A clad sheet with a sealed edge and a clad sheet assembly

Abstract

The application relates to a clad plate with an edge seal and a clad plate assembly, wherein the bottom surface of the upper surface layer is provided with a first adhesive layer; the upper surface of the metal substrate layer is connected with the first adhesive layer; the top surface of the lower surface layer is provided with a second adhesive layer, and the second adhesive layer is connected with the lower surface of the metal substrate layer; at least on the opposite two side edges of the metal substrate layer, the corresponding side edges of the upper surface layer and the lower surface layer are occluded and wrapped to form an edge seal, the above arrangement realizes the sealing treatment of the two side edges of the plate and forms effective and durable sealing protection and a continuous and complete physical isolation barrier, realizes the all-around anticorrosion sealing effect of the longitudinal two side edges and the surface coating of the plate. The structural design not only effectively isolates moisture, corrosion gas and corrosion medium penetration, but also enhances the mechanical strength of the edge wrapping structure through stress dispersion design of the edge seal, so that the plate can still maintain excellent sealing integrity and corrosion resistance and protection performance under long-term sunshine and rain, temperature difference deformation and other working conditions.

Description

Technical Field

[0001] This application relates to the field of anti-corrosion roofing technology, and in particular to a composite board with edge sealing and a composite board assembly. Background Technology

[0002] Currently, color steel plates are an economical and practical building and decorative panel. There are many types, but they are not complicated. The base material is mostly cold-rolled steel plate or hot-dip galvanized base material, and the coating is mostly polyester, silicone-modified polyester, polyvinylidene fluoride, etc. During long-term use, the surface coating is affected by external forces such as light, temperature difference, humidity difference, water accumulation, acid corrosion, pollutants, airflow, hail, etc., which often cause surface cracking, fading, corrosion, etc. This not only affects the overall appearance of the building, but also causes incalculable damage to the building structure and environmental pollution.

[0003] In marine environments, the combined effects of complex environmental characteristics and climatic factors such as sunlight, temperature, humidity, salt spray, precipitation, and wind on steel structures greatly exacerbate corrosion, leading to serious economic losses and safety hazards.

[0004] When enterprises that produce corrosive substances, such as chemical plants, salt chemical plants, pickling plants, smelting plants, paper mills, printing and dyeing plants, use color steel plates as wall and roof panels, it is necessary to ensure their functionality. Sometimes they need to be replaced once a year, and even in enterprises with strong corrosiveness, they need to be replaced every few months. Otherwise, normal production cannot be maintained and personal safety cannot be guaranteed.

[0005] In related technologies, multi-layer composite panels are used to solve the above problems, which have the effects of heat insulation, corrosion resistance and noise reduction. However, the following problems still exist: The outer edges of the boards are exposed, posing a risk of corrosion. Anti-corrosion nails are used to connect the two boards, but the nail holes are not self-healing, making them prone to leakage and corrosion. Utility Model Content

[0006] This application provides a laminated board with edge sealing and a laminated board assembly to solve the problem in related technologies where the outer edge of the board is exposed, posing a risk of corrosion.

[0007] In a first aspect, a laminate with edge sealing is provided, comprising: The upper surface layer has a first adhesive layer on its bottom surface; A metal substrate layer, the upper surface of which is connected to the first adhesive layer; The lower surface layer has a second adhesive layer on its top surface, and the second adhesive layer is connected to the lower surface of the metal substrate layer; At least on the opposite sides of the metal substrate layer, the corresponding sides of the upper and lower surface layers interlock and wrap to form a sealing edge.

[0008] In some embodiments, the upper and lower surfaces are made of the same material and have the same dimensions; the upper surface includes any one of colored aluminum foil, colored stainless steel foil, and colored copper foil coated with colored paint. Both the first adhesive layer and the second adhesive layer comprise polymers and are connected to the corresponding upper surface layer and the second adhesive layer by a hot extrusion coating method; the polymers include modified rubber, modified asphalt, and modified butyl rubber.

