CN110230021A - Hot spraying coating sealing reagent and preparation method thereof - Google Patents
Hot spraying coating sealing reagent and preparation method thereof Download PDFInfo
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- CN110230021A CN110230021A CN201910620361.9A CN201910620361A CN110230021A CN 110230021 A CN110230021 A CN 110230021A CN 201910620361 A CN201910620361 A CN 201910620361A CN 110230021 A CN110230021 A CN 110230021A
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- spraying coating
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- hot spraying
- boron nitride
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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
- C23C4/18—After-treatment
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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a kind of hot spraying coating sealing reagents, which is characterized in that according to mass percent includes following components: graphene 0.1%~1% and the mixed solution 99%~99.9% containing boron nitride and aluminium metaphosphate.Can have higher hardness, better corrosion resistance, wearability using the hot-spraying coating that the hole sealing agent in the present invention is handled, to extend the service life of hot-spraying coating；Also, the preparation method of hot spraying coating sealing reagent is easy to operate, reduces maintenance cost, has a good application prospect.
Description
Technical field
The present invention relates to a kind of hot spraying coating sealing reagents and preparation method thereof.
Background technique
Thermal spraying is sprayed on material to be heated to melting or semi-molten state using heat source, and sink with certain speed injection
Product is to the method for forming coating by pretreated matrix surface, and hot-spraying coating is as made of the interlaced stacking of molecule
Lamellar tissue's structure needs to carry out sealing pores to the coating so that hot-spraying coating be made to be formed with pore structure.Such as plating
The sealing pores quality of zinc production line, sinking roller has quite crucial influence to the quality of galvanized sheet, therefore is related to hole sealing agent
Selection and use problem.Currently, it is fine to the sealing of hole corrosion resisting property of the common hole sealing agent of sinking roller in galvanization production line, but
Wearability is poor, causes the working life of sinking roller generally all shorter.The frequent replacement or maintenance of sinking roller reduce operating rate,
Labor intensity is increased, brings inconvenience to production and operation, while also considerably increasing the consumption of zinc in galvanization production line.
Summary of the invention
The present invention in order to overcome the shortcomings in the prior art, provides a kind of hot spraying coating sealing reagent.
In order to achieve the above object, the invention is realized by the following technical scheme:
Hot spraying coating sealing reagent, which is characterized in that according to mass percent include following components: graphene 0.1%~
1% and the mixed solution 99%~99.9% containing boron nitride and aluminium metaphosphate.
Preferably, boron nitride dispersion and aluminium metaphosphate solution mix the mixed solution, wherein the nitridation
The volume ratio of boron dispersion liquid and the aluminium metaphosphate solution is (5~8): 1.
It is another object of the invention to provide a kind of preparation methods of hot spraying coating sealing reagent.
In order to achieve the above object, the invention is realized by the following technical scheme:
The preparation method of hot spraying coating sealing reagent, which comprises the steps of:
By boron nitride dispersion and aluminium metaphosphate solution according to (5~8): 1 volume ratio mix containing boron nitride and
The mixed solution of aluminium metaphosphate；
By mass percent be 0.1%~1% graphene dispersion in mass percent be 99%~99.9% it is described mixed
It closes in solution and carries out uniform mixed processing.
Preferably, the mixed processing is stirring and/or 30~60min of ultrasound.
It is another object of the invention to provide a kind of sealing pores methods of hot-spraying coating.
In order to achieve the above object, the invention is realized by the following technical scheme:
A kind of sealing pores method of hot-spraying coating, which comprises the steps of:
Hot-spraying coating surface, which is coated in, using hole sealing agent forms sealing of hole layer；
It dries 8 at room temperature~makes sealing of hole layer hardening film forming for 24 hours；
7~11h is carried out to the sealing of hole layer to be heating and curing processing.
Preferably, the hole sealing agent includes following components according to mass percent: graphene 0.1%~1% and being contained
The mixed solution 99%~99.9% of boron nitride and aluminium metaphosphate.
Preferably, boron nitride dispersion and aluminium metaphosphate solution mix the mixed solution, wherein the nitridation
The volume ratio of boron dispersion liquid and the aluminium metaphosphate solution is (5~8): 1.
Preferably, the method for coating the hole sealing agent includes dip-coating, brushing or spraying.
Preferably, the operation of the processing that is heating and curing is 100 DEG C of 3~5h of heat preservation, and 150 DEG C of heat preservation 1h, 200 DEG C keep the temperature
1h, 250 DEG C of heat preservations 0.5h, 300~500 DEG C of 1~3h of heat preservation.
In hot spraying coating sealing reagent provided by the invention, the coefficient of friction of hexagonal boron nitride is very low, and coefficient of friction
Do not increase with the raising of temperature, the Applicable temperature than molybdenum disulfide, graphite is wider；Aluminium metaphosphate has good high temperature bonding
Performance, at high temperature also can be with good performance；Also, grapheme material has very high intensity, hardness, good toughness
And chemical stability is very good, can be used as reinforced phase and is applied in protective coating, while graphene can be evenly dispersed
In the solution that boron nitride dispersion and aluminium metaphosphate solution mix.In the present invention, the system of hot spraying coating sealing reagent
Preparation Method and application method it is easy to operate, graphene uniform can be made to be scattered in solution, finally obtain high temperature resistant and wear-resisting
The sealing pores effect of damage.Compared to traditional hole sealing agent, the hot-spraying coating handled using the hole sealing agent can have higher
Hardness, better corrosion resistance, wearability to extend the service life of hot-spraying coating reduce maintenance cost, have
There is good application prospect.
Detailed description of the invention
Fig. 1 is the photo of graphene dispersion in the mixed solution containing boron nitride and aluminium metaphosphate of embodiment 1.
Fig. 2 is the photo for the sample that the sealing pores method of embodiment 9 obtains, wherein (a) is the examination of test wear weight
Sample is (b) sample of test hardness, is (c) sample of test bond strength.
Specific embodiment
The present invention is described in detail below with reference to embodiment:
The each group distribution ratio and mixed processing parameter of hot spraying coating sealing reagent in embodiment 1-7 are as shown in Table 1.
Table one
| Embodiment | Graphene | Mixed solution containing boron nitride and aluminium metaphosphate | The volume ratio of boron nitride dispersion and aluminium metaphosphate solution |
| 1 | 0.1% | 99.9% | 5:1 |
| 2 | 0.3% | 99.7% | 6:1 |
| 3 | 0.5% | 99.5% | 6.5:1 |
| 4 | 0.7% | 99.3% | 6:1 |
| 5 | 0.9% | 99.1% | 7:1 |
| 6 | 1% | 99% | 8:1 |
| 7 | 0% | 100% | 6:1 |
In embodiment 1-6, carbon mass fraction >=98% of graphene, partial size D5010 μm of <.In embodiment 1-7, boron nitride
The purity > 99% of dispersion liquid, partial size≤80 μm, the purity > 99% of aluminium metaphosphate solution, partial size≤80 μm；Embodiment 7 is not
The control experiment of graphene is added.
Mixed processing parameter when preparing hot spraying coating sealing reagent in embodiment 1-7 is as shown in Table 2.
Table two
| Embodiment | Hybrid mode | The mixed processing time (min) | Ultrasonic power (W) | Supersonic frequency (kHZ) |
| 1 | Stirring and ultrasound | 30 | 300 | 40 |
| 2 | Stirring and ultrasound | 45 | 300 | 40 |
| 3 | Ultrasound | 45 | 350 | 45 |
| 4 | Stirring and ultrasound | 50 | 350 | 45 |
| 5 | Stirring and ultrasound | 55 | 350 | 45 |
| 6 | Stirring and ultrasound | 60 | 300 | 40 |
| 7 | Stirring and ultrasound | 60 | 300 | 40 |
Fig. 1 is dispersion of the graphene in mixed solution in the hot spraying coating sealing reagent prepared according to embodiment 1,
Solution colour is uniform as can be seen from Figure 1, and there is no reuniting.
Embodiment 8
It uses the hot spraying coating sealing reagent of embodiment 1: hot spraying coating sealing reagent is brushed on sample, brush one
Time, drying at room temperature 12h；Sample after drying at room temperature is put into chamber type electric resistance furnace and is heating and curing, heating condition is 100 DEG C of heat preservations
3h, 150 DEG C of heat preservations 1h, 200 DEG C of heat preservations 1h, 250 DEG C of heat preservations 0.5h, 300 DEG C of heat preservation 3h；After the completion of being heating and curing, power supply is closed
Stop heating, is taken out after sample cools to room temperature with the furnace.
Embodiment 9
It uses the hot spraying coating sealing reagent of embodiment 2: hot spraying coating sealing reagent is brushed on sample, brush one
Time, drying at room temperature 12h；Sample after drying at room temperature is put into chamber type electric resistance furnace and is heating and curing, heating condition is 100 DEG C of heat preservations
5h, 150 DEG C of heat preservation 1h, 200 DEG C of heat preservation 1h, 250 DEG C of heat preservation 0.5h, 300 DEG C of heat preservation 0.5h, 400 DEG C of heat preservation 0.5h, 450 DEG C are protected
Warm 2h；After the completion of being heating and curing, closes power supply and stop heating, taken out after sample cools to room temperature with the furnace.
Embodiment 10
Use the hot spraying coating sealing reagent of embodiment 3: by hot spraying coating sealing reagent dip-coating sample 6h, drying at room temperature
24h；Sample after drying at room temperature is put into chamber type electric resistance furnace and is heating and curing, heating condition is 100 DEG C of heat preservation 3.5h, 150 DEG C
Keep the temperature 1h, 200 DEG C of heat preservations 1h, 250 DEG C of heat preservations 0.5h, 300 DEG C of heat preservations 0.5h, 400 DEG C of heat preservation 0.5h；After the completion of being heating and curing,
It closes power supply and stops heating, taken out after sample cools to room temperature with the furnace.
Embodiment 11
Use the hot spraying coating sealing reagent of embodiment 4: by multiple hot spraying coating sealing reagent dip-coating sample 8h, drying at room temperature
10h；Sample after drying at room temperature is put into chamber type electric resistance furnace and is heating and curing, heating condition is 100 DEG C of heat preservation 4h, 150 DEG C of guarantors
Warm 1h, 200 DEG C of heat preservations 1h, 250 DEG C of heat preservations 0.5h, 300 DEG C of heat preservations 0.5h, 400 DEG C of heat preservations 0.5h, 500 DEG C of heat preservation 0.5h；Heating
After the completion of solidification, closes power supply and stop heating, taken out after sample cools to room temperature with the furnace.
Embodiment 12
It uses the hot spraying coating sealing reagent of embodiment 5: hot spraying coating sealing reagent is sprayed on sample, spraying one
Time, drying at room temperature 8h；Sample after drying at room temperature is put into chamber type electric resistance furnace and is heating and curing, heating condition is 100 DEG C of heat preservations
4h, 150 DEG C of heat preservations 1h, 200 DEG C of heat preservations 1h, 250 DEG C of heat preservations 0.5h, 300 DEG C of heat preservations 1h, 400 DEG C of heat preservations 1h, 450 DEG C of heat preservation 1h；
After the completion of being heating and curing, closes power supply and stop heating, taken out after sample cools to room temperature with the furnace.
Embodiment 13
It uses the hot spraying coating sealing reagent of embodiment 6: hot spraying coating sealing reagent is coated on sample, brush one time,
Drying at room temperature 12h；Sample after drying at room temperature is put into chamber type electric resistance furnace and is heating and curing, heating condition is 100 DEG C of heat preservation 5h,
150 DEG C of heat preservation 1h, 200 DEG C of heat preservation 1h, 250 DEG C of heat preservation 0.5h, 300 DEG C of heat preservation 0.5h, 400 DEG C of heat preservation 0.5h, 500 DEG C keep the temperature
1h；After the completion of being heating and curing, closes power supply and stop heating, taken out after sample cools to room temperature with the furnace.
Embodiment 14
It uses the hot spraying coating sealing reagent of embodiment 7: hot spraying coating sealing reagent is brushed on sample, brush one
Time, drying at room temperature 12h；Sample after drying at room temperature is put into chamber type electric resistance furnace and is heating and curing, heating condition is 100 DEG C of heat preservations
5h, 150 DEG C of heat preservation 1h, 200 DEG C of heat preservation 1h, 250 DEG C of heat preservation 0.5h, 300 DEG C of heat preservation 0.5h, 400 DEG C of heat preservation 0.5h, 450 DEG C are protected
Warm 2h；After the completion of being heating and curing, closes power supply and stop heating, taken out after sample cools to room temperature with the furnace.
Sample in embodiment 8-14 is made of 316L stainless steel；Wherein, the specimen size for testing bond strength is Φ
25x10mm is spraying WC coating after oil removing, blasting treatment, combines referring to standard GB/T/T 5210-2006 test strong
Degree；The specimen size for testing hardness is 100x70x5mm, by oil removing, blasting treatment, referring to standard GB/T/T 1730-
2007 (B methods) test hardness；The specimen size of test wear weight is 100x100x5mm, by oil removing, blasting treatment, reference
Standard GB/T/T 1768-2006 tests wear resistance.Wherein, it shows respectively in Fig. 2 (a), 2 (b) and 2 (c) according to implementation
The sample for the test wear weight that the hole sealing agent application method of example 9 obtains, the sample for testing hardness and the examination for testing bond strength
Sample；There it can be seen that process uses hot spraying coating sealing reagent of the invention, treated, and specimen surface is uniform, smooth, energy
Enough meet the further requirement of current rhythm of production quickening and cost control.
The sample obtained to the sealing pores method of embodiment 8-14 carries out hardness, wear resistance and bond strength respectively
Test, as a result as shown in Table 3.
Table three
| Embodiment | Hardness | Abrasion loss (g) | Bond strength (MPa) |
| 8 | 0.68 | 0.007 | 8.0 |
| 9 | 0.7 | 0.005 | 8.5 |
| 10 | 0.67 | 0.006 | 8.1 |
| 11 | 0.68 | 0.007 | 8.1 |
| 12 | 0.67 | 0.006 | 8.2 |
| 13 | 0.69 | 0.007 | 8.4 |
| 14 | 0.3 | 0.01 | 5.2 |
The hardness and bond strength that the hole sealing agent of graphene is not added it can be seen from table three are below thermal jet of the invention
Coating layer hole sealing agent, and abrasion loss is also larger, it was demonstrated that graphene as enhancing is added to boron nitride dispersion and inclined phosphorus
In sour aluminum solutions, the mechanical property of hot spraying coating sealing reagent of the invention is enhanced.Also, hot-spraying coating envelope of the invention
The mechanical property of hole agent is more stable, has more abrasion resistance properties.
Embodiment in the present invention is only used for that the present invention will be described, and is not construed as limiting the scope of claims limitation,
Other substantially equivalent substitutions that those skilled in that art are contemplated that, all fall in the scope of protection of the present invention.
Claims (4)
1. a kind of hot spraying coating sealing reagent, which is characterized in that according to mass percent include following components: graphene 0.1%
~1% and the mixed solution 99%~99.9% containing boron nitride and aluminium metaphosphate.
2. hot spraying coating sealing reagent according to claim 1, which is characterized in that boron nitride dispersion and aluminium metaphosphate are molten
Liquid mixes the mixed solution, wherein the volume ratio of the boron nitride dispersion and the aluminium metaphosphate solution be (5~
8):1。
3. a kind of preparation method of hot spraying coating sealing reagent, which comprises the steps of:
By boron nitride dispersion and aluminium metaphosphate solution according to (5~8): 1 volume ratio is mixed containing boron nitride and inclined phosphorus
The mixed solution of sour aluminium；
By mass percent be 0.1%~1% graphene dispersion in mass percent be 99%~99.9% the mixing it is molten
Uniform mixed processing is carried out in liquid.
4. the preparation method of hot spraying coating sealing reagent according to claim 3, which is characterized in that the mixed processing is
Stirring and/or 30~60min of ultrasound.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910620361.9A CN110230021A (en) | 2019-07-10 | 2019-07-10 | Hot spraying coating sealing reagent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910620361.9A CN110230021A (en) | 2019-07-10 | 2019-07-10 | Hot spraying coating sealing reagent and preparation method thereof |
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| CN110230021A true CN110230021A (en) | 2019-09-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277881A (en) * | 2020-02-19 | 2021-08-20 | 宝钢日铁汽车板有限公司 | Sealing agent and sealing method for zinc pot ceramic element |
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| CN103184406A (en) * | 2013-03-19 | 2013-07-03 | 河海大学 | Hybrid material hole sealing agent for improving corrosion resistance of plasma spraying coating in acid environment |
| US20170342555A1 (en) * | 2016-05-31 | 2017-11-30 | Goodrich Corporation | High temperature oxidation protection for composites |
| CN107880606A (en) * | 2017-12-07 | 2018-04-06 | 新冶高科技集团有限公司 | A kind of hole sealing agent, preparation method and the application method of sinking roller face coat |
| CN109423596A (en) * | 2017-07-12 | 2019-03-05 | 上海宝钢工业技术服务有限公司 | High-temperature resistant hole sealing agent and application method for hot-spraying coating |
| CN109554112A (en) * | 2018-11-27 | 2019-04-02 | 哈尔滨市长河特种涂料厂有限责任公司 | Resistance to 600 DEG C of high temperature hot spraying coating sealing reagents of one kind and preparation method thereof |
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2019
- 2019-07-10 CN CN201910620361.9A patent/CN110230021A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181812A (en) * | 2011-04-13 | 2011-09-14 | 上海君山表面技术工程股份有限公司 | Composite coating and spray coating method thereof, and composite structure roller |
| CN103184406A (en) * | 2013-03-19 | 2013-07-03 | 河海大学 | Hybrid material hole sealing agent for improving corrosion resistance of plasma spraying coating in acid environment |
| US20170342555A1 (en) * | 2016-05-31 | 2017-11-30 | Goodrich Corporation | High temperature oxidation protection for composites |
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| CN107880606A (en) * | 2017-12-07 | 2018-04-06 | 新冶高科技集团有限公司 | A kind of hole sealing agent, preparation method and the application method of sinking roller face coat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277881A (en) * | 2020-02-19 | 2021-08-20 | 宝钢日铁汽车板有限公司 | Sealing agent and sealing method for zinc pot ceramic element |
| CN113277881B (en) * | 2020-02-19 | 2023-05-16 | 宝钢日铁汽车板有限公司 | Sealing agent and sealing method for zinc pot ceramic element |
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