Cleaning plate with hot melt film

Abstract

The utility model belongs to the technical field of building structures, and particularly provides a clean board with a hot melt film, which comprises a rock wool core board, panels are respectively attached to two side surfaces of the rock wool core board perpendicular to the thickness direction of the rock wool core board, the thickness of each panel is 0.4 mm-0. 6mm, keels are respectively arranged on four side surfaces of the rock wool core board parallel to the thickness direction of the rock wool core board, and the hot melt film is arranged on the keels. The thickness of the keel ranges from 0.55 mm to 0.65 mm. The surface, away from the rock wool core plate, of the face plate is coated with a polyethylene coating or a polyvinylidene fluoride coating with the thickness ranging from 18 micrometers to 22 micrometers, a hot melt adhesive film with the thickness ranging from 28 micrometers to 32 micrometers is arranged between the face plate and the rock wool core plate, and the hot melt adhesive film is a modified polyethylene film or an EVA adhesive film.

Description

Technical Field

[0001] This utility model belongs to the field of building structure technology, and specifically provides a cleanroom panel with a hot melt film. Background Technology

[0002] Currently, the structure of domestic cleanroom panels is basically composed of color steel plates on the top and bottom, with rock wool, magnesium oxide board, and other materials used as the core material, and they are bonded together with single or two-component polyurethane adhesive.

[0003] The inventors learned that the product structure had two problems during the production process: first, it required uniform spraying or brushing, which was cumbersome; second, the curing time was relatively fixed, and if the process was interrupted or prolonged due to operational problems, it would greatly affect the bonding performance of the finished product, causing quality problems such as board detachment during use. Utility Model Content

[0004] The purpose of this invention is to provide a cleanroom plate with a hot melt film, which can at least solve one of the above-mentioned technical problems.

[0005] To address the aforementioned problems in the prior art, one or more embodiments of this utility model provide a cleanroom panel with a hot-melt film, comprising a rock wool core board, with a panel attached to two sides of the rock wool core board perpendicular to its own thickness direction, the panel having a thickness of 0.4mm to 0.6mm, and keels respectively provided on four sides of the rock wool core board parallel to its own thickness direction, the keels having a thickness of 0.55mm to 0.65mm; the surface of the panel facing away from the rock wool core board is coated with a polyethylene coating or polyvinylidene fluoride coating with a thickness of 18μm to 22μm, and a hot-melt adhesive film with a thickness of 28μm to 32μm is provided between the panel and the rock wool core board, the hot-melt adhesive film being a modified polyethylene film or an EVA film.

[0006] Furthermore, the keel is an arch-shaped keel, with a groove in the middle along the thickness direction of the clean panel, the groove facing the outside of the clean panel for connecting connectors.

[0007] Furthermore, the bow-shaped keel has detachable stop plates at both ends along the thickness direction of the cleanroom panel. The stop plates and the keel can be magnetically attracted. The stop plates are attached to the side surface of the panel and are parallel to the thickness direction of the cleanroom panel. The end of the stop plate away from the keel is flush with the surface of the panel.

[0008] The beneficial effects of one or more of the above technical solutions:

[0009] In this solution, a hot-melt adhesive film is attached between the panel and the rock wool core board. This hot-melt adhesive film melts upon heating to bond and fix the panel and the rock wool core board. This means that when assembling the cleanroom panel, there is no need to apply adhesive by pouring or brushing it onto the cleanroom panel, simplifying the operation process. Furthermore, using a hot-melt adhesive film reduces the long waiting time caused by adhesive curing, and decreases the probability of operational problems affecting the quality of the panels.

[0010] Meanwhile, in this solution, the panel thickness is 0.4mm-0.6mm, the coating thickness on the panel surface is 18μm-22μm, and the hot melt adhesive film thickness is 28μm-32μm. The hot melt adhesive film is a modified polyethylene film or EVA film. This setup, through the control panel and parameters such as the hot melt adhesive film thickness, allows the hot melt adhesive film to complete hot-pressing melting and cooling curing within a set time, improving the assembly efficiency of the cleanroom panel and enhancing the assembly quality.