[0009] In some embodiments, the thickness of the upper surface layer is 0.1~0.22mm; the thickness of the first adhesive layer and the second adhesive layer is 0.3~0.8mm; the thickness of the lower surface layer is 0.1~0.22mm; and the thickness of the metal substrate layer is 0.4~1.0mm.

[0010] In some embodiments, the projection of the upper surface layer onto the lower surface layer partially overlaps with the lower surface layer; On opposite sides of the metal substrate layer, the upper surface layer is bent to cover one side of the metal substrate layer, and the connection point with the lower surface layer is located below the metal substrate layer; the lower surface layer is bent to cover the other side of the metal substrate layer, and the connection point with the upper surface layer is located above the metal substrate layer.

[0011] In some embodiments, at the junction of the upper and lower surfaces, the upper and lower surfaces are aligned or overlapped.

[0012] In some embodiments, the upper surface layer includes any one of colored aluminum foil, colored stainless steel foil, and colored copper foil coated with colored paint; The first adhesive layer comprises a polymer and is connected to the corresponding upper surface layer by a hot extrusion coating method; the polymer includes modified rubber, modified asphalt, and modified butyl rubber; The second adhesive layer includes a hot melt adhesive film; The lower surface layer includes a high weather-resistant resin film; the high weather-resistant resin film is made of one or more of PE, TPO, PVC, ASA, PVDF, PET, and ETFE.

[0013] In some embodiments, the thickness of the upper surface layer is 0.1~0.22mm; the thickness of the first adhesive layer is 0.3~0.8mm; the thickness of the second adhesive layer is 0.03-0.1mm; the thickness of the lower surface layer is 0.08~0.2mm; and the thickness of the metal substrate layer is 0.4~1.0mm.

[0014] In some embodiments, the area of ​​the upper surface layer is larger than the area of ​​the lower surface layer; On the two opposite sides of the metal substrate layer, the upper surface layer is bent to cover the two sides of the metal substrate layer, and the connection with the lower surface layer is located below the metal substrate layer; at the connection between the upper surface layer and the lower surface layer, the upper surface layer and the lower surface layer are arranged to overlap vertically. or, The area of ​​the upper surface layer is smaller than the area of ​​the lower surface layer; on the two opposite sides of the metal substrate layer, the lower surface layer is bent to cover the two sides of the metal substrate layer, and the connection with the upper surface layer is located above the metal substrate layer.

[0015] In some embodiments, the metal substrate layer is made of aluminum-zinc plate, aluminum-magnesium-manganese plate or stainless steel plate.

[0016] Secondly, a composite panel assembly is provided, comprising: Multiple laminated panels with edge sealing; the laminated panels with edge sealing are connected by connecting reinforcement components; The connecting reinforcement includes a saddle pad and a self-drilling nail; the inner wall of the saddle pad is used for contact with the upper surface layer of the composite board at the crest; the inner wall of the saddle pad is provided with a grid-shaped groove, and a nail hole is provided at the center of the grid-shaped groove.

