluminium oxide.
6. the method that plasma spraying tailings in vanadium extraction as described in claim 1 prepares photothermal conversion coating, it is characterized in that described
Metal material matrix be stainless steel.
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| CN109877022A (en) * | 2019-03-06 | 2019-06-14 | 山东省科学院新材料研究所 | The method that black porcelain composition metal alloy prepares light absorbing material |
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