CN114853351B - Processing method of heat-insulating coating film of plate glass - Google Patents
Processing method of heat-insulating coating film of plate glass Download PDFInfo
- Publication number
- CN114853351B CN114853351B CN202210515749.4A CN202210515749A CN114853351B CN 114853351 B CN114853351 B CN 114853351B CN 202210515749 A CN202210515749 A CN 202210515749A CN 114853351 B CN114853351 B CN 114853351B
- Authority
- CN
- China
- Prior art keywords
- liquid
- coating
- machine head
- paint
- coating film
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/008—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character comprising a mixture of materials covered by two or more of the groups C03C17/02, C03C17/06, C03C17/22 and C03C17/28
- C03C17/009—Mixtures of organic and inorganic materials, e.g. ormosils and ormocers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/44—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
- C03C2217/445—Organic continuous phases
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a processing method of a plate glass heat insulation coating, which comprises the following steps: a liquid sac (1) is arranged in the machine head liquid groove (2), and the external dimension of the liquid sac is matched with the dimension of the inner cavity of the machine head liquid groove; adding paint into a machine head liquid groove (2), and adding liquid into a liquid bag (1), wherein the density of the liquid is equal to or less than that of the paint, so that the liquid bag (1) floats above the paint in the machine head liquid groove (2); when in curtain coating, the coating material is driven to pass through the lower part of the liquid tank of the machine head, the coating material is sprayed down through the liquid tank (2) of the machine head under the double functions of dead weight and the pressure of the liquid bag, and a coating film is formed on the surface of the coating material. The liquid bag and the control equipment are added in the liquid tank of the machine head, so that the liquid level of the coating in the liquid tank of the machine head is reduced, the coating can be normally sprayed under the lower liquid level, the using amount of the coating is effectively saved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of plate glass, in particular to a processing method of a heat-insulating coating film of plate glass.
Background
The transparent glass heat insulating paint is one kind of functional building paint for glass to be sprayed directly onto the surface of glass to form one layer of film with the functions of transparency, heat insulation and ultraviolet ray isolation. The glass heat-insulating coating has high light transmittance, and does not influence the optical performance of glass; high heat insulation, effectively blocking solar energy; high ultraviolet isolation rate and can protect indoor articles.
The main components of the glass heat insulation coating are nano materials (such as tin antimony oxide ATO solution, indium tin oxide ITO solution, zinc aluminum oxide AZO solution, gallium zinc oxide GZO solution and nano tungsten oxide WO3 solution), various resins (such as acrylic resin, polyurethane resin, organic silicon resin, silicone-acrylate resin and the like) and other coating auxiliary agents (such as wetting agents, curing agents, leveling agents, defoaming agents, stabilizing agents, coupling agents and the like).
The kind and amount of the nano material are directly related to the performance and cost of the coating film, for example, ITO has better heat insulation performance, but the price of the product is higher.
At present, the plate glass film coating process mainly comprises a spray method, a curtain coating method, a roll coating method, a blade coating method and the like, and various methods have different requirements on the characteristics of the paint. Through a large number of experiments and data acquisition and analysis, it is considered that a high-quality film layer is obtained on the plate glass, a curtain coating mode should be adopted preferentially, a roller coating mode is adopted secondarily, and a knife coating mode is adopted again.
In the process of curtain coating, the coating is injected into a liquid tank of a machine head and reaches a certain liquid level, and the coating is sprayed down by a nozzle or a narrow slit by means of dead weight and is sprayed on a coated object driven by a conveying device in a curtain shape to form a uniform coating film. In the process of stabilizing the shower coating, the liquid storage tank must be kept with a certain liquid level of coating. And after the one-time spray coating is finished, if the production interval time is longer again, the coating in the liquid tank of the machine head cannot be reused. Therefore, a certain amount of paint is inevitably wasted after each shower coating. The waste amount of the paint is more in small-batch production, the glass heat insulation paint is high in price and the production cost is high.
