JPH11229527A - Fireproof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide excellent fireproof performance by arranging a metal sheet on the outer surface, arranging heat insulating foam inside the metal sheet via an inorganic material sheet, and arranging a metal sheet on the opposite side of the heat insulating foam to the inorganic material sheet. SOLUTION: A metal sheet 1 made of a color iron sheet with the thickness of about 0.5 mm is arranged on the outer surface, and an inorganic material sheet 2 made of a calcium silicate sheet having the thickness of about 6 mm and the inorganic material content of about 90% is arranged inside the metal sheet 1. Heat insulating foam 3 made of polyisocyanurate foam having the thickness of about 33 mm and the expansion ratio of 35 is arranged inside the inorganic material sheet 2, and a metal sheet 4 is stuck to the inner surface on the other face of the heat insulating foam 3 to mold a fireproof panel 10. Woods for fitting the fireproof panel 10 or for connecting the panels 10 together are arranged on both sides of the heat insulating foam 3, and both end sections of the metal sheets 1, 4 on both inner and outer surfaces are folded to wrap the woods 5. The lightweight fireproof panel 10 can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a temporary housing, a livestock barn,
The present invention relates to a fire prevention panel used for a wall, a floor, a roof, and the like of a storeroom and various other structures, and particularly to a fire prevention measure for the outside of a building and a heat insulation measure.

[0002]

2. Description of the Related Art This type of panel is generally classified into a specification for a fire protection area and a specification for a non-fire protection area. Of course, fire prevention performance is required for specifications for fire prevention areas, so thick metal plates can be placed on the inner and outer surfaces of the panel,
Alternatively, a non-combustible material such as a thick gypsum board is usually disposed between the thin metal plates. On the other hand, there is no requirement for such performance in specifications for areas other than fire prevention areas. Therefore, even when metal plates are arranged on the inner and outer surfaces of the panel, a thin metal plate is sufficient.

[0003] In addition, this type of panel is often provided with a heat insulating property regardless of the specification for a fire protection area and the specification for a non-fire protection area. In general, a synthetic resin foam is disposed inside. Therefore, in the case of a specification for a fire protection area, the use of a flame-retarded foam is inevitable.

[0004] As described above, in the case of a specification for a fire prevention area, the use of a thick metal plate, the use of a thick noncombustible material, or the use of a flame-retardant synthetic resin foam is indispensable. Compared to the specification for areas other than fire prevention areas, not only will it be heavier, but material costs and manufacturing costs will be higher,
From the viewpoint of the recent construction situation, economic situation, social situation, etc., it is urgently necessary to reduce the weight and the cost.

[0005]

SUMMARY OF THE INVENTION In order to meet the above-mentioned demands, the present invention has a structure capable of reducing material costs and manufacturing costs and has excellent fire protection performance on the outer surface of a building equivalent to a specification for a fire protection area. Another object of the present invention is to provide a lightweight and lightweight fireproof panel.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present inventor has conducted repeated studies. First, without changing the conventional specifications for areas other than the fire protection area, the same fire protection performance as the specification for the fire protection area was obtained. It was found that if a panel capable of expressing the above on the outer surface of a building could be provided, not only the material cost and the production cost could be reduced, but also an increase in weight could be prevented. As a result of further studies based on this knowledge, it was concluded that it is optimal to interpose an inorganic material plate between the metal plate on the outer surface and the synthetic resin foam inside in the conventional specifications for areas other than fire prevention areas. The conclusion has been reached.

That is, since the inorganic material plate not only has excellent fire protection performance, but is also inexpensive and easy to process, if this plate is arranged at the above-mentioned location, it can be used for a specification other than the conventional fire protection area. Without having to make significant changes to the fire protection area, and without significantly changing the panel manufacturing process for use in areas other than the fire protection area, fire protection panels for fire protection areas that can provide excellent fire protection measures outside the building It can be offered at a price.

The fire prevention panel of the present invention is based on the above findings and conclusions. A metal plate is disposed on the outer surface, and a heat insulating foam is disposed on the inside thereof through an inorganic material plate. A metal plate is arranged on the material plate side (that is, the inner surface) (that is, metal plate / inorganic material plate / heat insulation foam /
Metal plate). At this time,
The two metal plates have a thickness of 0.5 mm or less, and the inorganic material plate has a thickness of 6 wt.
mm or more.

In the present invention, the metal plates on both the inner and outer surfaces and the heat insulating foam provided inside these metal plates can be the same as the conventional panels for use in areas other than fire prevention areas. For example, as a metal plate, a thickness of 0.5 mm or less,
An iron plate, an aluminum plate, or an alloy plate such as stainless steel can be used. The lower limit of the thickness of the metal plate is not particularly limited. However, if the thickness is too small, the strength of the metal plate itself, as well as the strength of the panel and thus the strength of the building are reduced. It is appropriate to set the degree.

In addition, since the metal plate located on the outer surface generally constitutes the exterior surface of a building, at least the color metal plate whose outer surface side is colored, or a metal plate embossed, It is preferable to use decorated metal plates, such as variously drawn metal plates.

On the other hand, since the metal plate located on the inner surface generally constitutes the interior surface of a building, if the interior decoration (interior) is required depending on the type of the building, Like the metal plate located on the outer surface, at least the outer surface (non-insulated foam) side is colored metal plate, or embossed metal plate, or drawn metal plate of various shapes, etc. It is preferable to use a metal plate provided with such decoration.

As the heat insulating foam, for example, synthetic resin foams such as polyisocyanurate foam, phenol foam, urethane-modified polyisocyanurate foam, rigid urethane foam and extruded styrene foam can be used.

The expansion ratio of the above-mentioned heat-insulating foam differs depending on the type of synthetic resin and cannot be unconditionally determined, but may be appropriately selected according to the type of synthetic resin used and the desired heat-insulating performance.

Further, the thickness of the heat insulating foam is not particularly limited, and the thickness and the foaming ratio of the synthetic resin are taken into consideration.
It may be appropriately selected according to the desired heat insulation performance, but if it is too thick, there is a problem such as a rise in material cost, a problem such as a decrease in handleability and workability, and if it is too thin, practical heat insulation performance cannot be obtained, Generally, it is preferable to set the thickness to about 10 to 50 mm.

Examples of the inorganic material plate disposed inside the metal plate on the outer surface include a gypsum board, a calcium silicate plate, a flexible asbestos plate, a wood wool cement plate (hardened wood chips with mortar), asbestos A cement board, a wood chip cement board, a cellular concrete board and the like can be used. However, even with these inorganic material plates, if the content of the inorganic substance is less than 70% by weight, it may not be possible to obtain the fire protection performance of a panel for a fire prevention area, so that the inorganic material of the present invention may not be obtained. In the material plate, it is preferable to use a material containing 70% by weight or more of an inorganic substance.

The thickness of the inorganic material plate cannot be unconditionally determined because the fire prevention performance varies depending on the type of the inorganic material used.
What is necessary is just to select suitably according to the kind of the inorganic material used and desired heat insulation performance. However, in the case of using an inorganic material plate having an inorganic substance content of 70% by weight or more as described above, if the thickness is less than 6 mm, it is possible to obtain fire prevention performance about the same as a panel for a fire prevention area. Can not. The upper limit of the thickness of the inorganic material plate is not particularly limited, but if it is too thick, not only the effect of improving the fire prevention performance is saturated, but also the material cost increases, the weight increases, and the handling and workability are improved. In general, it is preferable to set the thickness to about 20 mm in order to cause a decrease or the like.

As described above, the fire protection panel of the present invention having the above-described structure can be manufactured by slightly changing the manufacturing process of a conventional panel for use in areas other than the fire protection area.

For example, first, a foamable synthetic resin material serving as a heat insulating foam is flowed on an inorganic material plate (or a metal plate serving as an inner surface), and a metal material serving as an inner surface is formed on the foaming material. A plate (or an inorganic material plate) is placed, and the inorganic material plate /
Manufactures a structure of heat insulation foam / metal plate (inner surface). At this time, the expansion ratio of the heat insulating foam can be adjusted by adjusting the amount of the foaming agent, adjusting the expansion temperature, and the like. The thickness can be adjusted by using a frame or the like (described later in FIG. 1). In this case, the panel mounting / connecting woods 5, 5 can be used as a frame for adjusting the thickness), and the expansion ratio can be adjusted. Next, the present invention having a configuration of metal plate (outer surface) / inorganic material plate / heat insulation foam / metal plate (inner surface) by sticking a metal plate as an outer surface on the inorganic material plate having the above configuration. Fireproof panels can be manufactured.

Further, a heat insulating foam having a desired expansion ratio and a desired thickness is manufactured in advance, or a heat insulating foam having a desired thickness is cut out from a block-shaped synthetic resin foam having a desired expansion ratio manufactured in advance. . Next, an inorganic material plate is attached to one surface of these heat insulating foams, and an inner surface metal plate is attached to the other surface, and an outer surface metal plate is attached on the inorganic material plate. The fire protection panel of the present invention having the above configuration can be manufactured.

In any of the above-mentioned production examples, a metal plate which is to be an outer surface and which is previously adhered to an inorganic material plate may be used.

[0021]

FIG. 1 is a schematic view for explaining an embodiment of a fire protection panel according to the present invention. FIG. 1 shows a side panel of a temporary house (that is, an exterior surface of a house). An example of a panel suitable for use as a panel having an inner wall surface) is shown. In the figure, reference numeral 10 denotes a fire panel body of the present invention (900 mm × 1800 mm × 40 mm).
1 is a metal plate to be the outer surface (in this example, the thickness is 0.1 mm).
5 mm is a color iron plate), 2 is an inorganic material plate (in this example, a 6 mm-thick calcium silicate plate having an inorganic material content of 90%) disposed inside the color iron plate 1, 3 is the inorganic material plate Insulation foam (thickness 3 in this example)
3 mm, a polyisocyanurate foam having an expansion ratio of 35 times), 4 denotes a metal plate serving as an inner surface (in this example, the same color iron plate as the metal plate 1 on the outer surface is used).

In the example shown in FIG. 1, woods 5, 5 (33 mm × 33 mm × 180) for attaching the fire protection panel 10 or connecting the panels 10 are provided on both sides of the heat insulating foam 3.
0 mm square wood), and both ends of the metal plates 1, 4 on both the inner and outer surfaces are bent in the thickness direction of the fire panel 10, and the metal plates 1, 4 wrap the wood 5, 5. It is configured as follows. However, these metal plates 1
It is important that the two end portions of 4 are not in contact with each other in order to prevent heat conduction on the inner and outer surfaces in terms of fire protection performance.

The fire protection panel 10 shown in this embodiment can be manufactured, for example, as follows. First, an inorganic material plate 2 of a predetermined size is fed onto an endless belt, an adhesive (for example, urethane-based adhesive) is applied to the inorganic material plate 2, and woods 5, 5 of a predetermined size are attached to both ends. .

Next, a foamable synthetic resin raw material is injected into the space formed by the inorganic material plate 2 and the woods 5 and 5, and the inside (on the side in contact with the raw material) is placed on the foaming raw material.
A metal plate 4 of a predetermined size, on which an adhesive (for example, urethane-based adhesive) is applied, is placed. At this time, the foaming of the synthetic resin raw material is performed by the inorganic material plate 2, the metal plate 4, and the woods 5, 5.
In this case, the foaming state is improved, and the thickness of the heat insulating foam 3 is naturally adjusted, so that a good heat insulating foam 3 can be obtained.

Thereafter, the top and bottom of this structure is turned over, and a predetermined-size metal having an adhesive (for example, urethane-based adhesive) applied to the inside (on the side in contact with the inorganic material plate 2) on the inorganic material plate 2 The plate 1 is placed. Finally, the respective ends of the metal plates 1 and 4 are bent toward the woods 5 and 5 so that the woods 5 and 5 are bent.
Attach to 5. All of the above steps can be performed on an endless belt.

In the above-mentioned production example, first, the metal plate 1 is fed onto the endless belt, an adhesive is applied thereto, and the inorganic material plate 2 is adhered.
The adhesive is applied to both ends, and the woods 5 and 5 are adhered. Thereafter, the process is changed to a step of injecting the foamable synthetic resin raw material, attaching the metal plate 4, and bending the metal plates 1 and 4. You can also. According to this manufacturing example, since it is not necessary to turn the structure upside down in the process, the manufacturing process can be further simplified.

Further, first, the metal plate 4 is fed onto the endless belt, an adhesive is applied thereto, and woods 5 and 5 are adhered to both ends. , Bonding the metal plate 1, and bending the metal plates 1 and 4. According to this manufacturing example, there is no need to turn the structure upside down during the process, and the manufacturing process can be simplified.

Alternatively, a heat insulating foam 3 having a predetermined size is
The fire prevention panel shown in FIG. 1 can also be manufactured by a method in which the fire prevention panel is prepared in advance by a conventional method, and is pasted with an adhesive.

<Example of Performance Evaluation> In order to evaluate the fire protection performance and the heat insulation performance of the fire protection panel of the present invention having the structure shown in FIG. 1, a general panel (900 mm × 1800 mm) having a specification other than the conventional fire protection area shown in FIG. × 34 mm). The configuration of the general panel shown in FIG. 2 is the same as the fire panel of the present invention shown in FIG. 1 except that the inorganic material plate 2 is not interposed between the color iron plate 1 and the heat insulating foam 3.

The fire prevention performance is evaluated by applying a method applied to a panel for a fire protection area specified in JIS A-1311 from the outer surface side of the panel (that is, the fire prevention performance on the outer surface side is evaluated). ) And insulation performance is JI
It was evaluated according to SA-1412. The results were as shown in Table 1.

Table 1 also shows JIS for reference.
Panels for fire prevention areas specified in A-1311 (9
(00 mm x 1800 mm x 25 mm) are shown together. The configuration of the panel for the fire prevention area was the same as that shown in FIG. 1 except that a 24 mm thick inorganic material plate 2 was used and the heat insulating foam 3 was not used.

[0032]

[Table 1]

As can be seen from Table 1, in terms of fire prevention performance, the fire prevention panel of the present invention having the structure shown in FIG. 1 has an outer surface side which is smaller than that of the conventional general panel shown in FIG. It is remarkably high, and it is understood that it is equivalent to a panel for a fire prevention area specified in JIS A-1311. Further, in terms of heat insulation performance, the fire prevention panel of the present invention having the configuration of FIG. 1 having the inorganic material plate 2 is significantly higher than the fire prevention area specification panel specified in JIS A-1311,
It can be seen that the configuration is the same as that of the general panel of the configuration shown in FIG. Further, the fireproof panel of the present invention shown in FIG. 1 in which the thickness of the color iron plates 1 and 4 is small is heavier by the weight of the inorganic material plate 2 than the general panel shown in FIG. It turns out that it is significantly lighter than the specified panel for the fire protection area.

[0034]

As described above, according to the fire protection panel of the present invention, the following effects can be obtained. (1) On the outer surface side, the fire protection performance can be made equal to that of a panel for a fire protection area, and excellent heat insulation performance can be obtained. (2) Since there is no significant change in the configuration of the general panel for use in areas other than the conventional fire protection area, the material cost is only slightly increased by the amount of the inorganic material plate compared to this general panel. Because there is no significant change in the manufacturing process,
In terms of manufacturing cost, the same or a slight increase is required. (3) In addition, a beautiful and elegant appearance equivalent to that of the above-mentioned general panel can be exhibited. (4) In addition, compared to a panel for a fire prevention area, the weight is extremely small, and handling and construction are improved.

[Brief description of the drawings]

FIG. 1 is a schematic view for explaining an example of an embodiment of a fire prevention panel of the present invention, showing an example suitable for use as a side panel of a temporary housing.

FIG. 2 is a schematic view showing a configuration of a conventional general panel for use in areas other than fire prevention areas.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal plate used as an outer surface 2 Inorganic material plate 3 Thermal insulation foam 4 Metal plate used as an inner surface 5 Wood 10 Fire panel main body 10 'of the present invention 10' General panel main body of specifications other than the conventional fire prevention area

Claims (2)

[Claims] 1. A fire panel comprising a metal plate disposed on an outer surface, a heat insulating foam disposed on an inner surface thereof through an inorganic material plate, and a metal plate disposed on a non-inorganic material plate side of the heat insulating foam. 2. The fire panel according to claim 1, wherein the metal plate has a thickness of 0.5 mm or less, and the inorganic material plate has a thickness of 6 mm or more made of a material containing 70% by weight or more of an inorganic substance.