CN115106271A - Biomass boiler heating surface water-based paint coating process - Google Patents
Biomass boiler heating surface water-based paint coating process Download PDFInfo
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- CN115106271A CN115106271A CN202210885128.5A CN202210885128A CN115106271A CN 115106271 A CN115106271 A CN 115106271A CN 202210885128 A CN202210885128 A CN 202210885128A CN 115106271 A CN115106271 A CN 115106271A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a coating process of a water-based paint on a heating surface of a biomass boiler, and particularly relates to the technical field of coating processes, and the coating process comprises the following steps: selecting and cleaning a substrate, polishing and cleaning the surface of the substrate, coating a bottom coating, coating a surface coating, calcining and cooling, and processing the substrate. According to the invention, on the basis of a traditional water-based paint spraying process, the bottom surface paint is firstly applied to two sides of a prepared boiler substrate, the surface paint is coated in a double mode, and then the coated boiler substrate is prepared into the required boiler, so that the uniformity of the water-based paint sprayed on the boiler surface can be improved, the water-based paint is uniformly coated at the corners and dead corners of the heated boiler, the phenomena that the corners and the dead corners are corroded and thinned due to the fact that the water-based paint is not uniformly coated on the boiler heated part can be avoided, the corrosion resistance and the high temperature resistance of the heated boiler part are improved, and the service life of the boiler is prolonged.
Description
Technical Field
The invention belongs to the technical field of coating processes, and particularly relates to a coating process of a water-based paint on a heating surface of a biomass boiler.
Background
Biomass boiler is a kind of boiler, and the boiler that uses the biomass energy as fuel is called biomass boiler, and biomass boiler adopts biomass fuel because of its fuel, for example, peanut shell, straw, saw-dust, bamboo bits and branch, and at biomass fuel's in-process of burning, the fuel is inside to all generally all to have certain moisture content, leads to media such as sulphur, chlorine, steam to cause the corruption to the department of being heated of boiler easily.
The coating process mainly comprises two types of spraying and dip-coating, the coating of the heating surface of the boiler is complex due to the structure of the parts, and the coating liquid is difficult to cover the whole boiler surface and is easy to leave dead angles when the spraying construction is adopted, so that the coating is not completely coated.
Through search, the invention patent of patent application publication number CN201610232897.X discloses a water-based paint coating process of a boiler heating surface and a paint dipping tank device thereof, wherein the water-based paint coating process of the boiler heating surface is disclosed, and the boiler is suspended in a dip-coating mode so that a hot spot of the boiler is dipped into immersion liquid for dip-coating.
However, in the above patent, the heating surface of the boiler is dip-coated in a suspended manner, the boiler is often large and heavy, a large crane is required to be used when the boiler is suspended, and the boiler is not suitable for coating a large number of boilers.
In view of the above, the invention provides a coating process of a water-based paint for a heating surface of a biomass boiler.
Disclosure of Invention
The invention provides a water-based paint coating process for a heating surface of a biomass boiler, and aims to solve the problems that the heating surface of the boiler is dip-coated in a boiler suspension mode, the boiler is large and heavy, a large crane is required to be used when the boiler is suspended, the boiler is not suitable for coating a large number of boilers, and after the boiler is prepared, the boiler is only coated in a dip-coating mode on the outer wall of the boiler due to different shapes and sizes of the boiler, the inner wall of the boiler is inconvenient to coat, and the heating surface of the boiler is an integral area of the inner wall of the boiler, so that the boiler is not completely coated.