[0017] The beneficial effects of the technical solution provided in this application include: This application provides a laminated board and a laminated board assembly with edge sealing. The upper surface has a first adhesive layer on its bottom surface; the upper surface of the metal substrate layer is connected to the first adhesive layer; the lower surface has a second adhesive layer on its top surface, which is connected to the lower surface of the metal substrate layer; at least on opposite sides of the metal substrate layer, the corresponding sides of the upper and lower surfaces interlock to form an edge seal. This configuration achieves sealing treatment on both sides of the board, forming an effective and durable seal and a continuous, complete physical barrier, thus achieving an all-around anti-corrosion and sealing effect on both longitudinal sides and the surface coating of the board. This structural design not only effectively isolates moisture, corrosive gases, and corrosive media penetration, but also enhances the mechanical strength of the edge sealing structure through stress dispersion design, enabling the board to maintain excellent sealing integrity and corrosion resistance even under long-term exposure to sunlight and rain, temperature deformation, and other conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of a laminated panel with edge sealing provided in an embodiment of this application; Figure 2 This is a front view of a composite board with staggered upper and lower edges, provided in an embodiment of this application. Figure 3 The front view of the composite panel provided in the embodiments of this application shows that all the edge banding is on the same side. Figure 4 A schematic diagram of a laminated board without pressure rollers provided in an embodiment of this application; Figure 5 A schematic cross-sectional view of the composite board with staggered upper and lower sealing edges provided in the embodiments of this application before bending; Figure 6 A schematic diagram of the cross-section of a composite board with staggered upper and lower edges provided in an embodiment of this application after bending; Figure 7 A cross-sectional view of a composite board with all edges sealed on the same side, provided in an embodiment of this application, before bending; Figure 8 A schematic cross-sectional view of a composite board with all edge banding on the same side after bending, as provided in the embodiments of this application; Figure 9 An exploded view of the composite panel assembly provided in the embodiments of this application; Figure 10 A schematic diagram of the grid-shaped groove provided in an embodiment of this application; Figure 11 This is a schematic diagram of another form of cross-section of a composite board with all edges sealed on the same side, provided in an embodiment of this application, after bending.

[0020] In the diagram: 1. Metal substrate layer; 2. Upper surface layer; 3. First adhesive layer; 4. Lower surface layer; 5. Second adhesive layer; 6. Edge sealing; 7. Saddle pad; 8. Grid groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In marine environments, the combined effects of complex environmental characteristics and climatic factors such as sunlight, temperature, humidity, salt spray, precipitation, and wind on steel structures greatly exacerbate corrosion, leading to serious economic losses and safety hazards.

[0023] When enterprises that produce corrosive substances, such as chemical plants, salt chemical plants, pickling plants, smelting plants, paper mills, printing and dyeing plants, use color steel plates as wall and roof panels, it is necessary to ensure their functionality. Sometimes they need to be replaced once a year, and even in enterprises with strong corrosiveness, they need to be replaced every few months. Otherwise, normal production cannot be maintained and personal safety cannot be guaranteed.

[0024] In related technologies, multi-layer composite panels are used to solve the above problems, which have the effects of heat insulation, corrosion resistance and noise reduction. However, the following problems still exist: The outer edges of the boards are exposed, posing a risk of corrosion. Anti-corrosion nails are used to connect the two boards, but the nail holes are not self-healing, making them prone to leakage and corrosion.

[0025] The following is a step-by-step explanation: This application provides a laminated board with edge sealing and a laminated board assembly to solve the problem in related technologies where the outer edge of the board is exposed, posing a risk of corrosion.

[0026] Please see Figures 1-3 A composite panel with edge sealing, comprising: The upper surface layer 2 has a first adhesive layer 3 on its bottom surface; Metal substrate layer 1, the upper surface of which is connected to the first adhesive layer 3; The lower surface layer 4 has a second adhesive layer 5 on its top surface, and the second adhesive layer 5 is connected to the lower surface of the metal substrate layer 1. At least on the opposite sides of the metal substrate layer 1, the corresponding sides of the upper surface layer 2 and the lower surface layer 4 interlock to form a sealing edge 6.

[0027] The above settings achieve a sealing treatment on both sides of the board, forming an effective and durable sealing protection and a continuous and complete physical isolation barrier, thus achieving an all-round anti-corrosion and sealing effect on both sides of the board and the surface coating.

[0028] This structural design not only effectively isolates moisture, corrosive gases, and corrosive media penetration, but also enhances the mechanical strength of the edge banding structure through stress dispersion design, enabling the board to maintain excellent sealing integrity and corrosion resistance even under long-term exposure to sunlight and rain, temperature deformation, and other conditions.

[0029] Figure 1 The molded product with edge-sealed laminate is shown and marked A. Figure 4 The unpressed sheet material shown is marked as B. For details regarding the sheet material's structure, please refer to [link / reference needed]. Figures 5-8 As shown.

[0030] In some preferred embodiments, in addition to using edge sealing to enhance corrosion resistance and distribute stress, the following additional features are provided: refer to Figure 3 , Figure 7 , Figure 8 As shown, the upper surface layer 2 includes any one of colored aluminum foil, colored stainless steel foil, and colored copper foil coated with colored paint; the colored paint is fluorocarbon paint or polyester paint; the color of the colored paint is marked as C in the figure.

[0031] The first adhesive layer 3 includes a polymer and is connected to the corresponding upper surface layer 2 by a hot extrusion coating method; the polymer includes modified rubber, modified asphalt, and modified butyl rubber. The second adhesive layer 5 includes a hot melt adhesive film; The lower layer 4 includes a high weather-resistant resin film; the high weather-resistant resin film is made of one or more of PE, TPO, PVC, ASA, PVDF, PET, and ETFE.

[0032] The thickness of the upper surface layer 2 is 0.1~0.22mm; the thickness of the first adhesive layer 3 is 0.3~0.8mm; the thickness of the second adhesive layer 5 is 0.03-0.1mm; the thickness of the lower surface layer 4 is 0.08~0.2mm; and the thickness of the metal substrate layer 1 is 0.4~1.0mm.

[0033] The area of ​​the upper layer 2 is greater than the area of ​​the lower layer 4; On the two opposite sides of the metal substrate layer 1, the upper surface layer 2 is bent to cover the two sides of the metal substrate layer 1, and the connection with the lower surface layer 4 is located below the metal substrate layer 1. At the junction of the upper surface layer 2 and the lower surface layer 4, the upper surface layer 2 and the lower surface layer 4 are arranged to overlap vertically.

[0034] In this embodiment, the upper surface layer 2 is bonded to the first adhesive layer 3 by hot extrusion coating at a high temperature of 120~180°C, and then cooled and shaped before being covered with a release film and rolled up. This structure achieves a stable interlayer bond through the hot extrusion coating process, and the weather-resistant layer's metal oxidation self-protection mechanism extends the product's service life, providing dual corrosion protection. The nail hole area has self-sealing properties.

[0035] Of course, it can also take the following forms: (See attached document) Figure 11 The area of ​​the upper surface layer 2 is smaller than that of the lower surface layer 4. On opposite sides of the metal substrate layer 1, the lower surface layer 4 is bent to cover both sides of the metal substrate layer 1, and its connection with the upper surface layer 2 is located above the metal substrate layer 1. This structure achieves a stable interlayer bond through a hot extrusion coating process. The weather-resistant metal oxidation self-protection mechanism extends the product's service life, providing dual corrosion protection, and the nail hole area has self-sealing properties.

[0036] The lower surface layer 4 is laminated with the second adhesive layer 5 by melting, that is, by melting a hot melt adhesive film, and then cooled and rolled up. The roll of the lower surface layer 4 material with the hot melt adhesive film is laminated with a metal substrate by hot melting, and after lamination, it is cooled, trimmed, and rolled into a metal roll.

[0037] The first adhesive layer 3, the upper surface layer 2, is unfolded and then bonded to the already bonded lower surface layer 4 of the metal coil via hot-melt bonding. The upper surface layer is 20mm wider than the metal coil, with the metal coil located in the middle of the upper surface layer. There is a 10mm excess on each side of the upper surface layer. During the overall bonding process, the excess 10mm on both sides of the upper surface layer is folded downwards 180° by guide wheels. A precision folding process double-locks the upper and lower surface layers, achieving a sealed edge on both sides of the board and forming an effective and durable seal, creating a continuous and complete physical barrier. This provides all-around anti-corrosion sealing for both sides of the board and the surface coating. This structural design not only effectively isolates moisture, corrosive gases, and corrosive media penetration, but also enhances the mechanical strength of the edge-sealing structure through stress dispersion design, allowing the board to maintain excellent sealing integrity and corrosion resistance even under long-term exposure to sunlight, rain, and temperature deformation.

[0038] Since the area of ​​the upper surface layer 2 is larger than that of the lower surface layer 4, the first adhesive layer 3 of the upper surface layer 2 can serve as an adhesive part to strengthen the connection. The strong adhesive effect of the polymer in the first adhesive layer 3 is utilized to improve the anti-corrosion effect.

[0039] In some preferred embodiments, in addition to using edge sealing to enhance corrosion resistance and distribute stress, the following additional features are provided: This embodiment is an improvement based on the previous embodiment; The upper surface layer 2 and the lower surface layer 4 are made of the same material and have the same dimensions; the upper surface layer 2 includes any one of colored aluminum foil, colored stainless steel foil, and colored copper foil with colored paint attached; Both the first adhesive layer 3 and the second adhesive layer 5 comprise polymers and are connected to the corresponding upper surface layer 2 and the second adhesive layer 5 by hot extrusion coating. The polymers include modified rubber, modified asphalt, and modified butyl rubber. The metal substrate layer 1 is made of aluminum-zinc plate, aluminum-magnesium-manganese plate or stainless steel plate; The thickness of the upper surface layer 2 is 0.1~0.22mm; the thickness of the first adhesive layer 3 and the second adhesive layer 5 is 0.3~0.8mm; the thickness of the lower surface layer 4 is 0.1~0.22mm; and the thickness of the metal substrate layer 1 is 0.4~1.0mm. The metal substrate layer 1 is made of aluminum-zinc plate, aluminum-magnesium-manganese plate or stainless steel plate.

[0040] refer to Figure 2 , Figures 4-6 This demonstrates a staggered edge banding technique. The projection of the upper surface layer 2 onto the lower surface layer 4 partially overlaps with the lower surface layer 4. On opposite sides of the metal substrate layer 1, the upper surface layer 2 is bent to cover one side of the metal substrate layer 1, and the connection point with the lower surface layer 4 is located below the metal substrate layer 1; the lower surface layer 4 is bent to cover the other side of the metal substrate layer 1, and the connection point with the upper surface layer 2 is located above the metal substrate layer 1.

[0041] At the junction of the upper surface layer 2 and the lower surface layer 4, the upper surface layer 2 and the lower surface layer 4 are aligned or overlapped.

[0042] In this embodiment, the upper surface layer 2 is bonded to the first adhesive layer 3 via hot extrusion coating at a high temperature of 120~180°C, and then cooled, shaped, covered with a release film, and rolled up. This structure achieves a stable interlayer bond through the hot extrusion coating process, and the weather-resistant metal oxidation self-protection mechanism extends the product's service life, thus providing dual corrosion protection. The nail hole area has self-sealing properties. The bonding of the lower surface layer 4 and the second adhesive layer 5 is carried out using the same process.

[0043] The composite roll of the lower surface layer 4 and the second adhesive layer 5 is simultaneously unfolded with the composite roll of the upper surface layer 2 and the first adhesive layer 3 and bonded to the substrate by hot melt rolling. During the bonding process, the upper and lower surface materials form a left-right misaligned bonding position with a misalignment distance of 10-25mm. The upper and lower surface materials are folded and rolled 180° using the guide rollers on the side of the composite. Through a precision folding process, the upper and lower surface layers are double-interlocked and wrapped, achieving a sealing treatment on both sides of the board and forming an effective and durable sealing protection and a continuous and complete physical isolation barrier. This achieves an all-round anti-corrosion and sealing effect on both sides of the longitudinal side of the board and the surface coating.

[0044] This design further achieves the function of clearly defining the overlapping edge and the overlapped edge of the board, and can ensure that the color of the upper surface of the board does not differ due to the overlap, thus achieving color uniformity. The lower surface is consistent with the upper surface and has an anti-reverse design effect to prevent installation backwards. This structural design not only effectively isolates moisture, corrosive gases, and corrosive media penetration, but also enhances the mechanical strength of the edge-wrapping structure through stress dispersion design, so that the board can still maintain excellent sealing integrity and corrosion protection performance under long-term sun exposure, rain, temperature difference deformation and other working conditions. Based on effective corrosion protection, the efficient application of upper and lower surface materials saves materials, achieves energy conservation, and optimizes economy and aesthetics. The material-saving effect can be compared with the previous embodiment. In the previous embodiment, the area of ​​the upper surface layer 2 was larger than that of the lower surface layer 4; while in this embodiment, the upper surface layer 2 and the lower surface layer 4 have the same material and size, and the edge sealing is achieved through staggered positioning. This reduces the material required for the upper surface layer 2, thus achieving a material-saving effect.

[0045] refer to Figure 9 and Figure 10 This application also proposes a composite panel assembly comprising: Multiple or more edge-sealed composite panels; the edge-sealed composite panels are connected by connecting reinforcements; the first adhesive layer 3 of the upper surface layer 2 of the edge-sealed composite panel has the following characteristics: the polymer material exhibits directional plastic flow. The connecting reinforcement components include a saddle pad 7 and a self-drilling screw; the inner wall of the saddle pad 7 is used for contact with the upper surface layer 2 at the crest of the composite board; the inner wall of the saddle pad 7 has a grid-shaped groove 8, and a screw hole is located at the center of the grid-shaped groove 8. A sealing and pressure-reducing gasket is located on the outside of the saddle pad 7. The sealing and pressure-reducing gasket is made of EPDM elastomer, possessing excellent sealing and cushioning performance; the saddle pad 7 is a specially made carbon steel saddle pad with a hot-dip galvanized surface treatment and a thickness of 1.2mm; the self-drilling screw has a diameter of 5.5mm and a thread depth of 2mm.

[0046] During installation, first place the saddle pad 7 at the connection between the corrugation of the composite board and the purlin, then screw the self-drilled screw in vertically. After tightening, leave a 0.5mm expansion gap between the screw head and the surface of the saddle pad 7.

[0047] The saddle pad structure causes the polymer material of the first adhesive layer 3, located beneath the upper surface layer 2 of the composite board at the crest of the saddle, to undergo directional plastic flow when vertical pressure is applied by the drill bit. This flow radially laterally along the grid grooves 8, forming a uniformly thick wrapping layer. This dynamic filling mechanism can simultaneously complete 360° wrapping of the inner wall of the nail hole during bolt tightening, achieving physical isolation between the connecting reinforcement and the joint of the composite board. This structural design also generates a prestress compensation effect. When encountering strong wind loads, the elastic recovery force of the polymer material can effectively suppress the expansion of the nail hole diameter. Combined with the stress dispersion characteristics of the grid structure, the overall connection system has continuous and stable sealing and protection performance, thereby achieving the technical indicators of >98% airtightness of the composite board laying joint, 42% improvement in wind uplift resistance, and maintaining more than 90% of the initial waterproof performance after 5 repeated disassembly and assembly.

[0048] The concave grid structure and the rheological properties of the polymer material work synergistically to form a dual-sealing interface of mechanical interlocking and chemical bonding; the dynamic compensation mechanism can eliminate sealing gaps caused by temperature deformation, extending the corrosion resistance of the galvanized steel sheet in the metal base layer to 25 years in the salt spray test; the pre-formed installation and positioning structure improves construction efficiency by 60% and eliminates the need for special sealant; the reversible connection design supports non-destructive disassembly, allowing for single-point replacement of damaged components during maintenance, reducing the total life cycle maintenance cost by more than 35%; installation with this accessory can greatly increase the wind uplift resistance of the sheet material.

[0049] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0050] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A laminated board with edge sealing, characterized in that, It includes: The upper surface layer (2) has a first adhesive layer (3) on its bottom surface; A metal substrate layer (1) has its upper surface connected to the first adhesive layer (3); The lower surface layer (4) has a second adhesive layer (5) on its top surface, and the second adhesive layer (5) is connected to the lower surface of the metal substrate layer (1); At least on the opposite sides of the metal substrate layer (1), the corresponding sides of the upper surface layer (2) and the lower surface layer (4) interlock to form a sealing edge (6).

