Sandwich insulation GRC board and its manufacturing process

Abstract

The present invention relates to the technical field of GRC exterior wall panel production. The present invention discloses a sandwich insulation GRC panel and a production process thereof, comprising an inner blade, wherein an insulation layer is disposed between the inner blade and the outer blade. The production process comprises: cleaning a mold platform and installing a mold; determining the positions of anchor rods and bonding disks, and placing magnets to mark the positions; placing the insulation layer into the mold and marking the positions and sizes of the bonding disks and anchor rods; removing the insulation layer and cutting the insulation layer; applying a mold release agent; stirring cement slurry; spraying the outer blade; placing the cut insulation layer and anchor rods; spraying the bonding disks and edge reinforcement ribs; placing the insulation layer cut pieces and spraying the inner blade; pressing and finishing the surface; curing; demolding; and welding a back-attached steel frame. The present invention is suitable for factory-scale assembly line processing and production, and has a simple and environmentally friendly process, a simple process flow, easy-to-master technical measures, high molding efficiency, and good thermal insulation effect, high quality, high strength, and strong durability of the GRC produced.

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 high elastic modulus glass fiber in cement matrix. GRC building exterior wall decorative panels are mainly composed of GRC ribbed panels and back-attached steel frames. The ribbed panels are non-load-bearing exterior decorative components of the building, 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 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 manufacture 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 manufacturing process to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide a sandwich insulation GRC panel and a manufacturing process thereof, so as to solve the problem proposed in the above background art that the design of the existing GRC panel is only to spray a layer of GRC panel or place rock wool between the GRC panel and the backing steel frame for insulation, which will greatly reduce the insulation effect of the GRC panel and increase the construction site process. In addition, 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 requirements for node design are high, the node design is large, and the indoor space and practices are affected, which can no longer meet the needs of current factory production and on-site construction.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a sandwich insulation GRC panel and a manufacturing process thereof, comprising an inner blade, wherein a back-attached steel frame is fixed to the upper end surface of the inner blade, an insulation layer is provided between the inner blade and the outer blade, an insulation layer cutting block is plugged into the top of the insulation layer, an anchor rod and an adhesive disk are fixed in the insulation layer, the anchor rod is welded to the back-attached steel frame, and edge reinforcement ribs are fixed to the outer sides of the inner blade, the outer blade and the adhesive disk.

[0006] The production process of sandwich insulation GRC panels includes the following steps:

[0007] 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;

[0008] S2: Place the insulation layer into the mold, lay out the lines according to the magnet marking positions, and then mark the position and size of the bonding disc and the position of the anchor rod on the insulation layer according to the lay-out positions;

[0009] S3: Take out the marked insulation layer and cut the insulation layer according to the position and size marked on the insulation layer for later use;

[0010] S4: Apply release agent to the mold;

[0011] S5: Stir cement slurry and 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 30-60 seconds to mix evenly.

[0012] S6: First spray 2-3mm cement slurry, then spray the GRC outer blade;

[0013] 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;

[0014] S8: Use S3 insulation layer cut pieces to seal the insulation layer and spray the inner blade;

[0015] S9: Touch and press the surface, smooth and press the edges of the components, then carry out GRC wall panel curing and demoulding;

[0016] 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.

[0017] Preferably, sponge strips are pasted on the bottom of the mold and the joints of the mold in S1 to prevent leakage of slurry.

[0018] Preferably, the spraying of outer blades in S6 includes: 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 crisscross pattern, with each layer having a thickness of 3-6 mm, to form a plate-shaped material.

[0019] Preferably, the spray bands overlap by half and each layer is sprayed in alternating directions.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the sandwich insulation GRC board,

[0021] 1. The sandwich insulation GRC board can achieve the purpose of good insulation effect and simple and environmentally friendly process. In the production process of GRC hanging board, the present invention adds a thermal insulation layer construction process, so that the GRC board has insulation effect, avoids the problem of poor thermal insulation effect of GRC board, can effectively improve the thermal insulation effect of GRC board, and make the durability and thermal insulation effect of GRC board better. The present invention is suitable for factory assembly line processing and production, with simple and environmentally friendly process, simple process flow, easy to master technical measures, high molding efficiency, and the produced GRC has good thermal insulation effect, good quality, high strength and strong durability.

[0022] 2. The sandwich insulation GRC board can achieve the purpose of improving uniformity. During the production process of the GRC hanging board, the present invention sprays cement mortar in a crisscross pattern starting from the corners, avoiding the situation where it is difficult to fully spray the corners and reinforcing ribs, which can effectively improve the uniformity of the GRC board and make the texture and quality of the GRC board better.