The invention is realized in such a way, and provides the following technical scheme: a coating process of a water-based paint on a heating surface of a biomass boiler specifically comprises the following steps:
selecting a substrate for preparing a biomass boiler, washing two surfaces of the substrate in a large area by using a water gun simultaneously, removing dust, oil stains and rusty parts on the surface of the substrate, drying, calcining the substrate at high temperature, and removing burrs attached to the surface of the substrate;
step two, the substrate is subjected to manual polishing and grinding treatment, the residual burr part on the surface is removed, and the substrate is dried after being cleaned;
spraying bottom surface coatings on the front surface and the back surface of the substrate to enable the bottom surface coatings to be uniformly coated on the two surfaces of the substrate, and drying the substrate by using a dryer, wherein the thickness of the sprayed bottom surface coatings is 60-80 um, and the drying time is 5-8 min;
step four, after the bottom surface coating is coated and dried, spraying the surface coating on the surface of the bottom surface coating, and drying again through a dryer, wherein the spraying thickness of the surface coating is 40-60 um, and drying is carried out for 5-8min
Step five, after the surface coating is dried, calcining the substrate at the temperature of 60-80 ℃, placing the substrate in water for cooling, and placing the substrate in a ventilated environment for 4-6 hours;
and step six, carrying out heat treatment on the sprayed substrate, carrying out hot rolling, normalizing, pricking control, annealing, tempering and normalizing, finally modulating, preparing the substrate into a biomass boiler after hot bending, and smearing the bottom surface coating and the surface coating at the bent position.
In a preferred embodiment, in the second step, the drying manner is any one of natural airing, air drying and high-temperature drying.
In a preferred embodiment, in the third step, the primer is formed by mixing 50-80 parts of water-based epoxy resin, 15-45 parts of reactive diluent and 5-10 parts of water, and in the fourth step, the surface coating is formed by mixing 60-80 parts of water-based polyurethane coating, 15-35 parts of modifier and 5-10 parts of water.
In a preferred embodiment, in the third step and the fourth step, the spraying mode adopts a spray gun for spraying, the caliber of the spray gun is 2-5mm, the spray gun and the substrate are vertically distributed, the height between the spray gun and the substrate is 200-300mm, the spray gun and the substrate are in uniform speed parallel movement at the speed of 300-450mm/s, and the pressure of the spray gun is 10-18 mpa.
In a preferred embodiment, in the step five, when the substrate is calcined at the temperature of 60-80 ℃, the temperature is 25-30 ℃ in a ventilation environment, the wind speed is 0.4-0.6m/s, and the wind head of the fan is deflected up, down, left and right in cooperation with the ventilation treatment of the fan.
In a preferred embodiment, the substrate is any one of gray cast iron or ferromanganese, and the cross-sectional shape is configured as a rectangle having a thickness of 150 mm.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the spraying process of the traditional water-based paint, the bottom surface paint is firstly applied to two sides of the prepared boiler substrate, the surface paint is dually applied, and then the applied boiler substrate is prepared into the required boiler, so that the uniformity of the sprayed boiler surface water-based paint can be improved, the water-based paint can be uniformly applied to corners, inner and outer walls and dead corners of the heated boiler, the corrosion and thinning of the corners and dead corners caused by the uneven application of the surface water-based paint at the heated boiler position can be avoided, the corrosion resistance and high temperature resistance of the heated boiler position can be improved, and the service life of the boiler can be prolonged;
2. before the substrate is coated, the substrate is subjected to the processes of dust removal, oil stain, corrosion and the like, the adhesiveness of the coated water-based paint can be improved, the substrate is prevented from falling off in the using process, meanwhile, in the deburring process of the substrate, burrs are melted by adopting a high-temperature calcination mode and then are removed by manual polishing, the simplicity and convenience of the deburring process are improved, the operation time is reduced, the corrosion resistance of a heated part of a boiler can be improved by utilizing double coating of two surfaces, the corrosion resistance of the heated part of the boiler can be improved by coating the bottom surface paint, the high-temperature resistance of the heated part of the boiler can be improved by coating the surface paint, so that the boiler obtains the advantages of high temperature resistance and corrosion resistance when in use, the high-temperature calcination is carried out again after the coating is finally coated, the coating permeates the inside of the substrate and forms strong adhesion with the substrate, and the water-based paint is adopted to replace the traditional solvent-based paint, greatly reduces the emission of organic solvent, remarkably lightens the environmental pollution and eliminates the flammable and explosive risk factors of the traditional solvent-based coating.
