Novel flat tongue-and-groove steel plate composite wall panel and production method thereof

Abstract

The invention relates to a novel flat tongue-and-groove steel plate composite wall panel which is formed by compositing a veneering layer, a sandwich layer and an outer wall surface color steel plate from inside to outside, the veneering layer and the sandwich layer are composited through adhesives, and the sandwich layer and the outer wall surface color steel plate are composited through adhesives. The thickness of the outer wall surface color steel plate is 0.5-0.75 mm, the two ends of the outer wall surface color steel plate are bent, and the bending height H is 30-100 mm. According to the present invention, the appearance is flat, the processing and the construction are simple, the cavities are designed at the rabbets so as to prevent capillary permeation, and the kraft paper veneering layer can provide the vapor-proof and seepage-proof effects so as to provide the good waterproof performance.

Description

Technical Field

[0001] The invention relates to a composite wall panel and a production method thereof, in particular to a composite wall panel of a novel flat tongue-and-groove steel plate and a production method thereof, belonging to the technical field of industrial building design and construction. Background Art

[0002] Ordinary corrugated steel sheet walls have been widely used in steel structure factories. With the development of industrial buildings, the demand for flat effects on the facades of factories is increasing. The corrugated steel sheet walls used in traditional steel structure factories cannot achieve the wall effect of flat steel plates.

[0003] Therefore, in order to achieve the effect of flat steel plate wall, the market currently usually uses two types of products: double-layer steel plate insulation sandwich panel wall and single-layer flat steel plate wall. However, both double-layer steel plate insulation sandwich panel wall and single-layer flat steel plate wall have technical defects, specifically: 1. Double-layer steel plate insulation sandwich panels paste rock wool core material between two layers of flat steel plates, thereby improving the problems of poor thermal insulation and uneven surface of single panels. However, the comprehensive cost of double-layer composite flat steel plate walls is high, the economy is poor, and it is difficult to promote.

[0004] 2. Single-layer flat steel plates are more economical, but because the surface of single-layer steel plates is easy to deform, uneven bulges are prone to appear on the surface of wall panels. In order to reduce the problem of easy deformation of the steel plate surface, the plate width is usually made 450mm or even smaller, which affects the facade effect. In short, single-layer flat steel plates affect the appearance of buildings due to deformation and small plate width.

[0005] In summary, it is an urgent need of the industrial construction industry to develop a wall panel that is economical, beautiful, has a good surface flatness, and has the advantages of heat preservation, sound insulation, wind resistance, and convenient construction, and can be standardized and automatically produced. Therefore, the present invention is proposed. Summary of the invention

[0006] In view of the above-mentioned technical problems of the prior art, the purpose of the present invention is to provide a composite wall panel of a new type of flat tongue-and-groove steel plate with thermal insulation effect, good economy, easy processing and convenient construction, and a production method thereof, so as to solve the technical problems raised in the background technology.

[0007] To achieve the above object, the present invention is achieved through the following technical solutions: A novel composite wall panel of flat tongue-and-groove steel plates is composed of a veneer layer, a sandwich layer and an outer wall color steel plate from the inside to the outside. Adhesive is used to compound the veneer layer and the sandwich layer, and the sandwich layer and the outer wall color steel plate. The thickness of the outer wall color steel plate is 0.5-0.75mm, and both ends of the outer wall color steel plate are bent, and the bending height H is 30-100mm.

[0008] The tongue and groove dimensions of the exterior wall color steel plate are 15-30 mm for the straight section L1 and 4-11 mm for the bent section L2, with a 4 mm*4 mm cavity being provided between the two sections.

[0009] The exterior wall colored steel plate is a pure flat colored steel plate or a small corrugated colored steel plate, the sandwich layer is a rock wool sandwich layer or a foamed polystyrene sandwich layer, the veneer layer is a kraft paper veneer layer, and the adhesive is a polyurethane adhesive.

