JP2002144468A - Composite sheet, method for manufacturing the same and panel equipped with composite sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite sheet capable of easily performing the dehydration curing of an inorganic adhesive and capable of being further enhanced in non-combustibility, sound insulating properties, heat resistance, durability, lightweight properties, reliability and productivity, method for manufacturing the same and a panel equipped with the composite sheet. SOLUTION: The composite sheet 100 is equipped with a plate-shaped inorganic bonding body 10 containing a metal phosphate or an alkali metal silicate type inorganic adhesive 11 and inorganic particles 12 and first and second air permeable aluminum sheets 20a and 20b fixed on both surfaces of the inorganic bonding body 10. The metal phosphate or an alkali metal silicate type inorganic adhesive 11 and the inorganic particles 12 are mixed to form a mixture which is, in turn, arranged between the first and second aluminum sheets 20a and 20b to manufacture a laminate and the laminate is heated under pressure not only to cure the mixture but also to fix the first and second aluminum sheets 20a and 20b to the mixture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a composite board, a method of manufacturing the same, and a panel provided with the same, and more particularly, to an elevator cab panel, a floor, a landing door and a cab door, and a building. The present invention relates to a composite plate used for interior / exterior panels for vehicles, panels for vehicles, panels for ships, panels for aircraft, floor materials and the like, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, for example, in Japanese Patent No. 2634508, a mixture of stainless steel powder, melamine resin and ceramic powder is used as an elevator molding plate between two aluminum thin plates. Are disclosed. In such a conventional molded plate for an elevator, since the inclusions between the metal thin plates such as aluminum are mainly made of a non-combustible material, they are excellent in heat resistance and fire resistance, and are lightweight. But it is excellent. However, as a matrix for molding non-combustible metal powder and ceramic powder,
Since a synthetic resin such as a melamine resin is used in an amount of about 10 to 20%, there is a limit in improving the heat resistance and the fire resistance of the molded plate for an elevator. On the other hand,
There is a tendency that higher levels of heat resistance and fire resistance are required for molded plates for elevators. In order to meet this demand, it has been necessary to further improve the heat resistance and fire resistance of a composite plate used for a molded plate for an elevator or the like.

[0003] Japanese Patent Application Laid-Open No. 11-300877 discloses a plate-like inorganic binder containing a metal phosphate-based or alkali metal silicate-based inorganic adhesive as a water-soluble adhesive. First and second non-combustible aluminum alloy sheets or the like adhered to both surfaces of the above-mentioned inorganic binder.
A metal composite plate provided with the above metal plate has been proposed. The front and back surfaces of this metal composite plate are made of a metal plate such as an aluminum alloy thin plate, and at least one of the aluminum alloy thin plates has a through hole for drainage. In the manufacturing process of the metal composite plate, the water contained in the water-soluble adhesive was dehydrated from the through-holes of the aluminum alloy thin plate in order to fix the inorganic mixture interposed between the two aluminum alloy thin plates. For this reason, such a metal composite plate is excellent in heat resistance and fire resistance, that is, incombustibility, but a through hole for dehydration is formed in an aluminum alloy thin plate in order to fix and harden the plate-shaped inorganic binder. It was necessary to provide many. There is a possibility that the inorganic adhesive or the inorganic granular material, which is the content of the plate-like inorganic binder, may leak from these through holes. Furthermore, after the inorganic binder has been fixed and cured, it is necessary to close the through-holes in terms of the design of the outer surface of the metal composite plate and the prevention of contamination. Even if the through-hole is closed, the portion becomes a starting point, and there is a possibility that cracks or deformation may occur during use, and the metal composite plate has low reliability.

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide noncombustibility, soundproofness, and heat resistance required for the performance of composite panels such as elevator panels, building panels, and vehicle panels. An object of the present invention is to provide a structure of a composite plate capable of further improving performance, durability, lightness, reliability, and productivity, a method of manufacturing the same, and a panel using the same.

[0005]

SUMMARY OF THE INVENTION A composite plate according to the present invention comprises: a plate containing a metal phosphate-based or alkali metal silicate-based inorganic adhesive and inorganic particles; And a metal plate having air permeability and containing aluminum fixed on at least a part of the metal plate.

In the composite plate constructed as described above, it is necessary to dehydrate to cure the water-soluble inorganic adhesive, but the metal plate fixed to the plate containing the adhesive is required. Since it has air permeability, it can be easily dehydrated. It is not necessary to provide a large number of through holes in the metal plate for dehydration. Therefore, it is possible to prevent the possibility that the adhesive or the inorganic granular material leaks through the metal plate. Further, since no through-hole is formed in the metal plate, it is possible to prevent the risk of cracking or deformation during use of the composite plate, and it is possible to enhance the reliability of the composite plate. Further, since it is not necessary to form a through hole in the metal plate, the productivity of the composite plate can be improved.

[0007] Since all the materials constituting the composite plate of the present invention are inorganic materials, they are excellent in nonflammability and can improve the durability of the composite plate. Further, since the composite board of the present invention does not generate organic matter at the time of manufacture, use as a product, or at the time of disposal, it is possible to provide a composite board that is environmentally friendly in terms of environmental friendliness.

[0008] Preferably, in the composite plate of the present invention,
The plate has one surface and the other surface, and the metal plate has a first metal plate fixed on one surface of the plate and a first metal plate fixed on the other surface of the plate. 2 metal plates. More preferably, at least one of the outer surfaces of the first and second metal plates is subjected to a sealing treatment. Thereby, the composite board of the present invention can be used as a building exterior panel.

Preferably, at least a part of the outer surface of the composite plate of the present invention is colored. Thereby, a composite board can be used as a structural panel with improved design.

It is preferable that the surface of the metal plate fixed to the plate is subjected to a rustproofing treatment. Further, it is preferable that a weather-resistant coating is formed on the surface opposite to the surface of the metal plate fixed to the plate-like body.

[0011] In the composite plate of the present invention, the metal plate preferably has an air permeability coefficient of 10 ^-8 cm / s or more and 10 ^-7 cm / s or less. The water permeability of the metal plate is 10 ^-9 cm / s or more and 10
^It is preferably at most ^-8 cm / s.

In the composite plate of the present invention, the metal plate preferably includes a continuous phase containing aluminum and an inorganic foam dispersed in the continuous phase. By configuring the metal plate of the composite plate in this way, the lightness of the composite plate can be further improved, and the heat insulation, soundproofing, and vibration-proofing properties can also be improved.

[0013] In the composite plate of the present invention, the metal plate preferably contains 30% by volume to 70% by volume of the inorganic foam. It is preferable to use a shirasu balloon or a glass balloon as the inorganic foam. Further, the metal plate preferably further includes a fibrous body.

In the composite plate of the present invention, the inorganic particles contained in the plate preferably contain at least one selected from the group consisting of aluminum particles, ceramic balloons, shirasu balloons and glass balloons. The inorganic particles are preferably in the form of hollow particles. As a result, the overall weight of the composite board can be further reduced.

[0015] In the composite plate of the present invention, the plate-like body includes an inorganic molded body containing an inorganic adhesive and an inorganic granular body, and has been formed and cured in advance. The metal plate has an inorganic adhesive on at least a part of the inorganic molded body. It is preferably fixed via an agent. By pre-forming the inorganic molded body in this way, since the shrinkage of the overall thickness after joining the metal plate to the inorganic molded body can be reduced, the product dimensions of the composite plate can be stabilized. it can.

In the composite plate of the present invention, the plate-like body preferably contains bubbles. As a result, the overall weight of the composite board can be further reduced.

In the composite plate of the present invention, the plate preferably contains inorganic fibers. Thereby, the mechanical strength of the composite plate can be further improved.

The method for producing a composite plate according to the present invention comprises:
(A) a step of mixing a metal phosphate-based or alkali metal silicate-based inorganic adhesive with an inorganic particulate material to form a mixture; and (b) a first gas-permeable and aluminum-containing material. (C) heating the laminate while applying pressure to the laminate to cure the mixture and to form a first and a second mixture on the mixture. Fixing the second metal plate.

Further, the method for producing a composite board according to another aspect of the present invention comprises: (d) mixing a metal phosphate-based or alkali metal silicate-based inorganic adhesive with an inorganic particulate material; A step of preparing a body; (e) a step of forming and curing the mixture in advance to form a plate-like inorganic molded body; and (f) a first and second metal having air permeability and containing aluminum. (G) fixing the first and second metal plates to the inorganic molded body by heating the laminate while applying pressure to the inorganic molded body; Is provided.

It is preferable that the above-mentioned method for producing two composite plates further comprises a step of subjecting at least one of the outer surfaces of the first and second metal plates to a sealing treatment.

An elevator panel or a vehicle panel according to the present invention includes a composite plate having the above-described features.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a sectional view of a composite plate according to Embodiment 1 of the present invention. As shown in FIG. 1, the composite plate 100 is composed of a plate-like inorganic binder 10 and first and second air-permeable aluminum plates 20 fixed to both surfaces thereof.
a and 20b. In the plate-like inorganic binder 10, many inorganic particles 12 are mixed with the inorganic adhesive 11. Both sides of the inorganic binder 10 are provided with a nonflammable first
And the second air-permeable aluminum plates 20 a and 20 b are joined by the adhesive force of the inorganic adhesive 11. As the inorganic adhesive 11, a metal phosphate-based or alkali metal silicate-based adhesive is used. Specifically, for example, an inorganic adhesive 12 is mixed with an aqueous solution of a metal phosphate or an alkali metal silicate, and further added with a curing agent or the like, heated to a predetermined temperature, and dehydrated. 11
Is cured, and the inorganic binder 10 formed into a plate shape is obtained. During this curing, the first and second permeable aluminum plates 2
Oa and 20b are adhered to both surfaces of the inorganic binder 10.

When an aqueous solution of a metal phosphate is used, a metal oxide, a metal hydroxide, a silicate or a borate is used as a curing agent. When an aqueous solution of an alkali metal silicate is used, a metal oxide, a metal hydroxide, a silicide, a silicofluoride, a phosphate, a borate, or the like is used as a curing agent. More specific examples include a first aluminum phosphate aqueous solution or a first aluminum phosphate aqueous solution.
As a curing agent when an aqueous solution of magnesium phosphate is used, Al (OH) ₃ (aluminum hydrate), CaO · S
iO ₂ (wollastonite), 2ZnO · SiCa (willemite), CaO · 2Al ₂ O ₃ (aluminum-calcium composite oxide) and the like are used. Inorganic adhesive 1
Is cured by heating without adding a curing agent as described above, but by using a curing agent, the curing temperature can be lowered or the water resistance can be improved.

On the other hand, as the inorganic particles 12 contained in the inorganic binder 10, for example, aluminum particles, ceramic balloons, shirasu balloons (hollow volcanic ash of Kirishima volcano), glass balloons, or a mixture thereof are used. The mixing ratio of the inorganic granular material 12 is about 30 to 70% by mass with respect to the cured inorganic binder 10. The average diameter of the inorganic granular material 12 is about 0.1 to 10 mm. The thickness of the inorganic binder 10 is usually 10 to 150
The thickness is preferably about mm, and the size other than the thickness is appropriately designed depending on the purpose of use of the composite plate.

Further, as the first and second air-permeable aluminum plates 20a and 20b, as in the air-permeable aluminum plate 20 shown in FIG. 2, a continuous phase 21 made of aluminum or an aluminum alloy has a lower specific gravity than aluminum. What disperse | distributed the inorganic foam 22 is used. The thickness of the air-permeable aluminum plate used in the composite plate of the present invention is suitably from 1 to 50 mm, and the size other than the thickness is appropriately designed according to the panel rigidity and the purpose of use of the composite plate. The permeability coefficient of the breathable aluminum plate is 10 ^-7 to 1
0 ^-8 cm / s and the water permeability are preferably 10 ^-8 to 10 ^-9 cm / s. If the air permeability coefficient or the water permeability coefficient is less than the above lower limit, it is difficult to dehydrate and evaporate the water contained in the inorganic adhesive in a short time. On the other hand, when the air permeability coefficient or the water permeability coefficient exceeds the above upper limit, there is a possibility that a long time is required for a sealing treatment described later or the sealing is insufficient.

The air permeability coefficient is determined by setting the loading pressure to 4 kgf / cm ²
And the dry air is allowed to permeate from the upper surface of the specimen, and when the permeation flow rate from the lower surface reaches a steady state, it can be calculated by the following equation.

[0028] In _{Kg = (2LP 2 γ A /} (P 1 2 -P 2 2)) · (Q / A) ... (1) above formula, Kg: permeability coefficient (m / s), L: Test Body thickness (m), γ _A : Unit volume mass of dry air (kg
/ M ³ ), P ₁ : Loading pressure (kgf / m ² ), P ₂ : Permeation side pressure (kgf / m ² ), Q: Flow rate (m ³ / s)), A: Air permeability area (m ² ) It is.

Further, the hydraulic conductivity is 1 unit from the upper surface of the specimen.
Water can be injected at a water pressure of 5 kgf / cm ² , and can be calculated from the outflow amount when the amount of leached water from the lower surface becomes constant by the following formula.

Kw = ρ · (L / P) · (Q / A) (2) In the above equation, Kw: permeability coefficient (cm / s), ρ:
Unit volume mass of water (kg / cm ³ ), L: thickness of test specimen (cm), P: water pressure (kg / cm ² ), Q: outflow (c)
m ³ / s), A: cross-sectional area (cm ² ) of the specimen.

Examples of the inorganic foam 22 contained in the air-permeable aluminum plate 20 include a shirasu balloon made of calcined shirasu of volcanic ash and made into a fine hollow body; Balloons obtained by pulverizing obsidian, perlite, pine stone, and the like, and baking and foaming can be used. The inorganic foam 22 is shown in FIG.
Or a hollow body including a plurality of closed cells 22a as shown in FIG. The particle size of the inorganic foam 22 is 0.1 to 5.0 mm, preferably 0.3 to 3.0 mm. If the particle size is smaller than 0.1 mm, the gap between the inorganic foams becomes very small, and the molten aluminum becomes difficult to penetrate, so that a continuous phase cannot be formed. On the other hand, if the above-mentioned particle size is larger than 5.0 mm, the strength of the inorganic foam becomes weak, and it breaks while the molten aluminum permeates.

In addition to such an inorganic foam 22, a fibrous body 23 having a specific gravity smaller than that of aluminum may be dispersed in the continuous phase 21, as shown in FIG. Fibrous body 23
For example, high-strength glass fiber, carbon fiber, or aramid fiber is preferable. Further, the fibrous body 23 may be a short fiber or a long fiber.

Inorganic foam 2 in air-permeable aluminum plate
The content of 2 is preferably set to 30 to 70% by volume, and within this range, good air permeability can be secured. That is, at the interface between the inorganic foam and the continuous phase of aluminum or aluminum alloy as the matrix, there is a slight gap that allows water vapor to pass.
By arranging a large number of inorganic foams three-dimensionally, air permeability suitable for the present invention can be secured between the front and back of the air-permeable aluminum plate. It is considered that this small gap is generated during solidification of the matrix as a continuous phase of aluminum or aluminum alloy. If the content of the inorganic foam is less than 30% by volume, it is difficult to secure sufficient air permeability of the aluminum plate, which is not preferable. On the other hand, when the content of the inorganic foam exceeds 70% by volume, it is difficult to form a continuous phase due to an insufficient amount of aluminum or aluminum alloy, and a desired strength may not be obtained.
The method for producing such a breathable aluminum plate is not particularly limited.
It is preferable to use the method described in JP 193075.

In FIG. 1, the outer surfaces of the first and second air-permeable aluminum plates 20a and 20b are subjected to a surface alumite mirror finish, a color paint finish, a surface alumite color paint finish, a coating or the like as required. . In the case where a corrosive inorganic adhesive 11 such as a first aluminum phosphate is used, for example, the inorganic binder 10 of the first and second permeable aluminum plates 20a and 20b is used.
Rust prevention such as alumite processing or plating processing is performed on the surface in contact with the surface.

Further, as shown in FIG. 5, a corrosion-resistant and weather-resistant film 24 may be formed on the outer surface of the continuous phase 21.
As the corrosion-resistant and weather-resistant coating 24, a coating formed by mixing at least one of metal zinc flakes and aluminum flakes with a solution mainly composed of chromic anhydride and glycol and applying the mixture, metal zinc flakes and aluminum flakes A coating film of a mixture of at least one of other inorganic fillers and a metal oxide polymer, a coating film of an inorganic filler and a metal oxide polymer, a coating film of an inorganic filler and a metal oxide polymer and an organic polymer, A coating film comprising an inorganic filler and at least one of metal salts of silver, copper, and zinc and a metal oxide-based polymer may be used. Here, the metal oxide-based polymer refers to a polymer of a metal oxide such as silicon (Si), aluminum (Al), titanium (Ti), and zirconium (Zr) and oxygen of a metal oxide to a metal such as silicon. It refers to an intermetallic compound with an alkali metal or a polymer substituted with an alkyl group. Also,
The organic polymer refers to a general resin such as an acrylic resin, an epoxy resin, a urethane resin, and an amino resin. Further, the inorganic filler is an inorganic pigment, a particulate or fibrous metal other than the pigment, a fiber or the like, and an oxide, carbide, or nitride thereof, or a hydrolyzate of a metal alkoxide. Specifically, as the material of the inorganic filler, nickel, copper, stainless steel, titanium oxide, aluminum oxide, chromium oxide, sillimite, synthetic mullite, mica, potassium titanate, iron oxide, manganese oxide, silicon carbide, nitrided Silicon, zirconia silicate, copper oxide, tin oxide,
Antimony oxide and the like can be given.

The average particle size of the metal zinc flakes, aluminum flakes, inorganic fillers, metal salts of silver, copper, and zinc (collectively referred to as fillers) is from 0.01 to 0.01.
It is about 10 μm, preferably about 0.02 to 2 μm. If the average particle size of the filler is smaller than 0.01 μm, the effect of corrosion resistance or weather resistance of the coating is poor, and if it is larger than 10 μm, it is difficult to ensure uniformity of the coating.

The proportion of the filler in the composition is 1 to 60 parts by weight, preferably 10 to 50 parts by weight. When the content of the filler is less than 1 part by weight, the function of the coating film obtained by reducing the amount of the filler becomes too low, and when it exceeds 60 parts by weight, the viscosity of the composition increases and the binder is relatively used as a binder. The ratio of a certain metal oxide-based polymer or the like decreases, and the adhesion of the obtained coating to the aluminum plate deteriorates.
Further, the hardness is not sufficiently improved, which is not preferable.

The thickness of the weather-resistant coating 24 is preferably 5 μm or more. If the thickness of the weather-resistant coating 24 is less than 5 μm, sufficient corrosion resistance and weather resistance cannot be obtained. The upper limit of the thickness of the weather-resistant coating 24 is about 100 μm. Even if the thickness of the weather-resistant coating 24 is increased to 100 μm or more, further improvement in the effect in terms of corrosion resistance and weather resistance cannot be expected. As described above, by adding a metal salt of silver, copper, or zinc to the filler, antibacterial properties can be imparted to the coating in addition to corrosion resistance and weather resistance.

Next, an example of a method of manufacturing a composite board according to one embodiment of the present invention will be described. First, aluminum granules are mixed with the first aqueous solution of aluminum phosphate, and a curing agent is further added.
By heating to a temperature of ° C. and drying to a certain extent, a sheet-shaped unformed product having adhesiveness is produced. Next, the first and second permeable aluminum plates 20a and 20b are arranged on both surfaces of the unformed product.

The thus obtained laminate is molded under pressure and cured at a temperature of 120 to 200 ° C.
As a result, moisture is released from the air-permeable aluminum plate, dehydration and hardening of the inorganic adhesive 11 further proceeds, and the first and second air-permeable aluminum plates 20 a
And 20b are firmly bonded. Thereafter, the entire laminate is cooled to complete the composite board.

In such a composite plate, the first and second air-permeable aluminum plates 20a and 20b can be firmly bonded to both surfaces of the inorganic binder 10 without using an organic material. For this reason, the heat resistance and fire resistance of the composite plate, that is, the nonflammability, can be significantly improved. In addition, it is possible to prevent the generation of an organic gas during the heating and pressurizing in the production process of the composite plate. Further, the life of the composite plate can be extended by preventing the composite plate from aging. Further, the soundproofing property and mechanical strength of the composite board can be improved.

In the above composite plate, the inorganic binder 10
Since the inorganic granular material 12 is mixed in the, the weight and weight of the entire composite plate can be reduced by appropriately selecting the type and the mixing ratio of the inorganic granular material 12, and the entire composite plate can be formed at low cost. In addition, the shrinkage of the inorganic binder 10 due to dehydration hardening can be reduced.

Further, the air-permeable aluminum plates 20a and 20a
By using Ob, the dehydration and hardening of the inorganic adhesive 11 can be easily and smoothly progressed without causing the inorganic adhesive 11 and the inorganic granular material 12 to flow out as contents of the inorganic binder 10. This makes it possible to easily manufacture large panels such as interior and exterior panels for buildings using the composite plate of the present invention.

In the first embodiment, the first and second air-permeable aluminum plates 20 are provided on both surfaces of the inorganic binder 10.
Although “a” and “20b” are provided, it is not always necessary to provide them on both sides of the inorganic binder 10, and a breathable aluminum plate may be provided on one side or at least a part of the inorganic binder 10.

(Embodiment 2) As shown in FIG. 6, as the inorganic granular material 12 mixed with the inorganic binder 10, a particulate ceramic balloon having a hollow 12a, a shirasu balloon, or the like may be used. By doing this,
The overall weight of the composite board 100 can be further reduced.

(Embodiment 3) FIG. 7 is a sectional view of a composite plate according to Embodiment 3 of the present invention. As shown in FIG. 7, the inorganic particulate matter 12 is mixed with an aqueous solution of a metal phosphate or an aqueous solution of an alkali metal silicate, and further, a curing agent and a foaming material are added, and the inorganic binder 10 is cured by heating. . In this manner, a number of bubbles 13 made of a foam material are formed inside the inorganic binder 10. Thus, the overall weight of the composite board 100 can be further reduced.

(Embodiment 4) FIG. 8 is a sectional view of a composite plate according to Embodiment 4 of the present invention. As shown in FIG. 8, the plate-shaped inorganic molded body 10a has an inorganic adhesive 11 and an inorganic granular material 12, and is molded and hardened in a predetermined shape in advance. An inorganic adhesive 1 is applied to both sides of the inorganic molded body 10a.
By arranging 1a, an inorganic binder is constituted. First and second permeable aluminum plates 20a are provided by inorganic adhesives 11a disposed on both sides of inorganic molded body 10a.
And 20b are bonded to the inorganic binder.

In the composite board 100 configured as described above,
Since the inorganic molded body 10a can be molded in advance, the shrinkage of the overall thickness after joining the breathable aluminum plates 20a and 20b can be reduced, and the final product dimensions of the composite plate can be stabilized. Can be done.

(Embodiment 5) FIG. 9 is a sectional view of a composite plate according to Embodiment 5 of the present invention. As shown in FIG. 9, the inorganic binder 10 includes an inorganic adhesive 11, an inorganic granular material 12, and an inorganic fiber 14. Glass fibers or the like are used as the inorganic fibers 14. In the composite plate 100 configured as described above, since the inorganic fibers 14 are included in the inorganic binder 10, the mechanical strength of the composite can be further improved.

The inorganic fibers 14 are simply the inorganic binder 1
0, or may be mixed by a method that impregnates the inorganic felt 11 with the inorganic felt.

(Embodiment 6) It is preferable to perform a sealing treatment on the outer surface of the composite plate of the present invention from the viewpoint of design and prevention of contamination. As the sealing treatment, for example, buffing is industrially low cost and simple. As a specific embodiment, as shown in FIG.
The sealing process is performed by applying pressure by the rotating brush 50 made of metal. The sealing process is performed by so-called buffing. By such buffing, the permeable aluminum plate 2
The outer surface of Oa is polished and deformed to form a sealing layer 25 for closing the ventilation part. As a result, the surface of the composite plate is covered with an aluminum film, and a surface alumite mirror surface finish, a color paint finish, a surface alumite color paint finish, a coating, and the like are applied thereon as necessary.

(Embodiment 7) FIG. 11 is a sectional view of a cab panel of an elevator using the composite plate of the present invention. As shown in FIG. 11, a reinforcing member 20 made of a noncombustible metal is provided on the back surface of the composite plate 100 formed into a predetermined shape.
0 is firmly bonded via the inorganic adhesive 201. The inorganic adhesive 201 used here is the same as that used in the first to fifth embodiments.

(Embodiment 8) FIG. 12 is a sectional view of a vehicle panel using the composite plate of the present invention. As shown in FIG. 12, composite plates 10 each having a predetermined shape are formed.
A plurality of reinforcing members 300a and 300b made of a noncombustible metal are interposed between Oa and 100b, whereby a space 400 is formed between the composite plates 100a and 100b. Composite plates 100a and 100b and reinforcing member 300a
And 300b are firmly bonded by an inorganic adhesive 301.

As shown in FIGS. 11 and 12, the composite plate of the present invention is used as a base material of a panel, and reinforcing members 200, 300a, and 300b made of noncombustible metal are bonded with inorganic adhesives 201 and 301. By doing so, the heat resistance and fire resistance of the entire panel can be significantly improved. Also, by using the reinforcing members 200, 300a and 300b, it is possible to significantly reduce the weight of the entire panel.

The embodiments disclosed above should be considered as illustrative in all points and not restrictive. The scope of the present invention is not the above embodiment,
It is indicated by the appended claims, and is intended to include all modifications and variations equivalent in meaning and scope to the appended claims.

[0056]

As described above, the composite plate of the present invention comprises a metal phosphate-based or alkali metal silicate-based inorganic adhesive and a plate-like body containing inorganic particles, and an inorganic adhesive. A non-combustible gas-permeable and aluminum-containing metal plate fixed on at least a portion of the plate-like body by the agent, so that the organic material is not used, The metal plate can be firmly adhered to the metal, and the heat resistance and fire resistance can be significantly improved. Further, since the composite plate of the present invention is configured as described above, it is possible to prevent the generation of an organic gas during the heating and press-forming in the manufacturing process. Furthermore, the composite board of the present invention can prevent aging and extend the life. In the composite plate of the present invention, by using a metal plate having air permeability and containing aluminum, the weight of the composite plate is reduced, heat insulation, durability, productivity, reliability, sound insulation, vibration isolation and mechanical properties are improved. Strength can also be improved.

Since the composite plate of the present invention employs a metal plate having air permeability and containing aluminum, it is not necessary to provide a through hole for drainage at the time of dehydration and curing of the inorganic adhesive. There is no risk of leakage of the inorganic adhesive or the inorganic granular material, which is an object, so that dehydration and curing can be easily performed, and the adhesive effect can be enhanced. Further, in the composite plate of the present invention, a metal plate containing aluminum and having air permeability can be easily sealed, and a composite plate excellent in design can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view of a composite plate according to Embodiment 1 of the present invention.

FIG. 2 is a schematic cross-sectional view showing a configuration of a permeable aluminum plate used for the composite plate of the present invention.

FIG. 3 is a schematic view showing another configuration of the inorganic foam contained in the air-permeable aluminum plate used for the composite plate of the present invention.

FIG. 4 is a partial cross-sectional view showing another configuration of a breathable aluminum plate in the composite plate of the present invention.

FIG. 5 is a cross-sectional view showing still another configuration of the air-permeable aluminum plate used for the composite plate of the present invention.

FIG. 6 is a sectional view of a composite plate according to Embodiment 2 of the present invention.

FIG. 7 is a sectional view of a composite plate according to Embodiment 3 of the present invention.

FIG. 8 is a sectional view of a composite plate according to Embodiment 4 of the present invention.

FIG. 9 is a sectional view of a composite board according to Embodiment 5 of the present invention.

FIG. 10 is a cross-sectional view showing one embodiment of the sealing treatment performed on the surface of the composite board of the present invention.

FIG. 11 is a sectional view of an elevator cab panel using the composite plate of the present invention.

FIG. 12 is a sectional view of a vehicle panel using the composite plate of the present invention.

[Explanation of symbols]

10: inorganic binder, 10a: inorganic molded body, 11, 11
a, 201, 301: inorganic adhesive, 12: inorganic granular material, 12a: hollow, 13: air bubble, 14: inorganic fiber, 2
0, 20a, 20b: breathable aluminum plate, 21: continuous phase, 22: inorganic foam, 22a: foam, 23: fibrous, 24: weather-resistant coating, 25: sealing layer, 50: rotating brush, 100 , 100a, 100b: composite board, 200,
300a, 300b: reinforcing members.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C09J 1/02 C09J 1/02 5/00 5/00 (72) Inventor Shoichi Makimoto Chuo-ku, Osaka City, Osaka 3-6-8 Kutarocho Toyo Aluminum Co., Ltd. (72) Inventor Mitomo Tomo 3-6-8 Kutarocho, Chuo-ku, Osaka-shi, Osaka F-term in Toyo Aluminum Co., Ltd. 4F100 AA01A AA01B AA03A AA04A AB01C AB10B AC02B AD00B AG00B BA02 BA03 BA07 BA10A BA10B BA13 CB00A DE01A DE04B DG00B DJ01B EJ082 EJ172 EJ422 GB07 GB08 GB31 HB00 JD02B JL10 YY00 4J040 AA011 HA066 HA286 HA316 HA346 HA356 JA09 MB03 MB03

Claims (22)

[Claims] 1. A plate comprising an inorganic adhesive of a metal phosphate type or an alkali metal silicate type and an inorganic particulate material, and a gas-permeable member fixed on at least a part of the plate member And a metal plate containing aluminum. 2. The plate-shaped body has one surface and the other surface, the metal plate includes a first metal plate fixed on one surface of the plate-shaped body, and a first metal plate fixed on one surface of the plate-shaped body. 2. The composite plate of claim 1 including a second metal plate secured to the other surface. 3. The composite plate according to claim 2, wherein a sealing treatment is applied to at least one outer surface of said first and second metal plates. 4. The composite board according to claim 1, wherein at least a part of an outer surface of the composite board is colored. 5. The composite plate according to claim 1, wherein a surface of the metal plate fixed to the plate-like body is subjected to a rust prevention treatment. 6. The method according to claim 1, further comprising a weather-resistant coating formed on a surface opposite to a surface of the metal plate fixed to the plate-like body. Composite board. 7. The air permeability of the metal plate is 10 ⁻⁸ cm / s.
^{7. The pressure} is not less than 10 ⁻⁷ cm / s and not more than 10.
The composite board according to any one of the above. 8. The water permeability of the metal plate is 10 ⁻⁹ cm / s.
The ^pressure is not less than 10 ^-8 cm / s and not more than 10 ^-8 cm / s.
The composite board according to any one of the above. 9. The composite plate according to claim 1, wherein the metal plate includes a continuous phase containing aluminum and an inorganic foam dispersed in the continuous phase. 10. The metal plate, wherein the inorganic foam is 3
The composite board according to claim 9, wherein the composite board contains 0% by volume or more and 70% by volume or less. 11. The method according to claim 9, wherein the inorganic foam is a shirasu balloon or a glass balloon.
The composite board according to 0. 12. The composite plate according to claim 9, wherein the metal plate includes a fibrous body. 13. The inorganic particulate material is at least one selected from the group consisting of aluminum particles, ceramic balloons, shirasu balloons, and glass balloons.
The composite board according to any one of claims 1 to 12, comprising a seed. 14. The composite plate according to claim 1, wherein the inorganic granular material is in the form of a hollow particle. 15. The plate-shaped body includes an inorganic molded body including the inorganic adhesive and the inorganic granular body, and is formed and cured in advance, and the metal plate has an inorganic adhesive on at least a part of the inorganic molded body. The composite board according to any one of claims 1 to 14, wherein the composite board is fixed via an agent. 16. The composite plate according to claim 1, wherein the plate-like body contains air bubbles. 17. The composite plate according to claim 1, wherein the plate-like body contains inorganic fibers. 18. A step of mixing a metal phosphate-based or alkali metal silicate-based inorganic adhesive with an inorganic particulate material to form a mixture, and a first air-permeable and aluminum-containing material. Disposing the mixture between the second metal plates to form a laminate; and heating the laminate while applying pressure to cure the mixture and apply the first mixture to the mixture.
And a step of fixing the second metal plate. 19. A step of mixing a metal phosphate-based or alkali metal silicate-based inorganic adhesive with an inorganic particulate material to form a mixture, and forming and curing the mixture in advance to form a plate. Forming an inorganic molded body of the above, a step of arranging the inorganic molded body between the first and second metal plates having air permeability and containing aluminum to form a laminate, and applying a pressure to the laminate. Fixing the first and second metal plates to the inorganic molded body by heating in the added state. 20. The method of manufacturing a composite plate according to claim 18, further comprising a step of performing a sealing treatment on at least one outer surface of the first and second metal plates. 21. An elevator panel comprising the composite plate according to claim 1. Description: 22. A vehicle panel comprising the composite plate according to claim 1. Description: