Glass curtain wall backing plate connecting and spraying construction method

Abstract

The invention discloses a glass curtain wall backing plate connecting and spraying construction method, and particularly relates to the technical field of glass curtain wall construction, the construction method comprises the following steps: 1, construction preparation; step 2, processing and spraying a backing plate; thirdly, a U-shaped groove rail is installed; step 4, mounting a backing plate; and step 5, checking and accepting. According to the invention, the galvanized steel sheet is used as the backing plate, and the surface of the backing plate is sprayed with the dark paint by adopting a fluorocarbon spraying process, so that the long-term stability of the color of the backing plate is ensured, and the color of the surface of the backing plate cannot be obviously changed even under long-time sunlight irradiation, thereby permanently keeping the consistency of the appearance color of the glass curtain wall and prolonging the service life of the glass curtain wall. According to the technical scheme, the material loss rate is reduced, a more environment-friendly construction mode is achieved, the installation process of the backing plate is more convenient and fast, the backing plate can be conveniently inserted into the U-shaped groove rails fixed to the surfaces of the main keels on the two sides, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass curtain wall construction, and more specifically to a glass curtain wall backing plate connection and spraying construction method. Background Art

[0002] Glass curtain wall is a kind of building external protective structure or decorative structure that has a certain displacement capacity relative to the main structure and does not share the effects on the main structure. It has become a common exterior wall decoration method in modern buildings due to its unique beauty and novelty. Glass curtain wall mainly has two types: single-layer and double-layer glass, which can provide good lighting and vision, while enhancing the modern sense of the building.

[0003] In the construction of glass curtain walls, due to the existence of main concrete or steel structural beams and core tube concrete walls inside the building, these structures often destroy the overall aesthetics of the glass curtain wall. Therefore, in order to ensure the safety of the building structure while achieving beautiful external effects, it is usually necessary to add metal plates, namely backing plates, behind the glass curtain walls at these locations. The main function of the backing plates is to shield the internal main structure and ensure that the glass curtain wall presents a neat and unified appearance when viewed from the outside.

[0004] The traditional way of installing backing plates is to fix the backing plates or steel plates directly to the beams and columns by screws. During the installation of the glass curtain wall, in order to avoid the traditional design of calcium silicate board backing plates, only dark paint is sprayed on the surface of the backing plates. After long-term sunlight exposure, the paint on the surface of the backing plates will gradually fade, which will have a certain impact on the overall appearance of the glass curtain wall. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a glass curtain wall backing plate connection and spraying construction method.

[0006] To achieve the above object, the present invention provides the following technical solution: a method for connecting and spraying a backing plate of a glass curtain wall, wherein the steps of the construction method are as follows: Step 1: Construction preparation: Prepare the required materials, including 1.5mm thick galvanized steel plate, U-shaped groove rail, self-drilling screws and dark paint; Step 2: Backing plate processing and spraying: Make the backing plate of the required size, and use fluorocarbon spraying process to spray dark paint on the surface of the galvanized steel plate that contacts the curtain wall glass to ensure that the paint is uniform and of good quality; Step 3: Install the U-shaped groove track: Before installing the horizontal keel of the curtain wall, divide the U-shaped groove track into two parts, cut it according to the height of the backing plate, and use self-drilling screws to fix the cut U-shaped groove track on both sides of the main keel of the glass curtain wall, with the socket facing outward and the fixing end of the self-drilling screw facing inward; Step 4: Backing plate installation: After the installation of the lower horizontal keel of the backing plate is completed, insert the backing plate along the socket on the upper part of the U-shaped groove track to ensure that the backing plate is firmly inserted and will not shake or fall off. Then fix the upper horizontal keel of the backing plate to ensure the stability of the overall structure. Step 5: Inspection and acceptance.

[0007] As a further improvement of the technical solution of the present invention, in step 1, during the construction preparation process, it is also necessary to measure and confirm the layout dimensions of the vertical and horizontal keels according to the design requirements of the glass curtain wall and the actual situation on site.

[0008] As a further improvement of the technical solution of the present invention, the processing of the backing plate in step 2 requires that the 1.5 mm thick galvanized steel plate be centrally processed in the factory according to the confirmed keel layout size, and the backing plate of the required size be produced according to demand.