[0010] A method for producing a novel composite wall panel of flat tongue and groove steel plates comprises the following steps: (1) According to the project structural design and architectural design requirements, select the appropriate type and thickness of the exterior wall color steel plate, and determine the bending height H of the exterior wall color steel plate; (2) After determining the structural dimensions of the exterior wall color steel plate, cut the exterior wall color steel plate, sandwich layer, and veneer layer materials used, and use a bending machine to bend the exterior wall color steel plate according to the size requirements; (3) The cavity at the tongue and groove is specially designed, and the special design is a 4mm*4mm chamfer to reduce water leakage caused by capillary phenomenon and enhance waterproof ability; (4) Pre-process the sandwich layer. If the sandwich layer is made of rock wool, adjust the direction of the rock wool fibers; (5) spraying adhesive on the exterior wall color steel plate of step (1) and the sandwich layer of step (4), and assembling them; (6) Paste the veneer layer, and pass the composite wall panel through the crawler line, heat and compact it to make the glue completely solidify to obtain the finished product.

[0011] Preferably, in step (1), the thickness of the exterior wall color steel plate is 0.5-0.75 mm; and the bending height H is 30-100 mm.

[0012] Preferably, in step (2), the tongue and groove size of the exterior wall color steel plate is 15-30 mm in the straight section L1 and 4-11 mm in the bent section L2.

[0013] Preferably, the sandwich layer in step (4) is a rock wool sandwich layer or a foamed polystyrene sandwich layer.

[0014] Preferably, the adhesive in step (5) is a polyurethane adhesive.

[0015] Preferably, the veneer layer in step (6) is a kraft paper veneer layer.

[0016] Preferably, the heating and compacting time in step (6) is 8-10 minutes.

[0017] The novel composite wall panel of flat tongue and groove steel plate and the production method thereof of the present invention have the following beneficial effects: 1. The surface of the exterior wall color steel plate in the composite wall panel of the present invention can be flat or slightly wavy, with rich colors and excellent visual effects; 2. The sandwich layer in the present invention is a foamed polystyrene sandwich layer or a rock wool sandwich layer, and the wall surface is light, heat-insulating, easy to process, and economical; 3. The production method of the new flat tongue and groove steel plate composite wall panel of the present invention is an automated production line, and its production process is standardized and mechanized, reducing manual work. Traditional flat steel plate wall panels are made by hand, and the daily production capacity of a manual production line is only 300-500 square meters, usually requiring 5-10 workers. Using the automated production line of the present invention, the daily production capacity reaches 2000-3000 square meters, and only 2-3 workers are needed for one production line. Therefore, the use of the composite wall panel of the present invention and its production method can greatly improve production efficiency; 4. The cavity is designed at the tongue and groove of the present invention to prevent capillary penetration, and the kraft paper veneer layer can play a role in vapor isolation and anti-seepage, and has good waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the present invention; Figure 3 This is a schematic diagram of the side view structure of the exterior wall color steel plate in Example 1; Figure 4 This is a schematic diagram of the side view structure of the exterior wall color steel plate in Example 2; Figure 5 This is a schematic diagram of the connection nodes at the tongue and groove of the present invention; Among them, 1 is the exterior wall color steel plate, 2 is the sandwich layer, 3 is the veneer layer, and 4 is the adhesive. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto. Example

[0021] like Figure 1-3 As shown, the composite wall panel of the new flat tongue and groove steel plate of this embodiment 1 is composed of a veneer layer 3, a sandwich layer 2 and an outer wall color steel plate 1 from the inside to the outside, and an adhesive 4 is used to bond the veneer layer 3 and the sandwich layer 2, and the sandwich layer 2 and the outer wall color steel plate 1.

[0022] Preferably, the exterior wall color steel plate 1 in this embodiment 1 is a small corrugated color steel plate, and the small corrugation refers to the steel plate having concave and convex corrugations no larger than 2 mm in detail, but the overall visual effect of the wall is flat. The sandwich layer 2 is a rock wool sandwich layer or a foamed polystyrene sandwich layer, the veneer layer 3 is a kraft paper veneer layer, and the adhesive 4 is a polyurethane adhesive.

