CN111054602A - Method and apparatus for coating curved surface paint film - Google Patents

Method and apparatus for coating curved surface paint film Download PDF

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Publication number
CN111054602A
CN111054602A CN201911210114.8A CN201911210114A CN111054602A CN 111054602 A CN111054602 A CN 111054602A CN 201911210114 A CN201911210114 A CN 201911210114A CN 111054602 A CN111054602 A CN 111054602A
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CN
China
Prior art keywords
coating
film
paint
flexible film
flexible
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911210114.8A
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Chinese (zh)
Inventor
杨溢
王涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING LAN HAI TING TAO TECHNOLOGY CO.,LTD.
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Zhixiang Lantian Beijing Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201911210114.8A priority Critical patent/CN111054602A/en
Publication of CN111054602A publication Critical patent/CN111054602A/en
Pending legal-status Critical Current

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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
    • B05D3/002—Pretreatement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C21/00—Accessories or implements for use in connection with applying liquids or other fluent materials to surfaces, not provided for in groups B05C1/00 - B05C19/00
    • B05C21/005—Masking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/02—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to surfaces by single means not covered by groups B05C1/00 - B05C7/00, whether or not also using other means
    • 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
    • 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
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • B05D1/322—Removable films used as masks
    • B05D1/325—Masking layer made of peelable film
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/005—Repairing damaged coatings
    • 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
    • B05D7/24—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 for applying particular liquids or other fluent materials

Abstract

The invention provides a method and equipment for coating a curved surface coating film. A method for coating a curved surface with a coating film at least comprises cleaning a coating surface, covering a flexible film, supplying and permeating the coating, uncovering the film or moving the film, and checking the coating; the coating comprises an organic solvent type coating, or a water-based solution type coating, or a turbid liquid type coating, or a mixed gel type coating. The related equipment comprises a paint container, a cleaning layer, a first flexible film, a second flexible film and a film frame; the film frame can also be fixed by a sliding rail or a steel wire to fix a gas detection device, a coating detection device and a guide pipe to fix a solvent recovery device. The method and the equipment for coating the coating film have the advantages of saving more, adapting to curved surfaces, being more uniform in coating and reducing pollution of organic volatile solvents and fire risks compared with spraying, rolling and hairbrush methods in the prior art.

Description

Method and apparatus for coating curved surface paint film
Technical Field
The present invention relates to a method for coating a paint, and to the related apparatus. In particular to a method and equipment for coating a coating film, which realizes uniform coating, saves coating, is suitable for curved surfaces, reduces volatile pollution and reduces fire hidden danger by a film pasting method.
Background
The coating method of the coating pad pasting of the prior art mainly adopts methods such as spraying, brushing, blade coating, baking finish and the like, the coating thickness is not controllable enough, and air bubbles are easily introduced to cause uneven coating. If the coating includes an organic solvent, the solvent is volatilized to risk environmental pollution or fire; if it is desired to use a mixed gel coat, such as the known AB glue, which requires prior mixing of the raw materials, it is clear that this method does not allow the coating to be made with the same equipment, or it can clog.
In practice, using a known method of spraying, brushing and blade coating, JH0501 series thin solar heat reflecting paint, JH0502 series elastic heat reflecting paint, JH0503 aqueous industrial heat insulating paint and JH0504 transparent glass heat insulating paint are respectively coated on the surfaces of ground glass, iron sheet and granite, and three groups are averaged. It has been found in practice that although these coatings themselves have good thermal insulation properties, when the surface is uneven, or the temperature is not uniform, or the wetting property is not uniform, the probability of uneven spraying is more than 60%, although the uneven coating can be finished by secondary brushing, such an operation wastes coating, and in practice, the coating area is only on average: JH0501 product description theoretical spreading rate 42% (actual observation 2.1 m)2Kg, theoretical 5m2/kg); JH0502 product description theoretical coating rate of 60% (actual observation 1.8 m)2Kg, theoretical 3m2/kg); JH0503 product description theoretical spreading rate of 45% (actual observation of 0.9 m)2Kg, theoretical 2m2/kg); theoretical spreading rate of JH0504 product instruction book 26% (actual observation 5.2 m)2Kg, theoretical 20m2Kg) and the difference between the maximum value and the minimum value of the coating area of each group does not exceed the minimum value, so that the known methods of spraying, brushing and blade coating are difficult to achieve more than 60% of the theoretical coating area of the specifications of the coating products, and have the limitation of waste.
The comparison document CN201380131 discloses a disc paint spraying device, and the comparison document CN107812635A discloses a fog type spray film pasting device and a using method thereof, both of the two known technologies are spraying or paint spraying technologies, for example, when the thermal insulation paint is sprayed in a certain grain depot, it takes nearly one week to perform ventilation drying, otherwise, the organic solvent paint can cause toxicity, and the moisture environment caused by the aqueous paint can make the grain depot easily go bad, so the devices and methods of the comparison documents have the limitations that the splashing and volatilization cannot be prevented, and the potential pollution risk is brought.
Disclosure of Invention
The invention aims to provide a method and equipment for coating a coating, which have the advantages of uniform coating, coating saving, volatile pollution reduction and fire hazard reduction.
To achieve the above object, there is provided a method for coating a paint film, comprising: step one, cleaning a coating surface, and preparing to start the operation of step two of the coating method; covering a flexible film, wherein the flexible film is a film which is not soaked in the used coating solvent, the flexible film is attached to the coating surface, and an air layer with the thickness of less than 0.5mm is left to prepare a third step; step three, supplying and permeating a coating, dropwise adding the coating between the flexible film and the coating surface, and executing step four after dropwise adding the coating; step four, uncovering the flexible film or moving the film, wherein the step four is a step of uncovering the flexible film or translating the flexible film on the coating surface after the step three is executed, and then the step five is carried out; step five, checking the coating, wherein the checking of the coating refers to finding and eliminating defects that the coating is not coated, or the coating is polluted, or the coating is agglomerated or is not uniformly coated, and recovering the volatilized coating solvent for reuse in time; and step six, finishing the coating work.
The coating comprises an organic solvent type coating, or a water-based solution type coating, or a turbid liquid type coating, or a mixed gel type coating.
At least one of the flexible films adopted in the second step and the fourth step is transparent; the paint comprises at least one of JH0501 series thin solar heat reflection paint, JH0502 series elastic heat reflection paint, JH0503 aqueous industrial heat insulation paint and JH0504 transparent glass heat insulation paint.
The invention provides coating film sticking and coating equipment in a matching way. The coating film coating equipment is used for carrying out the coating film coating method and comprises a coating container, wherein the coating container is a container for containing organic solvent type coating, or water-based solution type coating, or turbid liquid type coating, or mixed gel type coating raw materials; the cleaning layer is a thin belt-shaped layer for washing or adhering surface pollutants; the opening of the first flexible coating conduit is positioned on one side of the first flexible film attached to the clean coating surface; a second flexible film that is a finishing coated flexible film; the wetting layer is a fabric layer which is wetted but not dissolved in the coating, and the wetting layer is connected with the first flexible film and the second flexible film in a wire clamping manner; the film frame is a bendable closed polygon, the number of the sides of the polygon is more than or equal to four and less than or equal to eight, and the first flexible film and the second flexible film are fixed by the winding drum; the gas detection device is a component test instrument for detecting paint components and volatile derivatives; the coating detection device is nondestructive detection equipment for detecting coating thickness, components, drying degree and impurities. .
When the coating method of the coating film adopts an organic solvent, the film frame can also be fixed by a sliding rail or a steel wire to fix a gas detection device and a coating detection device.
Preferably, the equipment for coating the paint film further comprises a solvent recovery device, and the solvent recovery device at least comprises an air suction hood and an air extractor; the air suction cover is a horn-shaped cover with the direction parallel to the contact seam positions of the flexible film and the coating surface, and the air suction cover is connected with the film frame and the air extractor through a guide pipe.
Practice shows that by adopting the equipment and the method, the coating surface and the coating are repeatedly coated, and four surface coating rates are respectively achieved: JH0501 product description theoretical spreading rate of 102% (actual observation 5.1 m)2Kg, theoretical 5m2/kg); JH0502 product description theoretical spreading rate of 83% (actual observation 2.5 m)2Kg, theoretical 3m2/kg); JH0503 product description theoretical spreading rate of 110% (actual observation 2.2 m)2Kg, theoretical 2m2/kg); JH0504 product description theoretical coating rate of 101.5% (actual observation 20.3 m)2Kg, theoretical 20m2Kg), three of which achieve higher than theoretical efficiency and the efficiency of which is improved over the original efficiency if the theoretical efficiency is not achieved, thus providing unexpected results with the method described in the present application. Also, the first flexible film and the second flexible film may be suitable for coating of curved surfaces.
As can be seen from the above description and practice of the present invention, the curved paint pad coating method and apparatus provided by the present invention has the advantages of adaptability to different shapes of coating surfaces, more paint saving, more uniform coating, and reduced organic volatile solvent contamination and fire risk compared with the prior art spray coating, roller, brush method.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of a second embodiment of the present invention.
Fig. 3 is a third schematic diagram of an embodiment of the invention.
Reference numerals: 1: paint container, 2: cleaning layer, 31: first flexible film, 32, wetting layer, 33: second flexible film, 5: film frame, 6: gas detection device, 7: coating detection device, 8: suction hood, 9: an air extractor.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. On the basis of the following examples, a person skilled in the art, without making any inventive step, will be able to modify the basic principles of the claims without modifying them and without modifying them to obtain all other embodiments which fall within the scope of protection of the invention.
To achieve the above object, there is provided a method for coating a paint film, comprising: step one, cleaning a coating surface, and preparing to start the operation of step two of the coating method; covering a flexible film, wherein the flexible film is a film which is not soaked in the used coating solvent, the flexible film is attached to the coating surface, and an air layer with the thickness of less than 0.5mm is left to prepare a third step; step three, supplying and permeating a coating, dropwise adding the coating between the flexible film and the coating surface, and executing step four after dropwise adding the coating; step four, uncovering the flexible film or moving the film, wherein the step four is a step of uncovering the flexible film or translating the flexible film on the coating surface after the step three is executed, and then the step five is carried out; step five, inspecting the coating, wherein the inspection of the coating refers to finding and eliminating defects of non-coating or coating pollution or coating agglomeration or coating unevenness of the coating, if the defects exist, returning to the step two, and if the defects do not exist, entering the step six; and step six, finishing the coating work.
The first embodiment is as follows:
the paint can comprise an organic solvent type paint, or a water-based solution type paint, or a turbid liquid type paint, or a mixed gel type paint, and for convenience of implementation, commercially available JH0501 series thin solar heat reflection paint, JH0502 series elastic heat reflection paint, JH0503 water-based industrial heat insulation paint and JH0504 transparent glass heat insulation paint are respectively coated on the surfaces of ground glass, iron sheet and granite. At least one of the flexible films adopted in the second step and the fourth step is transparent.
And (3) providing coating film sticking and coating equipment in a matching way. The coating film coating equipment is used for carrying out the coating film coating method and comprises a coating container 1, wherein the coating container 1 is used for containing organic solvent type coating, or water-based solution type coating, or turbid liquid type coating; the cleaning layer 2 is a strip-shaped thin layer for washing or adhering the surface pollutants; a first flexible film 31, wherein the first flexible film 31 is a flexible film attached to the clean coating surface, the first flexible film 31 is connected with the coating container 1 through a coating conduit, and an opening of the coating conduit is positioned at one side of the first flexible film 31 attached to the clean coating surface, so that the splashing problem is solved; a second flexible film 33, the second flexible film 33 being a flexible film of a finish coating; the wetting layer 32 is a fabric layer which is wetted but not dissolved in the coating, and the first flexible film 31 and the second flexible film 33 are connected in a wire clamping manner; the film frame 5 is a bendable closed polygon, the number of the polygon sides is more than or equal to four and less than or equal to eight, and the first flexible film 31 and the second flexible film 33 are fixed through a winding drum. The pellicle frame 5 may be curved and use a flexible membrane because the coated surface may not be flat but curved, so that a curved polygon is advantageous for adapting to differently shaped coated surfaces.
When the coating is not solidified, the gaps between the first flexible film 31 and the second flexible film 33 and the coating surface are beneficial to the penetration of the coating due to surface tension, and are uniformly distributed and used for lubricating gaps, so that the first flexible film 31 and the second flexible film 33 can slide on the surface, and the problems of volatilization, splashing and waste of the coating are solved.
Practice also shows that by adopting the equipment and the method, four surface coating rates are respectively achieved: JH0501 product description theoretical spreading rate of 102% (actual observation 5.1 m)2Kg, theoretical 5m2/kg); JH0502 product description theoretical spreading rate of 83% (actual observation 2.5 m)2Kg, theoretical 3m2/kg); JH0503 product description theoretical spreading rate of 110% (actual observation 2.2 m)2Kg, theoretical 2m2/kg); JH0504 product description theoretical coating rate of 101.5% (actual observation 20.3 m)2Kg, theoretical 20m2Kg), three of which achieve higher than theoretical efficiency and the efficiency of which is improved over the original efficiency if the theoretical efficiency is not achieved, thus providing unexpected results with the method described in the present application. Also, the first flexible film and the second flexible film may be suitable for coating of curved surfaces.
Example two:
in this example, a mixed setting type paint, for example, a coating layer of an epoxy resin is used, and in this case, the paint container 1 is a container in which a gel type paint raw material is mixed, and since the number of the mixed gel type paint raw materials is more than 2, the number of the paint containers 1 is 2 or more.
Example three:
in this embodiment, an organic solvent is used, and at this time, the film frame 5 may further be fixed by a sliding rail or a steel wire to fix the gas detection device 6 and the coating detection device 7.
The equipment for coating the coating film further comprises a solvent recovery device, wherein the solvent recovery device at least comprises an air suction cover 8 and an air extractor 9; the air suction cover 8 is a horn-shaped cover with the direction parallel to the contact seam position of the second flexible film 33 and the coating surface, and the air suction cover 8 is connected with the film frame 5 and the air suction machine 9 through pipes. The first flexible film 31 and the second flexible film 33 are isolated from air, so that the volatilization of the coating is slowed down; when the film isolation and solvent recovery device exists, the organic solvent can not be directly volatilized into the air, so that the organic volatile solvent pollution and the fire risk can be reduced.
From the above description and practice of the present invention, it can be seen that the method and apparatus for coating paint film according to the present invention has the advantages of adapting to different shapes of coating surfaces, saving more paint, providing more uniform coating, and reducing volatile solvent contamination and fire risk than the prior art spray, roller, brush methods.
In addition, the characteristics not described in detail in this document, such as the kind of the hydrophilic or organophilic flexible membrane, the specific kind of the material, the coating composition, the kind, the method of fixing and washing the catheter, and the leakage prevention of the catheter and the coating container, the specific structure of the gas detection device and the coating detection device and the detection method, belong to the known technology and are not the technical problems to be solved by this application.
The above solution is only a part of the description of the preferred embodiments of the present application, but the protection scope of the present application is not limited to the above embodiments, and any person skilled in the art can easily implement the invention within the scope of the present application, or the claims are not changed to refer to the changes or substitutions of the basic principle, for example, on the basis of the above embodiments, only the number, shape, type of the related paint, auxiliary agent, etc. of the paint container, the flexible film, or only the length and thickness of the film frame are changed non-inventively, and only the combination easily conceived by referring to the present application and the known technology is included in the protection scope of the present application, i.e. the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (6)

1. The curved surface coating film pasting coating method is characterized by comprising the following steps:
cleaning a coating surface, and preparing to start the second step of the curved surface paint film coating method;
covering a flexible film, wherein the flexible film is a film which is not soaked in the used coating solvent, the flexible film is attached to the coating surface, and an air layer with the thickness of less than 0.5mm is left to prepare a third step;
step three, supplying and permeating a coating, dropwise adding the coating between the flexible film and the coating surface, and executing step four after dropwise adding the coating;
step four, uncovering the flexible film or moving the film, wherein the step four is a step of uncovering the flexible film or translating the flexible film on the coating surface after the step three is executed, and then the step five is carried out;
step five, inspecting the coating, wherein the inspection of the coating refers to finding and removing defects of non-coating or coating pollution or coating agglomeration or coating unevenness of the coating, and recovering and reusing the volatilized coating solvent in time, when the defects exist, returning to the step two, recovering the volatilized coating solvent to return to the step three, and when the defects do not exist, entering the step six;
and step six, finishing the coating work.
2. The curved surface paint film coating method of claim 1, wherein:
the coating comprises an organic solvent type coating, or a water-based solution type coating, or a turbid liquid type coating, or a mixed gel type coating.
3. The curved surface paint pad pasting coating method of claim 1 or 2, characterized in that:
at least one of the flexible films adopted in the second step and the fourth step is transparent; the paint comprises at least one of JH0501 series thin solar heat reflection paint, JH0502 series elastic heat reflection paint, JH0503 aqueous industrial heat insulation paint and JH0504 transparent glass heat insulation paint.
4. Curved surface coating pad pasting coating equipment which characterized in that:
the curved paint pad application apparatus for performing the curved paint pad application method of claim 1, comprising: a paint container for containing an organic solvent type paint, or a water-based solution type paint, or a turbid liquid type paint, or a mixed gel type paint raw material; a cleaning layer that is a thin, ribbon-like layer that washes or adheres to the coated surface contaminants; a first flexible membrane attached to the clean coated surface, the first flexible membrane connected to the paint container with a paint conduit, the opening of the paint conduit located on a side of the first flexible membrane attached to the clean coated surface; a second flexible film that is a finishing coated flexible film; the wetting layer is a fabric layer which is wetted but not dissolved in the coating, and the first flexible film and the second flexible film are connected in a wire clamping manner; the film frame is a bendable closed polygon, the number of the sides of the polygon is more than or equal to four and less than or equal to eight, and the first flexible film and the second flexible film are fixed by the winding drum; the gas detection device is a component test instrument for detecting paint components and volatile derivatives; the coating detection device is nondestructive detection equipment for detecting coating thickness, components, drying degree and impurities.
5. The curved paint filming apparatus of claim 4 further characterized by:
when the curved surface coating film pasting coating method adopts an organic solvent, the film frame is fixed by a sliding rail or a steel wire to fix the gas detection device and the coating detection device.
6. The curved paint filming apparatus of claim 4 or 5, wherein:
the equipment for coating the curved surface coating film also comprises a solvent recovery device, wherein the solvent recovery device at least comprises an air suction cover and an air extractor; the air suction cover is a horn-shaped cover with the direction parallel to the contact seam positions of the flexible film and the coating surface, and the air suction cover is connected with the film frame and the air extractor through a guide pipe.
CN201911210114.8A 2019-12-02 2019-12-02 Method and apparatus for coating curved surface paint film Pending CN111054602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911210114.8A CN111054602A (en) 2019-12-02 2019-12-02 Method and apparatus for coating curved surface paint film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911210114.8A CN111054602A (en) 2019-12-02 2019-12-02 Method and apparatus for coating curved surface paint film

Publications (1)

Publication Number Publication Date
CN111054602A true CN111054602A (en) 2020-04-24

Family

ID=70299219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911210114.8A Pending CN111054602A (en) 2019-12-02 2019-12-02 Method and apparatus for coating curved surface paint film

Country Status (1)

Country Link
CN (1) CN111054602A (en)

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Effective date of registration: 20220216

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Applicant after: BEIJING LAN HAI TING TAO TECHNOLOGY CO.,LTD.

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Application publication date: 20200424