[0023] 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

[0024] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention.

[0025] In the figure: 1. Inner blade; 2. Back steel frame; 3. Edge reinforcement ribs; 4. Outer blade; 5. Insulation layer; 6. Insulation layer cutting piece; 7. Anchor rod; 8. Adhesive plate. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1 The present invention provides a technical solution: a sandwich insulation GRC panel, comprising an inner blade 1, a back-attached steel frame 2 being fixed to the upper end surface of the inner blade 1, an insulation layer 5 being arranged between the inner blade 1 and the outer blade 4, an insulation layer cutting block 6 being plugged into the top of the insulation layer 5, an anchor rod 7 and an adhesive disk 8 being fixed in the insulation layer 5, the anchor rod 7 being welded to the back-attached steel frame 2, and edge reinforcement ribs 3 being fixed to the outer sides of the inner blade 1, the outer blade 4 and the adhesive disk 8.

[0028] According to another aspect of the present invention, a process for manufacturing a sandwich insulation GRC panel is provided, comprising the following steps:

[0029] S1: Clean the mold table and install the mold. Sponge strips are pasted on the bottom of the mold and the mold joints to prevent slurry leakage. The mold tolerance 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 positioning magnets on the edge of the mold to mark the position;

[0030] S2: Place the insulation layer 5 into the mold, lay out the lines according to the magnet marking positions, and then mark the position and size of the bonding disc 8 and the position of the anchor rod 7 on the insulation layer 5 according to the lay-out positions;

[0031] 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;

[0032] S4: Apply release agent to the mold;

[0033] S5: Stir cement slurry and 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 30-60 seconds to mix evenly.

[0034] S6: First spray 2-3mm cement slurry, then spray the GRC outer blade 4, wherein the first spray 2-3mm cement slurry to ensure the smooth surface of the formed GRC board. 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 and horizontally, with each layer of 3-6mm thickness to form a plate-shaped material;

[0035] S7: Place the cut insulation layer 5, place the anchor rods 7 according to the positions marked in S2, and then spray the bonding discs 8 and the GRC wall panel edge reinforcement ribs 3;

[0036] S8: Use S3 insulation layer cutting block 6 to seal the insulation layer 5 and spray the inner blade 1;

[0037] S9: Finish the surface by pressing and smoothing the edges of the components, then proceed with GRC wall panel curing and demoulding. GRC concrete curing includes: sealing and curing with plastic film or covering and curing with plastic film and polyethylene film until the compressive strength of the component is not less than 12Mpa, and then demoulding. The curing temperature is not less than 15℃, and the plastic film is made of polyvinyl chloride plastic.

[0038] S10: The anchor rod 7 is welded to the back-attached steel frame 2. The upper part of the main keel of the steel frame is a round hole, and the lower part is an oblong hole.

[0039] The above-mentioned problems such as drying, evaporation or cracking lead to performance degradation and cracking, and improve the strength of GRC boards, thereby extending the service life of GRC boards; 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 boards produced have good texture, quality and thermal insulation effect, good quality, high strength and strong durability.

[0040] 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 usage needs.

[0041] 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 scope of protection of the present invention.

Claims

1. A manufacturing process for a sandwich insulation GRC board, wherein the sandwich insulation GRC board comprises an inner leaf plate (1), characterized in that: The upper end surface of the inner blade (1) is fixed with a back-attached steel frame (2), an insulation layer (5) is provided between the inner blade (1) and the outer blade (4), the top of the insulation layer (5) is plugged with an insulation layer cutting block (6), an anchor rod (7) and a bonding disk (8) are fixed in the 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); The manufacturing process of the sandwich insulation GRC board includes the following steps: 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 the 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 lines according to the magnet marking positions, and then marking the position and size of the bonding disc (8) and the position of the anchor rod (7) on the thermal insulation layer (5) according to the laying-out positions; 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 release agent to the mold; S5: Stir cement slurry and 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 30-60 seconds to mix evenly. S6: First spray 2-3mm cement slurry, then spray the GRC outer blade (4); the spraying of the outer blade in S6 includes: keeping the spray gun at 90 degrees and at the same height, injecting the mold with the same pressure, starting from the corner, spraying in a crisscross pattern, with each layer of 3-6mm thickness, to form a plate-like material, with the spray bands overlapping by half, and spraying in alternating directions for each layer; S7: Place the cut insulation layer (5), place the anchor rods (7) according to the positions of the anchor rods (7) marked in S2, and then spray the bonding discs (8) and the GRC wall panel edge reinforcement ribs (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, then carry out GRC wall panel curing 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.

2. The manufacturing process of the sandwich insulation GRC board according to claim 1 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.

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