In summary, the following problems exist in the prior art: and the normal curtain coating can be realized under a lower liquid level, so that the coating consumption is saved, the waste is avoided, and the cost is reduced.
Disclosure of Invention
The invention solves the technical problems of realizing normal curtain coating even under a lower liquid level, saving the consumption of the coating and avoiding waste.
In order to achieve the above object, the present invention provides a method for processing a heat-insulating coating film of a sheet glass, the method comprising the steps of:
a liquid sac is arranged in a liquid tank of the machine head;
adding paint into a machine head liquid groove, and adding liquid into the liquid sac, wherein the density of the liquid is equal to or less than that of the paint, so that the liquid sac floats above the paint in the machine head liquid groove;
when in curtain coating, the coated object is driven to pass through the lower part of the liquid tank of the machine head, the coated object is plate glass, and the coating is sprayed down through the liquid tank of the machine head under the dual actions of dead weight and the pressure of the liquid bag, so that a coating film is formed on the surface of the coated object.
Specifically, the first peristaltic pump is used for controlling the volume of the coating in the liquid tank of the machine head, and the second peristaltic pump is used for controlling the volume of the liquid in the liquid bag.
Specifically, the first peristaltic pump is connected with a paint container, and the second peristaltic pump is connected with a liquid container.
Specifically, after a coating film is formed on the surface of the object to be coated, the surplus paint flows back into the paint container.
Specifically, the pressure at the bottom of the liquid tank of the machine head is displayed during spraying.
Specifically, the material of the liquid bag adopts polyethylene PE or polyvinyl chloride PVC.
Specifically, the flow rates of the first peristaltic pump and the second peristaltic pump are made different.
Specifically, the flow rate of the first peristaltic pump is greater than that of the second peristaltic pump.
Specifically, the liquid is an aqueous coating. For example: natural water paint of natural substances or minerals (such as potassium silicate) or petrochemical water paint of artificial synthetic resin (such as acrylic resin).
Specifically, the pressure of the coating in the liquid tank of the machine head is kept within a set range through a first peristaltic pump; the pressure of the liquid in the liquid bladder is maintained within a predetermined range by a second peristaltic pump.
Further, the processing method of the plate glass heat insulation coating film further comprises the following steps:
after forming a film layer on a coated object (after leveling and defoaming), drying the coated object in a room temperature dust-free environment, and then placing the dried object in an oven at 80-120 ℃ for curing for 3-4 hours to form a hard film layer with the thickness of 7-12 mu m.
The beneficial effects of the invention are as follows: the paint is sprayed down by the self weight through a nozzle or a narrow slit, is sprayed on a coated object driven by a conveying device in a curtain shape to form a uniform coating film, and the excessive paint flows back to a container and is pumped to a liquid tank of a machine head for recycling. The liquid bag and the control equipment are added in the liquid tank of the machine head, so that the liquid level of the coating in the liquid tank of the machine head is reduced, the coating can be normally sprayed under the lower liquid level, the using amount of the coating, particularly the using amount of the nano material in the coating, is effectively saved, and the production cost is reduced. According to the invention, when the stop of the curtain coating operation is more than or equal to 24 hours, the loss of ATO powder raw materials is reduced from 1.5 ten thousand yuan to 0.6 ten thousand yuan.
Drawings
Fig. 1 is a schematic flow chart of a method for processing a heat-insulating coating film of sheet glass according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a processing apparatus employing a sheet glass heat-insulating coating film in a top view direction according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a side view of a processing apparatus using a heat-insulating coating film of sheet glass according to an embodiment of the present invention;
fig. 4 is a schematic view showing a first angle of a three-dimensional structure of a processing apparatus using a heat-insulating coating film of a sheet glass according to an embodiment of the present invention;
fig. 5 is a schematic view showing a second angle of a three-dimensional structure of a processing apparatus using a heat-insulating coating film for plate glass according to an embodiment of the present invention.
