Sandwich thermal insulation GRC plate and manufacturing process thereof

Abstract

The invention relates to the technical field of GRC exterior wall cladding production, and discloses a sandwich heat preservation GRC plate and a manufacturing process thereof.The sandwich heat preservation GRC plate comprises an inner acanthus, a heat preservation layer is arranged between the inner acanthus and an outer acanthus, and the manufacturing process comprises the steps that a mold table is cleaned, and a mold is installed; determining the positions of the anchor rod and the bonding disc, and placing a magnet to mark the position; putting the insulating layer into the mold and marking the positions and sizes of the bonding disc and the anchor rod; taking out the thermal insulation layer and cutting the thermal insulation layer; brushing a release agent; stirring the cement slurry; spraying the outer acanthus; placing the cut thermal insulation layer, and placing an anchor rod; spraying the bonding disc and the edge reinforcing rib; placing the thermal insulation layer cutting blocks, and spraying the inner leaf plate; mold pressing and surface finishing; performing maintenance; demolding is conducted; and welding the back-attached steel frame. The method is suitable for factory assembly line processing, manufacturing and production, the process is simple and environmentally friendly, the technological process is simple and convenient, technical measures are easy to master, the forming efficiency is high, and the manufactured GRC is good in heat preservation effect, good in quality, high in strength and high in durability.

Description

Technical Field

[0001] The invention relates to the technical field of GRC exterior wall hanging board production, in particular to a sandwich insulation GRC board and a production process thereof. Background Art

[0002] GRC is a fiber concrete composite material with alkali-resistant glass fiber as reinforcement material and cement mortar as matrix material. It is formed by embedding glass fiber with high elastic modulus in cement matrix. GRC building exterior wall decorative hanging panels are mainly composed of GRC ribbed panels and back-attached steel frames. The ribbed panels are non-load-bearing exterior decorative components of buildings, and the back-attached steel frames are metal frames with structural functions. The function of the back-attached steel frames is to support the GRC ribbed panels through flexible anchor rods and gravity anchor rods, and connect them to the main structure of the building.

[0003] At present, the design of GRC panels in my country is just to spray a layer of GRC panels or place rock wool between the GRC panels and the back-attached steel frame for insulation. This will greatly reduce the insulation effect of the GRC panels and increase the process on the construction site. The reinforced concrete sandwich insulation wall panels are complicated to make and their heavy weight leads to large seismic effects during earthquakes. The node design is high and large, which affects the indoor space and practices. It can no longer meet the needs of current factory production and on-site construction. Therefore, we proposed a sandwich insulation GRC panel and its production process to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a sandwich insulation GRC board and a manufacturing process thereof, so as to solve the problem that the design of the existing GRC board proposed in the above background technology is only to spray a layer of GRC board or place rock wool between the GRC board and the back steel frame for insulation, which will greatly reduce the insulation effect of the GRC board and increase the process on the construction site. The reinforced concrete sandwich insulation wall panel is complicated to manufacture and has a large weight, which leads to a large seismic effect during an earthquake. The node design is high and the node design is large, which affects the indoor space and practices, and can no longer meet the needs of current factory production and on-site construction.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sandwich insulation GRC panel and a manufacturing process thereof, comprising an inner leaf plate, a back-attached steel frame being fixed to the upper end surface of the inner leaf plate, an insulation layer being arranged between the inner leaf plate and the outer leaf plate, an insulation layer cutting block being plugged at the top of the insulation layer, an anchor rod and a bonding disk being fixed in the insulation layer, the anchor rod being welded to the back-attached steel frame, and edge reinforcing ribs being fixed to the outer sides of the inner leaf plate, the outer leaf plate and the bonding disk.

[0006] The production process of sandwich insulation GRC board includes the following steps: S1: Clean the mold table, install the mold, determine the position of the anchor rod and bonding plate according to the drawing, and place the positioning magnet on the edge of the mold to mark the position; S2: Put the insulation layer into the mold, lay out the wire according to the magnet marking position, and then mark the position and size of the bonding disk and the position of the anchor rod on the insulation layer according to the laying-out position; S3: taking out the marked insulation layer and cutting the insulation layer according to the position and size marked on the insulation layer for later use; S4: Apply a release agent to the mold; S5: Stir cement slurry, prepare glass fiber, weigh the mass of cement, sand and water according to the ratio, first add part of the water and sand into the mixing bucket and mix well, then gradually add water and cement, slowly add cement while stirring, after the cement is added, stir for 30-60s to mix well; S6: First spray 2-3mm cement slurry, then spray the GRC outer blade; S7: Place the cut insulation layer, place the anchor rods according to the anchor rod positions marked in S2, and then spray the bonding disc and GRC wall panel edge reinforcement ribs; S8: Use S3 insulation layer cut pieces to seal the insulation layer and spray the inner blade; S9: Press and finish the surface, smooth and press the edges of the components, and then carry out GRC wall panel maintenance and demoulding; S10: The anchor rod is welded to the attached steel frame. The upper part of the main keel of the steel frame is a round hole, and the lower part is an oblong hole.