Detailed Description
Examples 1,
A coating process of a water-based paint on a heating surface of a biomass boiler specifically comprises the following steps:
selecting a substrate for preparing a biomass boiler, simultaneously washing two surfaces of the substrate in a large area by using a water gun, removing dust, oil stains and rusty parts on the surface of the substrate, drying, calcining the substrate at high temperature, and removing burrs attached to the surface of the substrate, wherein the substrate is made of gray cast iron or ferromanganese, the cross section of the substrate is rectangular, and the thickness of the substrate is 150 mm;
step two, manually polishing and grinding the substrate to remove the residual burr part on the surface, and drying the substrate after cleaning in a natural drying mode;
spraying bottom surface coatings on the front surface and the back surface of the substrate to enable the bottom surface coatings to be uniformly coated on the two surfaces of the substrate, and drying the substrate in a dryer, wherein the spraying thickness of the bottom surface coatings is 65 mu m, the drying time is 5min, and the bottom surface coatings are formed by mixing 55 parts of water-based epoxy resin, 40 parts of reactive diluent and 5 parts of water;
after the bottom surface coating is coated and dried, spraying surface coating on the surface of the bottom surface coating, and drying again through a dryer, wherein the spraying thickness of the surface coating is 45 mu m, and the surface coating is dried for 6min and is formed by mixing 60 parts of waterborne polyurethane coating, 35 parts of modifier and 5 parts of water;
spraying by using a spray gun in the third spraying mode and the fourth spraying mode, wherein the caliber of the spray gun is 3mm, the spray gun and the substrate are vertically distributed, the height between the spray gun and the substrate is 280mm, the spray gun and the substrate do uniform-speed parallel motion at the speed of 350mm/s, and the pressure of the spray gun is 12 mpa;
step five, after the surface coating is dried, calcining the substrate at the temperature of 65 ℃ again, placing the substrate in water for cooling, placing the substrate in a ventilation environment for 4.5 hours, calcining the substrate at the temperature of 65 ℃ until the surface of the substrate is light black, wherein the temperature is 26 ℃ and the wind speed is 0.45m/s in the ventilation environment, and the wind head of the fan deflects up, down, left and right in cooperation with ventilation treatment of the fan;
and step six, carrying out heat treatment on the sprayed substrate, carrying out hot rolling, normalizing, pricking control, annealing, tempering and normalizing, finally modulating, preparing the substrate into a biomass boiler after the substrate is thermally bent, and coating the bottom surface coating and the surface coating at the bent position.
After the water-based paint of this example was applied, its performance was tested and the results are shown in the following table.