Reference numerals illustrate:
1. a fluid sac; 2. a machine head liquid tank; 3. a work table; 4. a first peristaltic pump; 5. a paint container; 6. a liquid container; 7. a second peristaltic pump.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the embodiment of the invention, as shown in fig. 1, a processing method of a plate glass heat insulation coating film is provided, wherein the processing method adopts a curtain coating process coating film and comprises the following steps:
a liquid sac 1 is arranged in a machine head liquid groove 2; the external dimension of the liquid sac 1 is matched with the dimension of the inner cavity of the liquid trough 2 of the machine head; adding a coating into a machine head liquid groove 2, and adding a liquid into a liquid bag 1, wherein the density of the liquid is equal to or less than that of the coating; the liquid bag 1 floats above the paint in the head liquid groove 2. The liquid added in the liquid sac 1 is water paint, and all paint which uses water as solvent or dispersion medium can be called water paint. Aqueous paints are divided into two main categories, depending on the type of binder in the paint: natural water-based paint of natural substances or minerals (such as potassium silicate) and petrochemical water-based paint of artificial synthetic resin (such as acrylic resin).
The liquid is water or industrial alcohol, and the alcohol content in industrial alcohol is generally 95% and 99% according to the kind of the paint. The process of spray coating is to wet, adhere and cover the surface of the coated object with excessive paint, and to level the paint by gravity and then to remove the residual material to form film. The viscosity of the coating is therefore an important parameter for the flow coating process. In order to further enhance the matching effect of the liquid in the liquid sac 1 and the paint in the machine head liquid tank 2, the viscosity of the paint in the machine head liquid tank 2 is generally 15-120 s (for example, the paint in the market is selected from brand: anda, model LND1, brand name: paint-4 cups, outflow time is 20-150 s), the liquid sac 1 is manufactured according to the inner cavity size of the machine head liquid tank 2, the material is selected from plastic (polyethylene PE or polyvinyl chloride PVC), and the liquid sac filled with the liquid floats above the paint and can float up and down freely along with the lifting of the liquid level. The liquid in the liquid bag is determined according to the type of paint, and the density of the liquid is slightly lower than that of the paint.
The machine head liquid tank 2 and the liquid bag 1 are respectively provided with peristaltic pumps with different flow rates. As shown in fig. 2, the flow rates of the first peristaltic pump 4 and the second peristaltic pump 7 are made different; the flow rate of the first peristaltic pump 4 is greater than that of the second peristaltic pump 7. The first peristaltic pump 4 is used for controlling the volume of the coating in the head liquid tank 2, and the second peristaltic pump 7 is used for controlling the volume of the liquid in the liquid bag 1;
peristaltic pumps can achieve high-precision continuous and quantitative delivery of the delivered liquid. As shown in fig. 5, the paint and the liquid are stored in the paint container 5 and the liquid container 6, respectively.
In the shower coating process, as shown in fig. 4, a conveying device on a workbench 3 drives a coated object to pass through from the lower part of a machine head liquid tank 2, so that a coating film is formed on the surface of the coated object. The narrow slit is set to be 0.5-1 mm, the paint is sprayed down through a nozzle or the narrow slit, the pressure of sprayed paint is 0.15-0.35 MPa, and the paint is sprayed on a coated object driven by a conveying device in a curtain shape to form a uniform coating film.
As shown in fig. 3, the first peristaltic pump 4 is connected to a paint container 5 and the second peristaltic pump 7 is connected to a liquid container 6. Peristaltic pumps can achieve high-precision continuous and quantitative delivery of the delivered liquid.
After the coating film is formed on the surface of the object to be coated, the surplus paint flows back into the paint container 5. And the liquid is pumped to a liquid tank of the machine head for recycling.
A pressure sensor is arranged at the bottom of the machine head liquid tank 2. And displaying the pressure in real time, and displaying the pressure at the bottom of the liquid tank of the machine head during spraying. The amount of paint and liquid is precisely controlled by peristaltic pumps (first peristaltic pump 4 and second peristaltic pump 7) to maintain the pressure within a set range.
