A method for producing a fireproof composite board

Abstract

The present invention discloses a method for producing a fireproof composite board, comprising the following steps: S1, preparing aluminum foil and processing the aluminum foil by roller pressing; S2, cutting the aluminum sheet; S3, assembling the aluminum foil into a hollow rectangular body with both ends not sealed by a mechanical arm by bending, and then bonding and fixing the rock wool sheet to the outside; S4, preparing a composite filler, fully screening the composite filler, filling it into a rectangular aluminum foil frame, injecting a colloid into the inside, fully bonding and curing it, sealing both sides of the aluminum foil frame, and then pressurizing it; S5, immersing the pressurized aluminum foil sheet in a cleaning solution for 15-30 minutes, then taking it out for heat treatment, sealing the edges, and then polishing and grinding the edges to complete the processing. The fireproof composite board of the invention uses aluminum material on the outside and is filled with a variety of composite materials on the inside. It is lightweight, and the composite materials used on the inside are low in cost, easy to recycle, and relatively environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of composite board processing, in particular to a production method of a fireproof composite board. Background Art

[0002] Composite panels are generally classified into metal composite panels, wood composite panels, color-coated steel composite panels, and rock wool composite panels. Composite panels are made of layers of different materials with different functions. For example, a three-in-one roofing panel consists of concrete, foam insulation, and a surface waterproofing layer. Sandwich panels are also a type of composite panel.

[0003] Home and office decoration are becoming increasingly popular. Currently, wood or gypsum boards are commonly used for decoration in the market. Wood boards are prone to fire and pose a safety hazard. Some boards are replaced with fireproof composite boards, but most fireproof composite boards do not meet the A1 grade requirement. Some fireproof composite boards meet the A1 grade, but due to the presence of chloride ions, they are prone to halogenation in high-humidity environments, corroding and damaging other decoration materials, affecting the appearance. In addition, they have poor strength, high water absorption, short service life, and high cost. Therefore, how to improve the strength and fireproof performance of fireproof composite boards becomes the primary consideration when preparing fireproof composite boards. To address the above issues, we propose a production method for fireproof composite boards. Summary of the Invention

[0004] The present invention addresses the deficiencies in the background technology and provides a method for producing a fireproof composite board.

[0005] In order to solve the above technical deficiencies, the present invention adopts a modified technical solution, a method for producing a fireproof composite board, S1, preparing an aluminum plate by roller pressing;

[0006] S2, cutting the aluminum plate;

[0007] S3, using a robotic arm to bend the aluminum sheet into a hollow rectangular shape with both ends not closed, and then gluing and fixing the rock wool sheet on the outside;

[0008] S4, preparing a composite filler, fully screening the composite filler, filling it into a rectangular aluminum plate, injecting a colloid into the interior, fully bonding and curing it, sealing both sides of the aluminum plate, and then pressurizing it to form a composite plate;

[0009] S5, soak the composite board after pressurization in a cleaning solution for 15-30 minutes, then take it out for heat treatment, seal the edges and then polish and grind to complete the processing.

[0010] As a further preferred embodiment of the present invention, the composite filler includes 2-8 parts of magnesium sulfate, 6-10 parts of perlite, 8-12 parts of sodium silicate, 5-8 parts of magnesium oxide, 3-6 parts of calcium carbonate, and 6-10 parts of glass fiber.

[0011] As a further preferred embodiment of the present invention, the preparation process of the composite filler includes: grinding: magnesium sulfate, perlite, sodium silicate, magnesium oxide, and calcium carbonate are weighed in proportion, ground in a ball mill, and fully filtered through a 650-mesh sieve; material mixing: the mixture obtained by grinding the glass fiber weighed in proportion is mixed and heated in a high-speed and low-speed mixer; when the mixing temperature is 220-310°C, the material is placed in a low-speed mixer, and the material temperature is cooled and discharged into an extruder; crushing: the mixed material is crushed into powder using a crusher.

[0012] As a further preferred embodiment of the present invention, in step S5, the sealed composite board is sent to a heating furnace for heat treatment. Before the tempering temperature reaches 180°C, the vacuum equipment is started to vacuum the heating furnace to remove the air. When the furnace temperature rises to 320°C, inert argon gas is filled into the furnace, and then the circulating fan is started to heat and temper, and finally it is quickly cooled using liquid nitrogen.

[0013] As a further preferred embodiment of the present invention, in step S5, the cleaning solution includes a mixed solution of sodium hydroxide, sodium sulfate, and sodium nitrate, wherein the concentration of the sodium hydroxide is 0.3 mol / L, the concentration of the sodium sulfate is 0.5 mol / L, and the concentration of the sodium nitrate is 0.4 mol / L.

[0014] As a further preferred embodiment of the present invention, in step S2, the cutting is performed using a cutting machine, and the size after cutting is (10-30 cm) × (5-25 cm).

