CN116751473B - High-temperature-resistant far infrared coating and preparation method thereof - Google Patents
High-temperature-resistant far infrared coating and preparation method thereof Download PDFInfo
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- CN116751473B CN116751473B CN202310737599.6A CN202310737599A CN116751473B CN 116751473 B CN116751473 B CN 116751473B CN 202310737599 A CN202310737599 A CN 202310737599A CN 116751473 B CN116751473 B CN 116751473B
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- 238000000576 coating method Methods 0.000 title claims abstract description 109
- 239000011248 coating agent Substances 0.000 title claims abstract description 107
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 13
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 10
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 3
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 3
- 229940072033 potash Drugs 0.000 claims abstract description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 3
- 235000015320 potassium carbonate Nutrition 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 25
- 238000005303 weighing Methods 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 20
- 239000003973 paint Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 10
- 239000011812 mixed powder Substances 0.000 claims description 10
- 238000007750 plasma spraying Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000011863 silicon-based powder Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 5
- 239000012159 carrier gas Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 5
- 239000004480 active ingredient Substances 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000002329 infrared spectrum Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000554 physical therapy Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000012720 thermal barrier coating Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a high-temperature-resistant far infrared coating and a preparation method thereof, belonging to the field of far infrared coatings, wherein the high-temperature-resistant far infrared coating comprises the following raw materials in percentage by weight: 15-20wt.% of NiCrCoAlY alloy powder, 2-5wt.% of silica powder, 15-30wt.% of ZrO 215～20％、Y2O3, 1-2wt.% of stabilizer, 0.1-0.15% of silane coupling agent, 20-25% of binder and the balance of water, wherein Y in the NiCrCoAlY alloy powder and Y 2O3 is Mo, U, re and Cr, and the binder is one or more of potash water glass, sodium water glass and lithium water glass.
Description
Technical Field
The invention relates to the field of far infrared coating, in particular to high-temperature-resistant far infrared coating and a preparation method thereof.
Background
With the continuous improvement of the living standard of people, electric heating far infrared spectrum generating equipment with medical care effects such as far infrared electric blankets, far infrared sauna rooms and the like are more and more popular for people, the health-care electric heating far infrared spectrum generating equipment is applied with far infrared paint to play a role, the far infrared paint can emit far infrared light with the wavelength of 6-14 mu m and generate far infrared radiation after being electrified and heated, and the emitted far infrared spectrum with the wavelength of 6-14 mu m approximates to the solar spectrum, so that the far infrared paint is convenient for human body absorption and beneficial to human health, thereby achieving the effect of physiotherapy and health care, and particularly when the heated temperature reaches more than 150 ℃, the radiation intensity of the far infrared paint is obviously enhanced, and the physiotherapy effect is better.
Through searching, chinese patent No. CN106634063B discloses a high-temperature-resistant far infrared coating, a preparation method and application thereof, although the quality of the formed coating is stable, the formed coating is not easy to fall off from heating equipment after long-term heating, the temperature resistance can reach more than 800 ℃, but the service performance of the coating cannot be improved, and meanwhile, the peeling strength of the coating formed by the coating cannot be improved, so that the service life of the coating is shortened, the impact resistance of the coating cannot be improved, and the coating formed by the coating is easy to damage.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a high-temperature-resistant far infrared coating and a preparation method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The high-temperature-resistant far infrared coating consists of the following raw materials in percentage by weight: niCrCoAlY wt.% of alloy powder 15-20 wt.%, silicon powder 2-5 wt.%, zrO 215～20％、Y2O3 -30 wt.%, stabilizer 1-2 wt.%, silane coupling agent 0.1-0.15 wt.%, binder 20-25 wt.% and the balance of water.
Further, Y in NiCrCoAlY alloy powder and Y 2O3 is Mo, U, re and Cr, the binder is one or more of potash water glass, sodium water glass and lithium water glass, the silane coupling agent is one or more of vinyltriethoxysilane, vinyltrimethoxysilane and vinyltris (beta-methoxyethoxy) silane, the stabilizer contains trivalent and tetravalent cations, and the particle size of the NiCrCoAlY alloy powder and silicon powder is 1-5 mu m.