The material of the liquid sac 1 adopts polyethylene PE or polyvinyl chloride PVC.
The first peristaltic pump 4, the paint container 5, the second peristaltic pump 7 and the liquid container 6 are all arranged on one side of the table 3.
The second peristaltic pump 7 and the liquid container 6 are both arranged on the front side of the handpiece fluid bath 2.
The first peristaltic pump 4 and the paint container 5 are both arranged at the rear side of the handpiece fluid bath 2. The layout is compact, and space is utilized.
The external dimension of the liquid sac 1 is matched with the internal dimension of the liquid bath 2 of the machine head. The liquid bag floats above the paint and can float up and down freely along with the lifting of the liquid level.
The pressure of the coating in the machine head liquid tank 2 is kept in a set range by a first peristaltic pump 4; the pressure of the liquid in the liquid bladder 1 is maintained within a predetermined range by a second peristaltic pump 7.
The paint is sprayed down by the self weight through a nozzle or a narrow slit, is sprayed on a coated object driven by a conveying device in a curtain shape to form a uniform coating film, and the excessive paint flows back to a container and is pumped to a liquid tank of a machine head for recycling. The liquid bag and the control equipment are added in the liquid tank of the machine head, so that the liquid level of the coating in the liquid tank of the machine head is reduced, the coating can be normally sprayed under the lower liquid level, the using amount of the coating is effectively saved, and the production cost is reduced.
Examples:
the invention provides a processing method of a plate glass heat-insulating coating, which is shown in figure 1, wherein a liquid sac and a control device are added in a liquid tank of a machine head, so that the liquid level of the coating in the liquid tank of the machine head is reduced, and the coating can be normally sprayed under a lower liquid level. The use amount of the paint is effectively saved, and the production cost is reduced. The invention can be used for newly producing curtain coating equipment or modifying original equipment. The principle of the process equipment is shown in figure 5.
(1) The liquid sac 1 is manufactured according to the size of the inner cavity of the machine head liquid groove 2, the machine head liquid groove 2 and the liquid sac 1 are cuboid open containers, the outer length and width of the liquid sac 2 are the same as those of the inner cavity of the machine head liquid groove 2, the height of the liquid sac 2 is lower than that of the machine head liquid groove 2, the liquid sac 2 can basically cover the top surface of the machine head liquid groove 2, the paint of the machine head liquid groove 2 is prevented from volatilizing, the liquid sac 2 has the function of a protective cover, the material is selected from plastics (polyethylene PE or polyvinyl chloride PVC), and the liquid sac filled with liquid floats above the paint and can float up and down freely along with the lifting of the liquid level. The liquid in the liquid bag is determined according to the kind of paint, and its density is slightly lower than that of paint. The glass heat insulating paint comprises nanometer materials (such as tin antimony oxide ATO solution, indium tin oxide ITO solution, zinc aluminum oxide AZO solution, gallium zinc oxide GZO solution, and nanometer tungsten oxide WO) 3 Solution) and various resins (e.g.: acrylic, polyurethane, silicone-acrylate, etc.) with other coating aids (e.g.: wetting agents, curing agents, leveling agents, defoamers, stabilizers, coupling agents, and the like). The liquid is water or industrial alcohol, and the ethanol content in the industrial alcohol is generally 95% and 99%.
The explanation is made by curtain coating glass with the width of 1.8 m:
size of the handpiece fluid bath 2: 180mm x 300mm x 400mm; size of the sac 2: 180mm by 300mm by 200mm;
calculated as the coating liquid level in the head liquid tank 2 of 25cm, the coating volume in the head liquid tank 2: 180mm x 300mm x 250 mm= 135000000mm 3 ＝0.135m 3 Weighing about 175Kg (1300 Kg/m) 3 (paint density) 0.135m 3 ＝175.5Kg)。
Described in terms of ATO coating:
the unit price of ATO powder is 1500 yuan/kg, and 1 kg of powder is about 35 kg of paint. 175Kg of paint requires 5Kg of powder, 7500 yuan (without other auxiliary raw materials).