[0007] Preferably, sponge strips are pasted on the bottom of the mold and the joints of the mold in S1 to prevent leakage of slurry.

[0008] Preferably, the spraying of the outer blades in S6 comprises: keeping the spray gun at 90 degrees and at the same height, injecting the spray gun into the mold with the same pressure, starting from the corner, spraying in a criss-cross manner, with each layer having a thickness of 3-6 mm, to form a plate-like material.

[0009] Preferably, the spray bands overlap by half and each layer is sprayed in alternating directions.

[0010] Compared with the prior art, the invention has the following beneficial effects: the sandwich insulation GRC board, 1. The sandwich insulation GRC board can achieve the purpose of good insulation effect and simple process and environmental protection. In the production process of GRC hanging board, the invention increases the insulation layer construction process, so that the GRC board has insulation effect, avoids the problem of poor insulation effect of GRC board, can effectively improve the insulation effect of GRC board, make the durability and insulation effect of GRC board better, the invention is suitable for factory assembly line processing and production, the process is simple and environmentally friendly, the process flow is simple, the technical measures are easy to master, the molding efficiency is high, the manufactured GRC has good insulation effect, good quality, high strength and strong durability; 2. The sandwich insulation GRC board can achieve the purpose of improving uniformity. In the production process of the GRC hanging board, the present invention sprays cement mortar in a crisscross manner from the corners to avoid the situation where the corners and reinforcing ribs are difficult to spray comprehensively, which can effectively improve the uniformity of the GRC board and make the texture and quality of the GRC board better; 3. The sandwich insulation GRC board can achieve the purpose of ensuring the thermal insulation performance of the wall. During the production process of the GRC hanging board, the present invention places the insulation layer inside the GRC board through the construction process, thereby ensuring the thermal insulation performance of the wall, avoiding the construction of the insulation layer after the on-site GRC board is installed, reducing the on-site insulation construction process, and saving construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention.

[0012] In the figure: 1. Inner blade; 2. Back steel frame; 3. Edge reinforcement ribs; 4. Outer blade; 5. Insulation layer; 6. Insulation layer cutting block; 7. Anchor rod; 8. Adhesive disc. DETAILED DESCRIPTION

[0013] 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.

[0014] See also Figure 1 The present invention provides a technical solution: a sandwich insulation GRC board, comprising an inner blade 1, a back-attached steel frame 2 is fixed to the upper end surface of the inner blade 1, an insulation layer 5 is arranged between the inner blade 1 and the outer blade 4, an insulation layer cutting block 6 is plugged at the top of the insulation layer 5, an anchor rod 7 and a bonding disk 8 are fixed in the insulation layer 5, the anchor rod 7 is welded to the back-attached steel frame 2, and edge reinforcement ribs 3 are fixed to the outer sides of the inner blade 1, the outer blade 4 and the bonding disk 8.

[0015] According to another aspect of the present invention, a process for manufacturing a sandwich insulation GRC panel is provided, comprising the following steps: S1: Clean the mold table and install the mold. The bottom of the mold and the mold joints are pasted with sponge strips to prevent leakage. The allowable error of the mold is: side length ±1mm, diagonal length difference ±3mm. Then determine the position of the anchor rod 7 and the bonding plate 8 according to the drawing, and place a positioning magnet on the edge of the mold to mark the position; S2: Put the thermal insulation layer 5 into the mold, lay out the wire according to the magnet marking position, and then mark the position and size of the bonding disk 8 and the position of the anchor rod 7 on the thermal insulation layer 5 according to the laying-out position; S3: taking out the marked insulation layer 5 and cutting the insulation layer 5 according to the position and size marked on the insulation layer 5 for later use; S4: Apply a release agent to the mold; S5: Stir cement slurry, prepare glass fiber, weigh the mass of cement, sand and water according to the ratio, first add part of the water and sand into the mixing bucket and mix well, then gradually add water and cement, slowly add cement while stirring, after the cement is added, stir for 30-60s to mix well; S6: First spray 2-3mm cement slurry, then spray the GRC outer blade 4, wherein the 2-3mm cement slurry is first sprayed to ensure the smooth surface of the formed GRC board, and spraying the outer blade 4 includes: keeping the spray gun at 90 degrees and at the same height, entering the mold with the same pressure, starting from the corner, spraying crisscross, each layer thickness 3-6mm, to form a plate-like material; S7: Place the cut insulation layer 5, place the anchor rod 7 according to the position of the anchor rod 7 marked in S2, and then spray the bonding disk 8 and the GRC wall panel edge reinforcement rib 3; S8: Use S3 insulation layer cutting block 6 to seal the insulation layer 5 and spray the inner blade 1; S9: Touch and press the surface, smooth and press the edges of the components, and then carry out GRC wall panel curing and demoulding. Among them, GRC concrete curing includes: sealing curing with plastic film or covering curing with plastic film and polyethylene film, until the compressive strength of the component is not less than 12Mpa, demoulding, curing temperature is not less than 15℃, and the plastic film is made of polyvinyl chloride plastic; S10: The anchor rod 7 is welded to the back-attached steel frame 2, and the upper part of the main keel of the steel frame is a round hole, and the lower part is an oblong hole.