[0009] 4. The method for connecting and spraying the backing plate of a glass curtain wall according to claim 1 is characterized in that the process steps of spraying the dark paint by using the fluorocarbon spraying process in step 2 are as follows: S1. Degreasing treatment: clean the surface oil and dust impurities of galvanized steel plate; S2, water washing: rinse the degreased galvanized steel sheet with clean water; S3, Alkaline cleaning: Use alkaline cleaning agent to degrease the galvanized steel sheet to remove grease on the metal surface; S4, washing again: washing away the residue of the alkaline cleaning agent; S5, pickling and re-washing: the galvanized steel sheet is pickled with an acidic cleaning agent and then washed again to remove the residue of the acidic cleaning agent; S6, chroming and water washing: chroming treatment is performed to form a chroming film on the metal surface to increase the bonding strength and anti-oxidation ability of the coating and the metal surface, and then water washing is continued; S7, spraying: spray a layer of dark paint on the metal surface to form a primer to improve the coating's anti-penetration ability, enhance the protection of the metal, and stabilize the metal surface layer. After the primer is dry, continue to spray the dark paint to form a topcoat. The topcoat is the key layer to provide decorative color and protect the metal surface from erosion by the external environment; S8. Baking and curing: Place the sprayed galvanized steel sheet into a drying oven for curing.

[0010] As a further improvement of the technical solution of the present invention, the curing temperature in S8 is between 180°C and 250°C, the curing time is 15-30 minutes, and the cured coating has excellent weather resistance and corrosion resistance.

[0011] As a further improvement of the technical solution of the present invention, in step three, before installing the U-shaped groove track, it is necessary to first use a rope dipped in carbon ink to set the horizontal keel elevation line on the keel. The pre-set horizontal keel elevation line is used as a reference for installing the U-shaped groove track.

[0012] As a further improvement of the technical solution of the present invention, the inspection and acceptance in step five include checking whether the backing plate is installed firmly, whether the paint is uniform and flawless, whether the connection between the U-groove track and the main keel of the curtain wall is tight, whether the self-drilling screws are firm, and inspecting the appearance and structural stability of the glass curtain wall to ensure compliance with design requirements and construction specifications.

[0013] Beneficial effects of the present invention: 1. By using galvanized steel plate as the backing plate and spraying dark paint on its surface with fluorocarbon spraying technology, the long-term stability of the backing plate color is ensured. Even under long-term sunlight exposure, the surface color of the backing plate will not change significantly, thus permanently maintaining the consistency of the appearance color of the glass curtain wall; 2. Since the size of galvanized steel plates can be processed centrally according to the specific size arranged at the construction site, it effectively meets the application in different glass curtain walls, significantly reduces the material loss rate, and realizes a more environmentally friendly construction method; 3. The U-shaped groove track is connected to the main keel of the curtain wall by drilling screws, making the installation process of the backing plate more convenient. The backing plate can be easily inserted into the U-shaped groove track fixed on the surface of the main keel on both sides, which improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a flow chart of the construction method of the present invention.

[0015] Figure 2 This is a schematic diagram of the U-shaped groove track structure before cutting in the present invention.

[0016] Figure 3 It is a schematic diagram of the U-shaped groove track structure after cutting in the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] As attached Figure 1-3 The glass curtain wall backing plate connection and spraying construction method shown in the figure has the following construction steps: Step 1: Construction preparation: Prepare the required materials, including 1.5mm thick galvanized steel plate, U-shaped groove rail, self-drilling screws and dark paint; Step 2: Backing plate processing and spraying: Make the backing plate of the required size, and use fluorocarbon spraying process to spray dark paint on the surface of the galvanized steel plate that contacts the curtain wall glass to ensure that the paint is uniform and of good quality; Step 3: Install the U-shaped groove track: Before installing the horizontal keel of the curtain wall, divide the U-shaped groove track into two parts, cut it according to the height of the backing plate, and use self-drilling screws to fix the cut U-shaped groove track on both sides of the main keel of the glass curtain wall, with the socket facing outward and the fixing end of the self-drilling screw facing inward; Step 4: Backing plate installation: After the installation of the lower horizontal keel of the backing plate is completed, insert the backing plate along the socket on the upper part of the U-shaped groove track to ensure that the backing plate is firmly inserted and will not shake or fall off. Then fix the upper horizontal keel of the backing plate to ensure the stability of the overall structure. Step 5: Inspection and acceptance.

[0019] Preferably, in step one, during the construction preparation process, it is also necessary to measure and confirm the layout dimensions of the vertical and horizontal keels according to the design requirements of the glass curtain wall and the actual situation on site.

[0020] Preferably, in step 2, the backing plate is processed by centrally processing the 1.5 mm thick galvanized steel plate in accordance with the confirmed keel layout size, and the backing plate of the required size is manufactured according to the demand.

[0021] Preferably, the process steps of spraying dark paint using fluorocarbon spraying process in step 2 are as follows: S1. Degreasing treatment: clean the surface oil and dust impurities of galvanized steel plate; S2, water washing: rinse the degreased galvanized steel sheet with clean water; S3, Alkaline cleaning: Use alkaline cleaning agent to degrease the galvanized steel sheet to remove grease on the metal surface; S4, washing again: washing away the residue of the alkaline cleaning agent; S5, pickling and re-washing: the galvanized steel sheet is pickled with an acidic cleaning agent and then washed again to remove the residue of the acidic cleaning agent; S6, chroming and water washing: chroming treatment is performed to form a chroming film on the metal surface to increase the bonding strength and anti-oxidation ability of the coating and the metal surface, and then water washing is continued; S7, spraying: spray a layer of dark paint on the metal surface to form a primer to improve the coating's anti-penetration ability, enhance the protection of the metal, and stabilize the metal surface layer. After the primer is dry, continue to spray the dark paint to form a topcoat. The topcoat is the key layer to provide decorative color and protect the metal surface from erosion by the external environment; S8. Baking and curing: Place the sprayed galvanized steel sheet into a drying oven for curing.

[0022] Preferably, the curing temperature in S8 is between 180°C and 250°C, and the curing time is 15-30 minutes. The cured coating has excellent weather resistance and corrosion resistance.

[0023] Preferably, in step three, before installing the U-shaped groove track, a horizontal keel elevation line is first set on the keel using a rope dipped in carbon ink. The pre-set horizontal keel elevation line is used as a reference for installing the U-shaped groove track.

[0024] Preferably, the inspection and acceptance in step five include checking whether the backing plate is installed firmly, whether the paint is evenly distributed and free of defects, whether the connection between the U-groove track and the main keel of the curtain wall is tight, whether the self-drilling screws are firm, and inspecting the appearance and structural stability of the glass curtain wall to ensure that it meets the design requirements and construction specifications.

[0025] Working principle: The present invention designs a method for connecting and spraying the backing plate of a glass curtain wall. First, according to the design requirements of the glass curtain wall and the actual situation on site, the layout dimensions of the vertical and horizontal keels are measured and confirmed, and the required materials are prepared, including 1.5mm thick galvanized steel plates, U-shaped groove rails, self-drilling screws and dark paint; Secondly, backing plate processing and spraying: 1.5mm thick galvanized steel plate is processed in a factory according to the confirmed keel layout size to produce the backing plate of the required size. The surface of the galvanized steel plate in contact with the curtain wall glass is sprayed with dark paint using fluorocarbon spraying technology to ensure that the paint is uniform and of good quality; Then, install the U-shaped groove track: before installing the U-shaped groove track, you need to use a rope dipped in carbon ink to set the horizontal keel elevation line on the keel. The pre-set horizontal keel elevation line is used as a reference for installing the U-shaped groove track. Then, before installing the curtain wall horizontal keel, divide the U-shaped groove track into two parts and cut it according to the height of the backing plate. Use self-drilling screws to fix the cut U-shaped groove track on both sides of the main keel of the glass curtain wall, with the socket facing outward and the fixing end of the self-drilling screw facing inward. Furthermore, after the installation of the lower transverse keel of the backing plate is completed, the backing plate is inserted along the socket on the upper part of the U-shaped groove track to ensure that the backing plate is firmly inserted and will not shake or fall off, and then the upper transverse keel of the backing plate is fixed to ensure the stability of the overall structure; Finally, check whether the backing plate is installed firmly, whether the paint is even and without defects, whether the connection between the U-groove track and the main keel of the curtain wall is tight, whether the self-drilling screws are firm, and inspect the appearance and structural stability of the glass curtain wall to ensure that it meets the design requirements and construction specifications.

[0026] Among them, the process steps of spraying dark paint by fluorocarbon spraying process are as follows: S1. Degreasing treatment: clean the surface oil and dust impurities of galvanized steel plate; S2, water washing: rinse the degreased galvanized steel sheet with clean water; S3, Alkaline cleaning: Use alkaline cleaning agent to degrease the galvanized steel sheet to remove grease on the metal surface; S4, washing again: washing away the residue of the alkaline cleaning agent; S5, pickling and re-washing: the galvanized steel sheet is pickled with an acidic cleaning agent and then washed again to remove the residue of the acidic cleaning agent; S6, chroming and water washing: chroming treatment is performed to form a chroming film on the metal surface to increase the bonding strength and anti-oxidation ability of the coating and the metal surface, and then water washing is continued; S7, spraying: spray a layer of dark paint on the metal surface to form a primer to improve the coating's anti-penetration ability, enhance the protection of the metal, and stabilize the metal surface layer. After the primer is dry, continue to spray the dark paint to form a topcoat. The topcoat is the key layer to provide decorative color and protect the metal surface from erosion by the external environment; S8. Baking and curing: Place the sprayed galvanized steel sheet in a drying oven for curing. The curing temperature is between 180℃-250℃ and the curing time is 15-30min. The cured coating has excellent weather resistance and corrosion resistance.

[0027] In summary, the present invention ensures the long-term stability of the color of the backing plate by using galvanized steel plate as the backing plate and spraying dark paint on its surface through fluorocarbon spraying process. Even under long-term sunlight exposure, the surface color of the backing plate will not change significantly, thereby permanently maintaining the consistency of the appearance color of the glass curtain wall. Moreover, since the size of the galvanized steel plate can be centrally processed according to the specific size arranged at the construction site, it effectively meets the application in different glass curtain walls, significantly reduces the material loss rate, and realizes a more environmentally friendly construction method. At the same time, the U-shaped groove track is connected to the main keel of the curtain wall by drilling screws, making the installation process of the backing plate more convenient, and the backing plate can be conveniently inserted into the U-shaped groove track fixed on the surface of the main keels on both sides, thereby improving construction efficiency.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for connecting and spraying a backing plate of a glass curtain wall, characterized in that: The construction method steps are as follows: Step 1: Construction preparation: Prepare the required materials, including 1.5mm thick galvanized steel plate, U-shaped groove rail, self-drilling screws and dark paint; Step 2: Backing plate processing and spraying: Make the backing plate of the required size, and spray dark paint on the surface of the galvanized steel plate that contacts the curtain wall glass using fluorocarbon spraying technology; Step 3: Install the U-shaped groove track: Before installing the horizontal keel of the curtain wall, divide the U-shaped groove track into two parts, cut it according to the height of the backing plate, and use self-drilling screws to fix the cut U-shaped groove track on both sides of the main keel of the glass curtain wall, with the socket facing outward and the fixing end of the self-drilling screw facing inward; Step 4: Backing plate installation: After the installation of the lower horizontal keel of the backing plate is completed, the backing plate is inserted along the socket on the upper part of the U-shaped groove track, and then the upper horizontal keel of the backing plate is fixed; Step 5: Inspection and acceptance.

2. The glass curtain wall backing plate connection and spraying construction method according to claim 1 is characterized in that: In the step 1, during the construction preparation process, it is also necessary to measure and confirm the layout dimensions of the vertical and horizontal keels according to the design requirements of the glass curtain wall and the actual situation on site.

3. The glass curtain wall backing plate connection and spraying construction method according to claim 1 is characterized in that: In the step 2, the backing plate is processed by centrally processing the 1.5 mm thick galvanized steel plate in accordance with the confirmed keel layout size, and the backing plate of the required size is produced according to the demand.

4. The glass curtain wall backing plate connection and spraying construction method according to claim 1 is characterized in that: The process steps of spraying dark paint using fluorocarbon spraying process in step 2 are as follows: S1. Degreasing treatment: clean the surface oil and dust impurities of galvanized steel plate; S2, water washing: rinse the degreased galvanized steel sheet with clean water; S3, Alkaline cleaning: Use alkaline cleaning agent to degrease the galvanized steel sheet to remove grease on the metal surface; S4, washing again: washing away the residue of the alkaline cleaning agent; S5, pickling and re-washing: the galvanized steel sheet is pickled with an acidic cleaning agent and then washed again to remove the residue of the acidic cleaning agent; S6, chroming and water washing: chroming treatment is performed to form a chroming film on the metal surface, and then water washing is continued; S7, spraying: spray a layer of dark paint on the metal surface to form a primer, and after the primer is dry, continue to spray the dark paint to form a topcoat; S8. Baking and curing: Place the sprayed galvanized steel sheet into a drying oven for curing.

5. The glass curtain wall backing plate connection and spraying construction method according to claim 4 is characterized in that: In the S8, the curing temperature is between 180° C. and 250° C., and the curing time is 15 to 30 minutes.

6. The glass curtain wall backing plate connection and spraying construction method according to claim 1 is characterized in that: In step three, before installing the U-shaped groove track, it is necessary to first use a rope dipped in carbon ink to set the horizontal keel elevation line on the keel. The pre-set horizontal keel elevation line is used as a reference for installing the U-shaped groove track.

7. The glass curtain wall backing plate connection and spraying construction method according to claim 1 is characterized in that: The inspection and acceptance in step five include checking whether the backing plate is installed firmly, whether the paint is evenly distributed and has no defects, whether the connection between the U-groove track and the main keel of the curtain wall is tight, whether the self-drilling screws are firm, and inspecting the appearance and structural stability of the glass curtain wall.

Images