The liquid bag 2 with the height of 20cm (the size is 1800 x 300 x 200 mm) is put in, so that the coating liquid level of the liquid groove 2 of the machine head is kept to be 10cm, and the coating volume is 1800 x 300 x 100= 135000000mm 3 ＝0.054m 3 (70.2 Kg), the cost of the paint in the head tank 2 is about 3000 yuan.
At least the same volume of paint as in the head tank 2 is present in the paint container 5 to maintain a stable level in the head tank 2. When the curtain coating operation is stopped for 24 hours, the coating in the machine head liquid tank 2 and the coating container 5 is invalid due to volatilization and oxidation of the coating auxiliary agent. Thus, when the production is discontinuous or the interruption time is long, the loss of raw material per time is about 1.5 ten thousand yuan, and the loss of raw material per time after the use of the liquid sac is about 0.6 ten thousand yuan. The loss is reduced by 0.9 ten thousand yuan/time. If the ITO coating with high price is used, the cost is saved obviously.
The reference prices of the partial raw materials (powders) are shown in the following table, table 1
TABLE 1 price of raw materials (powder)
| Sequence number | Product name | Unit (B) | Unit price (Yuan/kg) |
| 1 | ITO | KG | 8000.00 |
| 2 | ATO | KG | 1500.00 |
In addition, the head liquid tank 2 is of a non-closed structure, and the paint therein is easy to volatilize and oxidize. After the liquid bag is arranged, the liquid bag 1 is used as a floating protective cover, and the coating in the machine head liquid tank 2 is completely covered by the liquid bag 1 and is basically isolated from air, so that a better protective effect is achieved on the coating.
(2) The machine head liquid tank 2 and the liquid bag 1 are respectively provided with peristaltic pumps (a first peristaltic pump 4 and a second peristaltic pump 7) with different flow rates, the volume of the coating in the machine head liquid tank 2 is controlled through the first peristaltic pump 4, and the volume of the liquid in the liquid bag 1 is controlled through the second peristaltic pump 7; liquid is respectively injected into the liquid tank and the liquid bag, and the size of the liquid tank 2 of the machine head is taken as an example of curtain coating glass with the width of 1.8 m: 1800 x 300 x 400mm, capsule 2 size: 1800 x 300 x 200mm, with a height ratio of about 2:1. Peristaltic pumps can achieve high-precision continuous and quantitative delivery of the delivered liquid. The two liquids are respectively stored in a container, and the paint and the liquid are respectively stored in a paint container 5 and a liquid container 6, and the self-weight type curtain coating equipment adopts dead weight curtain coating, the paint is sprayed from a narrow slit (0.5-1 mm), the liquid level of a machine head liquid tank 2 is kept at about 25cm, and the pressure of curtain coating knife edge paint is 0.15-0.35 MPa.
(3) The pressure sensor is placed at the bottom of the liquid tank, the pressure is displayed in real time, and the pressure at the bottom of the liquid tank of the machine head is displayed during spraying. By peristaltic pump 4, peristaltic pump 7 precisely controls the amount of fluid to maintain the pressure within a set range. After the liquid bag is arranged, the height of the liquid level of the coating of the machine head liquid tank 2 is kept at 10cm, and 15-20cm high liquid (the specific gravity is less than or equal to the coating) is injected into the liquid bag 2, so that the pressure of the sprayed coating reaches 0.15-0.35 MPa (a pressure sensor is arranged at the bottom of the machine head liquid tank 2, and the pressure value is accurately controlled).
(4) When the device works, the conveyor on the workbench 3 drives the coated flat glass to uniformly pass through the coating curtain under the machine head, and a uniform coating film is formed on the upper surface of the flat glass. Excess paint flows back to the container 5 and is recycled by pumping to the head tank.