[0015] As a further preferred embodiment of the present invention, in step S1, the overall processing thickness of the aluminum plate is controlled between 0.6-1.2 mm.

[0016] The beneficial effects achieved by the present invention are: the composite board of the present invention uses aluminum on the outside and is filled with a variety of composite materials on the inside, and is very light as a whole. At the same time, the composite materials inside are made of a variety of low-cost and recyclable materials, the raw material cost is low, and the entire processing method is simple and more environmentally friendly. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0018] The present invention provides a technical solution: a method for producing a fireproof composite board, S1, preparing an aluminum plate by roller pressing to produce the aluminum plate;

[0019] S2, cutting the aluminum plate;

[0020] S3, using a robotic arm to bend the aluminum sheet into a hollow rectangular shape with both ends not closed, and then gluing and fixing the rock wool sheet on the outside;

[0021] S4, preparing a composite filler, fully screening the composite filler, filling it into a rectangular aluminum plate, injecting a colloid into the interior, fully bonding and curing it, sealing both sides of the aluminum plate, and then pressurizing it to form a composite plate;

[0022] S5, soak the composite board after pressurization in a cleaning solution for 15-30 minutes, then take it out for heat treatment, seal the edges and then polish and grind to complete the processing.

[0023] The composite filler comprises 2-8 parts of magnesium sulfate, 6-10 parts of perlite, 8-12 parts of sodium silicate, 5-8 parts of magnesium oxide, 3-6 parts of calcium carbonate and 6-10 parts of glass fiber.

[0024] The preparation process of the composite filler includes the following steps: grinding: magnesium sulfate, perlite, sodium silicate, magnesium oxide, and calcium carbonate are weighed in a proportion, ground in a ball mill, and fully filtered through a 650-mesh screen; material mixing: a mixture of glass fibers weighed in a proportion and ground is mixed and heated in a high-speed and low-speed mixer; when the mixing temperature is 220-310° C., the material is placed in a low-speed mixer; after the material temperature is cooled, the material is discharged and fed into an extruder; and crushing: the mixed material is crushed into powder using a crusher.

[0025] In step S5, the sealed composite board is sent to a heating furnace for heat treatment. Before the tempering temperature reaches 180°C, the vacuum equipment is started to vacuum the heating furnace to remove air. When the furnace temperature rises to 320°C, inert argon gas is filled into the furnace, and then the circulating fan is started to heat and temper. Finally, it is quickly cooled using liquid nitrogen.

[0026] In step S5, the cleaning solution includes a mixed solution of sodium hydroxide, sodium sulfate, and sodium nitrate, wherein the concentration of the sodium hydroxide is 0.3 mol / L, the concentration of the sodium sulfate is 0.5 mol / L, and the concentration of the sodium nitrate is 0.4 mol / L.

[0027] In step S2, cutting is performed using a cutting machine, and the size after cutting is (10-30 cm) × (5-25 cm).

[0028] In step S1, the overall processing thickness of the aluminum plate is controlled between 0.6-1.2 mm.

[0029] Example 1

[0030] To make aluminum sheets, the aluminum sheets are processed by roller pressing, and the overall processing thickness of the aluminum sheets is controlled between 1.2mm; the aluminum sheets are cut; the aluminum sheets are assembled into hollow rectangular bodies by bending with a robotic arm, and the two ends are not closed, and then the rock wool sheets are bonded and fixed to the outside; composite fillers are configured and ground: 10 parts of perlite, 12 parts of sodium silicate, 8 parts of magnesium oxide, and 6 parts of calcium carbonate are weighed according to the ratio, ground in a ball mill, and fully filtered through a 650-mesh sieve. Material mixing: the mixture obtained by grinding 10 parts of glass fiber weighed according to the ratio is mixed and heated in a high-speed and low-speed mixing unit. When the mixing temperature is 310°C, the material is placed in a low-speed mixer, and the material temperature is cooled and discharged into the extruder. Crushing: the mixed material is crushed into powder using a crusher, and the composite filler is fully screened and filled Into the rectangular aluminum plate frame, inject colloid into the inside, fully bond and solidify, and seal both sides of the aluminum plate frame, and then pressurize it; soak the aluminum plate body after pressurization in a cleaning solution for 30 minutes, and the cleaning solution includes a mixed solution of sodium hydroxide, sodium sulfate, and sodium nitrate, wherein the concentration of sodium hydroxide is 0.3 mol / L, the concentration of sodium sulfate is 0.5 mol / L, and the concentration of sodium nitrate is 0.4 mol / L. Then take out the sealed composite board and send it to the heating furnace for heat treatment. Before the tempering temperature reaches 180°C, start the vacuum equipment to vacuum the heating furnace to remove air. When the furnace temperature rises to 320°C, fill in inert argon gas into the furnace, and then start the circulating fan to heat up and temper. Finally, use liquid nitrogen to quickly cool the edge and then polish and grind it to complete the processing.