Examples 2,
A coating process of a water-based paint on a heating surface of a biomass boiler specifically comprises the following steps:
selecting a substrate for preparing a biomass boiler, simultaneously washing two surfaces of the substrate in a large area by using a water gun, removing dust, oil stains and rusty parts on the surface of the substrate, drying, calcining the substrate at high temperature, and removing burrs attached to the surface of the substrate, wherein the substrate is made of gray cast iron or ferromanganese, the cross section of the substrate is rectangular, and the thickness of the substrate is 150 mm;
step two, manually polishing and grinding the substrate to remove the residual burr part on the surface, and drying the substrate after cleaning in a natural drying mode;
spraying bottom surface coatings on the front surface and the back surface of the substrate to enable the bottom surface coatings to be uniformly coated on the two surfaces of the substrate, and drying the substrate in a dryer, wherein the spraying thickness of the bottom surface coatings is 70 mu m, the drying time is 6min, and the bottom surface coatings are formed by mixing 70 parts of water-based epoxy resin, 20 parts of reactive diluent and 10 parts of water;
after the bottom surface coating is coated and dried, spraying surface coating on the surface of the bottom surface coating, and drying again by a dryer, wherein the spraying thickness of the surface coating is 50 microns, and drying is carried out for 7min, and the surface coating is formed by mixing 70 parts of waterborne polyurethane coating, 25 parts of modifier and 5 parts of water;
spraying by using a spray gun in the third spraying mode and the fourth spraying mode, wherein the caliber of the spray gun is 4mm, the spray gun and the substrate are vertically distributed, the height between the spray gun and the substrate is 240mm, the spray gun and the substrate do uniform-speed parallel motion at the speed of 380mm/s, and the pressure of the spray gun is 15 mpa;
step five, after the surface coating is dried, calcining the substrate at the temperature of 70 ℃ again, placing the substrate in water for cooling, placing the substrate in a ventilation environment for 5 hours, calcining the substrate at the temperature of 70 ℃ until the surface of the substrate is light black, wherein the temperature in the ventilation environment is 27 ℃, the wind speed is 0.5m/s, and the wind head of a fan is deflected up, down, left and right by matching with ventilation treatment of the fan;
and step six, carrying out heat treatment on the sprayed substrate, carrying out hot rolling, normalizing, pricking control, annealing, tempering and normalizing, finally modulating, preparing the substrate into a biomass boiler after the substrate is thermally bent, and coating the bottom surface coating and the surface coating at the bent position.
In this example, the thickness of the primer and topcoat applied, the parameters of the spray gun application and the parameters of the high-temperature calcination were different from those of example 1, and the substrate raw material and the components used in the coating were the same, and the specific application properties are shown in the following table.
Examples 3,
A coating process of a water-based paint on a heating surface of a biomass boiler specifically comprises the following steps:
selecting a substrate for preparing a biomass boiler, simultaneously washing two surfaces of the substrate in a large area by using a water gun, removing dust, oil stains and rusty parts on the surface of the substrate, drying, calcining the substrate at high temperature, and removing burrs attached to the surface of the substrate, wherein the substrate is made of gray cast iron or ferromanganese, the cross section of the substrate is rectangular, and the thickness of the substrate is 150 mm;
step two, manually polishing and grinding the substrate to remove the residual burr part on the surface, and drying the substrate after cleaning in a natural drying mode;
spraying bottom surface coatings on the front surface and the back surface of the substrate to enable the bottom surface coatings to be uniformly coated on the two surfaces of the substrate, and drying the substrate in a dryer, wherein the spraying thickness of the bottom surface coatings is 65 mu m, the drying time is 6min, and the bottom surface coatings are formed by mixing 75 parts of water-based epoxy resin, 15 parts of reactive diluent and 10 parts of water;
after the bottom surface coating is coated and dried, spraying the surface coating on the surface of the bottom surface coating, and drying again by a dryer, wherein the spraying thickness of the surface coating is 55 microns, and drying is carried out for 8min, and the surface coating is formed by mixing 70 parts of waterborne polyurethane coating, 22 parts of modifier and 8 parts of water;
spraying by using a spray gun in the third spraying mode and the fourth spraying mode, wherein the caliber of the spray gun is 3mm, the spray gun and the substrate are vertically distributed, the height between the spray gun and the substrate is 280mm, the spray gun and the substrate do uniform-speed parallel motion at the speed of 400mm/s, and the pressure of the spray gun is 18 mpa;
step five, after the surface coating is dried, calcining the substrate at the temperature of 75 ℃ again, placing the substrate in water for cooling, placing the substrate in a ventilation environment for 6 hours, calcining the substrate at the temperature of 75 ℃ until the surface of the substrate is light black, wherein the temperature in the ventilation environment is 28 ℃, the wind speed is 0.6m/s, and the wind head of the fan deflects up, down, left and right in cooperation with ventilation treatment of the fan;
and step six, carrying out heat treatment on the sprayed substrate, carrying out hot rolling, normalizing, pricking control, annealing, tempering and normalizing, finally modulating, preparing the substrate into a biomass boiler after the substrate is thermally bent, and coating the bottom surface coating and the surface coating at the bent position.