In the liquid tank 2 of the machine head, the pressure of the coating is 0.25MPa or 0.30MPa or 0.35MPa, and the viscosity of the coating is generally controlled within the range of 30-80 s; proper proportions of defoamer and flatting agent are added into the paint to keep the performance of the paint stable; the conveyer belt has a proper conveying speed of 70-90 m/min, and can obtain coating film with uniform film thickness, and the film thickness difference can be controlled within 1-2 mu m. The main technological parameters of the shower coating of the invention are shown in Table 2.
TABLE 2 Main Process parameters of flow coating
| Project | Process parameters |
| Coating viscosity (coating-4)/s | 35～60 |
| Coating temperature/°c | 20～25 |
| Shower coating time/min | 1～3 |
| Residence time/min | 8～30 |
| Dead weight type curtain coating knife edge gap width/mm | 0.5～1mm |
| pressure/MPa of curtain coating knife edge | 0.25～0.35 |
The liquid level of the coating in the machine head liquid tank is reduced by adding the liquid bag and the control equipment in the machine head liquid tank, so that the coating can be normally sprayed under the lower liquid level, the using amount of the coating is effectively saved, and the production cost is reduced.
The foregoing is illustrative of the present invention and is not to be construed as limiting the scope of the invention. In order that the components of the invention may be combined without conflict, any person skilled in the art shall make equivalent changes and modifications without departing from the spirit and principles of the invention.
Claims (10)
1. The processing method of the heat-insulating coating film of the sheet glass is characterized by adopting a curtain coating process coating film, and comprises the following steps of:
a liquid sac (1) is arranged in a machine head liquid groove (2); the machine head liquid tank (2) is of a non-closed structure; the liquid tank and the liquid bag of the machine head are cuboid open containers, the liquid bag has the function of a protective cover, and the materials are plastics;
adding paint into a machine head liquid groove (2), and adding liquid into the liquid bag (1), wherein the density of the liquid is equal to or less than that of the paint, so that the liquid bag (1) floats above the paint in the machine head liquid groove (2);
when in spray coating, a coated object is driven to pass through the lower part of a machine head liquid groove (2), the coating is sprayed down through the machine head liquid groove (2) under the dual actions of dead weight and the pressure of the liquid bag (1), and a coating film is formed on the surface of the coated object;
the paint is sprayed down by a nozzle or a narrow slit by means of dead weight and is sprayed on a coated object driven by a conveying device in a curtain shape to form a uniform coating film;
the conveying device on the workbench (3) drives the coated object to pass through the lower part of the machine head liquid tank, and a coating film is formed on the surface of the coated object.
2. A method for processing a heat-insulating coating film of plate glass according to claim 1, characterized in that the volume of the coating in the head liquid tank (2) is controlled by a first peristaltic pump (4), and the volume of the liquid in the liquid bag (1) is controlled by a second peristaltic pump (7).
3. The method for processing the heat-insulating coating film of the flat glass according to claim 2, wherein the first peristaltic pump (4) is connected with a coating container (5), and the second peristaltic pump (7) is connected with a liquid container (6).
4. A method of processing a heat-insulating coating film for a sheet glass according to claim 1, wherein after the coating film is formed on the surface of the object to be coated, the surplus coating material flows back into the coating material container (5).
5. The method for processing a heat-insulating coating film for a sheet glass according to claim 1, wherein the pressure at the bottom of the head tank (2) is displayed at the time of spraying.
6. The method for processing the sheet glass heat-insulating coating film according to claim 1, wherein the material of the liquid bag (1) is polyethylene PE or polyvinyl chloride PVC.
7. The method for processing a heat-insulating coating film for a sheet glass according to claim 1, wherein the pressure of the coating material is 0.15 to 0.35MPa.
8. A method of processing a sheet glass insulating film according to claim 3, characterized in that the flow rate of the first peristaltic pump (4) is greater than that of the second peristaltic pump (7).
9. The method for processing a heat-insulating coating film for a sheet glass according to claim 1, wherein the liquid is an aqueous paint.