[0031] Example 2

[0032] To make aluminum sheets, aluminum sheets are processed by roller pressing, and the overall processing thickness of the aluminum sheets is controlled between 0.6mm; the aluminum sheets are cut; the aluminum sheets are assembled into hollow rectangular bodies by bending with a robotic arm, and the two ends are not closed, and then the rock wool sheets are bonded and fixed to the outside; composite fillers are configured and ground: 6 parts of perlite, 8 parts of sodium silicate, 5 parts of magnesium oxide, and 3 parts of calcium carbonate are weighed according to the ratio, ground by a ball mill, and fully filtered through a 650-mesh sieve. Material mixing: the mixture obtained by grinding 6 parts of glass fiber weighed according to the ratio is mixed and heated in a high-speed and low-speed mixing unit. When the mixing temperature is 220°C, the material is placed in a low-speed mixer, and the material temperature is cooled and discharged into the extruder. Crushing: the mixed material is crushed into powder by a crusher, and the composite filler is fully sieved and filled to a length In the square aluminum plate frame, colloid is injected into the interior to fully bond and solidify, and the two sides of the aluminum plate frame are sealed, and then pressurized; the aluminum plate body after pressurization is immersed in a cleaning solution for 15 minutes. The cleaning solution includes a mixed solution of sodium hydroxide, sodium sulfate, and sodium nitrate, wherein the concentration of sodium hydroxide is 0.3 mol / L, the concentration of sodium sulfate is 0.5 mol / L, and the concentration of sodium nitrate is 0.4 mol / L. Then, the sealed composite board is taken out and sent to the heating furnace for heat treatment. Before the tempering temperature reaches 180°C, the vacuum equipment is started to vacuum the heating furnace to remove the air. When the furnace temperature rises to 320°C, inert argon gas is filled into the furnace, and then the circulating fan is started to heat and temper. Finally, liquid nitrogen is used for rapid cooling and edge sealing, and then polishing and grinding are performed to complete the processing.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as illustrative and non-restrictive in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included therein.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for producing a fireproof composite board, characterized in that: Including the following production methods, S1, making aluminum plates by roller pressing to produce aluminum plates; S2, cutting the aluminum plate; S3, using a robotic arm to bend the aluminum sheet into a hollow rectangular shape with both ends not closed, and then gluing and fixing the rock wool sheet on the outside; S4, preparing a composite filler, fully screening the composite filler, filling it into a rectangular aluminum plate, injecting a colloid into the interior, fully bonding and curing it, sealing both sides of the aluminum plate, and then pressurizing it to form a composite plate; S5, soaking the composite board after pressurization in a cleaning solution for 15-30 minutes, then taking it out for heat treatment, edge sealing and polishing, and the processing is completed; The composite filler comprises 2-8 parts of magnesium sulfate, 6-10 parts of perlite, 8-12 parts of sodium silicate, 5-8 parts of magnesium oxide, 3-6 parts of calcium carbonate, and 6-10 parts of glass fiber; The preparation process of the composite filler includes the following steps: grinding: magnesium sulfate, perlite, sodium silicate, magnesium oxide, and calcium carbonate are weighed in a proportion, ground in a ball mill, and fully filtered through a 650-mesh screen; material mixing: a mixture of glass fibers weighed in a proportion is mixed and heated in a high-speed and low-speed mixer; when the mixing temperature is 220-310° C., the material is placed in a low-speed mixer, cooled, discharged, and fed into an extruder; and crushing: the mixed material is crushed into powder using a crusher; In step S5, the sealed composite board is sent to a heating furnace for heat treatment. Before the tempering temperature reaches 180°C, the vacuum equipment is started to vacuum the heating furnace to remove the air. When the furnace temperature rises to 320°C, inert argon gas is filled into the furnace, and then the circulating fan is started to heat and temper, and finally it is quickly cooled using liquid nitrogen.

2. The method for producing a fireproof composite board according to claim 1, characterized in that: In step S5, the cleaning solution includes a mixed solution of sodium hydroxide, sodium sulfate, and sodium nitrate, wherein the concentration of the sodium hydroxide is 0.3 mol / L, the concentration of the sodium sulfate is 0.5 mol / L, and the concentration of the sodium nitrate is 0.4 mol / L.

3. The method for producing a fireproof composite board according to claim 1, characterized in that: In step S2, cutting is performed using a cutting machine, and the size after cutting is (10-30 cm) × (5-25 cm).

4. The method for producing a fireproof composite board according to claim 1, characterized in that: In step S1, the overall processing thickness of the aluminum plate is controlled between 0.6-1.2 mm.