JPH06193158A - Fire-proof partition panel - Google Patents

Abstract

PURPOSE:To obtain a durable light fire-proof partition panel by the insulating and heat-insulating effect of granular inorganic core member having plenty of crystalline water. CONSTITUTION:Granular inorganic materials 7 having plenty of crystalline water in the space surrounded by steel-surface panels 1 at both sides are contained as a granular inorganic material zone 2 retaining a large porosity. The periphery is surrounded by peripheral panel frames 3. The strength of panel is chiefly kept by the superficial steel. The granular inorganic material zone is useful chiefly for serving as heat insulating and fire-proof functions and as a binder of superficial steel panels in the strength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight fireproof partition panel capable of withstanding heating for a long time.

[0002]

2. Description of the Related Art The fire resistance performance required for each part of a building, which is required to have a fire resistant structure in the Building Standard Law, is stipulated in the law, but a partition wall also requires one hour or two hours. It is specified to withstand heating. There are various wet types such as those that are reinforced concrete and have a thickness of 10 cm or more to comply with this regulation, but as dry type, gypsum board is laminated, cement extrusion molded plate, water supply material dispersed inside There are a cement board mixed in, and a relatively lightweight cellular gypsum board in which air bubbles are present inside the gypsum board.
However, all of them are heavy and weigh more than 50-60 kg per square meter, and even a relatively light aerated gypsum board weighs about 40 kg per square meter, making it difficult to construct, and the movable partition has a large weight. Is a big obstacle when moving. Various efforts have been made to reduce this weight, and some are made of lightweight inorganic fibers, but one that can withstand a long period of heating, such as one hour fire resistance and two hour fire resistance. Has not been put into practical use yet. In addition, most of the above require makeup on the surface after attachment, and there is a troublesome problem when the makeup must be installed in a place where makeup is difficult after attachment.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a fireproof partition panel which is lightweight and does not require makeup on the surface after installation and has good workability and a long time.

[0004]

In order to solve the above-mentioned problems, the present invention fills a space surrounded by steel plates on both sides of a panel with inorganic substance particles in which a large amount of crystal water is retained or a board composed of inorganic substance grains. However, it is used as a heat insulating layer with high heat insulation performance and low bulk density, and in the high temperature region on the heated side, radiative heat transfer, which is the main component of heat transfer, is suppressed, and the particulate matter retains the heat flow from the heated side. The crystal water is absorbed by evaporation, and the combined effect of these is to suppress the rise of the back surface temperature of the partition panel for a certain required time. In addition, the surface of this panel is covered with a steel sheet that has been painted and decorated, and the panel that integrates this steel sheet and the inorganic material board-shaped molded body realizes a partition panel with sufficient strength despite its light weight. .

A second aspect of the invention is mainly composed of gypsum granules having a large amount of crystal water of about 21% or ettringite having a crystal water content of about 46% for filling the space surrounded by the panel surface plates on both sides. Granulated granules, endothermic when these granules are thermally decomposed by heat transfer due to heating of the panel surface, and a large amount of crystal water held by them is released and evaporated, and small and large voids inside the granular packing. The heat insulating effect of the air present in the above and the heat insulating effect of the granular filler itself are combined to suppress the temperature rise on the back surface of the panel in a complex manner.

A third aspect of the invention is to add a suitable organic or inorganic binder to the surface of a granular material mainly containing gypsum or ettringite as a substance for filling the space surrounded by the panel surface plates on both sides. We provide another method of assembling this panel by forming it into a raised board, the panel manufactured by this method is convenient for cutting at the time of dimension adjustment at the construction site, and the panel manufacturing method. Since it is simple, it can handle a wide range of conditions.

A fourth aspect of the invention is to add an inorganic fiber such as ceramic fiber or rock wool together with a binder when making a millet-like board for filling a space surrounded by steel plates on both sides of the panel. The voids are further filled with these inorganic fibers to some extent, and the heat insulating effect by air is enhanced.

In a fifth aspect of the present invention, gypsum or cement or a siliceous raw material is mixed with a suitable additive on the surface of a millet-like board filled in a space surrounded by steel plates on both sides of the panel and kneaded with water. It is applied so that a part of it will enter the millet-like board and the surface will form a smooth surface. it can.

A sixth aspect of the present invention is to bond a gypsum board, a cement board, or a calcium silicate board to the surface of a millet-like board that fills the space surrounded by the steel plates on both sides of the panel. In the case where the panel is made by bonding the surface steel plate, even if the internal millet-shaped board has weak strength, the combination of the plate laminated on the surface and the panel surface steel plate realizes a fireproof partition panel with sufficient strength. To do.

A seventh aspect of the present invention is a high-strength elongated plate such as a gypsum board, a cement board, or a calcium silicate board at an appropriate pitch in a millet-like board filled in a space surrounded by panel surface steel sheets on both sides. The skeleton is arranged in the vertical direction so that the upper and lower surfaces of the skeleton are exposed at the same level on both sides of the board, and this is bonded to the panel surface steel plate to form a panel. What is done constitutes a fireproof partition panel that is very strong in strength due to the function of the bone body.

An eighth aspect of the present invention is to fill a space surrounded by panel surface plates on both sides with granular binder mainly composed of gypsum or ettringite together with a binder, and to fill another space with a fireproof partition panel. At the same time as providing, it will be possible to modify the existing noncombustible partition panel to have fireproof performance.

[0012]

When the fireproof partition panel constructed as described above is heated from one side by a fire, the granular filler inside the panel surface steel sheet initially acts as a heat insulating material to form heat resistance against heat conduction and radiant heat. However, as the temperature rises with the passage of time, the water of crystallization held by the granular packing begins to evaporate and absorb heat to suppress the rise in temperature. The heat transfer is small because the particles in the granular packing layer are in contact with each other in a small area, but the air in many small voids in the layer has a large thermal resistance, so the thermal conductivity of the granular packing layer is small . Further, the granular packing layer has a large resistance to a large amount of radiant heat in the high temperature region on the heating side.

[0013]

1 is a sectional view taken along the line A--A in FIG. 2 showing one embodiment of the present invention, in which 1 is a panel surface steel sheet, 2 is a granular inorganic substance layer, and 3 is a panel peripheral frame.

In the structure of FIG. 1, the required strength as a partition panel is mainly played by the panel surface steel sheet, and in terms of strength, the granular inorganic substance layer plays a role of connecting the panel surface steel sheets on both sides. In such a structure, the strength of the granular inorganic material layer itself may be low in order to provide the necessary strength as a partition panel, and the specifications of the granular inorganic material layer may be determined mainly for heat insulation and fire resistance performance. it can. When this partition panel is under normal use conditions, the granular inorganic material layer acts as a sound absorbing and heat insulating layer with many small voids therein, and when combined with the panel surface steel plate, realizes excellent sound insulating and heat insulating partition panel.

When this partition panel is heated at a high temperature from one side due to a fire, the granular inorganic material layer reduces heat transfer by radiation, heat transfer by conduction, and heat transfer by convection, and at the same time its own crystals. It releases water and prevents the temperature from rising due to heat absorption by evaporation, and keeps the temperature of the back surface of the panel below a certain temperature for a necessary time.

FIG. 2 shows an example of a partial sectional view of an assembly of the present fireproof partition panel. The granular inorganic material layer is surrounded by the panel peripheral frame and the panel surface steel sheet, and one fireproof partition panel body 4 is provided.
Make up.

FIG. 3 shows a milled board 5 formed by adding a binder to a granular inorganic material. The thus molded product can be used in various ways as long as it has a strength higher than the strength required for handling, and the particle size, porosity, binder type, additives, etc. are changed to meet the usage conditions.

FIG. 4 shows that when the granular inorganic material is molded into a millet-shaped board, the inorganic fibers 6 are added together with the binder to make the voids between the inorganic substance particles 7 into finer voids. It may also play a role of retaining the shape of the granular inorganic material layer when heated to a high temperature.

FIG. 5 is a plan view of a granular inorganic substance formed into a millet-like board, and the surface of the board is coated with a mixture of gypsum or cement or a siliceous raw material mixed with water and kneaded. The hardened layer 8 having a slightly penetrated outer surface and having a smooth outer surface is formed to easily and firmly bond the panel surface steel sheet and at the same time increase the strength of the board itself.

FIG. 6 shows the case where a granular inorganic material is molded into a millet-like board and a gypsum board or a cement plate or a thin core material surface plate 9 of calcium silicate plate is bonded to the surface of the millet-like board. The panel surface steel plate is reinforced so that the required plate thickness of the panel surface steel plate does not become large even if it is particularly weak.

FIG. 7 shows an elongated plate-shaped high-strength bone body 10 obtained by cutting and processing a gypsum board, a cement board, or a calcium silicate board at a proper pitch in a board formed by milling a granular inorganic substance into a millet shape. Direction, and so that the upper and lower surfaces of the skeleton are exposed at the same level on both sides of the board, the skeleton and the panel surface steel plate are adhered to form a panel. The structure of the fireproof partition panel is extremely strong regardless of the strength of the board due to the action of the bones.

[0022]

As described above, the refractory partition panel of the present invention has a structure in which the space between the surface steel sheets on both sides is filled with a granular inorganic substance containing a large amount of water of crystallization in a state of high porosity, The fire resistance is high due to the combined effects of the heat insulation performance of the granular inorganic substance itself, the heat resistance of the air in the air gap, and the heat absorption due to the evaporation of crystal water. With this type of fire protection panel, a thickness of 60 mm is required in this panel. The equivalent fire resistance performance can be obtained from 45 mm to 50 mm. Other types of fire-resistant panels weigh 50-60 kg per square meter, whereas this panel can weigh about 30-35 kg per square meter for transportation.
There are great advantages in terms of mounting and replacement. Further, since the surface steel sheet has a role as a decorative member as well as a strength member, it is possible to provide a fire-resistant partition panel having high fire resistance performance as a whole, strong strength, and good appearance.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a partial sectional perspective view of a fireproof partition panel according to the present invention.

FIG. 3 is a perspective view of a board in which a granular inorganic material is molded into a millet shape.

FIG. 4 is a diagram showing a case where inorganic fibers are arranged in voids between granular inorganic substances.

FIG. 5 is a cross-sectional view of a board formed in a millet-like shape on which a smooth gypsum layer or the like is formed.

FIG. 6 is a cross-sectional view of a thin gypsum board or the like laminated on the surface of a board formed into a millet shape.

FIG. 7 is a cross-sectional view of a board formed into a millet-like shape in which bone bodies such as a gypsum board are arranged at an appropriate pitch.

[Explanation of symbols]

 1 Panel Surface Steel Plate 2 Granular Inorganic Material Layer 3 Panel Perimeter Frame 4 Fireproof Partition Panel Main Body 5 Milled Rice Board 6 Inorganic Fiber 7 Inorganic Material Grain 8 Smooth Surface Layer 9 Core Material Surface Plate 10 High Strength Bone Body

Claims (8)

[Claims] 1. A refractory partition panel characterized in that a space surrounded by steel plates on both sides of the panel is filled with a granular inorganic substance containing a large amount of water of crystallization. 2. The fire-resistant partition panel according to claim 1, wherein the granular substance filled in the space surrounded by the steel plates on both sides of the panel is a granular substance mainly containing granular gypsum or ettringite. 3. A millet-like board having a large porosity by adding an inorganic or organic binder to a granular substance mainly composed of granular gypsum or ettringite for filling a space surrounded by steel plates on both sides of the panel surface. The refractory partition panel according to claim 1, wherein: 4. A molding board in which a substance for filling a space surrounded by steel plates on both sides of the panel is granular gypsum or a granular material mainly composed of ettringite, to which an inorganic or organic binder and inorganic fiber are added. The fireproof partition panel according to claim 1, wherein 5. A millet pattern with a high porosity formed by adding a mineral or organic binder to granular gypsum or ettringite-based granules for filling the space surrounded by the steel plates on both sides of the panel. 2. The fire-resistant partition panel according to claim 1, characterized in that a plaster or cement or a calcium silicate hardened layer having a smooth outer surface slightly penetrated into the surface granular layer is formed on both surfaces of the board. 6. A millet pattern with a high porosity formed by adding a mineral or organic binder to granular gypsum or ettringite-based granules to fill the space surrounded by the steel plates on both sides of the panel. The fireproof partition panel according to claim 1, wherein a gypsum board, a cement board, or a calcium silicate board is adhered to both surfaces of the board. 7. A millet pattern with a high porosity formed by adding an inorganic or organic binder to granular gypsum or ettringite-based granules as a substance filling the space surrounded by steel plates on both sides of the panel surface. Characterized in that the long and slender plate-like bone bodies with a proper pitch are arranged in the board in the longitudinal direction so that the upper and lower surfaces of the bone bodies are exposed at the same level on both surfaces of the board. Claim 1
Fireproof partition panel as described. 8. The fireproof partition panel according to claim 1, wherein the space surrounded by the panel surface plates on both sides is filled with a granular material mainly composed of granular gypsum or ettringite together with a binder.