In this example, different from examples 1 and 2, the thickness of the primer and topcoat to be sprayed, the spray gun spray parameters, and the respective parameters during high-temperature calcination were different from each other when the substrate was sprayed, and the substrate raw material and the respective components used for the coating were the same, and the specific application properties are shown in the following table.
And (3) performance testing:
after the water-based paint is sprayed on the heated part of the biomass boiler in the above examples 1-3, the surface of the heated part of the biomass boiler is sprayed with the water-based paint, and the performances of the water-based paint, such as adhesion (after one week of use), corrosion resistance and high temperature resistance (after seven weeks of use) are tested;
the spraying condition of the water-based paint is mainly used for testing the spraying uniformity of the water-based paint on the whole surface of the boiler, whether bubbles are generated or not and whether the phenomenon that the paint is not sprayed at the corners occurs or not;
the adhesiveness is mainly used for testing whether the boiler falls off after being used at a high temperature for a week;
the corrosion resistance and high temperature resistance test mainly tests whether the surface of the heated part of the boiler is rusted and thinned.
In conclusion, in example 2, after the water-based paint is sprayed on the heated part of the boiler, the service condition and various performances of the heated part of the boiler are obviously superior to those of examples 1 and 2, but the effects of examples 1 and 2 are obviously improved on the traditional spraying (dip coating), so that the invention can prove that the uniformity of the water-based paint sprayed on the surface of the boiler can be improved, the water-based paint is uniformly coated on the corners and dead corners of the heated part of the boiler due to the fact that the water-based paint is not uniformly coated on the surfaces of the boiler, the corrosion resistance and the high temperature resistance of the heated part of the boiler are improved, the service life of the boiler is prolonged;
secondly, the double-coating of the two sides is adopted, the corrosion resistance of the heated part of the boiler can be improved by coating the bottom surface coating, the high-temperature resistance of the heated part of the boiler can be improved by coating the surface coating, so that the boiler has the advantages of high temperature resistance and corrosion resistance when in use, the process is simple and feasible, and the requirement of the comprehensive coating of the heated part of the boiler is met.
Furthermore, the embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A coating process of a water-based paint on a heating surface of a biomass boiler is characterized by comprising the following steps:
selecting a substrate for preparing a biomass boiler, washing two surfaces of the substrate in a large area by using a water gun simultaneously, removing dust, oil stains and rusty parts on the surface of the substrate, drying, calcining the substrate at high temperature, and removing burrs attached to the surface of the substrate;
step two, the substrate is subjected to manual polishing and grinding treatment, the residual burr part on the surface is removed, and the substrate is dried after being cleaned;
spraying bottom surface coatings on the front surface and the back surface of the substrate to enable the bottom surface coatings to be uniformly coated on the two surfaces of the substrate, and drying the substrate by using a dryer, wherein the thickness of the sprayed bottom surface coatings is 60-80 um, and the drying time is 5-8 min;
after the bottom surface coating is coated and dried, spraying the surface coating on the surface of the bottom surface coating, and drying again by a dryer, wherein the thickness of the sprayed surface coating is 40-60 um, and drying for 5-8 min;
step five, after the surface coating is dried, calcining the substrate at the temperature of 60-80 ℃, placing the substrate in water for cooling, and placing the substrate in a ventilated environment for 4-6 hours;
and step six, carrying out heat treatment on the sprayed substrate, carrying out hot rolling, normalizing, pricking control, annealing, tempering and normalizing, finally modulating, preparing the substrate into a biomass boiler after hot bending, and smearing the bottom surface coating and the surface coating at the bent position.
2. The coating process of the water-based paint for the heating surface of the biomass boiler, according to claim 1, is characterized in that: in the second step, the drying mode is any one of natural drying, air drying and high-temperature drying.
3. The coating process of the water-based paint for the heating surface of the biomass boiler, according to claim 1, is characterized in that: in the third step, the primer is formed by mixing 50-80 parts of waterborne epoxy resin, 15-45 parts of reactive diluent and 5-10 parts of water, and in the fourth step, the surface coating is formed by mixing 60-80 parts of waterborne polyurethane coating, 15-35 parts of modifier and 5-10 parts of water.
4. The coating process of the water-based paint for the heating surface of the biomass boiler, according to claim 1, is characterized in that: in the third step and the fourth step, the spraying mode adopts a spray gun for spraying, the caliber of the spray gun is 2-5mm, the spray gun and the substrate are vertically distributed, the height between the spray gun and the substrate is 200 plus 300mm, the spray gun and the substrate do uniform speed parallel motion at the speed of 300 plus 450mm/s, and the pressure of the spray gun is 10-18 mpa.
5. The coating process of the water-based paint for the heating surface of the biomass boiler, according to claim 1, is characterized in that: in the fifth step, when the substrate is calcined at the temperature of 60-80 ℃, the temperature is 25-30 ℃ in a ventilation environment, the wind speed is 0.4-0.6m/s, and the wind head of the fan deflects up, down, left and right in cooperation with ventilation treatment of the fan.
6. The coating process of the water-based paint for the heating surface of the biomass boiler, according to claim 1, is characterized in that: the substrate is any one of gray cast iron or ferromanganese, the cross section of the substrate is rectangular, and the thickness of the substrate is 150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210885128.5A CN115106271A (en) | 2022-07-26 | 2022-07-26 | Biomass boiler heating surface water-based paint coating process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210885128.5A CN115106271A (en) | 2022-07-26 | 2022-07-26 | Biomass boiler heating surface water-based paint coating process |
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| CN115106271A true CN115106271A (en) | 2022-09-27 |
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| CN202210885128.5A Pending CN115106271A (en) | 2022-07-26 | 2022-07-26 | Biomass boiler heating surface water-based paint coating process |
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|---|---|---|---|---|
| GB483180A (en) * | 1936-03-17 | 1938-04-13 | Chambon Corp | An improved method of coating cans and the product obtained thereby |
| US5407702A (en) * | 1993-05-05 | 1995-04-18 | Aluminum Company Of America | Method for coating a metal strip |
| JPH09233780A (en) * | 1996-02-21 | 1997-09-05 | Nippon Parkerizing Co Ltd | Method for coating surface of laminated motor core with electrically insulating film |
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| CN111040599A (en) * | 2019-12-20 | 2020-04-21 | 湖北锦拓新材料科技有限公司 | Water-based two-component weather-resistant finish paint and preparation method thereof |
-
2022
- 2022-07-26 CN CN202210885128.5A patent/CN115106271A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB483180A (en) * | 1936-03-17 | 1938-04-13 | Chambon Corp | An improved method of coating cans and the product obtained thereby |
| US5407702A (en) * | 1993-05-05 | 1995-04-18 | Aluminum Company Of America | Method for coating a metal strip |
| JPH09233780A (en) * | 1996-02-21 | 1997-09-05 | Nippon Parkerizing Co Ltd | Method for coating surface of laminated motor core with electrically insulating film |
| JP2001271177A (en) * | 2000-03-27 | 2001-10-02 | Sumitomo Metal Ind Ltd | Surface treated steel sheet for fuel vessel excellent in resistance to corrosion by degrade gasoline |
| CN107234047A (en) * | 2017-04-14 | 2017-10-10 | 河北晨阳工贸集团有限公司 | The special-purpose aqueous paint spraying method of engineering machinery |
| CN111040599A (en) * | 2019-12-20 | 2020-04-21 | 湖北锦拓新材料科技有限公司 | Water-based two-component weather-resistant finish paint and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨胜强等, 国防工业出版社 * |
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