2. The laminated board with edge sealing as described in claim 1, characterized in that: The upper surface layer (2) and the lower surface layer (4) are made of the same material and have the same dimensions; the upper surface layer (2) includes any one of colored aluminum foil, colored stainless steel foil, and colored copper foil with colored paint attached; The first adhesive layer (3) and the second adhesive layer (5) both include polymers and are connected to the corresponding upper surface layer (2) and the second adhesive layer (5) by hot extrusion coating; the polymers include modified rubber, modified asphalt and modified butyl rubber.

3. The laminated board with edge sealing as described in claim 2, characterized in that: The thickness of the upper surface layer (2) is 0.1~0.22mm; the thickness of the first adhesive layer (3) and the second adhesive layer (5) is 0.3~0.8mm; the thickness of the lower surface layer (4) is 0.1~0.22mm; and the thickness of the metal substrate layer (1) is 0.4~1.0mm.

4. The laminated board with edge sealing as described in claim 2, characterized in that: The projection of the upper surface layer (2) onto the lower surface layer (4) partially overlaps with the lower surface layer (4); On opposite sides of the metal substrate layer (1), the upper surface layer (2) is bent to cover one side of the metal substrate layer (1), and the connection with the lower surface layer (4) is located below the metal substrate layer (1); the lower surface layer (4) is bent to cover the other side of the metal substrate layer (1), and the connection with the upper surface layer (2) is located above the metal substrate layer (1).

5. The laminated board with edge sealing as described in claim 4, characterized in that: At the junction of the upper surface layer (2) and the lower surface layer (4), the upper surface layer (2) and the lower surface layer (4) are aligned or overlapped.

6. The laminated board with edge sealing as described in claim 1, characterized in that: The upper surface layer (2) includes any one of colored aluminum foil, colored stainless steel foil, and colored copper foil with colored paint attached; The first adhesive layer (3) comprises a polymer and is connected to the corresponding upper surface layer (2) by thermal extrusion coating. The second adhesive layer (5) includes a hot melt adhesive film; The lower surface layer (4) includes a high weather-resistant resin film.

7. The laminated board with edge sealing as described in claim 6, characterized in that: The thickness of the upper surface layer (2) is 0.1~0.22mm; the thickness of the first adhesive layer (3) is 0.3~0.8mm; the thickness of the second adhesive layer (5) is 0.03-0.1mm; the thickness of the lower surface layer (4) is 0.08~0.2mm; and the thickness of the metal substrate layer (1) is 0.4~1.0mm.

8. The laminated board with edge sealing as described in claim 7, characterized in that: The area of ​​the upper surface layer (2) is larger than the area of ​​the lower surface layer (4); on the two opposite sides of the metal substrate layer (1), the upper surface layer (2) is bent to cover the two sides of the metal substrate layer (1), and the connection with the lower surface layer (4) is located below the metal substrate layer (1); at the connection between the upper surface layer (2) and the lower surface layer (4), the upper surface layer (2) and the lower surface layer (4) are stacked vertically; or, The area of ​​the upper surface layer (2) is smaller than the area of ​​the lower surface layer (4); on the two opposite sides of the metal substrate layer (1), the lower surface layer (4) is bent to cover the two sides of the metal substrate layer (1), and the connection with the upper surface layer (2) is located above the metal substrate layer (1).

9. The laminated board with edge sealing as described in claim 1, characterized in that: The metal substrate layer (1) is made of aluminum-zinc plate, aluminum-magnesium-manganese plate or stainless steel plate.

10. A composite panel assembly, characterized in that, It includes: Multiple edge-sealed laminates as described in claim 2 or 6; the edge-sealed laminates are connected by connecting reinforcements; The connecting reinforcement includes a saddle pad (7) and a drill bit; the inner wall of the saddle pad (7) is used for contact with the upper surface layer (2) at the crest of the composite board; the inner wall of the saddle pad (7) is provided with a grid-shaped groove (8), and a nail hole is provided at the center of the grid-shaped groove (8).

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