[0023] More preferably, in this embodiment 1, the thickness of the exterior wall color steel plate 1 is 0.5-0.75mm, such as 0.5mm, 0.75mm, 0.625mm, etc., and the two ends of the exterior wall color steel plate 1 are bent, and the bending height H is 30-100mm, such as 30mm, 80mm, 55mm, 40mm, 60mm, 70mm, 90mm, 100mm, etc. In the tongue and groove size of the exterior wall color steel plate 1, the straight section L1 is 15-30mm, such as 15mm, 30mm, 22.5mm, etc., and the bending section L2 is 4-11mm, such as 4mm, 11mm, 7.5mm, etc.

[0024] The production method of the novel flat tongue and groove steel plate composite wall panel in this embodiment 1 comprises the following steps: According to the requirements of the project structure design and architectural design, select the appropriate type and thickness of the exterior wall color steel plate 1. The exterior wall color steel plate 1 in this embodiment 1 is a small corrugated color steel plate with a thickness controlled at 0.5mm-0.75mm. Determine the bending height H of the exterior wall color steel plate 1. The bending height of the wall panel is controlled at 30mm-100mm. Figure 3 .

[0025] (2) After determining the structural dimensions of the exterior wall color steel plate 1, cut the materials of the exterior wall color steel plate 1, the sandwich layer 2, and the veneer layer 3, and use a bending machine to bend the exterior wall color steel plate 1 according to the size requirements, such as Figure 3 The tongue and groove size of the exterior wall color steel plate 1 is 15-30mm in the straight section L1 and 4-11mm in the bending section L2.

[0026] (3) Tongue and groove connection scheme Figure 5 As shown, a 4mm*4mm cavity is bent at the tongue and groove to prevent capillary penetration. The veneer layer 3 is made of kraft paper, which has good waterproof performance.

[0027] (4) Pre-processing the sandwich layer 2. If the sandwich layer 2 is made of rock wool, the direction of the rock wool fibers is adjusted. The sandwich layer 2 can also be a foamed polystyrene sandwich layer.

[0028] (5) Spray adhesive 4 on the exterior wall color steel plate 1 of step (1) and the sandwich layer 2 of step (4), and assemble them; adhesive 4 may be a polyurethane adhesive.

[0029] (6) Pasting the veneer layer 3, which is a kraft paper veneer layer, and passing the composite wall panel through a crawler line, heating and compacting for 8-10 minutes to completely cure the glue to obtain a finished product, such as Figure 1 and 2 . Example

[0030] like Figure 4 As shown, the exterior wall colored steel plate 1 in this embodiment 2 is a pure flat colored steel plate, and pure flat means that the surface of the steel plate is flat and has no texture or unevenness. Other structures, connection relationships, and production methods are the same as those in embodiment 1, and will not be described here.

[0031] In Embodiment 1 and Embodiment 2 of the present invention, the width, height and other dimensions of the exterior wall color steel plate 1 are determined according to the span size and wind load size. When the span is large, measures such as increasing the thickness and height H of the exterior wall color steel plate 1 and reducing the span can be adopted.

[0032] The type of sandwich layer 2 can be adjusted according to the specific requirements of thermal insulation, fire protection, noise reduction, etc. of the specific project. The expanded polystyrene sandwich layer is preferably used, which has the characteristics of light weight, thermal insulation, easy processing, good economy, etc., which can greatly improve production efficiency.

[0033] The exterior wall colored steel plate 1 of the present invention can be a pure flat colored steel plate, or can be replaced by a small corrugated colored steel plate. To meet different visual needs, the colored steel plate 1 and the veneer layer 3 can change color according to needs, while meeting aesthetic and economic requirements.