[0016] The above-mentioned problems such as drying, evaporation or cracking lead to performance degradation and cracking, improve the strength of the GRC board, and thus extend the service life of the GRC board; the one-time molding method is used for preparation, the process is simple and environmentally friendly, the technical measures are easy to master, the process flow is simple, the molding efficiency is high, and the GRC board produced has good texture, quality and thermal insulation effect, good quality, high strength and strong durability.

[0017] In summary, the sandwich insulation GRC board and its production process achieve the purpose of good insulation effect, simple and environmentally friendly process, improved uniformity and guaranteed wall insulation performance, and meet people's use needs.

[0018] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sandwich insulation GRC panel, comprising an inner leaf plate (1), characterized in that: A back-attached steel frame (2) is fixed to the upper end surface of the inner blade (1), a thermal insulation layer (5) is arranged between the inner blade (1) and the outer blade (4), a thermal insulation layer cutting block (6) is plugged at the top of the thermal insulation layer (5), an anchor rod (7) and a bonding disk (8) are fixed inside the thermal insulation layer (5), the anchor rod (7) and the back-attached steel frame (2) are welded together, and edge reinforcement ribs (3) are fixed to the outer sides of the inner blade (1), the outer blade (4) and the bonding disk (8).

2. A process for manufacturing a sandwich insulation GRC board, applied to the sandwich insulation GRC board according to claim 1, characterized in that: The following steps are involved: S1: Clean the mold table, install the mold, determine the position of the anchor rod (7) and the bonding plate (8) according to the drawing, and place a positioning magnet on the edge of the mold to mark the position; S2: placing the thermal insulation layer (5) into the mold, laying out the wire according to the position marked by the magnet, and then marking the position and size of the bonding disk (8) and the position of the anchor rod (7) on the thermal insulation layer (5) according to the laying out position; S3: taking out the marked insulation layer (5) and cutting the insulation layer (5) according to the position and size marked on the insulation layer (5) for later use; S4: Apply a release agent to the mold; S5: Stir cement slurry, prepare glass fiber, weigh the mass of cement, sand and water according to the ratio, first add part of the water and sand into the mixing bucket and mix well, then gradually add water and cement, slowly add cement while stirring, after the cement is added, stir for 30-60s to mix well; S6: First spray 2-3 mm cement slurry, then spray the GRC outer blade (4); S7: Place the cut insulation layer (5), place the anchor rod (7) according to the position of the anchor rod (7) marked in S2, and then spray the bonding plate (8) and the GRC wall panel edge reinforcement rib (3); S8: using S3 thermal insulation layer cutting block (6) to seal the thermal insulation layer (5) and spraying the inner blade (1); S9: Press and finish the surface, smooth and press the edges of the components, and then carry out GRC wall panel maintenance and demoulding; S10: The anchor rod (7) is welded to the back-attached steel frame (2), and the upper part of the main keel of the steel frame is a round hole, and the lower part is an oblong hole.

3. The manufacturing process of the sandwich insulation GRC board according to claim 2 is characterized in that: The bottom of the mold and the joints of the mold in S1 are pasted with sponge strips to prevent slurry leakage.

4. The manufacturing process of the sandwich insulation GRC board according to claim 2 is characterized in that: The spraying of the outer blade in S6 includes: keeping the spray gun at 90 degrees and at the same height, injecting into the mold with the same pressure, starting from the corner, spraying in a crisscross manner, each layer has a thickness of 3-6mm, forming a plate-like material, the spray bands overlap by half, and each layer is sprayed in alternating directions.

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