[0011] In this design, the bow-shaped keel has detachable stop plates at both ends along the thickness direction of the cleanroom panel. These stop plates are magnetically attracted to the keel, adhering to the side surface of the panel, with the end of the stop plate furthest from the keel flush with the panel surface. This allows for the use of detachable stop plates to limit the hot-melt adhesive film during hot-pressing, confining it between the panel and the rock wool core board to improve adhesion. Furthermore, these stop plates can be removed to avoid impacting the use of the cleanroom panel. Attached Figure Description

[0012] The following description refers to the accompanying drawings, in which:

[0013] Figure 1 This is a cross-sectional view of the cleanroom plate portion of the embodiment of this utility model.

[0014] List of reference numerals in the attached diagram: 1. Rock wool core board; 2. Hot melt adhesive film; 3. Panel; 4. Color coating; 5. Stop plate; 6. Groove; 7. Keel. Detailed Implementation

[0015] Those skilled in the art should understand that the embodiments described below are merely preferred embodiments of this application, and these preferred embodiments are only used to explain the technical principles of this application and are not intended to limit the scope of protection of this application.

[0016] It should be noted that in the description of this application, terms such as "center," "upper," "lower," "top," "bottom," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" 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; and they can also refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0018] It should be noted that the hot melt film in this application is an abbreviation for hot melt adhesive film, which is a film-like structure with a large length and width but a small thickness.

[0019] like Figure 1 As shown, this embodiment provides a cleanroom panel with a hot melt film, including a rock wool core board 1. Panels 3 are attached to two sides of the rock wool core board 1 perpendicular to its thickness direction. The thickness of the panels 3 is 0.4mm to 0.6mm. Four ribs 7 are respectively provided on the four sides of the rock wool core board 1 parallel to its thickness direction. The thickness of the ribs 7 is 0.55mm to 0.65mm. The surface of the panels 3 facing away from the rock wool core board 1 is coated with a polyethylene coating or a polyvinylidene fluoride coating with a thickness of 18μm to 22μm. A hot melt adhesive film 2 with a thickness of 28μm to 32μm is provided between the panels 3 and the rock wool core board 1. The hot melt adhesive film 2 is a modified polyethylene film or an EVA film.

[0020] Specifically, panel 3 here is a metal panel, preferably with a thickness of 0.4mm, 0.5mm, or 0.6mm. The metal panel is made of stainless steel. The surface of the metal panel is galvanized, with a zinc plating amount of 30g / m². 2 The polyethylene coating or polyvinylidene fluoride coating on the surface of panel 3 forms a colored coating. Preferably, the thickness of the colored coating is 18 μm, 20 μm, or 22 μm.

[0021] Specifically, in this embodiment, the projection of the hot melt adhesive film 2 along the thickness direction of the clean panel completely covers the surface of the panel 3 near the rock wool core board 1. Preferably, the thickness of the hot melt adhesive film 2 is 28μm, 30μm, or 32μm.

[0022] Specifically, the apparent density of rock wool core board 1 here is 80 g / m³. 3 -120g / m 3 It is also a square-shaped board. Preferably, the apparent density of the rock wool core board 1 here is 80 g / m³. 3 100g / m 3 Or 120g / m 3 .

[0023] In this embodiment, the surface of panel 3 has reinforcing ribs (not shown in the figure) arranged sequentially along its length, and multiple reinforcing ribs are combined to form a wave shape. Specifically, the cross-section of the reinforcing ribs is arc-shaped or square.

[0024] Specifically, panel 3 is a square panel with a length dimension L1, a width dimension L2, and a thickness dimension H1, where L1 > L2 > H1. Similarly, the thickness of the hot melt adhesive film and the thickness of the rock wool core material are the minimum values ​​of their respective length, width, and thickness dimensions.

[0025] In this embodiment, the keel 7 is an arch-shaped keel, and the keel 7 has a groove 6 in the middle along the thickness direction of the clean panel. The groove 6 faces the outside of the clean panel for connecting the connector. Specifically, the connector here is a profile connector, and adjacent clean panels can be connected through the profile connector and the groove 6 of the keel. The connector here can use existing technology.

[0026] Specifically, the keel 7 here is made of galvanized steel sheet. Preferably, the thickness of the galvanized steel sheet and the keel 7 formed therefrom is 0.55mm, 0.6mm, or 0.65mm. The zinc coating of the galvanized steel sheet here is 30g / m². 2 .

[0027] More specifically, the outer contour of the keel 7 here is roughly square, so as to use its sides to stop and fit the panel 3 and the rock wool core board 1.