10. The method for processing a heat-insulating coating film for a sheet glass according to claim 1, further comprising:
and (3) drying the coated object in a dust-free environment at room temperature after forming a film layer, and then placing the film layer into an oven at 80-120 ℃ for curing for 3-4 hours to form a hard film layer with the thickness of 7-12 mu m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210515749.4A CN114853351B (en) | 2022-05-11 | 2022-05-11 | Processing method of heat-insulating coating film of plate glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210515749.4A CN114853351B (en) | 2022-05-11 | 2022-05-11 | Processing method of heat-insulating coating film of plate glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114853351A CN114853351A (en) | 2022-08-05 |
| CN114853351B true CN114853351B (en) | 2023-10-13 |
Family
ID=82638256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210515749.4A Active CN114853351B (en) | 2022-05-11 | 2022-05-11 | Processing method of heat-insulating coating film of plate glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114853351B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302206A (en) * | 1989-04-05 | 1994-04-12 | Fuji Photo Film Co., Ltd. | Extrusion-type application device |
| JP2001087699A (en) * | 1999-09-27 | 2001-04-03 | Takubo Engineering Kk | Paint supply system for coating apparatus |
| JP2004237234A (en) * | 2003-02-07 | 2004-08-26 | Mitsubishi Materials Corp | Coating tool and coating device |
| JP2004321913A (en) * | 2003-04-23 | 2004-11-18 | Mitsubishi Materials Corp | Coating system |
| JP2004337812A (en) * | 2003-05-19 | 2004-12-02 | Sekisui Chem Co Ltd | Extrusion coating head |
| JP2005087810A (en) * | 2003-09-12 | 2005-04-07 | Trinity Ind Corp | Coater |
| JP2006130455A (en) * | 2004-11-08 | 2006-05-25 | Sharp Corp | Liquid feeding device |
| CN101346222A (en) * | 2005-12-21 | 2009-01-14 | 埃西勒国际通用光学公司 | Method of coating an ophthalmic lens using stamp coating |
| CN101547742A (en) * | 2006-12-04 | 2009-09-30 | Abb株式会社 | Paint application cartridge |
| CN102442783A (en) * | 2010-10-09 | 2012-05-09 | 北京建筑技术发展有限责任公司 | Process and device for coating film on glass |
| CN203002568U (en) * | 2013-01-22 | 2013-06-19 | 惠州市长胜实业有限公司 | Curtain coater |
| CN103803810A (en) * | 2014-02-25 | 2014-05-21 | 上海岑兴实业有限公司 | Nano anti-ultraviolet heat insulation coated glass and production method thereof |
| CN209238221U (en) * | 2018-12-10 | 2019-08-13 | 江苏纵湖涂装设备产业研究院有限公司 | A kind of spraying equipment of observable material-storing box inside courtyard content |
| JP2020189277A (en) * | 2019-05-23 | 2020-11-26 | 株式会社豊田自動織機 | Die head |
| CN112707650A (en) * | 2021-01-28 | 2021-04-27 | 深圳市雄华光学有限公司 | Production process of high-light-transmittance glass by utilizing AR film |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003215357A1 (en) * | 2002-02-22 | 2003-09-09 | Terrasimco Inc. | Bladder-based apparatus and method for dispensing coatings |
| US20050120947A1 (en) * | 2003-12-09 | 2005-06-09 | Konica Minolta Photo Imaging, Inc. | Coating apparatus and coating method |
| US20090026639A1 (en) * | 2005-12-21 | 2009-01-29 | Xu Chen | Method of coating an ophthalmic lens using a stamp coating |
-
2022
- 2022-05-11 CN CN202210515749.4A patent/CN114853351B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302206A (en) * | 1989-04-05 | 1994-04-12 | Fuji Photo Film Co., Ltd. | Extrusion-type application device |
| JP2001087699A (en) * | 1999-09-27 | 2001-04-03 | Takubo Engineering Kk | Paint supply system for coating apparatus |
| JP2004237234A (en) * | 2003-02-07 | 2004-08-26 | Mitsubishi Materials Corp | Coating tool and coating device |