[0034] The present invention can be laid in conjunction with wall purlins, door and window beams, etc. The spacing between purlins should not exceed the bearing capacity of the board span, and structural nails are arranged at the tongue and groove positions to fix the tongue and groove of the upper and lower wall panels at the same time.

[0035] The invention can also leave holes inside to hide pipelines. The wall panel is fixed to the main structure with structural nails, and a special cavity is left at the tongue and groove to improve the waterproof problem caused by capillary penetration.

[0036] The above embodiments are only used to explain the inventive concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A novel composite wall panel of flat tongue and groove steel plate, characterized in that: It is composed of a veneer layer, a sandwich layer and an outer wall color steel plate from the inside to the outside, and adhesive is used to compound between the veneer layer and the sandwich layer, and between the sandwich layer and the outer wall color steel plate; the thickness of the outer wall color steel plate is 0.5-0.75mm, and the two ends of the outer wall color steel plate are bent, and the bending height H is 30-100mm.

2. The novel composite wall panel of flat tongue and groove steel plate as claimed in claim 1, characterized in that: The tongue and groove dimensions of the exterior wall color steel plate are 15-30 mm for the straight section L1 and 4-11 mm for the bent section L2, with a 4 mm*4 mm cavity being provided between the two sections.

3. The novel composite wall panel of flat tongue and groove steel plate as claimed in claim 1 or 2, characterized in that: The exterior wall colored steel plate is a pure flat colored steel plate or a small corrugated colored steel plate, the sandwich layer is a rock wool sandwich layer or a foamed polystyrene sandwich layer, the veneer layer is a kraft paper veneer layer, and the adhesive is a polyurethane adhesive.

4. A method for producing a composite wall panel of a novel flat tongue and groove steel plate as claimed in claim 3, characterized in that The steps include: (1) According to the project structural design and architectural design requirements, select the appropriate type and thickness of the exterior wall color steel plate, and determine the bending height H of the exterior wall color steel plate; (2) After determining the structural dimensions of the exterior wall color steel plate, cut the exterior wall color steel plate, sandwich layer, and veneer layer materials used, and use a bending machine to bend the exterior wall color steel plate according to the size requirements; (3) The cavity at the tongue and groove is specially designed, and the special design is a 4mm*4mm chamfer; (4) Pre-process the sandwich layer. If the sandwich layer is made of rock wool, adjust the direction of the rock wool fibers; (5) spraying adhesive on the exterior wall color steel plate of step (1) and the sandwich layer of step (4), and assembling them; (6) Paste the veneer layer, and pass the composite wall panel through the crawler line, heat and compact it to make the glue completely solidify to obtain the finished product.

5. The method for producing a composite wall panel of a novel flat tongue and groove steel plate as claimed in claim 4, characterized in that: In the step (1), the thickness of the exterior wall color steel plate is 0.5-0.75 mm; and the bending height H is 30-100 mm.

6. The method for producing a composite wall panel of a novel flat tongue and groove steel plate as claimed in claim 4, characterized in that: In the step (2), the tongue and groove dimensions of the exterior wall color steel plate are 15-30 mm in the straight section L1 and 4-11 mm in the bent section L2.

7. The method for producing a composite wall panel of a novel flat tongue and groove steel plate as claimed in claim 4, characterized in that: The sandwich layer in step (4) is a rock wool sandwich layer or a foamed polystyrene sandwich layer.

8. The method for producing a composite wall panel of a novel flat tongue and groove steel plate as claimed in claim 4, characterized in that: The adhesive in step (5) is a polyurethane adhesive.

9. The method for producing a composite wall panel of a novel flat tongue and groove steel plate as claimed in claim 4, characterized in that: The veneer layer in step (6) is a kraft paper veneer layer.

10. The method for producing a composite wall panel of a novel flat tongue and groove steel plate as claimed in claim 4, characterized in that: The heating and compacting time in step (6) is 8-10 minutes.

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