[0028] In this embodiment, the bow-shaped keel 7 has detachable stop plates 5 at both ends along the thickness direction of the cleanroom panel. The stop plates 5 and the keel 7 can be magnetically attracted to each other. The stop plates 5 are attached to the side surface of the panel 3, parallel to the thickness direction of the cleanroom panel, and the end of the stop plate 5 away from the keel 7 is flush with the surface of the panel 3.

[0029] Specifically, in one structural configuration where the keel 7 and the stop plate 5 are magnetically attracted, the stop plate 5 is at least partially magnetic, and the keel 7 is a ferromagnetic steel plate. In other configurations, magnets are bonded to both the keel 7 and the stop plate 5, and the two are magnetically attracted and fixed together by external magnets.

[0030] As can be seen, when a removable stop plate 5 is used, it can prevent the hot melt adhesive film 2 from overflowing between the panel 3 and the rock wool core board 1 during the hot melting process, thereby ensuring the hot melt bonding and fixing effect of the hot melt adhesive film 2. Moreover, the removable stop plate 5 will not affect the subsequent assembly process of the cleanroom panel.

[0031] With the hot melt adhesive film 2 directly applied to the surface of the metal panel, compared with the existing product structure that re-coats the adhesive layer, firstly, the processes of applying adhesive, scraping adhesive, and cleaning up excess adhesive are completely eliminated, making the process simpler; secondly, the production line can be stopped at any time without being affected by the adhesive curing time, and the product bonding performance is stable; and thirdly, the raw material and production costs are reduced.

[0032] Assembly process: First, the rolled panel material is fed into the assembly workbench, and then panel 3 is cut to the required size. Second, one panel is laid flat on the assembly workbench, and the core material is laid on the surface of panel 3 on the lower workbench. Then, the upper panel 3 is snapped together. After the panels 3 are snapped together, the upper and lower panels 3 are hot-pressed (hot-pressing temperature is 120℃ / 15S) to allow the hot melt adhesive film 2 to hot melt and bond panel 3 and rock wool core board 1. Finally, the cleanroom panels are air-cooled, and multiple cleanroom panels are stacked.

[0033] The technical solutions of this application have been described in conjunction with the preferred embodiments above. However, it will be readily understood by those skilled in the art that the scope of protection of this application is not limited to the above preferred embodiments. Without departing from the technical principles of this application, those skilled in the art can disassemble and combine the technical solutions in the above preferred embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this application will fall within the scope of protection of this application.

Claims

1. A clean sheet having a hot melt film, characterized by, The product includes a rock wool core board, on which two sides perpendicular to its thickness direction are respectively attached a panel, the panel having a thickness of 0.4mm to 0.6mm. Four sides parallel to the thickness direction of the rock wool core board are respectively provided with keels, the keels having a thickness of 0.55mm to 0.65mm. The surface of the panel facing away from the rock wool core board is coated with a polyethylene coating or a polyvinylidene fluoride coating with a thickness of 18μm to 22μm. A hot melt adhesive film with a thickness of 28μm to 32μm is provided between the panel and the rock wool core board, the hot melt adhesive film being a modified polyethylene film or an EVA film.

2. The clean sheet having a hot melt film according to claim 1, wherein, The surface of the panel has reinforcing ribs arranged sequentially along its length, and multiple reinforcing ribs are combined to form a wave shape.

3. The clean sheet having a hot melt film according to claim 1, wherein, The keel is an arch-shaped keel, and the keel has a groove in the middle along the thickness direction of the clean panel. The groove faces the outside of the clean panel for connecting the connector.

4. The clean sheet having a hot melt film according to claim 3, wherein, The bow-shaped keel has detachable stop plates at both ends along the thickness direction of the cleanroom panel. The stop plates are magnetically attracted to the keel. The stop plates are attached to the side surface of the panel and are parallel to the thickness direction of the cleanroom panel. The end of the stop plate away from the keel is flush with the surface of the panel.

5. The clean sheet having a hot melt film according to claim 1, wherein, The panel is a metal panel with a thickness of 0.5mm.

6. The clean sheet having a hot melt film according to claim 1, wherein, The surface of the keel is plated with a zinc layer, and the thickness of the keel is 0.6 mm.

7. The clean sheet having a hot melt film according to claim 1, wherein, The thickness of the polyethylene coating or polyvinylidene fluoride coating is 20 μm.

8. The clean sheet having a hot melt film according to claim 1, wherein, The thickness of the hot melt adhesive film is 30 μm.

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