| JP2004321913A (en) * | 2003-04-23 | 2004-11-18 | Mitsubishi Materials Corp | Coating system |
| JP2004337812A (en) * | 2003-05-19 | 2004-12-02 | Sekisui Chem Co Ltd | Extrusion coating head |
| JP2005087810A (en) * | 2003-09-12 | 2005-04-07 | Trinity Ind Corp | Coater |
| JP2006130455A (en) * | 2004-11-08 | 2006-05-25 | Sharp Corp | Liquid feeding device |
| CN101346222A (en) * | 2005-12-21 | 2009-01-14 | 埃西勒国际通用光学公司 | Method of coating an ophthalmic lens using stamp coating |
| CN101547742A (en) * | 2006-12-04 | 2009-09-30 | Abb株式会社 | Paint application cartridge |
| CN102442783A (en) * | 2010-10-09 | 2012-05-09 | 北京建筑技术发展有限责任公司 | Process and device for coating film on glass |
| CN203002568U (en) * | 2013-01-22 | 2013-06-19 | 惠州市长胜实业有限公司 | Curtain coater |
| CN103803810A (en) * | 2014-02-25 | 2014-05-21 | 上海岑兴实业有限公司 | Nano anti-ultraviolet heat insulation coated glass and production method thereof |
| CN209238221U (en) * | 2018-12-10 | 2019-08-13 | 江苏纵湖涂装设备产业研究院有限公司 | A kind of spraying equipment of observable material-storing box inside courtyard content |
| JP2020189277A (en) * | 2019-05-23 | 2020-11-26 | 株式会社豊田自動織機 | Die head |
| CN112707650A (en) * | 2021-01-28 | 2021-04-27 | 深圳市雄华光学有限公司 | Production process of high-light-transmittance glass by utilizing AR film |
Non-Patent Citations (1)
| Title |
|---|
| 孙德彬.《家具表面装饰工艺技术》.中国轻工业出版社,2009,第209-210页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114853351A (en) | 2022-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104441709B (en) | Preparation method of polyester film for coating tag | |
| CN203959477U (en) | A kind of film transmits glue spreading apparatus | |
| CN203002568U (en) | Curtain coater | |
| CN114853351B (en) | Processing method of heat-insulating coating film of plate glass | |
| CN104437975A (en) | Coating apparatus and coating method | |
| CN102847650B (en) | Edge banding hot melt adhesive back coating process | |
| CN204037000U (en) | A kind of integrated heat insulating decorating plate complex laminating machine | |
| CN204544613U (en) | A kind of two scraper blooming gluing assembly | |
| CN218213899U (en) | Controller for height of liquid level of shower coating | |
| CN204955629U (en) | Prevent static complex film preparation machine | |
| CN204544622U (en) | A kind of gluing assembly | |
| CN203417786U (en) | Spraying device | |
| CN202570539U (en) | Hot melt adhesive back coating device for edge banding | |
| CN211707236U (en) | Coating preheating traction device | |
| CN204724421U (en) | Inorganic agent recycle device | |
| CN204544597U (en) | A kind of blooming gluing assembly | |
| CN206433742U (en) | Thin pancake printer and thin pancake print system | |
| CN218742805U (en) | Flexible film coating device capable of removing scum | |
| CN214426365U (en) | Improve glued membrane preparation equipment of optical glued membrane shrinkage factor | |
| CN213079005U (en) | Constant-current automatic control glue supply device | |
| CN218282364U (en) | Film coating device | |
| CN206082995U (en) | Coating apparatus | |
| JP2001321709A (en) | Apparatus and method for coating | |
| CN204892243U (en) | A coating unit for nanometer coating | |
| CN221413552U (en) | Glue spreader of air floatation equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230914 Address after: 276000 middle section of Shuang Ling Road, Linyi, Shandong Applicant after: LINYI University Applicant after: Linyi Shengchen Precision Technology Co.,Ltd. Address before: 276000 middle section of Shuang Ling Road, Linyi, Shandong Applicant before: LINYI University |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |