JPH07238600A - Board-shaped fireproof member - Google Patents

Abstract

PURPOSE:To obtain a board-shaped nonflammable or flame resistant member with high strength and with light weight, by a method wherein a core member in honeycomb structure formed of a nonflammable or flame resistant material is held between two plate members which are arranged facing each other and have a nonflammable or flame resistant property. CONSTITUTION:A core member 2 in honeycomb structure formed of a nonflammable or flame resistant material is held between plate members 1, 1 which are arranged facing each other and of which the surfaces are covered with a nonflammable or flame resistant material. The core member 2 and the plate members 1, 1 are joined together with an adhesive or the like. A material 3 foaming by heating is held in spaces 2a formed of the plate members 1, 1 and the core member 2. In this way, a board-shaped fireproof member with high strength and with light weight can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate-like material such as a wall material or a ceiling material used inside a building such as a ship or a building,
In particular, it relates to a fireproof structure.

Conventionally, fireproof wall materials and ceiling materials which are non-combustible or flame-retardant or have a heat insulating action include wood such as plywood, chipboard, gypsum board, calcium silicate board and cement board. Plates made of gypsum, calcium silicate, cement, etc., or metal plates on the surface, and glass fibers such as glass wool and rock wool as core materials, mineral fibers made into plates There are many.

[0003]

However, the above-mentioned conventional plate-like materials such as wall materials and ceiling materials have problems of insufficient strength and too heavy weight. An object of the present invention is to provide a non-combustible or flame-retardant plate-shaped material having high strength and light weight.

[0004]

In order to achieve the above object, the present invention provides a non-combustible or flame-retardant material between two non-combustible or flame-retardant plate-shaped members which are arranged to face each other. It is characterized in that it sandwiches a core material having a honeycomb structure formed of a flexible material. Further, it is desirable that a material that foams when heated is provided in the hollow portion of the core material. Further, a porous core material formed of a non-combustible or flame-retardant material is sandwiched between two non-combustible or flame-retardant plate-like materials arranged facing each other, and the core material is heated. And a non-combustible or flame-retardant two plate-like materials that are arranged opposite to each other are held by a space holding member with a gap, and A structure in which a material that foams when heated is provided in the hollow part, or a material that foams when heated is carried on a porous core material formed of a noncombustible or flame-retardant material You can also

[0005]

Embodiments of the fireproof plate material of the present invention will be described with reference to the drawings. 1 (a) and 1 (b) are cross-sectional views of the plate-shaped material of the present invention, and the plates 1 and 1 on both sides are coated with a non-combustible or flame-retardant material on the surface. A core material 2 having a honeycomb structure is sandwiched between these plate materials 1 and 1.

The plate material 1 is preferably a thin steel plate coated with a flame-retardant resin from the viewpoint of aesthetics, strength, corrosion resistance and the like.
The thickness of the steel plate is about 0.6 mm in this embodiment, but metal plates other than steel plates and other refractory materials may be used, and various materials and thicknesses can be selected according to the application. . The core material 2 and the plate materials 1 and 1 are joined by an adhesive material or the like.

In the embodiment, the core material 2 having a honeycomb structure is made of a non-combustible or flame-retardant material, and has a hexagonal shape with a thickness T of 20 to 50 mm in the illustrated portion. However, this is a guideline even if it gets tired, and the shape and thickness should be decided according to the application.

On the inner wall of the space 2a between the plate material 1 and the core material 2, a substance 3 that foams when heated is placed. For this substance 3, sodium silicate, potassium silicate, etc. are used,
A solution of any of these is applied, sprayed, or impregnated.

In FIG. 2, the plate materials 1 and 1 are the same as those in the embodiment of FIG. 1, and the core material 4 uses a porous material formed of glass wool, rock wool or the like. Then, the porous hollow portion 4a is impregnated with the substance 3 that foams when heated as in the embodiment of FIG. With such a configuration, in the event of a fire or the like, the foam material 3 such as sodium silicate inside is heated by the external heat, foams as shown in the drawing, and closes the hollow portion 4a, thereby acting as a heat insulating material. Can prevent the spread of fire.

FIG. 3 shows that the surface-coated plate materials 1 and 1 are held by a spacing member 5 with a space therebetween, and a substance 3 that foams when heated is applied to the inner surface of the hollow portion by coating or pouring. It has a different structure.

FIG. 4 shows an example of a wall material or a ceiling material having strength only by the core material 6 without using the plate materials 1 and 1 on both sides.
The core material 6 is a non-combustible or flame-retardant porous material such as rock wool or glass wool, and its hollow portion 6a is impregnated with the substance 3 that foams when heated, as in the embodiment of FIG. Is carried by. When heated, the substance 3 foams to fill the hollow portion and block both sides of the core material to block heat transfer.

[0012]

According to the present invention, with the above construction, it can be manufactured at a low cost, and since it has a honeycomb structure, the strength can be increased and the weight can be reduced. By placing the foam material in the hollow portion, the heat insulation and fire resistance are further improved. Even if a porous structure is adopted instead of the honeycomb structure, the same effect can be obtained.

[Brief description of drawings]

FIG. 1 is a view of a fireproof plate-like material of the present invention, (a) is a vertical sectional view, and (b) is a sectional view taken along line I-I of (a).

FIG. 2 is a view of another embodiment of the present invention, in which the hollow portion of the core material contains a substance that foams when heated.

FIG. 3 is a view of yet another embodiment of the present invention, in which a spacing member is used in place of the core material, and a substance that foams when heated is accommodated in the hollow portion.

FIG. 4 is a cross-sectional view of another embodiment of the present invention, in which a foam material is supported on a core material having a porous structure.

[Explanation of symbols]

 1 plate material 2, 4, 6 core material 3 material that foams when heated 5 spacing member

Claims (5)

[Claims] 1. A core material having a honeycomb structure formed of a non-combustible or flame-retardant material between two non-combustible or flame-retardant plate-like materials (1, 1) arranged facing each other. A plate-like material for fireproofing, which is characterized by sandwiching 2). 2. The fireproof plate material according to claim 1, wherein a material (3) that foams when heated is provided in the hollow portion of the core material. 3. A porous core material formed of a non-combustible or flame-retardant material between two non-combustible or flame-retardant plate-like materials (1, 1) arranged facing each other. A plate-like material for fireproofing, which is provided with a material (3) which sandwiches 4) and which is foamed by being heated by the core material. 4. A non-combustible or flame-retardant two plate materials (1, 1) arranged opposite to each other are held by a space holding member (5) with a gap therebetween, and a hollow portion between the plate materials. A fireproof plate-like member, characterized in that it is provided with a material (3) that foams when heated. 5. A fire-resistant plate-shaped member, characterized in that a porous core material (6) made of a non-combustible or flame-retardant material carries a material (3) which foams when heated. .