A preparation method of high-temperature-resistant far infrared paint comprises the following specific steps:
step one: weighing the raw materials: weighing raw materials with corresponding mass according to a weighing formula and a formula;
Step two: pretreatment: mixing ZrO 2 and Y 2O3, simultaneously performing ultrasonic dispersion, gradually heating a sintering furnace to 600-800 ℃, after ZrO 2 and Y 2O3 are uniformly dispersed, transferring to the sintering furnace, sintering at constant temperature for 30-35 min, taking out after sintering is completed, and naturally cooling to form a prefabricated material;
step three: preparing a coating A: mixing the prefabricated material in the second step with a stabilizer, putting the mixture into a ball mill, grinding for 8-10 hours, forming mixed powder after ball milling, mixing and stirring the mixed powder with a binder to form a mixed solution, sequentially adding a silane coupling agent and water, and continuously stirring for 30-50 minutes to obtain a coating A;
step four: preparing a coating B: mixing NiCrCoAlY alloy powder with silicon powder for standby, and obtaining a coating B;
Step five: post-treatment: and packaging the coating A and the coating B respectively, and combining to obtain the high-temperature-resistant far infrared coating.
Further, the weighing formula in the first step is:
CQ＝RMQ×(OQRQ×100％BP×100％)，
BP＝BC×(1-WC)；
Wherein CQ is the actual demand of one raw material in a preset batch, namely raw material weighing and proportioning information; RMQ the standard required amount of the active ingredient of the raw material required for producing standard amount of the product, namely standard weighing and proportioning information; OQ is the throughput of the preset lot and production plan information; RQ is the standard throughput of the product; BP is the content of active ingredients of the material batch, namely the ingredient information of the raw materials; BC is the content of the material batch; WC is the moisture content of a batch of material.
Further, the constant temperature sintering temperature in the second step is 1000-1200 ℃.
Further, the specific operation of the combined use in the fifth step is as follows:
s1, spraying a coating B on the surface of a carrier through a DH-2080 type plasma spraying device, and after uniform coating, spraying a coating A on the surface of the coating B;
s2, scanning the paint B and the paint A by using a high-energy laser beam of a TRULASER CELL 7040 disc laser so as to form a molten pool, and finally rapidly cooling to finish the combined use.
Further, parameters of the DH-2080 type plasma spraying device are as follows: 500-530A of current, 70-75V of voltage, 38-40L/M of main air flow, 8-10L/M of secondary air flow, 2.5-3L/M of carrier gas flow, 100mm of spraying distance, 35-40 kw of spray gun power and 30rad/M of rotating speed; the TRULASER CELL 7040 disc laser in step S2 has a rated output power of 5000W and a laser beam wavelength of 1030nm.
Compared with the prior art, the invention has the beneficial effects that:
1. The coating prepared by the invention has excellent heat resistance, and the surface of the coating formed by the prepared high-temperature-resistant far infrared coating is smoother, so that dust and dirt are not easy to accumulate on the surface of the coating, thereby being more beneficial to release of far infrared, improving the service performance of the coating, improving the peeling strength of the coating formed by the prepared high-temperature-resistant far infrared coating, further improving the adhesiveness of the coating, prolonging the service life of the coating, improving the impact resistance of the coating and ensuring that the coating formed by the coating is not easy to damage.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Fig. 1 is a schematic diagram of a preparation flow of a preparation method of a high-temperature-resistant far infrared coating provided by the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1:
Referring to fig. 1, the present invention provides a technical solution: a preparation method of high-temperature-resistant far infrared paint comprises the following specific steps:
step one: weighing the raw materials: weighing raw materials with corresponding mass according to a weighing formula and a formula;
Step two: pretreatment: mixing ZrO 2 and Y 2O3, simultaneously performing ultrasonic dispersion, simultaneously gradually heating a sintering furnace to 600 ℃, transferring into the sintering furnace to perform constant-temperature sintering for 30min after ZrO 2 and Y 2O3 are uniformly dispersed, taking out after the sintering is completed, and naturally cooling to form a prefabricated material, wherein the constant-temperature sintering temperature is 1000 ℃;
Step three: preparing a coating A: mixing the prefabricated material in the second step with a stabilizer, putting the mixture into a ball mill, grinding for 8 hours, forming mixed powder after ball milling, mixing and stirring the mixed powder with a binder to form a mixed solution, sequentially adding a silane coupling agent and water, and continuously stirring for 30 minutes to obtain a coating A;
step four: preparing a coating B: mixing NiCrCoAlY alloy powder with silicon powder for standby, and obtaining a coating B;
step five: post-treatment: the coating A and the coating B are respectively packaged and used in combination, thus obtaining the high-temperature-resistant far infrared coating, and the specific operation of the combination is as follows:
S1, spraying a coating B on the surface of a carrier through a DH-2080 type plasma spraying device, and after uniform coating, spraying a coating A on the surface of the coating B, wherein parameters of the DH-2080 type plasma spraying device are as follows: the current is 500A, the voltage is 70V, the main air flow is 38L/M, the secondary air flow is 8L/M, the carrier gas flow is 2.5L/M, the spraying distance is 100mm, the spray gun power is 35kw, and the rotating speed is 30rad/M;
S2, scanning the paint B and the paint A by using a high-energy laser beam of the TRULASER CELL 7040 disc laser so as to form a molten pool, and finally rapidly cooling to finish the combined use, wherein the rated output power of the TRULASER CELL 7040 disc laser is 5000W, and the wavelength of the laser beam is 1030nm.
Example 2:
Referring to fig. 1, the present invention provides a technical solution: a preparation method of high-temperature-resistant far infrared paint comprises the following specific steps:
step one: weighing the raw materials: weighing raw materials with corresponding mass according to a weighing formula and a formula;
Step two: pretreatment: mixing ZrO 2 and Y 2O3, simultaneously performing ultrasonic dispersion, simultaneously gradually heating a sintering furnace to 700 ℃, transferring into the sintering furnace to perform constant-temperature sintering for 33min after ZrO 2 and Y 2O3 are uniformly dispersed, taking out after the sintering is completed, and naturally cooling to form a prefabricated material, wherein the constant-temperature sintering temperature is 1100 ℃;
Step three: preparing a coating A: mixing the prefabricated material in the second step with a stabilizer, putting the mixture into a ball mill, grinding for 9 hours, forming mixed powder after ball milling, mixing and stirring the mixed powder with a binder to form a mixed solution, sequentially adding a silane coupling agent and water, and continuously stirring for 40 minutes to obtain a coating A;
step four: preparing a coating B: mixing NiCrCoAlY alloy powder with silicon powder for standby, and obtaining a coating B;
step five: post-treatment: the coating A and the coating B are respectively packaged and used in combination, thus obtaining the high-temperature-resistant far infrared coating, and the specific operation of the combination is as follows:
S1, spraying a coating B on the surface of a carrier through a DH-2080 type plasma spraying device, and after uniform coating, spraying a coating A on the surface of the coating B, wherein parameters of the DH-2080 type plasma spraying device are as follows: current 5230A, voltage 72V, primary air flow 39L/M, secondary air flow 9L/M, carrier gas flow 2.7L/M, spraying distance 100mm, spray gun power 38kw, rotation speed 30rad/M;
S2, scanning the paint B and the paint A by using a high-energy laser beam of the TRULASER CELL 7040 disc laser so as to form a molten pool, and finally rapidly cooling to finish the combined use, wherein the rated output power of the TRULASER CELL 7040 disc laser is 5000W, and the wavelength of the laser beam is 1030nm.
Example 3:
Referring to fig. 1, the present invention provides a technical solution: a preparation method of high-temperature-resistant far infrared paint comprises the following specific steps:
step one: weighing the raw materials: weighing raw materials with corresponding mass according to a weighing formula and a formula;
Step two: pretreatment: mixing ZrO 2 and Y 2O3, simultaneously performing ultrasonic dispersion, simultaneously gradually heating a sintering furnace to 800 ℃, transferring into the sintering furnace to perform constant-temperature sintering for 35min after ZrO 2 and Y 2O3 are uniformly dispersed, taking out after the sintering is completed, and naturally cooling to form a prefabricated material, wherein the constant-temperature sintering temperature is 1200 ℃;
Step three: preparing a coating A: mixing the prefabricated material in the second step with a stabilizer, putting the mixture into a ball mill, grinding for 10 hours, forming mixed powder after ball milling, mixing and stirring the mixed powder with a binder to form a mixed solution, sequentially adding a silane coupling agent and water, and continuously stirring for 50 minutes to obtain a coating A;
step four: preparing a coating B: mixing NiCrCoAlY alloy powder with silicon powder for standby, and obtaining a coating B;
step five: post-treatment: the coating A and the coating B are respectively packaged and used in combination, thus obtaining the high-temperature-resistant far infrared coating, and the specific operation of the combination is as follows:
S1, spraying a coating B on the surface of a carrier through a DH-2080 type plasma spraying device, and after uniform coating, spraying a coating A on the surface of the coating B, wherein parameters of the DH-2080 type plasma spraying device are as follows: current 530A, voltage 75V, primary air flow 40L/M, secondary air flow 10L/M, carrier gas flow 3L/M, spraying distance 100mm, spray gun power 40kw, rotation speed 30rad/M;
S2, scanning the paint B and the paint A by using a high-energy laser beam of the TRULASER CELL 7040 disc laser so as to form a molten pool, and finally rapidly cooling to finish the combined use, wherein the rated output power of the TRULASER CELL 7040 disc laser is 5000W, and the wavelength of the laser beam is 1030nm.
Comparative example 1:
The comparative example is a high-temperature-resistant far infrared coating disclosed in Chinese patent No. CN106634063B, and a preparation method and application thereof.
From the high temperature resistant far infrared coatings prepared in examples 1 to 3, 2 parts were extracted, denoted as a 1、A2、B1、B2、C1 and C 2, respectively, and then with 2 parts of the thermal barrier coating of comparative example 1, denoted as E 1 and E 2, peeling experiments, high temperature resistant experiments, and surface roughness experiments were performed, and the following results were measured:
Compared with the coating prepared by the comparative example 1, the coating prepared by the high temperature resistant far infrared coating prepared by the example 1-the example 3 is excellent in heat resistance, but the surface of the coating formed by the high temperature resistant far infrared coating prepared by the example 1-the example 3 is smoother, so that dust and dirt are not easy to accumulate on the surface of the coating, further release of far infrared is facilitated, the service performance of the coating is improved, meanwhile, the peel strength of the coating formed by the high temperature resistant far infrared coating prepared by the example 1-the example 3 is higher, the adhesiveness of the coating is further improved, the service life of the coating is prolonged, the impact resistance of the coating is improved, and the coating formed by the coating is not easy to damage.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The preparation method of the high-temperature-resistant far infrared coating is characterized in that the high-temperature-resistant far infrared coating comprises the following raw materials in percentage by weight: niCrCoAlY wt.% of alloy powder 15-20 wt.%, silicon powder 2-5 wt.%, zrO 215～20％、Y2O3 -30 wt.%, stabilizer 1-2 wt.%, silane coupling agent 0.1-0.15 wt.%, binder 20-25 wt.% and the balance water;
the preparation method of the high-temperature-resistant far infrared coating comprises the following specific steps:
step one: weighing the raw materials: weighing raw materials with corresponding mass according to a weighing formula and a formula;
Step two: pretreatment: mixing ZrO 2 and Y 2O3, simultaneously performing ultrasonic dispersion, gradually heating a sintering furnace to 600-800 ℃, after ZrO 2 and Y 2O3 are uniformly dispersed, transferring to the sintering furnace, sintering at constant temperature for 30-35 min, taking out after sintering is completed, and naturally cooling to form a prefabricated material;
step three: preparing a coating A: mixing the prefabricated material in the second step with a stabilizer, putting the mixture into a ball mill, grinding for 8-10 hours, forming mixed powder after ball milling, mixing and stirring the mixed powder with a binder to form a mixed solution, sequentially adding a silane coupling agent and water, and continuously stirring for 30-50 minutes to obtain a coating A;
step four: preparing a coating B: mixing NiCrCoAlY alloy powder with silicon powder for standby, and obtaining a coating B;
step five: post-treatment: packaging the coating A and the coating B respectively, and combining to obtain the high-temperature-resistant far infrared coating;
The specific operation of the combined use in the fifth step is as follows:
s1, spraying a coating B on the surface of a carrier through a DH-2080 type plasma spraying device, and after uniform coating, spraying a coating A on the surface of the coating B;
s2, scanning the paint B and the paint A by using a high-energy laser beam of a TRULASER CELL 7040 disc laser so as to form a molten pool, and finally rapidly cooling to finish the combined use.
2. The method for preparing a high temperature resistant far infrared paint according to claim 1, wherein Y in NiCrCoAlY alloy powder and Y 2O3 are Mo, U, re and Cr, the binder is one or more of potash water glass, sodium water glass and lithium water glass, the silane coupling agent is one or more of vinyltriethoxysilane, vinyltrimethoxysilane and vinyltris (beta-methoxyethoxy) silane, the stabilizer contains trivalent and tetravalent cations, and the particle size of the NiCrCoAlY alloy powder and silicon powder is 1-5。
3. The method for preparing a high temperature resistant far infrared coating according to claim 1, wherein the weighing formula in the step one is:
，
；
Wherein CQ is the actual demand of one raw material in a preset batch, namely raw material weighing and proportioning information; RMQ the standard required amount of the active ingredient of the raw material required for producing standard amount of the product, namely standard weighing and proportioning information; OQ is the throughput of the preset lot and production plan information; RQ is the standard throughput of the product; BP is the content of active ingredients of the material batch, namely the ingredient information of the raw materials; BC is the content of the material batch; WC is the moisture content of a batch of material.
4. The method for preparing high-temperature-resistant far infrared coating according to claim 1, wherein the constant-temperature sintering temperature in the second step is 1000-1200 ℃.
5. The method for preparing the high-temperature-resistant far infrared coating according to claim 1, wherein parameters of the DH-2080 type plasma spraying device are as follows: 500-530A of current, 70-75V of voltage, 38-40L/M of main air flow, 8-10L/M of secondary air flow, 2.5-3L/M of carrier gas flow, 100mm of spraying distance, 35-40 kW of spray gun power and 30rad/M of rotating speed; the TRULASER CELL 7040 disc laser in step S2 has a rated output power of 5000W and a laser beam wavelength of 1030nm.
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